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Ann Thorac Surg 1995;60:815-818
© 1995 The Society of Thoracic Surgeons

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II: Surgical Myocardial Protection

Complex Valve Operations: Antegrade Versus Retrograde Cardioplegia?

Division of Cardiothoracic Surgery, Department of Surgery, East Carolina University School of Medicine, Greenville, North Carolina

Abstract

Background. Increasingly complex cardiac procedures demand optimal myocardial protective techniques during the requisite interval of aortic cross-clamping. For complex procedures in which prolonged cross-clamp times are anticipated, we favor combined antegrade and retrograde cold blood cardioplegia. Advantages include rapid arrest, uniform distribution, and an uninterrupted operation.

Methods. We retrospectively evaluated the cases of 194 consecutive patients who underwent complex cardiovascular procedures between January 1988 and October 1994. Procedures performed included valve repair and coronary artery bypass grafting (23.7%), valve replacement and coronary artery bypass grafting (19.1%), complex aortic arch and valve procedures (16.6%), valve repair only (16.5%), reoperative valve (9.8%), and multiple-valve replacements (9.3%). Cardioplegic arrest times averaged 113 +/- 38.5 minutes (range, 52 to 292 minutes).

Results. Postoperative left and right ventricular function was evaluated using transesophageal echocardiography. The echocardiograms revealed a 3.1% incidence of new left ventricular dysfunction and no case of right ventricular dysfunction. Of the patients evaluated, 75.7% required little (<3 µg • kg^-1 • min^-1 of dopamine hydrochloride) or no inotropic support postoperatively. The 30-day mortality rate was 3.1%, and no death was due to cardiac failure.

Conclusions. We conclude that myocardial protection using a combined antegrade and retrograde cardioplegia technique permits excellent myocardial protection during complex cardiovascular procedures requiring long arrest times.

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				E. Bezon, J. N. Choplain, A. A. Aziz Khalifa, H. Numa, N. Salley, and J. A. Barra Continuous retrograde blood cardioplegia ensures prolonged aortic cross-clamping time without increasing the operative risk Interactive CardioVascular and Thoracic Surgery, August 1, 2006; 5(4): 403 - 407. [Abstract] [Full Text] [PDF]

				W. J. Flameng, P. Herijgers, S. Dewilde, and E. Lesaffre Continuous retrograde blood cardioplegia is associated with lower hospital mortality after heart valve surgery J. Thorac. Cardiovasc. Surg., January 1, 2003; 125(1): 121 - 125. [Abstract] [Full Text] [PDF]

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