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Ann Thorac Surg 2001;72:2186
© 2001 The Society of Thoracic Surgeons
a Department of Cardiovascular Surgery, Tenri Hospital, Mishima 200, Tenri City, Nara 632-8552, Japan
e-mail: tokuda{at}mxb.mesh.ne.jp
To the Editor
In the December 2000 issue of The Annals, Toda and colleagues [1] reported good results of the operations for 9 adult patent ductus arteriosus (PDA) patients using cardiopulmonary bypass and an occlusion balloon. However, based on our clinical experience, we consider that in patients where there is no calcification around the PDA, transcatheter coil closure is a better treatment for adult PDA patients because it is less invasive.
Recently, the transcatheter coil closure of a small PDA has become widely used for children, but it is still not frequently performed in older patients. We successfully performed antegrade transcatheter coil closure of a large PDA in a 70-year-old woman; the PDA was 4.6 mm in minimal diameter and the calculated pulmonary-to-systemic flow ratio was 1.56 to 1. Using the cardiac muscle biopsy foreceps through the end hole catheter, two large 0.052-inch Gianturco coils (Cook Inc, Bloomington, IN) were implanted in the PDA. Complete occlusion was obtained without any complication. Our method is the modification of the new coil delivery method that Grifka and Jones [2] reported in a child with large PDA. Oishi and colleagues [3] have also reported coil closure of the PDA in an adult patient with smaller 0.038-inch coil.
The long-term result of our case of the coil closure of PDA is unknown. It is also important to monitor the development of late complications such as hemolysis, delayed pulmonary arterial stenosis, or recurrent leakage. However, we consider that transcatheter coil closure is a feasible procedure for an adult PDA patient, especially in elderly patients. Further investigation may extend its indication.
References
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