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J Thorac Cardiovasc Surg 2007;134:731-737
© 2007 The American Association for Thoracic Surgery

Surgery for Congenital Heart Disease

Surgical atrial septal defect closure after interventional occluder placement: Incidence and outcome

^a Universität Leipzig, Herzzentrum, Klinik für Herzchirurgie, Leipzig, Germany
^b Kinderkardiologie, Leipzig, Germany.

Read at the Eighty-sixth Annual Meeting of The American Association for Thoracic Surgery, Philadelphia, Pa, April 29-May 3, 2006.

Received for publication January 3, 2006; revisions received April 16, 2007; accepted for publication April 23, 2007.

^_* Address for reprints: Prof Dr Thomas Walther, Universität Leipzig, Herzzentrum, Klinik für Herzchirurgie, Strümpellstrasse 39, 04289 Leipzig, Germany. (Email: walt{at}medizin.uni-leipzig.de).

Objective: Closure of ostium secundum atrial septal defects is generally performed by using an interventional approach. We evaluated the outcome of patients requiring secondary surgical therapy.

Methods: From September 1996 until December, 2005, 418 patients received interventional and 297 patients underwent surgical closure of an ostium secundum atrial septal defect at our center. Another 15 patients (local, 5; regional, 5; and national, 5 referrals) had complications after occluder placement, and they form the study population.

Results: Indications for surgical repair in these 15 patients were dislocation of the occluder in 5, neurologic events after occluder placement in 5, residual defects in 4, and sepsis with questionable occluder infection in 1 patient. A total of 7 patients had neurologic events, 5 of embolic origin. The interval between interventional occluder placement and definitive surgical repair was 319 ± 416 days (median 123 days; range 0–1395 days). Patient age at operation was 34.9 ± 18.6 years. Nine patients were operated on via an anterolateral minithoracotomy, and 6 received a conventional sternotomy. One patient with sepsis underwent abdominal surgery on postoperative day 1 and subsequently died of multiorgan failure; there was no proof of occluder endocarditis. At 2.2 ± 1.9 years of follow-up, all other patients had returned to full-time work without residual neurologic impairment.

Conclusions: Complications may arise after interventional ostium secundum atrial septal defect closure. This must be evaluated against the extremely low risk of a standard surgical closure. The functional outcome after secondary surgical ostium secundum atrial septal defect closure with removal of an occluder system is excellent.

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Discussion
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