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Design of Cecal Ligation and Puncture and Intranasal Infection Dual Model of Sepsis-Induced Immunosuppression
Published on: June 15, 2019
Increased incidence of postoperative infections during prophylaxis with cephalothin compared to doxycycline in
Gunnar Baatrup1, Roy M Nilsen, Rune Svensen
1Department of Surgery, Haukeland University Hospital, and Institute of Surgery, University of Bergen, Bergen, Norway. gba@vizhealth.no
Background:
The antibiotics used for prophylaxis during surgery may influence the rate of surgical site infections. Tetracyclines are attractive having a long half-life and few side effects when used in a single dose regimen. We studied the rate of surgical site infections during changing regimens of antibiotic prophylaxis in medium and major size surgery.
Methods:
Prospective registration of surgical site infection following intestinal resections and hysterectomies was performed. Possible confounding procedure and patient related factors were registered. The study included 1541 procedures and 1489 controls. The registration included time periods when the regimen was changed from doxycycline to cephalothin and back again.
Results:
The SSI in the colorectal department increased from 19% to 30% (p=0.002) when doxycycline was substituted with cephalothin and decreased to 17% when we changed back to doxycycline (p=0.005). In the gynaecology department the surgical site infection rate did not increase significantly. Subgroup analysis showed major changes in infections in rectal resections from 20% to 35% (p=0.02) and back to 12% (p=0.003).
Conclusion:
Doxycycline combined with metronidazole, is an attractive candidate for antibiotic prophylaxis in medium and major size intestinal surgery.
Insights
Doxycycline prophylaxis significantly reduced surgical site infections (SSI) in intestinal surgery compared to cephalothin. Switching back to doxycycline lowered SSI rates, indicating its effectiveness in preventing infections.
Area of Science:
- Infectious Diseases
- Surgical Prophylaxis
- Antibiotic Efficacy
Background:
- Antibiotic prophylaxis choice impacts surgical site infection (SSI) rates.
- Tetracyclines, like doxycycline, offer advantages for single-dose prophylaxis due to long half-life and safety.
- Investigated SSI rates during shifts in antibiotic prophylaxis regimens for medium and major surgeries.
Purpose of the Study:
- To evaluate the impact of changing antibiotic prophylaxis regimens on surgical site infection rates.
- To compare the efficacy of doxycycline versus cephalothin in preventing SSIs in intestinal and gynecological surgeries.
Main Methods:
- Prospective registration of SSIs following intestinal resections and hysterectomies.
- Inclusion of 1541 procedures and 1489 controls, with registration during shifts between doxycycline and cephalothin prophylaxis.
- Collection of confounding patient and procedure-related factors.
Main Results:
- Colorectal SSIs increased from 19% to 30% with cephalothin, decreasing to 17% upon return to doxycycline (p=0.002 and p=0.005).
- Gynecological SSIs did not show a significant increase.
- Rectal resections showed a significant increase in SSIs from 20% to 35% with cephalothin, reverting to 12% with doxycycline (p=0.02 and p=0.003).
Conclusions:
- Doxycycline, particularly when combined with metronidazole, is a favorable option for antibiotic prophylaxis in medium to major intestinal surgeries.
- The study highlights the significant impact of antibiotic choice on SSI rates in specific surgical contexts.
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