Lower Risk Of Readmission Research Articles

Diabetes does not increase in-hospital or short-term mortality in patients undergoing surgical repair for type A aortic dissection: insight from the national readmission database

BackgroundPrevious studies have reported a protective effect of type 2 diabetes on the incidence and progression of aortic aneurysms. We investigated whether this protective effect extends to aortic dissections.MethodsData from the US Nationwide Readmission Database (2016–2019) were analyzed. Patients admitted for open surgery repair of acute type A aortic dissection (TAAD) were initially analyzed (index group). Those discharged alive were followed for up to 30 days (readmission group). The co-primary outcomes were in-hospital and 30-day mortality.ResultsBetween 2016 and 2019, 7,324 patients were admitted for open surgical repair of acute TAAD, of whom 965 (13.2%) had diabetes. Patients with diabetes were older and had a higher prevalence of obesity, hypertension, smoking, dyslipidemia, and chronic kidney disease (CKD). 15.2% of patients with diabetes and 14.6% without diabetes died; hence, diabetes did not have a significant impact on in-hospital mortality (adjusted odd ratio [aOR] = 1.02 [0.84–1.24]). Similarly, diabetes was not associated with a higher adjusted risk of atrial fibrillation (aOR = 1.03 [0.89–1.20]), stroke (aOR = 0.83 [0.55–1.26]), cardiogenic shock (aOR = 1.18 [0.98–1.42]), but increased the risk of acute renal failure (aOR = 1.20 [1.04–1.39]). Within 30 days of discharge, 154 (15.9%) patients with diabetes and 952 (15%) from the non-diabetes group were readmitted. Readmitted patients with diabetes were older and had a higher prevalence of cardiovascular comorbidities. We didn’t observe any significant difference in the adjusted risk of 30-day mortality between the diabetes and non-diabetes groups (adjusted hazard ratio [aHR] = 0.81 [0.41–1.60]). However, diabetes was associated with a lower risk of readmission (aHR = 0.81 [0.68–0.97]). Age was the most significant predictor of all outcomes. CKD was the most significant predictor of 30-day mortality, with the risk increasing five-fold in patients with diabetes (HR = 5.58 [2.58–6.62]. Cardiovascular-related conditions were the most common causes of readmission in both groups. However, respiratory-related conditions were more prevalent in the diabetes group compared to the non-diabetes group (19.5% vs. 13%, respectively, p = 0.032).ConclusionsDiabetes does not increase in-hospital or short-term mortality in patients undergoing surgical repair for Type A aortic dissection.Graphical abstract

Incidence of 30-day readmission after total knee arthroplasty and its associated factors in Hong Kong.

Total knee arthroplasty (TKA) is one of the most commonly performed orthopaedic procedures worldwide, due to the increased prevalence of osteoarthritis associated with an ageing global population. Although many studies have focused on the causes of readmission among TKA patients within 30 days post-surgery, none have been conducted in Hong Kong. This study investigated the 30-day readmission rate, causes, and risk factors among TKA patients in Hong Kong. This retrospective review included patients who underwent TKA at a local university-affiliated hospital between 2001 and 2020. Eligible patients were identified using the Clinical Data Analysis and Reporting System and electronic patient records. Their data were analysed to determine the 30-day readmission rate, risk factors, and underlying causes. Among the 3827 TKA patients included, the male-to-female ratio was 1:2.78 (1012:2815) and the mean age (±standard deviation) was 71.11±8.82 years. Of these patients, 3.4% underwent unplanned readmission to hospitals through the Accident and Emergency Department within 30 days of TKA. The most common causes of readmission were knee pain (33.1%), knee swelling (26.2%), and gastrointestinal-related conditions (8.5%). Age ≥80 years (odds ratio [OR]=1.63; P=0.01) and hypertension (OR=2.08; P<0.001) were risk factors for readmission. Bilateral simultaneous TKA (OR=0.42; P=0.005) was associated with lower risk of readmission. The readmission rate in this study was 3.4%, comparable to rates in previous reports. Enhanced patient education and optimised perioperative pain management are needed to minimise hospital readmissions. Fall prevention, cautious painkiller prescribing, and improved nursing care are recommended to prevent readmission.

Prevalence of relevant early complications during the first 24 h on a normal ward in patients following PACU care after medium and major surgery: a monocentric retrospective observational study

PurposeEven today, it remains a challenge for healthcare professionals to decide whether a clinically stable patient who is recovering from uncomplicated medium or major surgery would benefit from a postoperative intensive care unit (ICU) admission, or whether they would be at least as adequately cared for by a few hours of monitoring in the post-operative care unit (PACU).MethodsIn this monocentric retrospective observational study, all adult patients who (Deutsche Gesellschaft für Anästhesiologie und Intensivmedizin (DGAI) in Anästh Intensivmed (50):S486–S489, 2009) underwent medium or major surgery between 1 January 1 2014 and 31 December 2018 at the Heidelberg University Surgical Center, and (Vimlati et al. in Eur J Anaesthesiol September 26(9):715–721, 2009) were monitored for 1–12 h in the PACU, and then (De Pietri et al. in World J Gastroenterol 20(9):2304–23207, 2014) transferred to a normal ward (NW) immediately thereafter were included. At the end of the PACU stay, each patient was cleared by both a surgeon and an anesthesiologist to be transferred to a NW. The first objective of this study was to determine the prevalence of relevant early complications (RECs) within the first 24 h on a normal ward. The secondary objective was to determine the prevalence of RECs in the subgroup of included patients who underwent partial pancreaticoduodenectomy.ResultsA total of 10,273 patients were included in this study. The prevalence of RECs was 0.50% (confidence interval [CI] 0.40–0.60%), with the median length of stay in the PACU before the patient’s first transfer to a NW being 285 min (interquartile range 210–360 min). In the subgroup of patients who underwent partial pancreaticoduodenectomy (n = 740), REC prevalence was 1.1% (CI = 0.55–2.12%).ConclusionBased on a medical case-by-case assessment, it is possible to select patients who after a PACU stay of only up to 12 h have a low risk of emergency readmission to an ICU within the 24 h following the transfer to the NW. Continued research will be needed to further improve transfer decisions in such low-risk subgroups.

Outpatient Follow-Up Visits to Reduce 30-Day All-Cause Readmissions for Heart Failure, COPD, Myocardial Infarction, and Stroke: A Systematic Review and Meta-Analysis.

Hospital readmissions is an important public health problem that US hospitals are responsible for reducing. One strategy for preventing readmissions is to schedule an outpatient follow-up visit before discharge. The objective of this study was to determine whether outpatient follow-up visits are an effective method to reduce 30-day all-cause readmissions for patients discharged from US hospitals with heart failure, chronic obstructive pulmonary disease (COPD), acute myocardial infarction (AMI), or stroke. We conducted a systematic review and meta-analysis to identify relevant articles published from 2013 through 2023. We searched PubMed, CINAHL, and Cochrane. Eligible studies were those that assessed the effect of postdischarge outpatient follow-up visits on 30-day all-cause readmission. We used random effect meta-analyses to generate pooled adjusted effect estimates and 95% CIs. We initially identified 2,256 articles. Of these, 32 articles underwent full-text review and 15 met inclusion criteria. Seven studies addressed heart failure, 3 COPD, 2 AMI, and 3 stroke. Ten articles provided sufficient information for meta-analysis. The pooled adjusted effect measure was 0.79 (95% CI, 0.69-0.91), indicating that outpatient follow-up visits were associated with a 21% lower risk of readmission. However, we found a high degree of between-study heterogeneity (Q = 122.78; P < .001; I2 = 92.7%). Subgroup analyses indicated that study quality, disease condition, and particularly whether a time-dependent analysis method was used, explained much of the heterogeneity. Outpatient follow-up visits are a potentially effective way to reduce 30-day all-cause readmissions for patients discharged with heart failure or stroke, but evidence of benefit was lacking for COPD and we found no studies for assessing AMI. Our results emphasize the importance of study quality.

Clinical Outcomes of Continuation and Maintenance Electroconvulsive Therapy

Large-scale evidence for the efficacy of continuation and maintenance electroconvulsive therapy (c/mECT) is lacking. To provide an exhaustive and naturalistic insight into the real-world outcomes and the cost-effectiveness of c/mECT in a large dataset. This cohort study included all patients in the Danish National Patient Registry who initiated treatment with ECT from 2003 through 2022. The data were analyzed from October 2023 to February 2024. ECT. An algorithm to identify c/mECTs in the dataset was developed: (>3 treatments with ≥7 and <90 days between adjacent treatments, occurring within a time frame of 180 days [cECT] or more [mECT] after an acute [aECT] series). The association of c/mECT with subsequent 6- to 12-month risk of hospitalization or suicidal behavior using Cox proportional hazard regression with multiple adjustments and aECT only as a reference, propensity score matching, and self-controlled case series analysis using a Poisson regression model. A cost-effectiveness analysis based on hospitalization and ECT expenses was made. A total of 19 944 individuals were treated with ECT (12 157 women [61%], 7787 men [39%]; median [IQR] age, 55 [41-70] years). Of these, 1533 individuals (7.7%) received c/mECT at any time point (1017 [5.1%] cECT only and 516 [2.6%] mECT). Compared with patients receiving aECT only, c/mECT patients more frequently experienced schizophrenia (odds ratio [OR], 2.14; 95% CI, 1.86-2.46) and schizoaffective disorder (OR, 2.42; 95% CI, 1.90-3.09) and less frequently unipolar depression (OR, 0.56; 95% CI, 0.51-0.62). In all models, c/mECT was associated with a lower rate of hospitalization after finishing aECT (eg, 6-month adjusted hazard ratio, 0.68; 95% CI, 0.60-0.78 [Cox regression]; 6-month incidence rate ratio, 0.51; 95% CI, 0.41-0.62 [Poisson regression]). There was no significant difference in the risk of suicidal behavior. Compared with the periods before the end of aECT, c/mECT was associated with a substantial reduction in total treatment costs. In a nationwide and naturalistic setting, c/mECT after aECT was infrequently used but associated with a lower risk of readmission than aECT alone. The totality of the evidence indicates that c/mECT should be considered more often to prevent relapse after successful aECT in patients whose condition does not respond sufficiently to other interventions.

Socioeconomic and Demographic Determinants of Readmission Rates in Congestive Heart Failure Patients: Insights From the Nationwide Readmissions Database.

Background Congestive heart failure (CHF) is a leading cause of hospitalizations and readmissions, placing a significant burden on the healthcare system. Identifying factors associated with readmission risk is crucial for developing targeted interventions and improving patient outcomes. This study aimed to investigate the impact of socioeconomic and demographic factors on 30-day and 90-day readmission rates in patients primarily admitted for CHF. Methods The study was carried out using a cross-sectional study design, and the data were obtained from the Nationwide Readmissions Database (NRD) from 2016 to 2020. Adult patients with a primary diagnosis of CHF were included. The primary outcomes were 30-day and 90-day all-cause readmission rates. Multivariable logistic regression was used to identify factors independently associated with readmissions, including race, ethnicity, insurance status, income level, and living arrangements. Results A total of 219,904 patients with a primary diagnosis of CHF were used in the study. The overall 30-day and 90-day readmission rates were 17.3% and 23.1%, respectively. In multivariable analysis, factors independently associated with higher 30-day readmission risk included Hispanic ethnicity (OR 1.18, 95% CI 1.03-1.35), African American race (OR 1.15, 95% CI 1.04-1.28), Medicare insurance (OR 1.24, 95% CI 1.12-1.38), and urban residence (OR 1.11, 95% CI 1.02-1.21). Higher income was associated with lower readmission risk (OR 0.87, 95% CI 0.79-0.96 for highest vs. lowest quartile). Similar patterns were observed for 90-day readmissions. Conclusion Socioeconomic and demographic factors, including race, ethnicity, insurance status, income level, and living arrangements, significantly impact 30-day and 90-day readmission rates in patients with CHF. These findings highlight the need for targeted interventions and policies that address social determinants of health and promote health equity in the management of CHF. Future research should focus on developing and evaluating culturally sensitive, community-based strategies to reduce readmissions and improve outcomes for high-risk CHF patients.

Perioperative Primary Care Utilization and Postoperative Readmission, Emergency Department Use, and Mortality in Older Surgical Patients.

Postdischarge primary care follow-up is associated with lower readmission rates after medical hospitalizations. However, the effect of primary care utilization on readmission has not been studied in surgical patients. Retrospective cohort study of Medicare beneficiaries aged 65 and older undergoing major inpatient diagnostic or therapeutic procedures (n = 3,552,906) from 2017 through 2018, examining the association between postdischarge primary care visits within 14 days of discharge (primary exposure), and Annual Wellness Visits in the year prior (secondary exposure), with 30-day unplanned readmission (primary outcome), emergency department visits, and mortality (secondary outcomes). Overall, 9.5% (n = 336,837) had postdischarge visits within 14 days, 2.9% (n = 104,571) had Annual Wellness Visits in the year preceding the procedure, 9.5% (n = 336,401) were readmitted, 9% (n = 319,054) had emergency department visits, and 0.6% (n = 22,103) of the cohort died within 30 days. Our fully adjusted propensity-matched proportional hazards Cox regression analysis showed that postdischarge visits were associated with a 5% lower risk of readmission (hazard ratio [HR], 0.95, 95% confidence interval [CI], 0.93-0.97), 43% higher risk of emergency department use (HR, 1.43, 95% CI, 1.40-1.46) and no difference in mortality risk (HR, 0.98, 95% CI, 0.90-1.06), compared with not having a visit within 14 days of discharge. In a separate set of regression models, Annual Wellness Visits were associated with a 9% lower risk of readmission (HR, 0.91, 95% CI, 0.88-0.95), 45% higher risk of emergency department utilization (HR, 1.45, 95% CI, 1.40-1.49) and an 18% lower mortality risk (HR, 0.82, 95% CI, 0.75-0.89) compared with no Annual Wellness Visit in the year before the procedure. Both postdischarge visits and the Medicare Annual Wellness Visit appear to be extremely underutilized among the older surgical population. In those patients who do utilize primary care, compared with propensity-matched patients who do not, our study suggests primary care use is associated with modestly lower readmission rates. Prospective studies are needed to determine whether targeted primary care involvement can reduce readmission.

Similar Recovery Rate for Patients Aged between 50 and 89 Years That Go Home on the Surgery Day and Self-Administer Their Rehabilitation after Kinematically Aligned Total Knee Arthroplasty.

for kinematic alignment (KA) total knee arthroplasty (TKA), it was unknown whether 'the pace of recovery' at six weeks was different for patients with ages ranging between 50-59, 60-69, 70-79, and 80-89 years who were discharged on the surgery day and self-administered their rehabilitation. a single surgeon treated 206 consecutive patients with a KA-designed femoral component and an insert with a medial ball-in-socket, lateral flat articulation, and PCL retention. Each filled out preoperative and six-week Oxford Knee Score (OKS), Knee Society Score (KSS), Knee Function Score (KFS), and Knee Injury and Osteoarthritis Outcome Score for Joint Replacement (KOOS, JR) questionnaires. The six-week minus preoperative value indicated improvement. between age cohorts, the improvement was not different (p = 0.2319 to 0.9888). The mean improvement/six-week postoperative value was 6°/-2° for knee extension, 0°/119° for knee flexion, 7/31 for the OKS, 39/96 for the KSS, 7/64 for the KFS, and 13/62 for the KOOS. The 30-day hospital readmission rate was 1%. surgeons who perform KA TKA can counsel 50 to 89-year-old patients that they can be safely discharged home on the surgery day with a low risk of readmission and can achieve better function at six weeks than preoperatively when performing exercises without a physical therapist.

The Utilization of Early Outpatient Care for Infants Following NICU Discharge among a National Sample.

Outpatient care following discharge from a neonatal intensive care unit (NICU) is critical for streamlined transfer of care. Yet, information is lacking about the characteristics of early outpatient care. The objective of this secondary data analysis is to describe outpatient encounters (OPEs) within the first three months following the discharge of commercially insured infants admitted to NICUs in the MarketScan Research Database nationally from 2015 to 2017. Data were analyzed using descriptive statistics and logistic regression. A total of 22,214 NICU survivors were included, of whom half had an OPE within two days following discharge (quartiles 1, 3) and 90% within five days. The median number of OPEs in the first three months was five (quartiles 4, 7). A majority of first physician visits were with pediatricians (81.5%). A minority of infants with chronic conditions saw subspecialists. Term infants with delayed care had a lower risk of readmission. Spending was higher for preterm infants and those with chronic conditions. We conclude that most patients are seen shortly after discharge and by pediatricians; however, there is room for improvement. Frequent encounters and spending afflict high-risk groups with chronic conditions. Future work should examine the associations of early outpatient care with social determinants of health and other outcomes such as immunizations.

Hospital readmissions after robotic hepatectomy for neoplastic disease: Analysis of risk factors, survival, and economical impact. A logistical regression and propensity score matched study

BackgroundAs the first comprehensive investigation into hospital readmissions following robotic hepatectomy for neoplastic disease, this study aims to fill a critical knowledge gap by evaluating risk factors associated with readmission and their impact on survival and the financial burden. MethodsThe study analyzed a database of robotic hepatectomy patients, comparing readmitted and non-readmitted individuals post-operatively using 1:1 propensity score matching. Statistical methods included Chi-square, Mann-Whitney U, T-test, binomial logistic regression, and Kaplan-Meier analysis. ResultsAmong 244 patients, 44 were readmitted within 90 days. Risk factors included hypertension (p ​= ​0.01), increased Child-Pugh score (p ​< ​0.01), and R1 margin status (p ​= ​0.05). Neoadjuvant chemotherapy correlated with lower readmission risk (p ​= ​0.045). Readmissions didn't significantly impact five-year survival (p ​= ​0.42) but increased fixed indirect hospital costs (p ​< ​0.01). ConclusionsReadmission post-robotic hepatectomy correlates with hypertension, higher Child-Pugh scores, and R1 margins. The use of neoadjuvant chemotherapy was associated with a lower admission rate due to less diffuse liver disease in these patients. While not affecting survival, readmissions elevate healthcare costs.

Stroke Subtype and Risk of Subsequent Hospitalization: The Atherosclerosis Risk in Communities Study

Risk of readmission after stroke differs by stroke (sub)type and etiology, with higher risks reported for hemorrhagic stroke and cardioembolic stroke. We examined the risk and cause of first readmission by stroke subtype over the years post incident stroke. Atherosclerosis Risk in Communities (ARIC) study participants (n = 1,412) with first-ever stroke were followed up for all-cause readmission after incident stroke. Risk of first readmission was examined by stroke subtypes (cardioembolic, thrombotic/lacunar, and hemorrhagic [intracerebral and subarachnoid]) using Cox and Fine-Gray proportional hazards models, adjusting for sociodemographic and cardiometabolic risk factors. Among 1,412 participants (mean [SD] age 72.4 [9.3] years, 52.1% women, 35.3% Black), 1,143 hospitalizations occurred over 41,849 person-months. Overall, 81% of participants were hospitalized over a maximum of 26.6 years of follow-up (83% of participants with thrombotic/lacunar stroke, 77% of participants with cardioembolic stroke, and 78% of participants with hemorrhagic stroke). Primary cardiovascular and cerebrovascular diagnoses were reported for half of readmissions. Over the entire follow-up period, compared with cardioembolic stroke, readmission risk was lower for thrombotic/lacunar stroke (hazard ratio [HR] 0.82, 95% CI 0.71-0.95) and hemorrhagic stroke (HR 0.74, 95% CI 0.58-0.93) in adjusted Cox proportional hazards models. By contrast, there was no statistically significant difference among subtypes when adjusting for atrial fibrillation and competing risk of death. Compared with cardioembolic stroke, thrombotic/lacunar stroke was associated with lower readmission risk within 1 month (HR 0.66, 95% CI 0.46-0.93) and during 1 month-1 year (HR 0.78, 95% CI 0.62-0.97), and hemorrhagic stroke was associated with lower risk during 1 month-1 year (HR 0.60, 95% CI 0.41-0.87). There was no significant difference between subtypes in readmission risk during later periods. Over 26 years of follow-up, 81% of stroke participants experienced a readmission. Cardiovascular and cerebrovascular diagnoses at readmission were most common across stroke subtypes. Though cardioembolic stroke has previously been reported to confer higher risk of readmission, in this study, the readmission risk was not statistically significantly different between stroke subtypes or over different periods when accounting for the competing risk of death.

A data-informed timeline for hospital discharge with a reasonably low risk of unplanned readmission after open and minimally invasive liver resections.

Postoperative complications following liver resection remain high, ranging from 20% to 50%. Patients are hospitalized for a certain period of time following liver resection because of the risk of postoperative complications. We hypothesized that the risk of complications decreases with each complication-free postoperative day after open and minimally invasive liver resections and can be stratified using a recently reported three-level complexity classification. Patients undergoing first liver resection without concomitant other organ resections between 2006 and 2019 were included. The three-level complexity classification was used to categorize liver resection procedures into grades I-III. We assessed the rate of cumulative postoperative complications from the time of liver resection to the time of post-hepatectomy complications (≥ Clavien-Dindo grade II). Of the 911 patients included, 200 underwent resection of grade I procedures, 185 underwent resection of grade II procedures, and 526 underwent resection of grade III procedures. The risks of post-hepatectomy complications changed over time and were stratified by surgical complexity. For patients at the time of liver resection, the estimated 30-day complication rate was 21.8% for open grade I resection, 26.7% for open grade II resection, 38.4% for open grade III resection, 8.6% for laparoscopic grade I resection, and 12.5% for laparoscopic grade II resection. For patients without complications at 7 days, the estimated 30-day complication rate decreased to 2.1% for open grade I, 9.2% for open grade II, 17.6% for open grade III, 1.3% for laparoscopic grade I, and 4.5% for laparascopic grade II. The post-hepatectomy complication risks were stratified by surgical complexity, liver resection approach, and the period without complication after liver resection.

The successful and safe conversion of joint arthroplasty to same-day surgery: A necessity after the COVID-19 pandemic.

A key strategy to address system pressures on hip and knee arthroplasty through the COVID-19 pandemic has been to shift procedures to the outpatient setting. This was a retrospective cohort and case-control study. Using the Discharge Abstract Database and the National Ambulatory Care Reporting System databases, we estimated the use of outpatient hip and knee arthroplasty in Ontario, Canada. After propensity-score matching, we estimated rates of 90-day readmission, 90-day emergency department (ED) visit, 1-year mortality, and 1-year infection or revision. 204,066 elective hip and 341,678 elective knee arthroplasties were performed from 2010-2022. Annual volumes of hip and knee arthroplasties increased steadily until 2020. Following the start of the COVID-19 pandemic (March 1, 2020) through December 31, 2022 there were 7,561 (95% CI 5,435 to 9,688) fewer hip and 20,777 (95% CI 17,382 to 24,172) fewer knee replacements performed than expected. Outpatient arthroplasties increased as a share of all surgeries from 1% pre-pandemic to 39% (hip) and 36% (knee) by 2022. Among inpatient arthroplasties, the tendency to discharge to home did not change since the start of the pandemic. During the COVID-19 era, patients receiving arthroplasty in the outpatient setting had a similar or lower risk of readmission than matched patients receiving inpatient arthroplasty [hip: RR 0.65 (0.56-0.76); knee: RR 0.86 (0.76-0.97)]; ED visits [hip: RR 0.78 (0.73-0.83); knee: RR 0.92 (0.88-0.96)]; and mortality, infection, or revision [hip: RR 0.65 (0.45-0.93); knee: 0.90 (0.64-1.26)]. Following the start of the COVID-19 pandemic in Ontario, the volume of outpatient hip and knee arthroplasties performed increased despite a reduction in overall arthroplasty volumes. This shift in surgical volumes from the inpatient to outpatient setting coincided with pressures on hospitals to retain inpatient bed capacity. Patients receiving arthroplasty in the outpatient setting had relatively similar outcomes to those receiving inpatient surgery after matching on known sociodemographic and clinical characteristics.

Abstract 12237: All-Cause and Cause-Specific 30-day Readmission After Left Ventricular Assist Device Implantation: Comparing the HeartMate 3 vs Pre-HeartMate 3 Eras

Introduction: In recent years, the HeartMate 3 (HM3) has become the most commonly implanted left ventricular assist device (LVAD) for patients with end-stage HF in the United States. We assessed 30-day readmission rates and leading causes of readmission for patients newly receiving an LVAD in the pre-HM3 era compared to the HM3 era. Methods: Using the Nationwide Readmission Database (NRD), all adult admissions (age ≥18) with LVAD implantation from October 2015 - December 2020 were identified. Admissions were excluded if the patient had: died while inpatient, missing data for age, sex, or mortality, transferred to another acute care facility or December admission. Multivariable Cox regression analysis with all-cause and cause-specific readmission within 30 days as the ‘failure event’ and time from index hospitalization discharge to failure event as the ‘time to failure event’ was analyzed. Based on the timing of initial FDA approval of HM3, the study period was divided into two eras: 2015-2017 was defined as the pre-HM3 era and 2019-2020 as the HM3 era. The year 2018 was deemed the transition period and excluded from the analysis. Results: Among 13,867 hospitalizations for LVAD implantations, 57.6% of index hospitalizations were during the pre-HM3 era (mean age= 56 years, men= 77.2%), and 42.4% were during the HM3 era (mean age= 56 years, men= 76.6%). Hazards of 30-day all-cause readmissions were similar in the two eras (Figure 1 Panel A) . LVAD implantation in the HM3 era was associated with lower risks of 30-day readmission with a gastrointestinal (GI) bleed or pump thrombosis and a higher risk of 30-day readmission with an acute kidney injury (AKI) compared to the pre-HM3 era ( Figure 1 Panel B). Conclusion: There was no significant difference in risk of 30-day all-cause readmission after LVAD implantation in the HM 3 and Pre-HM 3 eras. However, implant in the HM3 era was associated with lower risk of readmission with GI bleed and pump thrombosis and higher risk of readmission with AKI.

Abstract 18473: Role of Linguistic Acculturation and Physical Activity With Risk of 1 Year Hospital Readmission After Suspected Acute Coronary Syndrome

Background: Disparities in acute coronary syndrome (ACS) outcomes after hospital care exist beyond racial and ethnic factors. In particular, low linguistic acculturation (LA) may impact care and lead to poorer prognosis. Few studies have examined LA’s impact on outcome disparities post-hospitalization and identified modifiable behaviors, such as physical activity (PA) engagement, that can mitigate risk. Aim: To evaluate the association of LA with 1-year hospital readmission risk among patients evaluated for ACS and examine PA as an effect modifier. Methods: Patients evaluated for ACS in the emergency unit (n=609, 47.8% female, 58.0% Hispanic, 63±12yrs) were studied. LA was classified into three levels (low, intermediate, high) based on patient’s self-reported native and preferred languages and English fluency. Continuous total PA was objectively assessed 30 days post-discharge via a GENEActiv accelerometer worn on the non-dominant wrist. One-year all-cause hospital readmissions were ascertained via hospital medical record searches. Cox regression models used high LA as referent group. Results: Over 1-year follow-up, 264 (44.0%) patients had a subsequent hospital admission. Low LA was associated with increased 1-year readmission risk after adjusting for demographic factors, comorbidities, disease severity, and PA indicators (intermediate HR=1.44; 95% CI: 0.91-2.28; low HR=1.63; 95% CI: 1.05-2.55; p-trend=0.035). PA moderated this association (p-interaction=0.003). Low LA was only associated with greater risk of 1-year readmission among those with low PA levels (below median of 158 min/day; HR=1.88; 95% CI: 1.00, 2.79). Among those with high PA, the association between low LA and risk of readmission was attenuated and not statistically significant (HR=1.46; 95% CI: 0.75, 2.83). Conclusion: Among a diverse cohort of patients with suspected ACS, LA was associated with reduced risk of 1-year hospital readmission. PA significantly moderated this relationship, with higher volumes of PA attenuating the positive association between low LA and increased risk of 1-year hospital readmission. These findings implicate low LA as a potential risk factor for readmission post-ACS and suggest increased engagement in PA can help mitigate this risk.

Association between hospital admission either directly or via the emergency department, and readmission rates at 30days in older adults in two rural hospitals: a retrospective cohort study.

Older patients are frequently re-admitted to the hospital after attending the emergency department (ED). We investigated whether direct admission to the hospital was associated with a lower risk of readmission at 30days compared to admission via the ED, in patients aged ≥ 75years. Retrospective multicenter cohort study from 01/01/2018 to 31/12/2019, including patients aged ≥ 75years from two hospitals. Patients admitted directly were matched 1:1 with patients admitted via the ED for center, age category, sex, major diagnosis category, type of stay (medical/surgical), and severity. We compared readmission at 30days (primary outcome) and length of stay (secondary outcome) between groups. A total of 1486 matched patients with an available outcome measure were included for analysis. We observed no significant difference in 30-day readmission rate between those admitted directly (102/778, 13.1%) and those admitted via the ED (87/708, 12.3%, p = 0.63). There was a significant difference in length of stay between both groups: median 5days [Q1-Q3: 2-8] vs 6days [2-11] for direct and ED admissions, respectively (effect size: 0.11, p < 0.001). By multivariate analysis, only moderate to severe denutrition was associated with the risk of readmission at 30days (Odds Ratio 2.133, 95% Confidence Interval 1.309-3.475). The mode of entry to the hospital of patients aged 75years and older was not associated with the risk of readmission at 30days. However, those admitted directly had a significantly shorter length of stay than those admitted via the ED.

No Difference in 30-day Mortality Between Patients Undergoing Bilateral Simultaneous Total Knee Arthroplasty With Technology Assistance Compared to Conventional Instrumentation.

Background: Bilateral simultaneous total knee arthroplasty (BSTKA) has decreased in frequency due to concerns about higher rates of early mortality and complications than unilateral or staged surgeries. Purpose: We sought to evaluate whether technology assistance (encompassing robotics and computer assistance) decreases early mortality following BSTKA. Methods: We conducted a retrospective cohort study using a national all-payer claims database. Patients who underwent BSTKA from October 2015 to December 2020 were identified. Univariate and multivariable analyses were conducted to compare outcomes in patients who underwent BSTKA with technology assistance compared to conventional instrumentation. The primary outcome was 30-day postoperative mortality. Secondary outcomes were respiratory failure and fat embolism. A post-hoc analysis was performed to evaluate length of stay, readmission, and other medical complications. Results: A total of 14,870 patients who underwent BSTKA were included in this study. Of these, 860 patients underwent technology-assisted BSTKA, and 14,010 patients underwent BSTKA without technology assistance. After a multivariable analysis, patients who underwent technology-assisted BSTKA had equivalent odds of 30-day mortality compared to those who underwent BSTKA without technology assistance. Technology assistance was not protective against the development of acute respiratory failure or fat embolism. Conclusion: This retrospective cohort study found no differences in the rates of 30-day mortality, respiratory failure, or fat embolism after technology-assisted BSTKA compared to conventional BSTKA. On the post-hoc analysis, technology use was associated with a decreased length of stay, lower readmission risk, and decreased rates of deep vein thrombosis, pulmonary embolism, and blood transfusion.

Paediatric negative appendicectomy rates at a regional Western Australian Centre: a five-year cohort study.

In acute appendicitis, decision-making around operative intervention for paediatric patients differs from adults due to a higher weight placed on clinical assessment and reduced rates of cross-sectional imaging. In regional settings, non-paediatric emergency doctors, general surgeons, and radiologists usually assess and manage this patient group. Differences have been observed in paediatric negative appendicectomy rates between general and paediatric centres. A retrospective cohort study was performed, identifying paediatric patients undergoing emergency appendicectomy at the Southwest Health Campus (Bunbury, Western Australia) from 2017 to 2021. The primary outcome measure was histopathology confirming the absence of transmural inflammation of the appendix. In addition, clinical, biochemical and radiological data were collected to identify predictors of negative appendicectomy (NA). Secondary outcome measures were hospital length-of-stay and post-operative complication rates. Four hundred and twenty-one patients were identified, of which 44.9% had a negative appendicectomy. Statistically significant associations between female gender, white cell count less than 10 × 109 , neutrophil ratio less than 75%, low CRP and NA were observed. NA was not associated with a lower risk of re-admission or complications compared with appendicectomy for appendicitis. Our centre's NA rate is higher than that observed in the literature at both non-paediatric and paediatric surgical centres. NA has similar morbidity risk to appendicectomy for uncomplicated appendicitis and offers a timely reminder that diagnostic laparoscopy in children is not benign.

The Impact of Nurse Practitioner Care and Accountable Care Organization Assignment on Skilled Nursing Services and Hospital Readmissions.

Accountable care organizations (ACOs) and the employment of nurse practitioners (NP) in place of physicians are strategies that aim to reduce the cost and improve the quality of routine care delivered in skilled nursing facilities (SNF). The recent expansion of ACOs and nurse practitioners into SNF settings in the United States may be associated with improved health outcomes for patients. To determine the relationship between ACO attribution and NP care delivery during SNF visits and the relationship between NP care delivery during SNF visits and unplanned hospital readmissions. We obtained a sample of 527,329 fee-for-service Medicare beneficiaries with 1 or more SNF stays between 2012 and 2017. We used logistic regression to measure the association between patient ACO attribution and evaluation and management care delivered by NPs in addition to the relationship between evaluation and management services delivered by NPs and hospital readmissions. ACO beneficiaries were 1.26% points more likely to receive 1 or more E&M services delivered by an NP during their SNF visits [Marginal Effect (ME): 0.0126; 95% CI: (0.009, 0.0160)]. ACO-attributed beneficiaries receiving most of their E&M services from NPs during their SNF visits were at a lower risk of readmission than ACO-attributed beneficiaries receiving no NP E&M care (5.9% vs. 7.1%; P <0.001). Greater participation by the NPs in care delivery in SNFs was associated with a reduced risk of patient readmission to hospitals. ACOs attributed beneficiaries were more likely to obtain the benefits of greater nurse practitioner involvement in their care.

Characterizing the relative frequency of clinician engagement with structured social determinants of health data.

Electronic health records (EHRs) are increasingly used to capture social determinants of health (SDH) data, though there are few published studies of clinicians' engagement with captured data and whether engagement influences health and healthcare utilization. We compared the relative frequency of clinician engagement with discrete SDH data to the frequency of engagement with other common types of medical history information using data from inpatient hospitalizations. We created measures of data engagement capturing instances of data documentation (data added/updated) or review (review of data that were previously documented) during a hospitalization. We applied these measures to four domains of EHR data, (medical, family, behavioral, and SDH) and explored associations between data engagement and hospital readmission risk. SDH data engagement was associated with lower readmission risk. Yet, there were lower levels of SDH data engagement (8.37% of hospitalizations) than medical (12.48%), behavioral (17.77%), and family (14.42%) history data engagement. In hospitalizations where data were available from prior hospitalizations/outpatient encounters, a larger proportion of hospitalizations had SDH data engagement than other domains (72.60%). The goal of SDH data collection is to drive interventions to reduce social risk. Data on when and how clinical teams engage with SDH data should be used to inform informatics initiatives to address health and healthcare disparities. Overall levels of SDH data engagement were lower than those of common medical, behavioral, and family history data, suggesting opportunities to enhance clinician SDH data engagement to support social services referrals and quality measurement efforts.