The study objectives were to determine the significance of deep neck odontogenic infections severity to predict the postoperative morbidity. Observational study was conducted in 2014-2015. A continuous sample of 38 patients who were urgently hospitalized in the Novosibirsk Regional Clinical Hospital with deep neck odontogenic infections and operated on the day of hospitalization was analyzed. SAPS scale rates correlated positively with the duration of the artificial lungs ventilation (ALV). The positive balance of the introduced and withdrawn liquid in the first day of the postoperative period is associated with the ALV duration, which requires accurate dosing of the infusion volumes. The described protocol of perioperative care significantly decreases morbidity in patients with deep neck odontogenic infections.

Mediastinitis as complications of traumas and esophagus perforations are ill-controlled and characterized with high mortality. Yet clinical characteristics and therapeutic controllability of contact odontogenic mediastinitis are not covered enough in medical literature. Aim of the study was to investigate clinical characteristics and to analyze treatment results of odontogenic purulent mediastinitis according to data of pilot monocenter observational study. Material and methods. The results of treatment of the patients with odontogenic mediastinitis were analyzed in groups: panmediastinitis (8 participants) and posterior upper mediastinitis (12 participants). The following indexes were compared: body temperature, content of C-reactive protein, leucocytes, thrombocytes, creatinine, 24-hour and cumulative fluid electrolyte balance reproduced in hospitals of any equipment levels with using of criteria of nonparametric statistics for excluding of false positive results. Results. Causative agents of the infectious process were found in 65 % of patients in bacteriological study. The mortality was 5 %; the process controllability in conditions of described techniques of anesthesiology and intensive therapy has been shown, the danger of infusive overload of the interstitium of the lungs has been demonstrated.