• N Levi and P S Olsen.
• Department of Cardiothoracic Surgery, Rigshospitalet, The National University Hospital, Copenhagen, Denmark.
• J Cardiovasc Surg. 2000 Apr 1;41(2):241-5.

BackgroundDeep median sternotomy wound infection is a significant source of morbidity and mortality after cardiac operations. Management of an infected median sternotomy incision is a subject of controversy. The aim of this study was to assess our experience with primary closure without any irrigation system for infected deep median sternotomy wound.MethodsBetween January 1994 and December 1997, 4,227 consecutive open heart procedures via a median sternotomy under cardiopulmonary bypass were performed in our department. A total of 27 (0.64%) consecutive patients with deep sternotomy wound infection were identified. The mean age of the patients was 45 years. Six were female and 21 were male.ResultsThe incidence of deep sternal wound infection was therefore 0.64%. The mean duration between the primary operation and the onset of deep sternal wound infection was 2.5 weeks. Staphylococcus aureus and Staphylococcus epidermidis were the most common pathogen causing postoperative mediastinal infection. Out of the 27 cases, 17 were successfully treated, 8 (30%) died and 2 had a persistent fistula. The mean follow-up time was 18 months (range 4 to 52 months). The mortality in the pediatric group was 4/8 (50%) and 4/19 (21%) in the adult group. The mortality for mediastinitis presenting before one week or after 4 weeks after operation was 63%. In contrast, the mortality for mediastinitis presenting after one week but before 4 weeks after operation was 17%.ConclusionsMediastinitis after cardiac surgical procedures remains a devastating complication. Primary closure without irrigation-suction system should only be considered in selected patients.

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