Prophylactic incisional negative pressure wound therapy reduces the risk of surgical site infection after caesarean section in obese women: a pragmatic randomised clinical trial.

OBJECTIVE: To evaluate the reduction of surgical site infections by prophylactic incisional negative pressure wound therapy compared with standard postoperative dressings in obese women giving birth by caesarean section. DESIGN: Multicentre randomised controlled trial. SETTING: Five hospitals in Denmark. POPULATION: Obese women (prepregnancy body mass index (BMI) ≥30 kg/m2 ) undergoing elective or emergency caesarean section. METHOD: The participants were randomly assigned to incisional negative pressure wound therapy or a standard dressing after caesarean section and analysed by intention-to-treat. Blinding was not possible due to the nature of the intervention. MAIN OUTCOME MEASURES: The primary outcome was surgical site infection requiring antibiotic treatment within the first 30 days after surgery. Secondary outcomes included wound exudate, dehiscence and health-related quality of life. RESULTS: Incisional negative pressure wound therapy was applied to 432 women and 444 women had a standard dressing. Demographics were similar between groups. Surgical site infection occurred in 20 (4.6%) women treated with incisional negative pressure wound therapy and in 41 (9.2%) women treated with a standard dressing (relative risk 0.50, 95% CI 0.30-0.84; number needed to treat 22; P = 0.007). The effect remained statistically significant when adjusted for BMI and other potential risk factors. Incisional negative pressure wound therapy significantly reduced wound exudate whereas no difference was found for dehiscence and quality of life between the two groups. CONCLUSION: Prophylactic use of incisional negative pressure wound therapy reduced the risk of surgical site infection in obese women giving birth by caesarean section. TWEETABLE ABSTRACT: RCT: prophylactic incisional NPWT versus standard dressings postcaesarean in 876 women significantly reduces the risk of SSI.

Medical management of first trimester miscarriage according to ultrasonographic findings.

BACKGROUND: The efficacy of medical treatment of first trimester miscarriages may depend on the regimen used, the definition of success, clinical symptoms, and, possibly, on the ultrasonographic findings. Our primary aim was to assess if a single dose of misoprostol could reduce the number of surgical interventions in early pregnancy failure, and to compare efficacy in different ultrasonographically-defined subgroups. METHODS: A retrospective review of 355 consecutive patients treated for a first trimester miscarriage with a single dose of vaginal misoprostol (400 microg), followed by vaginal ultrasonography after either 1, 2 or 3 days. Treatment was successful if a complete abortion was diagnosed at follow-up. The women were divided into 4 ultrasonographically-defined groups: missed abortion with a crown rump length (CRL)>or=6 mm (Group A1) or CRL<6 mm (Group A2), anembryonic gestation with gestational sac>or=18 mm (Group B1) or <18 mm (Group B2). RESULTS: The overall success rate was 39.2% (139/355). The regimen was more efficacious in Group A2 (50%) and less efficacious in Group B1 (26.6%) than in the other groups. The success rates were lower 1 day after treatment (30.2%) compared to days 2 and 3 (43.6%; p<0.05), and the difference was largest in Group B1 (12.9 versus 35.4%; p<0.05). CONCLUSIONS: Single dose misoprostol reduced the number of surgical interventions. The success rates of medically-treated first trimester miscarriages varied according to the ultrasonographic definitions of pregnancy failure, time of assessment, and the criteria for success.

Prediction of late failure after medical abortion from serial beta-hCG measurements and ultrasonography.

BACKGROUND: Surgical treatment of failed medical abortion may be performed several weeks after initiation of the abortion. There are no recognized methods for early identification of these late failures. We assessed the prognostic values of beta-hCG and ultrasonography in predicting late failure after medical abortion. METHODS: A total of 694 consecutive women with gestational age (GA) <63 days were followed up with beta-hCG measurements initially on the day of treatment and on day 8 and day 15, after the medically induced abortion with mifepristone and gemeprost. Measurement of the endometrial thickness by ultrasonography was performed on day 15 after induction of medical abortion. Failures diagnosed after day 15 and within 15 weeks were identified and classified as late failures. All interventions in this group were due to bleeding problems. The predictive values of different absolute and relative beta-hCG levels and different endometrial thickness were analysed. RESULTS: Of all failures in the study period, 65% (32) were diagnosed after the 2 week follow-up, and categorized as late failures. The absolute and the relative beta-hCG values on days 8 and 15 as well as the endometrial thickness on day 15 were greater among late failures than successes. Used as a predictive test, the positive predictive values of these variables were low. CONCLUSION: Neither beta-hCG nor endometrial thickness can be used clinically as diagnostic tests in predicting late failure after medical abortion.

Emergency contraception: knowledge and use among Danish women requesting termination of pregnancy.

The aim of this study was to describe knowledge about and use of emergency contraception (EC) among Danish women requesting termination of pregnancy. The study included 1514 women (response rate 83.7%) referred during the period August 2000 to May 2001. Sufficient knowledge of EC was defined as knowledge about both the correct time limit and where to acquire the EC. We found adequate knowledge in 44.7%. These women were typically younger, better educated and more often singles, nulliparae, and users of contraception. No relation was found to the type of contraception used or to previous terminations of pregnancies. EC was used in the actual pregnancy by 6.6% and 24.1% had used it previously. Actual or formers users were characterized in the same way. The general knowledge about EC has not improved significantly during the last few years and there is still need for information about the correct use of EC.

Postpartum Clostridium sordellii infection associated with fatal toxic shock syndrome.

Clostridium bacteria are anaerobic Gram positive spore-form-ing bacilli, known to cause distinct clinical syndromes such as botulism, tetanus, pseudomembranous colitis and myonecrosis. The natural habitats of Clostridium species are soil, water and the gastrointestinal tract of animals and humans. In 5-10% of all women, Clostridium species are also found to be normal inhabitants in the microbial flora of the female genital tract. In case of a non-sexually transmitted genital tract infection, Clostridium species are isolated in 4-20%, and clostridium welchii seems to be the most common isolate. Clostridium sordellii is rarely encountered in clinical specimens (1% of Clostridium species), but it has been described as a human pathogen with fatal potential. Two toxins, a lethal and a hemorrhagic (that antigenically and pathophysiologically appear similar to Clostridium difficile toxins B and A, respectively) are responsible for this potential. Reviewing the obstetric literature, only six cases of postpartum endometritis caused by C. sordellii, are described - all being fatal. In addition, one lethal case of spontaneous endometritis resulting from C. sordellii is reported. The clinical aspects of these cases include: - sudden onset with influenza-like symptoms in previously healthy women - progressive refractory hypotension - local and spreading tissue edema - absence of fever Laboratory findings include: - marked leukocytosis - elevated hematocrit. This paper reports the seventh fatal postpartum C. sorlellii associated toxic shock syndrome - the first recognized in Scandinavia.