Long- and short-term survival following laparoscopic and open pancreaticoduodenectomy for patients with periampullary tumors in Vietnam.

BACKGROUND: Laparoscopic pancreaticoduodenectomy (LPD) is a less invasive alternative to the traditional open pancreaticoduodenectomy (OPD) approach used to treat periampullary tumors. However, previous studies examining the advantages of this surgery over OPD have produced mixed results. Here, a retrospective observational approach was used to compare the short- and long-term outcomes of patients with periampullary tumors who underwent LPD or OPD at a single institution in Vietnam. MATERIALS AND METHODS: Data were obtained from hospital medical records collected over five years from patients that underwent OPD or LPD. Information on demographics, medical status, tumor characteristics, operative variables, complications, and mortality was examined. Survival curves were constructed and the stepwise multivariate Cox proportional hazard model was used to identify the factors associated with the risk of death following surgery. RESULTS: Eighty-four patients aged 26-80 years were included. Twenty-two patients underwent LPD and 62 received OPD. The operative time for the LPD group was significantly longer than that for the OPD group, and the LPD group was less likely to require a blood transfusion during surgery. While the short- and long-term survival rates did not differ for the procedures, the factors associated with the risk of death following surgery were tumors at the N1 stage and an age >65 years. CONCLUSION: Both LPD and OPD procedures for treating periampullary tumors exhibited comparable safety profiles, with similar short-term outcomes and long-term survival rates observed. Future studies with a larger sample size should be conducted to further examine the treatment outcomes following these surgical approaches.

Normal values for high-resolution anorectal manometry in healthy young adults: evidence from Vietnam.

BACKGROUND: High-resolution anorectal manometry (HRAM) has been developed to improve measurement of anorectal functions. This study aims to identify normal HRAM values in healthy young Vietnamese adults. METHODS: We conducted a cross-sectional study at the National Hospital of Traditional Medicine (Hanoi, Vietnam) from July through December 2014. Healthy young adults were invited to participate in the study. All anorectal measurement values were performed using the ISOLAB high-resolution manometry system. Differences between groups were analyzed using Student's t-tests. RESULTS: Thirty healthy young adults, including 15 males and 15 females aged 19-26 years, were recruited. Mean functional anal canal length was 3.4 ± 0.5 cm (range: 2.4-4.8 mm). Mean maximum resting pressure, mean maximum squeezing pressure, mean maximum coughing pressure, and mean maximum strain pressure were 65.5, 168.0, 125.9, and 84.2 mm Hg, respectively. All anal pressure values were significantly different between males and females. For rectal sensation measurements, only the volume at first sensation was significantly higher in males than in females. CONCLUSIONS: This study provides normal HRAM value for healthy young adults in Vietnam. Sex may influence anal pressure and first rectal sensation values in this cohort. Further studies should be conducted in order to improve the quality of HRAM normal values and to confirm the effects of sex.

Normal Values and Associated Factors in Highresolution Anorectal Manometry in Healthy Vietnamese Adults / Valores normais e fatores associados na manometria anorretal de alta resolução em adultos vietnamitas saudáveis

Abstract Introduction The present study aims to identify normal high-resolution anorectal manometry (HRAM) values and related factors in healthy Vietnamese adults. Methods The present cross-sectional study was conducted at the Viet Duc hospital, Hanoi, Vietnam, during April and May 2019. Healthy volunteers were recruited to participate in the study. Anorectal measurement values from the digestive tract, including pressure, were recorded. Results A total of 76 healthy volunteers were recruited. The mean functional anal canal length was 4.2 ± 0.5 cm, while the mean anal high-pressure zone length was 3.4 ± 0.5 cm. Themean defecation index was 1.4 ± 0.8, with values ranging from 0.3 to 5.0. The mean threshold volume to elicit the rectoanal inhibitory reflex (RAIR) was 18.1 mL. The mean rectal sensation values were 32.4mL, 81.6mL, and 159 mL for first sensation, desire to defecate, and urge to defecate, respectively. Dyssynergic patterns occurred in ~ 50% of the study participants and included mainly types I (27.6%) and III (14.6%). There were significant differences between male and female patients in terms of maximum anal squeeze pressure, maximum anal cough pressure, maximum anal strain pressure, maximum rectal cough pressure, and maximum rectal strain pressure (all p<0.01). Conclusions The present study establishes normal HRAM values in healthy Vietnamese adults, particularly regarding normal values of anorectal pressure and rectal sensation. Further studies that include larger sample sizes should be conducted to further confirm the constants and their relationships.

Resumo Introdução O presente estudo tem como objetivo identificar valores normais de manometria anorretal de alta resolução e fatores relacionados em adultos vietnamitas saudáveis. Métodos O presente estudo transversal foi conduzido no hospital Viet Duc, Hanói, Vietnã, durante abril e maio de 2019. Voluntários saudáveis foram recrutados para participar do estudo. Valores de medição anorretal, incluindo pressão do trato digestivo, foram registrados. Resultados Um total de 76 voluntários saudáveis foram recrutados. O comprimento funcional médio do canal anal foi de 4,2 ± 0,5 cm, enquanto o comprimento médio da zona anal de alta pressão foi de 3,4 ± 0,5 cm. O índice médio de defecação foi de 1,4 ± 0,8, com valores variando de 0,3 a 5,0. O volume limite médio para eliciar o reflexo inibitório retoanal (RAIR, sigla em inglês) foi de 18,1 mL. Os valores médios da sensação retal foram 32,4mL, 81,6mL e 159 mL para a primeira sensação, o desejo de defecar e a urgência de defecar, respectivamente. Os padrões dissinérgicos ocorreram em aproximadamente 50% dos participantes do estudo e incluíram principalmente os tipos I (27,6%) e III (14,6%). Houve diferenças significativas entre homens e mulheres na pressão de compressão anal máxima, pressão de tosse anal máxima, pressão de distensão anal máxima, pressão de tosse retal máxima e pressão de distensão retal máxima (todos p<0,01). Conclusões O presente estudo estabelece valores normais de HRAM em adultos vietnamitas saudáveis, particularmente no que diz respeito aos valores normais de pressão anorretal e sensação retal. Mais estudos que incluam tamanhos de amostra maiores devemser realizados a fim de confirmar melhor as constantes e suas relações.

Trends and Factors Associated with Comprehensive Knowledge about HIV among Women in Vietnam.

This study aimed to assess the trends and associated factors of comprehensive knowledge about HIV among women in Vietnam using the dataset of the Vietnam Multiple Indicator Cluster Surveys (MICSs) in 2000, 2006, 2011, and 2014. The outcome variable was comprehensive knowledge about HIV, defined as the ability to correctly answer three knowledge questions and to reject the three most common misconceptions about HIV prevention. We found that comprehensive knowledge about HIV increased from 26.1% in 2000 to 44.1% in 2011, but it decreased slightly between 2011 and 2014, from 44.1% to 42.4%. Increased comprehensive knowledge about HIV was associated with women who had higher education and those in the fourth and fifth quintiles of household wealth in all four rounds of the MICS. Comprehensive knowledge about HIV among women was also associated with those who had ever been tested for HIV and those with knowledge of where to be tested for HIV. Women in the urban areas were more likely to have higher levels of comprehensive knowledge about HIV as compared to the women in the rural areas in 2000, 2006, and 2011 but not in 2014. Comprehensive knowledge about HIV among women in Vietnam increased from 2000 to 2014, but it was still relatively low.

Anorectal Functional Outcomes Following Doppler-Guided Transanal Hemorrhoidal Dearterialization: Evidence from Vietnam.

INTRODUCTION: Doppler-guided transanal hemorrhoidal dearterialization (THD) was considered a less invasive and innovative method to treat hemorrhoidal disease, but it may impact the anal area during dearterialization and mucopexy. Thus, this study aimed to assess any changes in anorectal manometry of grade III and IV hemorrhoidal patients following THD treatment. METHODS: This prospective observational study was conducted with patients who had grades III and IV hemorrhoidal disease. The patients were treated using THD at the Department of Surgery in the National Hospital of Traditional Medicine (Hanoi, Vietnam) between June 2012 and December 2013. Anorectal manometry was performed prior to THD and again between 6 and 12 months following the procedure. RESULTS: A total of 40 patients were enrolled in the study, including 32 with grade III hemorrhoids and 8 with grade IV hemorrhoids. The proportion of male patients (65%) was higher than that of female patients (35%), and the majority of patients (82.5%) were > 40 years old. The mean duration of symptoms prior to treatment was 12.3 years. The mean length of the anal sphincter was unchanged before and after THD (3.64 ± 0.40 cm prior to treatment vs. 3.66 ± 0.48 cm following treatment; p = 0.57). Significant differences in treatment-related changes were detected for all anorectal manometric measurements except maximum squeezing pressure (p < 0.05). No patient showed anal stenosis or fecal incontinence. CONCLUSION: The THD technique did not change the length of the anal sphincter 6 months after hemorrhoid treatment. The values of anal pressure and rectal sensation decreased almost significantly between treatment and the follow-up visit. We suggest that further studies, which include larger sample sizes, should be conducted to confirm THD effectiveness in terms of anorectal functions.

Identification of BK Virus Genotypes in Recipients of Renal Transplant in Vietnam.

OBJECTIVES: This study aims to investigate the prevalence and distribution of BK polyomavirus (BKV) genotypes in recipients of renal transplant in Vietnam. METHODS: One hundred six patients who underwent renal transplantation were included in this study. These patients were from the Department of Nephrology, Military Hospital 103, Vietnam Military Medical University. Quantification and genotyping of the BK virus was performed using in-house molecular methods from urine and plasma samples. RESULTS: BKV infection was detected in 82 patients (77.4%), including 58 patients who had the presence of both BK viremia and BK viruria, and 24 patients (22.60%) with BKV positive findings in the urine alone. Particularly, 16 patients (15.09%) had high BK viremia >104 copies/mL and 20 patients (18.9%) had BK viruria >107 copies/mL. BK virus nephropathy (BKVN) was confirmed in 6 patients (5.66%) by immunohistochemistry examination. Genotyping of BKV was performed successfully in 50 out of the 82 patients, with 36 out of 50 (72%) belonging to the BKV-I subtype and 14 out of 50 (28%) belonging to the BKV-IV subtype; no cases of genotypes II or III were observed. Using phylogenetic analysis of the subgroups, the BKV-I/b-1 subtype was found the predominant subgroup (100%), whereas BKV-IV included 21.43% of IV/a-1, 6.67% of IV/a-2, and 50% of IV/c-1, respectively. There remain 3 cases of BKV-IV (21.43%) that could not be categorized into any subgroups. In the 6 patients diagnosed BKVN, 5 of them were infected with subgroup I/b-1 (83.3%) and 1 patient was infected with subgroup IV/c-1 (16.7%). No significant difference between BKV genotypes was observed in relation to age, sex, HLA mismatch, viral load, BKVN, and immunosuppressive therapy. CONCLUSIONS: This research indicated a high prevalence of BKV infection and BKV-I was predominant, followed by BKV-IV among recipients of renal transplant in Vietnam.

Trends in Socioeconomic Inequalities in the Use of Antenatal Care Services by Women Aged 15 to 49 Years in Vietnam.

Despite considerable variations in the use of antenatal care (ANC) services in Vietnam, limited information is available on socioeconomic inequalities concerning the use of ANC services. This study aimed to assess the trends and changes in socioeconomic inequalities in the use of ANC services by women aged 15 to 49 years in Vietnam from 2006 to 2014. We used data from the Multiple Indicator Cluster Survey conducted in 2006, 2011, and 2014. The percentage of women who received ANC services increased significantly from 26.5% in 2006 to 42.7% in 2011 and reached 56.6% in 2014. We found a decreasing trend in the concentration indices of the use of ANC services from 0.36 in 2006 to 0.19 in 2014. The common factors significantly associated with the higher percentage of the use of ANC services in 2006, 2011, and 2014 were women belonging to the Kinh and Hoa ethnic groups and belonging to wealthier groups. Our study showed a reduction in socioeconomic inequality in the use of ANC services between 2004 and 2014. However, significant inequalities still exist in the use of ANC services based on women's education, ethnicity, and economic status.

Comparison of Doppler-Guided Transanal Hemorrhoidal Dearterialization for Grade III and IV Hemorrhoids in Vietnam.

INTRODUCTION: This study aimed to assess the short- and long-term outcomes of Doppler-guided transanal hemorrhoidal dearterialization (THD) for grade III and IV hemorrhoidal disease in Vietnam. METHODS: In a prospective observational design, patients treated for grade III and IV hemorrhoidal disease with the THD method at the National Hospital of Traditional Medicine (Hanoi, Vietnam) were included between June 2012 and December 2013. Patients were evaluated postoperatively at the time they were discharged from the hospital (short-term outcome) and 6 months after surgery (long-term outcome). RESULTS: A total of 128 patients were enrolled in the study, 94 were classified with grade III disease and 34 with grade IV. Grade IV hemorrhoidal patients reported on average 18.2 years of disease symptom duration, while grade III hemorrhoidal patients reported 11.2 years. All patients with grade III and grade IV hemorrhoidal disease had good outcomes at discharge day and reported to return to work in a median of 6 days after THD. At long-term follow-up, the results were good for 80.9% of patients from grade III hemorrhoidal disease and 61.8% of patients from grade IV hemorrhoidal disease. Patient satisfaction with the procedure and outcomes was 93.6% for grade III and 85.3% for grade IV hemorrhoidal patients. CONCLUSIONS: The THD technique was shown to be safe for both grade III and IV hemorrhoidal patients. The THD technique showed better results with grade III hemorrhoidal patients as compared to grade IV hemorrhoidal patients.