| Abstract: | Stumptailed macaques (Macaca arctoides) were evaluated as to their suitability as an animal model for pulmonary hypertension. Animals used for this study were colony-bred. Necropsy material from 63 animals revealed 32% with severe medial thickening of pulmonary arteries. Twenty-nine stumptailed macaques underwent cardiac catheterization and M-mode echocardiography. Hemodynamic measurement including pulmonary artery pressure response to 12% oxygen exposure identified three groups of animals with elevated, normal, and intermediate pulmonary artery pressures. Stumptailed macaques with elevated pulmonary artery pressure could be distinguished from other animals by echocardiography. |
