Objectives To determine the relationship between maternal serum uric acid levels and fetal/neonatal complications in women with pre‐eclampsia/eclampsia, and to establish a predictive threshold value. Methods A diagnostic test and historical cohort study conducted by prospective cross‐sectional data collection on pregnant women with pre‐eclampsia/eclampsia at Hue University Hospital, Vietnam, between March 2015 and July 2017. Pre‐eclampsia was diagnosed based on ACOG criteria. Serum uric acid levels were measured by enzymatic colorimetric testing using a Cobas c 501 analyzer (Roche Diagnostics, Mannheim, Germany). Fetal complications included intrauterine growth restriction, preterm delivery, fetal death, and neonatal death. Results There were 205 women enrolled. Serum uric acid at a cutoff of 393 μmol/L is a good predictor of fetal/neonatal complications (AUC 0.752), with 64.4% sensitivity and 79.5% specificity. High uric acid level (≥393 μmol/L) resulted in increased risk of preterm birth (OR 6.367, 95% CI 3.009–13.084), low Apgar scores (OR 5.514, 95% CI 1.877–16.198), intrauterine growth restriction (OR 7.188, 95% CI 3.592–14.382), and neonatal death (OR 7.818, 95% CI 1.614–37.867). There was no relationship between uric acid level and fetal death (OR 1.803, 95% CI 0.355–9.168). Conclusions Maternal serum uric acid concentration is a good predictor of fetal/neonatal outcomes in women with pre‐eclampsia/eclampsia.

Frontline healthcare workers (HCWs) involved in the COVID-19 response have a higher risk of experiencing psychosocial distress amidst the pandemic. Between July and September 2020, a second wave of the COVID-19 pandemic appeared in Vietnam with Da Nang city being the epicenter. During the outbreak, HCWs were quarantined within the health facilities in a bid to limit the spread of COVID-19 to their respective communities. Using the stress component of the 21-item Depression, Anxiety and Stress Scale (DASS-21), we assessed the level of stress among HCWs in Da Nang city. Between 30 August and 15 September 2020, 746 frontline HCWs were recruited to fill in an online structured questionnaire. Overall, 44.6% of participants experienced increased stress and 18.9% severe or extremely severe stress. In multivariable analysis, increased stress was associated with longer working hours (OR = 1.012; 95% CI: 1.004–1.019), working in health facilities providing COVID-19 treatment (OR = 1.58, 95% CI: 1.04–2.39), having direct contact with patients or their bio-samples (physicians, nurses and laboratory workers; OR = 1.42, 95% CI: 1.02–1.99), low confidence in the available personal protective equipment (OR = 0.846; 95% CI: 0.744–0.962) and low knowledge on COVID-19 prevention and treatment (OR = 0.853; 95% CI: 0.739–0.986). In conclusion, many frontline HCWs experienced increased stress during the COVID-19 outbreak in Da Nang city. Reducing working time, providing essential personal protective equipment and enhancing the knowledge on COVID-19 will help to reduce this stress. Moreover, extra support is needed for HCWs who are directly exposed to COVID-19 patients.

Health of reproductive tract is tightly associated with balance of microbial communities in this area. Bacterial vaginosis (BV) and vulvovaginal candidiasis (VVC) represent common disturbances of vaginal communities. Vaginal discharge due to BV or VVC is a very frequent reason for visiting gynaecologist. We aimed to evaluate the impact of the novel evidence-based probiotics on BV and VVC patients. The study group included 89 BV and 93 VVC patients (aged 18-50 years) who were recruited into randomised double-blind placebo-controlled two-arm parallel trial. The patients of each diagnosis group received oral or vaginal probiotic capsules, or placebo capsules during 3 months. A probiotic capsule contained two (DSM32717 and DSM32720, in case of BV) or three (DSM32720, DSM32718 and DSM32716, in case of VVC) Lactobacillus crispatus strains. Vaginal, intestinal and general health was monitored weekly by questionnaire. Blood analyses were done in the beginning and at the end of trial. Vaginal samples were collected monthly, microscopic and molecular analyses were performed. The study revealed that both oral and vaginal capsules reduced the signs and symptoms in BV patients. Remarkable improvement was noted in Nugent score, amount and smell of discharge, but also in itching/irritation. Consumption of vaginal probiotics significantly increased the lactobacilli counts in their vagina while mean proportion of some BV-related bacteria decreased. In VVC patients, both oral and vaginal capsules lowered the combined score of two most important symptoms, amount of discharge and itching/irritation. In conclusion, the novel formulations of evidence-based well-focused probiotic L. crispatus strains are effective against BV and VVC being suitable for both vaginal and oral administration. Clinical trial registration: ISRCTN34840624, BioMed Central

Fishermen work in an unfavorable working environment, which faces many disadvantages such as inclement weather conditions, prolonged working time with hard labor and are effected by adverse environmental factors, in which noise is the most common agent but there are very few studies on the effects of noise to fishermen's health especially on blood pressure. Methodology: A cross-sectional study was conducted on 159 fishermen who were working in 14 offshore ships, a sound level meter was used for noise measurement and the noise exposures were calculated based on the average working time in 8 hours. Questionnaires were used for interviewing, blood pressure was measured by trained local doctors. Result: It was found that 71.1% fishermen were expose to the working noise which is over 85 dBA for 8 working hours a day. The highest average sound level was recorded in the engine room (min-max: 91.8-96.2), follow by driving cabin (min-max: 83.1-92.2). Blood pressure measurements showed a result of 28.9% hypertensive fishermen. There was not statistically significant between hypertension and exposure to noise. Conclusions: It can be concluded that almost three quarters of the fishermen exposed to noise in the working environment exceeds 85 dBA for 8 hours. Futher studies are required to provide comprehensive approach between noise and hypertension.

Introduction: The goal of this study was to identify the profile of genital tract infections and their relationship with clinical and demographic parameters as well as tubal diseases among infertile women in Vietnam. Methodology: In this cross-sectional descriptive study, we enrolled 597 women undergoing infertility treatment at the Center for Reproductive Endocrinology & Infertility, Hue University Hospital, Vietnam. All of the study participants were interviewed and examined by a gynecologist. Consecutive tests were then conducted including direct microscopy examination (wet mount and Gram stain), vaginal culture, polymerase chain reaction (PCR) for chlamydia diagnosis from a cervical canal swab, and a blood test for syphilis detection. A hysterosalpingogram (HSG) was carried out to examine the uterine cavity and Fallopian tubes. Results: A gynecologic infection was diagnosed in 43.4% (259/597) of the infertile women. Bacterial vaginosis was the most common condition at 19.6%of the cases. Candida spp., Chlamydia trachomatis, and Trichomonas vaginalis infections accounted for 17.4%, 3.7%, and 0.3%, respectively. Normal HSG results accounted for 87.4% of the women while 5.5% had 2-sided tubal occlusions, 5.4% had 1-sided tubal occlusions, 1.0% had 1-sided hydrosalpinx, and 0.7% had 2-sided hydrosalpinx. There was no significant association between tubal diseases and current infections; however, aerobic vaginitis increased the risk of tubal diseases by 2.4 times. Conclusions: A marked proportion of infertile Vietnamese women have genital tract infections that can significantly influence their reproductive function and performance. These infections should be routinely screened and treated properly to prevent their consequences, such as infertility, which is especially important in developing countries.

Background: This study investigated the overall survival (OS) at 1-year, 3-years, and 5-years after colorectal cancer (CRC) diagnosis and examined the prognostic factors of mortality among patients with CRC in Vietnam's central region. Methods: This ambidirectional cohort study included patients newly diagnosed with CRC at a tertiary hospital in Vietnam's central region between 2013 and 2019. Survival duration was calculated from the surgery date or the first day of CRC-specific treatment until the date of death or the study's end date, July 31, 2020. Kaplan-Meier methods and log-rank test were used to estimate and compare the OS between the subgroups, respectively. The Cox proportional-hazards (PH) regression analysis was applied to estimate the magnitude of the effects between prognostic factors and outcome. Results: The median follow-up was 24 months (interquartile range: 13-43 months). The OS rate dropped significantly to 84.7%, 56.19%, and 45.01% at 1-year, 3-years, and 5-years after diagnosis, respectively. The median OS was 48.59 months (39.34 -57.93 months) for the rectum and colon cases. In the multivariate analysis, a higher mortality risk was observed in patients with an advanced-stage CRC (HRadj, 3.04; 95% confidence interval [CI], 1.79-5.18), who were underweight (<18.5 kg/m2; HRadj, 1.65; 95%CI, 1.03-2.65), and had elevated preoperative carcinoembryonic antigen (CEA) level (>5.0 ng/mL; HRadj, 1.63; 95%CI, 1.03-2.59). Additionally, younger patients (<50 years) had a poorer OS than the middle-aged group (60-69 years). Conclusion: Our findings indicate that <50% of Vietnamese patients with CRC survive until 5-years after diagnosis. Several individual factors that contribute to the poor OS of patients with CRC, including young age, underweight, and elevated preoperative CEA level, should be evaluated and managed. Early diagnoses through active routine examination of or screening programs for high-risk groups should be prioritized.

Objective This study aimed to determine the role of sperm DNA fragmentation as a marker that could predict early pregnancy loss (EPL), either independently or in combination with another marker or markers, after intracytoplasmic sperm injection (ICSI) cycles. Methods This prospective descriptive cohort study retrieved data from 162 couples who underwent their first ICSI cycles at the Center for Reproductive Endocrinology and Infertility of Hue University Hospital in Vietnam from May 2018 to December 2019. General characteristics, semen parameters, sperm DNA fragmentation index (DFI), fertilization, embryo development, pregnancy rates, and EPL were assessed. The receiver-operating characteristic (ROC) method was performed to identify the threshold of DFI in EPL. Multivariate analysis was used to demonstrate the relationship between the sperm DNA fragmentation level and EPL. Results Of 162 ICSI cycles, 23 (14.2%) involved EPL. There was no significant difference between the sperm DNA fragmentation rate and the overall rate of pregnancy loss, although the negative pregnancy outcome group had a median DFI that was higher than that of the positive pregnancy outcome group (20% vs 17.8%). The ROC analysis indicated that a sperm DNA fragmentation rate of 16.6% was the priority cut-off that could be used to distinguish EPL with a sensitivity of 73.9% (95% confidence interval [CI], 67.15–80.67) and specificity of 47.48% (95% CI, 39.79–55.17). The multivariate analysis confirmed that in female factors such as age, body mass index (BMI), and sperm DNA fragmentation level affected the EPL rate. However, a combination of the sperm DNA fragmentation level and female age or female BMI could not sufficiently predict EPL. Conclusion EPL can be affected by multiple factors including sperm DNA fragmentation; however, there is no sufficient evidence indicating that sperm DNA fragmentation, both as a single marker and combined with other markers, is a good predictor of EPL.

Frontline healthcare workers (HCWs) involved in the COVID-19 response stand a higher risk of experiencing psychosocial distress amidst the pandemic. Between July and September 2020, a second wave of the COVID-19 pandemic appeared in Vietnam with Da Nang city being the epicenter. During the outbreak, HCWs were quarantined within the health facilities in a bid to limit the spread of the COVID-19 to their respective communities. Using the stress component of the 21-item Depression, Anxiety and Stress Scale (DASS-21), we assessed the level of stress among HCWs in Da Nang city. Between 30th August and 15th September 2020, 746 frontline HCWs were recruited to fill an online structured-questionnaire. Overall, 44.6% of participants experienced increased stress and 18.9% severe or extremely severe stress. In multivariable analysis, increased stress was associated with longer working hours (OR=1.012; 95% CI: 1.004–1.019), working in health facilities providing COVID-19 treatment (OR=1.58, 95% CI: 1.04-2.39), having direct contact with patients or their bio-samples (physicians, nurses and laboratory workers; OR=1.42, 95% CI: 1.02-1.99), low confidence in the available personal protective equipment (OR=0.846; 95% CI: 0.744–0.962), and low knowledge on COVID-19 prevention and treatment (OR=0.853; 95% CI: 0.739-0.986). In conclusion, many frontline HCWs experienced an increased stress during the COVID-19 outbreak in Da Nang city. Reducing working time, providing essential personal protective equipment, enhancing of the knowledge on COVID-19 will help to reduce this stress. Moreover, extra support is needed for HCWs who are directly exposed to COVID-19 patients.