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Titolo:
FLUCTUATIONS OF THE SYMPATHETIC-NERVE DISCHARGES IN ANIMALS WITHOUT NATURAL HEARTBEAT
Autore:
YAMBE T; NITTA S; NAGANUMA S; KAKINUMA Y; ZUTSU K; AKIHO H; NAGANUMA T; KIKUCHI Y; KOBAYASHI S; OHSAWA N; NANKA S; TANAKA M; FUKUJU T; MIURA M; UCHIDA N; SATO N; MOHRI H; KOIDE S; ABE K; TAKEDA H; YOSHIZAWA M;
Indirizzi:
TOHOKU UNIV,INST DEV AGING & CANC,DEPT MED ENGN & CARDIOL SENDAI MIYAGI 980 JAPAN TOHOKU UNIV,SCH MED,DEPT THORAC & CARDIOVASC SURG SENDAI MIYAGI 980 JAPAN TOHOKU UNIV,FAC ENGN SENDAI MIYAGI 980 JAPAN TOHOKU GAKUIN UNIV,FAC ENGN SENDAI JAPAN DEPT KNOWLEDGE BASED INFORMAT ENGN TOYOHASHI JAPAN TOYOHASHI UNIV TECHNOL TOYOHASHI AICHI 440 JAPAN
Titolo Testata:
Artificial organs
fascicolo: 10, volume: 18, anno: 1994,
pagine: 775 - 780
SICI:
0160-564X(1994)18:10<775:FOTSDI>2.0.ZU;2-U
Fonte:
ISI
Lingua:
ENG
Soggetto:
MAYER WAVES; RHYTHM;
Keywords:
ARTIFICIAL HEART; FLUCTUATION; MAYER WAVES; RESPIRATORY WAVES; SPECTRAL ANALYSIS; AUTONOMIC NERVOUS SYSTEM;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Citazioni:
17
Recensione:
Indirizzi per estratti:
Citazione:
T. Yambe et al., "FLUCTUATIONS OF THE SYMPATHETIC-NERVE DISCHARGES IN ANIMALS WITHOUT NATURAL HEARTBEAT", Artificial organs, 18(10), 1994, pp. 775-780

Abstract

To assess the effect of artificial circulation on the circulatory regulatory system, rhythmical fluctuations in the cardiovascular system and autonomic nerve discharges were analyzed in animal experiments using adult mongrel dogs. Two pneumatically actuated ventricular assist devices were implanted as total biventricular bypass (BVB) under generalanesthesia; then, the natural heart was electrically fibrillated to constitute the BVB part of the complete prosthetic circulation model. All hemodynamic data and sympathetic nerve discharges were recorded andcalculated in the computer system by the use of spectral analyzing methods. In the power spectrum of the arterial blood pressure waveform during prosthetic circulation, the Mayer wave peak was significantly decreased though the respiratory wave peak was not significantly changed. However, the Mayer wave peak in sympathetic nerve discharges was significantly increased though the respiratory wave peak was not significantly changed. These results suggest that rhythmical fluctuations are a necessary response of the circulatory regulatory system including the autonomic nervous system. However, sympathetic nerve discharges respond to the artificial heart without rhythmical fluctuations.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 12/07/20 alle ore 03:22:56