HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS		QUICK SEARCH:   [advanced] Author: Keyword(s): Year:  Vol:  Page:

This Article Full Text (PDF) References Alert me when this article is cited Alert me if a correction is posted Citation Map Services Email this article to a friend Similar articles in this journal Similar articles in PubMed Alert me to new issues of the journal Add to Personal Folders Download to citation manager Permission Requests Citing Articles Citing Articles via HighWire Citing Articles via Google Scholar Google Scholar Articles by Wright, G. Search for Related Content PubMed PubMed Citation Articles by Wright, G.

Ann Thorac Surg 1994;58:1199-1204
© 1994 The Society of Thoracic Surgeons

---

Articles

Hemodynamic analysis could resolve the pulsatile blood flow controversy

Department of Biomedical Engineering and Medical Physics, University of Keele, Staffordshire, England

^_* Address reprint requests to Dr Wright, Department of Biomedical Engineering and Medical Physics, University of Keele, Staffordshire ST5 5BC, England.

Reasons for fluctuations in the popularity of pulsatile cardiopulmonary bypass are discussed. The advantages of pulsatile flow have previously been stated in terms of physiologic parameters. This has produced a weak theoretic framework that has led to serious misunderstandings of the fundamental mechanical properties of pulsatile flow. Failure to consider these properties in the past may have allowed modified roller pumps to be accepted as "pulsatile," even though their pulsatile power outputs are small compared with those of the human heart. A fresh approach is required in which pulsatile blood flow is analyzed in terms of hemodynamic power and impedance parameters.

This article has been cited by other articles:

				Y. Ganushchak, K. Reesink, P. Weerwind, and J. Maessen The effect of oxygenator mechanical characteristics on energy transfer during clinical cardiopulmonary bypass Perfusion, January 1, 2011; 26(1): 39 - 44. [Abstract] [PDF]

				B. Voss, M. Krane, C. Jung, G. Brockmann, S. Braun, T. Gunther, R. Lange, and R. Bauernschmitt Cardiopulmonary bypass with physiological flow and pressure curves: pulse is unnecessary! Eur J Cardiothorac Surg, January 1, 2010; 37(1): 223 - 232. [Abstract] [Full Text] [PDF]

				J. W. Hammon Extracorporeal Circulation: Perfusion System Card. Surg. Adult, January 1, 2008; 3(2008): 350 - 370. [Full Text]

				A. R. Travis, G. A. Giridharan, G. M. Pantalos, R. D. Dowling, S. D. Prabhu, M. S. Slaughter, M. Sobieski, A. Undar, D. J. Farrar, and S. C. Koenig Vascular pulsatility in patients with a pulsatile- or continuous-flow ventricular assist device J. Thorac. Cardiovasc. Surg., February 1, 2007; 133(2): 517 - 524. [Abstract] [Full Text] [PDF]

				A. Undar and J. L. Myers Arterial Pressure and Pump Flow Rate During Long-Term Pulsatile and Nonpulsatile Cardiac Support Ann. Thorac. Surg., March 1, 2005; 79(3): 1093 - 1094. [Full Text] [PDF]

				E. A. Hessel II and L. H. Edmunds Jr. Extracorporeal Circulation: Perfusion Systems Card. Surg. Adult, January 1, 2003; 2(2003): 317 - 338. [Full Text]

				A. Undar, K. M Koenig, O H Frazier, and C. D Fraser Jr Impact of membrane oxygenators on pulsatile versus nonpulsatile perfusion in a neonatal model Perfusion, March 1, 2000; 15(2): 111 - 120. [Abstract] [PDF]

				A. Undar and C. D. Fraser Jr Balloon pump-induced pulsatile perfusion during cardiopulmonary bypass does not improve brain oxygenation J. Thorac. Cardiovasc. Surg., January 1, 2000; 119(1): 189 - 189. [Full Text]

				Y. Kadoi and S. Saito Balloon pump-induced pulsatile perfusion during cardiopulmonary bypass does not improve brain oxygenation J. Thorac. Cardiovasc. Surg., January 1, 2000; 119(1): 189 - 190. [Full Text]

				E. Silistreli, H. Catalyurek, N. Sariosmanoglu, U. Acikel, E. Hazan, and O. Oto Effects on the Endocrine System of Pulsatile and Nonpulsatile Perfusion in Heart Surgery Asian Cardiovasc Thorac Ann, March 1, 1999; 7(1): 18 - 22. [Abstract] [Full Text] [PDF]

				A. Undar and C. D. Fraser Jr. The relation between pump flow rate and pulsatility on cerebral hemodynamics during pediatric cardiopulmonary bypass J. Thorac. Cardiovasc. Surg., September 1, 1998; 116(3): 530 - 531. [Full Text]

				A. Undar, M. C Holland, R. V Howelton, C. K Benson, J. R Ybarra, O L. Miller, M. M Rossbach, T. M Runge, S. B Johnson, E. Y Sako, et al. Testing neonate-infant membrane oxygenators with the University of Texas neonatal pulsatile cardiopulmonary bypass system in vitro Perfusion, September 1, 1998; 13(5): 346 - 352. [Abstract] [PDF]

				A Undar Letter to the editor Perfusion, May 1, 1998; 13(3): 215 - 216. [PDF]