Non-tertiary Hospital Research Articles

Cardiac magnetic resonance in MINOCA patients: a non-tertiary hospital experience

Abstract Background Cardiac magnetic resonance (CMR) is a key tool in the diagnostic process of myocardial infarction with non-obstructive coronary arteries (MINOCA), impacting patient management and prognosis. Its use in non-tertiary hospitals is often constrained mainly by accessibility. Thus, the aim of this study was thoroughly evaluate CMR application in this context to optimize the process. Methods 136 MINOCA patients who were admitted to our hospital between 2016 and January 2024 were analyzed. Each MINOCA patient was reviewed by experts to align with the diagnosis criteria outlined in the 2020 ESC Guidelines and the American Heart Association position paper, which recommended CMR for MINOCA patient’s evaluation. To assess the factors associated with normal-CMR, a logistic regression analysis was performed. In a first step, some factors were detected, showing a trend in the association. In a second step, a backward elimination procedure was used, excluding factors with p>0.1. Results CMR was performed in 65 MINOCA patients (48% of the cohort), with a mean age of 59±15 years old, 35 of them were males (54% of total patients). During the follow-up, there were 4 deaths (6%) and 4 readmissions (6%). Out of the total 65 patients, the CMR diagnosis was myocardial infarction (MI) in 14 (21.5%) and myocarditis in 16 (24.6%), and was normal in 35 (53.9%). Therefore, CMR provided diagnostic information in 46% of the cases. It was noted that a normal CMR was associated with female gender, (OR 2.7, 95% CI 0.96-7.34, p=0.057), hypertension (OR 2.25, 95% CI 0.81-6.22, p=0.11), absence of segmental abnormalities in echocardiography (OR 0.14, 95% CI 0.035-0566, p=0.06) and lower high-sensitivity Troponin T (OR 0.79, 95% CI: 0.66-0.95, p=0.001). In the second step, only segmental abnormalities (OR 0.2, 95%CI 0.04-1.09, p=0.063) and troponin (OR 0.31, 95%CI 0.10-0.99, p=0.048) remained included. Additionally, the Youden Index was determined to obtain the threshold for troponin, resulting a value of 606 nG/mL, area under ROC curve (AUC) = 0.784 (figure). Conclusions - CMR was performed in 48% of the MINOCA patients, reflecting the limitation for its use in routine clinical practice. Furthermore, it was useful in 46% of those patients. - The main factors associated with normal CMR were absence of segmental echocardiography abnormalities and reduced troponin levels. - A troponin cutoff point of 606 ng/mL identified patients with a normal CMR (AUC=0.784).Figure 1.CMR in MINOCA patientsFigure 2.Area under ROC curve = 0.784

Cardiogenic Shock Challenges and Priorities: A Clinician Survey

Cardiogenic shock (CS) is common and survival outcomes have not substantially improved. Australia's geography presents unique challenges in the management of CS. The challenges and research priorities for clinicians pertaining to CS identification and management have yet to be described. We used an exploratory sequential mixed methods design. Semi-structured interviews were conducted with 10 clinicians (medical and nursing) to identify themes for quantitative evaluation. A total of 143 clinicians undertook quantitative evaluation through online survey. The interviews and surveys addressed current understanding of CS, status of cardiogenic systems and future research priorities. There were 143 respondents: 16 (11%) emergency, cardiology 22 (16%), 37 (26%) intensive care, 54 (38%) nursing. In total, 107 (75%) believe CS is under-recognised. Thirteen (13; 9%) of respondents indicated their hospital had existing CS teams, all from metropolitan hospitals, and 40% thought additional access to mechanical circulatory support devices was required. Five (5; 11%) non-tertiary hospital respondents had not experienced a delay in transfer of a patient in CS. All respondents felt additional research, particularly into the management of CS, was required. Clinicians report that CS is under-recognised and further research into CS management is required. Access to specialised CS services is still an issue and CS protocolised pathways may be of value.

Genomic testing and targeted therapy of non-small cell lung cancer in China: a nationwide survey of physicians and clinical pathologists.

Genomic diagnostic testing is necessary to guide optimal treatment for non-small cell lung cancer (NSCLC) patients. The proportion of NSCLC patients whose treatment was selected based on genomic testing is still unknown in many countries or needs further improvement. This survey aimed to assess perception of genomic testing and targeted therapy for NSCLC in clinical pathologists and physicians across China. The web-based survey was conducted with 150 clinical pathologists and 450 physicians from oncology, respiratory and thoracic surgery departments from May to September 2020, across 135 cities in China. The participants had >5 years of clinical experience in genomic testing, diagnosis or treatment of NSCLC. Clinical pathologists reported capability of epidermal growth factor receptor (EGFR), anaplastic lymphoma kinase (ALK), and ROS proto-oncogene 1 (ROS-1) testing as 95.3%, 94.7%, and 84.7%, respectively, but only 81.9%, 75.5%, and 65.6% of physicians believed that the pathology department of the hospital is capable of performing the testing. The proportions of sending out specimens for testing were 21.0% and 49.7% as reported from clinical pathologists and physicians, respectively. Testing for EGFR mutation was recommended by physicians most often, followed by ALK and ROS-1 rearrangement. As first-line treatment, among the newly diagnosed patients with EGFR mutation, 77% received tyrosine kinase inhibitors (TKIs) therapy (49% treated with gefitinib); among patients with ALK rearrangement, 71% received TKI (64% treated with crizotinib); among patients with ROS-1 fusion, 65% received TKI (88% treated with crizotinib). The improvement of the non-tertiary hospital pathology departments' detection capabilities and the physicians' awareness are needed for enhancing the rate of genomic testing and targeted therapy in NSCLC patients in China.

Impact of Direct or Indirect Transfer on Acute Type A Aortic Dissection in The Tokai Region of Japan

Objectives To evaluate the outcomes of direct versus indirect transfer in treating acute type A aortic dissection (ATAAD) and assess the outcomes of patients transferred from tertiary versus non-tertiary hospitals. Materials and Methods This study included 98 patients with ATAAD who underwent emergency surgery at our hospital from August 2015 to July 2023. We compared patients transferred directly to our hospital for emergency surgery with those transferred to other hospitals before ours. Results Patients transferred from other hospitals had a significantly longer time from disease onset to arrival at the hospital and arrival in the operating room. However, they had a good preoperative condition, shorter postoperative hospital stay, lower major adverse cardiac or cerebrovascular events, and lower late mortality. Preoperative patient pathology or postoperative course among them showed no significant differences, regardless of whether the patient was transferred from a non-tertiary hospital. Conclusions Patients transferred from other hospitals had better outcomes, most likely because they were relatively low-risk; high-risk cases might not have been efficiently transferred. The size of the referring hospital was not associated with the prognosis. Developing a network system in the Tokai region to efficiently transfer high-risk patients with acute aortic syndrome is warranted.

The role of cardiac magnetic resonance imaging in patients with MINOCA in daily clinical practice

Abstract Background In patients with ‘myocardial infarction with non-obstructive coronary arteries’ (MINOCA), the underlying cause is not always known. Cardiac magnetic resonance imaging (CMRI) is recommended as a key investigation in MINOCA because it can exclude myocarditis, takotsubo syndrome, and cardiomyopathies, as well as provide imaging confirmation of AMI. However, CMRI is not widely available. The aim of our study was to analyze the role of CMRI in patients with MINOCA in routine clinical practice in a non-tertiary hospital of the Spanish national health system. Methods We analyzed 62 consecutive MINOCA patients admitted to our University Hospital from 2019 to January 2023. The database were revised by a group of experts in order to adequate MINOCA to 2020 ESC Guidelines definition and the American Heart Association position paper. The tako-tsubo syndrome was excluded. According to these guidelines CMRI is recommended in the evaluation of MINOCA patients. Results Only in 32 patients, corresponding to 52% of the patients with MINOCA, the CMRI was performed because of the limited availability of this test in our health System. Of the CMRI performed, 46% provided the underlying mechanism of the MINOCA: myocarditis (21%) or confirmation of AMI (25%). The other CMRI were normal (54%) (figure). Although patients with normal CMRI had a significantly lower mean TropT hs (236.02 vs 794.02 ng/L, p=0.03), troponin levels were not able to discriminate patients with normal CMRI. Thus up to 33% of patients with pathological CMRI had a TropThs level less than 244 ng/L (which was the median of the series). There were no significant differences in other biomarkers (PCR, CK) or clinical or analytical parameters. There were also no differences in prognosis at follow-up (death or readmissions) between patients with normal CMRI and patients with diagnostic CMRI. Conclusions 1) In routine clinical practice, only 52% of patients with MINOCA underwent CMRI, 2) Of the patients who underwent CMRI, it provided the underlying mechanism of the MINOCA in 46% of them, 3) Although the TropThs level was lower in patients with normal CMRI, the troponin level was not useful to select the patients that would benefit most from such a test.CMRI in MINOCA patients

Successful Extracorporeal Membrane Oxygenation Implementation at a Non-tertiary Medical Center: A Single-Center Experience.

The inexperience and limited resources at non-tertiary medical centers pose unique challenges to the successful development of an extracorporeal membrane oxygenation (ECMO) program. The current literature does not provide a detailed framework that addresses the unique challenges encountered at these facilities. We outline a proactive approach to developing an ECMO program and provide a retrospective analysis of patient demographics, clinical characteristics, ECMO configuration, duration of ECMO support, major adverse events, and survival to hospital discharge. Data are summarized using mean, median, percentages, standard deviation, and interquartile range. Eleven patients were cannulated between December 2021 to March 2023. The age range of the patients who received ECMO varied significantly, with the youngest being 25 years old and the oldest being 69 years old. The mean age was 38 years old, with a standard deviation of 15.9. Hypertension was the most common co-morbid condition occurring in 64% (n=7) of patients. Only one patient had a major adverse event, and survival to hospital discharge was 73% (n=8). Of the patients that survived hospital discharge, seven patients were discharged home and one to a rehabilitation facility. These findings suggest that the safe implementation of an ECMO program at a non-tertiary hospital with inexperienced staff and limited resources is feasible. Adherence to established guidelines is essential for new programs, especially with regard to patient selection. Furthermore, a proactive approach that emphasizes high-yield training techniques, patient management protocols, and strategies that mitigate adverse events may be the key to achieving survival rates that exceed those of larger academic hospitals.

Time to interval cholecystectomy and associated outcomes in a population aged 50 and above with mild gallstone pancreatitis

BackgroundCholecystectomy on index admission for mild gallstone pancreatitis (GSP) is recommended, although not always feasible. This study examined rates and outcomes of people aged ≥ 50 years who underwent interval (delayed) cholecystectomy at increasing time points.MethodsHospitalisation and death data were linked for individuals aged ≥ 50 years admitted to hospital in New South Wales, Australia with mild GSP between 2008–2018. Primary outcome was interval cholecystectomy timing. Secondary outcomes included mortality, emergency readmission for gallstone-related disease (GSRD) (28 and 180-day), and length of stay (LOS) (index admission and total six-month GSRD).Results3,003 patients underwent interval cholecystectomy: 861 (28.6%) at 1–30, 1,221 (40.7%) at 31–90 and 921 (30.7%) at 91–365 days from index admission. There was no difference in 365-day mortality between groups. Longer delay to cholecystectomy was associated with increased 180-day emergency GSRD readmission (17.5% vs 15.8% vs 19.9%, p < 0.001) and total six-month LOS (5.9 vs 8.4 vs 8.3, p < 0.001). Endoscopic retrograde cholangiopancreatography (ERCP) was increasingly required with cholecystectomy delay (14.5% vs 16.9% vs 20.4%, p < 0.001), as were open cholecystectomy procedures (4.8% vs 7.6% vs 11.3%, p < 0.001). Extended delay was associated with patients of lower socioeconomic status, regional/rural backgrounds or who presented to a low volume or non-tertiary hospital (p < 0.001).ConclusionDelay to interval cholecystectomy results in increased rates of emergency readmission, overall LOS, risks of conversion to open surgery and need for ERCP. Index admission cholecystectomy is still recommended, however when not possible, interval cholecystectomy should be performed within 30 days to minimise patient risk and healthcare burden.

Validating the ORACollect for the detection of cytomegalovirus

Targeted screening for Cytomegalovirus (CMV) in Deaf and Hard of Hearing (DHH) children is now internationally recommended. With newborn genomic screening for DHH children a future possibility, the commercially-available human genomic DNA collection kit (ORACollect, Oragene OCR-100) could enable one single sample to screen for CMV and genetic causes of deafness at scale with minimal additional costs. Our pilot study validated ORACollect against Copan FLOQswabs® (gold standard clinical procedure) for detecting CMV using 15 sets of saliva samples from 14 infants/children, comparing CMV PCR results using different testing protocols. ORACollect stored at room temperature had high sensitivity (up to 89%), specificity (up to 80%) and percent agreement (up to 86%) in detecting CMV DNA compared to FLOQswabs®. This suggests that ORACollect is an appropriate alternative to FLOQswabs® for collecting viral CMV DNA for PCR testing, independent of the DNA extraction approach. This could be revolutionary in facilitating dual genomic and viral screening in newborns and would enable CMV screening in non-tertiary hospital settings where laboratory facilities are not available.

Transfer status may not be associated with worse outcomes in elderly trauma patients

PurposeTo compare outcomes of elderly patients who arrive directly to a lead trauma centre to those who are transferred from a peripheral hospital. MethodsThis study used a retrospective cohort design and data obtained from the local trauma registry. The study population was patients 65 years and older who presented with an Injury Severity Score (ISS) of 12 or greater, or for whom the trauma team was activated, over a 10-year period. Patients were excluded from the study if they arrived direct from the scene and died within 3 hours of arrival, they were found to have no injuries, or they were directly admitted more than 2 days from the time of injury. Following the use of multiple imputation, multivariable logistic regression analysis was used to evaluate the relationship between in-hospital mortality and directness of transport, while adjusting for potentially confounding variables. ResultsOf the 1619 patients included in the analyses over half (54.2%) were transported directly from the scene of injury to the lead trauma hospital (LTH). The remaining 45.8% initially presented to a non-tertiary hospital and were later transferred to the LTH. Crude mortality was 18.7% in the direct group and 14.0% in the transfer group (p = 0.015). The unadjusted odds of death for patients arriving to LTH by referral was 0.71 (95% confidence interval, 0.54, 0.93), compared to patients arriving to the LTH directly. After adjustment for age, ISS, presence of severe head injury, Charlson Comorbidity Index, shock, initial GCS, and ICU admission from the emergency department, the mortality risk did not differ significantly for transferred patients compared to those arriving directly (OR = 0.77 (95% confidence interval, 0.54, 1.09). ConclusionThere was no significant difference in in-hospital mortality between elderly patients transported directly to the trauma centre and those who were transferred from peripheral hospitals.

Indications for extracorporeal membrane oxygenation in coronavirus disease 2019: is the Berlin definition still adequate to adjust therapeutic interventions? A case report

Indications for extracorporeal membrane oxygenation in coronavirus disease 2019: is the Berlin definition still adequate to adjust therapeutic interventions? A case report

Early versus late diagnosis of critical congenital heart disease at Sanglah Hospital Denpasar, Bali

Background: Critical congenital heart disease (CCHD) remains significant clinical and public health challenge. Risk of morbidity and mortality in CCHD increases when there is a delay in diagnosis and referral to a tertiary center with expertise in treating these patients. In the last few years, pulse oximetry screening for CCHD in newborns has been added to the list of recommended uniform screening panels and advocated by several health-care authorities. Early detection of CCHD by using pulse oxymetry was recommended by American Academy of Pediatrics (AAP), the American Heart Association, and the American College of Cardiology to improve early identification of infants with CCHD. Objective: To describe early versus late diagnosis of critical congenital heart disease (CCHD) at single tertiary center. Methods: A retrospective observational study was conducted in Sanglah Hospital, Bali. Data collected from medical records. Early diagnosis defined as diagnosis which made during prenatal examination or before birth hospital dischare. Late diagnosis defined as diagnosis which made after birth hospital discharge, after 3 days of birth, or even at death. Diagnosis of CCHD was retrieved based on echocardiography examination. Results: From June 2016 to February2020 we found 86 CCHD cases which were tetralogy of Fallot (41 cases), pulmonary atresia (15 cases), transposition of great arteries (14 cases), total anomalous pulmonary venous return (4 cases), tricuspid atresia (3 cases), truncus arteriosus (3 cases), and hypoplastic left heart syndrome (1 case). Only 26% cases of children with CCHD were diagnosed early, mostly came with chief complaint bluish appearance. Range of oxygen saturation at diagnosis varied from 51-90%. Among cases with late diagnosis, the most common defect was tetralogy of Fallot. Most late diagnosed CCHD came because of referral from other hospitals or pediatricians. Conclusion: The rate of delayed CCHD diagnosis still occurs in 74%. Factors that might be contribute to late CCHD diagnosis include certain CCHD types, nontertiary hospital nursery and absence of clinical findings.

Effectiveness of nationwide insurance coverage for next-generation sequencing in advanced colorectal cancer: A real-world data study.

3602 Background: Next-generation sequencing (NGS) has been covered by Korean national health insurance since March 2017 for patients with advanced colorectal cancer (CRC). We explored the clinical and socioeconomic impact of NGS compared with that of a single gene test (SGT) alone. Methods: From the nationwide database, we identified patients who 1) are diagnosed with advanced CRC classified as a distant disease using Summary Stage between March 1, 2017, and December 31, 2018; 2) had NGS or SGT within 2 months after diagnosis of advanced CRC. Multivariate logistic regression with covariates including age, sex, Charlson comorbidity index, insurance type, year of diagnosis, and region and type of hospital with the initial diagnosis was conducted to identify factors affecting the performance of NGS. We conducted 1:3 propensity score matching to minimize the impact of confounding factors. The median overall survival and the adjusted hazard ratio (aHR) were estimated using the Kaplan-Meier method and the Cox proportional hazard model, respectively. We calculated the total medical cost, and per patient per year (PPPY) cost adjusted for the survival period. Results: Among 5,029 patients with advanced CRC, 655 patients were identified as NGS group and 1,995 as SGT group after matching. Old age, low household income, rural location, and non-tertiary hospital were all characteristics that reduced the likelihood of obtaining an NGS test. The NGS group showed significantly favorable survival compared to the SGT group (median survival 29.2 vs. 24.9 months, P =.031; adjusted hazard ratio [HR] 0.86, P =.034). The total medical cost was lower in the NGS group ($55,445) than the SGT group ($57,989), and the PPPY cost was also lower in the NGS group ($44,879 and $49,734, respectively). Conclusions: We found that some socioeconomic factors such as age, insurance type, region, and hospital type may hamper the implementation of NGS. Also, lowering the barrier of NGS tests by reimbursing NGS in a specific clinical setting may have survival and cost-benefit in patients with advanced CRC.

Bringing The Swan Back: Improving Cardiogenic Shock Mortality

<h3>Background</h3> Mortality in cardiogenic shock is historically high, with advances in devices and mechanical cardio-circulatory support treatment is improving. Institutional recognition and implementation is of utmost importance. <h3>Objective</h3> To create early multidisciplinary activation of hemodynamic-guided management which includes early shock identification and implementation of mechanical circulatory support to improve the outcomes of cardiogenic shock patients at a non-tertiary care hospital. <h3>Methods</h3> A single-center, retrospective study was performed on patients who presented with cardiogenic shock secondary to acute decompensated heart failure or acute myocardial infarction between 2016-2020. Use of mechanical support including Impella and intra-aortic balloon pump as well as the use of Swan-Ganz catheters were examined. Endpoints of survival to discharge were also examined. <h3>Results</h3> A total of 209 patients presented with cardiogenic shock over a 5 year period. Data analysis showed that compared to baseline 2016 survival data of 37% (10/27), survival rates increased every year to 43%(12/28) in 2017, 54%(14/26) in 2018, 70 %(40/57) in 2019, and 71% (51/72) in 2020 (p= 0.001; OR 25.22; CI 3.55 to 179.23), facilitated by the implementation of a multidisciplinary cardiogenic shock team in 2018. In addition, the use of Swan-Ganz catheters substantially increased from 0% in 2016 to 100% in 2019. Specifically between 2018 and 2019, Swan-Ganz catheter usage increased from 43% in 2018 to 100% in 2019 as did survival percentage (54% to 71%) (p=0.06). The use of mechanical support increased from 9 patients in 2016 to 35 patients in 2020. The survival to discharge of patients requiring Impella support increased from 17% in 2018 to 67% in 2020. <h3>Conclusions</h3> The results of this study demonstrate that a multidisciplinary team approach to the treatment of cardiogenic shock resulted in better clinical outcomes. Survival to discharge improved substantially from 2016 to 2020. These improved outcomes were driven by a combination of a multidisciplinary team approach, utilization of Swan-Ganz catheters, and effective use of mechanical support devices.

Knowledge, Attitude and Practice of Hospital Pharmacists in Central China Towards Adverse Drug Reaction Reporting: A Multicenter Cross-Sectional Study.

Background: Healthcare professionals’ knowledge and attitudes towards adverse drug reactions (ADRs) and ADR reporting play a significant role in pharmacovigilance. This study aims to investigate the gap between knowledge and practice in ADR reporting among hospital pharmacists. Methods: This study is a multi-center, cross-sectional study based on a questionnaire survey. A semi-structured questionnaire was developed including knowledge, attitudes, and practices (KAP) towards ADR reporting. From October to November 2021, questionnaires were filled out on the internet by hospital pharmacists from a central province of China. The data analysis used a one-way ANOVA to analyze the differences between the pharmacist’s characteristics and knowledge and attitude, respectively. The ordinal logistic regression method was used to analyze the predictors of practice. Results: A total of 1,026 valid questionnaires from 512 medical institutions were collected. It was found that 88.8% of participants have a clear understanding of the ADR definition, while 59.6% of them have misunderstandings about the reporting time of new and serious adverse reactions. Most pharmacists showed positive attitudes towards ADR reporting. Higher education background, higher professional title, attending training, and clinical pharmacist resulted in higher knowledge scores. Higher education background, shorter working years, attending training, and from non-tertiary hospital related to higher attitude scores. In terms of practice, age, hospital type, working years, training, and pharmacist type all have significant associations with practice scores. Pharmacists’ knowledge score and attitude score were significant predictors of practice score with OR being 1.19 (95% CI: 1.06, 1.33) and 1.04 (95% CI: 1.005, 1.07). Conclusion: Although most hospital pharmacists showed positive attitudes towards ADR reporting, their knowledge and practice were still insufficient. Hospital pharmacists’ knowledge and attitude are associated with their practice towards ADR reporting. The training had a significant impact on the pharmacist’s knowledge, attitude, and practice.

Benefits of a Single Dose of Betamethasone in Imminent Preterm Labour.

Background: A complete course of prenatal corticosteroids reduces the possibility of morbimortality and neonatal respiratory distress syndrome (RDS). Occasionally, it is not possible to initiate or complete the maturation regimen, and the preterm neonate is born in a non-tertiary hospital. This study aimed to assess the effects of a single dose of betamethasone within 3 h before delivery on serious outcomes (mortality and serious sequelae) and RDS in preterm neonates born in tertiary vs. non-tertiary hospitals. Materials and methods: Preterm neonates who were <35 weeks and ≤1500 g, treated during a period of five years in a level IIIC NICU, were included in this retrospective cohort study. Participants were divided into groups as follows: NM, non-matured; PM, partial maturation (one dose of betamethasone up to 3 h antepartum). They were further divided based on their place of birth (NICU-IIIC vs. non-tertiary hospitals). The morbimortality rates and the severity of neonatal RDS were evaluated. Results: A total of 76 preterm neonates were included. A decrease in serious outcomes was found in the PM group in comparison to the NM group (OR = 0.2; 95%CI (0.07–0.9)), as well as reduced need for mechanical ventilation (54% vs. 68%). The mean time between maternal admission and birth was similar in both cohorts. The mean time from the administration of betamethasone to delivery was 1 h in the PM cohort. With regard to births in NICU-IIIC, the PM group performed better in terms of serious outcomes (32% vs. 45%) and the duration of mechanical ventilation (117.75 vs. 132.18 h) compared to the NM group. In neonates born in non-tertiary hospitals with PM in comparison to the NM group, a trend towards a reduced serious outcome (28.5% vs. 62.2%) and a decreased need for mechanical ventilation (OR = 0.09; 95%CI (0.01–0.8)) and maximum FiO2 (p = 0.01) was observed. Conclusions: A single dose of betamethasone up to 3 h antepartum may reduce the rate of serious outcomes and the severity of neonatal RDS, especially in non-tertiary hospitals.

Clinical Characteristics of Patients and Whole Genome Sequencing-Based Surveillance of Escherichia coli Community-Onset Bloodstream Infections at a Non-tertiary Hospital in CHINA.

Background: Escherichia coli is the most common pathogens in patients with community-onset blood stream infections (COBSI). Knowledge of the epidemiology of this disease is crucial to improve allocation of health resources, formulate isolation strategies that prevent transmission, and guide empirical antibiotic therapy.Methods: This retrospective observational study examined patients with E. coli COBSI (EC-COBSI) at a non-tertiary hospital in China. Whole-genome sequencing and analysis of the isolates was performed. The relationships of clinical variables with antimicrobial resistance and the genetic background of the isolates were examined.Results: There were 148 isolates in patients with EC-COBSI. All isolates were susceptible to ceftazidime/avibactam, carbapenems, and tigecycline; 35.1% were positive for extended spectrum β-lactamase (ESBL+); and blaCTX–M–14 was the most common ESBL gene. Patients with ESBL- isolates were more likely to receive appropriate empiric treatment than those with ESBL+ isolates (61.5% vs. 91.4%, p < 0.001), but these two groups had similar mortality rates. The overall 30-day mortality rate was 9.5%. Phylogenetic analysis showed that the isolates were diverse, and that the main sequence types (STs) were ST95, ST131, and ST69. Intra-abdominal infection was the primary source of disease, and isolates from these patients had lower frequencies of virulence genes.Conclusion: The mortality rate of patients with EC-COBSI was unrelated to ESBL status of the isolates. Most isolates had low resistance to most of the tested antimicrobial agents. The isolates were diverse, and multiple strains were related. Prevention and control of EC-COBSI should target prevention of patient colonization and the living environment.

Impacts of the COVID-19 Pandemic on Public Hospitals of Different Levels: Six-Month Evidence from Shanghai, China.

PurposeHospitals suffered from a precipitous loss of medical service globally due to COVID-19. The tragedy paradoxically produced an opportunity to investigate the patterns of change in medical services and revenue in hospitals at different levels when faced with a natural shock. This study aims to examine the effects of the COVID-19 pandemic in the first half of 2020 on hospital operation in Shanghai.MethodsWe obtained monthly characteristic and operational data of public hospitals (N=156) from January 1, 2018, to July 31, 2020, in Shanghai from the China Statistical Survey of Health Resources and Services Program. We constructed a set of difference-in-differences models to investigate the pandemic (from February 1 to March 31, 2020) and post-pandemic (from April 1 to July 31, 2020) effects on operational outcomes in hospitals of different levels, including outpatient and inpatient visits, outpatient and inpatient revenue, as well as the differential effects on local and nonlocal patients.ResultsThere were 46 tertiary hospitals and 110 non-tertiary hospitals involved in this study. Compared to a non-tertiary hospital during the COVID-19 pandemic, a tertiary hospital averagely experienced substantially more significant losses in outpatient visits (57.91 thousand, p < 0.01), inpatient visits (1.93 thousand, p < 0.01), outpatient revenue (18.88 million RMB, p < 0.01), and inpatient revenue (30.65 million RMB, p < 0.01) monthly. Compared to a non-tertiary hospital in the post-pandemic period, a tertiary hospital averagely lost more outpatient visits (18.02 thousand, p < 0.01) from all patients and inpatient visits (0.15 thousand, p < 0.01) from nonlocal patients, but was associated with higher inpatient revenue (2.24 million RMB, p < 0.01) from all patients and outpatient revenue (0.87 million RMB, p < 0.01) from nonlocal patients monthly.ConclusionMedical service and revenue for public hospitals in Shanghai dropped precipitously during the COVID-19 pandemic, but mainly recovered after the pandemic. Compared to non-tertiary hospitals, medical services and revenue in tertiary hospitals experienced more substantial reduction during the pandemic but had a faster recovery that maintained longer during the post-pandemic period.

Socioeconomic Disparities in Referral for Invasive Hemodynamic Evaluation for Advanced Heart Failure: A Nationwide Cohort Study.

Factors determining referral for advanced heart failure (HF) evaluation are poorly studied. We studied the influence of socioeconomic aspects on the referral process in Denmark, which has a taxpayer-funded national health care system. We identified all patients aged 18 to 75 years with a first diagnosis of HF during 2010 to 2018. Hospitalized patients had to be discharged alive and were then followed for the outcome of undergoing a right heart catheterization (RHC) used as a surrogate marker of advanced HF work-up. Of 36 637 newly diagnosed patients with HF, 680 (1.9%) underwent RHC during the follow-up period (median time to RHC of 280 days [interquartile range, 73-914]). Factors associated with a higher likelihood of RHC included the highest versus lowest household income quartile (HR, 1.56 [95% CI, 1.19-2.06]; P=0.001), being diagnosed with HF at a tertiary versus nontertiary hospital (HR, 1.68 [95% CI, 1.37-2.05]; P<0.001) and during a hospitalization versus outpatient visit (HR, 1.67 [95% CI, 1.42-1.95]; P<0.001). Level of education, occupational status, and distance to tertiary hospital were not independently associated with RHC. Older age, cancer, and a psychiatric diagnosis were independently associated with a decreased probability of RHC. Higher household income, HF diagnosis during hospitalization, and first admission at a tertiary hospital were associated with increased likelihood of subsequent referral for RHC independent of other demographic and clinical variables. Greater attention may be required to ensure timely referral for advanced HF therapies in lower income groups.

User-Centered Design: Developing the RELI Delivery System - a Low-Cost, Non-Electric, Pneumatic Infusion Pump.

PurposeInfusion pumps are the preferred method for intravenous delivery of drugs and fluids, and an essential tool in health facilities. Their high cost, complexity and reliance on electricity pose serious challenges to wide-spread use, availability and access in low- and middle-income countries. PATH developed the RELI Delivery System (RELI), a low cost, non-electric infusion pump to address these challenges. Input collected from fifty-nine newborn and maternal care providers and from seven national level decision makers in Uganda was used to guide product development, further informing product design requirements, and optimal design features to best serve their needs.MethodsA formative evaluation following a mixed methods approach including focus group discussions (FGDs), stakeholder interviews, and observations was used to collect data from end users.ResultsStakeholders provided critical input on the RELI prototype design features, safety criteria, and contexts of use of infusion pumps, as well as recommendations for design refinements. Infusion systems are greatly needed but not readily available and their use is limited to well-resourced higher level facilities, even though the need is high in non-tertiary care hospital where patient volume is high, resources are scarce, power is inconsistent, and facilities are understaffed and overcrowded. Users expressed a need for an affordable and simple device with an intuitive user interface, clear instructions for use, and basic safety features.ConclusionThe study provided important guidance for further design refinements based on input from respondents and confirmed the need for robust, affordable, infusion pumps that meet the requirements for use in low-resource settings.

Biomarkers and Tools for Predicting Alzheimer's Disease in the Preclinical Stage.

Alzheimer's disease (AD) is the only leading cause of death for which no disease-modifying therapy is currently available. Over the past decade, a string of disappointing clinical trial results has forced us to shift our focus to the preclinical stage of AD, which represents the most promising therapeutic window. However, the accurate diagnosis of preclinical AD requires the presence of brain β- amyloid deposition determined by cerebrospinal fluid or amyloid-positron emission tomography, significantly limiting routine screening and diagnosis in non-tertiary hospital settings. Thus, an easily accessible marker or tool with high sensitivity and specificity is highly needed. Recently, it has been discovered that individuals in the late stage of preclinical AD may not be truly "asymptomatic" in that they may have already developed subtle or subjective cognitive decline. In addition, advances in bloodderived biomarker studies have also allowed the detection of pathologic changes in preclinical AD. Exosomes, as cell-to-cell communication messengers, can reflect the functional changes of their source cell. Methodological advances have made it possible to extract brain-derived exosomes from peripheral blood, making exosomes an emerging biomarker carrier and liquid biopsy tool for preclinical AD. The eye and its associated structures have rich sensory-motor innervation. In this regard, studies have indicated that they may also provide reliable markers. Here, our report covers the current state of knowledge of neuropsychological and eye tests as screening tools for preclinical AD and assesses the value of blood and brain-derived exosomes as carriers of biomarkers in conjunction with the current diagnostic paradigm.