Background: s/Aims: The critical view of safety (CVS) prevents bile duct injury, but severe inflammation hinders its achievement.This study evaluated the parkland grading scale (PGS) as a real-time intraoperative predictor of CVS attainment in a Southeast Asian population, establishing standardized clinical data for future artificial intelligence applications. Methods: This prospective observational study (January–June 2025) included 88 consecutive patients undergoing laparoscopic cholecystectomy by a single surgeon. PGS was assessed upon initial laparoscopic inspection. We analyzed correlations between PGS, CVS attainment (Strasberg’s criteria), operative time, and bail-out procedures using Spearman’s correlation and multivariate logistic regression. Results: Severe inflammation (PGS grade 4–5) was observed in 31.8% of patients. PGS exhibited a strong negative correlation with CVS score (p = −0.652; p < 0.001) and strong positive correlations with operative time and blood loss. A PGS threshold of 4 accurately predicted CVS failure (area under the curve = 0.863). Bail-out procedures were necessary in 11 cases (12.5%), all occurring in the PGS ≥ 4 group. Advanced age and diabetes mellitus were independent risk factors for CVS failure. Conclusions The PGS serves as a precise intraoperative early warning system. A score ≥ 4 indicates a significant risk of CVS failure, prompting safer bail-out strategies. Additionally, this study provides a standardized dataset vital for training future autonomous surgical risk assessment models.

Objective: This study aims to evaluate and compare the clinical and radiological outcomes of biportal endoscopic transforaminal lumbar interbody fusion (BE-TLIF) using banana-shaped versus straight interbody cages. BE-TLIF has emerged as a minimally invasive technique for treating lumbar spondylolisthesis. Banana-shaped and straight cages are the most commonly used cage types in BE-TLIF; however, their relative clinical and radiological outcomes remain unclear. Methods: This retrospective cohort study included 34 patients undergoing single-level BE-TLIF from January 2023 to May 2024. Seventeen patients received banana-shaped cages (group A) and 17 received straight cages (group B). Radiological assessments included disc height (DH), segmental lordosis angle (SLA), lumbar lordosis angle, cage position, and subsidence. Clinical outcomes were evaluated using the visual analogue scale (VAS) for back and leg pain and the Oswestry Disability Index (ODI). Fusion status was evaluated at 12 months postoperatively using computed tomography according to the modified Bridwell grading system. Results: Both groups demonstrated significant postoperative improvements in VAS and ODI scores, with no statistically significant differences between the groups. Radiological outcomes, including restoration of DH and SLA, were slightly better in the banana-shaped cage group, but this difference did not reach statistical significance. Straight cages were more often placed anteriorly, whereas banana-shaped cages tended to occupy the midlateral position. Fusion rates were comparable (100% vs. 94.1%, p>0.05), and subsidence occurred in 23.5% of cases in both groups. Conclusion Despite differences in cage positioning, banana-shaped and straight cages yielded comparable clinical and radiological outcomes in BE-TLIF. Either cage type can be effectively utilized in BE-TLIF, providing flexibility in surgical planning, particularly in resource-limited settings.

Aims: The objective of the study was to isolate bacteriophages and conduct a comprehensive analysis of their potential against Xanthomonas oryzae pv. oryzae (Xoo) strains in the Mekong Delta, Vietnam. Methodology and results: Twelve Xoo strains were isolated from rice fields located in the Mekong Delta, Vietnam. Among these strains, three strains Xoo L019, L020 and L024, showed the highest disease index of bacterial blight. Four phages specific to Xoo were isolated from soil, water and leaf samples, and their morphologies were determined. In a test against 12 Xoo strains, phage L541, MLA23 or W41 could infect 10 of the 12 Xoo strains, while phage LBH01 could infect 8 of the 12 Xoo strains. The stability of the phages to pH, organic solvents, UV-A and UV-B was also evaluated. Conclusion, significance and impact of study The initial characterization of the phages indicates their potential as biocontrol agents against bacterial blight in rice. The study is one of the very first studies about Xoo phages in rice in Vietnam.

Background: Anaplastic lymphoma kinase (ALK) mutations have been identified as a prominent cause of some familial and sporadic neuroblastoma (NB). ALK expression in NB and its relationship with clinical and histopathological features remains controversial. This study investigated ALK expression and its potential relations with these features in NB. Methods: Ninety cases of NB at the Department of Pathology, University of Medicine and Pharmacy at Ho Chi Minh City, Viet Nam from 01/01/2018 to 12/31/2021, were immunohistochemically stained with ALK (D5F3) antibody. The ALK expression and its relations with some clinical and histopathological features were investigated. Results: The rate of ALK expression in NB was 91.1%. High ALK expression (over 50% of tumor cells were positive with moderate-strong intensity) accounted for 65.6%, and low ALK expression accounted for 34.4%. All the MYCN-amplified NB patients had ALK immunohistochemistry positivity, most cases had high ALK protein expression. The undifferentiated subtype of NB had a lower ALK-positive rate than the poorly differentiated and differentiated subtype. The percentages of ALK positivity were significantly higher in more differentiated histological types of NB (p = .024). There was no relation between ALK expression and: age group, sex, primary tumor location, tumor stage, MYCN status, clinical risk, Mitotic-Karyorrhectic Index, prognostic group, necrosis, and calcification. Conclusions ALK was highly expressed in NB. ALK expression was not related to several clinical and histopathological features. More studies are needed to elucidate the association between ALK expression and ALK gene status and to investigate disease progression, especially the oncogenesis of ALK-positive NB.

Background: The identification of idiopathic inflammatory myopathies (IIMs) requires a comprehensive analysis involving clinical manifestations and histological findings. This study aims to provide insights into the histopathological and immunohistochemical aspects of IIMs. Methods: This retrospective case series involved 56 patients diagnosed with IIMs at the Department of Pathology, University of Medicine and Pharmacy at Ho Chi Minh City, from 2019 to 2023. The histology and immunohistochemical expression of HLA-ABC, HLA-DR, C5b-9, Mx1/2/3, and p62 were detected. Results: We examined six categories of inflammatory myopathy, including immunemediated necrotizing myopathy (58.9%), dermatomyositis (DM; 23.2%), overlap myositis (8.9%), antisynthetase syndrome (5.4%), inclusion body myositis (IBM; 1.8%), and polymyositis (1.8%). The average age of the patients was 49.7 ± 16.1 years, with a female-to-male ratio of 3:1. Inflammatory cell infiltration in the endomysium was present in 62.5% of cases, perifascicular atrophy was found in 17.8%, and fiber necrosis was observed in 42 cases (75.0%). Rimmed vacuoles were present in 100% of cases in the IBM group. Immunohistochemistry showed the following positivity rates: HLA-ABC (89.2%), HLA-DR (19.6%), C5b-9 (57.1%), and Mx1/2/3 (10.7%). Mx1/2/3 expression was high in DM cases. p62 vacuole deposits were noted in the IBM case. The combination of membrane attack complex and major histocompatibility complex I helped detect IIMs in 96% of cases. Conclusions The diagnosis of IIMs and their subtypes should be based on clinical features and histopathological characteristics. Immunohistochemistry plays a crucial role in the diagnosis and differentiation of these subgroups.

Artichoke (Cynara scolymus L.) is a perennial plant belonging to the Asteraceae family originating from the Mediterranean region. In Vietnam, there are some varieties of artichoke which are extensively cultivated and propagated in highland areas, however, there have been limited detailed scientific publications on the chemical composition and biological activity of artichoke grown in Vietnam. Therefore, this study provides a detailed description of the extraction, isolation, and structural determination of 20 natural secondary metabolites present in harvested artichoke. The antioxidant activity of the extract and the 9 isolated compounds are tested in 1,1-diphenyl-2-picrylhydrazyl radical scavenging and ex vivo malondialdehyde model. Among the selected compounds, 1-caffeoylquinic acid, 3-caffeoylquinic acid, chlorogenic acid, 4-caffeoylquinic acid, cynarin, 1,5-dicaffeoylquinic acid, 4,5-di-caffeoylquinic acid, cynaroside, and scolymoside exhibited strong radical scavenging activity with IC50 values ranging from 5.7 to 61.6 µM. In the malondialdehyde assay, 1,3-dicaffeoylquinic acid (or cynarin) showed the strongest activity with an IC50 value of 24.7 µM, followed by 1,5-di-caffeoylquinic acid (66.8 µM), and 4,5-di-caffeoylquinic acid (127.3 µM). This outcome contributes to establishing a database on the phytochemical and antioxidant activity of the Vietnamese artichoke.

Purpose: Although some immune protection from close contact with individuals who have coronavirus disease 2019 (COVID-19) has been documented, there is limited data on the seroprevalence of antibodies against severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) in individuals who were in lockdown with confirmed COVID-19 cases. This study investigated immunogenicity against SARS-CoV-2 in household members and people who lived near home-quarantined patients with COVID-19. Materials and Methods: This cross-sectional study was conducted during the community-based care that took place during lockdowns in District 10, Ho Chi Minh City, Vietnam from July to September 2021. SARS-CoV-2 antibody levels were determined in index cases of COVID-19, household contacts, and a no-contact group from the same area. Results: A total of 770 participants were included (355 index cases, 103 household contacts, and 312 no contacts). All index cases were unvaccinated, but >90% of individuals in the household and no-contact groups had received ≥1 vaccine dose. SARS-CoV-2 neutralizing antibodies (Nabs) were present in >77% of unvaccinated index cases versus 64%/65.4% in the householdo-contact groups (p=0.001). Antibody concentrations in unvaccinated index cases were significantly higher than those in household contacts and no contacts, with no difference between the latter groups. In all cases, antibody levels declined markedly ≥6 weeks after infection, and failed to persist beyond this time in the household and no-contact groups. Conclusion Community-based care may have helped to create community immunogenicity, but Nabs did not persist, highlighting a need for vaccination for all individuals before, or from 6 weeks after, infection with SARS-CoV-2.

Background: Little is known about the burden of hair loss following coronavirus disease 2019 (COVID-19) infection in older adults. This study investigated the prevalence and associated factors of hair loss in older outpatients in Vietnam. Materials and methods: Between March 2022 and July 2022, this multicenter cross-sectional study included 547 older patients (aged ≥ 60 years; mean age 68.5 ± 6.9 years; men 27.1%) from three post-COVID-19 clinics. Factors associated with hair loss were assessed using logistic regression. Results: In total, 63 patients (11.5%) experienced hair loss. All of the patients with hair loss exhibited diffuse type. In the adjusted model, factors associated with hair loss were women (odds ratio [OR], 3.36; 95% confidence interval [CI], 1.43 - 7.89; P = 0.005), single or divorced in marital status (OR, 3.27; 95% CI, 1.33 - 8.02; P = 0.01), and history of COVID-19 related hospitalization (OR, 5.17; 95% CI, 2.44 - 10.95; P < 0.001). Conclusion: Our study found a substantial prevalence of post-COVID-19 hair loss in older outpatients.

Background: Hypertension is a common disease in adults, also the leading cause of cardiovascular disease and premature death worldwide. The prevalence of hypertension has increased, especially in low- and middle-income countries. Therefore, hypertension screening is important to provide the basis and evidence for the development of timely intervention policies and programs. The objective of the “May Measurement Month” 2022 program is to investigate the prevalence of hypertension, drug treatment and blood pressure control in people in Thua Thien Hue province and to assess the risk factors surrounding hypertension. Subjects and Methods: This cross–sectional study collected data from volunteer adults (≥ 18 years old) in Thua Thien Hue province from 7/2022 to 8/2022. Sitting blood pressure had been measured in triplicate according to standardized specified methods of the International Society of Hypertension. Results: Average age 54.07 ± 18.17, there were 627 people (23.4%) with hypertension at the time of screening, 245 of which (39.1%) had never been diagnosed with hypertension before screening at the time. 724 people were on treatment with 1 or more types of drug, however, there were 337 people (46.5%) having their blood pressure not controlled. The statistics showed that 84.9% of volunteers were using at least 1 drug to treat hypertension. Related factors of hypertension are age, sex, overweight/obesity status, smoking, medical history of diabetes and medical history of COVID-19. The rate of subjects who had history of COVID-19 was 36.4%, including 31.6% of hypertension patients. Conclusion: The hypertension percentage of Thua Thien Hue population is still high and the rate of blood pressure control is still limited. There is a relationship between hypertension proportion and history of COVID-19. It is necessary to publish timely intervention measures to reduce the rate of hypertension and its risks to people.

Background: Good sleep is important for health and overall quality of life. However, sleep disorders are currently widespread and have particularly serious consequences, especially for students. Objectives: Surveying sleep quality according to the Pittsburgh scale (PSQI) and find out some related factors according to traditional medicine of regular students at the University of Medicine and Pharmacy, Hue University. Methods: A cross-sectional descriptive study on 421 regular students from 10 majors of the Hue University of Medicine and Pharmacy. Results: The percentage of students having poor sleep quality according to the PSQI scale was 57%. According to traditional medicine, heart blood deficiency accounted for the highest proportion with 30.4%, next are the deficiency of heart and spleen (22.1%), kidney yin deficiency (20.8%), qi deficiency of heart and gallbladder (14.6%) and stomach disharmony has the lowest rate with 12.1%. The percentage of students who need treatment with traditional medicine was 52.9%, acupress massage and herbal medicine were the two methods with the highest demand for treatment. Conclusion: Assessing sleep quality according to the PSQI scale the percentage of students with poor sleep quality was 57%. Heart blood deficiency accounted for the highest proportion. The demand for treatment of insomnia by traditional medicine was relatively high.