{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2024,11,8]],"date-time":"2024-11-08T05:23:22Z","timestamp":1731043402102,"version":"3.28.0"},"reference-count":21,"publisher":"Texas Heart Institute Journal","issue":"1","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":[],"published-print":{"date-parts":[[2022]]},"abstract":"<jats:p>Frequent ventricular premature complexes (VPCs) and VPC QRS duration are risk factors for left ventricular (LV) dysfunction. To determine which clinical characteristics and electrocardiographic features are associated with LV dysfunction (ejection fraction, &lt;50%) and frequent VPCs, we retrospectively reviewed data from a single-center registry of all patients diagnosed with frequent VPCs at a Korean outpatient clinic.<\/jats:p>\n        <jats:p>We identified 412 consecutive outpatients (mean age, 54.7 \u00b1 16.8 yr; 227 women [55.1%]) who were diagnosed with frequent VPCs and had no structural heart disease from January 2010 through December 2017. Available transthoracic echocardiograms and 24-hour Holter monitoring data were evaluated to correlate the occurrence of VPCs and symptoms.<\/jats:p>\n        <jats:p>Typical VPC-related symptoms (palpitations or dropped beats) were observed in 251 patients (61.1%). Electrocardiograms revealed VPCs with a left bundle branch block\u2013like morphology in 327 patients (79.5%) and VPCs with an inferior axis in 353 (85.8%). Twenty-six patients (6.3%) were diagnosed with VPC-related LV dysfunction. The mean VPC burden did not differ significantly by LV functional status (11.06% \u00b1 10.13% [normal] vs 14.41% \u00b1 13.30% [impaired]; <jats:italic>P<\/jats:italic>=0.211). Patients with impaired LV function were more often men (<jats:italic>P<\/jats:italic>=0.027), had no typical VPC-related symptoms (<jats:italic>P<\/jats:italic>=0.006), and had significantly longer VPC QRS durations (mean, 157 ms vs 139 ms; <jats:italic>P<\/jats:italic> &lt;0.01).<\/jats:p>\n        <jats:p>Our findings suggest that male sex, absence of typical VPC-related symptoms, and a VPC QRS duration &gt;157 ms are associated with LV dysfunction in patients with frequent VPCs, findings that may be useful in predicting such dysfunction.<\/jats:p>","DOI":"10.14503\/thij-20-7265","type":"journal-article","created":{"date-parts":[[2022,2,28]],"date-time":"2022-02-28T15:06:52Z","timestamp":1646060812000},"source":"Crossref","is-referenced-by-count":0,"title":["Left Ventricular Dysfunction in Outpatients with Frequent Ventricular Premature Complexes"],"prefix":"10.14503","volume":"49","author":[{"given":"Kyoung-Min","family":"Park","sequence":"first","affiliation":[{"name":"Division of Cardiology, Department of Internal Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Sung Il","family":"Im","sequence":"additional","affiliation":[{"name":"Division of Cardiology, Department of Internal Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Sung Ho","family":"Lee","sequence":"additional","affiliation":[{"name":"Division of Cardiology, Department of Internal Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Hye Bin","family":"Gwag","sequence":"additional","affiliation":[{"name":"Division of Cardiology, Department of Internal Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Youngjun","family":"Park","sequence":"additional","affiliation":[{"name":"Division of Cardiology, Department of Internal Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Seung-Jung","family":"Park","sequence":"additional","affiliation":[{"name":"Division of Cardiology, Department of Internal Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"June Soo","family":"Kim","sequence":"additional","affiliation":[{"name":"Division of Cardiology, Department of Internal Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Young Keun","family":"On","sequence":"additional","affiliation":[{"name":"Division of Cardiology, Department of Internal Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"5628","reference":[{"issue":"2","key":"i1526-6702-49-1-e207265-b1","series-title":"Am J Cardiol","first-page":"151","article-title":"Relation of atrial and\/or ventricular premature complexes on a two-minute rhythm strip to the risk of sudden cardiac death (the Atherosclerosis Risk In Communities [ARIC] study)","volume":"107","year":"2011","unstructured":"Cheriyath\n              P,\n            \n            \n              He\n              F,\n            \n            \n              Peters\n              I,\n            \n            \n              Li\n              X,\n            \n            \n              Alagona\n              P\n              Jr,\n            \n            \n              Wu\n 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    M,\n            \n            \n              Bozkurt\n              B,\n            \n            \n              Butler\n              J,\n            \n            \n              Casey\n              DE\n              Jr,\n            \n            \n              Drazner\n              MH,\n            \n          \n          .\n\t\t\t\t\t2013 ACCF\/AHA guideline for the management of heart failure: executive summary: a report of the American College of Cardiology Foundation\/American Heart Association Task Force on Practice Guidelines.\n\t\t\t\t\tCirculation2013;128(16):1810\u201352."},{"issue":"11","key":"i1526-6702-49-1-e207265-b11","series-title":"J Am Coll Cardiol","first-page":"992","article-title":"AHA\/ACCF\/HRS recommendations for the standardization and interpretation of the electrocardiogram: part V: electrocardiogram changes associated with cardiac chamber hypertrophy: a scientific statement from the American Heart Association Electrocardiography and Arrhythmias Committee, Council on Clinical Cardiology; the American College of Cardiology Foundation; and the Heart Rhythm Society. Endorsed by the International Society for Computerized Electrocardiology","volume":"53","year":"2009","unstructured":"Hancock\n              EW,\n            \n            \n              Deal\n              BJ,\n            \n            \n              Mirvis\n              DM,\n            \n            \n              Okin\n              P,\n            \n            \n              Kligfield\n              P,\n            \n            \n              Gettes\n              LS,\n            \n          \n          .\n\t\t\t\t\tAHA\/ACCF\/HRS recommendations for the standardization and interpretation of the electrocardiogram: part V: electrocardiogram changes associated with cardiac chamber hypertrophy: a scientific statement from the American Heart Association Electrocardiography and Arrhythmias Committee, Council on Clinical Cardiology; the American College of Cardiology Foundation; and the Heart Rhythm Society. Endorsed by the International Society for Computerized Electrocardiology.\n\t\t\t\t\tJ Am Coll Cardiol2009;53(11):992\u20131002."},{"issue":"7","key":"i1526-6702-49-1-e207265-b12","series-title":"J Cardiovasc Electrophysiol","first-page":"791","article-title":"Characteristics of premature ventricular complexes as correlates of reduced left ventricular systolic function: study of the burden, duration, coupling interval, morphology and site of origin of PVCs","volume":"22","year":"2011","unstructured":"Del Carpio Munoz\n              F,\n            \n            \n              Syed\n              FF,\n            \n            \n              Noheria\n              A,\n            \n            \n              Cha\n              YM,\n            \n            \n              Friedman\n              PA,\n            \n            \n              Hammill\n              SC,\n            \n          \n          .\n\t\t\t\t\tCharacteristics of premature ventricular complexes as correlates of reduced left ventricular systolic function: study of the burden, duration, coupling interval, morphology and site of origin of PVCs.\n\t\t\t\t\tJ Cardiovasc Electrophysiol2011;22(7):791\u20138."},{"issue":"9","key":"i1526-6702-49-1-e207265-b13","series-title":"Heart Rhythm","first-page":"1460","article-title":"Impact of QRS duration of frequent premature ventricular complexes on the development of cardiomyopathy","volume":"9","year":"2012","unstructured":"Yokokawa\n              M,\n            \n            \n              Kim\n              HM,\n            \n            \n              Good\n              E,\n            \n            \n              Crawford\n              T,\n            \n            \n              Chugh\n              A,\n            \n            \n              Pelosi\n              F\n              Jr,\n            \n          \n          .\n\t\t\t\t\tImpact of QRS duration of frequent premature ventricular complexes on the development of cardiomyopathy.\n\t\t\t\t\tHeart Rhythm2012;9(9):1460\u20134."},{"issue":"5","key":"i1526-6702-49-1-e207265-b14","series-title":"Europace","first-page":"735","article-title":"Electrocardiographic and electrophysiological characteristics of premature ventricular complexes associated with left ventricular dysfunction in patients without structural heart disease","volume":"15","year":"2013","unstructured":"Ban\n              JE,\n            \n            \n              Park\n              HC,\n            \n            \n              Park\n              JS,\n            \n            \n              Nagamoto\n              Y,\n            \n            \n              Choi\n              JI,\n            \n            \n              Lim\n              HE,\n            \n          \n          .\n\t\t\t\t\tElectrocardiographic and electrophysiological characteristics of premature ventricular complexes associated with left ventricular dysfunction in patients without structural heart disease.\n\t\t\t\t\tEuropace2013;15(5):735\u201341."},{"issue":"18","key":"i1526-6702-49-1-e207265-b15","series-title":"Circulation","first-page":"1837","article-title":"Prediction of coronary heart disease using risk factor categories","volume":"97","year":"1998","unstructured":"Wilson\n              PW,\n            \n            \n              D'Agostino\n              RB,\n            \n            \n              Levy\n              D,\n            \n            \n              Belanger\n              AM,\n            \n            \n              Silbershatz\n              H,\n            \n            \n              Kannel\n              WB.\n            \n          \n          Prediction of coronary heart disease using risk factor categories.\n\t\t\t\t\tCirculation1998;97(18):1837\u201347."},{"issue":"2","key":"i1526-6702-49-1-e207265-b16","series-title":"J Am Coll Cardiol","first-page":"231","article-title":"Prognostic significance of ventricular ectopic activity in survivors of acute myocardial infarction","volume":"10","year":"1987","unstructured":"Kostis\n              JB,\n            \n            \n              Byington\n              R,\n            \n            \n              Friedman\n              LM,\n            \n            \n              Goldstein\n              S,\n            \n            \n              Furberg\n              C.\n            \n          \n          Prognostic significance of ventricular ectopic activity in survivors of acute myocardial infarction.\n\t\t\t\t\tJ Am Coll Cardiol1987;10(2):231\u201342."},{"issue":"6","key":"i1526-6702-49-1-e207265-b17","series-title":"J Cardiovasc Electrophysiol","first-page":"663","article-title":"Tachycardia-induced cardiomyopathy in patients with idiopathic ventricular arrhythmias: the incidence, clinical and electrophysiologic characteristics, and the predictors","volume":"22","year":"2011","unstructured":"Hasdemir\n              C,\n            \n            \n              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