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  1. Article ; Online: Application of multispectral UAV to estimate mangrove biomass in Vietnam: A case study in Dong Rui commune, Quang Ninh Province

    Ngo, Dung Trung / Nguyen, Hoi Dang / Nguyen, Khanh Quoc / Dang, Cuong Hung / Nguyen, Hieu Huu Viet / Dang, Ngoc Thi / Pham, Thanh Viet

    One Ecosystem. 2023 July 10, v. 8 p.e103760-

    2023  

    Abstract: Mangroves play an important role in coastal estuarine areas with different ecological functions, such as reducing the impact of waves and currents, accumulating biomass and sequestering carbon. However, estimation of terrestrial biomass in mangrove areas, ...

    Abstract Mangroves play an important role in coastal estuarine areas with different ecological functions, such as reducing the impact of waves and currents, accumulating biomass and sequestering carbon. However, estimation of terrestrial biomass in mangrove areas, especially in Vietnam, has not been fully studied. The application of unmanned aerial vehicles (UAV), mounted with multispectral cameras combined with field verification is an effective method for estimating terrestrial biomass for mangroves, as it reduces field survey time and allows for greater spatial range research. In this study, ground biomass was estimated for the mangrove area in the Dong Rui commune, based on multispectral image data obtained from UAV and survey results in 16 standard cells measuring actual biomass according to four regression models: Log-Log, Log-Lin, Lin-Log and Lin-Lin. The results of comparing the data from these four models show that the log-log model has the highest accuracy with a high correlation coefficient (R² = 0.831). Based on the results of the analysis and selection of ground-based biomass estimation models, a biomass map was established for the UAV flying area in the Dong Rui mangrove forest with biomass values ranging from 20 Mg/ha to 150 Mg/ha. In summary, we present a biomass estimation method through four basic linear regression models for mangrove areas, based on multispectral image data obtained from ultrahigh-resolution UAV. The resulting research results can serve as a basis for managers to calculate and synchronise the payment of carbon services, thus contributing to effectively promoting the livelihoods of local people.
    Keywords biomass ; carbon ; case studies ; estuaries ; mangrove forests ; models ; multispectral imagery ; regression analysis ; surveys ; Vietnam ; regression model ; tree height ; mapping mangrove
    Language English
    Dates of publication 2023-0710
    Publishing place Pensoft Publishers
    Document type Article ; Online
    ISSN 2367-8194
    DOI 10.3897/oneeco.8.e103760
    Database NAL-Catalogue (AGRICOLA)

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  2. Article ; Online: Oral Rivaroxaban Versus Standard Therapy in Acute Venous Thromboembolism Treatment for Vietnamese Patients

    My Hanh Bui / Nguyen Truong Son / Pham Thanh Viet / Nguyen Hoang Hiep / Toi Chu Dinh

    Open Access Macedonian Journal of Medical Sciences, Vol 7, Iss

    2019  Volume 24

    Abstract: BACKGROUND: Direct oral anticoagulant-rivaroxaban may provide a simple, fixed-dose therapy for the management of hospital-acquired, acute venous thromboembolism (VTE) and for extended treatment, its use could skip lab observation and/or parenteral ... ...

    Abstract BACKGROUND: Direct oral anticoagulant-rivaroxaban may provide a simple, fixed-dose therapy for the management of hospital-acquired, acute venous thromboembolism (VTE) and for extended treatment, its use could skip lab observation and/or parenteral treatment. AIM: Compare the efficacy and safety (EAS) of RIV vs. standard therapy (SDTD) in a cohort of Vietnamese patients diagnosed with symptomatic, acute VTE. METHODS: An open-label, case-control, prospective study was conducted to check the efficacy and safety (EAS) of oral rivaroxaban (RIV) alone (15 mg 2 times/day for 3 weeks, then 20 mg 1 time/day) in a comparison to the standard therapy (STDT) (enoxaparin 1.0 mg/kg 2 times/day combining with vitamin K antagonist). Patients were treated for 6 months and followed-up for suspect reoccurring VTE and bleeding. RESULTS: A total 187 patients were enrolled into study. 83 were provided rivaroxaban and 104 received enoxaparin overlapping with vitamin K antagonist (VKAs). Recurrent VTE occurred in 3 (3.6%) rivaroxaban-received patients compared with 5 (4.8%) standard-treatment received patients (OR: 0.74, 95% CI, 0.17 to 3.20, p > 0.05). Major bleeding events were found in 1 (1,8%) and 4 (3.9%) cases in the RIV treated and STDT cohort, respectively (OR: 0.30, 95% CI, 0.03 to 2.76, p > 0.05). CONCLUSION: The finding of this study in Vietnamese patients with acute VTE presented comparable EAS profile with RIV versus STDT, consistent with those found in global population.
    Keywords Oral rivaroxaban ; Standard therapy ; Acute venous thromboembolism ; Vietnamese patients ; Medicine ; R
    Subject code 610
    Language English
    Publishing date 2019-12-01T00:00:00Z
    Publisher ID Design 2012/DOOEL Skopje
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  3. Article ; Online: Respiratory complications after surgery in Vietnam

    Bui My Hanh / Khuong Quynh Long / Le Phuong Anh / Doan Quoc Hung / Duong Tuan Duc / Pham Thanh Viet / Tran Tien Hung / Nguyen Hong Ha / Tran Binh Giang / Duong Duc Hung / Hoang Gia Du / Dao Xuan Thanh / Le Quang Cuong

    The Lancet Regional Health. Western Pacific, Vol 10, Iss , Pp 100125- (2021)

    National estimates of the economic burden

    2021  

    Abstract: Background: Estimating the cost of postoperative respiratory complications is crucial in developing appropriate strategies to mitigate the global and national economic burden. However, systematic analysis of the economic burden in low- and middle-income ... ...

    Abstract Background: Estimating the cost of postoperative respiratory complications is crucial in developing appropriate strategies to mitigate the global and national economic burden. However, systematic analysis of the economic burden in low- and middle-income countries is lacking. Methods: We used the nationwide database of the Vietnam Social Insurance agency and extracted data from January 2017 to September 2018. The data contain 1 241 893 surgical patients undergoing one of seven types of surgery. Propensity score matching method was used to match cases with and without complications. We used generalized gamma regressions to estimate the direct medical costs; logistic regressions to evaluate the impact of postoperative respiratory complications on re-hospitalization and outpatient visits. Findings: Postoperative respiratory complications increased the odds of re-hospitalization and outpatient visits by 3·49 times (95% CI: 3·35–3·64) and 1·39 times (95% CI: 1·34–1·45) among surgical patients, respectively. The mean incremental cost associated with postoperative respiratory complications occurring within 30 days of the index admission was 1053·3 USD (95% CI: 940·7–1165·8) per procedure, which was equivalent to 41% of the GDP per capita of Vietnam in 2018. We estimated the national annual incremental cost due to respiratory complications occurring within 30 days after surgery was 13·87 million USD. Pneumonia contributed the greatest part of the annual cost burden of postoperative respiratory complications. Interpretation: The economic burden of postoperative respiratory complications is substantial at both individual and national levels. Postoperative respiratory complications also increase the odds of re-hospitalization and outpatient visits and increase the length of hospital stay among surgical patients. Funding: The authors did not receive any funds for conducting this study
    Keywords Postoperative respiratory complications ; Economic burden ; Re-hospitalization ; Outpatient visits ; Vietnam ; Public aspects of medicine ; RA1-1270
    Subject code 333
    Language English
    Publishing date 2021-05-01T00:00:00Z
    Publisher Elsevier
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  4. Article ; Online: Cost of postoperative sepsis in Vietnam.

    Bui, My Hanh / Khuong, Quynh Long / Le, Phuong Anh / Nguyen, The Anh / Doan, Quoc Hung / Duong, Tuan Duc / Pham, Hoang Ha / Pham, Thanh Viet / Tran, Tien Hung / Nguyen, Hong Ha / Tran, Binh Giang / Duong, Duc Hung / Dao, Xuan Co / Du Hoang, Gia / Dao, Xuan Thanh / Nguyen, Truong Son / Le, Quang Cuong

    Scientific reports

    2022  Volume 12, Issue 1, Page(s) 4876

    Abstract: Despite improvements in medical care, the burden of sepsis remains high. In this study, we evaluated the incremental cost associated with postoperative sepsis and the impact of postoperative sepsis on clinical outcomes among surgical patients in Vietnam. ...

    Abstract Despite improvements in medical care, the burden of sepsis remains high. In this study, we evaluated the incremental cost associated with postoperative sepsis and the impact of postoperative sepsis on clinical outcomes among surgical patients in Vietnam. We used the national database that contained 1,241,893 surgical patients undergoing seven types of surgery. We controlled the balance between the groups of patients using propensity score matching method. Generalized gamma regression and logistic regression were utilized to estimate incremental cost, readmission, and reexamination associated with postoperative sepsis. The average incremental cost associated with postoperative sepsis was 724.1 USD (95% CI 553.7-891.7) for the 30 days after surgery, which is equivalent to 28.2% of the per capita GDP in Vietnam in 2018. The highest incremental cost was found in patients undergoing cardiothoracic surgery, at 2,897 USD (95% CI 530.7-5263.2). Postoperative sepsis increased patient odds of readmission (OR = 6.40; 95% CI 6.06-6.76), reexamination (OR = 1.67; 95% CI 1.58-1.76), and also associated with 4.9 days longer of hospital length of stay among surgical patients. Creating appropriate prevention strategies for postoperative sepsis is extremely important, not only to improve the quality of health care but also to save health financial resources each year.
    MeSH term(s) Databases, Factual ; Humans ; Length of Stay ; Patient Readmission ; Postoperative Complications/epidemiology ; Retrospective Studies ; Risk Factors ; Sepsis/epidemiology ; Vietnam/epidemiology
    Language English
    Publishing date 2022-03-22
    Publishing country England
    Document type Journal Article
    ZDB-ID 2615211-3
    ISSN 2045-2322 ; 2045-2322
    ISSN (online) 2045-2322
    ISSN 2045-2322
    DOI 10.1038/s41598-022-08881-y
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  5. Article ; Online: Economic burden of venous thromboembolism in surgical patients: A propensity score analysis from the national claims database in Vietnam.

    Bui, My Hanh / Le, Quang Cuong / Duong, Duc Hung / Nguyen, Truong Son / Tran, Binh Giang / Duong, Tuan Duc / Tran, Tien Hung / Nguyen, Huu Chinh / Kieu, Thi Tuyet Mai / Nguyen, Hong Ha / Hoang, Long / Nguyen, Thanh Binh / Pham, Thanh Viet / Hoang, Thi Hong Xuyen

    PloS one

    2020  Volume 15, Issue 4, Page(s) e0231411

    Abstract: Background: Venous thromboembolism (VTE) associated with surgery can cause serious comorbidities or death and imposes a substantial economic burden to society. The study examined VTE cases after surgery to determined how this condition imposed an ... ...

    Abstract Background: Venous thromboembolism (VTE) associated with surgery can cause serious comorbidities or death and imposes a substantial economic burden to society. The study examined VTE cases after surgery to determined how this condition imposed an economic burden on patients based on the national health insurance reimbursement database. Methods: This retrospective analysis adopted the public payer's perspective. The direct medical cost was estimated using data from the national claims database of Vietnam from Jan 1, 2017 to Sep 31, 2018. Adult patients who underwent surgeries were recruited for the study. Patients with a diagnostic code of up to 90 days after surgery were considered VTE cases with the outcome measure being the surgery-related costs within 90 days.
    Results: The 90-day cost of VTE patients was found to be US$2,939. The rate of readmission increased by 5.4 times, the rate of outpatient visits increased by 1.8 times and total costs over 90 days in patients with VTE undergoing surgery increased by 2.2 times. Estimation using propensity score matching method showed that an increase of US$1,019 in the 90-day cost of VTE patients.
    Conclusion: The VTE-related costs can be used to assess the potential economic benefit and cost-savings from prevention efforts.
    MeSH term(s) Adolescent ; Adult ; Aged ; Aged, 80 and over ; Case-Control Studies ; Cost of Illness ; Databases, Factual ; Female ; Humans ; Insurance Claim Review ; Male ; Middle Aged ; Propensity Score ; Retrospective Studies ; Surgical Procedures, Operative/adverse effects ; Venous Thromboembolism/economics ; Venous Thromboembolism/etiology ; Venous Thromboembolism/pathology ; Vietnam ; Young Adult
    Language English
    Publishing date 2020-04-09
    Publishing country United States
    Document type Journal Article
    ISSN 1932-6203
    ISSN (online) 1932-6203
    DOI 10.1371/journal.pone.0231411
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  6. Article ; Online: A Next-Generation Sequencing-Based Approach to Identify Genetic Determinants of Antibiotic Resistance in Cambodian Helicobacter pylori Clinical Isolates

    Vo Phuoc Tuan / Dou Narith / Evariste Tshibangu-Kabamba / Ho Dang Quy Dung / Pham Thanh Viet / Sin Sokomoth / Tran Thanh Binh / Sok Sokhem / Tran Dinh Tri / Seng Ngov / Pham Huu Tung / Ngo Phuong Minh Thuan / Tran Cong Truc / Bui Hoang Phuc / Takashi Matsumoto / Kartika Afrida Fauzia / Junko Akada / Tran Thi Huyen Trang / Yoshio Yamaoka

    Journal of Clinical Medicine, Vol 8, Iss 6, p

    2019  Volume 858

    Abstract: We evaluated the primary resistance of Helicobacter pylori ( H. pylori ) to routinely used antibiotics in Cambodia, an unexplored topic in the country, and assessed next-generation sequencing’s (NGS) potential to discover genetic resistance determinants. ...

    Abstract We evaluated the primary resistance of Helicobacter pylori ( H. pylori ) to routinely used antibiotics in Cambodia, an unexplored topic in the country, and assessed next-generation sequencing’s (NGS) potential to discover genetic resistance determinants. Fifty-five H. pylori strains were successfully cultured and screened for antibiotic susceptibility using agar dilution. Genotypic analysis was performed using NGS data with a CLC genomic workbench. PlasmidSeeker was used to detect plasmids. The correlation between resistant genotypes and phenotypes was evaluated statistically. Resistances to metronidazole (MTZ), levofloxacin (LVX), clarithromycin (CLR), and amoxicillin (AMX) were 96.4%, 67.3%, 25.5%, and 9.1%, respectively. No resistance to tetracycline (TET) was observed. Multi-drug resistance affected 76.4% of strains. No plasmids were found, but genetic determinants of resistance to CLR, LVX, and AMX were 23S rRNA (A2146G and A2147G), GyrA (N87K and D91Y/N/G), and pbp1 (P473L), respectively. No determinants were genetically linked to MTZ or TET resistance. There was high concordance between resistant genotypes and phenotypes for AMX, LVX, and CLR. We observed high antibiotic resistance rates of CLR, MTZ, and LVX, emphasizing the need for periodic evaluation and alternative therapies in Cambodia. NGS showed high capability for detecting genetic resistance determinants and potential for implementation in local treatment policies.
    Keywords Helicobacter pylori ; mutation ; antibiotic resistance ; next-generation sequencing ; genetic determinants ; whole genome sequence ; Medicine ; R
    Language English
    Publishing date 2019-06-01T00:00:00Z
    Publisher MDPI AG
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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