1.Central serous chorioretinopathy
Temuulen B ; Baasansuren G ; Byambadorj M ; Uranchimeg D
Mongolian Journal of Health Sciences 2025;85(1):257-262
Background:
Central serous chorioretinopathy (CSCR) is described by researchers as a condition that results from fluid
under the retinal pigment epithelium, originating from the choroid of the eye. This disease usually affects the central part
of vision and may resolve on its own over time, though in some cases, it can persist for long periods or recur. In our country, there is a lack of research regarding this condition, which led to the motivation for gathering and reviewing existing
works on this topic.
Aim:
To collect and analyze a review of the studies on central serous chorioretinopathy (CSCR).
Methods:
We reviewed and analyzed literature related to CSCR published in electronic sources such as Thomson Reuters, PubMed-central database, and Google Scholar using literature review methods.
Results:
CSCR is most commonly seen in individuals aged 35-55 years, with a significantly higher prevalence in men
(9.9/100,000) compared to women (1.7/100,000). Researchers found that the prevalence of CSCR is nearly the same
among populations in Europe, Africa, and Asia. CSCR typically affects one eye, but it occurs in both eyes in up to 40%
of cases. Weenink A (2001) studied the family members of 27 patients with bilateral CSCR, finding that 52% of family
members had been diagnosed with CSCR, and 27.5% of them had chronic CSCR in at least one eye. This suggests a
potential genetic predisposition to CSCR. According to researchers, while CSCR can be diagnosed clinically, additional
imaging techniques like fluorescein angiography and optical coherence tomography are frequently used to rule out other
diagnoses and guide treatment.
Conclusion
CSCR generally has a favorable prognosis, but recurrences and its effects on visual function indicate the
need for effective management strategies. To maintain long-term visual improvement, it is essential to provide healthcare
services tailored to the patient’s specific conditions and risk factors.
2.Quality Assurance of Gastrointestinal Endoscopy Unit - A Single Center Study
Sarantuya Ts ; Amarjargal B ; Tungalag B ; Khishgee D ; Amarmend T ; Delgertsog T ; Amarjargal E ; Sarantuya G ; Gan-Orshikh L ; Enkhjargal B ; Sarantsatsral D ; Burentungalag A ; Nandintsetseg B ; Tserendolgor Ts ; Sattgul Sh ; Javzanpagma E ; Suvdantsetseg B ; Khashchuluun O ; Ouynkhishig N ; Munkhtuya E ; Uranchimeg M ; Oyuntungalag L ; Myadagmaa B ; Bat-Erdene I ; Batgombo N ; Saranbaatar A
Mongolian Journal of Health Sciences 2025;86(2):165-170
Background:
Accreditation of healthcare institutions serves as a fundamental mechanism for ensuring patient safety
and validating the quality of medical services provided to the population. At Intermed Hospital, a quality measurement
system for healthcare services has been established since 2015, encompassing 126 quality indicators at both institutional
and departmental levels. This system facilitates continuous quality improvement efforts. In this context, quality indicators
specific to the endoscopy department play a pivotal role in objectively assessing the quality of endoscopic services.
Aim:
To assess the quality indicators in gastrointestinal endoscopy unit.
Materials and Methods:
A retrospective single-center study was conducted by collecting data from the Intermed hospital’s
electronic information systems which included HIS and PACS and Quality and Safety Department’s Database and the results
were processed using the SPSS software. Ethical approval was granted by the Intermed hospital’s Scientific research
committee. The quality of endoscopic services in the Intermed hospital was assessed based on: a) the average values of
four quality indicators measured monthly; b) sample survey data from five categories of quality indicators.
Results :
Between 2016 and 2024, the quality indicators of the endoscopy unit measured as the level of early warning
score evaluations for patients was 95.97%±3.33, the level of cases where peripheral blood oxygen saturation decreased
during sedation was 1.54%±3.78, the level of cases where patients experienced paradoxiical response during sedation was
5.82%±1.75, surveillance culturing level for validation of endoscopy reprocessing was 11.6%. The endoscopic documentation
quality by peer review showed 95.7-100%, the colonoscopy quality indicators were followings as adenoma
detection rate: 24.5% Cecal intubation rate: 99.1%, 95.2%, Colonoscope withdrawal average time: 13.28±10.62 minutes,
Bowel preparation quality (Boston Scale): 89.3% 95.7%), patient discharge from the recovery room, Average discharge
time post-procedure: With propofol alone: 30.92 minutes; With propofol and fentanyl combined: 31.52 minutes, The intermediate
risk was 0.28% by the TROOPS evaluation during procedural sedation.
Conclusion
The quality benchmark levels for these endoscopic units, as determined by a single-center study, can be
effectively implemented by benchmark endoscopy centers to enhance their quality and safety operations.
3.Neuroticism as a risk factor for anxiety, depression, and insomnia during the covid-19 pandemic
Enkhtuvshin R ; Mongoljin A ; Munkhzul E ; Uranchimeg M ; Oyundari G ; Yerkibulan A ; Khishigsuren Z
Diagnosis 2025;115(4):36-42
Background:
The COVID-19 pandemic has profoundly impacted global mental health, exacerbating anxiety, depression, and insomnia, with prevalence rates of 25–30%, 27–32%, and 30–45%, respectively—2–3 times higher than pre-pandemic levels. Neuroticism, a key personality trait from the Big Five model, characterized by heightened negative emotions and stress reactivity, has been linked to increased vulnerability. Meta-analyses show neuroticism triples anxiety risk (OR=3.21; 95% CI: 2.35–4.39) and correlates strongly with insomnia (r=0.46, p<0.001) and depression during the pandemic. In Mongolia, empirical data on neuroticism's role remains limited.
Objective:
This study examines whether neuroticism acts as a risk factor for anxiety, depression, and insomnia among hospitalized patients during COVID-19.
Methods:
A cross-sectional descriptive study enrolled 552 patients (72.3% COVID-19 cases, 27.7% controls) from tertiary hospitals in Mongolia (2024). Participants (mean age 52.8±15.5 years; 60.5% female) completed self-reported questionnaires: Eysenck Personality Inventory (EPI) for neuroticism, PHQ-9 for depression, GAD 7 for anxiety, ISI for insomnia, and PCL 5 for PTSD. Sociodemographics were assessed. Data were analyzed using SPSS 26.0 with chi-square tests (p<0.05 significance). Instruments showed high reliability (Cronbach’s α=0.81–0.89). Ethical approval was obtained from MNUMS Ethics Committee (No. 2024-Psy-17).
Results:
Overall, 79.5% were depression free, 84.8% anxiety-free, and 77.5% insomnia-free. High neuroticism (n=381) was significantly associated with depression (24.4% vs. 11.7%, p<0.001), anxiety (18.6% vs. 7.6%, p<0.001), insomnia (28.3% vs. 9.4%, p<0.001), and any mental disorder (21.3% vs. 7%, p<0.001), but not PTSD (p=0.472). Cholerics (n=200) showed elevated risks (depression 29.5%, insomnia 34.5%, p<0.001), while sanguines/phlegmatics were protective. Verbal expression and trust levels showed no significant associations.
Conclusion
Neuroticism significantly heightens risks for anxiety, depression, and insomnia during COVID-19, underscoring the need for targeted psychological interventions. Temperament-informed screening could enhance prevention strategies in crisis settings.
4.Neuromyelitis optica- plasmapheresis efficacy
Yesuigen B ; Uranchimeg B ; Namuun G ; Tungalagtamir Sh
Diagnosis 2024;110(3):53-56
Neuromyelitis optica (NMO) is an autoimmune, inflammatory, demyelinating disorder characterised by attacks within the spinal cord and optic nerve. The purpose of this review is to understand the evidence for the effectiveness of plasmapheresis as an add-on therapy for NMO spectrum disorders (NMOSD). The current diagnostic criteria for NMO include optic neuritis, acute myelitis, and at least two of the following three supportive criteria: contiguous spinal cord MRI lesions extending over ≥3 vertebral segments, brain MRI not meeting diagnostic criteria for multiple sclerosis, and NMO-seropositive status.5 Myelitis presents with paraparesis and sensory loss below the lesion, sphincter loss, dysaesthesia, and radicular pain.
5.Genetic and risk factors of age-related macular degeneration
Ariunzaya A ; Chimedlkhamsuren G ; Bayarlakh B ; Suvd T ; Baasankhuu J ; Sarantuya J ; Uranchimeg D
Mongolian Medical Sciences 2024;210(4):18-25
Background:
Worldwide, the leading cause of blindness in people over the age of 50 is age-related macular
degeneration (AMD), which is a complication of the exudative “wet” and dry type. AMD is a
multifactorial neurodegenerative disease relating with a combination of environmental and
genetic factors, and a contribution of age effect and smoking also, obesity was investigated
to be associated with the disease. Number of previous studies have shown that the
polymorphisms in the ARMS2, CFH and VEGF-A genes are associated with AMD. Therefore,
we investigated the associations between the five common vascular endothelial growth factor
(VEGF) polymorphisms and AMD with its therapeutic results.
Materials and Methods:
Totally 161 AMD patients and 223 controls were enrolled in this case-control study. A
prospective analysis of 66 eyes of 34 patients with neovascular AMD evaluated intravitreal
bevacizumab injections. The polymorphisms in CFH, ARMS2 and VEGF-А were detected
by using the methods of allele-specific polymerase chain reaction (ASPCR) and PCR based
restriction fragment length polymorphism (RFLP). Statistical analyses were performed by
SNPalyze software.
Results:
Results of the study showed that rs1061170, rs1065489, and rs800292 polymorphisms are
associated with arterial hypertension. Anti-coagulant intake rs1061170 polymorphism T/C,
C/C/C/C risk genotype (OR=5.04, 95% CI, 1.81-14.09, p=0.002, RERI=2.568, AP=0.509,
S=2.7302) , combined effect of G/C/C/C/ /G, G/A risk genotype (OR=6.52, 95% CI, 2.88
14.79, p<0.001, RERI=4.187, AP=0.642, S=4.136) are associated with increased risk of AMD. In the study, in 66 eyes of a total of 34 people who received intravitreous injection
treatment, the central retinal thickness before and after treatment was 294.59±83.52 before
treatment, 262.74±87.02 on the first day after treatment, 259.5±111.83 after one month,
248.98±84.96 after 3 months, and 262.69 after 6 months. ±110.59, after 1 year it decreased
to 259.19±112.29 (95% CI, 226.74-291.65), which is a statistically significant difference. A
comparative study of polymorphisms in therapeutic and non-therapeutic groups revealed
statistically significant differences in the G/G groups of rs2010963 polymorphisms. Also,
people with G/G genotype of rs2010963 polymorphism are more effective in treatment than
people with other genotypes.
Conclusion
Individual factors such as not wearing sunglasses and arterial hypertension and using anti
coagulant medication have been identified as risk factors for AMD. The result showed that
polymorphisms of ARMS2, CFH, VEGF genes can be a genetic risk factor for AMD. The
decreased in central retinal thickness and improving VA after anti-VEGF treatment confirm the
effectiveness of the treatment. Also, people with G/G genotype of rs2010963 polymorphism
are more effective in treatment than people with other genotypes. Identification of genetic
markers that affect clinical response may result in optimization of anti-VEGF therapy.
6.Trifocal intraocular lens implantation to treat visual demands in Mongolian patients
Narangarav G ; Tsendjargal G ; Davaa D ; Uranchimeg D
Mongolian Medical Sciences 2023;203(1):17-21
Introduction:
Intraocular lens (IOL) implants are monofocal and trifocal lenses which helps to clear up the vision after cataract surgery.
Goal:
In this work, we aimed to compare the monofocal and trifocal IOL implantation during phacoemulsification surgery.
Materials and Methods:
This study was conducted on 133 participants. Females comprised n=81, mean n=52 into equal groups. Preoperative and Postoperative cataract surgery UCVA and BCVA were measured and compared during the after 1 day, week 1, 2 weeks and month1.
Statistical analysis:
The results of the study were processed using the SPSS 25.0 program after coding the data and checking for typographical errors. The normality of the data distribution was tested by inspecting a histogram. Categorical variables were compared using the chi-square test or Fisher's test. Statistical significance was determined at a p-value lower than 0.05
Ethical statement:
The study was approved by the Research Ethics Committee of the Mongolian National University of Medical Sciences (No.2021/05/21). All patients provided written informed consent before participating in this study.
Results:
The mean preoperative UCVA was 1.09±0.45D in monofocal IOL group, 0.99±0.49D in trifocal IOL group. At the first week: The mean postoperative UCVA at one week was 0.34±0.29D and 0.27±0.17D, in each group respectively. The mean postoperative BCVA in the first week was 0.28±0.27D and 0.20±0.15D in each group respectively. The mean postoperative UCVA at 1 month was 0.27±0.24D and 0.15±0.16D in each group, while BCVA was 0.26±24.94D and 0.06±0.63D.There was a highly significant statistical difference between the result of UCVA preoperative and the results of UCVA at the early and last postoperative follow up.
Conclusion
From our results, the best corrected visual acuity and was better for Trifocal group than Monofocal group. It is evident that post-operative near UCVA and BCVA was statistically significant at monofocal and trifocal groups.
7.Risk factors for endometritis following low transverse cesarean section
Khaliun U ; Buyan-Orshih G ; Bayarsaikhan Kh ; Lkhagva-Ochir E ; Uranchimeg R
Mongolian Medical Sciences 2023;205(4):9-15
Introduction:
Endometritis (EMM) is the most common maternal infectious complication of childbirth, occurring
more commonly after low transverse cesarean section (LTCS) than vaginal delivery [1]. In a Cochrane
review, the mean incidence of EMM following elective cesarean section was 7% and after non-elective
or emergency operations was 30% [4]. A variety of independent risk factors for post-cesarean EMM
have been identified in previous studies, including no prior cesarean section [5], low infant Apgar
scores [6], trial of labor [7], premature rupture of membranes (PROM) >24 hours, young maternal
age [8], preterm or post-term gestation [9], antepartum infections [10], pre-eclampsia, meconium [11],
amnion infusion, postpartum anemia, multiple vaginal examinations [12], and manual removal of the
placenta [13]. The time of ruptured membranes before delivery is examined via dichotomized time
thresholds, the risks of chorioamnionitis and endomyometritis are significantly increased at 12 hours
and 16 hours, respectively [16, 17]. A change in policy to administer prophylactic antibiotics before
skin incision led to a significant decline in postcesarean delivery surgical-site infections [18, 19].
Objective:
To determine independent risk factors for EMM following (LTCS).
Material and Method:
The study was case-control study, between 2022 to 2023 years at the “Urguu” specialized maternal
hospital Ulaanbaatar, Mongolia. Case group has 101 women with EMM and the control group has 100
women with non EMM after LTCS.
Results:
The age of 2 study groups was 32.4 and 32.8, body mass index was 30 kg/m2 and 30.7 kg/
m2.Young maternal age <25 has a 22% (p=0.001, OR=4.5) influence on the occurrence of EMM.
Other pregnancy related factors were not associated with the EMM after LTCS. (p>0.05). Delivery
risk factors has increases the EMM by 15% (p=0.002), labor induction by 20% (p=0.001), duration of
labor >12 hours by 40% (p=0.001), PROM increased by 15% (p=0.005), meconium by 15% (p=0.005),
chorioamnionitis by 15% (p=0.001).
Conclusion
Our study, young maternal age <25 has influence on the occurrence of EMM. Other pregnancy related
factors were not associated with the EMM after LTCS. Delivery associated risk factors are affected
by the EMM after LTCS. The labor after LTCS, labor induction, PROM >12 hours, duration of labor,
number of vaginal exams>4, meconium, chorioamnionitis increased by EMM. Young maternal age
(<25) increased the risk of EMM attached with labor association risk factors.
8.Investigation of morphometric measurement of the eyelid and ocular axial position in Mongolian adults
Oyungerel B ; Lkhagvadulam Ts ; Sumyasuren U ; Misheel B ; Lkhagvadulam U ; Bundarkhi Kh ; Undarmaa Sh ; Uranchimeg G ; Sarantuya J
Innovation 2022;15(1-Ophthalmology):18-23
Background:
The shapes of the eye and upper eyelid are distinctive facial landmarks. The palpebral fissure is composed of the free edges of upper and lower eyelids the lateral and medial canthus. Many
researchers confirmed that the morphometric characteristics of the palpebral fissure, canthal distance
and exophthalmometirc value (EV) vary according to race, ethnicity, age and sex and normative values
which may serve as a reference in the index population. Knowledge of normal dimensions, the existence of asymmetry of the palpebral fissure is of value in several clinical specialties including ophthalmology, plastic and reconstructive surgery and traumatology, where it plays a part in the patient evaluation, management and outcomes.
Methods:
This cross-sectional study was conducted in the Ophthalmological Department, Third State Central
Hospital between January 2022 and August 2022. We included participants who are above 18 years, no history of congenital or traumatic craniofacial deformities, any orbital fractures, tumors and surgeries. All measured values that represent eyelid shape and EV were calculated by mean and standard deviation for statistical analysis.
Results:
A total of 103 participants aged 19-86 were included in the study, of which 44 (42.7%) were male
and 59 (57.3%) were female. The distance between the lateral and medial canthus ranged from 20 to 35 mm, and the mean of the right and left side was 28.30+3.23 mm and 28.05+2.99 mm, respectively (p=0.561). The palpebral fissure height ranged from 5 to 13 mm, and the mean of the right and left side was 8.85+1.65 mm and 8.80+1.65 mm, respectively (p=0.816). The mean distance between the lateral canthi were 90.39+5.57 (range: 80-105 mm), whereas the mean distance between the medial canthi were 63.75+4.25 (range: 53-73 mm). The orbital height varied between 27-43 mm (33.73+3.72) and 26-44 mm (33.78+3.73) on the right and left sides, while the orbital width varied between 26-47 mm (36.75+4.53) and 27-45 mm (36.72+4.42) on the right and left sides, respectively. When measuring the exophthalmometric value (EV), the axial position of the eyeball, with the Hertel’s exophthalmometer, it ranged from 8 to 20 mm on both sides (mean value 13.68+3.01 and 13.71+3.00 on the right and left sides, respectively), and there was no statistically significant difference in symmetry (p=0.94).
Conclusion
The results are determined different from the findings of Chinese, Korean, Afro-American and
Caucasian population based studies. Thus further evaluation is required to represent the normative value of Mongolian index population, that is highly beneficial for clinical assessment, diagnosis and management.
9.Clinical features of ophthalmology in thyroid disease
Oyungerel B ; Erdenezul G ; Misheel B ; Uranchimeg D ; Chimedlkhamsuren G ; Nomin-Erdene M ; Sarantuya J
Innovation 2021;14(2-Ophthalmology):6-10
Background:
TED (thyroid eye disease) is an inflammatory disease of the orbit caused by
autoimmune diseases of the thyroid, which adversely affect the vision, appearance, and quality
of life. Exophthalmos and eyelid retraction are the main features of TED, which can lead to ocular
motility, diplopia, optic neuropathy, and permanent vision loss. The study aims to determine the
most common clinical signs of TED in Mongolians and define whether there is a correlation with
the levels of thyroid autoantibodies.
Methods:
The study involved 102 patients with TED and 81 patients with Graves’ ophthalmopathy.
The clinical features of TED were identified and evaluated by activity score (CAS) and severity of
GO using the European Group of Graves’ Orbitopathy (EUGOGO).
Results:
The mean age of TED patients was 42.6±11.2, which was younger than GD patients
(P=0.012). The current smoker was 24 patients (23.5%) with TED, which is relatively higher than GD
(P=0.0001). The most common ocular signs were eyelid retraction 80 (78.4%), proptosis 77 (75.5%),
diplopia 14 (13.7%) and 4% vision loss. There were no differences in proptosis between the right (18
mm, median) and left eye (17.8 mm, median) (P>0.05). The mean CAS score was 3.09±1.72 and
varied depending on gender and smoking. According to EUGOGO, 62.7% of the patients were
moderately severe. Only 7 % of the patients were in the sight-threatening stage, presenting optic
neuropathy and corneal breakdown. The mean TSI level in patients with TED was 37.95 ± 35.41 IU
/ ml, which was 2.7 times higher than the mean in patients with GD.
Conclusions
Eyelid retraction and exophthalmos are the most common clinical signs of TED.
Early diagnosis of these features can prevent complications of the disease. Determining serum TSI
levels will help in the treatment and monitoring of TED.
10.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
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