{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,3,23]],"date-time":"2026-03-23T18:05:45Z","timestamp":1774289145259,"version":"3.50.1"},"reference-count":0,"publisher":"Ovid Technologies (Wolters Kluwer Health)","issue":"2","content-domain":{"domain":["www.ahajournals.org"],"crossmark-restriction":true},"short-container-title":["Circulation"],"published-print":{"date-parts":[[1972,8]]},"abstract":"<jats:p>Twenty-five patients with discrete subaortic stenosis were reviewed. Twenty were operated on for severe obstruction. Review of available data suggests there is a wide spectrum of the disease which may be divided into two main types designated I and II. Type I is a thin discrete membrane immediately under the aortic valve obstructing the outflow but not associated with narrowing of it. Type II is situated about 1 cm below the valve and consists of a fibrous ring, thicker than type I, and associated with muscular hypertrophy which narrows the outflow tract, encroaches on the anterior leaflet of the mitral valve, and may extend 1-2 cm downward. Both have a characteristic angiographic appearance. Results of surgery are good for type I but not satisfactory for type II. Aortic incompetence is likely to increase or develop following operation in both types.<\/jats:p>","DOI":"10.1161\/01.cir.46.2.309","type":"journal-article","created":{"date-parts":[[2012,6,11]],"date-time":"2012-06-11T23:56:43Z","timestamp":1339459003000},"page":"309-322","update-policy":"https:\/\/doi.org\/10.1161\/crossmarkpolicy","source":"Crossref","is-referenced-by-count":126,"title":["Discrete Subaortic Stenosis"],"prefix":"10.1161","volume":"46","author":[{"given":"D. T.","family":"KELLY","sequence":"first","affiliation":[{"name":"From the Department of Pediatrics, Children's Medical and Surgical Center, The Johns Hopkins University School of Medicine and the Johns Hopkins Hospital, Baltimore, Maryland."}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"E.","family":"WULFSBERC","sequence":"additional","affiliation":[{"name":"From the Department of Pediatrics, Children's Medical and Surgical Center, The Johns Hopkins University School of Medicine and the Johns Hopkins Hospital, Baltimore, Maryland."}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"RICHARD D.","family":"ROWE","sequence":"additional","affiliation":[{"name":"From the Department of Pediatrics, Children's Medical and Surgical Center, The Johns Hopkins University School of Medicine and the Johns Hopkins Hospital, Baltimore, Maryland."}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"276","container-title":["Circulation"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/www.ahajournals.org\/doi\/pdf\/10.1161\/01.CIR.46.2.309","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2024,5,12]],"date-time":"2024-05-12T14:04:29Z","timestamp":1715522669000},"score":1,"resource":{"primary":{"URL":"https:\/\/www.ahajournals.org\/doi\/10.1161\/01.CIR.46.2.309"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[1972,8]]},"references-count":0,"journal-issue":{"issue":"2","published-print":{"date-parts":[[1972,8]]}},"alternative-id":["10.1161\/01.CIR.46.2.309"],"URL":"https:\/\/doi.org\/10.1161\/01.cir.46.2.309","relation":{},"ISSN":["0009-7322","1524-4539"],"issn-type":[{"value":"0009-7322","type":"print"},{"value":"1524-4539","type":"electronic"}],"subject":[],"published":{"date-parts":[[1972,8]]},"assertion":[{"value":"1971-10-11","order":0,"name":"received","label":"Received","group":{"name":"publication_history","label":"Publication History"}},{"value":"1972-03-24","order":1,"name":"accepted","label":"Accepted","group":{"name":"publication_history","label":"Publication History"}},{"value":"1972-08-01","order":2,"name":"published","label":"Published","group":{"name":"publication_history","label":"Publication History"}}]}}