Left ventricular outflow tract obstruction in Takotsubo syndrome with cardiogenic shock: prognosis and treatment.

Background: Patients with Takotsubo syndrome (TTS) who develop cardiogenic shock may present with left ventricular outflow tract obstruction (LVOTO). The prognosis and treatment of this population have not been defined in previous studies. The aim of this study is to describe the clinical presentation, management, evolution and prognosis of a subgroup of patients with TTS and cardiogenic shock according to whether they present with LVOTO or not.

Better clinical outcomes in hospitalized COVID-19 minority patients with accompanying gastrointestinal symptoms.

Background And Aims: The novel coronavirus (SARS-CoV-2) is highly contagious pathogen that primarily causes respiratory illnesses. Howerver, multiple gastrointestinal (GI) symptoms have been reported in Coronavirus Disease of 2019 (COVID-19). We conducted a retrospective cohort study of inpatients with COVID-19 at the George Washington University Hospital (GWUH) to assess the prevalence of GI symptoms and their association with clinical outcomes.

The effect of anticoagulation on clinical outcomes in novel Coronavirus (COVID-19) pneumonia in a U.S. cohort.

Background: COVID-19 infection is associated with D-dimer elevations, high rates of thrombus formation, and poor clinical outcomes. We sought to determine if empiric therapeutic anticoagulation (AC) affected survival in COVID-19 patients compared to standard prophylactic AC.

Methods: Retrospective analysis of 402 COVID-19 patients hospitalized between March 15 and May 31, 2020 was performed.

Multidirectional switching behavior by transversely stretching a composite cholesteric elastomer.

We have analyzed the propagation of electromagnetic waves impinging obliquely in a hybrid material, made by a cholesteric elastomer slab with spherical metallic inclusions randomly located in the host material. We have carried out an analytical and numerical model which permits us to obtain the reflection and transmission spectra when the system is submitted to a mechanical stress applied transversely to the cholesteric axis. We have demonstrated that for a large interval of angles of incidence, it can be observed a switching behavior from a discriminatory circular filter to a polarization independent device.

Effect of handoff skills training for students during the medicine clerkship: a quasi-randomized study.

Continuity is critical for safe patient care and its absence is associated with adverse outcomes. Continuity requires handoffs between physicians, but most published studies of educational interventions to improve handoffs have focused primarily on residents, despite interns expected to being proficient. The AAMC core entrustable activities for graduating medical students includes handoffs as a milestone, but no controlled studies with students have assessed the impact of training in handoff skills.