1.Outcomes of measures to prevent dose selection errors (2023-2024)
Nomin-Erdene Ts ; Tserennyam D ; Delgermaa Ts ; Orgilmaa Ts ; Mungunchimeg M ; Khulan M ; Khulan A ; Nina M ; Erdenetuya M
Mongolian Journal of Health Sciences 2025;87(3):154-160
Background:
A drug related problem is defined by the Pharmaceutical Care
Network Europe Association as an an event or circumstance involving drug
therapy that actually or potentially interferes with desired health outcomes.
One critical aspect of preventing such errors is proper dose adjustment, which
plays a vital role in the diagnosis and treatment of disease. For instance, adjusting
the dose of warfarin based on the patient’s INR level is essential. In
a 1995 study conducted in England, clinical pharmacists recommended target
doses of angiotensin-converting enzyme (ACE) inhibitors for patients with
chronic heart failure. As a result, patients experienced a significant reduction
in pulmonary and peripheral edema, along with improved exercise test outcomes.
At the Mongolian-Japanese Hospital of the Mongolian Medical University
of Science and Technology, it is important to analyze dosage-related
issues identified by clinical pharmacists and inform healthcare professionals
about common dosage selection errors and associated risks.
Aim:
We analyzed issues related to medication dosage.
Materials and Methods:
A retrospective study was conducted to examine
problem related to dosage detected through prescription monitoring at the
Mongolian Japanese Hospital of the Mongolian National University of Health
Sciences from 2023 to 2024.
Results:
Out of a total of 2340 drug-related problem identified across five
inpatient wards during this period, 581 (100%) were related to dosage. Clinical
pharmacists performed prescription review on approximately 67% of all
inpatients, which was consistent between years. However, medication-related
problems tended to decrease from 41.1% (n=1499) in 2023 to 22.3% (n=841)
in 2024 (p=0.05). The majority of dose-related problems, 75.6% (n=440), were
overdoses. Medication-related problems were most common in the surgical
department, with 59.5% (n=346) (p=0.001). The most frequent dosage-related
errors involved exceeding the daily dose of diclofenac, administering higher-
than-recommended doses of ceftriaxone, failing to adjust cefotaxime for
renal function, and using inappropriate doses of metronidazole in patients with
impaired liver function. The leading cause of these errors was failure to adhere
to guideline-recommended dosing, which accounted for 71.3% (n=415)
of cases (p=0.001). When dosage-related recommendations were provided to
physicians before of treatment, acceptance rates increased by 14% (p=0.001).
These interventions resulted in an estimated cost saving of 1.267.219₮ and a
reduction of 363 injections.
Conclusion
Therefore, clinical pharmacist-led prescription review can help
reduce the risk of dosage errors, lower associated healthcare costs, and alleviate
the burden on medical staff.
2.Drug utilization pattern of COVID-19 according to clinical severity (A Comparative Study in Two Secondary-Level Hospitals in Ulaanbaatar, Mongolia)
Narangarav ; ; Nina M ; ; Munkhbat S ; Erdenetuya M
Mongolian Journal of Health Sciences 2025;89(5):25-32
Background:
The COVID-19 pandemic has placed an extraordinary strain on healthcare systems worldwide, underscoring the need for evidence-based pharmacotherapy and rational use of medicines. Despite the availability of international
and national treatment guidelines, notable variations in drug selection and utilization persist across healthcare institutions.
Evaluating medication use according to clinical severity is vital for ensuring therapeutic rationality, improving patient
outcomes, and optimizing pharmaceutical resource management.
Aim:
The aim of this study was to assess medication use and associated costs among inpatients diagnosed with COVID-19
at the Mongolia–Japan Hospital of MNUMS and the National Center for Communicable Diseases through ABC analysis
Materials and Methods:
: A retrospective, document-based study was conducted at the Mongolia-Japan Hospital (MJH)
and the National Center for Communicable Diseases (NCCD) in Ulaanbaatar. Medical and pharmacy records of 1,012
inpatients diagnosed with COVID-19 between April 18 and December 31, 2021, were reviewed. Drug utilization was assessed using the ABC analysis method, classifying medicines based on their proportional contribution to total pharmaceutical expenditure. Comparative analyses were performed to identify differences in utilization patterns between hospitals
and across clinical severity levels.
Results:
Of the total pharmaceutical expenditure for COVID-19 treatment, six medicines (4.5% of all drugs) were categorized as Class A, accounting for 69.7% of total costs. Class B included seven medicines (7.0%, 19.5% of total costs),
while Class C comprised twenty-six medicines (88.6%, 10.6% of total costs). Remdesivir 100 mg injection, a Class A
drug, represented 18.5% of total drug expenditure at MJH (used in 78 patients) and 36.2% at NCCD (used in 133 patients). Overall, approximately 70% of total expenditure was concentrated in a small number of high-cost medicines,
indicating potential inefficiencies in pharmaceutical resource utilization.
Conclusion
This study demonstrates that a limited number of high-cost medicines, particularly Remdesivir, accounted
for the majority of COVID-19 treatment expenditures. Strengthening evidence-based prescribing, rational selection, and
monitoring of high-cost drugs is essential to enhance resource efficiency, ensure equitable access, and sustain hospital
pharmaceutical care systems during pandemic response and beyond.
3.A result of the detection of homozygous deletion of SMN1 gene in the spinal muscular atrophy
Esukhei E ; Khandsuren B ; Erdenetuya D ; Bolormaa D ; Mandakhnar M ; Oyungerel B ; Sarantsetseg S ; Yundendash D ; Nyam-Erdene N ; Batchimeg B ; Altansukh Ts ; Munkhbayar S ; Chimeglkham B
Mongolian Medical Sciences 2024;207(1):20-29
Background:
Spinal muscular atrophy (SMA) is a degenerative neuromuscular disease that causes progressive
muscle weakness and atrophy due to the loss of the motor neurons. Approximately 95% of patients
with SMA are homozygous for the deletion of SMN1 exon 7. With an incidence of 1/10.000 and a carrier
frequency of 1/40 to 1/50, SMA is the most common genetic cause of death in infants.
Purpose:
To detect homozygous deletion of SMN1 exon 7 and to analyse the SMN1 copy number by molecular
genetic analysis.
Materials and Methods:
In this study, 3 SMA patients with SMN1 gene homozygous deletion and 17 people of their relatives were
included. Molecular genetic analysis was performed in the Central Scientific Research Laboratory of the
Institute of Medical Sciences. DNA was extracted from peripheral blood, and its purity was assessed by
spectrophotometer. Homozygous deletion of SMN1 gene was analyzed with allele-specific PCR, and
the SMN1 gene copy number was evaluated by real-time PCR.
Results:
Among the five participants diagnosed with SMA by clinical symptom and electromyographic test, three
cases were found to have homozygous deletion of exon 7 of the SMN1 gene, while two cases did not
exhibit such mutation by the allele specific PCR analysis.
The mean age of study participants was 27.76±16.07 (ranging from 8 months to 52 years).
Six of the 7 relatives of the first proband had 1 copy number of SMN1 (0.75±0.29) or were carriers
of SMA, while one had 3 copy numbers (2.99) or no deletion of SMN1 gene. Additionally, 6 of the 7
individuals of the second proband had 1 copy number of the SMN1 gene (0.72±0.14), and 1 person
had 2 copy numbers. All 3 relatives of the third proband had 1 copy number of SMN1 gene (0.96±0.37).
Conclusion
We consider that determination of SMN1 gene homozygous deletion and carrier testing
can be performed by the PCR method locally. Further, it is necessary to implement the molecular
genetic testing method into practice and to study the requirements and needs of early detection of SMA
in the newborn screening program of Mongolia.
4.Spinal muscular atrophy: recent achievements in epidemiology, testing and gene therapy
Sarantsetseg T ; Erdenetuya D ; Yesukhei B ; Khandsuren B ; Oyungerel B ; Bolormaa D ; Mandakhnar M ; Tuul O ; Yundendash D ; Nyam-Erdene N ; Batchimeg B ; Munkhbayar S ; Chimedlkham B ; ;
Mongolian Medical Sciences 2023;205(4):75-83
Background:
Spinal Muscular Atrophy (SMA), an autosomal recessive disorder characterized by lower motor neuron
loss, leads to progressive muscle weakness and atrophy. With a neonatal incidence ranging from
1:6000 to 1:11000, individuals affected by SMA face challenges in locomotor function. The advent
of newborn screening tests, early diagnostic techniques, and the introduction of gene therapy have,
however, shown promise in enabling the acquisition of these motor skills.
Objective:
This review article seeks to shed a light on current understandings of the epidemiology, clinical
presentations, diagnostic methods, and treatments for spinal muscular atrophy, highlighting cutting
edge approaches within the discipline.
Methods:
A thorough search was conducted on PubMed, Cochrane, National Institutes of Health, and Web
of Science databases for recent research articles concerning SMA’s incidence, prevalence, clinical
manifestations, early detection, genetic testing and contemporary gene therapy.
Results:
The prevalence of SMA stands at 1-2 cases per 100,000 population, with an incidence of approximately
8 cases per 100,000 live births. Pre-1995 studies exhibited varying prevalence rates due to using non
molecular-biological methods, small localized populations, diagnostic errors, and regional characteristics.
Diagnosis involving Multiplex ligation-dependent probe amplification (MLPA), quantitative polymerase
chain reaction (qPCR), or next-generation sequencing (NGS) analysis to confirm SMN1 and SMN2
gene status aids in identifying carriers and SMA subtypes. Countries implementing newborn screening
programs have demonstrated early SMA detection in asymptomatic newborns, contributing to reduced
mortality and disability rates. Currently, several types of gene therapy are being used in the treatment
of SMA.
Conclusion
The epidemiology of SMA varies between countries and regions. It is fully possible to confirm the
disease, identify carriers and subtypes. The inclusion of SMA in newborn early detection programs is
crucial for reducing infant mortality and disability, and several gene therapies have received approval from relevant authorities for SMA treatment. In Mongolia, it is possible to introduce tests to confirm the
disease and determine carriers and subtypes.
5.Outcomes of retinopathy of prematurity screening at National Center For Maternal And Child Health
Tsengelmaa Ch ; Erdenetuya G ; Tsogzolmaa G ; Gantuya M ; Amgalan P ; Enkhtuya S ; Altantuya Ts ; Bayalag M
Innovation 2021;14(1-Ophthalmology):22-25
Purpose:
To investigate the outcomes of ROP screening of retinopathy of prematurity (ROP).
Methods:
This was a prospective of prematurity infants screened ROP from 2020 April 13th to
April 28th 2020 and from 2020 June 08 th to June 22th 2020 and prospective cohort study of
premature infants with treatment-requiring ROP who received intravitreal injections, laser surgery.
Demographic factors, diagnosis and clinical course were recorded. Indirect ophthalmoscopy
and Retinal imaging was performed using RetCam (Natus Medical, Pleasanton, CA) and
images were taken. Each eye was evaluated by the pediatric ophthalmologist and aimag’s
ophthalmologist for the presence or absence of ROP, zone of vascularization, stage, plus disease,
and aggressive posterior ROP (AP-ROP). The diagnosis and classification of ROP for this current
study were determined by examination using indirect ophthalmoscopy, and treatment plans
were determined according to the International Classification for ROP and the Early Treatment for
ROP Study (ET-ROP).2,13
Results:
A total of 90 premature infants with BW ≤ 2000g and/or GA ≤ 34 weeks were screened for
ROP during the study period. 8 (8.8%) of the 90 infants screened required treatment. The 8 infants
who received ROP treatment had a mean GA of 28.5 ± 1.7 weeks, mean BW of 1237.5 ± 125.42g,
mean PMA of 36 weeks and mean follow-up time of 2 months.
Conclusion
After treatment, resolution of ROP was noted in approximately 100 % of the patients
who had treatment-requiring ROP.
6.Correlation between delay time of surgery of congenital cataract and postoperative visual acuity
Shamsiya M ; Nasantogtokh E ; Uranchimeg D ; Davaa G ; Erdenetuya G
Mongolian Journal of Obstetrics, Gynaecology and Pediatrics 2021;29(1):2096-2100
Correlation between delay time of surgery of congenital cataract and postoperative visual acuity
Introduction: Worldwide, child cataract is 1 to 15 cases per 100,000 children are diagnosed. In the International Classification of Diseases, pediatric cataracts are classified as congenital (Q12) and developmental (H26.0). Congenital cataract occurs in 1–3 out of 10,000 children, and if diagnosed, surgery is required without delay. International researchers report that congenital cataracts require semi-emergency surgery. It is also recommended that children with congenital cataracts be diagnosed after 3 months of age without surgery. Congenital cataracts are recommended for surgery in one eye within 6 weeks and in both eyes within 10 weeks. Early detection of congenital cataracts and emergency surgical treatment are important to improve postoperative visual outcome and quality of life. To investigate the correlation between the surgical delay time and postoperative visual acuity in children diagnosed with congenital cataracts.
Material and methods: This study conduct based on the ophthalmic surgery department of the National Center for Maternal and Child Health, performed for a retrospective longitudinal study design. The study examined cases of congenital cataracts in both eyes and retrospectively follow patients who had congenital cataract surgery in 2018-2020 from the onset of symptoms to the postoperative period. The sample size was calculated using open.epi. We sampled participants for non-probabilistic purposes. The study included children 1 year of age and younger or with nystagmus, cataract with nuclear and polar morphology , and bilateral cataracts Statistical analysis was performed using STATA 16.0 software. The risk of delay time to visual acuity was determined by an ordinal regression model.
Results: The study included 46 cases of congenital cataracts, under the age of 16. 61 percent of the children were male and 58.7 percent were from rural areas. The postoperative visual acuity of the children in the study was <0.09 in 52.2% (n = 24) and 0.1
7.Outcomes of retinopathy of prematurity screening
Tsengelmaa Ch ; Erdenetuya G ; Tsogzolmaa G ; Gantuya M ; Amgalan P ; Enkhtuya S ; Altantuya Ts ; Bayalag M
Mongolian Journal of Obstetrics, Gynaecology and Pediatrics 2021;29(1):2121-2124
Outcomes of retinopathy of prematurity screening
Background: Retinopathy of prematurity (ROP) is a potentially blinding eye disorder that primarily affects premature infants weighing about 1250 grams or less that are born before 31 weeks of gestation (a full-term pregnancy has a gestation of 38-42 weeks). The smaller a baby is at birth, the more likely that baby is to develop ROP. This disorder — which usually develops in both eyes — is one of the most common causes of visual loss in childhood and can lead to lifelong vision impairment and blindness. ROP was first diagnosed in 1942. Our goal was to investigate the outcomes of ROP screening of retinopathy of prematurity (ROP).
Materials and methods :This was a prospective of prematurity infants screened ROP from 2020 April 13th to April 28th 2020 and from 2020 June 08 th to June 22th 2020 and prospective cohort study of premature infants with treatment-requiring ROP who received intravitreal injections, laser surgery. Diagnosis and clinical course were recorded. Indirect ophthalmoscopy and Retinal imaging was performed using RetCam (Natus Medical, Pleasanton, CA) and images were taken. Each eye was evaluated by the pediatric ophthalmologist and aimag's ophthalmologist for the presence or absence of ROP, zone of vascularization, stage, plus disease, and aggressive posterior ROP (AP-ROP). The diagnosis and classification of ROP for this current study were determined by examination using indirect ophthalmoscopy, and treatment plans were determined according to the International Classification for ROP and the Early Treatment for ROP Study (ET-ROP).
Results: A total of 90 premature infants with BW ≤ 2000g and/or GA ≤ 34 weeks were screened for ROP during the study period. 8 (8.8%) of the 90 infants screened required treatment. The 8 infants who received ROP treatment had a mean GA of 28.5 $ 1.7 weeks, mean BW of 1237.5 $ 125.42g, mean PMA of 36 weeks and mean follow-up time of 2 months.
Conclusions: After treatment, resolution of ROP was noted in approximately 100 % of the patients who had treatment-requiring ROP
8.Study On Adverse Drug Reactions In Mongolia During 2010-2012
Delgerzaya E ; Erdenetuya M ; Undram L
Journal of Oriental Medicine 2015;8(1):45-48
Abstract To study adverse drug reactions registered in 2010-2012 in
Mongolia. This study has descriptive design. 280 yellow forms for
recording adverse drug reaction, which were registered by the Drug
assurance department of the Department of Health-Implementing
Agency of the Government, were used. Yellow forms were from 2010-
2012. Statistical analysis was performed in SPSS 17.0. More than half of
cases (51%) of drug adverse reaction were in people over 41 years old.
Psychotropic medications and antibiotics were the most drugs with
adverse reaction having 31.1% and 27.1% respectively. The common
adverse reactions were dysfunctions of central nervous system (38.6%),
skin rashes (22.5%), dysfunctions of digestive system (11.1%), allergic
reactions (7.9%) and other symptoms (15.5%). In 4% of cases the
symptoms were not described. Countries of production of medications
causing drug reactions were Russia in 26.1%, China 13.2%, Моngolia
12.2%, India 11.4%, Indonesia 3.2% and other countries in 15.3%. In
18.6% the country was not recorded. In 18.9%, 16.4% and 9.6% of
reactions were from tablets, intramuscular injections and drippings. The
forms filled in by the patients in 31% did not have their names, and in
48% there were no records on reasons for taking medicines. Conclusion
Psychotropic medications and antibiotics were the most drugs with
adverse reaction. The common adverse reactions were dysfunctions of
central nervous system, skin rashes and dysfunctions of digestive.
Adverse drug reactions were identified insufficiently and forms for
recording the adverse reactions were filled incompletely and incorrectly.
9.The result of study on medications used for in-patients with ischemic heart disease of tertiary level hospitals
Ariunaa D ; Erdenetuya M ; Enkhjargal D
Mongolian Medical Sciences 2013;164(2):54-58
IntroductionThe main principles of pharmacotherapy are to provide pharmaceutical care with right medicine, right doses, in right time. If, the treatment plan can be in evidence based, it will improve treatment efficacy and safety, can prevent from drug related adverse event and reduce drug cost. Ischemic heart disease is one of major cause of mortality and one of the main diseases of morbidity in Mongolia and in the Worldwide.GoalAim of study was to conduct retrospective study on medications used for in-patients with Ischemic heart disease of tertiary level hospitals of Ulaanbaatar.Materials and MethodTotal of 438 patient’s records was collected randomly from 3 state hospitals, which were treated with diagnosis of ICD. Variables of study were patient’s diagnosis, age, sex, names, doses and route of medications.ResultThe trends of rational use of drug and number of drug and drug cost per patients were different in each tertiary level hospitals of Ulaanbaatar. In I national hospital, number and cost of drug per patients were higher than second and third state hospitals. The result were shown that in all three hospitals, more than 50 percent of total drugs per patients were injection, less than 50 percent of total used drug per patients were from standard therapeutic guideline. In second state hospital, anticoagulant and anti-platelet agents were chosen less than first and third state hospitals. In order to decrease cardiac oxygen demand and improve cardiac microcirculation, nitrates were chosen mostly in second and third state hospitals but, beta blockers were chosen mostly in first state hospital.ConclusionThe study results shown the treatment pattern and trends of rational use of drugs in in patients with ischemic heart disease have been different in tertiary level hospitals of Ulaanbaatar.
10.Trends of health care professionals toward adverse drug reaction reporting
Narankhuu E ; Erdenetuya M ; Purevsuren S ; Baysgalan B ; Sarnaizul E ; Tungalag B
Mongolian Medical Sciences 2013;164(2):59-62
IntroductionThe detection of adverse drug reactions has become increasingly significant because of introduction of a large number of potent toxic chemicals as drugs in the last two or three decades. Adverse drug reaction (ADR) monitoring and reporting activity is in its infancy in Mongolia. The important reason is lack of awareness and lack of interest of healthcare professionals in ADR reporting and documentation.GoalTo evaluate implementation and trends of health care professionals toward adverse drug reaction reporting at first, second and tertiary level hospitals.Materials and MethodA prospective study was carried out in first and second level hospitals of Khentii, Dundgovi, GoviAltai, Selenge and Uvurkhangai provinces, Sukhbaatar, Songinokhairkhan district hospital and First maternaty hospital. From tertiary level hospitals were selected First national hospital, Third national hospital, National center of oncolgy, National center of traumatolgy. The questionnaire survey involved total of 175 doctors and pharmacists.ResultsThe study result have shown that most of health care profeesionals (76 – 80%) of first and tertiary level hospitals have known about legal bases and theie duties for the ADR reporting than health care professionals (69%) of secondary level hospitals. And, pharmacists more activily involve in ADR reporting than doctors. The main reasons of healthcare professionals ADR underreporting were lack of time to report, lack of awarness about ADR and not knowing importance of ADR repoting. The implementetion extent of ADR reporting was in tertiary level hospital better than in secondary level hospitals. Lacking of clinical pharmacists and clinical pharmacologists and unproper activitity of Drug therapeutic committee in secondary level hospitals were the reason of poor implementing and underreporting of ADR.ConclusionThe study result has shown that there is needed to encourage doctors to the adverse drug reporting activity and implementation of drug safety should be strengthen in each level of health care system.

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