Material and methodsThis was a cross-sectional study with retrospective collection on the records of patients hospitalized in the cardiology department of the University Hospital Center Yalgado OUEDRAOGO (CHU-YO), in the city of Ouagadougou in Burkina Faso.Were included in our study, the patient records hospitalized for acute pericarditis during the period from January 1, 2014 to December 31, 2018, that is to say duration of 5 years with or without liquid effusion; without distinction of race or sex. Patients hospitalized for recurrent pericarditis were not included in the study. Data were collected from the hospitalization registers of the cardiology department of the UHC-YO, the patients' medical records, and the hospital's statistical yearbooks. The data were recorded on survey forms. A systematic review of the records of patients hospitalized for acute pericarditis during the entire study period was conducted.Socio-demographic data, medical and surgical history, clinical data, paraclinical data including diagnostic confirmation elements at trans thoracic Doppler echocardiography, chest X-ray, electrocardiogram and biological tests were systematically searched in the files.Acute pericarditis, myopericarditis, confirmed tuberculous pericarditis, probable tuberculous pericarditis, HIV-related pericarditis, viral pericarditis were evoked using the clinical, electrocardiographic and echocardiographic criteria defined by the European Society of Cardiology (ESC). 1 The diagnosis of acute pericarditis was made on the basis of the presence of at least 2 of the following 4 criteria: Pericardial chest pain; Pericardial friction; New diffuse ST elevation or PQ undershift on electrocardiogram (ECG); Pericardial effusion (new or worsening). 1