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J. Thorac. Cardiovasc. Surg. · Jul 2012
Evolving surgical techniques for pulmonary endarterectomy according to the changing features of chronic thromboembolic pulmonary hypertension patients during 17-year single-center experience.
- Marco Morsolini, Salvatore Nicolardi, Elisa Milanesi, Eleonora Sarchi, Gabriella Mattiucci, Catherine Klersy, and Andrea Maria D'Armini.
- Division of Cardiac Surgery, University of Pavia School of Medicine, Foundation IRCCS San Matteo Hospital, Pavia, Italy. m.morsolini@smatteo.pv.it
- J. Thorac. Cardiovasc. Surg. 2012 Jul 1; 144 (1): 100-7.
ObjectiveAn increasing number of elderly patients are referred for pulmonary endarterectomy. The distinction between operable and inoperable lesions has been challenged over time. Hence, we developed alternative cardiopulmonary bypass management and cerebral protection strategies to obtain satisfactory surgical results according to the changing patient features.MethodsFrom April 1994 to March 2011, 347 pulmonary endarterectomies were performed at our center. We began with the technique championed by the San Diego Group, adopting a single period of deep hypothermic circulatory arrest for each side (group A). Since 2003, we began to perform short periods of intermittent deep hypothermic circulatory arrest followed by periods of reperfusion (group B). We then adopted moderate, instead of deep, hypothermia (group C). Finally, we modified our technique further performing shorter (5-7-minute) periods of circulatory arrest (group D).ResultsThe hemodynamic results after surgery were excellent in all 4 groups. The patients' age increased significantly. A trend toward an increase in the number of Jamieson type 3 lesions was observed. Associated with our protocol changes, we observed better postoperative respiratory function, a reduction in the length of mechanical ventilation and postoperative infections, and a remarkable improvement in uneventful postoperative courses. Despite the increased total circulatory arrest time, a trend toward a reduction in the incidence of transient neurologic events was observed, and operative mortality was not affected.ConclusionsIn our experience, our alternative strategy resulted in a better combination of surgical accuracy and cerebral protection and improved outcomes.Copyright © 2012 The American Association for Thoracic Surgery. Published by Mosby, Inc. All rights reserved.
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