Background: Screening for asymptomatic, undiagnosed atrial fibrillation (AF) has the potential to allow earlier treatment, possibly resulting in prevention of strokes, but also to increase medical resource utilization.
Objective: To compare healthcare utilization rates during the year following initiation of screening among participants screened for AF by electrocardiogram (ECG) sensor patch compared with a matched observational control group.
Methods: A total of 1718 participants recruited from a health care plan based on age and comorbidities who were screened with an ECG patch (actively monitored group) as part of a prospective, pragmatic research trial were matched by age, sex, and CHADS-VASc score with 3371 members from the same health plan (observational control group).
Objectives: The advent of large databases, wearable technology, and novel communications methods has the potential to expand the pool of candidate research participants and offer them the flexibility and convenience of participating in remote research. However, reports of their effectiveness are sparse. We assessed the use of various forms of outreach within a nationwide randomized clinical trial being conducted entirely by remote means.
View Article and Find Full Text PDFImportance: Opportunistic screening for atrial fibrillation (AF) is recommended, and improved methods of early identification could allow for the initiation of appropriate therapies to prevent the adverse health outcomes associated with AF.
Objective: To determine the effect of a self-applied wearable electrocardiogram (ECG) patch in detecting AF and the clinical consequences associated with such a detection strategy.
Design, Setting, And Participants: A direct-to-participant randomized clinical trial and prospective matched observational cohort study were conducted among members of a large national health plan.
Efficient methods for screening populations for undiagnosed atrial fibrillation (AF) are needed to reduce its associated mortality, morbidity, and costs. The use of digital technologies, including wearable sensors and large health record data sets allowing for targeted outreach toward individuals at increased risk for AF, might allow for unprecedented opportunities for effective, economical screening. The trial's primary objective is to determine, in a real-world setting, whether using wearable sensors in a risk-targeted screening population can diagnose asymptomatic AF more effectively than routine care.
View Article and Find Full Text PDFBackground: An open-label, randomized, crossover study was performed to investigate the effect of multiple doses of darunavir co-administered with low-dose ritonavir (DRV/r) on the steady-state pharmacokinetics of the oral contraceptives ethinyl estradiol (EE) and norethindrone (NE) (commercial name of the combined drug Ortho-Novum 1/35) in 19 HIV-negative healthy women.
Methods: In session 1, participants received 35 microg EE and 1.0 mg NE from days 1 to 21.
Background: In a previous clinical trial comparing COMVAX with its monovalent components, PedvaxHIB and RECOMBIVAX HB, one of 92 comparisons of post-vaccination adverse experiences revealed a higher rate of unusual, high-pitched crying following the second, but not the first or third doses of COMVAX compared with two monovalent control vaccines. Rates of prolonged crying were similar between groups at each visit.
Objectives: To compare the frequencies of unusual, high-pitched crying between recipients of COMVAX plus placebo and recipients of PedvaxHIB plus RECOMBIVAX HB following the second vaccine doses (primary) and to summarize the frequency of unusual, high-pitched crying and prolonged crying after each vaccination visit.