![]() 1073-1081Īge Heart Failure QRS width Left bundle branch block Intraventricular conduction delay Epidemiology Cardiac resynchronization therapy National CategoryĬlinical Medicine Identifiers URN: urn:nbn:se:liu:diva-112312 DOI: 10.1002/ejhf.162 ISI: 000343757300005 PubMedID: 25201219 OAI: oai:DiVA. Place, publisher, year, edition, pagesOxford University Press (OUP): Policy B / Wiley, 2014. An implantable cardioverter-defibrillator (ICD) is a small battery-powered device placed in the chest to detect and stop irregular heartbeats (arrhythmias). The underutilization of CRT was worse with increasing age. ConclusionsBoth IVCD and LBBB were more common with increasing age and were similarly strong independent predictors of mortality and in all ages. In particular, IVCD in a 12-lead ECG carries a substantial risk of subsequent cardiac death and sudden arrhythmic death, and its presence should alert physicians to the need for a careful evaluation, including echocardiography, of subclinical heart disease even in asymptomatic subjects. A superior P wave axis means that the atrial activation is proceeding from below upwards. ![]() The researchers confirm that an enlarged left atrium is an independent risk factor for A-Fib, much like strokes and. 4% and absent but with indication in 23% vs. ECG showing negative P waves in inferior leads II, III and aVF. Based on the results, people with enlarged left atriums were 60 more likely to develop A-Fib and those with a severely enlarged atrium were four times more likely to develop A-Fib than people with normal heart chambers. Causes of IVCD Coronary heart disease Hypertensive heart disease Severe valvular heart. Thin wires connect the ICD to your heart. Idiopathic in patients with structurally normal hearts. In the three age groups, CRT was present in 6% vs. An ICD is a battery-powered device placed under the skin that keeps track of your heart rate. The adjusted P for interaction between age and QRS morphology was 0.664. The multivariable hazard ratio (HR) for all-cause mortality over a median (interquartile range) follow-up of 29 (12-53) months for IVCD vs. Among 13782 patients without CRT, IVCD was present in the three age groups in 11% vs. ![]() Methods and resultsWe studied 14713 patients with ejection fraction 39% in the Swedish Heart Failure Registry and divided into age groups 65years, 66-80years and greater than80years. We tested the hypotheses that in the elderly: (i) IVCD and LBBB are more prevalent, (ii) IVCD and LBBB are more harmful, and (iii) CRT is underutilized. 1073-1081 Article in journal (Refereed) Published Abstract ĪimsAge is not a contraindication to cardiac resynchronization therapy (CRT), but the prevalence and prognostic impact of QRS prolongation with intraventricular conduction delay (IVCD) and left bundle branch block (LBBB), as well as CRT utilization, may differ with age. Show others and affiliations 2014 (English) In: European Journal of Heart Failure, ISSN 1388-9842, E-ISSN 1879-0844, Vol.
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