Pericardial Windows: The Limited Diagnostic Value of Non-Targeted Pericardial Biopsy.

Background: Pericardial window, in addition to promoting pericardial drainage, can also provide samples of the pericardium for anatomopathological examination. However, such biopsies' contribution to clarifying the etiology of pericardial effusion has been debated.

Objective: To analyze the diagnostic value of non-targeted pericardial biopsy obtained from pericardial window procedures.

Coronary Artery Bypass Grafting: A Comparative Exercise between Patients from the BYPASS Registry and Patients from a University Hospital.

Introduction: The coronary artery bypass grafting (CABG) data provided by the Brazilian Registry of Cardiovascular Surgeries in Adults (BYPASS) Registry is a Brazilian reality.

Objective: To carry out a comparative exercise between the BYPASS Registry published data and data from patients operated on in a randomly chosen period (2013-2015) at Hospital das Clínicas da Faculdade de Medicina de Ribeirão Preto da Universidade de São Paulo (HCFMRP-USP).

Methods: This is a retrospective study reviewing 173 electronic medical records of CABG patients from the HCFMRP-USP.