Brazilian Registry of Interventional Cardiology during the COVID-19 Pandemic (RBCI-COVID19).

Background: At the beginning of the COVID-19 pandemic, patients with myocardial infarction (MI) took longer to present to hospitals because of fear of contamination and health care access difficulties.

Objectives: To assess interventional cardiology procedures performed during the COVID-19 pandemic and its implications for MI approach.

Methods: Prospective registry of 24 cardiac catheterization laboratories in Brazil, with adult patients undergoing interventional cardiology procedures between May 26 and November 30, 2020.

Predictors of coronary stent thrombosis: a case-control study.

To verify the frequency and predictors associated with stent thrombosis (ST) in a developing country. Observational, case-control study including 2535 consecutive patients undergoing percutaneous coronary intervention (PCI) in two reference hospitals in Brazil, from October 2013 to December 2015. ST patients were matched to controls in a 1:3 ratio for gender, age, procedure indication, and performing hospital.

[Pulmonary hypertension associated with acquired immunodeficiency syndrome: presentation of five cases and review of the literature].

Several cardiorespiratory diseases may complicate the acquired immunodeficiency syndrome. Pulmonary hypertension is a rare clinical disorder with a poor prognosis. We describe this syndrome in five patients seen at our service who presented infection with the acquired immunodeficiency virus, and we review the literature.