PROJECT PREVENT: Metronidazole Antibiotic Per Vagina Before Hysterectomy: Is Additional Antibiotic Prophylaxis Beneficial?

  • STATUS
    Recruiting
  • End date
    Mar 25, 2022
  • participants needed
    136
  • sponsor
    New York Medical College
Updated on 25 January 2021

Summary

Despite use of intravenous antibiotic prophylaxis, pelvic infection including vaginal and urinary complaints and infections are still noted after hysterectomy. For gynecologic surgery the burden of infection is not only from the skin but from the vagina and urinary tract. Hysterectomy involves a communication via the cervical or vaginal canal directly with the pelvis and thus can lead to a potentially increased risk of infection from both aerobic and anaerobic organisms. Vaginal metronidazole is a standard of care antibiotic for vaginal infections including bacterial vaginosis. Based upon small studies in the peri-operative setting, vaginal metronidazole may provide a benefit in decreasing surgical site infections and urinary infections in conjunction with standard infection prevention protocols.

This study is for women undergoing elective subtotal or total hysterectomy by any route of surgery. The main objective of this study is to evaluate if metronidazole inserted per vagina daily for 5 days before elective hysterectomy decreases patient complaints of potential infection or documented post-operative infection.

Subjects will be randomized to an intervention or control group. For subjects in the intervention group, vaginal metronidazole 0.75% (MetroGel or Vandazole) will be prescribed and inserted per vagina days 1 through 5 prior to date of surgery. The control group will not receive a metronidazole prescription.

Description

Standard of care surgical site infection (SSI) antibiotic prophylaxis for elective hysterectomy is a single intravenous antibiotic. Despite use of intravenous antibiotic prophylaxis, pelvic infection including vaginal and urinary complaints and infections are still often noted after hysterectomy. For gynecologic surgery the burden of infection is not only from the skin but from the vagina and urinary tract. Hysterectomy involves a communication via the cervical or vaginal canal directly with the pelvis and thus can lead to a potentially increased risk of infection from both aerobic and anaerobic organisms.

There has been scant retrospective data examining the use of metronidazole as an adjunct to standard antibiotic prophylaxis for hysterectomy. A few previous studies have examined the use of vaginal metronidazole in patients who had a documented overgrowth of normal bacterial flora (e.g. diagnosed with bacterial vaginosis) prior to hysterectomy in pre-menopausal women only and found a significant difference in prevention of infections.

Vaginal metronidazole is a standard of care antibiotic for vaginal infections including bacterial vaginosis. Based upon small studies in the peri-operative setting, vaginal metronidazole may provide a benefit in decreasing surgical site infections and urinary infections in conjunction with standard infection prevention protocols.

For post-operative patients, the symptoms of vaginal discharge, dysuria, pelvic pain and wound erythema/induration/drainage is not only distressing for the patient but leads to additional phone calls, patient visits, laboratory and radiology evaluation and possibly additional pain, and antibiotic prescriptions. This increased use of health care services can cause a burden to our health care system and diminish overall patient satisfaction. Therefore, if additional prophylaxis can also prevent patient reported symptoms of post-operative infection, the intervention may be of value.

The objective of this study is to investigate if metronidazole inserted per vagina daily for 5 days before elective hysterectomy decreases patient complaints of potential infection or documented post-operative infection.

Subjects randomized to the intervention are required to pick up the antibiotic at their own pharmacy. They must then insert the antibiotic per vagina once daily on days 1-5 (day 5 being the day before their scheduled operation).

There are no study related visits, imaging, or testing required above standard peri-operative procedures as per their gynecologic surgeon. Subjects randomized to the control group (no antibiotic) are followed for data collection only. Subjects in both groups will have a routine hospital stay for surgery and their routine follow up for post-operative care as per the standard practice of the gynecologic surgeon.

Details
Condition Post-Op Infection, Post-Op Infection, Post-Op Infection, Post-Op Infection, Post-Op Infection
Treatment Metronidazole Vaginal, Metronidazole Vaginal
Clinical Study IdentifierNCT04478617
SponsorNew York Medical College
Last Modified on25 January 2021

Eligibility

Yes No Not Sure

Inclusion Criteria

Is your age greater than or equal to 18 yrs?
Are you female?
Do you have Post-Op Infection?
Do you have any of these conditions: Do you have Post-Op Infection??
Any female aged 18 years old and over
Patient scheduled for elective subtotal (removal of uterus only with or without ovaries) or total hysterectomy (removal of uterus and cervix with or without ovaries) by any route of surgery. Procedures will include laparoscopic, robotic, open and vaginal approaches

Exclusion Criteria

Known hypersensitivity to metronidazole (oral or vaginal)
Hysterectomy scheduled within 5 days of study enrollment (ie there will not be enough time to complete the study drug course)
Suspected active bacterial vaginosis at time of consent
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