{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,9,27]],"date-time":"2025-09-27T08:26:28Z","timestamp":1758961588740},"reference-count":14,"publisher":"Oxford University Press (OUP)","issue":"923","license":[{"start":{"date-parts":[[2002,9,1]],"date-time":"2002-09-01T00:00:00Z","timestamp":1030838400000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/academic.oup.com\/pages\/standard-publication-reuse-rights"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":[],"published-print":{"date-parts":[[2002,9,1]]},"abstract":"<jats:title>Abstract<\/jats:title>\n               <jats:p>A 61 year old man developed acute pulmonary embolism while in hospital. His previous and admission electrocardiograms (ECGs) showed a typical left bundle branch block (LBBB) pattern. Immediately after the onset of acute pulmonary embolism, LBBB disappeared from his body surface ECG with sinus bradycardia, normalisation of QRS duration, prolonged QT interval, and marked T abnormalities to the right precordial leads. Recovery from pulmonary embolism resulted in reappearance of his left bundle branch pattern. Delayed conduction of the previously unaffected right bundle branch resulting in roughly equivalent onset of ventricular activation is the most likely reason. Rate dependent LBBB is also discussed.<\/jats:p>","DOI":"10.1136\/pmj.78.923.555","type":"journal-article","created":{"date-parts":[[2002,9,30]],"date-time":"2002-09-30T17:42:16Z","timestamp":1033407736000},"page":"555-558","source":"Crossref","is-referenced-by-count":4,"title":["Transient disappearance of left bundle branch block pattern: an unusual ECG presentation of acute pulmonary embolism"],"prefix":"10.1093","volume":"78","author":[{"given":"S M","family":"Athar","sequence":"first","affiliation":[{"name":"Medical Assessment Unit, Russells Hall Hospital , Dudley DY1 2HQ , UK"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"B S P","family":"Chin","sequence":"additional","affiliation":[{"name":"Medical Assessment Unit, Russells Hall Hospital , Dudley DY1 2HQ , UK"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"E J","family":"Flint","sequence":"additional","affiliation":[{"name":"Cardiology Department, Russells Hall Hospital , Dudley DY1 2HQ , UK"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"286","published-online":{"date-parts":[[2002,9,1]]},"reference":[{"key":"2023042417003416300_R1","doi-asserted-by":"crossref","first-page":"409","DOI":"10.1016\/S0033-0620(64)80001-3","article-title":"Etiology and pathology of bilateral bundle branch block in relation to complete heart block","volume":"6","author":"Lenegre","year":"1964","journal-title":"Prog Cardiovasc Dis"},{"key":"2023042417003416300_R2","doi-asserted-by":"crossref","first-page":"593","DOI":"10.1016\/0002-8703(61)90630-5","article-title":"Pathology of the conduction system in acquired heart disease: complete right bundle branch block","volume":"61","author":"Lev","year":"1961","journal-title":"Am Heart J"},{"key":"2023042417003416300_R3","doi-asserted-by":"crossref","first-page":"728","DOI":"10.1016\/S0002-8703(45)90445-5","article-title":"Delayed conduction in the bundle branches","volume":"29","author":"Dressler","year":"1945","journal-title":"Am Heart J"},{"key":"2023042417003416300_R4","doi-asserted-by":"crossref","first-page":"730","DOI":"10.1161\/01.CIR.29.5.730","article-title":"Transient bundle branch block","volume":"29","author":"Bauer","year":"1964","journal-title":"Circulation"},{"key":"2023042417003416300_R5","doi-asserted-by":"crossref","first-page":"548","DOI":"10.1016\/0002-8703(61)90556-7","article-title":"Mechanisms influencing conduction in a case of intermittent bundle branch block","volume":"61","author":"Wallace","year":"1961","journal-title":"Am Heart J"},{"key":"2023042417003416300_R6","doi-asserted-by":"crossref","first-page":"675","DOI":"10.1016\/0002-8703(81)90092-2","article-title":"Tachycardia-dependent and bradycardia-dependent intraventricular conduction defects in acute myocardial infarction: electrocardiographic, electrophysiologic and clinical correlates","volume":"102","author":"Tavazzi","year":"1981","journal-title":"Am Heart J"},{"key":"2023042417003416300_R7","doi-asserted-by":"crossref","first-page":"653","DOI":"10.1136\/hrt.36.7.653","article-title":"Electrophysiological studies in patients with rate-related intermittent left bundle branch block","volume":"36","author":"Canon","year":"1974","journal-title":"Br Heart J"},{"key":"2023042417003416300_R8","doi-asserted-by":"crossref","first-page":"474","DOI":"10.1378\/chest.120.2.474","article-title":"Assessment of cardiac stress from massive pulmonary embolism with 12-lead ECG","volume":"120","author":"Daniel","year":"2001","journal-title":"Chest"},{"key":"2023042417003416300_R9","doi-asserted-by":"crossref","first-page":"760","DOI":"10.1016\/0002-8703(59)90236-4","article-title":"Transient bundle branch block occurring during slowing of the heart beat and following gagging","volume":"38","author":"Dressler","year":"1959","journal-title":"Am Heart J"},{"key":"2023042417003416300_R10","doi-asserted-by":"crossref","first-page":"38","DOI":"10.1016\/0002-8703(55)90252-0","article-title":"Bilateral bundle branch block","volume":"50","author":"Rosenbaum","year":"1955","journal-title":"Am Heart J"},{"key":"2023042417003416300_R11","doi-asserted-by":"crossref","first-page":"55","DOI":"10.7326\/0003-4819-89-1-55","article-title":"A characteristic repolarization abnormality with intermittent left bundle-branch block","volume":"89","author":"Denes","year":"1978","journal-title":"Ann Intern Med"},{"key":"2023042417003416300_R12","doi-asserted-by":"crossref","first-page":"66","DOI":"10.1177\/000331978003100110","article-title":"T-wave changes with intermittent left bundle branch block","volume":"31","author":"Gould","year":"1980","journal-title":"Angiology"},{"key":"2023042417003416300_R13","first-page":"230","volume-title":"Practical electrocardiography","author":"Marriot","year":"1984","edition":"7th"},{"key":"2023042417003416300_R14","doi-asserted-by":"crossref","first-page":"289","DOI":"10.1378\/chest.63.2.289","article-title":"Normalization of prolonged IV conduction time in a patient with acute pulmonary embolism","volume":"63","author":"Obeid","year":"1973","journal-title":"Chest"}],"container-title":["Postgraduate Medical Journal"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/academic.oup.com\/pmj\/article-pdf\/78\/923\/555\/50041279\/postgradmedj-78-555.pdf","content-type":"application\/pdf","content-version":"vor","intended-application":"syndication"},{"URL":"https:\/\/academic.oup.com\/pmj\/article-pdf\/78\/923\/555\/50041279\/postgradmedj-78-555.pdf","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2023,4,24]],"date-time":"2023-04-24T17:01:24Z","timestamp":1682355684000},"score":1,"resource":{"primary":{"URL":"https:\/\/academic.oup.com\/pmj\/article\/78\/923\/555\/7045887"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2002,9,1]]},"references-count":14,"journal-issue":{"issue":"923","published-online":{"date-parts":[[2002,9,1]]},"published-print":{"date-parts":[[2002,9,1]]}},"URL":"https:\/\/doi.org\/10.1136\/pmj.78.923.555","relation":{},"ISSN":["0032-5473","1469-0756"],"issn-type":[{"value":"0032-5473","type":"print"},{"value":"1469-0756","type":"electronic"}],"subject":[],"published-other":{"date-parts":[[2002,9]]},"published":{"date-parts":[[2002,9,1]]}}}