e-ISSN 2329-0072

Logo

Medical
MSM  BR

AmJCaseRep

Influence of VVI and DDD pacing on heart morphology and function in patients with permanent complete atrio-ventricular block – 7 years follow up

Krzysztof Kaczmarek, Jerzy Krzysztof Wranicz, Paweł Ptaszyński, Marzenna Zielińska

Med Sci Tech 2008; 49(3): RA169-172

ID: 881610

Available online:

Published: 2008-03-21


Introduction: The long term effect of VVI and DDD pacing is controversial. The superiority of DDD systems in synchronization of atrial to ventricular beats is unquestionable. However, the long term advantage of the DDD mode in terms of heart morphology and function is still under investigations. Material and methods: 60 patients, 40 women, with pacemaker implanted due to permanent complete atrio-ventricular block were included to the study. The lack of any other cardiovascular disorders was the main inclusion criterion. Half of the study group had VVI pacemaker implanted, and the rest received DDD systems. Transthoracic echocardiography was performed just after implantation and on the end of follow-up (7 years later). Results: Significant enlargement of left atrium was observed in patients with VVI pacemakers (3,88±0,53 cm to 4,44±0,77cm, p<0,001). Other echocardiographic parameters remained unchanged. Conclusions: Neither VVI nor DDD long term permanent pacing deteriorates left and right ventricle echocardiographic parameters in patients with complete atrio-ventricular block and no other cardiovascular disorders. Permanent VVI pacing may provoke enlargement of left atrium. (Clin Exp Med Lett 2008; 49(3): 169-172)

Keywords: Complete atrioventricular heart block, VVI, DDD,, pacing, Echocardiography



Back