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A single dose tinidazole and doxycycline prophylaxis in elective surgery of colon and rectum. A prospective
Abstract:
Antimicrobial prophylaxis with agents active against aerobic and anaerobic micro-organisms leads to a significant reduction of infectious complications following colorectal surgery. A single dose (1600 mg) of tinidazole (a nitroimidazole derivate) and doxycycline (400 mg) will provide serum and tissue values well above minimum inhibitory concentration (MIC) values for more than 24 hours. To reduce the unwanted side effects and cost of prolonged antimicrobial prophylaxis, a prospective controlled clinical multicenter study comparing the effect of a single dose before operation of tinidazole and doxycycline to five days of prophylaxis before operation in 234 patients undergoing elective colorectal surgery was undertaken. Six patients given a single dose of prophylaxis before operation (n = 118) developed infectious complication (5.1%). Prolongation of prophylaxis before operation for four days after operation (n = 116) did not lead to any further reduction of infectious complications. A single dose of tinidazole and doxycycline before operation is a simple and effective prophylaxis against infectious complications following elective colorectal surgery.
Insights
A single preoperative dose of tinidazole and doxycycline effectively prevents infectious complications after colorectal surgery. This approach simplifies prophylaxis, reduces side effects, and is as effective as longer treatment durations.
Area of Science:
- Surgical Infectious Disease
- Clinical Pharmacology
- Antimicrobial Therapy
Background:
- Colorectal surgery carries a significant risk of infectious complications.
- Antimicrobial prophylaxis is standard but prolonged use can increase side effects and costs.
- Agents active against both aerobic and anaerobic microorganisms are crucial for effective prophylaxis.
Purpose of the Study:
- To compare the efficacy and safety of a single preoperative dose of tinidazole and doxycycline versus a five-day regimen for antimicrobial prophylaxis in elective colorectal surgery.
- To determine if a single-dose regimen can achieve comparable outcomes to prolonged prophylaxis.
- To evaluate the potential for reducing side effects and costs associated with antimicrobial prophylaxis.
Main Methods:
- A prospective, controlled, multicenter clinical study.
- 234 patients undergoing elective colorectal surgery were enrolled.
- Patients received either a single preoperative dose of tinidazole (1600 mg) and doxycycline (400 mg) or a five-day prophylaxis regimen.
Main Results:
- The single-dose group (n=118) experienced a 5.1% rate of infectious complications (6 patients).
- The five-day prophylaxis group (n=116) did not show a statistically significant reduction in infectious complications compared to the single-dose group.
- Serum and tissue concentrations of tinidazole and doxycycline remained above minimum inhibitory concentrations for over 24 hours with the single dose.
Conclusions:
- A single preoperative dose of tinidazole and doxycycline is a simple, effective, and safe antimicrobial prophylaxis for elective colorectal surgery.
- Prolonged antimicrobial prophylaxis beyond a single preoperative dose does not offer additional benefits in reducing infectious complications.
- This single-dose strategy offers a cost-effective and potentially safer alternative to longer prophylactic regimens.