Efficacy and safety of a single-use cholangioscope for percutaneous transhepatic cholangioscopy.

Percutaneous transhepatic cholangioscopy (PTCS) is a management option for patients in whom peroral cholangioscopy or endoscopic retrograde cholangiopancreatography (ERCP) fail. We conducted a case series on the efficacy and safety of PTCS using a cholangiopancreatoscope cleared by the US Food and Drug Administration in 2020. Fifty adult patients scheduled for PTCS or other cholangioscopic procedure were enrolled at seven academic medical centers and followed for 30 days after the index procedure.

Cardio-Pulmonary Histopathology with Clinical Correlations of Deceased Patients with COVID-19: A Case Series in Tehran, Iran.

Background: SARS-CoV-2 may affect vital organs. The present study investigated the histopathology of pulmonary and cardiac tissues with clinical correlation in deceased patients with COVID-19.

Methods: We obtained pulmonary and cardiac tissues from 30 deceased patients with COVID-19 in Tehran, Iran, from January to May 2021.

Neuropathology of 30 deceased patients with COVID-19: a case series in Tehran, Iran.

Unlabelled: Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) can affect the nervous system and result in neurological symptoms. The most common feature of central nervous system involvement is hypoxia and congestion. This study aimed to evaluate the histopathology of cerebral tissue in deceased patients with coronavirus disease 2019 (COVID-19).