{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,23]],"date-time":"2026-10-23T12:43:46Z","timestamp":1792759426389,"version":"4.5.0"},"reference-count":45,"publisher":"Ovid Technologies (Wolters Kluwer Health)","issue":"20","content-domain":{"domain":["www.ahajournals.org"],"crossmark-restriction":true},"short-container-title":["Circulation"],"published-print":{"date-parts":[[2019,5,14]]},"abstract":"<jats:sec>\n            <jats:title>Background:<\/jats:title>\n            <jats:p>Polymorphic ventricular tachycardia (VT) without QT prolongation is well described in patients without structural heart disease (mainly idiopathic ventricular fibrillation and Brugada syndrome) and in patients with acute ST-elevation myocardial infarction.<\/jats:p>\n          <\/jats:sec>\n          <jats:sec>\n            <jats:title>Methods:<\/jats:title>\n            <jats:p>Retrospective study of patients with polymorphic VT related to coronary artery disease, but without evidence of acute myocardial ischemia.<\/jats:p>\n          <\/jats:sec>\n          <jats:sec>\n            <jats:title>Results:<\/jats:title>\n            <jats:p>The authors identified 43 patients in whom polymorphic VT developed within days of an otherwise uncomplicated myocardial infarction or coronary revascularization procedure. The polymorphic VT events were invariably triggered by extrasystoles with short (364\u00b136 ms) coupling interval. Arrhythmic storms (4\u201316 events of polymorphic VT deteriorating to ventricular fibrillation) occurred in 23 (53%) patients. These arrhythmic storms were always refractory to conventional antiarrhythmic therapy, including intravenous amiodarone, but invariably responded to quinidine therapy. In-hospital mortality was 17% for patients with arrhythmic storm. Patients treated with quinidine invariably survived to hospital discharge. During long-term follow-up (of 5.6\u00b16 years; range, 1 month to 18 years), 3 (16%) of patients discharged without quinidine developed recurrent polymorphic VT. There were no recurrent arrhythmias during quinidine therapy<\/jats:p>\n          <\/jats:sec>\n          <jats:sec>\n            <jats:title>Conclusions:<\/jats:title>\n            <jats:p>Arrhythmic storm with recurrent polymorphic VT in patients with coronary disease responds to quinidine therapy when other antiarrhythmic drugs (including intravenous amiodarone) fail.<\/jats:p>\n          <\/jats:sec>","DOI":"10.1161\/circulationaha.118.038036","type":"journal-article","created":{"date-parts":[[2019,1,30]],"date-time":"2019-01-30T10:02:55Z","timestamp":1548842575000},"page":"2304-2314","update-policy":"https:\/\/doi.org\/10.1161\/crossmarkpolicy","source":"Crossref","is-referenced-by-count":70,"title":["Quinidine-Responsive Polymorphic Ventricular Tachycardia in Patients With Coronary Heart Disease"],"prefix":"10.1161","volume":"139","author":[{"given":"Sami","family":"Viskin","sequence":"first","affiliation":[{"name":"Tel Aviv Sourasky Medical Center and Sackler School of Medicine, Tel Aviv University, Israel (S.V., E.C., D.V., A. 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