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Single and multiple dose cotrimoxazole and metronidazole in colorectal surgery
Abstract:
Cotrimoxazole and metronidazole were given prophylactically to patients undergoing colorectal surgery as a single preoperative dose or in multiple doses for 5 days. A total of 60 operations randomly divided into two groups showed that the rate of wound infection was low in both groups and there was no statistical difference between them. There were no cases of anastomotic dehiscence in those patients where the anastomosis was carried out from within the abdomen, but 7 out of 9 patients with transphincteric colo-anastomoses developed a suture line dehiscence. A greater degree of post-catheterization urinary tract infection was seen in the single dose group (which lacks statistical significance). There were no toxic effects.
Insights
Prophylactic cotrimoxazole and metronidazole showed low wound infection rates in colorectal surgery patients, with no significant differences between single and multiple doses. Transphincteric colo-anastomoses had high dehiscence rates.
Area of Science:
- Surgical Infection Prevention
- Colorectal Surgery
- Antibiotic Prophylaxis
Background:
- Surgical site infections and anastomotic leaks are significant complications in colorectal surgery.
- Optimizing antibiotic prophylaxis regimens is crucial for patient outcomes.
Purpose of the Study:
- To compare the efficacy of single-dose versus multi-dose prophylactic antibiotics (cotrimoxazole and metronidazole) in preventing surgical site infections after colorectal surgery.
- To evaluate the impact of different prophylactic regimens on anastomotic integrity and urinary tract infections.
Main Methods:
- A randomized study involving 60 patients undergoing colorectal surgery.
- Patients were allocated to receive either a single preoperative dose or multiple doses (5 days) of cotrimoxazole and metronidazole.
- Wound infection rates, anastomotic dehiscence, and post-catheterization urinary tract infections were monitored.
Main Results:
- Low rates of wound infection were observed in both treatment groups, with no statistically significant difference.
- No anastomotic dehiscence occurred in patients with intra-abdominal anastomoses.
- Seven out of nine patients with transphincteric colo-anastomoses experienced suture line dehiscence.
- A trend towards increased post-catheterization urinary tract infections was noted in the single-dose group, though not statistically significant.
- No toxic effects were reported for either regimen.
Conclusions:
- Single-dose and multi-dose prophylactic antibiotics demonstrate comparable efficacy in preventing wound infections in colorectal surgery.
- Transphincteric colo-anastomoses present a high risk for suture line dehiscence, irrespective of the prophylactic antibiotic regimen.
- Further investigation is warranted for optimizing antibiotic strategies in high-risk anastomotic procedures.