Kazan medical journalKazan medical journal0368-48142587-9359Eco-Vector6007510.17816/kazmj60075Research ArticleOn the intravital diagnosis of the subaortic stenosis of the heartZlochevskyP. M.<p>4th Department of Therapy, functional diagnostics room</p>info@eco-vector.comCentral Clinical Hospital IPU1403196546247490502202105022021Copyright © 1965, Zlochevsky P.M.1965<p id="tw-target-text" class="tw-data-text tw-text-large XcVN5d tw-ta" dir="ltr" data-placeholder="Перевод"><span lang="en">About a hundred years ago, the first monograph (K.A. Rauchfus, 1869) appeared on the congenital pathology of the aortic mouth with a description of 25 observations, including 10 of his own. Materials of recent years refute the idea of a great rarity of valvular and subvalvular stenosis of the aorta (7.4% of all congenital anomalies according to LD Krymsky, 1962). Subortal narrowing can have a different structure (A. L. Mikaelyan and L. A. Semenova, 1963), but is usually formed by a connective tissue membrane or fibromuscular crest. Being the result of a violation of the evolution of the embryonic bulb, with a relatively small size, it is clinically asymptomatic and can be first established in adulthood (Yonash, 1960; and others).</span></p>Kazan Medical archiveКазанский медицинский архив