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 Saved Citations Download to citation manager Request Permissions Request Reprints Add to My Marked Citations Citing Articles Citing Articles via HighWire Citing Articles via Google Scholar Citing Articles via Scopus Google Scholar Articles by Modine, T Articles by Gourlay, T Search for Related Content PubMed PubMed Citation Articles by Modine, T Articles by Gourlay, T Social Bookmarking                         What's this?

A recovery model of minimally invasive cardiopulmonary bypass in the rat

Service de Chirurgie Cardiovasculaire, Hôpital Cardiologique, CHRU Lille, France, Laboratoire de Pharmacologie, Université de Lille 2, Lille, France

R Azzaoui

Service de Chirurgie Cardiovasculaire, Hôpital Cardiologique, CHRU Lille, France, Laboratoire de Pharmacologie, Université de Lille 2, Lille, France

G Fayad

Service de Chirurgie Cardiovasculaire, Hôpital Cardiologique, CHRU Lille, France

D Lacroix

Service de Chirurgie Cardiovasculaire, Hôpital Cardiologique, CHRU Lille, France, Laboratoire de Pharmacologie, Université de Lille 2, Lille, France, Laboratoire de Pharmacologie, Université de Lille 2, Lille, France

R Bordet

Laboratoire de Pharmacologie, Université de Lille 2, Lille, France

H Warembourg

Service de Chirurgie Cardiovasculaire, Hôpital Cardiologique, CHRU Lille, France

T Gourlay

Department of Cardiothoracic Surgery, Imperial College London, London, UK, t.gourlay{at}imperial.ac.uk

This study was undertaken to develop a rodent (rat) model of cardiopulmonary bypass (CPB) that has been designed to mimic functionally the minimally invasive clinical setting. The circuit is similar to the clinical model in terms of its construction, configuration, material surface area to blood volume ratio, and priming volume to blood ratio. The overall priming volume was 10 mL. Thirty-six male Sprague-Dawley rats (422±32 g) were anaesthetized while maintaining spontaneous ventilation. Anticoagulation was achieved with heparin (500 IU/kg). Blood arterial pressure was monitored continuously. Normal central temperature was maintained throughout. Intermittent arterial blood gas levels also were monitored. All animals were cannulated in preparation for CPB; however, CPB, utilizing a double roller pump and a flow rate of 100 mL/kg/minute for 60 min, was initiated in only 18 animals, the remaining 18 animals acting as non-CPB controls (Sham). The animals were haemodynamically stable.

After the operative procedure, the animals were allowed to recover from the anaesthesia and, after transfer to a recovery facility, were monitored for a period of 1 week.

There were no differences between the groups in terms of blood gas analysis and blood pressure data; all animals survived the procedure and had an uneventful follow-up. Differences were found between the CPB animals and the Sham group in terms of TNF, used as a marker of inflammatory processes. This trend tends to support this model as an analogue for the clinical scenario for future studies of CPB-related inflammation.

Overall, the CPB procedure was easy to perform and was associated with excellent survival. This recovery model is an effective tool to perform pathophysiological studies associated with minimally invasive CPB.

Perfusion, Vol. 21, No. 2, 87-92 (2006)
DOI: 10.1191/0267659106pf854oa


CiteULike    Complore    Connotea    Del.icio.us    Digg    Reddit    Technorati    Twitter    What's this?

This article has been cited by other articles:

				J. Zhu, R. Yin, H. Shao, G. Dong, L. Luo, and H. Jing N-acetylcysteine to ameliorate acute renal injury in a rat cardiopulmonary bypass model J. Thorac. Cardiovasc. Surg., March 1, 2007; 133(3): 696 - 703. [Abstract] [Full Text] [PDF]