Maternal genital tract colonisation by group-B streptococcus: a hospital based study.

OBJECTIVES: To determine the prevalence of Group B Streptococcus genital tract infection in pregnant women and to determine the risk factors for its colonisation. METHODS: The cross-sectional study was conducted at the Aga Khan University Hospital, Karachi and Sobhraj Hospital, Karachi, from May to August 2007. Pregnant women at 35-37 weeks gestation attending antenatal clinic at these hospitals constituted the study population. Based on stratified sampling, 405 patients were recruited. High vaginal swabs of these patients were taken in order to calculate the prevalence of infection at each hospital. Logistic regression was used to evaluate the risk factor association. SPSS 11.5 was used for statistical analysis. RESULTS: The overall prevalence of colonisation was 17% (n = 69) (95% CI: 13.4-20.7). Of the 155 (38.27%) women at the Aga Khan Hospital, 35 (22.6%) were positive, while among the 250 (61.72%) women at Sobhraj Hospital, the prevalence was 13.6% (n = 34). The colonisation was found to be significantly associated inversely with the body mass index of the patient (OR 0.91; 95% CI: 0.08-1.0). CONCLUSION: Group B Streptococcus screening should be an integral part of antenatal care and should be offered to all pregnant women.

A Review of Comparison of Complications of Vaginal Hysterectomy with and without Concomitant Surgery for SUI: A 5 Years' Experience at a Tertiary Care Hospital of Pakistan.

Objective. The study was performed to review the complications of surgery for POP with or without surgery for SUI. This included the need for second procedure two years after the primary surgery. Study Design. We conducted a retrospective cross-sectional comparative study at the Aga Khan University, Karachi, Pakistan. International Classification of Diseases, 9th revision, Clinical Modification (ICD-9-CM) was used to identify women who underwent vaginal hysterectomy with anterior/posterior repair alone and those with concomitant tension-free vaginal tape surgery for urodynamic stress incontinence. Results. The 28 cases of VH/repair combined with TVT were compared for complications with 430 cases of VH with repair alone. The basic characteristics like age, BMI, and degree of prolapse showed no statistical difference among two groups. The main comorbidities in both groups were hypertension, diabetes, and bronchial asthma. We observed no significant differences in intraoperative and postoperative complications except for cuff abscess, need for medical intervention, and readmission following discharge from hospital, which were higher in cases with vaginal hysterectomy with concomitant TVT. Conclusions. Vaginal hysterectomy is an efficient treatment for uterovaginal prolapse with a swift recovery, short length of hospital stay, and rare serious complications. The addition of surgery for USI does not appear to increase the morbidity.

Assisted reproductive technology : experience with IVF/ICSI.

OBJECTIVE: To analyze success rates of assisted reproduction techniques ART (IVF/ICSI) in couples experiencing subfertility, and factors which may help in predicting treatment outcome. DESIGN: A prospective cohort follow-up study. PLACE AND DURATION OF STUDY: Study was conducted at Concept Fertility Centre, Karachi, between July 1, 2000 and December 31, 2002. SUBJECTS AND METHODS: A cohort of 310 couples undergoing 330 in-vitro fertilization (IVF) and intra cytoplasmic sperm injection (ICSI) cycles were followed for treatment outcomes. Predictor variables included age of women, cause of subfertility, drug regimen used for ovulation induction, day of embryo transfer, and ease of embryo transfer. While outcome variables included rates of fertilization, pregnancy, live birth, miscarriages, multiple pregnancies and ovarian hyperstimulation syndrome (OHSS). RESULTS: The overall pregnancy rate was 35.2 %, while takehome live-birth rate was 25.1%. Treatment cycles which were done for male factor only, had higher probability of success as compared to female factors or for unexplained infertility. Patients who underwent transvaginal ovum pick up and embryo transfer (TVOPU + ET) had an overall pregnancy rate of 29.4% as compared to those who underwent frozen embryo transfer (FET) cycles (22.6%). There was no statistically significant difference between pregnancy rates for ovulation induction with recumbent FSH (rFSH) and HMG (32.7% v 33.6%, p-value 0.87). Quality of embryo transfer was significantly better (33.7%, v 24.2%, p-value 0.042) in patients who conceived. CONCLUSION: Our results are comparable in terms of pregnancy rates, live birth rates and complication rates, to the results reported in international literature. We however, need more data from centres in Pakistan for future reference and research.

Increased risk of cervical canal infections with intracervical Foley catheter.

OBJECTIVE: To evaluate the effect of intracervical Foley catheter insertion, for the induction of labor, on cervical canal infection. DESIGN: A prospective interventional study with paired analysis. PLACE AND DURATION OF STUDY: The study was conducted in the department of Obstetrics and Gynecology at the Aga Khan University, Karachi, between June 1 and August 31, 2002. SUBJECTS AND METHODS In 45 women undergoing cervical ripening with intracervical Foley catheter for the induction of labour at term, cervical swabs were taken for culture and sensitivity before its insertion and again after its spontaneous expulsion or removal. RESULTS: Intracervical Foley catheter was retained for mean duration of 8.1 +/- 1.7 hours. There was a significant change in the pathogenic organisms (0 % v 16.3 %; p 0.016) from pre-Foley to post-Foley catheter cervical swab cultures. Growth of beta-hemolytic Streptococcus group-B, Candida albicans, Candida glabrata and Gardnerella vaginalis on cervical swab were considered pathogenic. One woman (2.2 %) developed fever following insertion of intracervical Foley catheter. No statistically significant effect of potential confounding factors was observed on change in growth of pathogenic organisms. CONCLUSION: Induction of labour at term with Foley catheter is associated with a significant increase in intracervical pathogenic organisms despite undertaking routine aseptic measures. We recommend evaluation of this technique for its potential infectious harm in larger studies. Meanwhile, extreme aseptic measures should be undertaken during its insertion to avoid maternal and possible neonatal infections.

Clinical governance in the management of induction of labour.

OBJECTIVE: To determine whether dissemination of explicit guidelines, developed in consensus with stakeholders, for the processes of induction of labour (IOL), results in reduction of variability in clinical practice. DESIGN: A prospective behaviour modification interventional study. PLACE AND DURATION OF STUDY: The study was conducted in the department of Obstetrics and Gynaecology at the Aga Khan University, Karachi, between January 1 and August 31, 2002. SUBJECTS AND METHODS: In a total of 142 conveniently sampled women, undergoing IOL, pre-identified quality assessment indicators were measured. After collection of data from initial 71-women (pre-intervention group) mutually agreed guidelines for clinical practice were disseminated, over a period of time, among consultants, residents and nurses. These indicators were again measured in subsequent 71 women (post-intervention group) to evaluate magnitude of residual non-conformities in these processes. RESULTS: Following behaviour modification interventions, nonconformities in consultants and residents-dependent processes like timely review of patients by consultants (72 vs 1.4%, p value <0.0001), documentation of indication for IOL (66.2 vs 16.9%, p value <0.0001), method of induction for IOL (56.3 vs 28.2%, p value 0.0001), and calculation of Bishop score before IOL (38.0 vs 4.2 %, p value <0.0001) were significantly reduced. CONCLUSION: Dissemination of explicit guidelines developed in consensus with stakeholders significantly reduces variability in clinical practice. Our model can be used for improving quality of care in other areas of obstetric health care.