Gastrointestinal mucosal damage in patients with COVID-19 undergoing endoscopy: an international multicentre study.

Background: Although evidence suggests frequent gastrointestinal (GI) involvement during coronavirus disease 2019 (COVID-19), endoscopic findings are scarcely reported.

Aims: We aimed at registering endoscopic abnormalities and potentially associated risk factors among patients with COVID-19.

Methods: All consecutive patients with COVID-19 undergoing endoscopy in 16 institutions from high-prevalence regions were enrolled.

Emergency surgery after percutaneous transmitral commissurotomy: operative versus echocardiographic findings, mechanisms of complications, and outcomes.

Objective: This study was undertaken to determine the clinical profile of patients undergoing emergency surgery after balloon mitral valvotomy, to note operative findings and compare them with those of transthoracic echocardiography, to describe the mechanisms of complications, and to describe outcomes.

Methods: A retrospective study was undertaken of patients requiring emergency surgery after percutaneous mitral valvotomy with an Inoue balloon from January 1990 to December 2003. The data analyzed included demographic variables, causes and clinical presentations of complications, and outcome.

Supravalvar aortic stenosis: clinical and hemodynamic profile, and surgical outcome.

Background: Supravalvar aortic stenosis is the rarest of left ventricular outflow obstructions. Data on this rare entity from India are scarce.

Methods And Results: We retrospectively analyzed the data of 15 patients (13 males, mean age 15.