Characteristics, risk factors, and outcomes related to Zika virus infection during pregnancy in Northeastern Thailand: A prospective pregnancy cohort study, 2018-2020.

Background: In response to the 2015-2016 Zika virus (ZIKV) outbreak and the causal relationship established between maternal ZIKV infection and adverse infant outcomes, we conducted a cohort study to estimate the incidence of ZIKV infection in pregnancy and assess its impacts in women and infants.

Methodology/principal Findings: From May 2018-January 2020, we prospectively followed pregnant women recruited from 134 participating hospitals in two non-adjacent provinces in northeastern Thailand. We collected demographic, clinical, and epidemiologic data and blood and urine at routine antenatal care visits until delivery.

Preferred Route of Delivery of Thai Pregnant Women.

Background: Pregnant women who prefer cesarean delivery may request it without any obstetric indication, and this could be one of the reasons for the high rates of cesarean deliveries.

Objective: To determine the route of delivery preferred by Thai pregnant women.

Material And Method: A cross-sectional study was performed of Thai pregnant women who attended the antenatal care (ANC) clinic in Rajavithi Hospital between February 1, 2011 and July 31, 2011.

Pregnancy Outcomes of Healthy Parturients Delivered With or Without Episiotomy.

Background: The use of episiotomy, a previously popular obstetric procedure, has been declining for the last 25 years, falling from 65% of deliveries in 1979 to 18% in 2003. Some complications have been reported in terms of maternal side effects; however, many episiotomies are still performed in Rajavithi Hospital.

Objective: To compare maternal and neonatal outcomes and complications in the 48-hour period after vaginal delivery in healthy parturients with and without episiotomy.

Self-Preferred Route of Delivery of Thai Obstetricians and Gynecologists.

Background: The attitude of Obstetricians and Gynecologists (OB-GYNs) towards performing cesarean delivery on maternal request (CDMR) together with their preferred route of delivery for themselves or their wives is considered as important responsible factors of increasing cesarean delivery.

Objective: To assess the attitudes of Thai Obstetricians and Gynecologists with regard to their self-preferred route of delivery, willingness to perform cesarean delivery on maternal request, and associated factors.

Material And Method: From July 1, 2013 to September 30, 2013, a cross-sectional study was carried out of 1,950 members of The Royal Thai College of Obstetricians and Gynaecologists who were randomized before being sent mailed questionnaires.

Presence of Sperm in Pre-Ejaculatory Fluid of Healthy Males.

Background: Coitus interruptus, a common contraceptive method, has a high failure rate. Two reasons have been proposed for this: delayed withdrawal after ejaculation and presence of sperm in the pre-ejaculatory fluid.

Objective: To determine whether sperm was present in the pre-ejaculatory fluid of healthy males.

High pre-pregnancy body mass index and the risk of poor obstetrics outcomes among Asian women using BMI criteria for Asians by World Health Organization Western Pacific Region (WPRO): a large cohort study.

Objective: To evaluate the effects of high pre-pregnancy body mass index (BMI) on the risk ofpoor obstetric outcomes among Asian women using BMI criteria by Regional Office for the Western Pacific Region of WHO (WPRO).

Material And Method: The present study was a retrospective cohort. Subjects of live birth singletons who had full term delivered atfour tertiary care centers, teaching university hospitals between January and December 2012 were enrolled.

Standard intrauterine growth curve of Thai neonates delivered at Rajavithi hospital.

Objective: To determine the distribution of Thai neonatal birthweights classified in gestational age and sex to create standard intrauterine growth curves of Thai neonates.

Material And Method: A retrospective study was performed in Thai singleton pregnant women with confirmed gestational age between 24 and 42 weeks (168-294 days), delivered at Rajavithi Hospital. Birthweights were graphed as 5th, 10h, 50th and 90th percentile, and classified in gestational age as male, female, and both sexes.

Trend in mode of delivery in Rajavithi Hospital: a ten-year analysis (2002-2011).

Objective: To create trends in mode of delivery both public and private service at Rajavithi Hospital.

Material And Method: The medical records of singleton pregnant women delivered between January 1, 2002 and December 31, 2011 were retrospectively analyzed for mode of delivery, indication of operative obstetrics, and modality of services (public and private service).

Results: During the study period, total singleton deliveries gradually decreased from 9,418 to 6,023 while the spontaneous vaginal delivery rate fluctuated, and the cesarean delivery rate increased from 25.

Effectiveness of the model for prenatal control of severe thalassemia.

Objective: The aim of the research was to determine effectiveness of the model for prenatal control in reducing new cases of severe thalassemia.

Methods: Pregnant women at six tertiary centers were recruited to follow the model, consisting of (1) carrier screening using mean corpuscular volume (for alpha-thal-1 and beta-thal) and CMU-E screen (for HbE trait), (2) carrier diagnosis, (3) the couples at risk were counseled and offered prenatal diagnosis, and (4) termination of affected pregnancy. All neonates were evaluated for thalassemia.

Risk factors related to heartburn in pregnant women attending the antenatal care clinic, Rajavithi Hospital.

Objective: To determine the risk factors related to heartburn in pregnant women attending the antenatal care clinic, Rajavithi Hospital.

Material And Method: Self-reporting questionnaire about demographic data and risk factors related to heartburn in those pregnant women between May 1 and July 31, 2010.

Results: Heartburn was found in 55 out of 452 pregnant women (12.

Risk factors related to febrile morbidity after abdominal hysterectomy.

Objective: To assess risk factors related to febrile morbidity (FM) after abdominal hysterectomy for non-malignant diseases.

Material And Method: Retrospective review and analysis of the data was carried out on the medical records of patients who had undergone total abdominal hysterectomy (TAH) with or without bilateral salpingo-oophorectomy (BSO) for non-malignant gynecological diseases during the period of January 1, 2006 to July 31, 2007. Patients who had had fever before surgery, had been treated with antibiotics within 1 week prior to surgery, had an emergency operation or incomplete data were excluded

Results: FM was found in 47 of the 450 patients (10.

Effect of antenatal education for better self-correct diagnosis of true labor: a randomized control study.

Objective: To compare self-correct diagnosis of true labor between a special education group and routine education group.

Material And Method: A randomized controlled study was performed in 200 primigravida attending at antenatal care (ANC) clinic, Rajavithi Hospital between October 1, 2009 and March 31, 2010. They were randomly enrolled and divided into two equal groups, the first hundred cases were the special education group and the other hundred cases were the routine education group.

Fetal echocardiography: a 9-year experience in Rajavithi Hospital (1999-2007 AD).

Objective: To determine obstetric characteristics of pregnant women underwent fetal echocardiography (FE), details of FE and postnatal echocardiographic abnormality.

Material And Method: Between January 1, 1999 and December 31, 2007, pregnant women who had the indication for FE were examined at the Department of Obstetrics and Gynecology, Rajavithi Hospital. Standard obstetric ultrasonographic examinations such as fetal biometry, placental localization, and congenital anomaly were initially performed.

Coitus interruptus in female patients seeking services at Obstetrics and Gynecology Department in Rajavithi Hospital.

Objective: To study the using rate and demographic characteristic of female patients attending in Rajavithi Hospital who used coitus interruptus (CI) as a contraceptive method.

Material And Method: Two hundred sexually active, reproductive age (15-44 years) female patients attending family planning, postpartum or gynecologic clinic in Rajavithi Hospital between March 1, 2004 and May 31, 2004 were interviewed to obtain demographic data and CI using designed questionnaires.

Results: One hundred and forty out of 200 women were using CI as a choice of contraception (70%).

Outcome of teenage pregnancy in Rajavithi Hospital.

Objective: To compare maternal and neonatal outcomes between pregnant teenage girls (age <20 yrs) and pregnant adults (age 20-34 yrs).

Material And Method: Seven hundred and fifty pregnant teenagers admitted and delivered at Rajavithi Hospital during November 8, 2006 and December 22, 2007 were enrolled in the study. A control group included 750 pregnant adults delivered during the same period.

Risk factors related to asymptomatic bacteriuria in pregnant women.

Objective: To determine the risk factors related to asymptomatic bacteriuria (ABU) in pregnant women.

Material And Method: Three hundred and sixty asymptomatic pregnant women who attended their first antenatal appointment at Rajavithi Hospital from August 1 and October 31 2005 were enrolled. Those with symptoms of urinary tract infection within one month, those who had been prescribed antibiotics during the previous seven days, and those with medical or obstetric complications, vaginal bleeding, and history of urinary tract disease were excluded.

The accuracy of late antenatal screening cultures in predicting intrapartum group B streptococcal colonization.

Objective: To determine the accuracy of late antenatal (35-37 weeks) screening cultures in predicting intrapartum group B streptococcal (GBS) colonization in Rajavithi Hospital (RH).

Material And Method: From the September 1st, 2006 to November 30th, 2006 at RH, 360 pregnant women who fulfilled the specified criteria were selected from antenatal clinic. Swabs were cultured from the lower vagina and anorectum for GBS using Todd-Hewitt broth with 15 mcg/ml nalidixic acid and 8 mcg/ml gentamicin.

Reagent strip testing for antenatal screening and first meaningful of asymptomatic bacteriuria in pregnant women.

Objective: To evaluate the diagnostic performance of reagent strip test as a screening test for asymptomatic bacteriuria (ABU) in pregnant women.

Material And Method: Three hundred and sixty asymptomatic pregnant women who attended their first antenatal appointment at Rajavithi Hospital from August 1st to October 31st, 2005 were enrolled Those with symptoms of urinary tract infection within one month, those who had been prescribed antibiotics during the previous 7 days, and those with medical or obstetric complications, vaginal bleeding and a history of urinary tract diseases were excluded Urine specimens were collected by clean-catched midstream urine technique for urine dipstick and culture.

Results: The prevalence of ABU was 10.

Outcome of pregnancy among parturients complicated with heart disease in Rajavithi Hospital.

Objective: To compare the maternal and perinatal outcomes at Rajavithi Hospital from January 1st, 2000 to December 31st, 2004, (5 years), (3rd period) with those occurring in the previous two periods:1st and 2nd (1965-1970, (6 years) and 1985-1990, (6 years) respectively.

Material And Method: Retrospective analysis of various medical records of 196 cases diagnosed pregnancy with heart disease.

Results: The prevalence of parturients complicated with heart disease was 0.

Comparison of combined vaginal-anorectal, vaginal and anorectal cultures in detecting of group B streptococci in pregnant women in labor.

Objective: To compare whether the Group B streptococcal culture detection rate from vaginal-anorectal cultures, vaginal, or anorectal are equivalent.

Material And Method: Cross-sectional descriptive study was performed on 320 pregnant women with a gestational age between 28-42 weeks presenting with labor pain, between October, 1 and 30, 2004 in Rajavithi Hospital. Anorectal and vaginal swab cultures were collected and cultured in Todd Hewitt broth with 15 microg/ ml nalidixic acid and 8 microg/ml gentamicin.

Risk factors related to group B streptococcal colonization in pregnant women in labor.

Objective: To determine the risk factors related to group B streptococcal (GBS) colonization in pregnant women on admission in labor

Material And Method: From the 1st-30th October 2004, at the Rajavithi Hospital, 320 pregnant women, who fulfilled the specified criteria, were selected for a cross-sectional descriptive study. Swabs were cultured from the lower vagina and anorectum for GBS using Todd-Hewitt broth with nalidixic acid 15 microg/ml and gentamicin 8 microg/ml only.

Results: Colonization was present in 58 cases (18.

Obstetric hysterectomy: a 14-year experience of Rajavithi Hospital 1989-2002.

Objectives: To review and compare the incidence rate of obstetric hysterectomised patients between two seven-year periods. Theperiods were from October 1, 1988 to September 30, 1995 andfrom October P', 1995 to September 30th, 2002. The data included demographic characteristics, indications, possible risk factors, complications, and operative managements.

Randomised controlled trial of perineal shaving versus hair cutting in parturients on admission in labor.

Objectives: To compare the maternal and neonatal outcomes between perineal shaving and hair cutting in parturients on admission in labor

Material And Method: Five hundred pregnant women with labor pain and no medical or obstetric complications were selected at random on admission to be assigned into two groups at Rajavithi Hospital from 1st November 2001 to 28th February 2002. Forty two women were excluded because of cesarean section. Two hundred and twenty-seven cases received perineal hair cutting and 231 cases received perineal shaving.