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Significance of Candida recovered from intraoperative specimens in patients with intra-abdominal perforations
Per Sandven1, Hanne Qvist, Eva Skovlund
1Department of Bacteriology, Norwegian Institute of Public Health, Oslo. per.sandven@folkehelsa.no
Objective:
Determine the significance of recovering yeasts from intraoperative specimens from the abdominal cavity and to evaluate the effect of a single intraoperative dose of fluconazole on clinical outcome in patients with intra-abdominal perforations.
Design:
Prospective, randomized, double-blind study.
Setting:
Multicenter study from 13 hospitals in Norway.
Patients:
One hundred nine patients with intra-abdominal perforations.
Interventions:
Patients were randomized to receive either a single 400-mg fluconazole dose or placebo during the operation.
Measurements And Main Results:
An intra-abdominal specimen for microbiological culture was obtained at the time of the operation. The primary response variable in the study was death. Secondary response variables were three parameters indicating a complicated postoperative period: mechanical ventilation for > or = 5 days, intensive care treatment for > or = 10 days, and use of a central venous catheter for > or = 10 days. Yeasts were recovered from a intraoperative intra-abdominal specimen from only 1 (3.5%) of 28 patients with perforated appendicitis and from 32 (39.5%) of 81 nonappendicitis patients. Excluding the appendicitis patients, the yeast recovery rate was high both for patients hospitalized at the time of the perforation (45%) and for nonhospitalized patients (32%). The overall mortality was 11% (12 patients). Single-dose intraoperative fluconazole prophylaxis did not reach a statistically significant effect on mortality (4 of 53 patients in the fluconazole group and 8 of 56 patients in the placebo group died [p = .059]). The only two explanatory variables significantly related to death were a intraoperative finding of yeast from an intra-abdominal specimen and the occurrence of a spontaneous perforation in a patient already hospitalized for nonsurgical cancer treatment. Detection of yeast was also a significant explanatory variable for a prolonged period of mechanical ventilation, intensive care treatment, and prolonged use of a central venous catheter.
Conclusions:
Single-dose intraoperative fluconazole prophylaxis did not have a statistically significant effect on overall mortality (odds ratio = 0.21; 95% confidence interval, 0.04-1.06; p = .059) in patients with intra-abdominal perforation. The recovery rate of yeast from intraoperative specimens from the abdominal cavity was high (>30%) and was associated with death and a complicated postoperative course.
