Mediastinal abdominal wall fistula due to ePTFE membrane
2008
: A 78-year-old woman who had undergone double valve replacement 13 years before was referred to our department because of postoperative wound dehiscence and exudate. Although the result of exudate culture was negative, the wound was disinfected continuously for 4 weeks and showed a transient remission. However, the exudate was observed again 3 weeks later. By chest computed tomography (CT), a highly bright shadow was revealed in the mediastinum, which was suspected to be a foreign body and, therefore, the cause of the exudate. Considering the possibility of infection, the patient underwent an operation. Following incision of the epigastric region and the resection of the xiphoid process, ePTFE membrane with poor granulation tissue was found. The membrane was removed, the lesion was washed with warm saline, and then the wound was closed. The postoperative course was uneventful without recurrence. This complication was considered to be caused by biological reaction to a foreign body.
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