Pneumococcal vaccination reduces in-hospital mortality,length of stay and medical expenditure in hospitalized elderly patients

Pneumococcal vaccination has been shown to reduce occurrence of invasive pneumococcal diseases in elderly patients. In this study, we investigated the real-world efficacy of pneumococcal vaccination implemented in elderly individuals in Japan. We reviewed the in-patient database of Juntendo University Hospital and selected elderly patients (≥65 years-old) who had received in-patient care in the general medicine department during 2014–2018. A total of 1355 patients were retrospectively enrolled and comprised of 1045 unvaccinated and 315 vaccinated elderly individuals. Prior vaccination was found associated with all-cause shorter hospital stays (adjusted RR = 0.66, 95% CI = 0.57 to 0.76) and less medical expenditure (adjusted RR = 0.76, 95% CI = 0.66 to 0.87) compared with no vaccination, as well as protection for all-cause in-hospital mortality (adjusted OR = 0.42, 95% CI = 0.22 to 0.83). The association of shorter hospital stays and less medical expenditure with vaccination was also observed in the context of pneumonia, although no altered risk in mortality was observed. In conclusion, this study is one of the first reporting real-world data after the initiation of pneumococcal vaccination program in 2014 in Japan. The national PPV23 vaccination program contributed to the reduction of all-cause in-patient days, mortality, and medical expenses in the elderly aged ≥65 years. Further data is warranted to evaluate the contribution from influenza vaccination and protein-conjugate based pneumococcal vaccine.     

Proactive delivery of nicotine replacement therapy to families of hospitalized infants in a NICU: A randomized controlled pilot trial

Neonatal ICU (NICU) hospitalizations provide opportunities to engage individuals/families who smoke with evidence-based cessation treatments to protect infants from tobacco smoke exposure. The aim of this pilot study was to establish the feasibility and potential efficacy of providing motivational advice and NRT (MA + NRT) to families of NICU infants. RCT methodology equally allocated participants who reported ≥1 household smoker (N = 32) from a large NICU to MA + NRT or referral to a Quitline. The primary outcome was accepting NRT patches (MA + NRT) and use of NRT. Bayesian analyses modeled NRT use as a function of treatment group. Most MA + NRT participants (81.3%; n = 13) accepted the patches. No Quitline participants called the Quitline. NRT use differed across groups, indicating a 0.907 posterior probability that a positive effect for MA + NRT exists (RR = 2.32, 95% CI = [0.68–11.34]). This study demonstrated feasibility and acceptability for offering NRT and motivational advice to NICU parents and supports further intervention refinement with NICU families.     

The incidence and factors of inappropriate rapid antigen test usage for group A streptococcus

IntroductionAlthough rapid antigen tests (RADTs) for group A streptococcus (GAS) can help diagnose group A streptococcal pharyngitis, little is known about the inappropriate use of these RADTs.MethodsThis retrospective observational study compared the appropriate vs. inappropriate use of RADTs in patients who had a RADT between January 2019 and August 2022. RADTs for patients with a low Centor score of 0–1 point were deemed inappropriate.ResultsOf the 1015 patients, 380 (37.4%) had inappropriate RADTs. Patients with asthma were associated with an increased risk of inappropriate testing. In contrast, during the coronavirus 2019 pandemic, outpatients and residents were associated with a reduced risk of inappropriate testing. Consequent to the inappropriate use of RADTs, 162 (16.0%) patients received potentially inappropriate antibiotics.ConclusionsOur results suggest that diagnostic stewardship for pharyngitis, including education for healthcare workers, is needed to reduce inappropriate test ordering and prevent unnecessary care.     

A Target Antigen–Based Approach to the Classification of Membranous Nephropathy

ObjectiveTo describe the clinical and pathological phenotype of membranous nephropathy (MN) associated with M-type-phospholipase–A₂-receptor (PLA₂R), thrombospondin-type-1-domain-containing-7A (THSD7A), semaphorin 3B (SEMA3B), neural-epidermal-growth-factor-like-1-protein (NELL-1), protocadherin 7 (PCDH7), exostosin 1/exostosin 2 (EXT1/EXT2) and neural cell adhesion molecule 1 (NCAM-1) as target antigens.MethodsA retrospective cohort of 270 adult patients with biopsy-proven MN diagnosed between January 2015 and April 2020 was classified as PLA₂R-, THSD7A-, SEMA3B-, NELL-1–, PCDH7-, EXT1/EXT2-, NCAM-1–associated or septuple-negative MN using serologic tests, immunostaining, and/or mass spectrometry. Clinical, biochemical, pathologic, and follow-up data were systematically abstracted from the medical records, including disease activity of conditions traditionally associated with MN and occurring within 5 years of MN diagnosis.ResultsPatients with PLA₂R-associated MN were predominantly middle-aged white men without associated disease. The presence of associated disease did not affect the clinical and pathologic characteristics of PLA₂R-associated MN, suggesting that they were coincidental rather than causally linked. THSD7A-, NELL-1–, PCDH7-, and NCAM-1–associated MN were rare and SEMA3B-associated MN was not discovered in our cohort. EXT1/EXT2-associated MN was primarily diagnosed in younger women with active systemic autoimmunity. A significant proportion of septuple-negative patients had associated malignancy or systemic autoimmunity.ConclusionThe widely used distinction between primary and secondary MN has limitations. We propose a refined terminology that combines the target antigen and associated disease to better classify MN and guide clinical decision making.     

Respiratory distress and its associated factors among preterm neonates admitted to Mizan Tepi University teaching hospital,Bench Maji Zone,South West Ethiopia, 2020

BackgroundRespiratory distress (RD) is a common problem in the neonatal period and one of the most common reasons for neonates to be admitted to the neonatal intensive care unit (NICU) which frequently leads to neonatal mortality. However, there are few studies on neonatal respiratory distress and its associated factors in Ethiopia. This study was aimed to determine the prevalence and associated factors of respiratory distress in the neonatal intensive care unit at Mizan Tepi University teaching hospital.MethodsAn institutional based retrospective cross sectional study was conducted among preterm infants admitted in a neonatal intensive care unit (NICU) of Mizan Tepi University teaching hospital from May 9/2016 to December 30/2019. Simple random sampling technique was used to recruit a predetermined sample size by using registration numbers of the clients enrolled through computer generated random numbers. Binary Logistic regression was used to analyze the association between neonatal respiratory distress and explanatory variables. Explanatory variables that had a P-value of less than 0.25 and fulfilled the assumption of logistic regression from bi-variable logistic regression were considered for the multivariable logistic regression model. The strength of association was evaluated using an odds ratio at 95% confidence interval and a P-value < 0.05 was considered to declare significant associations.ResultThe proportion of respiratory distress in the current study was 34.0% at 95% CI 29.4%–38.6%. Respiratory distress was significantly associated with being a multiple (twin) AOR = 1.8(1.05–3.09), non-cephalic presentation at delivery AOR = 4.9(1.96–12.2), presence of asphyxia AOR = 1.85(1.01–3.69), an APGAR of <7 at 5-min AOR = 1.64(1.18–2.7), and a gestational age between 31 and 34 weeks AOR = 1.85(1.12–3.5).ConclusionThe prevalence of neonatal respiratory distress in the current study was high. Nearly one out of three neonates admitted to Mizan Tepi University teaching hospital NICU's had respiratory distress. Respiratory distress was significantly associated with a low 5-min APGAR score, a gestational age between 28 and 31, a multiple (twin) pregnancy, non-cephalic presentation, and neonatal asphyxia. Therefore, health professionals working in the delivery room and/or the neonatal intensive care unit should be mindful of these associated factors for early detection and appropriate management of RD to ensure better outcomes in all infants presenting with respiratory distress.     

An Electronic Health Record–Compatible Model to Predict Personalized Treatment Effects From the Diabetes Prevention Program: A Cross-Evidence Synthesis Approach Using Clinical Trial and Real-World Data

ObjectiveTo develop an electronic health record (EHR)-based risk tool that provides point-of-care estimates of diabetes risk to support targeting interventions to patients most likely to benefit.Patients and MethodsA risk prediction model was developed and validated in a large observational database of patients with an index visit date between January 1, 2012, and December 31, 2016, with treatment effect estimates from risk-based reanalysis of clinical trial data. The risk model development cohort included 1.1 million patients with prediabetes from the OptumLabs Data Warehouse (OLDW); the validation cohort included a distinct sample of 1.1 million patients in OLDW. The randomly assigned clinical trial cohort included 3081 people from the Diabetes Prevention Program (DPP) study.ResultsEleven variables reliably obtainable from the EHR were used to predict diabetes risk. This model validated well in the OLDW (C statistic = 0.76; observed 3-year diabetes rate was 1.8% (95% confidence interval [CI], 1.7 to 1.9) in the lowest-risk quarter and 19.6% (19.4 to 19.8) in the highest-risk quarter). In the DPP, the hazard ratio (HR) for lifestyle modification was constant across all levels of risk (HR, 0.43; 95% CI, 0.35 to 0.53), whereas the HR for metformin was highly risk dependent (HR, 1.1; 95% CI, 0.61 to 2.0 in the lowest-risk quarter vs HR, 0.45; 95% CI, 0.35 to 0.59 in the highest-risk quarter). Fifty-three percent of the benefits of population-wide dissemination of the DPP lifestyle modification and 73% of the benefits of population-wide metformin therapy can be obtained by targeting the highest-risk quarter of patients.ConclusionThe Tufts–Predictive Analytics and Comparative Effectiveness DPP Risk model is an EHR-compatible tool that might support targeted diabetes prevention to more efficiently realize the benefits of the DPP interventions.     

Study of factors related to recurrence within 30 days after pneumonia treatment for community-onset pneumonia

IntroductionIt is not uncommon for patients hospitalized with pneumonia to experience an early relapse. Here, we investigated the factors related to pneumonia recurrence in Japan.PurposeWe aimed to elucidate the factors related to early recurrence after completion of pneumonia treatment.MethodsWe examined 696 patients with community-acquired pneumonia (CAP) and nursing and healthcare-associated pneumonia (NHCAP) who were admitted to our hospital between October 2010 and February 2018, excluding those who died during hospitalization. Logistic regression analysis was used to assess the endpoint of recurrence within 30 days after the end of antibiotic treatment.ResultsNHCAP, chronic lung disease and duration of antibiotic treatment were significant risk factors for recurrence of pneumonia within 30 days after antibiotic discontinuation. Aspiration pneumonia was not be a significant factor in the early recurrence of pneumonia.ConclusionsLong-term use of antimicrobials may be a risk factor in early recurrence of pneumonia.     

Daily practice and prognostic factors for pneumonia caused by methicillin-resistant Staphylococcus aureus in Japan: A multicenter prospective observational cohort study

Pneumonia caused by methicillin-resistant Staphylococcus aureus (MRSA) is associated with poor clinical outcomes. We surveyed clinical outcomes of MRSA pneumonia in daily practice to identify risk factors for the clinical failure and mortality in patients with MRSA pneumonia.This multicenter prospective observational study was performed across 48 Japanese medical institutions. Adult patients with culture-positive MRSA pneumonia were recruited and treated with anti-MRSA antibiotics. The relationships between clinical and microbiological characteristics and clinical outcomes at test of cure (TOC) or 30-day all-cause mortality were analyzed.In total, 199 eligible patients, including nursing and healthcare-associated pneumonia (n = 95), hospital-acquired pneumonia (n = 76), and community-acquired pneumonia (n = 25), received initial treatment with anti-MRSA agents such as vancomycin (n = 135), linezolid (n = 36), or teicoplanin (n = 22). Overall clinical failure rate at TOC and the 30-day mortality rate were 51.1% (48/94 patients) and 33.7% (66/196 patients), respectively. Multivariable logistic regression analyses for vancomycin-treated populations revealed that abnormal white blood cell count (odds ratio [OR] 4.34, 95% confidence interval [CI] 1.31–14.39) was a risk factor for clinical failure and that no therapeutic drug monitoring (OR 3.10, 95% CI 1.35–7.12) and abnormally high C-reactive protein level (OR 3.54, 95% CI 1.26–9.92) were risk factors for mortality.In conclusion, this study provides evidence that majority of MRSA pneumonia patients are initially treated with vancomycin in Japan, and the absence of therapeutic drug monitoring for vancomycin is significantly associated with the mortality in patients with MRSA pneumonia.     

Outcomes of Athletes With Genetic Heart Diseases and Implantable Cardioverter-Defibrillators Who Chose to Return to Play

ObjectiveTo evaluate outcomes for athletes with a genetic heart disease (GHD) and an implantable cardioverter-defibrillator (ICD) after return-to-play (RTP) approval.Patients and MethodsWe conducted a retrospective review of athletes with GHD and an ICD who were evaluated and treated in Mayo Clinic’s Genetic Heart Rhythm Clinic between July 2000 and July 2020. Data on frequency of GHD-associated breakthrough cardiac events (BCEs), inappropriate shocks, and ICD-related complications were collected and analyzed.ResultsThere were 125 (57 [45.6%] female) GHD-positive athletes with an ICD (mean age at RTP was 19.8±11.6 years); 56 of 125 (44.8%) had long QT syndrome. Overall, 42 ventricular fibrillation–terminating ICD therapies were given to 23 athletes (18.4%) over an average follow-up of 3.6±3.5 years. Athletes with an ICD were more likely to experience a BCE during athletic follow-up (n=28 of 125, 22.4%) compared with those without an ICD (n=4 of 533, 0.8%; P<.0001). The BCE rate for athletes with ICDs was 6.3 events per 100 athlete-years of follow-up; this included 5.1 ventricular fibrillation–terminating events per 100 athlete-years compared with 0.3 BCEs per 100 patient-years for athletes without ICDs. In total, 6 (4.8%) athletes experienced at least one inappropriate shock (1.34 per 100 athlete-years) and 28 (29.6%) athletes had at least one other device-related complication (5.02 per 100 patient-years). However, none of these other complications occurred during sports.ConclusionThis 20-year single-center study provides the longest spanning retrospective review of outcomes for athletes with ICDs given RTP approval. For athletes with GHD and an ICD, no sports-associated deaths or reports of sports-related ICD damage occurred.     

Health risk management behaviors and related factors among Japanese university students participating in short-term study abroad programs

BackgroundOverseas travelers should prepare for health problems at their destinations prior to travel. No prospective studies have evaluated factors related to health risk management behaviors among overseas travelers, specifically young travelers.MethodsWe prospectively collected data from pre- and post-travel questionnaire surveys, targeting students of a university in Japan who participated in short-term study abroad programs (n = 532, 6 to 38 travel days and 11 countries). We examined health information collection, receipt of travel vaccinations for the programs and medical kit preparation as health risk management behavior outcomes and their related factors among the participants (82.7% follow-up rate).ResultsIn total, 17.5%, 8.0% (28.6% in Southeast Asia) and 68.9% of participants, respectively, collected travel health information via the Japanese or foreign official websites, received travel vaccinations and carried commonly used medicines. Female, travel experience to study destination, parental medical occupation and presence of illness in treatment were positively associated with the health risk management behaviors after adjusting for the covariates including study destination. For example, the adjusted odds ratio (OR) (95% confidence interval [CI]) of receiving travel vaccinations was 4.16 (1.70–10.2) for parental medical occupation relative to non-medical occupation. The adjusted OR (95% CI) of collecting travel health information was 2.54 (1.04–6.21) for travel experience to study destination relative to no overseas travel experience.ConclusionsPersonal characteristics including overseas travel experience and parental occupation provide a useful insight into approaches to promoting health risk management among university students traveling abroad.     

Incidence and Risk of Various Types of Arterial Thromboembolism in Patients With Cancer

ObjectiveTo describe the temporal association and identify risk factors between cancer diagnosis and various types of arterial thromboembolism (ATE).Patients and MethodsWe inquired an aggregated electronic health record database (Explorys, IBM Corp., Armonk, New York) and identified patients with cancer from January 1999 to October 2019, with various types of ATE, including myocardial infarction, acute ischemic stroke, acute limb ischemia, acute mesenteric ischemia, acute renal infarction, and retinal artery occlusion. We investigated the temporal relationship between cancer diagnosis and ATE events by examining the incidence ratio (IR) of ATE before and after diagnosis of cancer.ResultsWe identified 305,384 patients with cancer and ATE. The 30-day interval IR of total ATE was elevated shortly before and after cancer diagnosis, which was consistent among different ATE and cancer types. The incidence was highest within a 330-day window (90 days before and 240 days after cancer diagnosis), and IR peaked at 13.9 (95% confidence interval [CI], 13.6 to 14.2) in the first 30 days following diagnosis of cancer. Compared with patients with cancer who never developed ATE, patients with ATE had more cardiovascular risk factors at baseline. Patients with brain cancer, lung cancer, colorectal cancer, and pancreatic cancer had the highest risk of developing ATE, whereas ATE type was anatomically associated with cancer type.ConclusionIn this observational study of an aggregated US patient population, those with newly diagnosed cancer had increased risk of ATE events. This risk was most elevated in a 330-day window around cancer diagnosis and was consistent across different types of ATE and cancer.     

Preoperative Evaluation and Management of Patients With Select Chronic Gastrointestinal,Liver, and Renal Diseases

Patients with chronic gastrointestinal, hepatic, and renal disease are frequently encountered in clinical practice. This is due in part to the rising prevalence of risk factors associated with these conditions. These patients are increasingly being considered for surgical intervention and are at higher risk for multiple perioperative complications. Many are able to safely undergo surgery but require unique considerations to ensure optimal perioperative care. In this review, we highlight relevant perioperative physiology and outline our approach to the evaluation and management of patients with select chronic gastrointestinal, hepatic, and renal diseases. A comprehensive preoperative evaluation with a multidisciplinary approach is often beneficial, and specialist involvement should be considered. Intraoperative and postoperative plans should be individualized based on the unique medical and surgical characteristics of each patient.     

Guest Editorial: Two hits and four factors affecting the development of,or resistance to,transfusion-associated graft-versus-host disease

Transfusion-associated graft-versus-host disease (TA-GVHD), a rare but usually fatal adverse effect of transfusion, is hypothesized here as a two-hit phenomenon: 1) predisposing “cytokine weather” irrespective of immunocompetence, plus 2) consequence of a (partial or total) one-way (donor to recipient) HLA match of viable donor T lymphocytes with proliferation potential. Since the introduction of irradiation, universal leukoreduction with third or later generation filters, and avoidance of transfusion from blood relatives, TA-GVHD has been successfully prevented in developed countries. However, potassium release from stored red blood cells is accelerated after irradiation, increasing the likelihood of hyperkalemia-associated mortality during rapid, and/or high-volume RBC transfusions, including exchange transfusions and extracorporeal circuit priming. Pathogen inactivation technologies may effectively prevent T lymphocyte replication, but have not yet been perfected for whole blood or red cell components. Protection against organ transplantation-associated GVHD (mainly from liver transplants) would likewise be improved by knowing and avoiding HLA one-way matched organ donors.     

Synergistic Assessment of Mortality Risk According to Body Mass Index and Exercise Ability and Capacity in Patients Referred for Radionuclide Stress Testing

ObjectiveTo determine the interrelationship between body mass index (BMI), mode of stress testing (exercise or pharmacological), exercise capacity, and all-cause mortality in patients referred for stress-rest single photon emission computed tomography myocardial perfusion imaging.Patients and MethodsWe evaluated all-cause mortality in 21,638 patients undergoing stress-rest single photon emission computed tomography myocardial perfusion imaging between January 2, 1991, and December 31, 2012. Patients were divided into exercise and pharmacologically tested groups and 9 BMI categories. The median follow-up was 12.8 years (range, 5.0-26.8 years).ResultsIn exercise patients, mortality was increased with both low and high BMI vs patients with a normal referent BMI of 22.5 to 24.9 kg/m². In pharmacologically tested patients, only low BMI, but not high BMI, was associated with increased mortality vs normal BMI. When exercise and pharmacologically tested groups were compared directly, pharmacologically tested patients manifested a marked increase in mortality risk vs exercise patients within each BMI category, ranging from an approximately 4-fold increase in mortality in those with normal or high BMI to a 12.3-fold increase in those with low BMI values. Similar findings were observed in a cohort of 4804 exercise and 4804 pharmacologically tested patients matched to have similar age and coronary artery disease risk factor profiles. In exercise patients, further risk stratification was achieved when considering both BMI and metabolic equivalent tasks of achieved exercise.ConclusionThe combined assessment of BMI and exercise ability and capacity provides synergistic and marked risk stratification of future mortality risk in patients referred for radionuclide stress testing, providing considerable insights into the “obesity paradox” that is observed in populations referred for stress testing.