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This study aimed to evaluate our 30-year experience in the treatment of deep sternal wound infection after cardiac surgery. Between 1979 and 2009, deep sternal wound infections occurred in 200 of 22,366 (0.89%) patients who underwent sternotomy. The study population was divided into 3 groups. In group A (62 patients; 1979-1994), an initial attempt at conservative antibiotic therapy was the rule, followed by surgery in case of failure. In group B (83 patients; 1995-2002), the treatment was in 3 steps: wound debridement and closed irrigation for 10 days; in case of failure, open dressing with sugar and hyperbaric treatment; delayed healing and negative wound cultures mandated plastic reconstruction. In group C (2002-2009), the treatment was based on early surgical debridement, vacuum application, and reconstruction using pectoralis muscle flap. Hospital mortality in group A was significantly higher than that in groups B and C. Hospital stay, time for normalization of white blood cell count and C reactive protein, and time for defervescence were significantly shorter in group C. In our experience, early surgical debridement and vacuum application followed by plastic reconstruction provided a satisfactory rate of healing and a good survival rate.