M. C. P.
During recent years in which clinicians in the United States have become interested in the syndrome of right heart failure, the causes of increased resistance to the pulmonary circulation have been restudied. The problem is a fascinating one because we possess as yet no direct method of measuring the pressures in the pulmonic arteries or veins and must proceed largely through indirect means.
Our basic information we owe to the postmortem observations of disproportionate hypertrophy and dilatation of the right ventricle in certain lesions of the lungs which would apparently entail a diminution in the pulmonary vascular bed; for example,
P. MC. OBSCURE FORMS OF SUBACUTE COR PULMONALE. Ann Intern Med. ;13:899–901. doi: 10.7326/0003-4819-13-5-899
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Published: Ann Intern Med. 1939;13(5):899-901.
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