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Titolo:
Arterial baroreceptor afferent activity in nonpulsatile systemic circulation
Autore:
Shomura, Y; Tanaka, K; Takabayashi, S; Hioki, I; Tenpaku, H; Maze, Y; Shimono, T; Shimpo, H; Yada, I;
Indirizzi:
Mie Univ, Sch Med, Dept Thorac & Cardiovasc Surg, Tsu, Mie, Japan Mie Univ Tsu Mie Japan d, Dept Thorac & Cardiovasc Surg, Tsu, Mie, Japan
Titolo Testata:
ARTIFICIAL ORGANS
fascicolo: 12, volume: 22, anno: 1998,
pagine: 1056 - 1063
SICI:
0160-564X(199812)22:12<1056:ABAAIN>2.0.ZU;2-7
Fonte:
ISI
Lingua:
ENG
Soggetto:
SYMPATHETIC-NERVE ACTIVITY; BLOOD-FLOW; CARDIOPULMONARY BYPASS; PULSATILE; METABOLISM; PERFUSION; DOGS; PUMP;
Keywords:
nonpulsatile systemic circulation; total left heart bypass; arterial baroreceptors; aortic depressor nerve; centrifugal pump;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Clinical Medicine
Citazioni:
17
Recensione:
Indirizzi per estratti:
Indirizzo: Shomura, Y 2-174 Edobashi, Tsu, Mie 5148507, Japan 2-174 Edobashi Tsu MieJapan 5148507 , Tsu, Mie 5148507, Japan
Citazione:
Y. Shomura et al., "Arterial baroreceptor afferent activity in nonpulsatile systemic circulation", ARTIF ORGAN, 22(12), 1998, pp. 1056-1063

Abstract

We directly measured aortic depressor nerve activity (ADNA) in rabbits to investigate changes in arterial baroreceptor afferent activity (ABAA) in response to nonpulsatile systemic circulation (NC) during total left heart bypass (TLHB). ADNA was measured before and 5, 20, 30, 40, 50, and 60 min after the start of TLHB while maintaining the mean aortic pressure (MAP) at preestablished values (n = 10). At 5 min, the ADNA was significantly increased compared to its baseline value. At 30 min, it was significantly decreasedcompared to its value at 5 min and thereafter remained the same. The ADNA was then measured before and 5 and 30 min after the start of TLHB under increased MAP (n = 10). The results showed that the percentage changes in ADNAduring TLHB were significantly less than that observed when the MAP was increased before TLHB. We conclude that ABAA acutely adapts to NC 30 min after its initiation, but changes in ABAA are depressed under NC combined with increased MAP.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 24/11/20 alle ore 11:10:03