There was no significant improvement in the chest X-ray atelectasis score in mechanically ventilated patients with new onset atelectasis who were nebulized with Dornase alpha twice a day. Hypertonic saline was no more effective than normal saline in this population. Larger randomized control trials are needed to confirm our results.
A prospective randomised study to assess the efficacy of antibiotic prophylaxis in oesophageal surgery was performed, in which 226 consecutive patients (113 male and 113 female, age range 24-86 years, mean age of 65 years) were included. The study patients were in two groups: group 1, in which the upper alimentary tract was opened during surgery, and group 2, in which it was not. The group 1 patients (n = 129) were randomised to one of three antibiotic prophylaxis regimes prior to surgery. Group A patients (n = 42) were treated with cefuroxime (CFX) 1.5 g at induction of anaesthesia and then CFX 750 mg b.i.d. for 4 days. Group B patients (n = 46) were treated with CFX 1.5 g and metronidazole (MTR) 1.0 g at induction of anaesthesia, then CFX 750 mg b.i.d. and MTR 500 mg qds for 4 days. Group C (n = 41) treated with CFX 1.5 g and MTR 1.0 g at the induction of anaesthesia. Group 2 (n = 97) was divided into two groups, group D (n = 47) treated with CFX 1.5 g on induction of anaesthesia alone. Group E (n = 50) treated with CFX 1.5 g on induction of anaesthesia then CFX 750 mg bd for 2 days. We found a significantly higher incidence of infective complications in subgroup C (43.9%) and subgroup A (21.4%) compared to subgroup B (8.6%). This difference was most marked in patients undergoing oesophagectomy. We found significantly higher infection rates of infective complications in subgroup D (10.6%) as compared to subgroup E (2%).
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