TITLE

Effects of nonpulsatile left heart bypass on renal sympathetic nerve activity in rabbits

AUTHOR(S)
Tokunaga, Shigehiko; Nakano, Toshihide; Tominaga, Ryuji; Imaizumi, Tsutomu; Takeshita, Akira; Yasui, Hisataka
PUB. DATE
October 2000
SOURCE
Perfusion;Oct2000, Vol. 15 Issue 6, p515
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
To determine the effects of nonpulsatile left heart bypass (LHB) on sympathetic nerve activity the renal sympathetic nerve activity (RSNA) was directly measured in rabbits. In anaesthetized rabbits (n=6), LHB was instituted with a centrifugal pump. Before and during LHB, heart rate (HR), arterial pressure (AP), central venous pressure (CVP), left atrial pressure (LAP) and spike counts of RSNA were measured. After bilateral vagotomy (section of the afferent inputs of the cardiac reflex arc) the same parameters were measured before and during LHB. Data were obtained at the same level of mean AP before and during LHB. Mean AP and CVP were not changed by LHB before and after vagotomy. LAP was significantly decreased by LHB before and after vagotomy. RSNA and HR were not significantly changed by LHB before and after vagotomy. Our results clarify the complex baroreflex control during nonpulsatile LHB and indicate that RSNA is not altered by LHB.
ACCESSION #
4747979

 

Related Articles

  • On the Sympathetic Innervation of the Human Greater Saphenous Vein: Relevance to Clinical Practice. Loesch, Andrzej; Dashwood, Michael R. // Current Vascular Pharmacology;Jan2009, Vol. 7 Issue 1, p58 

    This review focuses on sympathetic perivascular innervation of human saphenous vein. It shows the distribution of the nerves in the vein wall, including an association of the nerves with the vasa vasorum system. An account of a possible contribution of sympathetic nerves to the physiology of the...

  • Renal effects of dexmedetomidine during coronary artery bypass surgery: a randomized placebo-controlled study. Leino, Kari; Hynynen, Markku; Jalonen, Jouko; Salmenper√§, Markku; Scheinin, Harry; Aantaa, Riku // BMC Anesthesiology;2011, Vol. 11 Issue 1, p9 

    Background: Dexmedetomidine, an alpha2-adrenoceptor agonist, has been evaluated as an adjunct to anesthesia and for the delivery of sedation and perioperative hemodynamic stability. It provokes dose-dependent and centrally-mediated sympatholysis. Coronary artery bypass grafting (CABG) with...

  • RECONSTRUCTIVE PROCEDURES IN THE MANAGEMENT OF OCCLUSIVE ARTERIAL DISEASE. Jackson, David R. // Vascular Surgery;Sep/Oct1977, Vol. 11 Issue 5, p308 

    Discusses standard surgical approaches to occlusive peripheral arterial disease distal to the aorto-coronary bypass area. Types of bypass techniques used for occlusions in the aortic arch causing subclavian steal syndrome; Common problems encountered in major peripheral arterial...

  • Gender differences in coronary bypass surgery.  // HealthFacts;Jan96, Vol. 21 Issue 200, p2 

    Reports on a study of gender differences in coronary bypass surgery patients during 1989 and 1990 at Brigham and Women's Hospital in Boston, Massachusetts. Recovery; Severity of angina; Risk factors; Physician perception; Implications.

  • Heart bypass: Can't cure, could kill but sometimes it's what's needed. Whitaker, Julian // Health News Naturally;Winter96, p1 

    Focuses on various aspects of coronary bypass surgery. Background information; Reasons for bypass; Bad reasons for bypass; Alternatives. INSET: Consider the alternatives...

  • For second year running...Winthrop-University Hospital's heart surgery program ranks at the top.  // Long Island Business News (7/1993 to 5/2009);1/10/94, Vol. 41 Issue 2, p25 

    Features the heart bypass surgery program of Winthrop-University Hospital in Long Island, New York. Inclusion among the top programs evaluated by the New York State Department of Health; Consultations between surgeons and referring cardiologists. INSETS: `The decision to go to Winthrop was one...

  • Five years after bypass, blacks have twice the death rate.  // Modern Medicine;Sep96, Vol. 64 Issue 9, p43 

    Presents an abstract of the research report entitled `Adverse 5-year Outcome After Coronary Artery Bypass Surgery in Blacks,' by R.J. Gray, et al published in the April 1996 issue of the `Archives of Internal Medicine.'

  • Health-related quality of life after coronary revascularisation surgery. Oelofsen, Natius; Fullard, Josua P.P.; Foxcroft, Cheryl D. // South African Journal of Psychology;Jun98, Vol. 28 Issue 2, p85 

    Presents information on a study which examined the health-related quality of life (HRQOL) of South African coronary artery bypass graft recipients. Description of the research population utilized; Research methodology used in the study; Generic health ratings of coronary surgery recipients.

  • Postoperative diagnostic dilemma in off pump CABG case. Selvakumar, P.; Pathak, Sumedha // Indian Journal of Critical Care Medicine;Oct-Dec2004, Vol. 8 Issue 4, p230 

    Presents an abstract of the article "Postoperative Diagnostic Dilemma in Off Pump CABG Case," by P. Selvakumar and Sumedha Pathak.

Share

Read the Article

Courtesy of THE LIBRARY OF VIRGINIA

Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics