Gelberg H B, Smetzer D L, Foreman J H
Department of Veterinary Pathobiology, College of Veterinary Medicine, University of Illinois, Urbana 61801.
J Am Vet Med Assoc. 1991 Feb 15;198(4):679-82.
Four young horses of various breeds and suffering from atrial fibrillation died of heart failure. All had markedly high pulmonary arterial pressure, right-sided cardiomegaly, and lack of histologic lesions in the right atrium or pulmonary parenchyma. Three horses had hypertrophy and/or necrosis of the tunica media of the pulmonary vasculature. Clinical signs of disease, physiologic data, and pathologic findings indicated that these horses had primary pulmonary hypertension with secondary right-sided cardiac ventricular hypertrophy and dilatation, atrial fibrillation, and heart failure.
四匹不同品种且患有心房颤动的幼马死于心力衰竭。所有马匹均有明显的肺动脉高压、右心扩大，且右心房或肺实质无组织学病变。三匹马的肺血管中膜有肥大和/或坏死。疾病的临床症状、生理数据和病理结果表明，这些马匹患有原发性肺动脉高压，并伴有继发性右心室肥大、扩张、心房颤动和心力衰竭。
