Naranjargal Dashdorj

Dr. Naranjargal Dashdorj

orcid

Research Focus & Metrics

Academic Career Length

9Years (2018-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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8 January 2020 in The Journal of Clinical Hypertension
Verified
Journal Article
Open access
PDF file
HPHarry Potts
Harry Potts
UBUurtsaikh Baatarsuren
Uurtsaikh Baatarsuren
MMMaral Myanganbayar
Maral Myanganbayar
BPBaigal Purevdorj
Baigal Purevdorj
BLBurtu‐Ujin Lkhagvadorj
Burtu‐Ujin Lkhagvadorj
NDNaranjargal Dashdorj
Naranjargal Dashdorj
This study examines the prevalence, awareness, treatment, and control of hypertension in Ulaanbaatar, Mongolia, using both the American Heart Association and conventional thresholds (130/80 and 140/90 mm Hg, respectively). In this randomized cross‐sectional study, two‐stage cluster sampling was used to obtain a sample of 4515 individuals aged ≥20 years. Hypertension was defined by the use of antihypertensives in the last 2 weeks or a blood pressure at or above the thresholds of 140/90 and 130/80 mm Hg. The mean age of the participants was 41.1 ± 14.0 years and 54.5% were women. Hypertension prevalence was 25.6% (using 140/90 mm Hg) and 46.5% (using 130/80 mm Hg). Prevalence increased with age and below 50 years men were consistently more likely to be hypertensive. Among hypertensive participants, the rates of awareness, treatment, and control were 69.7%, 46.8%, and 24.0% (using 140/90 mm Hg) and 49.1%, 25.8%, and 6.4% (using 130/80 mm Hg, respectively). Men had lower rates of awareness, treatment, and control compared with women, with the most pronounced differences at younger ages. This study shows that awareness, treatment, and control rates in Ulaanbaatar are better than in most low‐ and middle‐income countries but are still suboptimal. The largest “care gap” was in young men where a regulatory requirement for annual workplace blood pressure screening has the potential to enhance care. A major hypertension control program has just been initiated in Ulaanbaatar.

3 July 2019 in The Journal of Clinical Hypertension
Verified
Journal Article
Open access
PDF file
MMMaral Myanganbayar
Maral Myanganbayar
UBUurtsaikh Baatarsuren
Uurtsaikh Baatarsuren
GCGuanmin Chen
Guanmin Chen
NCNorm Campbell
Norm Campbell
RBRoberta Bosurgi
Roberta Bosurgi
NDNaranjargal Dashdorj
Naranjargal Dashdorj
Increased blood pressure is a leading risk for death globally, and interventions to enhance hypertension control have become a high priority. An important aspect of clinical interventions is understanding the knowledge, attitudes, and practices (KAP) of differing primary healthcare practitioners. We examined KAP surveys from 803 primary care practitioners in Ulaanbaatar, Mongolia (response rate 80%), using a comprehensive KAP survey developed by the World Hypertension League (WHL). The WHL KAP survey uniquely includes an assessment of key World Health Organization recommended interventions to enhance hypertension control. There were few substantive differences between healthcare professional disciplines. Primary care practitioners mostly had a positive attitude toward hypertension management. However, confidence and practice in performing specific tasks to control hypertension were suboptimal. A low proportion indicated they systematically screened adults for hypertension and many were not aware of the need to or were confident in prescribing more than two antihypertensive medications. It was the practice of a high proportion of doctors to not pharmacologically treat most people with hypertension who were at high cardiovascular risk. There was a reluctance by physicians to task share hypertension diagnosis, drug prescribing and assessing cardiovascular risk to nurses. The minority of health care professions use a hypertension management algorithm, and few have patient registries with performance reporting functions. There were few substantive differences based on the age, gender, and years of clinical practice of the practitioners. The study findings support the need for standardized education and training of primary care practitioners in Ulaanbaatar to enhance hypertension control.

EMEnkhtuguldur Myagmar-ochir
Enkhtuguldur Myagmar-ochir
YHYasuo Haruyama
Yasuo Haruyama
NTNobuko Takaoka
Nobuko Takaoka
KTKyo Takahashi
Kyo Takahashi
NDNaranjargal Dashdorj
Naranjargal Dashdorj
GKGen Kobashi
Gen Kobashi
We sought to estimate the prevalence of metabolic syndrome (MS) in the urban population of Mongolia and suggest a preferred definition. This cross-sectional study comprised 2076 representative samples, which were randomly selected to provide blood samples. MS was defined by the National Cholesterol Education Program’s Adults Treatment Panel III (NCEP ATP III), the International Diabetes Federation (IDF), and the Joint Interim Statement (JIS). The Cohen’s kappa coefficient (κ) was analyzed to determine the agreement between the individual MS components using the three definitions. The prevalence of MS in the 2076 samples was 19.4% by NCEP ATP III, 23.6% by IDF, and 25.4% by JIS criteria. For men, moderate agreement was found between the NCEP ATP III and waist circumference (WC) (κ = 0.42), and between the JIS and fasting blood glucose (FBG) (κ = 0.44) and triglycerides (TG) (κ = 0.46). For women, moderate agreement was found between the NCEP ATP III and high-density lipoprotein cholesterol (HDL-C) (κ = 0.43), and between the JIS and HDL-C (κ = 0.43). MS is highly prevalent in the Mongolian urban population. The JIS definition is recommended as the provisional definition.

12 June 2018 in The Journal of Clinical Hypertension
Verified
Journal Article
Open access
PDF file
MMMaral Myanganbayar
Maral Myanganbayar
UBUurtsaikh Baatarsuren
Uurtsaikh Baatarsuren
GCGuanmin Chen
Guanmin Chen
RBRoberta Bosurgi
Roberta Bosurgi
GSGeoffrey So
Geoffrey So
NDNaranjargal Dashdorj
Naranjargal Dashdorj
We examined the knowledge, attitudes, and practices of primary care doctors in Ulaanbaatar, Mongolia using a recently developed World Hypertension League survey. The survey was administered as part of a quality assurance initiative to enhance hypertension control. A total of 577 surveys were distributed and 467 were completed (81% response rate). The respondents had an average age of 35 years and 90.1% were female. Knowledge of hypertension epidemiology was low (13.5% of questions answered correctly); 31% of clinical practice questions had correct answers and confidence in performing specific tasks to improve hypertension control had 63.2% “desirable/correct” answers. Primary care doctors mostly had a positive attitude toward hypertension management (76.5% desirable/correct answers) and highly prioritized hypertension management activities (85.7% desirable/correct answers). Some important highlights included the majority (> 80%) overestimating hypertension awareness, treatment, and control rates; 78.2% used aneroid blood pressure manometers; 15% systematically screened adults for hypertension in their clinics; 21.8% reported 2 or more drugs were required to control hypertension in most people; and 16.1% reported most people could be controlled by lifestyle changes alone. 55% of respondents were not comfortable prescribing more than 1 or 2 antihypertensive drugs in a patient and the percentage of desirable/correct responses to treating various high‐risk patients was low. Most (53%‐74%) supported task shifting to nonphysician health care providers except for drug prescribing, which only 13.9% supported. A hypertension clinical education program is currently being designed based on the specific needs identified in the survey.

28 August 2026 in Journal of Viral Hepatitis
Verified
Journal Article
Closed access
NANomin Ariungerel
Nomin Ariungerel
KOKhaliunaa Otgonbaatar
Khaliunaa Otgonbaatar
SESaruul Enkhjargal
Saruul Enkhjargal
UEUlziigerel Erdembileg
Ulziigerel Erdembileg
SBSumiya Byambabaatar
Sumiya Byambabaatar
OOOdgerel Oidovsambuu
Odgerel Oidovsambuu

14 February 2026 in Vaccines
Verified
Journal Article
Open access
PDF file
EBEnkhtuul Batbold
Enkhtuul Batbold
NDNaranjargal Dashdorj
Naranjargal Dashdorj
Fabien ZoulimFabien Zoulim
Fabien Zoulim
Birke BartoschBirke Bartosch
Birke Bartosch
Persistent infection with hepatitis D virus (HDV), also known as hepatitis delta, is considered the most severe form of chronic viral hepatitis. HDV is a defective RNA virus that depends on hepatitis B virus (HBV) for propagation. Despite its global distribution, HDV stays a neglected part of the viral hepatitis agenda, often overlooked in surveillance systems and public health policy. This oversight is particularly concerning given HDV’s aggressive clinical course, characterized by more rapid progression to cirrhosis, liver failure, and hepatocellular carcinoma (HCC) compared to HBV mono-infection. Mongolia has the highest incidence and mortality rates of HCC worldwide, with approximately 47% of cases estimated to be attributable to chronic HDV infection. Globally, an estimated 12–25 million people are co-infected with HBV and HDV, although the true prevalence is higher due to insufficient screening and incomplete data collection. Because HDV infection is entirely dependent on HBV, prevention of HBV infection through effective vaccination stands for an indirect yet highly effective strategy to curb HDV transmission. The World Health Organization (WHO), together with the global health community, has established ambitious targets to eliminate viral hepatitis as a public health threat by 2030. However, achieving HDV elimination remains particularly challenging due to limited diagnostic capacity, low awareness, and minimal inclusion of HDV in national hepatitis programs. This review explores the intersection of HDV and HBV, focusing on how expanded and optimized HBV vaccination coverage can serve as a cornerstone of global HDV prevention efforts. We examine epidemiological evidence, scientific rationale, policy developments, and key implementation challenges, with particular attention to high-burden settings such as Mongolia. Finally, we propose strategic recommendations to bridge policy and practice gaps in HDV elimination.