{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,8,18]],"date-time":"2026-08-18T01:53:11Z","timestamp":1787017991823,"version":"build-2736575974"},"reference-count":0,"publisher":"Ovid Technologies (Wolters Kluwer Health)","issue":"5","content-domain":{"domain":["www.ahajournals.org"],"crossmark-restriction":true},"short-container-title":["Circulation"],"published-print":{"date-parts":[[1952,5]]},"abstract":"<jats:p>A short A-V conduction time, whether present with normal or with abnormal QRS complex, is associated with an increased incidence of paroxysmal rapid heart action. There are a considerable number of patients who have a short P-R interval, normal QRS complex and bouts of tachycardia. They are usually females, in middle life, devoid of organic heart disease and exhibit a snapping apical first heart sound. They do not demonstrate any of the features of anomalous A-V conduction. Evidence is presented suggesting the operation of endocrine and autonomic nervous system factors in the genesis both of the short P-R interval and the tachycardia.<\/jats:p>","DOI":"10.1161\/01.cir.5.5.693","type":"journal-article","created":{"date-parts":[[2012,6,11]],"date-time":"2012-06-11T19:15:32Z","timestamp":1339442132000},"page":"693-706","update-policy":"https:\/\/doi.org\/10.1161\/crossmarkpolicy","source":"Crossref","is-referenced-by-count":213,"title":["The Syndrome of Short P-R Interval Normal QRS Complex and Paroxysmal Rapid Heart Action"],"prefix":"10.1161","volume":"5","author":[{"given":"BERNARD","family":"LOWN","sequence":"first","affiliation":[{"name":"From the Medical Clinic of the Peter Bent Brigham Hospital and the Department of Medicine, Harvard School of Medicine, Boston, Mass."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"WILLIAM F.","family":"GANONG","sequence":"additional","affiliation":[{"name":"From the Medical Clinic of the Peter Bent Brigham Hospital and the Department of Medicine, Harvard School of Medicine, Boston, Mass."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"SAMUEL A.","family":"LEVINE","sequence":"additional","affiliation":[{"name":"From the Medical Clinic of the Peter Bent Brigham Hospital and the Department of Medicine, Harvard School of Medicine, Boston, Mass."}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"276","container-title":["Circulation"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/www.ahajournals.org\/doi\/pdf\/10.1161\/01.CIR.5.5.693","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2024,5,12]],"date-time":"2024-05-12T10:11:48Z","timestamp":1715508708000},"score":1,"resource":{"primary":{"URL":"https:\/\/www.ahajournals.org\/doi\/10.1161\/01.CIR.5.5.693"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[1952,5]]},"references-count":0,"journal-issue":{"issue":"5","published-print":{"date-parts":[[1952,5]]}},"alternative-id":["10.1161\/01.CIR.5.5.693"],"URL":"https:\/\/doi.org\/10.1161\/01.cir.5.5.693","relation":{},"ISSN":["0009-7322","1524-4539"],"issn-type":[{"value":"0009-7322","type":"print"},{"value":"1524-4539","type":"electronic"}],"subject":[],"published":{"date-parts":[[1952,5]]},"assertion":[{"value":"1952-05-01","order":2,"name":"published","label":"Published","group":{"name":"publication_history","label":"Publication History"}}]}}