{"title":"Electrophysiological Twisting: Electrical Alternans in Congenital Dilated Cardiomyopathy.","authors":"Rimsha Arif, A. Hussain, S. Dhillon","doi":"10.1161/CIRCEP.116.004953","DOIUrl":null,"url":null,"abstract":"A male infant weighing 3.5 kg with unremarkable cardiac examination developed mild oxygen desaturation. ECG showed sinus rhythm with low voltages (Figure [A]). Echocardiogram demonstrated severely dilated and echogenic left ventricle with markedly depressed biventricular systolic function (Movie I in the Data Supplement; Figure [B and C]). The late opening of mitral valve only with atrial contraction (A wave; Figure [C and H]) suggested significant diastolic dysfunction. He developed alternating normal and abnormal QRS complexes in association with hypokalemia (serum potassium 2.3–2.9 mg/dL), generating systolic blood pressure only with …","PeriodicalId":10167,"journal":{"name":"Circulation: Arrhythmia and Electrophysiology","volume":"61 1","pages":""},"PeriodicalIF":0.0000,"publicationDate":"2017-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"1","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Circulation: Arrhythmia and Electrophysiology","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1161/CIRCEP.116.004953","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 1
Abstract
A male infant weighing 3.5 kg with unremarkable cardiac examination developed mild oxygen desaturation. ECG showed sinus rhythm with low voltages (Figure [A]). Echocardiogram demonstrated severely dilated and echogenic left ventricle with markedly depressed biventricular systolic function (Movie I in the Data Supplement; Figure [B and C]). The late opening of mitral valve only with atrial contraction (A wave; Figure [C and H]) suggested significant diastolic dysfunction. He developed alternating normal and abnormal QRS complexes in association with hypokalemia (serum potassium 2.3–2.9 mg/dL), generating systolic blood pressure only with …