Journal of Yeungnam Medical Science

Original article

Public Health, Environmental, and Occupational Health
Significant reduction in norovirus outbreaks and secondary transmission of acute gastroenteritis in Seoul schools following the COVID-19 pandemic: a retrospective epidemiological study: Euncheol Son, Young-Hoon Kim; J Yeungnam Med Sci. 2025;42:65. Published online October 14, 2025; DOI: https://doi.org/10.12701/jyms.2025.42.65

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Abstract PDF Supplementary Material: Background
Unexpectedly, during the coronavirus disease 2019 (COVID-19) pandemic (2020–2022), it was reported that the number of acute gastroenteritis outbreaks (AGEOs) increased abruptly in childcare centers and kindergartens due to the increase in norovirus GII.4 transmission. However, changes in AGEOs in schools have not been reported during the same period. Therefore, this study aimed to compare the characteristics of AGEOs in schools before and after 2020.
Methods
We analyzed the results of AGEO epidemiological investigation reports in Seoul.
Results
The number of AGEO cases in schools decreased after 2020. Norovirus was identified as the causative pathogen in 10 of 11 cases in 2019, while only five cases were caused by norovirus among the 12 cases between 2020 and 2022. The average attack rate decreased from 10.2% in 2019 to 5.2% between 2020 and 2022. The average duration of patient occurrence also decreased from 7.5 days in 2019 to 4 days between 2020 and 2022. Secondary transmission occurred in all 2019 cases. However, secondary transmission was not observed in half of the cases between 2020 and 2022.
Conclusion
Norovirus outbreaks and secondary transmission in schools declined after the onset of the COVID-19 pandemic, probably because of infection control measures implemented to prevent COVID-19 transmission.

Case report

Musculoskeletal Disorders
Unilateral lower extremity lymphedema followed by COVID-19 vaccination in patients with cervical cancer history: two case reports: Jae Ik Jung, Hee Kyung Cho; J Yeungnam Med Sci. 2025;42:23. Published online January 21, 2025; DOI: https://doi.org/10.12701/jyms.2025.42.23

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Abstract PDF: The coronavirus disease 2019 (COVID-19) pandemic prompted the development of messenger RNA vaccines. Following extensive vaccination campaigns worldwide, several adverse reactions to these vaccines have been reported. This is a case series of unilateral lower extremity lymphedema after COVID-19 vaccination in two patients with a history of cervical cancer. An 82-year-old woman and a 68-year-old woman visited the outpatient clinic with unilateral leg edema after receiving a COVID-19 booster vaccine (BNT162b2; Pfizer-BioNTech) in the deltoid muscle. Both patients had a common history of cervical cancer treated with surgery, chemotherapy, and radiotherapy and were in complete remission. Gynecological evaluations, including laboratory and imaging studies, revealed no specific findings. Lymphoscintigraphy revealed delayed lymphatic drainage with diffuse dermal backflow in a unilateral lower extremity. This case series explores adverse reactions to COVID-19 vaccination in patients who are at high risk of developing lymphedema, providing novel data for similar clinical presentations.

Original article

Psychiatry and Mental Health
Impact of COVID-19 on the development of major mental disorders in patients visiting a university hospital: a retrospective observational study: Hee-Cheol Kim; J Yeungnam Med Sci. 2024;41(2):86-95. Published online February 6, 2024; DOI: https://doi.org/10.12701/jyms.2023.01256

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Abstract PDF

Background
This study aimed to investigate the impact of coronavirus disease 2019 (COVID-19) on the development of major mental disorders in patients visiting a university hospital.
Methods
The study participants were patients with COVID-19 (n=5,006) and those without COVID-19 (n=367,162) registered in the database of Keimyung University Dongsan Hospital and standardized with the Observational Medical Outcomes Partnership Common Data Model. Data on major mental disorders that developed in both groups over the 5-year follow-up period were extracted using the FeederNet computer program. A multivariate Cox proportional hazards model was used to estimate the hazard ratio (HR) and 95% confidence interval (CI) for the incidence of major mental disorders.
Results
The incidences of dementia and sleep, anxiety, and depressive disorders were significantly higher in the COVID-19 group than in the control group. The incidence rates per 1,000 patient-years in the COVID-19 group vs. the control group were 12.71 vs. 3.76 for dementia, 17.42 vs. 7.91 for sleep disorders, 6.15 vs. 3.41 for anxiety disorders, and 8.30 vs. 5.78 for depressive disorders. There was no significant difference in the incidence of schizophrenia or bipolar disorder between the two groups. COVID-19 infection increased the risk of mental disorders in the following order: dementia (HR, 3.49; 95% CI, 2.45–4.98), sleep disorders (HR, 2.27; 95% CI, 1.76–2.91), anxiety disorders (HR, 1.90; 95% CI, 1.25–2.84), and depressive disorders (HR, 1.54; 95% CI, 1.09–2.15).
Conclusion
This study showed that the major mental disorders associated with COVID-19 were dementia and sleep, anxiety, and depressive disorders.

Citations

Citations to this article as recorded by

Association between COVID-19 infection and risk of mental disorders: a systematic review and meta-analysis
Jiayi Liu, Honghao Lai, Weilong Zhao, Jiajie Huang, Bei Pan, Janne Estill, Long Ge
General Hospital Psychiatry.2025; 97: 130. CrossRef

Case report

Physical therapy, Sports Therapy, and Rehabilitation
Effect of pulmonary rehabilitation on patients with acute COVID-19: a single-center case series: Son Mi Lee, Min Woo Kim, Donghyun Shin, Songi Han, Ju Sun Oh; J Yeungnam Med Sci. 2023;40(3):297-301. Published online November 1, 2022; DOI: https://doi.org/10.12701/jyms.2022.00591

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Abstract PDF

The coronavirus disease 2019 (COVID-19) pandemic has been ongoing for more than 2 years. Many patients who recover from severe acute respiratory syndrome coronavirus 2 infection continue to have aftereffects such as dyspnea and fatigue, which may lead to functional decline. Therefore, the need for managing these symptoms using methods such as pulmonary rehabilitation (PR) has emerged. The purpose of this study was to report the effectiveness of PR in five patients with acute COVID-19. PR was performed in patients with persistent dyspnea and oxygen demand after COVID-19. All five patients were able to maintain an independent functional status before COVID-19. However, after acute COVID-19, they were unable to walk independently and needed assistance for activities of daily living due to dyspnea and fatigue. Therefore, they were referred to rehabilitation units, and PR was performed. The modified Medical Research Council dyspnea scale, maximal expiratory pressure (MEP), 6-minute walking test, forced vital capacity, and grip strength were assessed before and after PR, and the results were compared. After PR, the parameters improved, except for the MEP in one patient (patient 3) and the grip strength in another patient (patient 4). After PR, two out of five patients returned to work and the other three returned home. Therefore, we conclude that PR is necessary for patients with acute COVID-19 with activity limitations.

Citations

Citations to this article as recorded by

Effect of Chest Physiotherapy Technique on Bilateral Bronchial Pneumonia Secondary to Acute Respiratory Distress Syndrome: A Case Report
Urvini R Lokhande, H V Sharath, Vaishnavi M Thakre
Cureus.2023;[Epub] CrossRef

Original articles

Medical Education
Experience of operating a medical humanities course at one medical school during the COVID-19: a retrospective study: Yu Ra Kim, Hye-won Shin, Young Hwan Lee, Seong-Yong Kim; J Yeungnam Med Sci. 2023;40(2):179-186. Published online September 23, 2022; DOI: https://doi.org/10.12701/jyms.2022.00451

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Abstract PDF

Background
This study summarizes the experience of operating a ‘Medical Humanities’ course, which was taught remotely to maintain activities and discussions at medical schools in Daegu, Korea during the sudden and unexpected coronavirus disease 2019 (COVID-19).
Methods
The subjects of this study were 73 first- and 79 second-grade medical students who took the medical humanities (1) and (2) courses among first- and second-grade students of Yeungnam University College of Medicine in 2020. Of the 152 students who agreed to the online survey, 123 completed the survey. Self-, environmental, and program evaluations were conducted on the study subjects, and differences according to grade and gender were analyzed.
Results
As a result of the study, a significant difference between self-evaluation and environmental evaluation was confirmed. Self-evaluation was determined to be higher in the first grade than in the second grade. The environmental evaluation showed that male students were more satisfied than female students and students generally had difficulties in the classroom environment. Of the applications used in class, the highest satisfaction was observed with KakaoTalk (Kakao Corp.) and Zoom (Zoom Video Communications Inc.). At the end of COVID-19, the students preferred online classes.
Conclusion
If the learning environment for online classes is well prepared and systematic provisions are made, such as class operations that are suitable for the subject, effective education and learning can be achieved by taking advantage of both face-to-face and online classes.

Citations

Citations to this article as recorded by

Study on the Learning Environment of Medical Students in the COVID-19
Yu Ra Kim, Hye Jin Park, Saeyoon Kim
Keimyung Medical Journal.2023; 42(2): 80. CrossRef

Medical Education
A study on the mental health of students at a medical school during COVID-19 outbreak: a retrospective study: Yu Ra Kim, Hye Jin Park, Bon-Hoon Koo, Ji Young Hwang, Young Hwan Lee; J Yeungnam Med Sci. 2022;39(4):314-321. Published online August 16, 2022; DOI: https://doi.org/10.12701/jyms.2022.00437

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Abstract PDF

Background
In this study, the degree of anxiety, depression, and stress caused by coronavirus disease 2019 (COVID-19) was identified, as well as the need for psychological prevention measures among medical students in the Daegu region that was designated the first special disaster area due to the spread of COVID-19.
Methods
The subjects of this study were 318 medical students in Daegu who voluntarily participated in an online test using the Hospital Anxiety and Depression Scale and Impact of Event Scale-Revised Korean version. As a result of the test, risk students received immediate telephone counseling, and the effect of this telephone counseling was analyzed.
Results
There were no differences in depression, anxiety, or stress according to gender and grade. As a result of immediate telephone counseling for risk students, significant differences were found in depression, anxiety, and stress, and the counseling was found to be effective.
Conclusion
For medical students who are easily exposed to stress, the importance of psychological prevention measures and effectiveness of non-face-to-face counseling should be recognized. In the field of medical education, we must do our best to build a system that can be used immediately at the appropriate time for these programs.

Citations

Citations to this article as recorded by

Stress and coping skills in medical students
Yu Ra Kim, Hye Jin Park, Seong Yong Kim
Korean Journal of Medical Education.2025; 37(1): 59. CrossRef
Global prevalence of anxiety and depression among medical students during the COVID-19 pandemic: a systematic review and meta-analysis
Yen-Ko Lin, Ita Daryanti Saragih, Chia-Ju Lin, Hsin-Liang Liu, Chao-Wen Chen, Yung-Sung Yeh
BMC Psychology.2024;[Epub] CrossRef
Post-Pandemic Evaluation: Impact of Covid-19 Pandemic on Medical Students’ Mental Health, Self-Esteem, Social Interactions, and Academic Progression in Malaysia
Sia Woon Teen, Tan Jih Huei, Lee Tiong Chan, Tay Jia Chyi
Sage Open.2024;[Epub] CrossRef
Study on the Learning Environment of Medical Students in the COVID-19
Yu Ra Kim, Hye Jin Park, Saeyoon Kim
Keimyung Medical Journal.2023; 42(2): 80. CrossRef

Review article

Infectious Disease
Coronavirus disease 2019 (COVID-19) vaccine platforms: how novel platforms can prepare us for future pandemics: a narrative review: Jae Kyung Lee, Ok Sarah Shin; J Yeungnam Med Sci. 2022;39(2):89-97. Published online February 14, 2022; DOI: https://doi.org/10.12701/jyms.2021.01669

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Abstract PDF

More than 2 years after the explosion of the coronavirus disease 2019 (COVID-19) pandemic, extensive efforts have been made to develop safe and efficacious vaccines against infections with severe acute respiratory syndrome coronavirus 2. The pandemic has opened a new era of vaccine development based on next-generation platforms, including messenger RNA (mRNA)-based technologies, and paved the way for the future of mRNA-based therapeutics to provide protection against a wide range of infectious diseases. Multiple vaccines have been developed at an unprecedented pace to protect against COVID-19 worldwide. However, important knowledge gaps remain to be addressed, especially in terms of how vaccines induce immunogenicity and efficacy in those who are elderly. Here, we discuss the various vaccine platforms that have been utilized to combat COVID-19 and emphasize how these platforms can be a powerful tool to react quickly to future pandemics.

Citations

Citations to this article as recorded by

Unilateral lower extremity lymphedema followed by COVID-19 vaccination in patients with cervical cancer history: two case reports
Jae Ik Jung, Hee Kyung Cho
Journal of Yeungnam Medical Science.2025; 42: 23. CrossRef
Vaccine Platform-Dependent Differential Impact on Microbiome Diversity: Potential Advantages of Protein Subunit Vaccines
Hye Seong, Jin Gu Yoon, Eliel Nham, Yu Jung Choi, Ji Yun Noh, Hee Jin Cheong, Woo Joo Kim, Sooyeon Lim, Joon Young Song
Vaccines.2025; 13(12): 1248. CrossRef
Preclinical evaluation of immunogenicity, efficacy and safety of a recombinant plant-based SARS-CoV-2 RBD vaccine formulated with 3M-052-Alum adjuvant
Waranyoo Phoolcharoen, Balamurugan Shanmugaraj, Narach Khorattanakulchai, Piyanate Sunyakumthorn, Sathit Pichyangkul, Pornnarin Taepavarapruk, Wanlapa Praserthsee, Suchinda Malaivijitnond, Suwimon Manopwisedjaroen, Arunee Thitithanyanont, Kanjana Srisutth
Vaccine.2023; 41(17): 2781. CrossRef

Communication

Infectious Disease
The pros and cons of entry restrictions: are entry restrictions really effective in preventing the spread of SARS-CoV-2?: Donghwi Park, Mathieu Boudier-Revéret, Min Cheol Chang; J Yeungnam Med Sci. 2022;39(4):344-346. Published online January 14, 2022; DOI: https://doi.org/10.12701/yujm.2021.01599

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Abstract PDF

Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) has rapidly spread worldwide, leading the World Health Organization to declare coronavirus disease 2019 (COVID-19) a pandemic. To curb the unchecked spread of SARS-CoV-2 infection, most countries have enforced travel restrictions. However, it is debatable whether such restrictions are effective in containing infections and preventing pandemics. Rather, they may negatively impact economies and diplomatic relationships. Each government should conduct an extensive and appropriate analysis of its national economy, diplomatic status, and COVID-19 preparedness to decide whether it is best to restrict entering travelers. Even if travelers from other countries are allowed entry, extensive contact tracing is required to prevent the spread of COVID-19. In addition, governments can implement “travel bubbles,” which allow the quarantine-free flow of people among countries with relatively low levels of community transmission. An accurate evaluation of the benefits and losses due to entry restrictions during the COVID-19 pandemic would be helpful in determining whether entry restrictions are an effective measure to reduce the spread of infection in future pandemics.

Citations

Citations to this article as recorded by

“Exceptionally challenging time for all of us”: Qualitative study of the COVID-19 experiences of partners of diplomatic personnel
Samantha K. Brooks, Dipti Patel, Neil Greenberg, Joseph Adu
PLOS ONE.2023; 18(11): e0293557. CrossRef

Original articles

Anesthesiology and Pain Medicine
Infection prevention measures and outcomes for surgical patients during a COVID-19 outbreak in a tertiary hospital in Daegu, South Korea: a retrospective observational study: Kyung-Hwa Kwak, Jay Kyoung Kim, Ki Tae Kwon, Jinseok Yeo; J Yeungnam Med Sci. 2022;39(3):223-229. Published online November 5, 2021; DOI: https://doi.org/10.12701/yujm.2021.01431

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Abstract PDF: Background
The first large coronavirus disease 2019 (COVID-19) outbreak outside China occurred in Daegu. In response, we developed infection prevention measures for surgical patients during the outbreak at our hospital and retrospectively reviewed the outcomes of COVID-19–related surgical patients.
Methods
We reviewed the medical records of 118 COVID-19–related surgical patients and monitored their clinical outcomes until March 31, 2021. We also interviewed healthcare workers who participated in their perioperative care at Kyungpook National University Chilgok Hospital. The perioperative management guidelines for COVID-19–related patients were prepared through multidisciplinary discussions, including the infection control department, surgical departments, and anesthesiology department before and during the COVID-19 outbreak.
Results
One standard operating room was temporarily converted to a negative-pressure room by increasing the exhaust air volume, creating a relative pressure of −11.3 Pa. The healthcare workers were equipped with personal protective equipment according to the patient's classification of the risk of COVID-19 transmission. The 118 COVID-19–related patients underwent emergent surgery in the negative-pressure room, including three COVID-19–confirmed patients and five COVID-19–exposed patients.
Conclusion
All surgeries of the COVID-19–related patients were performed without specific adverse events or perioperative COVID-19 transmission. Our experience setting up a negative-pressure operating room and conservative perioperative protocol to prevent COVID-19 transmission will help plan and execute infection control measures in the future.

Social and Family Medicine
A comparative study of the psychological impacts of tasks related and unrelated to COVID-19 on nurses: a cross-sectional study: Hyun Ji Kim, Geon Ho Lee; J Yeungnam Med Sci. 2022;39(3):216-222. Published online November 3, 2021; DOI: https://doi.org/10.12701/yujm.2021.01361

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Abstract PDF

Background
This study assessed the psychological impact of the outbreak of coronavirus disease 2019 (COVID-19) on university hospital nurses. It provides an assessment of mental health issues, including depression, anxiety, distress, and burnout of nurses dealing directly and indirectly with COVID-19.
Methods
In a web-based, cross-sectional study, 111 nurses from Daegu Catholic University Hospital in Korea were enrolled from August 4 to August 9, 2020. Patient Health Questionnaire-9, Generalized Anxiety Disorder-7, Impact of Event Scale-Revised, and Maslach Burnout Inventory were used to assess the psychological symptoms of depression, anxiety, psychological distress, and burnout among the study participants.
Results
Of 111 nurses, 35 (31.5%), nine (8.1%), 26 (23.4%), and 49 (44.1%) experienced depression, anxiety, distress, and burnout, respectively. Nurses who performed COVID-19–related tasks were more likely to have moderate depression (related vs. unrelated, 52.0% vs. 25.6%; p=0.037). There were no differences in anxiety, distress, and burnout between nurses with and without COVID-19–related tasks. More than 50% of the participants showed receptive and positive attitudes toward caring for COVID-19 patients.
Conclusion
Nurses who performed COVID-19–related tasks had a higher risk of depression. There were no significant differences in anxiety, distress, and burnout between the two groups. Since nurses who perform COVID-19–related tasks are more prone to psychological distress, continued psychiatric interventions are required for infectious disease outbreaks with a high mortality rate for healthcare workers who are emotionally vulnerable.

Citations

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Three years of pandemic stress and staffing challenges: a retrospective qualitative study of COVID-19 impacts on frontline healthcare workers’ mental health and wellbeing
Brian En Chyi Lee, Mathew Ling, Leanne Boyd, Craig A. Olsson, Hannah Michelle LaFontaine Harvey, Jade Sheen
BMC Psychiatry.2025;[Epub] CrossRef
Key predictors of psychological distress and wellbeing in Australian frontline healthcare workers during COVID-19 (Omicron wave)
Brian En Chyi Lee, Mathew Ling, Leanne Boyd, Craig A. Olsson, Jade Sheen
Frontiers in Psychology.2023;[Epub] CrossRef
Depression and burnout among Chinese nurses during COVID-19 pandemic: a mediation and moderation analysis model among frontline nurses and nonfrontline nurses caring for COVID-19 patients
Jingjun Wang, Xia Huang, Mengmeng Wang, Lei Huang, Ya Wang
BMC Psychiatry.2023;[Epub] CrossRef
Frontline nurses' burnout and its associated factors during the COVID-19 pandemic in South Korea
Eun-Young Noh, Yeon-Hwan Park, Young Jun Chai, Hyun Jeong Kim, Eunjin Kim
Applied Nursing Research.2022; 67: 151622. CrossRef
Characteristics of Occupational Burnout among Nurses of Various Specialties and in the Time of the COVID-19 Pandemic—Review
Robert Ślusarz, Klaudia Cwiekala-Lewis, Mariusz Wysokiński, Karolina Filipska-Blejder, Wiesław Fidecki, Monika Biercewicz
International Journal of Environmental Research and Public Health.2022; 19(21): 13775. CrossRef

Pediatrics, Perinatology, and Child Health
Increase in blood glucose level and incidence of diabetic ketoacidosis in children with type 1 diabetes mellitus in the Daegu-Gyeongbuk area during the coronavirus disease 2019 (COVID-19) pandemic: a retrospective cross-sectional study: Mi Seon Lee, Rosie Lee, Cheol Woo Ko, Jung Eun Moon; J Yeungnam Med Sci. 2022;39(1):46-52. Published online August 26, 2021; DOI: https://doi.org/10.12701/yujm.2021.01221

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Abstract PDF

Background
The coronavirus disease 2019 (COVID-19) outbreak in the Daegu-Gyeongbuk area in 2020 has caused difficulties in the daily life and hospital care of children with type 1 diabetes mellitus (T1DM). We detected an increase in blood sugar levels in these children and the number of patients hospitalized with more severe diabetic ketoacidosis (DKA) compared to those before COVID-19.
Methods
This single-center study was conducted at Kyungpook National University Children’s Hospital. The following patient groups were included; 45 returning patients diagnosed with T1DM and undergoing insulin treatment for more than 2 years and 20 patients newly diagnosed with T1DM before and after COVID-19 were selected by age matching. Returning patients before and after the outbreak were selected, and changes in hemoglobin A1c (HbA1c) levels were retrospectively reviewed. The HbA1c levels and severity of symptoms in newly diagnosed patients during hospitalization were examined.
Results
HbA1c levels in returning patients with T1DM were significantly increased after COVID-19 (before, 7.70%±1.38% vs. after, 8.30%±2.05%; p=0.012). There were 10 and 10 newly diagnosed patients before and after COVID-19, respectively. The proportion of patients with drowsiness and dyspnea at the time of admission was higher after COVID-19 than before (before, 2 of 10 vs. after, 4 of 10). The HbA1c levels were higher in newly diagnosed patients hospitalized after COVID-19 than before (before, 11.15% vs. after, 13.60%; p=0.036).
Conclusion
Due to COVID-19 in the Daegu-Gyeongbuk area, there was an increase in blood glucose levels in children with T1DM and in the incidence of severe DKA in newly diagnosed diabetes mellitus patients.

Citations

Citations to this article as recorded by

Commentary on "Incidence rate and characteristics of newly diagnosed type 1 diabetes in a Vietnamese tertiary pediatric center: challenges in early detection"
Young Suk Shim
Annals of Pediatric Endocrinology & Metabolism.2025; 30(5): 227. CrossRef
Incidences of newly diagnosed childhood diabetes and onset severity: a multicenter regional study in Thailand over two decades and during the COVID-19 pandemic
Pattharaporn Sinthuprasith, Karn Wejaphikul, Dolrutai Puttawong, Hataitip Tang-Ngam, Naphatsorn Sanrattana, Kevalee Unachak, Prapai Dejkhamron
Journal of Pediatric Endocrinology and Metabolism.2024; 37(6): 487. CrossRef
COVID-19 infection and inactivated vaccination: Impacts on clinical and immunological profiles in Chinese children with type 1 diabetes
Zhen-Ran Xu, Li Xi, Jing Wu, Jin-Wen Ni, Fei-Hong Luo, Miao-Ying Zhang
World Journal of Diabetes.2024; 15(12): 2276. CrossRef
Incidence of diabetic ketoacidosis during COVID-19 pandemic: a meta-analysis of 124,597 children with diabetes
Anas Elgenidy, Ahmed K. Awad, Khaled Saad, Mostafa Atef, Hatem Helmy El-Leithy, Ahmed A. Obiedallah, Emad M. Hammad, Faisal-Alkhateeb Ahmad, Ahmad M. Ali, Hamad Ghaleb Dailah, Amira Elhoufey, Samaher Fathy Taha
Pediatric Research.2023; 93(5): 1149. CrossRef
Comments on Rahmati et al., The global impact of COVID‐19 pandemic on the incidence of pediatric new‐onset type 1 diabetes and ketoacidosis: A systematic review and meta‐analysis. J Med Virol. 2022; 1‐16 (doi: 10.1002/jmv.27996)
Joachim Rosenbauer, Anna Stahl‐Pehe, Sabrina Schlesinger, Oliver Kuß
Journal of Medical Virology.2023;[Epub] CrossRef
Impact of the COVID-19 Pandemic on Children and Adolescents with New-Onset Type 1 Diabetes
Clemens Kamrath, Alexander J. Eckert, Reinhard W. Holl, Joachim Rosenbauer, Andrea Scaramuzza
Pediatric Diabetes.2023; 2023: 1. CrossRef
Difficulties in differential diagnosis of carbohydrate metabolism disorders in patients with coronavirus infection in real clinical practice. Case report
Tatyana N. Markova, Mukhamed S. Stas, Valentina V. Chibisova, Anastasia A. Anchutina
Consilium Medicum.2023; 25(4): 241. CrossRef
Endocrinological Involvement in Children and Adolescents Affected by COVID-19: A Narrative Review
Valeria Calcaterra, Veronica Maria Tagi, Raffaella De Santis, Andrea Biuso, Silvia Taranto, Enza D’Auria, Gianvincenzo Zuccotti
Journal of Clinical Medicine.2023; 12(16): 5248. CrossRef
Glycemic control and complications of type 2 diabetes mellitus in children and adolescents during the COVID-19 outbreak
Kyeong Eun Oh, Yu Jin Kim, Ye Rim Oh, Eungu Kang, Hyo-Kyoung Nam, Young-Jun Rhie, Kee-Hyoung Lee
Annals of Pediatric Endocrinology & Metabolism.2023; 28(4): 275. CrossRef
Incidence of Diabetic Ketoacidosis Among Pediatrics With Type 1 Diabetes Prior to and During COVID-19 Pandemic: A Meta-Analysis of Observational Studies
Osamah M. Alfayez, Kholood S. Aldmasi, Nada H. Alruwais, Nouf M. Bin Awad, Majed S. Al Yami, Omar A. Almohammed, Abdulaali R. Almutairi
Frontiers in Endocrinology.2022;[Epub] CrossRef
Comparison of Initial Presentation of Pediatric Diabetes Before and During the Coronavirus Disease 2019 Pandemic Era
Yoonha Lee, Minseung Kim, Kyeongeun Oh, Eungu Kang, Young-Jun Rhie, Jieun Lee, Yong Hee Hong, Young-Lim Shin, Jae Hyun Kim
Journal of Korean Medical Science.2022;[Epub] CrossRef
The global impact of COVID‐19 pandemic on the incidence of pediatric new‐onset type 1 diabetes and ketoacidosis: A systematic review and meta‐analysis
Masoud Rahmati, Maryam Keshvari, Shahrzad Mirnasuri, Dong K. Yon, Seung W. Lee, Jae Il Shin, Lee Smith
Journal of Medical Virology.2022; 94(11): 5112. CrossRef
COVID-19 and diabetes: What do we know so far?
Prakash Gangadaran, Himabindu Padinjarathil, Shri Hari Subhashri Rajendran, Manasi P Jogalekar, Chae Moon Hong, Baladhandapani Aruchamy, Uma Maheswari Rajendran, Sridharan Gurunagarajan, Anand Krishnan, Prasanna Ramani, Kavimani Subramanian
Experimental Biology and Medicine.2022; 247(15): 1330. CrossRef
Stress hyperglycemia, Diabetes mellitus and COVID-19 infection: The impact on newly diagnosed type 1 diabetes
Ioanna Farakla, Theano Lagousi, Michael Miligkos, Nicolas C. Nicolaides, Ioannis-Anargyros Vasilakis, Maria Mpinou, Maria Dolianiti, Elina Katechaki, Anilia Taliou, Vasiliki Spoulou, Christina Kanaka-Gantenbein
Frontiers in Clinical Diabetes and Healthcare.2022;[Epub] CrossRef

Oncology and Cancer Research
Treatment decision for cancer patients with fever during the coronavirus disease 2019 (COVID-19) pandemic: In Hee Lee, Sung Ae Koh, Soo Jung Lee, Sun Ah Lee, Yoon Young Cho, Ji Yeon Lee, Jin Young Kim; Yeungnam Univ J Med. 2021;38(4):344-349. Published online August 23, 2021; DOI: https://doi.org/10.12701/yujm.2021.01144

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Abstract PDF: Background
Cancer patients have been disproportionally affected by the coronavirus disease 2019 (COVID-19) pandemic, with high rates of severe outcomes and mortality. Fever is the most common symptom in COVID-19 patients. During the COVID-19 pandemic, physicians may have difficulty in determining the cause of fever (COVID-19, another infection, or cancer fever) in cancer patients. Furthermore, there are no specific guidelines for managing cancer patients with fever during the COVID-19 pandemic. Thus, this study evaluated the clinical characteristics and outcomes of cancer patients with fever during the COVID-19 pandemic.
Methods
This study retrospectively reviewed the medical records of 328 cancer patients with COVID-19 symptoms (fever) admitted to five hospitals in Daegu, Korea from January to October 2020. We obtained data on demographics, clinical manifestations, laboratory test results, chest computed tomography images, cancer history, cancer treatment, and outcomes of all enrolled patients from electronic medical records.
Results
The most common COVID-19-like symptoms were fever (n=256, 78%). Among 256 patients with fever, only three (1.2%) were diagnosed with COVID-19. Most patients (253, 98.8%) with fever were not diagnosed with COVID-19. The most common solid malignancies were lung cancer (65, 19.8%) and hepatobiliary cancer (61, 18.6%). Twenty patients with fever experienced a delay in receiving cancer treatment. Eighteen patients discontinued active cancer treatment because of fever. Major events during the treatment delay period included death (2.7%), cancer progression (1.5%), and major organ dysfunction (2.7%).
Conclusion
Considering that only 0.9% of patients tested for COVID-19 were positive, screening for COVID-19 in cancer patients with fever should be based on the physician’s clinical decision, and patients might not be routinely tested.

Emergency and Critical Care Medicine
Impact of an emergency department resident strike during the coronavirus disease 2019 (COVID-19) pandemic in Daegu, South Korea: a retrospective cross-sectional study: Yo Han Cho, Jae Wan Cho, Hyun Wook Ryoo, Sungbae Moon, Jung Ho Kim, Sang-Hun Lee, Tae Chang Jang, Dong Eun Lee; J Yeungnam Med Sci. 2022;39(1):31-38. Published online August 10, 2021; DOI: https://doi.org/10.12701/yujm.2021.01130

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Abstract PDF

Background
To prepare for future work stoppages in the medical industry, this study aimed to identify the effects of healthcare worker strikes on the mortality rate of patients visiting the emergency department (ED) at six training hospitals in Daegu, Korea.
Methods
We used a retrospective, cross-sectional, multicenter design to analyze the medical records of patients who visited six training hospitals in Daegu (August 21–September 8, 2020). For comparison, control period 1 was set as the same period in the previous year (August 21–September 8, 2019) and control period 2 was set as July 1–19, 2020. Patient characteristics including age, sex, and time of ED visit were investigated along with mode of arrival, length of ED stay, and in-hospital mortality. The experimental and control groups were compared using t-tests, and Mann-Whitney U-test, chi-square test, and Fisher exact tests, as appropriate. Univariate logistic regression was performed to identify significant factors, followed by multivariate logistic regression analysis.
Results
During the study period, 31,357 patients visited the ED, of which 7,749 belonged to the experimental group. Control periods 1 and 2 included 13,100 and 10,243 patients, respectively. No significant in-hospital mortality differences were found between study periods; however, the results showed statistically significant differences in the length of ED stay.
Conclusion
The ED resident strike did not influence the mortality rate of patients who visited the EDs of six training hospitals in Daegu. Furthermore, the number of patients admitted and the length of ED stay decreased during the strike period.

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Focused Review article

Pulmonary and Respiratory Medicine
Novel respiratory infectious diseases in Korea: Hyun Jung Kim; Yeungnam Univ J Med. 2020;37(4):286-295. Published online September 23, 2020; DOI: https://doi.org/10.12701/yujm.2020.00633

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Abstract PDF

Respiratory infections are very common and highly contagious. Respiratory infectious diseases affect not only the person infected but also the family members and the society. As medical sciences advance, several diseases have been conquered; however, the impact of novel infectious diseases on the society is enormous. As the clinical presentation of respiratory infections is similar regardless of the pathogen, the causative agent is not distinguishable by symptoms alone. Moreover, it is difficult to develop a cure because of the various viral mutations. Various respiratory infectious diseases ranging from influenza, which threaten the health of mankind globally, to the coronavirus disease 2019, which resulted in a pandemic, exist. Contrary to human expectations that development in health care and improvement in hygiene will conquer infectious diseases, humankind’s health and social systems are threatened by novel infectious diseases. Owing to the development of transport and trading activity, the rate of spread of new infectious diseases is increasing. As respiratory infections can threaten the members of the global community at any time, investigations on preventing the transmission of these diseases as well as development of effective antivirals and vaccines are of utmost importance and require a worldwide effort.

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Communication

Infectious Disease
Yeungnam University type drive-through (YU-Thru) coronavirus disease 2019 (COVID-19) screening system: a rapid and safe screening system: Wan Seok Seo, Seong Ho Kim, Si Youn Song, Jian Hur, Jun Lee, Sunho Choi, Yoojung Lee, Dai Seg Bai; Yeungnam Univ J Med. 2020;37(4):349-355. Published online September 18, 2020; DOI: https://doi.org/10.12701/yujm.2020.00640

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102 Download
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Abstract PDF

Active and prompt scale-up screening tests are essential to efficiently control the coronavirus disease 2019 (COVID-19) outbreak. The goal of this work was to identify shortcomings in the conventional screening system (CSS) implemented in the beginning of the outbreak. To overcome these shortcomings, we then introduced a novel, independently developed system called the Yeungnam University type drive-through (YU-Thru), and distributed it nationwide in Korea. This system is similar to the drive-throughs utilized by fast food restaurants. YU-Thru system has shortened the time taken to test a single person to 2–4 minutes, by completely eliminating the time required to clean and ventilate the specimen collection room. This time requirement was a major drawback of the CSS. YU-Thru system also reduced the risk of subjects and medical staff infecting one another by using a separate and closed examination system. On average, 50 to 60 tests were conducted per day when using the CSS, while now up to 350 tests per day are conducted with the YU-Thru system. We believe that the YU-Thru system has made an important contribution to the rapid detection of COVID-19 in Daegu, South Korea. Here, we will describe the YU-Thru system in detail so that other countries experiencing COVID-19 outbreaks can take advantage of this system.

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