Catalogo Articoli (Spogli Riviste)

OPAC HELP

Titolo:
Direct cardiac potential trigger for chronic control of a ventricular assist device
Autore:
Kitamura, M; Hanzawa, K; Aoki, K; Saitoh, M; Hayashi, J;
Indirizzi:
Niigata Univ, Sch Med, Dept Surg 2, Niigata 9518510, Japan Niigata Univ Niigata Japan 9518510 , Dept Surg 2, Niigata 9518510, Japan
Titolo Testata:
ASAIO JOURNAL
fascicolo: 3, volume: 47, anno: 2001,
pagine: 302 - 304
SICI:
1058-2916(200105/06)47:3<302:DCPTFC>2.0.ZU;2-L
Fonte:
ISI
Lingua:
ENG
Soggetto:
DILATED CARDIOMYOPATHY; CLINICAL-EXPERIENCE; TRANSPLANTATION; SUPPORT; BRIDGE; SYSTEM;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Clinical Medicine
Citazioni:
12
Recensione:
Indirizzi per estratti:
Indirizzo: Kitamura, M Niigata Univ, Sch Med, Dept Surg 2, 1-757 Asahimachidori, Niigata 9518510,Japan Niigata Univ 1-757 Asahimachidori Niigata Japan 9518510 Japan
Citazione:
M. Kitamura et al., "Direct cardiac potential trigger for chronic control of a ventricular assist device", ASAIO J, 47(3), 2001, pp. 302-304

Abstract

As a new trigger method for chronic drive control of a ventricular assist device (VAD), a direct cardiac potential trigger was assessed under variousconditions in a chronic experimental model. A pneumatic pulsatile VAD was implanted as circulatory support between the left ventricular apex and the ascending aorta in 12 adult pigs. Hemodynamic parameters and pump output were continuously monitored. Two tips of a bipolar electrode were set on the RV anterior wall and the LV posterior wall for recording direct cardiac potential. Counterpulsation drive of the VAD was applied by using the R wave in a standard electrocardiogram (ECC) or the direct cardiac potential as an ECG trigger. As special conditions, various artifacts on ECC, electromusculogram, arrhythmia, irregular ventilation, and passive vibration (simulationof exercise) were set for assessing the ECG trigger modes. Artifacts of irregular ventilation and passive vibration made the drive control poor usinga standard ECG trigger. In contrast, the direct cardiac potential trigger maintained the counterpulsation control of the VAD well in all conditions of this study, and was a safe and reliable support for the native heart. It also supported animals for up to 48 hours after operation. The above results suggested that the direct cardiac potential trigger might be useful for monitoring native heart beats and adjusting the support cycle to the native heart cycle as a chronic control method for various VADs.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 04/12/20 alle ore 09:21:54