Showing papers by "Pisake Lumbiganon published in 2002"

Are women and providers satisfied with antenatal care? Views on a standard and a simplified, evidence-based model of care in four developing countries

Abstract: Background This study assessed women and providers' satisfaction with a new evidence-based antenatal care (ANC) model within the WHO randomized trial conducted in four developing countries. The WHO study was a randomized controlled trial that compared a new ANC model with the standard type offered in each country. The new model of ANC emphasized actions known to be effective in improving maternal or neonatal health, excluded other interventions that have not proved to be beneficial, and improved the information component, especially alerting pregnant women to potential health problems and instructing them on appropriate responses. These activities were distributed within four antenatal care visits for women that did not need any further assessment.

The epidemiology of syphilis in pregnancy

Abstract: This study evaluated the magnitude, risk factors and outcomes of syphilis in pregnancy in a large cohort of women in four countries participating in the World Health Organization (WHO) antenatal care trial. All women attending the first prenatal care at each selected clinic were enrolled. Screening at the first antenatal visit was routinely performed with either rapid plasma reagin or Venereal Disease Research Laboratory and confirmed by fluorescent treponemal antibody absorption. All women also had the same syphilis tests after delivery. The initial prevalence, the incidence during pregnancy and the overall prevalence of syphilis at delivery were 0.9%, 0.4% and 1.3% respectively. Risk factors for syphilis during pregnancy were younger age for the incidence and older age and a history of stillbirth for the prevalence. Women with syphilis during pregnancy had significantly more adverse outcomes. We support the recommendation that in addition to the initial testing, a second routine test for syphilis ought to be established early in the third trimester even in low prevalence areas.

Prophylactic antibiotic administration in pregnancy to prevent infectious morbidity and mortality.

Abstract: Background Some previous studies suggested that prophylactic antibiotics given during pregnancy improved maternal and perinatal outcomes, some did not show any benefit and some even reported adverse effects. Objectives To determine the effect of prophylactic antibiotics during second and third trimester of pregnancy on maternal and perinatal outcomes. Search strategy The Cochrane Pregnancy and Childbirth Group trials register (April 2002), the Cochrane Controlled Trials Register (The Cochrane Library, Issue 1, 2002) and reference lists of articles were searched. Selection criteria Randomized controlled trials comparing prophylactic antibiotic treatment with placebo or no treatment for women in the second or third trimester of pregnancy before labour. Data collection and analysis Trial quality assessment and data extraction were done by the reviewers. Main results There were six randomized controlled trials which recruited 2184 women to detect the effect of prophylactic antibiotic administration in the second or third trimester on pregnancy outcomes. Antibiotic prophylaxis in unselected pregnant women reduced the risk of prelabour rupture of membranes (Peto odds ratio (OR) 0.32, 95% confidence interval (CI) 0.14 to 0.73). In women with a previous preterm birth there was a risk reduction in low birth weight (OR 0.48, 95% CI 0.27 to 0.84) and postpartum endometritis (OR 0.46, 95% CI 0.24 to 0.89). There was a risk reduction in preterm delivery (OR 0.48, 95% CI 0.28 to 0.81) in pregnant women with a previous preterm birth associated with bacterial vaginosis (BV) during the current pregnancy but there was no risk reduction in pregnant women with previous preterm birth without BV during pregnancy (OR 1.06, 95% CI 0.68 to 1.64). However, vaginal antibiotic prophylaxis during pregnancy did not prevent infectious pregnancy outcomes and there is a possibility of adverse effects such as neonatal sepsis (OR 8.07, 95% CI 1.36 to 47.77). Reviewer's conclusions Antibiotic prophylaxis given during the second or third trimester of pregnancy reduces the risk of prelabour rupture of the membranes when given routinely to pregnant women. Beneficial effects on birth weight and the risk of postpartum endometritis were seen for high risk women.

Prophylactic antibiotic prescription for cesarean section.

Abstract: Objectives. To assess the use of prophylactic antibiotics for cesarean section, and to identify factors associated with a doctor's intraoperative prescription. Design. A hospital-based, cross-sectional study. Results. Prophylactic antibiotics were prescribed in 82% of all patients. One hundred and eighty-eight patients (21%) received antibiotics postoperatively. Of the patients receiving intraoperative antibiotics after cord clamping, 8% received only a single dose and 53% received an additional postoperative prescription. The most commonly used antibiotic was ampicillin. Intraoperative prescription was significantly associated with longer duration of ruptured membranes, higher number of vaginal examinations and doctors' age. Doctors aged 30-39 years had three and seven times the likelihood of prescribing intraoperative antibiotics compared with their younger and older colleagues, respectively. Conclusions. Administration of single-dose prescriptions was still an uncommon practice. Prophylaxis was given more commonly to patients with well known risks for infection, and was given by doctors aged 30-39 years.

Reagent strip testing is not sensitive for the screening of asymptomatic bacteriuria in pregnant women.

Abstract: The objective of the study was to assess the diagnostic performance of the reagent strip in screening for asymptomatic bacteriuria in pregnant women using urine culture as a gold standard. This study comprised 204 asymptomatic pregnant women who attended their first antenatal care at Srinagarind Hospital, Khon Kaen University from April 1, 1999 to June 30, 1999. Women with symptoms of urinary tract infection, antibiotic treatment within the previous 7 days, pregnancy-induced hypertension, bleeding per vagina and history of urinary tract diseases were excluded. Urine specimens were collected by clean catched midstream urine technique for urinalysis, reagent strip test and urine culture. Diagnostic performance of reagent strip in terms of sensitivity, specificity, positive and negative predictive value was analyzed. Urine reagent strip test had a sensitivity of 13.9 per cent, a specificity of 95.6 per cent, a positive predictive value of 46.1 per cent, a negative predictive value of 80.6 per cent in detecting asymptomatic bacteriuria in pregnant women.

Current status of prophylactic use of antimicrobial agents for cesarean section in Thailand

Abstract: Aims: To evaluate actual practices and physician reasons for variation in prophylactic use of antimicrobial agents for cesarean section (CS). Methods: The study combined a survey of 2726 medical records and an interview of 50 practicing physicians at the obstetric departments of a university, a regional and a general hospital in Songkhla Province, Southern Thailand. Results: Practices that were consistent with systematic reviews were use in 94%, prescription after cord clamping in 86%, and choosing ampicillin in 91%, because physicians believed in the advantages of these practices. Indications for prophylactic use ranged from routine use for all cases to selective use for indicated cases such as ruptured membranes, vaginal examinations, labor, maternal obesity, or unplanned CS. Single-dose practice was varied greatly across hospitals, from 9% to 84%. The reasons given by physicians for a multiple-dose regimen were personal experience in this regimen and belief in its superiority under their local conditions. This practice was less common where the hospital had practice recommendations. Conclusions: Not all evidence-based knowledge is adopted in practice. The prophylactic use of antimicrobial agents for CS varies among physicians. Past experience and personal beliefs in the limitation of research generalizability are the barriers to such adoption.