Descending necrotizing mediastinitis: a challenging infection. Selected results of a Moroccan bicentric study.

Introduction: Mediastinal infection is a persistent and difficult widespread infectious disease caused by secondary complications of adjacent organs. It spreads easily and is often misdiagnosed because of the lack of typical manifestations. Material and methods: To highlight the clinical features, medical and surgical strategy of descending necrotizing mediastinitis we performed a retrospective study of 25 documented cases during a 10-year period at our hospital, all treated surgically, 10 from the ORL department and 15 from our thoracic surgery department. Results: Patients were aged from 20 to 84 years, with a median age of 41 years, male predominance (19 men and 6 women), sex ratio of 3.6. A cervicotomy (in 40% of cases) was associated or not with videothoracoscopy (one case) or thoracotomy (in 20% of cases) and wide-spectrum antibiotherapy. In the postoperative period, an irrigation-suction system was used on the drains in 15 patients. In 1 case a rethoracotomy was necessary to remove a residual right pyothorax, and one patient required a tracheostomy. Twenty-two (88%) patients recovered from their mediastinitis. Death of 3 patients by sepsis multiorgan failure occurred. Postoperative follow-up during one year was uneventful without recurrence. Conclusions: According to our experience, we believe the more aggressive local treatment is, the better are the results.