J. Liakopoulos, Oliver and Tomioka, Hideyuki and D. Buckberg, Gerald and Tan, Zhongtuo and Hristov, Nikola and Trummer, Georg (2006) Sequential deformation and physiological considerations in unipolar right or left ventricular pacing. European Journal of Cardio-thoracic Surgery (295). s188-s197.
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Abstract
Objective: To determine the effects of ventricular pacing on the normal contraction sequence of the helical ventricular myocardial band, and
its’ impact on left ventricular function. Methods: Ten pigs (25—68 kg) underwent analysis of percent segmental shortening (%SS) by
sonomicrometry, with crystals placed along the fiber orientation of the ascending and descending segments, and posterior LV wall of the
geometry of the helical heart. Unipolar pacing electrodes stimulated either the right atrium (RA), right ventricular apex (RVA) and outflow tract
(RVOT), or posterior LV wall. Systemic hemodynamics, QRS-interval, cardiac index (CI), systolic and diastolic LV function and pressure—dimension
(P—D) loops were analyzed and cardiac motion was monitored by video analysis.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | Ventricular pacing; Helical myocardial ventricular band; Ventricular function; Helical heart; Sonomicrometry |
| Subjects: | Medical and Health Sciences > Basic medicine Medical and Health Sciences > Clinical medicine |
| Divisions: | Faculty of Medical Science |
| Depositing User: | Mirjana Kocaleva Vitanova |
| Date Deposited: | 20 Mar 2013 11:12 |
| Last Modified: | 04 Nov 2013 13:28 |
| URI: | https://eprints.ugd.edu.mk/id/eprint/5919 |
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