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Ann Thorac Surg 2001;71:1587-1590
© 2001 The Society of Thoracic Surgeons

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Original article: cardiovascular

Cardiac hydatid cysts with intracavitary expansion

^a Siyami Ersek Thoracic and Cardiovascular Surgery Center, Istanbul, Turkey

Accepted for publication December 28, 2000.

Address reprint requests to Dr Kaplan, 67. Ada Kardelen 4-4, D:11 Atasehir 81120, Istanbul, Turkey
e-mail: mehmetkaplan{at}superonline.com

Background. Hydatid cyst disease is a significant health problem for undeveloped and developing countries. Although cardiac involvement is rare, early diagnosis and treatment of this situation is important.

Methods. To investigate the long-term outcome of patients who underwent operation for cardiac hydatid cysts with intracavitary expansion, we reviewed 8 patients who had cardiac hydatidosis and who underwent operation in our institution between January 1988 and November 1999. All patients presented with intracavitary protrusion of the cysts. Seven patients were women. The mean age was 33 ± 14.3 years with a range of 17 to 55 years. The cysts were located on the right ventricular outflow tract (2 patients), right midventricular part of the muscular septum, left atrial free wall and apical portions of the right (2), or left (2 patients) ventricle. Standard cardiopulmonary bypass and crystalloid antegrade cardioplegia with aortic cross-clamping were used in all patients. In one, with right ventricular hydatid cyst, we used cardiopulmonary bypass with femoral cannulation and total circulatory arrest at less than 18°C systemic hypothermia. This patient, who was arrested because of pulmonary emboli could not be weaned from cardiopulmonary bypass and died.

Results. The cystic cavity was cleaned and closed with multiple pursestring sutures in 4 patients. In 2, cardiac and cystic cavities were united by partially resecting part of the cyst facing the cavity. In another patient, a left ventricular patch plasty was performed after removal of the cystic material in the left ventricle. Mebendazole was used postoperatively in all patients. Except for 1 patient who died, all were discharged without postoperative complications. The mean follow-up was 7.5 ± 5 years. There was no late cardiac mortality or recurrence.

Conclusions. Cardiac hydatid cysts with intracavitary expansion should be treated surgically without delay. Gentle handling of the heart during cardiopulmonary bypass minimizes operative risk. All patients should be investigated for systemic cysts.

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