Publications by authors named "Strom J"

Background: Food and Drug Administration-mandated postmarket studies for transcatheter aortic valve replacement in low-risk populations plan to use passively collected registry data linked to claims for long-term follow-up out to 10 years. Therefore, it is critically important to understand the validity of these claims-based end points. We sought to evaluate the ability of administrative claims with () codes to identify trial-adjudicated end points and reproduce treatment comparisons of aortic valve replacement in the Evolut Low Risk Trial.

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Background: Risk-benefit tradeoffs between restrictive versus liberal red blood cell transfusion strategies may vary across individuals. This exploratory analysis aimed to derive and evaluate individualized treatment effects of defined transfusion strategies in patients with acute MI and anemia with the goal of minimizing adverse cardiovascular outcomes.

Methods: This study analyzed 3,447 (98.

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Background: Chronic kidney disease (CKD) is associated with higher risk of myocardial infarction and anemia. Among patients with anemia and CKD who experience myocardial infarction, it remains uncertain if a liberal red blood cell transfusion threshold strategy (hemoglobin cutoff [Hgb] < 10 g/dL) is superior to a restrictive transfusion threshold (Hgb 7-8 g/dL) strategy.

Methods: Among the 3,504 patients enrolled in the Myocardial Ischemia and Transfusion (MINT) trial with non-missing creatinine, we compared baseline characteristics and 30-day and 6-month outcomes of patients without CKD (N = 1279), CKD with eGFR 30-60 mL/min/1.

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Background: Access to clear and comprehensible health information is crucial for patient empowerment, leading to improved self-care, adherence to treatment plans, and overall health outcomes. Traditional methods of information delivery, such as written documents and oral communication, often result in poor memorization and comprehension. Recent innovations, such as animation videos, have shown promise in enhancing patient understanding, but comprehensive investigations into their effectiveness across various health care settings are lacking.

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Objectives: To evaluate general practitioners' (GPs') ability to perform focused lung ultrasound (FLUS) following a training program and assess FLUS feasibility in general practice. Also, to describe FLUS findings and evaluate GPs' ability to interpret these in adults with acute lower respiratory tract infection (LRTI) when pneumonia is suspected and assess GPs' perception of FLUS impact.

Methods: Nine GPs, using point-of-care ultrasound, completed a FLUS training program.

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In areas with high densities of salmon farming, spillover of the ectoparasitic salmon louse Lepeophtheirus salmonis poses a major threat to wild anadromous salmonids. By combining experimentally salmon louse infestation (mean ± standard deviation = 0.25 ± 0.

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Article Synopsis
  • * Current guidelines for treating asymptomatic patients focus on heart size and function, but even after surgery, there's still a risk of heart failure and death.
  • * New methods, including machine learning and advanced imaging techniques, are being developed to identify high-risk patients who might benefit from earlier interventions, with valve repair being the preferred treatment.
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Background: Identifying individuals with severe aortic stenosis (AS) at high risk of mortality remains challenging using current clinical imaging methods.

Objectives: The purpose of this study was to evaluate an artificial intelligence decision support algorithm (AI-DSA) to augment the detection of severe AS within a well-resourced health care setting.

Methods: Agnostic to clinical information, an AI-DSA trained to identify echocardiographic phenotype associated with an aortic valve area (AVA)<1 cm using minimal input data (excluding left ventricular outflow tract measures) was applied to routine transthoracic echocardiograms (TTE) reports from 31,141 U.

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Background: The optimal hemoglobin threshold to guide red blood cell (RBC) transfusion for patients with acute myocardial infarction (MI) and anemia is uncertain.

Objective: To estimate the efficacy of 4 individual hemoglobin thresholds (<10 g/dL [<100 g/L], <9 g/dL [<90 g/L], <8 g/dL [<80 g/L], and <7 g/dL [<70 g/L]) to guide transfusion in patients with acute MI and anemia.

Design: Prespecified secondary analysis of the MINT (Myocardial Ischemia and Transfusion) trial using target trial emulation methods.

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Motivation: While the release of AlphaFold (AF) represented a breakthrough for the prediction of protein complex structures, its sensitivity, especially when using full length protein sequences, still remains limited. Modeling success rates might increase if AF predictions were guided by likely interacting protein fragments. This approach requires available sets of highly confident protein-protein interface types.

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Over the past few years, sleep research has shown impressive performance of deep neural networks in the area of automatic sleep-staging. Recent studies have demonstrated the necessity of combining multiple data sets to obtain sufficiently generalizing results. However, working with large amounts of sleep data can be challenging, both from a hardware perspective and because of the different preprocessing steps necessary for distinct data sources.

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  • * In a study involving nearly 9 million Medicare patients, 60% experienced frailty progression over a median follow-up of 2.4 years, with rapid progression correlating to worse health outcomes.
  • * Patients with faster frailty progression had fewer days alive at home, indicating a decline in quality of life, further emphasizing the negative impact of worsening frailty on overall health.
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  • Diffuse alveolar hemorrhage (DAH) is a serious lung complication that can occur after hematopoietic cell transplantation (HCT) in patients under 21, with a low incidence rate of about 1% in this population.
  • A study analyzed data from nearly 7,000 patients to identify risk factors for developing DAH, finding that nonmalignant hematologic disease, specific transplant medication regimens, and severe acute graft-versus-host disease significantly increased the risk.
  • Critical care patients with DAH also showed higher instances of various health issues, including systemic and pulmonary hypertension, and other serious conditions like renal failure.
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The aim of this study was to investigate the challenges women with neuromuscular disease face when having to urinate when away from home. The design for this study was qualitative using the interpretive description methodology and the Sense of Coherence theory. The method was three semi-structured focus group interviews with 12 women (3 ambulant and 9 non-ambulant) with neuromuscular diseases at a specialized rehabilitation hospital.

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Background: Transcatheter aortic valve implantation (TAVI) rates are lower among Black compared with White individuals. However, it is unclear whether racial residential segregation, which remains common in the United States, contributes to observed disparities in TAVI rates.

Objectives: The purpose of this study was to evaluate the association between county-level racial segregation, and aortic stenosis (AS) diagnosis, management, and outcomes.

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  • A study examined the incidence, risk factors, and outcomes of pulmonary hypertension (PH) in pediatric patients after hematopoietic stem cell transplants (HCT) conducted in a PICU setting from 2008 to 2014.
  • Out of nearly 7,000 HCT patients, 29 developed PH, revealing a low overall incidence of 0.42%, but a higher prevalence of 2.72% among patients needing intensive care post-transplant.
  • Key risk factors for developing PH included being Black/African American, having metabolic disorders, and a lower functional status prior to transplant, with patients experiencing significant complications and a 6-month survival rate of only 51.7% after PH diagnosis.
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Background: Little is known about the challenges faced by women with a neuromuscular disease (NMD) when having to go to the toilet in other places than home; a topic that is highly important for participation and bladder health.

Objective: The aim was to investigate whether women with NMD have problems in going to the toilet when not at home, the problems' impact on their social activities, education, and working life, which strategies they use to manage the problems, and the prevalence of lower urinary tract symptoms (LUTS).

Methods: A national survey containing questions on type of NMD, mobility, impacts on social activities, education, working life, and bladder health was developed by women with NMD and researchers.

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  • The systematic review investigates the prevalence of stroke types in older (≥80 years) versus younger (<80 years) individuals.
  • Analysis of eight studies revealed that older adults have a higher prevalence of cardioembolic strokes and a lower prevalence of small vessel disease.
  • The findings suggest that while cardioembolic strokes are more common in older individuals, more extensive research is needed for conclusive insights due to the limited number of studies.
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  • The study aimed to establish normal echocardiographic values for heart chamber size and function in healthy adults aged 65 and older, addressing the lack of clear definitions for age-related cardiac health.
  • Analysis of 3,032 participants, with 608 fitting healthy aging criteria, revealed that sex and race/ethnicity significantly affected cardiac structure and function, including noted differences in chamber size and function.
  • Current guidelines erroneously classified 81.6% of healthy older adults as having cardiac abnormalities, highlighting the need for updated standards that reflect the diversity within this population.
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Background: The mortality risk attributable to moderate aortic stenosis (AS) remains incompletely characterized and has historically been underestimated. We aim to evaluate the association between moderate AS and all-cause death, comparing it with no/mild AS (in a general referral population and in patients with heart failure with reduced ejection fraction).

Methods And Results: A systematic review and pooled meta-analysis of Kaplan-Meier-derived reconstructed time-to-event data of studies published by June 2023 was conducted to evaluate survival outcomes among patients with moderate AS in comparison with individuals with no/mild AS.

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Background: The use of antibiotics is a key driver of antimicrobial resistance and is considered a major threat to global health. In Denmark, approximately 75% of antibiotic prescriptions are issued in general practice, with acute lower respiratory tract infections (LRTIs) being one of the most common indications. Adults who present to general practice with symptoms of acute LRTI often suffer from self-limiting viral infections.

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Right ventricular (RV) to pulmonary arterial (PA) coupling describes the ability of the RV to augment contractility in response to increased afterload. Several echocardiographic indexes of RV-PA coupling have been defined; however, the optimal numerator in the coupling ratio is unclear. We sought to establish which of these ratios is best for assessing RV-PA coupling based on their relations with 6-minute walk distance (6MWD), N-terminal pro-B-type natriuretic peptide (NT-proBNP), and the Kansas City Cardiomyopathy Questionnaire (KCCQ) in aging adults.

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