Post-Extubation Stridor Complicating COVID-19-Associated Acute Respiratory Distress Syndrome: A Case Series.

Post-extubation stridor is a known complication of mechanical ventilation that affects a substantial number of all critical care patients and leads to increased morbidity and mortality. Common risk factors for the development of post-extubation stridor include female gender, older age, and prolonged length of mechanical ventilation. There may be an increased incidence of post-extubation stridor in patients who require mechanical ventilation to manage the respiratory complications of COVID-19.

Atrial Myxoma Presenting with Palpitations: A Case Report.

Atrial myxomas are a rare phenomenon and although benign, primary neoplasms of the heart can be burdensome depending on their location. Clinical symptoms are caused through a variety of mechanisms including conduction disturbances, obstruction, and valvular interference. Size and symptom development are strongly correlated and can almost always be detected by the use of echocardiography, magnetic resonance imaging or computed tomography.

Drosophila muller f elements maintain a distinct set of genomic properties over 40 million years of evolution.

The Muller F element (4.2 Mb, ~80 protein-coding genes) is an unusual autosome of Drosophila melanogaster; it is mostly heterochromatic with a low recombination rate. To investigate how these properties impact the evolution of repeats and genes, we manually improved the sequence and annotated the genes on the D.