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Ann Thorac Surg 1995;59:361-372
© 1995 The Society of Thoracic Surgeons

Myocardial Protection for Acquired Heart Disease Surgery: Results of a National Survey

Section of Cardiothoracic Surgery, University of Nebraska Medical Center, Omaha, Nebraska

Accepted for publication September 16, 1994.

To study current myocardial protection practices, all 4,393 United States board-certified thoracic surgeons were surveyed in 1992. Of the 1,413 respondents (32% total response), 936 are in active practice dealing with acquired heart disease. Based on their frequency of cases, respondents perform approximately 32% of all acquired heart disease operations in the United States yearly and individually average 157 patients/year. For myocardial protection, 98% of respondents routinely use cardioplegic arrest. The primary method of cardioplegia delivery is antegrade 36%, retrograde 4%, and a combination of antegrade and retrograde 60%. The types of cardioplegic solutions used are blood 72%, crystalloid 22%, and oxygenated crystalloid 6%. Continuous warm blood cardioplegia is used by 10% of respondents, whereas most (75%) have adopted a skeptical ``wait and see'' attitude or have abandoned it (6%). Overall, most surgeons (78%) report that they are very satisfied with their present methods of myocardial protection, whereas only 2% are dissatisfied. Still, the three areas believed most important for future research are reperfusion injury (74%), acutely infarcting myocardium (61%), and metabolic enhancers in cardioplegia (58%).

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