• Oscar Orihuela-Rodríguez and Héctor Carmona-Ruiz.
• Instituto Mexicano del Seguro Social, Centro Médico Siglo XXI, Hospital de Especialidades, Ciudad de México, México.
• Gac Med Mex. 2019 Jan 1; 155 (3): 254-257.

IntroductionThe presence of 50 mL of fluid or more in the pericardial sac is known as pericardial effusion.ObjectiveTo determine the prevalence of pericardial effusion in patients with systemic diseases.MethodEchocardiographic studies performed at the National Medical Center Siglo XXI Specialty Hospital Cardiology Department between 2006 and 2016 were reviewed. According to Weitzman's criteria, pericardial effusion was classified as mild, < 10 mm, moderate, 10 to 20 mm and severe, > 20 mm.ResultsIn total, 10,653 studies were reviewed; the prevalence of pericardial effusion was 3.5 % (380), in 209 women (55 %, 45.9 ± 19.0 years) and 171 men (45 %, 41.9 ± 18.5 years). Etiology was uremic in 227 (59.7 %), lymphatic drainage reduction in 73 (15.8 %), autoimmune diseases in 30 (7.9 %), neoplastic in 26 (6.8 %), infectious in 19 (5 %), idiopathic in 14 (3.7 %), hypothyroidism in two (0.5 %), iatrogenic in one (0.3 %) and post-infarction in one (0.3 %). Severity was mild in 87 (22.9 %), moderate in 147 (38.7 %) and severe in 146 (38.4 %).ConclusionsThe prevalence of pericardial effusion was 3.5% in patients with systemic diseases.Copyright: © 2019 SecretarÍa de Salud.

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