title: Hemodynamic and pulmonary studies in pulmonary alveolar microlithiasis.
abstract: A 34-year-old woman with biopsy-proved pulmonary alveolar microlithiasis is described. Cardiac catheterization data and results of pulmonary function studies are presented. Mild to moderate pulmonary hypertension occurred with supine leg exercise, possibly reflecting a reduced capacity of the vascular bed evident only with increased pulmonary blood flow and tachycardia. Attention should be paid to the level of physical activity in patients with this disease, particularly if the vital capacity is reduced below 80 percent of that predicted.
mesh_terms: D000328:Adult; D002114:Calcinosis / Q000503:physiopathology*; D006328:Cardiac Catheterization; D005260:Female; D006439:Hemodynamics; D006801:Humans; D008168:Lung / Q000503:physiopathology*; D008171:Lung Diseases / Q000503:physiopathology*; D011650:Pulmonary Alveoli; D011652:Pulmonary Circulation; D012129:Respiratory Function Tests; D014797:Vital Capacity