Postpartum Pharmacologic Thromboprophylaxis and Venous Thromboembolism in a U.S. Cohort.

Objective: To evaluate the effect of administering postpartum heparin-based pharmacologic thromboprophylaxis on the incidence of postpartum venous thromboembolism (VTE) and complications.

Methods: This was a multicenter retrospective cohort study of all individuals delivering at more than 20 weeks of gestation at four U.S.

High Rate of Complications With Early Conversion Hip Arthroplasty Following Fracture Treatment.

Background: Conversion total hip arthroplasty (THA) is associated with higher rates of complications compared with primary THA, with prior surgical fixation of fractures in the ipsilateral hip shown to further increase these rates. There is a scarcity of literature on the effect of timing of conversion THA on complication rates. In this study, we evaluated early (≤6 months of index surgery) and late (>6 months of index surgery) conversion to THA following prior fixation of the proximal femur or acetabulum.

Middle Ear Mechanics in the Barn Owl.

The barn owl is a common research subject in auditory science due to its exceptional capacity for high frequency hearing and superb sound source localization capabilities. Despite longstanding interest in the auditory performance of barn owls, the function of its middle ear has attracted remarkably little attention. Here, we report the middle ear transfer function measured by laser Doppler vibrometry and direct measurements of inner ear pressures.

Neural and behavioral binaural hearing impairment and its recovery following moderate noise exposure.

Noise-induced cochlear synaptopathy has been studied for over 25 years with no known diagnosis for this disorder in humans. This type of "hidden hearing loss" induces a loss of synapses in the inner ear but no change in audiometric thresholds. Recent studies have shown that by two months post synaptopathy-inducing noise exposure, synapses in some animal species can regenerate.