ECG-triggered skeletal muscle stimulation improves hemodynamics and physical performance of heart failure patients

Lapanashvili, L; Buziashvili, Y I; Matskeplishvili, S T; Lobjanidze, T G; Bockeria, L A; Huber, P P; Hess, O M; Walpoth, B H (2008). ECG-triggered skeletal muscle stimulation improves hemodynamics and physical performance of heart failure patients. International journal of artificial organs, 31(3), pp. 244-51. Milano: Wichtig Editore

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BACKGROUND: Muscular counterpulsation (MCP) was developed for circulatory assistance by stimulation of peripheral skeletal muscles. We report on a clinical MCP study in patients with and without chronic heart failure (CHF). METHODS AND RESULTS: MCP treatment was applied (30 patients treated, 25 controls, all under optimal therapy) for 30 minutes during eight days by an ECG-triggered, battery-powered, portable pulse generator with skin electrodes inducing light contractions of calf and thigh muscles, sequentially stimulated at early diastole. Hemodynamic parameters (ECG, blood pressure and echocardiography) were measured one day before and one day after the treatment period in two groups: Group 1 (9 MCP, 11 no MCP) with ejection fraction (EF) above 40% and Group 2 (21 MCP, 14 no MCP) below 40%. In Group 2 (all patients suffering from CHF) mean EF increased by 21% (p<0.001) and stroke volume by 13% (p<0.001), while end systolic volume decreased by 23% (p<0.001). In Group 1, the increase in EF (6%) and stroke volume (8%) was also significant (p<0.05) but less pronounced than in Group 2. Physical exercise duration and walking distance increased in Group 2 by 56% and 72%, respectively. CONCLUSIONS: Noninvasive MCP treatment for eight days substantially improves cardiac function and physical performance in patients with CHF.

Item Type:

Journal Article (Original Article)

Division/Institute:

04 Faculty of Medicine > Department of Cardiovascular Disorders (DHGE) > Clinic of Cardiology

UniBE Contributor:

Hess, Otto

ISSN:

0391-3988

ISBN:

18373318

Publisher:

Wichtig Editore

Language:

English

Submitter:

Factscience Import

Date Deposited:

04 Oct 2013 15:02

Last Modified:

04 May 2014 23:18

PubMed ID:

18373318

Web of Science ID:

000255465800007

URI:

https://boris.unibe.ch/id/eprint/26959 (FactScience: 99218)

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