Mean Charlson Comorbidity Index Score Research Articles

Assessing the alignment of obstructive hypertrophic cardiomyopathy pharmacological treatments with ESC guidelines in Germany

Abstract Introduction The European Society of Cardiology (ESC) recently updated treatment guidelines for hypertrophic cardiomyopathy (HCM). Purpose The aim of this study was to describe the treatment of obstructive HCM in Germany and assess alignment with the 2014 and 2023 ESC guidelines. Methods Adults with HCM were identified using a nationally representative administrative claims dataset (WIG2 Benchmark database) from several German Statutory Health Insurances between 2012 and 2018. Obstructive HCM was identified as any obstructive HCM diagnosis (ICD-10: I42.1) or any HCM diagnosis (I42.2, I42.9) with septal reduction therapy. The index date was defined as the date where the patient met all eligibility criteria for HCM. Minimum follow-up time was set to one year. Patients had at least 1 year of baseline data prior to the index HCM diagnosis and were followed up for at least 1 year after the diagnosis (or until death within 1 year). Patients with phenocopies were excluded. ESC guideline-directed pharmacological treatments for HCM included beta-blockers (BB), calcium channel blockers (CCB), disopyramide, and/or mavacamten (approved by EMA June 2023). While the 2014 ESC Guidelines on Diagnosis and Management of HCM were applicable during the study, recommendations pertaining to the use of non-vasodilating BBs and non-dihydropyridine (DHP) CCBs did not change in the 2023 ESC Guidelines for the Management of Cardiomyopathies; thus, this study applies to both. Results Out of 6793 patients with HCM analysed in the period 2012-2018, 1,141 had obstructive HCM. The average follow-up was 5 years. Patients were mostly male (62%) with a mean age of 60 years. Hypertension, hyperlipidaemia, coronary artery disease, heart failure, and atrial fibrillation were among the most common comorbidities; the mean Charlson Comorbidity Index score was 2.3. At index, 46% of patients were on BB monotherapy, 23% were on CCB monotherapy, <1% were on a combination of BBs or a combination of CCBs, 9% were on a combination of BBs and CCBs, and as many as 22% received no HCM treatment. Patients experienced 1615 unique treatment combinations throughout the study across all lines of therapy (Table 1). The most common treatments were bisoprolol (24%), metoprolol (19%), amlodipine (12%), and verapamil (12%). The use of propranolol was negligible (1%). 43% of pharmacological treatments were not in line with ESC guidelines. The most common reason for not aligning was using DHP-CCBs or vasodilating BBs. Conclusion This study shows that 57% of obstructive HCM treatments received by patients during the study were aligned with recommendations from the 2023 ESC guidelines on cardiomyopathies. Research is needed to investigate barriers and enablers to implementing the guideline including awareness of recommended treatments, as well as the management of comorbidities.

Implementation of Medical Hospitalist Care at a Korean Tertiary Hospital: A Retrospective Cross-Sectional Study.

Background/Objectives: In March 2018, a tertiary teaching hospital launched a medical hospitalist team. This study presents the clinical characteristics and outcomes of medical hospitalist care and reveals the relationship between them. Methods: This study included 4003 patients first admitted to the hospitalist team via emergency room and then discharged from the hospitalist team between March 2018 and November 2022. The patients were admitted either to the teaching admitter hospitalist team or the hospitalist-led acute medical unit (AMU). Afterward, the patients were either discharged, if possible, within a few days or transferred to ward hospitalists if assigned wards for hospitalist care were available. Results: The patients' mean Charlson Comorbidity Index score was 3.5 and the mean National Early Warning Score was 3.4. Of the admissions, 44.2% of the patients were admitted to the AMU, and 26.8% received an early consultation with a subspecialist. Each hospitalist managed 12.8 patients per month on average. The patients' mean LOS was 14.52 days, 10.5% of patients died during hospitalization, and 13.0% of patients had unscheduled readmission within 1 month. The patients' mean total cost per hospital stay was 572,836 won per day. Admission to the AMU was associated with a lower total cost per hospital stay, but the relationships with mortality, readmission, and LOS were not significant. Conclusions: The study reports on the outcomes of implementing a medical hospitalist care system that combines short-term admission wards with integrated care models to manage complex cases. These findings provide insights into optimizing hospitalist systems for improved patient outcomes.

Nonoperative management of glenoid baseplate failure in reverse shoulder arthroplasty

BackgroundGlenoid baseplate failure in reverse total shoulder arthroplasty (RSA) remains a challenging problem. Nonoperative management may be an option in certain patients. The purpose of this study was to evaluate outcomes following nonoperative management of glenoid baseplate failure after RSA. MethodsUtilizing a single-institution database, a retrospective review was performed to identify patients from 2010 to 2019 who sustained glenoid baseplate failures after RSA and were treated nonoperatively. The exclusion criteria included revision surgery and presence of active infection. Included patients had a minimum 2-year clinical and radiographic follow-up. Chart review captured patient demographics, surgical indications, and techniques. Radiographs were reviewed to determine the etiology of baseplate failure and other implant complications. Glenosphere inclination angle was measured on true anteroposterior radiographs immediately postoperatively and after baseplate failure. ResultsEighteen patients had glenoid baseplate failures treated nonoperatively during the study period. Five patients were deceased, leaving 13 patients who were available for clinical follow-up. Twelve (92%) patients were successfully contacted. The mean age was 77 years, body mass index was 28, and 8 out of 12 were female. The mean Charlson Comorbidity Index score was 4.1. The mean preoperative American Shoulder and Elbow Surgeons (ASES) score was 43.0, and visual analog scale (VAS) pain was 6.3. At a mean 5.7-year follow-up, patients had an ASES score of 49.2, VAS pain of 4.3, single assessment numeric evaluation of 49%, and 50% of patients were satisfied with their outcome. The preoperative and final follow-up ASES and VAS scores were similar. The average time from index surgery to baseplate failure was 19 months. Of the eighteen identified patients, 16 (89%) failures resulted in increased baseplate superior tilt (7 with concomitant broken baseplate screws). For these 16 patients, the mean glenosphere inclination angle after failure (131°) was significantly greater than the initial inclination angle (100°), P = .03. The other 2 failures resulted in increased baseplate anteversion. 8 out of 18 (44%) patients had bone grafting at the time of surgery. When comparing dissatisfied and satisfied patients, there were no specific patient characteristics or radiographic parameters that were associated with satisfaction. ConclusionNonoperative management of glenoid baseplate failure yields modest patient-reported outcomes, with 50% patient satisfaction at mid-term follow-up. The mortality rate in this cohort of patients was almost 30%. Therefore, in select patients, nonoperative treatment of RSA baseplate failure may be a reasonable option.

Efficacy of Rezūm water vapor therapy for the treatment of catheter-dependent urinary retention: A single-center, Canadian experience.

Urinary retention secondary to benign prostatic hyperplasia (BPH) requiring catheterization is a prevalent and morbid condition. The objective of this study was to evaluate the real-world efficacy and safety of Rezūm as the primary treatment of catheter-dependent urinary retention. A single-center, retrospective study analyzed patients with catheter-dependent urinary retention secondary to BPH who were treated with Rezūm between April 2022 and April 2024. Standardized postoperative followup was required for inclusion. Patient demographics, medication use, volume drained at time of urinary retention, catheter-free status, complications, and postoperative International Prostate Symptom Score (IPSS) was collected. A total of 53 patients were included. Mean age was 73.4 years (standard deviation 9.4), and the mean Charlson comorbidity index score was 3.7. The baseline mean prostate volume was 81.7 (range 33-179) mL. Patients were catheter-dependent for an average of 225 (range 30- 1821) days prior to surgical intervention. Average followup time was 10.2 months. Of the 53 patients treated, 42 (79%) patients were able to become catheter-free after treatment. Twenty-six (49%) patients failed their initial trial of void at 14 days postoperatively; 11% (n=6) of patients experienced hematuria with one admitted to hospital due to hematuria/clot retention. There were no Clavien Dindo ≥3 complications. Only retention volume ≥1 L was a significant independent predictor of treatment failure on univariate and multivariate logistic regression analysis. Rezūm effectively treated catheter-dependent urinary retention. Given the simplicity of treatment, accessibility, and minimal anesthetic requirements, providers should consider Rezūm to minimize indwelling catheter-related morbidity for catheter-dependant patients.

Clival chordomas and chondrosarcomas in Denmark—Outcomes in 33 patients following the national centralization of treatment in 2010

PurposeThis 13-year consecutive case series aims to provide a comprehensive overview of all patients operated for clival chordomas and clival chondrosarcomas in Denmark since the centralization of treatment in 2010, comparing outcomes to international series.MethodsThis was a retrospective review of 33 patients with clival tumors, comprising 22 chordomas and 11 chondrosarcomas, who were treated at Copenhagen University Hospital between years 2010 and 2023. Data were collected from digital patient records and pathology reports.ResultsThe symptoms leading to diagnosis primarily included double vision, headaches, and dizziness. In general, patients were in good health, with a mean Charlson Comorbidity Index score of 1.6. The complication rate of the index surgery was 51.5%. Adjuvant radiotherapy was applied in 51.5% of the cases. In patients with clival chordomas, the mean age was 51.1 years, ranging from 16 to 83 years. At the time of diagnosis, the mean tumor volume was 20.9 cm3 and the five-year overall survival rates were 79.1% (95% confidence interval (CI): 62.4–100). In patients with chondrosarcomas, the mean age was 48.2 years, ranging from 15 to 76 years. At the time of diagnosis, the mean tumor volume was 22.3 cm3 and the five-year overall survival 90% (95% CI: 73.2–100).ConclusionThe centralized treatment of clival tumors in Denmark demonstrates incidence, survival, and complication rates comparable to those found in other international series. Given the variations in treatment strategies, tumor localizations across series, and small sample sizes, the further analysis of larger compiled multicenter datasets for clival tumors could provide more solid evidence regarding the management of these rare tumors.

Effect of statin use on long-term survival after diagnosis of colorectal cancer: Emulating hypothetical target trials using a nationwide real-world database.

82 Background: Observational studies suggest that statin use after colorectal cancer (CRC) diagnosis is associated with improved survival. However, potential bias due to misalignment of time zero in observational studies may distort associations and therefore requires validation using robust epidemiological methods. We aimed to emulate a hypothetical randomized trial—a target trial—for estimating per-protocol effects of statin initiation in patients with incident colorectal cancer on long-term survival. Methods: To emulate a target trial using real-world data, we extracted information from 103,005 patients diagnosed with CRC between 2005 and 2015 from the Korean National Health Insurance (KNHI) database, encompassing health records for the entire Korean population. We excluded individuals who had been prescribed statins for at least 180 days before the CRC diagnosis or those with missing or incomplete demographic information. We set a 180-day grace period and compared the group that initiated statin treatment within 180 days after the CRC diagnosis with the non-statin group using the “clone-censor-weight” method. Patients' demographic and socioeconomic information, along with colorectal cancer treatment, were included as baseline covariates. Additionally, the Charlson Comorbidity Index (CCI) score was included both as a baseline covariate and as a time-varying covariate. Hazard ratios (HRs) for all-cause mortality and CRC-specific mortality within 60 months of baseline were calculated using pooled logistic regression models. Results: Among the 103,005 patients diagnosed with CRC, 88,516 were finally analyzed after the exclusion process. A total of 2,071 (2.3%) individuals initiated statin treatment during the grace period and 86,445 (97.7%) patients did not. Statin initiators, compared with statin noninitiators tended to be older (mean age: 65.7 vs. 62.6) and had a higher CCI score at baseline (mean CCI score: 1.38 vs.1.26). Individuals who initiated statin treatment did not reduce the hazard of all-cause mortality (The adjusted HR 1.01, 95% CI 0.98-1.04) and CRC-specific mortality (The adjusted HR 1.01, 95% CI 0.97-1.04). Conclusions: The results of the analysis after removing potential biases showed that statin was not related to improving survival in CRC patients. The study results conflict with those of previous observational studies but are consistent with the findings of other recently conducted target trial emulations.

Unveiling the Effects of the COVID-19 Pandemic on Lung Cancer Surgery.

The aim of this study is to investigate the impact of the COVID-19 pandemic on the surgical treatment of lung cancer patients. Data from patients who underwent surgery during the pandemic were analyzed and compared to pre-pandemic and post-pandemic periods. Multiple parameters were examined, and their changes yielded significant results compared to other periods of the study. The statistical analysis revealed a significant decrease in the number of surgical interventions during the pandemic (p < 0.001), followed by a significant rebound thereafter. During this period, there was a significant increase in the T stage of cancer compared to both pre-pandemic and post-pandemic periods (p = 0.027). Additionally, the mean Charlson comorbidity index score was significantly higher during the pandemic compared to the pre-pandemic period (p = 0.042). In this crisis period, a significant decrease was recorded in both the total hospitalization duration (p = 0.015) and the pre-operative hospitalization duration (p = 0.006). These findings provide evidence of significant changes in clinical and therapeutic strategies applied to lung cancer surgery patients during the study period. The pandemic has had a substantial and complex impact, the full extent of which remains to be fully understood.

#1280 Temporal trends in chronic kidney disease and mortality after acute kidney injury

Abstract Background and Aims In 2015, the International Society of Nephrology formulated the “0by25” initiative, which aims to eliminate all preventable deaths due to acute kidney injury (AKI) by 2025. Numerus publications have added focus to the importance of clinical awareness and improved treatment for AKI. Ideally, this should translate to lower rates of AKI-associated adverse outcomes such as chronic kidney disease (CKD) and death. To our knowledge, there are no studies describing temporal trends in the incidence of CKD following AKI. Moreover, only a few studies have examined the temporal trends in mortality following AKI and these studies included highly selected groups of patients not representative of general hospitalized patients and to an even lesser degree the general population. Hence, further examination of the prognosis after AKI is required to understand temporal trends in the quality of care for AKI and establish a foundation for both preventive and therapeutic measures. Therefore, we examined the temporal trends in CKD and mortality after AKI in Denmark. Method We identified adult individuals with AKI from 1 January 2007 to 31 December 2018 using population-based plasma creatinine (pCr) data covering both the primary care and hospital settings. AKI was defined in accordance with the Kidney Disease: Improving Global Outcomes (KDIGO) creatinine criteria. CKD after AKI was defined as ≥2 eGFR measurements from primary care or planned outpatient hospital visits &amp;lt;60 mL/min/1.73 m2 separated by a period of ≥90 days or by a hospital diagnoses code related to chronic dialysis or kidney transplantation. Information on all-cause death was obtained from the Danish Civil Registration System. Annual crude and sex-and-age-standardized 1-year incidence rates of CKD and mortality after AKI were estimated using direct standardization. Results During the 2007-2018 period, 406,207 AKIs were identified in 274,269 distinct Danish residents. The mean age at the time of first AKI was 72 years (IQR, 61; 81) and 137,185 (50%) of first-time AKIs occurred in males. Twenty-eight percent of individuals had a Charlson Comorbidity Index (CCI) score of 0, while 42% had a CCI score of 1-2, and 30% a CCI score ≥3. The mean age, sex, and CCI score distributions were stable across the study period. The age- and sex-standardized incidence rate of CKD after AKI ranged from 102 (95% CI, 99-106) per 1000 person-years in 2018 to 126 (95% CI, 119-133) per 1000 person-years in 2014. Besides a peak in 2014, the incidence of CKD after AKI showed little variation throughout the period. The age-and sex-standardized mortality rate after AKI ranged from 317 (95% CI, 311-323) per 1000 person-years in 2018 to 392 (95% CI, 379-406) per 1000 person-years in 2007. From 2007 to 2013 there was a stable decline in the mortality rate after AKI. From 2014 to 2018 the rate showed little variation. Conclusion The rate of CKD after AKI was stable throughout the period, while there was a decline in mortality after AKI, especially in the years from 2007 to 2013. The decline in mortality after AKI is encouraging; however, the stable rate of CKD after AKI, despite increasing knowledge on AKI treatment and CKD prevention, warrants an evaluation of the contemporary quality of care for AKI in Denmark.

Abstract PO1-09-07: Outpatient mastectomy is a safe surgical option for patients treated in a rural Appalachian tertiary facility

Abstract Background The feasibility of the outpatient mastectomy in a rural setting is poorly characterized. Centers treating rural patient populations have unique challenges. Limited access to resources and distance to facilities that can care for post-surgical patients are two such challenges. The aim of this study is to analyze the efficacy and safety of an outpatient mastectomy program in our tertiary care facility treating rural Appalachian patients. Methods We performed a single-institution retrospective review of all patients with breast cancer over 18 years of age who underwent a mastectomy with or without immediate alloplastic breast reconstruction at JW Ruby Memorial Hospital from 2019-2022. Our primary objective was to determine the 30, 60, and 90-day readmission rates. Our secondary objective included an analysis of perioperative pain control variables to develop an enhanced recovery protocol. Data collected included age, ethnicity, prognostic factors, stage at diagnosis, surgical treatment, opioid and non-opioid based treatments pre- and postoperatively by milligram morphine equivalents (MMEs), comorbidities as analyzed by the Charlson comorbidity index (CCI) variables, and distance from the tertiary hospital. Results We identified thirty-two women between 2019-2022 who underwent same-day mastectomy at JW Ruby Memorial Hospital in Morgantown, West Virginia. The mean age was 55.4 years. The mean distance to the hospital was 22.1 miles with a maximum distance of 111 miles (SEM = 3.90). The mean CCI score was 2.9 (SEM = 0.51). Overall readmission rates at 30- 60- and 90-days were 6.3% (n = 2), 3.1% (n = 1) and 0%, respectively. One woman was readmitted eight days postoperatively from a unilateral mastectomy and sentinel lymph node biopsy without reconstruction for an expanding hematoma of the chest after resuming anticoagulation on postoperative day three. The other two patients were admitted for unrelated surgical reasons. Thus, readmission related to surgical complications alone was 3.1% (n = 1). Preoperatively, 90.6% (n = 29) of women received a local anesthetic block by the anesthesia provider. Neither a preoperative nor intraoperative block was given to the remaining three. Bilateral mastectomies occurred in 21.9% (n = 7) of women and 78.1% (n = 25) underwent unilateral mastectomy. Of these 32 women, 25.0% (n = 8) underwent immediate staged reconstruction with tissue expanders. There were no direct-to-implant reconstructions in this population. There were twenty-six sentinel lymph node biopsies and four axillary dissections performed. The mean MMEs received for the duration of the hospital encounter was 132 (SEM = 23.4). An enhanced recovery after surgery protocol was not used. Discussion Outpatient mastectomy is a safe and effective option for eligible patients living in rural settings. Factors such as the type of mastectomy, reconstruction, the patient's overall health status, and the availability of support at home can impact the feasibility of this approach. Careful patient selection and a multidisciplinary team including the patient, surgeon, and anesthesiologist should carefully assess the individual’s circumstances to determine if outpatient mastectomy is appropriate. Implementation of enhanced recovery after surgery protocols will be further investigated and guided by this study. Citation Format: Gregory Stimac, Kristin Lupinacci, Michael Cowher, Hannah Hazard-Jenkins. Outpatient mastectomy is a safe surgical option for patients treated in a rural Appalachian tertiary facility [abstract]. In: Proceedings of the 2023 San Antonio Breast Cancer Symposium; 2023 Dec 5-9; San Antonio, TX. Philadelphia (PA): AACR; Cancer Res 2024;84(9 Suppl):Abstract nr PO1-09-07.

Racial disparities among patients with cardiac sarcoidosis and arrhythmias in the United States: A propensity matched-analysis from the national inpatient sample database 2016-2020

BackgroundCardiac sarcoidosis (CS) is frequently associated with conduction abnormalities and arrhythmias. In this study, we aim to evaluate racial disparities in the frequency of arrhythmias, and associated co-morbidities, among patients with CS. MethodsWhite and African American (AA) patients diagnosed with CS were identified and compared from the 2016-2020 National Inpatient Sample (NIS) database whilst adjusting for confounders via logistic regression models. ResultsA total of 7,935 patients with CS were included in the study. The propensity-matched sample comprised of 5,570 patients, of whom 2,785 were White and 2,785 were AA. AA patients had a longer mean length of hospital stay (LOS) (7.84 vs. 6.94, p<0.01), a higher mean Charlson Comorbidity Index (CCI) score (3.10 vs. 2.84, p<0.01), and significantly higher incidences of cardiogenic shock [(9.2% vs 6.3%, p<0.01), aOR 1.45 (95% CI 1.17-1.78), p<0.01] and acute kidney injury (AKI) [(34.3% vs. 26.9%, p<0.01), aOR 1.41 (95% CI 1.24-1.61), p<0.01]. From an arrhythmia perspective, AA CS patients were shown to have a lower frequency of: (1) ventricular tachycardia (32.5% vs. 37.9%, p<0.01), (2) ventricular fibrillation (5.4% vs.7.2%, p<0.01), (3) first-degree AV block (1.8% vs. 4.1%, p<0.01), (4) complete AV block (6.3% vs. 14.2%, p<0.01), and (5) atrial fibrillation (31.8% vs. 34.8%, p=0.016) when compared to Whites with CS. Mortality remained higher for AAs (3.8% vs. 2.7%, p=0.024). ConclusionOur study demonstrates a higher incidence of cardiac arrhythmias among White patients but a higher incidence of cardiogenic shock, AKI, mean LOS, and mortality among AA patients with cardiac sarcoidosis.

Re-Analyses of 8 Historical Trials in Cardiovascular Medicine Assessing Multimorbidity Burden and Its Association with Treatment Response

ObjectiveThe purpose of this study was to examine the multimorbidity burden of clinical trial participants and assess its association with treatment response. MethodsWe conducted a reanalysis of patient level data. There were 29,954 participants from 8 clinical trials containing 11 comparisons between an intervention and control condition. Patients were classified by Charlson Comorbidity Index (CCI) score. The primary outcomes were the primary study endpoints as originally specified for each trial. A Cox model that included the CCI score groups, the randomized group, and their interaction, was used to compare the primary outcome between randomized groups. The interaction term between randomized group and comorbidity index allowed the treatment effect to differ by level of comorbidity index and comprised the primary effect of interest. Hazard ratios and risk differences were reported for all comparisons. ResultsThe mean CCI scores of trial populations ranged from 2.1 to 3.9 points, and the percentage of patients with scores ≥5 from 3% to 39%. Tests of interaction terms in models yielded P values ≤ .10 for 4/11 comparisons and ≤ .05 for 2/11 comparisons. In 3 additional comparisons, potentially important treatment variation on an absolute scale was observed despite interaction tests with P values > .10 on the relative scale. ConclusionsThese trials were mainly composed of patient populations with CCI scores ≤4. Despite this, biologically plausible treatment interactions were commonly suggested. These results are hypothesis generating; confirmation of results would require larger studies or studies targeted specifically toward patients with higher levels of multimorbidity.

Real-world antifibrotic treatment patterns in patients with idiopathic pulmonary fibrosis: retrospective analyses of two large healthcare administrative databases in the United States.

Real-world data on the use, healthcare resource utilization (HCRU), and associated costs of antifibrotic therapies in patients with idiopathic pulmonary fibrosis (IPF) are limited. To assess the prevalence of antifibrotic treatment, characteristics of patients receiving treatment, discontinuation rates, and HCRU and costs associated with treatment. This retrospective study analyzed de-identified longitudinal and cross-sectional data, respectively, from two US claims databases: Optum's de-identified Clinformatics® Data Mart Database (CDM; commercial claims, Medicare Advantage) and the Veterans Health Administration (VHA) database. The study periods were October 1, 2013-March 31, 2019 and October 1, 2014-September 30, 2019, respectively. Eligible individuals were adults with ⩾1 diagnosis claim for IPF. Antifibrotic prevalence, patient demographics, treatment discontinuation rates, and HCRU and costs were determined separately for each cohort and described using summary statistics. Bivariate comparisons were analyzed using Chi-square and Student's t-tests for categorical and continuous variables, respectively. Overall, 4223 and 4459 eligible patients were identified in the CDM and VHA databases, respectively. Prevalence of antifibrotic uptake was 9.2% and 29.1% and the rate of index treatment discontinuation was 47% and 66% during follow-up in the CDM and VHA cohorts, respectively. Antifibrotic-treated patients were significantly younger (p < 0.0001) with lower mean Charlson Comorbidity Index scores at baseline versus untreated patients in both cohorts. In the CDM cohort, the number of outpatient and pharmacy visits was significantly higher in treated versus untreated patients during follow-up (both p < 0.0001). A similar trend was observed for the VHA cohort. Total follow-up costs in both cohorts were significantly higher in treated versus untreated patients due to higher pharmacy costs (CDM; p < 0.0001) or higher outpatient and pharmacy costs (VHA; p < 0.0001). The low prevalence of antifibrotic usage in both cohorts, together with the high rate of antifibrotic discontinuation, and increased HCRU and costs in treated versus untreated patients, support the need for novel treatment options for IPF. Not applicable.

CHANGES IN MULTIMORBIDITY AMONG HOSPITALIZED ADULTS IN THE US

Abstract Having multiple chronic health conditions, or multimorbidity, is common among adult inpatients and is associated with risk of death, disability, and reduced quality of life. This investigation examines prevalence trends of multimorbidity over time among inpatients based on age, sex, and race and assesses hospitalization rates for individual diseases over time. Retrospective cross-sectional analysis of 2012-2018 US National Inpatient Sample datasets was completed. Participants were hospitalized patients ≥55y from community hospitals. ICD-9 and 10 codes for admitting diagnoses were used to calculate disease burden using the Charlson Comorbidity Index (CCI) and Elixhauser Comorbidity Index (ECI). Unweighted mean index scores and admission rates for diseases were compared. Mean age for the sample was 72y, and inpatients were mostly female (53%) and White (77%). The mean comorbidity scores increased across the sample: mean CCI increased from 1.69 to 1.97 and mean ECI increased from 3.66 to 4.14. Comorbidity scores were higher over time with increasing age until about age 80-84 (for CCI) and age 85-89 (for ECI) and increased similarly among males and females. Black and Native American inpatients had the largest increase in mean CCI and ECI scores. Comorbidities with increased hospitalization rates included congestive heart failure (+5%), dementia (+6%), complicated diabetes (+14%), complicated hypertension (+17%), renal disease/failure (+5%), and obesity (+5%). Growing disease burden among inpatients supports the continued need for programs aiming to prevent and treat chronic diseases and multimorbidity, especially among underrepresented populations including Black and Native American communities.

Health and Care Needs of Young Adults Exiting Jail.

Reentry is a difficult juncture for young adults (ages 18-24 years), who simultaneously face challenges of emerging adulthood. Although their health-related needs may be substantial, little is reported on young adults' reentry health care and social service needs. Furthermore, empirical measurements of factors affecting their engagement in reentry services after jail are lacking. We sought to describe health needs and predictors of linkages to reentry services for the 2,525 young adult participants in the Whole Person Care-LA Reentry program (WPC Reentry). Descriptive statistics were calculated and chi-square tests, t tests, and logistic regression were performed to identify factors associated with linkage to WPC Reentry postrelease compared with only engaging with WPC Reentry prerelease. Most participants (72.6%) were male, 80.2% were Hispanic or Black, and 60.9% had been unhoused. Mental health (57.2%) and substance use disorders (45.8%) were common, physical health was overall good (mean Charlson Comorbidity Index score 0.53), and social needs, especially housing, were high (40.7%). Older age (i.e., closer to 25 years) and history of being unhoused were associated with higher postrelease engagement in WPC Reentry (age: odds ratio [OR] = 1.06, p = .01; history of being unhoused: OR = 1.18, p = .05). Attentiveness to younger clients and to addressing housing needs may be key for successful reentry care linkages.

Outcome Predictors of Percutaneous Cholecystostomy As Definitive Versus Bridging Treatment for Acute Cholecystitis.

Introduction Percutaneous cholecystostomy (PC) is a treatment option for patients with acute cholecystitis (AC) who are too unwell, or too morbid for laparoscopic cholecystectomy (LC). Some patients have PC as a definitive treatment, whereas others have PC as a bridging treatment prior to LC. The aim of this study is to investigate patient characteristics and mortality among those who received PC as definitive treatment versus bridging treatment. Methods Our study retrospectively reviewed all patients treated with PC for AC from February 2019 to November 2022 at the Torbay and South Devon NHS Foundation Trust, Torquay, England. Fifty patients underwent PC for AC, with 48 patients having follow-up data available for analysis. Of these, 26 patients (54%) only received PC (definitive PC), and 22 patients (46%) later underwent LC (bridging LC). Results In this study, 68.8% of the patients were male, with a mean age of 76 ± 9 years. The overall mean Charlson Comorbidity Index (CCI) score was 4.96 ± 1.12, and the mean American Society of Anesthesiologists (ASA) score was 2.83 ± 0.36. The median PC drain duration was 42 days. Six patients (12.5%) had a recurrence of AC with a mean of 57 days onset after PC insertion. Twelve patients (25%) experienced PC complications: 11 (23%) were minor, involving pain or a dislodged tube, and one (2%) was major, resulting in a subhepatic abscess. The median duration from PC insertion to LC surgery was 50.5 days. The bridging LC cohort had a 30-day and one-year mortality of 0%, while the definitive PC cohort had a 30-day mortality of 30.8% (eight patients) and a one-year mortality of 46.1% (12 patients). The bridging LC cohort compared to the definitive PC cohort had a significantly lower CCI (4.39 vs 5.57, p<0.05), and a significantly lower ASA (2.61 vs 3.04, p<0.05). The one-year survival cohort compared to the 30-day mortality cohort had significantly lower ASA (2.71 vs 3.25 p<0.05), and a non-significantly lower CCI (4.66 vs 5.86 p=0.094). The presence of negative predictive factors of respiratory dysfunction and hyperbilirubinemia had higher 30-day and 90-day mortality rates of 31.3% and 37.5%, compared to their absence of 9.4% and 21.4% respectively. Conclusion Our results demonstrate that PC is a safe procedure with a high success rate and low complications. We showed that PC is an effective treatment option for bridging a select cohort of patients to receive a delayed LC. Furthermore, the data suggests ASA and CCI scoring can be used as clinical adjuncts to assess whether bridging patients from PC to LC is appropriate. Finally, ASA, respiratory dysfunction, and hyperbilirubinemia can be used as significant negative predictors of post-PC mortality.

Abstract A131: Clinical characteristics and outcomes of Black patients with multiple myeloma compared with other races

Abstract Introduction: Black patients with multiple myeloma (MM) in the US have a greater incidence rate, inferior survival, and younger onset of MM vs other races. This analysis evaluated differences in clinical characteristics between Black patients compared with other races with MM to determine the impact on survival outcomes. Methods: Data were retrospectively collected from the ConcertAI Patient360 database containing aggregated electronic health record data of patients treated in US-based oncology centers. Adult patients diagnosed with MM (2011–2022) who received ≥1 line of systemic therapy and had ≥3-month follow up were included. Patients were stratified by race (Black vs other [American Indian/Alaska Native, Asian, Native Hawaiian/other Pacific Islander, White, and other/unknown]). Baseline characteristics were compared between races using Chi-squared tests. Outcomes included first-line (1L), overall survival (OS), and progression-free survival (PFS), estimated by Kaplan-Meier. The impact of race and characteristics on outcomes was evaluated with Cox proportional hazards models. Results: Black patients (n=806) vs other races (n=3164), were younger (63.3 vs 67.4 years, p&amp;lt;0.001) with greater prevalence of concurrent cancer (13.3% vs 10.6%, p=0.027) at time of diagnosis, and higher baseline mean Charlson Comorbidity Index (CCI) score (0.48 vs 0.39, p=0.047). Black patients vs other races more frequently had diabetes without complications (14.8% vs 10.3%, p&amp;lt;0.001), renal disease (3.7% vs 1.7%, p&amp;lt;0.001), and AIDS/HIV (1.4% vs 0.1%, p&amp;lt;0.001), and 1L therapy regimen use (p=0.56) did not differ between races. The proportion progressing to 3L was 20.5% vs 19.2% among Black vs other races. Among overall patients, median (95% CI) 1L OS and PFS in months was similar between Black patients and other races (OS: 129 [109, 167] vs 133 [122, 157]; PFS: 39.5 [35.0, 45.3] vs 38.1 [36.2, 40.5]). Survival outcomes did not differ between races before (Hazard ratio [HR] [95% CI]; OS: 0.97 [0.84, 1.11]; PFS: 0.91 [0.82, 1.01]) or after adjusting for patient characteristics (OS: 1.13 [0.97, 1.31]; PFS: 1.0 [0.89, 1.12]). Characteristics impacting outcomes regardless of race included age (50–64 vs &amp;lt;50 years; OS: 1.48 [1.13, 1.95]); PFS: 1.32 (1.11, 1.57), CCI score (OS: 1.15 [1.10, 1.20]; PFS: 1.06 [1.02, 1.10]), and ECOG score 2–4 vs 0–1 (OS: 1.76 [1.08, 1.37]; PFS: 1.52 [1.35, 1.71]; p&amp;lt;0.01). Conclusions: Although 1L survival outcomes were similar between races, Black patients were younger at diagnosis with more comorbidities. Since improved survival outcomes were associated with younger age, fewer comorbidities and lower ECOG score, prompt diagnosis and care are needed. Funding: Financial support for the study was provided by AbbVie. AbbVie and Genentech participated in interpretation of data, review, and approval of the abstract. All authors contributed to development of the abstract and maintained control over final content. No honoraria or payments were made for authorship. Citation Format: Shelli Spence, Junhua Yu, Allicia Girvan, Sophia Ng, Sophia Li, Faiza Zafar, Archibong Yellow-Duke, R. Frank Cornell. Clinical characteristics and outcomes of Black patients with multiple myeloma compared with other races [abstract]. In: Proceedings of the 16th AACR Conference on the Science of Cancer Health Disparities in Racial/Ethnic Minorities and the Medically Underserved; 2023 Sep 29-Oct 2;Orlando, FL. Philadelphia (PA): AACR; Cancer Epidemiol Biomarkers Prev 2023;32(12 Suppl):Abstract nr A131.

Real-World Treatment Patterns and Patient Outcomes in Relapsed/Refractory Hodgkin Lymphoma in the US

Introduction Brentuximab vedotin (BV), a CD30-directed monoclonal antibody, and programmed cell death-1 inhibitors (PD-1; e.g., nivolumab, pembrolizumab) are efficacious for the treatment of adult patients with Hodgkin lymphoma (HL) at high risk of relapse or progression post-autologous stem cell transplantation (ASCT). In this study, we investigated the real-world treatment patterns and outcomes of patients with relapsed/refractory HL (RRHL) who had received ≥1 line of therapy (LOT). Methods Patients ≥18 years old with evidence of RRHL in ≥1 inpatient or ≥2 outpatient physician medical notes or evidence of ≥1 autologous/allogeneic hematopoietic stem cell transplant (HSCT) procedure following evidence of HL in the Humedica Electronic Medical Record (EMR) database, were selected between October 1, 2016 and September 30, 2020. The earliest evidence of RRHL (medical note or HSCT procedure) was defined as the patient's index date. Patients were excluded if they had evidence of RRHL, non-Hodgkin's disease, other primary cancers, or metastatic disease in the 12 months prior to the index date (baseline period). Patient demographic and clinical characteristics were evaluated during the baseline period and the index date. Patients were followed from their index date until patient death or the end of recorded healthcare activity during which treatment patterns and outcomes were assessed. Results A total of 342 patients with ≥1 LOT post-RRHL during the follow-up period were included in the final study population. Mean age was 44.2 years, 56.7% were male, 75.7% were white, and 61.4% had commercial insurance; mean Charlson Comorbidity Index score was 3.2 (Table 1). Approximately one-third (34.5%) of patients were not eligible for HSCT based on available laboratory data and comorbidity diagnoses during the baseline period or the index date. Across the study population, the average follow-up duration was 25.6 months (median: 23.9 months). Among the overall study population, 90 (26.3%) patients received BV treatment, with most (~86%) receiving BV in LOTs 1 and 2 post-RRHL evidence (Table 2). The average time from index date to initiation of BV treatment was 2.5 months and mean duration of treatment (DOT) with BV was 4.3 months. Most patients treated with BV (n=68) had not received a HSCT. During the follow-up, among those who received BV but not a PD-1 (n=57), the progression-free survival (PFS) rate was 73.7% and overall survival (OS) was 82.5%. Among the overall study population, 56 (16.4%) patients received a PD-1, with most patients (~68%) receiving a PD-1 in LOTs 1 and 2 post-RRHL evidence. The average time from index date to initiation of PD-1 treatment was 5.5 months and mean DOT with a PD-1 was 5.3 months. Among those patients who received a PD-1 but not BV (n=23), the PFS rate was 56.5% and OS was 69.6%. One patient received post-HSCT BV+PD-1 combination maintenance therapy. Among the patients who received BV and/or a PD-1 prior- or post-HSCT, 12 (52.2%) received BV prior to the HSCT and 9 (39.1%) received BV after the HSCT. Among those who received BV and PD-1 treatments (i.e., not at the same time; n=33), the PFS rate was 60.6% and OS was 90.9%. Among the study population, a majority of patients (n=232; 67.8%) did not receive a HSCT during the follow-up period (including the index date). Of these patients without a HSCT, 68 (29.3%) received BV, 46 (19.8%) received a PD-1, and 25 (10.8%) received both BV and a PD-1 (i.e., not at the same time). Conclusions In this real-world evaluation of the treatment patterns and outcomes among patients in post-RRHL evidence setting, BV was administered more frequently in patients without HSCT. Increasing the use of BV in patients with ASCT at high risk for relapse or progression may lead to improved clinical outcomes. This study was based on EMRs from a single administrative database and has a limited sample size; these findings may not apply to all patient populations in post-RRHL evidence setting in the US.

Outcomes of Septuagenarians and Octogenarians with Monoclonal Gammopathy of Undetermined Significance Admitted for Acute Pulmonary Embolism

Introduction: Monoclonal gammopathy of undetermined significance (MGUS) is clinically defined with a serum monoclonal immunoglobulin of less than 3 g/dL and the presence of less than 10% of plasma cells in the bone marrow, in the absence of any end-organ damage that is typically seen in patients with multiple myeloma. The incidence of MGUS mostly involves the elderly, with a median age estimated at 70 years. While some studies have linked MGUS with a hypercoagulable state, there are no large studies investigating the impact and outcomes of MGUS in the elderly with pulmonary embolism(PE). We thus propose a national analysis to investigate. Methods: Our retrospective study via the National Inpatient Sample (NIS) focused on adults admitted with a primary diagnosis of Acute Pulmonary Embolism. We excluded all cases of ages &amp;lt;70 years and &amp;gt;90 years. Patient characteristics in acute PE cases with and without MGUS such as age, sex, race, and presence of various comorbidities such as diabetes, hypertension, obesity, among many, were explored via Chi-Square tests, t-tests, and Mann-Whitney U tests as appropriate. Differences in outcomes for PE in MGUS and non-MGUS patients were estimated via logistic regression models on SPSS 29.0. A p-value of &amp;lt;0.05 was considered as statistically significant. To comply with the database provider's (HCUP) guidelines, we did not report values &amp;lt;11. Results: Among the 327090 septuagenarians and octogenarians admitted primarily for acute PE in our study, there were 1095 (0.3%) patients with a diagnosis for MGUS that also reported a higher mean Charlson Comorbidity Index (CCI) score (4.26 vs. 2.90, p&amp;lt;0.01) (Table 1). While 51.1% of MGUS cases with acute PE were males, the non-MGUS group mainly consisted of females (56.1%, p&amp;lt;0.01). Medicare covered 91.3% and 90.8% of all MGUS and non-MGUS cases in our study, and 68.9% and 66.3% of all admissions involved Urban-teaching centers, respectively. Around 11.0% of MGUS cases also had a history of prior pulmonary embolism, while it was 8.0% in the non-MGUS cohort (p&amp;lt;0.01). The MGUS cohort also showed a lower prevalence of hypertension (41.1% vs.46.7%, p&amp;lt;0.01) while having a higher prevalence of peripheral vascular disease (11.4% vs. 5.1%, p&amp;lt;0.01), smoking status (40.6% vs. 37.8%, p=0.049), lipid disorders (56.6% vs. 50.6%, p&amp;lt;0.01), and chronic kidney disease (35.6% vs. 20.0%, p&amp;lt;0.01) than the non-MGUS group. MGUS patients showed lower odds of experiencing in-patient events such as myocardial infarction (aOR 0.345, 95% CI 0.221-0.538, p&amp;lt;0.01), acute kidney injury (aOR 0.843, 95% CI 0.719-0.990, p=0.037), and respiratory compromise (aOR 0.749, 95% CI 0.652-0.860, p&amp;lt;0.01). While a higher odds of cardiogenic shock (aOR 1.903, 95% CI 1.316-2.753, p&amp;lt;0.01) was also noted, patients with and without MGUS had no differences related to in-hospital mortality (aOR0.721, 95% CI 0.513-1.013, p=0.060) or the need for IVC filters (aOR 1.156, 95% CI 0.924-1.446, p=0.206). MGUS patients also experienced a longer stay (mean length of stay 4.91 vs. 4.62 days, p&amp;lt;0.01). Conclusion: This nationwide data analysis suggests a higher prevalence of a history of previous PE in MGUS cases admitted for PE than those without MGUS. Furthermore, while odds of events involving in-patient myocardial infarction, acute kidney injury, or respiratory compromise in MGUS patients were lower, they had a higher risk of cardiogenic shock. It is thus vital for physicians to be on the watch-out of such complications and provide adequate testing and care in a timely manner to improve their prognosis and outcomes.

Healthcare Resource Utilization and Costs Among Newly Diagnosed and Relapsed/Refractory Acute Myeloid Leukemia (AML) Patients: A Retrospective Cohort Study Using Contemporary US Claims

Introduction: Prognosis for acute myeloid leukemia (AML) patients is generally poor, with rapid progression and high probability of relapse. AML has previously been associated with high healthcare resource utilization (HRU). Changes in the AML treatment landscape may have impacts on the economic burden of AML: since 2017, seven new systemic therapies have been approved for various AML patient populations, including those unfit for intensive therapy. The frequency of hematopoietic stem cell transplantation (HSCT) has also increased over this period. This retrospective cohort study aims to characterize first-line (1L) and second-line (2L) healthcare resource utilization (HRU) and costs in newly diagnosed (ND) and relapsed/refractory (R/R) AML patients, in the context of newly available AML treatments from 2017-2022. Methods: A large US administrative claims database (Optum) was used to identify ND AML patients between January 1, 2016, and August 31, 2022. The “ND index date” was defined as the first date a non-R/R AML diagnosis code was observed. To confirm that the initial AML diagnosis represented a true case of AML, ≥2 subsequent AML diagnoses within 60 days post-index were required. A washout period of 12 months was used to confirm no previous AML diagnosis. ND patients were required to have continuous enrollment from 1 year prior to the index until at least 30 days after the index date or death, whichever was earlier. A subgroup of R/R patients was then identified: all ND cohort members who 1) had an R/R AML diagnosis code, 2) had continuous enrollment between ND and at least 30 days after the R/R index date, and 3) did not receive 1L HSCT after the ND index date were eligible for inclusion. In this subgroup, the “R/R index date” was defined as the first date an R/R AML diagnosis code was observed. Patient per-patient-per-month (PPPM) HRU and costs were followed through the earliest of HSCT, clinical trial enrollment, death, loss of enrollment, end of data availability (September 30, 2022),or R/R diagnosis (for ND patients only). All results were reported descriptively by line of therapy and treatment received (HSCT vs. non-HSCT). Subgroup analyses were performed by age category. Results: We identified 3,145 ND and 644 R/R AML patients who received treatment over the study period. 3.4% of all treated ND patients received HSCT in 1L (n=107), while 19% of all treated R/R patients received HSCT in 2L (n=122). HSCT patients were younger and healthier than non-HSCT patients, reflecting selection into HSCT treatment by underlying patient characteristics (for ND patients, mean age at diagnosis 71.4 vs. 61.1; Mean Charlson Comorbidity Index (CCI) score 2.8 vs. 2.0; unfit for intensive chemotherapy 69% vs. 36%, Table 1). Patients receiving HSCT in 1L and 2L appeared to have more outpatient encounters (ND: mean 7.4 vs. 5.6; RR: mean 7.5 vs. 6.1, PPPM) than those not receiving HSCT. Number of inpatient days appeared somewhat higher among transplant recipients in 1L, but were similar to non-transplant recipients in 2L ( Table 2). While baseline pre-AML costs increased with age in 1L ($4,478 among patients 75 or older, $3,508 among patients younger than 65, PPPM), 1L follow-up costs were highest in the youngest cohort and lowest in the oldest cohort ($74,083 vs. $40,547, PPPM). Treatment-associated PPPM costs (medical + pharmacy) appeared higher in 1L vs. 2L ($54,457 vs. $48,595). When stratified by transplant status, total PPPM costs for patients receiving HSCT in 1L were higher than for those not receiving HSCT ($74,538 vs. $53,751), driven primarily by higher medical costs ($70,757 vs. $50,283). The same pattern was observed in 2L transplant vs. non-transplant patients ($56,380 vs. $46,979 total costs, $51,712 vs. $41,986 medical costs). Conclusions: The economic burden of AML for both ND and R/R patients in the context of newly available therapies remains substantial. Total costs were comparable but slightly higher for 1L therapy as compared to 2L, and significantly higher among patients receiving HSCT compared to those not receiving HSCT in both 1L and 2L. Decreasing economic burden with age was driven by lower medical costs associated with higher rates of supportive/palliative care, suggesting a lack of available active treatment options among older AML patients.

Predictors of Immune Thrombocytopenic Purpura in COVID-19 Positive Elderly Admitted in the Pre-Vaccination Era of the Pandemic; An Analysis Via the 2020 National Inpatient Sample

Introduction: Immune thrombocytopenia (ITP) involves an autoimmune destruction of platelets secondary to factors such as lupus erythematosus or viral conditions, e.g., COVID-19. With the onset of the pandemic in 2020, several reports of ITP in COVID-19 patients were published. However, to date, very limited information exists on the factors influencing the odds of ITP among the elderly who were COVID-19-positive before the introduction of mass vaccination campaigns. Hereby, we seek to bridge the knowledge gap via an in-depth analysis of hospitalization records. Methods: Our retrospective analysis via the 2020 National Inpatient Sample included admissions of patients ages≥60 years with a primary diagnosis of COVID-19. As the COVID-19 vaccination began on a large scale in December 2020 in the US and the ICD-10 code ‘U071‘ was introduced in April, we restricted our sample to admissions between April to November 2020 for better accuracy of results. Logistic regression models were used to estimate various patient characteristics that affected the odds of a diagnosis of ITP. Results: Between 1st April 2020 and 30th November 2020, there were 507860 patients of 60 and more years hospitalized primarily for COVID-19. An estimated 830 cases developed ITP, with an incidence rate of 163 cases per 100,000 COVID-19-positive patients. Multiple comorbidities such as a history of autoimmune conditions (aOR 1.982, 95% CI 1.483-2.648, p&amp;lt;0.01), chronic kidney disease (aOR 1.652, 95% CI 1.375-1.984, p&amp;lt;0.01), and cirrhosis (aOR 4.119, 95% CI 2.964-5.724, p&amp;lt;0.01) showed higher odds of ITP. Racial disparities were also noted as compared to Whites, Blacks (aOR 0.523, 95% CI 0.417-0.657, p&amp;lt;0.01) and Hispanics (aOR 0.461, 95% CI 0.355-0.600, p&amp;lt;0.01) showed reduced odds. Furthermore, Medicaid insurers also had lower odds (aOR 0.411, 95% CI 0.244-0.694, p&amp;lt;0.01) than those insured by Medicare. Hypertension (aOR 0.747, 95% CI 0.624-0.894, p&amp;lt;0.01) and long-term aspirin use(aOR 0.700, 95% CI 0.572-0.856, p&amp;lt;0.01) also showed fewer events of ITP (Table 1, Figure 1). The mean Charlson Comorbidity Index (CCI) score was higher among those who had ITP (mean score of 4.20 vs. 3.08, p&amp;lt;0.01). Furthermore, patients with ITP also experienced a longer stay (12.29 days vs. 8.34 days, p&amp;lt;0.01). Events of ITP among the elderly with COVID-19 were linked with a poorer prognosis as 27.1% of all patients died (vs. 15.2% in the non-ITP group, aOR mortality 1.880, 95% CI 1.585-2.230, p&amp;lt;0.01). Conclusion: Our results provide the first report of factors linked with the risk of ITP among the elderly with COVID-19. Various conditions such as autoimmunity and racial disparities have previously been reported to influence events of ITP, as also seen in our study. We further report higher odds among patients with cirrhosis and chronic kidney disease, while those with hypertension and long term aspirin use had lower odds. ITP also led to a higher mortality rate. Broader studies can help understand the impact of our findings during the pre-vaccination era, which can help set a template for protocols among the elderly in future pandemics.