The impact of antenatal massage practice on intrapartum massage application and their associations with the use of analgesics during labour : Sub-analysis of a randomised control trial.

BACKGROUND: Massage during labour is one form of intrapartum non-pharmacological pain relief but it is not known whether the frequency of practicing these massage techniques among couples during the antenatal period could enhance the effectiveness of intrapartum massage. This study was to evaluate the association between compliance of antenatal massage practice with intrapartum application and their impact on the use of analgesics during labour. METHODS: This was a sub-analysis of a childbirth massage programme which was carried out in two public hospitals with total births of around 8000 per year. Data from women who were randomized to the massage group were further analysed. After attending the pre-birth training class on massage at 36 weeks gestation, couples would be encouraged to practice at home. Their compliance with massage at home was classified as good if they had practiced for at least 15 minutes for three or more days in a week, or as poor if the three-day threshold had not been reached. Application of intrapartum massage was quantified by the duration of practice divided by the total duration of the first stage of labour. Women's application of intrapartum massage were then divided into above and below median levels according to percentage of practice. Logistic regression was used to assess the use of epidural analgesia or pethidine, adjusted for duration of labour and gestational age when attending the massage class. RESULTS: Among the 212 women included, 103 women (48.6%) achieved good home massage compliance. No significant difference in the maternal characteristics or birth outcomes was observed between the good and poor compliance groups. The intrapartum massage application (median 21.1%) was inversely associated with duration of first stage of labour and positively associated with better home massage practice compliance (p = 0.04). Lower use of pethidine or epidural analgesia (OR 0.33 95% CI 0.12, 0.90) was associated with above median intrapartum massage application but not antenatal massage compliance, adjusted for duration of first stage of labour. CONCLUSIONS: More frequent practice of massage techniques among couples during antenatal period could enhance the intrapartum massage application, which may reduce the use of pethidine and epidural analgesia. TRIAL REGISTRATION: (CCRBCTR) Unique Trial Number CUHK_ CCRB00525 .

Chronic maternal hepatitis B virus infection and pregnancy outcome- a single center study in Kunming, China.

BACKGROUND: Chinese population has a high prevalence of chronic hepatitis B virus (HBV) infection, the impact of which on pregnancy outcome remains controversial. A single-center retrospective cohort study was performed in Kunming, a multi-ethnic city in south-western China to examine this issue. METHODS: The singleton pregnancies delivering at ≥28 weeks gestation under our care in 2005-2017 constituted the study cohort. Maternal characteristics and pregnancy outcome were compared between mothers with and without seropositivity for hepatitis B surface antigen (HBsAg) determined at routine antenatal screening. RESULTS: Among the 49,479 gravidae in the cohort, the 1624 (3.3%) HBsAg seropositive gravidae had a lower incidence of nulliparity (RR 0.963, 95% CI 0.935-0.992) and having received tertiary education (RR 0.829, 95% CI 0.784-0.827). There was no significant difference in the medical history, pregnancy complications, or labor or perinatal outcome, except that HBV carriers had significantly lower incidence of labor induction (RR 0.827, 95% CI 0.714-0.958) and of small-for-gestational age (SGA) infants (RR 0.854, 95% CI 0.734-0.994). On regression analysis, maternal HBV carriage was independently associated with spontaneous labor (aRR 1.231, 95% CI 1.044-1.451) and reduced SGA infants (aRR 0.842, 95% CI 0.712-0.997). CONCLUSIONS: Our 3.3% prevalence of maternal HBV infection was around the lower range determined in the Chinese population. The association with spontaneous labor and reduced SGA infants could have helped to promote the perpetuation of the infection through enhanced survival of the offspring infected at birth, thus explaining the high prevalence in the Chinese population.

Impact of childbirth policy changes on obstetric workload over a 13-year period in a regional referral center in China - implications on service provision planning.

BACKGROUND: We aimed to appraise the impact of the changing national childbirth policy since 2002, currently allowing two children per family, on obstetric workload in a regional referral center in China. METHODS: In a retrospective cohort study, temporal changes were examined in relation with maternal demographics, incidence of women with high risk pregnancies and resource statistics in our hospital in managing singleton viable pregnancies (birth from 28 weeks gestational age onwards) for the period 2005-2017. RESULTS: During this 13-year period, the number of singleton livebirths from 28 weeks gestational age onwards was 49,479. Annual numbers of births increased from 1,941 to 2005 to 5,777 in 2017. There were concomitant and significant increases in the incidence of multiparous women (10.6-50.8 %), of age ≥35 years (6.5-24.3 %), with prior caesarean Sec. (2.6-23.6 %), with ≥3 previous pregnancy terminations (1.0-4.9 %), with pre-gestational diabetes (0.2-0.9 %), and with chronic hypertension (0.2-1.2 %). There were associated increases in beds and staff complement and reduced average hospital stay. Nevertheless, while the workload of medical staff remained stable with increasing staff complement, that of midwives increased significantly as reflected by the total births: midwife ratio which increased from 194.1:1 to 320.9:1 (p < 0.001). CONCLUSIONS: In our hospital, progressively increasing numbers of annual births in combination with an increased incidence of women with high risk pregnancies took place following the revised national childbirth policy. Only the increase in medical and nursing, but not midwifery, staff was commensurate with workload. Remedial measures are urgently required before the anticipated progressive increase in care demand would overwhelm maternity care with potentially disastrous consequences.

The role of chromosomal microarray analysis among fetuses with normal karyotype and single system anomaly or nonspecific sonographic findings.

INTRODUCTION: Chromosomal microarray analysis is recommended as the first-tier test for the evaluation of fetuses with structural anomalies. This study aims to investigate the incremental diagnostic yield of chromosomal microarray over conventional karyotyping analysis in fetuses with anomalies restricted to one anatomic system and those with nonspecific anomalies detected by sonography. MATERIAL AND METHODS: This is a retrospective cohort analysis of 749 fetuses undergoing prenatal diagnosis for abnormal ultrasound findings isolated to one anatomic system and normal karyotype, utilizing chromosomal microarray. Overall, 495 (66%) fetuses had anomalies confined to one anatomic system and 254 (34%) had other nonspecific anomalies including increased nuchal translucency (≥3.5 mm), cystic hygroma, intrauterine growth restriction and hydrops fetalis. RESULTS: Fetuses with ultrasound anomalies restricted to one anatomic system had a 3.0% risk of carrying a pathogenic copy number variant; the risk varied dependent on the anatomic system affected. Fetuses with confined anomalies of the cardiac system had the highest diagnostic yield at 4.6%, but there were none in the urogenital system. Fetuses with nonspecific ultrasound anomalies had the highest diagnostic yield in fetuses with an intrauterine growth restriction at 5.9%. Overall, fetuses with a nonspecific ultrasound anomaly were affected with pathogenic copy number variants in 1.6% in the cases. CONCLUSIONS: The diagnostic yield of chromosomal microarray in fetuses with normal karyotype and ultrasound abnormality confined to a single anatomic system was highest if it involved cardiac defects or intrauterine growth restriction. This diagnostic yield ranges from 0% to 4.6% depending on the anatomic system involved. Chromosomal microarray has considerable diagnostic value in these pregnancies.

Prevalence and impact of hepatitis B virus infection in ovarian cancer patients in an endemic area-A retrospective cohort study.

Hepatitis B virus (HBV) infection is associated with many extrahepatic malignancies, but its association with and impact on ovarian cancer has not been examined. We therefore examined the prevalence of HBV infection among women with primary ovarian carcinoma in an endemic area, and whether this impacts the presentation and survival of these patients. In a retrospective study, we reviewed 523 patients presenting with primary ovarian cancer and known HBV status between 1 January 2006 and 31 December 2017. Patients were divided into HBV-positive and negative groups for the comparison of the patient characteristics and presentation, including staging and histological types, and short term (2 years) mortality from ovarian cancer. Among the 10.1% (53/523) patients screened positive for HBV, more of them presented with advanced staging at FIGO stage 3 or above (OR 1.378, 95% CI 1.063-1.787), although there were no significant differences in patient characteristics. Within 24 months from presentation, there were more deaths due to malignancy in the HBV-positive group (73.3% vs 44.2%, OR 1.659, 95% CI 1.135-2.425). On multivariate analysis after adjusting for nulliparity status, previous use of oestrogens, presence of metastases, histological type (epithelial or others) and grading (high grade or not), whether optimal debulking was performed, and chemotherapy, HBV infection was independently associated with increased death within 24 months of presentation (aOR 2.683, 95% CI 1.015-7.091). In conclusion, the findings of this study suggested an adverse effect of chronic HBV infection on survival within two years of presentation in patients with primary ovarian cancer.

Ovarian HBV replication following ovulation induction in female hepatitis B carriers undergoing IVF treatment: A prospective observational study.

Hepatitis B virus (HBV) can be found in ovarian tissues. This study compared HBV DNA levels in follicular fluid collected during oocyte retrieval with paired serum samples in HBV carriers after ovarian stimulation during IVF treatment for infertility. Sixty-four HBV carrier women referred to the Assisted Reproductive Units of two Hong Kong hospitals were recruited. At oocyte retrieval, the follicular fluid aspirated from the first follicle was collected for study. In 22 women, the first follicular fluid sample from both ovaries was similarly collected and studied. These women were also tested for liver function test and HBeAg. In 28 (43.8%) women, HBV DNA was detected in follicular fluid and the level correlated with serum levels (Spearman's correlation P < .001). There was concordant detection of HBV DNA in both ovaries, and the levels were significantly correlated (Spearman's correlation P = .029). In 40% of women with FF HBV DNA, the follicular fluid:serum ratio was >1.0, suggesting stimulation of HBV replication. These women also had significantly different liver function test results. Increased HBV replication exists in 40% of women with HBV DNA detected in follicular undergoing ovarian stimulation during IVF treatment.

Fertility preservation in Hong Kong Chinese society: awareness, knowledge and acceptance.

BACKGROUND: Fertility preservation for both medical and non-medical reasons are gaining increasing attention world-wide. This study aimed to evaluate the awareness, knowledge and acceptance on fertility preservation in Hong Kong Chinese. METHODS: This was a cross-sectional study carried out between June 2016 to March 2017. A self-administered questionnaire was distributed by convenience sampling. RESULTS: Forty two percent of subjects returned the questionnaire (n = 296/697). Among them, only 54.3% were aware of any means of fertility preservation. Tertiary educated individuals are more aware than less educated individuals (73.6% versus 46.6%, p < 0.001). The most commonly known method is oocyte cryopreservation (94.3%). Most of the respondents (80%) were interested to know about fertility preservation, 84.1% considered fertility preservation counselling necessary and 83.3% would consider undergoing fertility preservation if a treatment has a high chance of causing infertility despite the possibility of delay in cancer treatment. Up to 93.9% agreed to set up a dedicated referral centre with government funding and 73.4% agreed that fertility preservation for medical indication should be provided as a government funded service. In terms of fertility preservation for non-medical reason, 65.5 and 70.4% agreed that fertility preservation should be offered to single men and women without partner respectively, while only 53.3 and 50% agreed that fertility preservation is acceptable for delay in childbearing for career development in female and male respectively. CONCLUSION: There was a low awareness but positive attitude towards fertility preservation among Hong Kong Chinese. Acceptance towards medically indicated fertility preservation is high while a considerable number also accepts it for non-medical reasons. Educational campaigns are required to arouse awareness of fertility preservation to prevent individuals being deprived of the option due to lack of knowledge. Dedicated referral centre with established efficient patient referral pathways and financial support should be provided to improve the provision and uptake of fertility preservation service to enhance the reproductive potential and life options of women.

The Accuracy of Self-Screening of Group B Streptococcus in Pregnant Women-A Randomized Crossover Study.

OBJECTIVE: Universal screening of vaginal and rectal group B streptococcus (GBS) carriage in pregnant women is now recommended in many countries to identify at-risk pregnancies and reduce the risk of early-onset GBS disease in newborn infants. This study compared self-screening by pregnant women with screening by health care workers in a largely Chinese population. METHODS: A randomized crossover study was conducted in Hong Kong. All women attending the GBS screening visit at 35-37 weeks gestation between May and October 2015 were approached for recruitment. Consenting participants underwent both self-screening and screening by health care workers. Group 1 had health care worker screening swabs first, and group 2 had self-screening first. A positive GBS diagnosis was made if either swab was positive. The sensitivity of each approach was calculated by comparison with this gold standard. Acceptance of GBS self-screening and neonatal outcomes was analyzed (Canadian Task Force Classification I). RESULTS: Of the 672 women approached, 428 (63.7%) consented to the study. The prevalence of GBS was 19.7% (83 of 422). Sensitivities of self-screening and screening by health care workers were 61.4% (51 of 83) and 97.6% (81 of 83), respectively (P < 0.05). Women who used vaginal pessaries and non-Chinese women had a higher positive concordance rate with health care workers (P < 0.05). Neonatal outcomes of GBS-positive mothers were similar in the concordant and discordant groups. CONCLUSION: The sensitivity of self-screening of GBS in Hong Kong was lower than the sensitivity of screening by health care workers. Cultural difference needs to be considered when implementing self-screening in different populations.

Risk for Cesarean section in women of advanced maternal age under the changed reproductive policy in China: A cohort study in a tertiary hospital in southwestern China.

AIM: To describe changed epidemiological features of advanced maternal age (AMA) and to examine the effect of AMA on the risk for Cesarean section (CS) in a Chinese pregnant population. METHODS: This retrospective single-center cohort study investigated the changes of epidemiological features of AMA parturients with respect to the revised reproductive policy in China in 43 702 singleton deliveries with live birth at ≥28 weeks managed from January 2005 to December 2016. We also evaluated the pregnancy outcomes in different age groups and risk factors of CS with multivariate analysis. RESULTS: In this 12-year study period, the average maternal age increased from 28.5 to 30.2 years, and the proportion of AMA raised from 6.5% to 17.2%. AMA was significantly associated with increased risk of adverse pregnancy outcomes, and after adjustment for confounding factors, AMA remained a significant independent risk factor for CS. Furthermore, the effect of AMA in nulliparous women on the risk of CS was more significant than in multiparous women, while the history of previous CS (adjusted odds ratio 39.85) and interdelivery interval ≥10 years (adjusted odds ratio 1.52) also increased the risk of CS in multiparous women. CONCLUSION: AMA increased the risk of a number of adverse pregnancy outcomes, and was independently associated with increased risk for CS. The increasing number of AMA parturients with risk factors is likely to increase CS rate in China in the near future, thus it is imperative to reduce the rate of primary CS as a matter of policy.

Prevention of perinatal hepatitis B virus transmission.

PURPOSE: Chronic hepatitis B virus (HBV) infection remains endemic and continues to cause significant morbidity and mortality. It is a global health issue and the World Health Organization aims to eradicate HBV by 2030. Since vertical transmission accounts for the majority of chronic HBV infection, pregnancy offers an excellent opportunity to achieve complete HBV eradication by providing effective immunization of the offspring. METHODS: We reviewed recent publications identified from PubMed database using a combination of the relevant keywords for HBV, pregnancy, vertical transmission, immunoprophylaxis failure and antiviral treatment. RESULTS: We summarized the evidence of factors associated with, and measures to reduce and prevent maternal to child transmission, including the use of antiviral treatment during pregnancy to prevent immunoprophylaxis failure. Evidence suggested that highly viremia mother can be offered antenatal antiviral treatment to prevent immunoprophylaxis failure. We elaborated the viral load threshold to start maternal antiviral treatment and the importance of timely neonatal vaccination. A clinical algorithm to manage HBV carriers during pregnancy was proposed. CONCLUSION: Eradication of HBV is achievable with optimal management of HBV carriers, especially during pregnancy by interruption of vertical transmission. Routine antenatal screening and neonatal immunoprophylaxis remain the key measures to reduce the global HBV burden, and additional antenatal antiviral treatment could further minimize the chance of persistent infection in newborns.

Pseudoamniotic Band Syndrome after In Utero Intervention for Twin-to-Twin Transfusion Syndrome: Case Reports and Literature Review.

Pseudoamniotic band syndrome (PABS) is a rare iatrogenic complication that arises after invasive procedures in monochorionic twins. We report 3 cases of PABS, 2 after fetoscopic laser photocoagulation and 1 after bipolar cord coagulation. Two cases were detected antenatally by ultrasound; out of the two, one underwent successful fetoscopic release of amniotic band, which is the first report in twin pregnancy to our knowledge. In our centre, the incidence of PABS was found to be 2%. There were 25 cases of PABS reported previously, of which 12 cases with clinical details were reviewed together with our 3 cases. The fetal limbs were involved in all 15 cases, leading to constriction or amputation. The umbilical cord was involved in 2 cases, resulting in fetal death in one and pregnancy termination in the other. Antenatal detection of PABS is rare (27%; 4/15) as this requires a high index of suspicion. Serial postoperative targeted ultrasound surveillance of the fetal limbs and umbilical cord is necessary, particularly when features of septostomy or chorioamniotic membrane separation are found. Colour Doppler examination for the perfusion of the affected limb should be performed when PABS is detected. Fetoscopic release of amniotic band could salvage the fetal limb from amputation when impaired blood flow is detected.

Evaluation of an in-house real-time polymerase chain reaction method to identify group B streptococcus colonization in pregnancy.

AIM: The aim of this study was to evaluate the performance of in-house real-time polymerase chain reaction (qPCR) in detecting group B streptococcus (GBS) colonization compared with the standard culture method in a cohort of pregnant women. MATERIAL AND METHODS: A total of 134 rectovaginal swabs were collected from 125 pregnant women, of whom 108 were known carriers or presented with preterm prelabor rupture of membranes. The swabs were placed in Standard Methods Broth (Todd-Hewitt broth supplemented with 6 µg/mL gentamicin and 15 µg/mL nalidixic acid) for culture identification of GBS. An in-house qPCR was also performed from the broth and after overnight incubation of the broth. RESULTS: The detection rate of GBS in this cohort was 30.6% and 50.7% using standard culture method and qPCR, respectively. GBS-specific qPCR assay gave sensitivities of 97.6% and 100%, specificities of 73.1% and 71.0%, and negative predictive values of 98.6% and 100% from direct specimen and from broth after overnight incubation, respectively. CONCLUSIONS: The in-house qPCR test has high sensitivity in detecting GBS colonization. The high negative predictive value helps to avoid unnecessary use of antibiotics in uncolonized women.

Age-specific prevalence of hepatitis B virus infection in young pregnant women, Hong Kong Special Administrative Region of China.

OBJECTIVE: To investigate the age-specific prevalence of hepatitis B virus (HBV) infection in young pregnant women in Hong Kong Special Administrative Region (SAR), China, and to determine whether an increase in prevalence occurs during adolescence. METHODS: HBV prevalence was quantified using data from routine antenatal screening for hepatitis B surface antigen (HBsAg) in 10 808 women aged 25 years or younger born in Hong Kong SAR and managed at a single hospital between 1998 and 2011. The effect on prevalence of maternal age, parity and birth before or after HBV vaccine availability in 1984 was assessed, using Spearman's correlation and multiple logistic regression analysis. FINDINGS: Overall, 7.5% of women were HBsAg-positive. The prevalence ranged from 2.3% to 8.4% in those aged ≤ 16 and 23 years, respectively. Women born in or after 1984 and those younger than 18 years of age were less likely to be HBsAg-positive (odds ratio, OR: 0.679; 95% confidence interval, CI: 0.578-0.797) and (OR: 0.311; 95% CI: 0.160-0.604), respectively. For women born before 1984, there was no association between HBsAg carriage and being younger than 18 years of age (OR: 0.60; 95% CI: 0.262-1.370) Logistic regression analysis showed that the prevalence of HBsAg carriage was influenced more by the woman being 18 years old or older (adjusted OR, aOR: 2.80; 95% CI: 1.46-5.47) than being born before 1984 (aOR: 1.42; 95% CI: 1.21-1.67). CONCLUSION: Immunity to HBV in young pregnant women who had been vaccinated as neonates decreased in late adolescence.

Lifestyle modifications in the development of diabetes mellitus and metabolic syndrome in Chinese women who had gestational diabetes mellitus: a randomized interventional trial.

OBJECTIVES: To study whether lifestyle intervention can reduce the development of type II diabetes mellitus (DM) and metabolic syndrome (MS) among Chinese women who had gestational diabetes mellitus (GDM). METHODS: A prospective randomized controlled interventional trial of 450 women who had GDM and impaired glucose tolerance (IGT) postpartum. Advice on diet and exercise was given to the intervention group and reinforced in each follow-up visit. Women in both arms were followed for 36 months. Blood pressure and anthropometry were measured at each visit and blood tests were repeated. RESULTS: Fewer women in the intervention group developed DM (15 versus 19 %) but this was not statistically significant, and there was a lower incidence of DM among women over 40 years old. No difference was found in fasting glucose, insulin and homeostasis model assessment (HOMA) index. Both systolic and diastolic blood pressures, and triglyceride level, were lower but the significance was inconsistent among visits. BMI and percentage body fat were also significantly lower in the later visits. There was no difference in waist-hip ratio and basal metabolic rate. CONCLUSIONS: Our results demonstrate a trend towards lower incidence of type II DM within 3 years postpartum in GDM women given lifestyle advice, which also potentially offers protection against development of MS, in terms of lower blood pressure and triglyceride level. Women over 40 years old are more likely to benefit. Future studies should address ways to maximize compliance to lifestyle intervention as its potential benefits can be undermined by challenges of motherhood.

Antenatal screening - The roles of medical and family history, routine tests, and examination findings.

Routine antenatal care includes history, examination, and several standard laboratory tests. Other than the original objectives, the generated data is seldom utilised for screening for adverse obstetric and perinatal outcomes. Although new approaches and sophisticated tests improve prediction of complications such as pre-eclampsia, these may not be available globally. Maternal age, race/ethnicity, anthropometry, and method of conception can influence the occurrence of pregnancy complications. The importance of medical and obstetric history is well documented but often ignored. Routine test results including blood picture, hepatitis B and rubella serology, and sexually transmitted diseases, have additional health implications. The awareness of, and the ability to utilise, available antenatal data and tests in obstetric management will enhance individualised obstetric risk assessment thus facilitating the targeting of high-risk gravidae for further management, including the use of specific and technology-driven tests where available, and close monitoring and treatment, in a cost-effective manner.

Carbimazole embryopathy in a Chinese population: case series and literature review.

BACKGROUND: The data in the literature suggests that Methimazole (MMI)/Carbimazole (CMZ) embryopathy is rare. This study examined the incidence of CMZ embryopathy in the Hong Kong Chinese population and the factors associated with its development. METHODS: Of the 145 pregnant women with hyperthyroidism managed from 2008 to 2010, 29 (20%) had taken CMZ during pregnancy. The presence and details of birth defects, the dosage of CMZ, and the period of exposure during pregnancy were examined in these 29 pregnancies. All cases of CMZ embryopathy in the English literature were reviewed in the same way. RESULTS: Of the 27 babies (93.1%) with known outcome, 3 had aplasia cutis and 1 had an omphalocele in addition, and 1 affected baby had a sibling with aplasia cutis and patent vitellointestinal duct. The incidence of CMZ embryopathy in our study group is 11.1%. Amongst the 21 cases of CMZ embryopathy in the literature, 85% were exposed to a CMZ dosage of ≥20 mg/day, and the minimum duration of exposure being 7 weeks from last menstrual period. The most common abnormality is ectodermal anomaly (62%), followed by oro-nasal anomaly (48%), facial dysmorphism (38%), gastrointestinal anomaly (33%) and abdominal wall defect (19%). There was no relationship between the type of abnormality and the dosage or duration of exposure to CMZ. CONCLUSIONS: The incidence of CMZ embryopathy in our study group is 11.1%. Critical factors for its development are exposure to a CMZ dosage of ≥20 mg/day before 7 weeks of gestation. Genetic susceptibility may also play a role.

Prediction of women's long-term cardiometabolic risks using glycemic indices during pregnancy.

AIMS: To study the prediction of abnormal glucose tolerance (AGT), diabetes mellitus (DM), hypertension (HT) and metabolic syndrome (MetS) among Chinese women using glycemic indices in the mid-trimester of pregnancy. METHODS: A cohort of Chinese women who had had either normal glucose tolerance or gestational diabetes mellitus (GDM) during a pregnancy were assessed at a median of 8 and 15 years post-delivery. All women underwent a 50-g glucose challenge test (GCT) and a 75-g oral glucose tolerance test in the mid-trimester of the index pregnancy. A receiver operating characteristic curve was used to assess the prediction of AGT, DM, HT and MetS. RESULTS: All glycemic indices were significant predictors of AGT and DM, and the 2-h plasma glucose (PG) and GCT were predictive of HT, at both 8 and 15 years post-delivery. MetS can only be predicted by the fasting plasma glucose (FPG) and was confined to 15 years post-delivery. After adjustment for confounding variables, all glycemic indices were still independent predictors of AGT and DM at both 8 and 15 years post-delivery, except for FPG in predicting DM at 8 years, while only the 2-h PG remains an independent predictor of HT at 15 years. The optimal cut-off values for FPG, 2-h PG and GCT are 4.2 mmol/L, 7.2 mmol/L and 7.7 mmol/L, respectively; all are lower than the current cut-off thresholds for the screening and diagnosis of GDM. CONCLUSIONS: Women who had a glycemic level below the criteria for a positive screening test and below the diagnostic threshold for GDM still have a significant cardiometabolic risk.

Cerclage pessary for preventing preterm birth in women with a singleton pregnancy and a short cervix at 20 to 24 weeks: a randomized controlled trial.

OBJECTIVE: To determine the effectiveness of cerclage pessary in the prevention of preterm birth in asymptomatic Chinese women with a short cervix at 20 to 24 weeks. METHODS: Low-risk women carrying singleton pregnancies were screened with transvaginal ultrasound, and those with a cervical length <25 mm at 20 to 24 weeks were recruited into a randomized controlled trial, comparing the prophylactic use of cerclage pessary with expectant management. The analysis was by intent-to-treat. The primary outcome measure was preterm delivery before 34 weeks. RESULTS: Among 4438 screened women, 203 women (4.6%) met the inclusion criteria and 108 (58%) consented for the study. A total of 53 and 55 women were allocated to pessary and control groups, respectively. There was no difference in background demographics, including the mean cervical length (19.6 mm versus 20.5 mm) and the mean gestational age at randomization (both 21.9 weeks). Delivery before 34 weeks occurred in 9.4% and 5.5% (p = 0.46) in the pessary and the control groups, respectively. No differences in major side effects were noted between the groups. CONCLUSION: In our population, <5% had a cervical length of less than 25 mm at 20 to 24 weeks' gestation. The prophylactic use of cerclage pessary did not reduce the rate of preterm delivery before 34 weeks.

Spontaneous carotid cavernous fistula complicating pregnancy.

Carotid cavernous fistula is a well-documented but rare condition in pregnancy, about which there are a limited number of reports in the literature. We report such a case in a 41-year-old woman presenting with right-sided headache, proptosis, and diplopia at 37 weeks of gestation. She was subsequently diagnosed to have carotid cavernous fistula based on angiography. Embolisation was performed in the postpartum period. Carotid cavernous fistula has the potential of serious morbidity including visual loss and intracranial haemorrhage. It can be treated effectively by endovascular embolisation, which confers a good prognosis. Although headache is a common complaint during pregnancy, obstetrician should be aware of this condition if the clinical presentation is suspicious.

Effects of skin pressure from compression legwear on resting salivary cortisol and urinary catecholamines excretion in women.

BACKGROUND: The benefits of compression legwear (CL) have been demonstrated in the improvement of vascular function and venous return of the lower extremities, but their effect on autonomic nervous system (ANS) activities and human stress response remain controversial. OBJECTIVE: To investigate the possible effects of CLs on ANS activities and in inducing stress on the human body. MATERIALS AND METHODS: Resting salivary cortisol and urinary catecholamine (adrenaline and noradrenaline) excretions were examined in 12 healthy women. The effects of different skin pressure levels exerted by CL were studied by conducting a 4-hour prolonged standing and sitting wear trial with intermittent sampling of the aforementioned biochemical parameters. RESULTS: No statistically significant differences in resting salivary cortisol and urinary catecholamines were found between control and different clothing pressure conditions (light, mild, moderate, and strong), although the secretion of salivary cortisol (SSC) showed a significant decrease during the 180 minutes of the testing period that was maintained up to 10 minutes after the CL was removed for the studied pressure conditions. Urinary excretion of adrenaline and noradrenaline decreased with increasing pressure levels and was lower in response to higher clothing pressure when tested in the afternoon. CONCLUSION: Constant pressure exerted by CL did not cause any stimulation of the sympathetic nervous system. The prolonged wearing of CL while standing or sitting did not induce any stress on the human body, suggesting that CL can be safely used in the treatment of patients with venous disorders of the lower extremities.