1.Far-Lateral Transforaminal Unilateral Biportal Endoscopic Lumbar Discectomy for Upper Lumbar Disc Herniations
Jin Seop HWANG ; Sang Hyub LEE ; Dain JEONG ; Jae-Won JANG ; Yong Eun CHO ; Dong-Geun LEE ; Choon Keun PARK ; Chung Kee CHOUGH
Neurospine 2025;22(1):14-27
		                        		
		                        			 Objective:
		                        			The upper lumbar region has distinctive anatomical characteristics that contribute to the challenges of performing discectomy. We introduce far-lateral transforaminal unilateral biportal endoscopic (UBE) lumbar discectomy for central or paracentral disc herniations in the upper lumbar region. 
		                        		
		                        			Methods:
		                        			We conducted retrospective review of the patients who underwent a far-lateral transforaminal UBE lumbar discectomy at our institution from January 2018 to September 2024. The electronic medical records, operative records, and radiologic images of the patients were reviewed. 
		                        		
		                        			Results:
		                        			A total of 27 patients underwent far-lateral transforaminal UBE lumbar discectomy for central or paracentral disc herniations in the upper lumbar region. The patient had a mean age of 54.0 ± 13.7 years. Operation was performed at the L1–2 level in 3 patients (11.1%), L2–3 in 9 patients (33.3%), and L3–4 in 15 patients (55.6%). The patients were followed-up for a mean of 27.7 ± 19.3 months. The Oswestry Disability Index was significantly decreased from 36.3 ± 6.8 preoperatively to 3.7 ± 3.3 at last follow-up (p < 0.001). The visual analogue scale (VAS) back was significantly decreased from 7.8 ± 0.9 preoperatively to 3.1 ± 0.6 postoperative day 2 (p < 0.001). The VAS leg was significantly decreased from 8.1 ± 0.8 preoperatively to 2.3 ± 0.7 postoperative day 2 (p < 0.001). 
		                        		
		                        			Conclusion
		                        			The far-lateral transforaminal UBE lumbar discectomy would be a viable surgical option for upper lumbar disc herniations. 
		                        		
		                        		
		                        		
		                        	
2.Erratum: Induction of apoptotic cell death in human bladder cancer cells by ethanol extract of Zanthoxylum schinifolium leaf, through ROSdependent inactivation of the PI3K/ Akt signaling pathway
Cheol PARK ; Eun Ok CHOI ; Hyun HWANGBO ; Hyesook LEE ; Jin-Woo JEONG ; Min Ho HAN ; Sung-Kwon MOON ; Seok Joong YUN ; Wun-Jae KIM ; Gi-Young KIM ; Hye-Jin HWANG ; Yung Hyun CHOI
Nutrition Research and Practice 2025;19(2):328-330
		                        		
		                        		
		                        		
		                        	
3.Clinical practice in office hysteroscopy
Namkung JEONG ; Angela CHO ; Yu-Jin KOO ; Jun-Woo AHN ; Hyuntae PARK ; Eun Sil LEE ; Sang Wook YI ; Won Duk JOO ; Sang-Hoon LEE ; Jae Kwan LEE ; Sa Ra LEE ;
Obstetrics & Gynecology Science 2025;68(3):175-185
		                        		
		                        			
		                        			 Hysteroscopy is particularly valuable for the diagnosis of uterine cavity abnormalities through direct visualization. The development of office hysteroscopy has expanded the range of diagnostic and surgical procedures available. These detailed guidelines include patient counseling and the selection and setting of office hysteroscopy, including room, equipment, and medical staff. Analgesia or local anesthesia is often required in selective office hysteroscopy cases. Cervical dilation and preparation using medical or mechanical methods are required for most diagnostic hysteroscopic procedures. Methods for optimizing visualization and choosing suitable distension media are important for a successful office hysteroscopy. It is crucial to adhere to guidelines to prevent complications, such as vasovagal syncope, cervical trauma, uterine perforation, fluid overload, and embolism. Vaginoscopy can be a good alternative option for alleviating pain, especially in cases where the insertion of a vaginal speculum is expected to be challenging. 
		                        		
		                        		
		                        		
		                        	
4.Factors influencing satisfaction with medical services in medically underserved populations: an analytical cross-sectional study at a free medical clinic in the Republic of Korea
Joo Hyun KIM ; Yeon Jeong HEO ; Jae Bok KWAK ; Samil PARK ; Curie AHN ; So Hee AHN ; Bumjo OH ; Jung Sik LEE ; Jun Hyun LEE ; Ho Young LEE
Osong Public Health and Research Perspectives 2025;16(2):181-191
		                        		
		                        			 Objectives:
		                        			This study aimed to explore factors influencing satisfaction with medical services among medically underserved populations at the free medical clinic, providing data to improve free medical services for these populations. 
		                        		
		                        			Methods:
		                        			We employed a descriptive correlational study design involving 112 individuals (aged 19 years and older) from medically underserved populations who visited the clinic. Data were collected through face-to-face surveys from September to October 2023, and statistical analyses (t-tests, analysis of variance, Pearson correlation, and hierarchical multiple regression) were used to identify key predictors of satisfaction. 
		                        		
		                        			Results:
		                        			Perceived support from healthcare providers emerged as the strongest predictor ofsatisfaction with medical services, demonstrating a significant positive association. While socialsupport was positively correlated with perceived support from healthcare providers, it did not independently predict satisfaction. 
		                        		
		                        			Conclusion
		                        			These findings underscore the importance of healthcare provider and social supportin increasing satisfaction with medical services among medically underserved populations.Developing tailored healthcare programs and specialized healthcare provider training are essential strategies to improve healthcare access and outcomes for these vulnerable groups. 
		                        		
		                        		
		                        		
		                        	
5.Far-Lateral Transforaminal Unilateral Biportal Endoscopic Lumbar Discectomy for Upper Lumbar Disc Herniations
Jin Seop HWANG ; Sang Hyub LEE ; Dain JEONG ; Jae-Won JANG ; Yong Eun CHO ; Dong-Geun LEE ; Choon Keun PARK ; Chung Kee CHOUGH
Neurospine 2025;22(1):14-27
		                        		
		                        			 Objective:
		                        			The upper lumbar region has distinctive anatomical characteristics that contribute to the challenges of performing discectomy. We introduce far-lateral transforaminal unilateral biportal endoscopic (UBE) lumbar discectomy for central or paracentral disc herniations in the upper lumbar region. 
		                        		
		                        			Methods:
		                        			We conducted retrospective review of the patients who underwent a far-lateral transforaminal UBE lumbar discectomy at our institution from January 2018 to September 2024. The electronic medical records, operative records, and radiologic images of the patients were reviewed. 
		                        		
		                        			Results:
		                        			A total of 27 patients underwent far-lateral transforaminal UBE lumbar discectomy for central or paracentral disc herniations in the upper lumbar region. The patient had a mean age of 54.0 ± 13.7 years. Operation was performed at the L1–2 level in 3 patients (11.1%), L2–3 in 9 patients (33.3%), and L3–4 in 15 patients (55.6%). The patients were followed-up for a mean of 27.7 ± 19.3 months. The Oswestry Disability Index was significantly decreased from 36.3 ± 6.8 preoperatively to 3.7 ± 3.3 at last follow-up (p < 0.001). The visual analogue scale (VAS) back was significantly decreased from 7.8 ± 0.9 preoperatively to 3.1 ± 0.6 postoperative day 2 (p < 0.001). The VAS leg was significantly decreased from 8.1 ± 0.8 preoperatively to 2.3 ± 0.7 postoperative day 2 (p < 0.001). 
		                        		
		                        			Conclusion
		                        			The far-lateral transforaminal UBE lumbar discectomy would be a viable surgical option for upper lumbar disc herniations. 
		                        		
		                        		
		                        		
		                        	
6.Erratum: Induction of apoptotic cell death in human bladder cancer cells by ethanol extract of Zanthoxylum schinifolium leaf, through ROSdependent inactivation of the PI3K/ Akt signaling pathway
Cheol PARK ; Eun Ok CHOI ; Hyun HWANGBO ; Hyesook LEE ; Jin-Woo JEONG ; Min Ho HAN ; Sung-Kwon MOON ; Seok Joong YUN ; Wun-Jae KIM ; Gi-Young KIM ; Hye-Jin HWANG ; Yung Hyun CHOI
Nutrition Research and Practice 2025;19(2):328-330
		                        		
		                        		
		                        		
		                        	
7.Clinical practice in office hysteroscopy
Namkung JEONG ; Angela CHO ; Yu-Jin KOO ; Jun-Woo AHN ; Hyuntae PARK ; Eun Sil LEE ; Sang Wook YI ; Won Duk JOO ; Sang-Hoon LEE ; Jae Kwan LEE ; Sa Ra LEE ;
Obstetrics & Gynecology Science 2025;68(3):175-185
		                        		
		                        			
		                        			 Hysteroscopy is particularly valuable for the diagnosis of uterine cavity abnormalities through direct visualization. The development of office hysteroscopy has expanded the range of diagnostic and surgical procedures available. These detailed guidelines include patient counseling and the selection and setting of office hysteroscopy, including room, equipment, and medical staff. Analgesia or local anesthesia is often required in selective office hysteroscopy cases. Cervical dilation and preparation using medical or mechanical methods are required for most diagnostic hysteroscopic procedures. Methods for optimizing visualization and choosing suitable distension media are important for a successful office hysteroscopy. It is crucial to adhere to guidelines to prevent complications, such as vasovagal syncope, cervical trauma, uterine perforation, fluid overload, and embolism. Vaginoscopy can be a good alternative option for alleviating pain, especially in cases where the insertion of a vaginal speculum is expected to be challenging. 
		                        		
		                        		
		                        		
		                        	
8.Factors influencing satisfaction with medical services in medically underserved populations: an analytical cross-sectional study at a free medical clinic in the Republic of Korea
Joo Hyun KIM ; Yeon Jeong HEO ; Jae Bok KWAK ; Samil PARK ; Curie AHN ; So Hee AHN ; Bumjo OH ; Jung Sik LEE ; Jun Hyun LEE ; Ho Young LEE
Osong Public Health and Research Perspectives 2025;16(2):181-191
		                        		
		                        			 Objectives:
		                        			This study aimed to explore factors influencing satisfaction with medical services among medically underserved populations at the free medical clinic, providing data to improve free medical services for these populations. 
		                        		
		                        			Methods:
		                        			We employed a descriptive correlational study design involving 112 individuals (aged 19 years and older) from medically underserved populations who visited the clinic. Data were collected through face-to-face surveys from September to October 2023, and statistical analyses (t-tests, analysis of variance, Pearson correlation, and hierarchical multiple regression) were used to identify key predictors of satisfaction. 
		                        		
		                        			Results:
		                        			Perceived support from healthcare providers emerged as the strongest predictor ofsatisfaction with medical services, demonstrating a significant positive association. While socialsupport was positively correlated with perceived support from healthcare providers, it did not independently predict satisfaction. 
		                        		
		                        			Conclusion
		                        			These findings underscore the importance of healthcare provider and social supportin increasing satisfaction with medical services among medically underserved populations.Developing tailored healthcare programs and specialized healthcare provider training are essential strategies to improve healthcare access and outcomes for these vulnerable groups. 
		                        		
		                        		
		                        		
		                        	
9.Rapid Recovery From SARS-CoV-2Infection Among Immunocompromised Children Despite Limited Neutralizing Antibody Response: A Virologic and Sero-Immunologic Analysis of a Single-Center Cohort
Doo Ri KIM ; Byoung Kwon PARK ; Jin Yang BAEK ; Areum SHIN ; Ji Won LEE ; Hee Young JU ; Hee Won CHO ; Keon Hee YOO ; Ki Woong SUNG ; Chae-Hong JEONG ; Tae Yeul KIM ; June-Young KOH ; Jae-Hoon KO ; Yae-Jean KIM
Journal of Korean Medical Science 2025;40(12):e52-
		                        		
		                        			 Background:
		                        			Immunocompromised (IC) pediatric patients are at increased risk of severe acute respiratory syndrome coronavirus 2 infection, but the viral kinetics and seroimmunologic response in pediatric IC patients are not fully understood. 
		                        		
		                        			Methods:
		                        			From April to June 2022, a prospective cohort study was conducted. IC pediatric patients hospitalized for coronavirus disease 2019 (COVID-19) were enrolled. Serial saliva swab and serum specimens were subjected to reverse transcription polymerase chain reaction assays with mutation sequencing, viral culture, anti-spike-protein, anti-nucleocapsid antibody assays, plaque reduction neutralization test (PRNT) and multiplex cytokine assays. 
		                        		
		                        			Results:
		                        			Eleven IC children were evaluated. Their COVID-19 symptoms resolved promptly (median, 2.5 days; interquartile range, 2.0–4.3). Saliva swab specimens contained lower viral loads than nasopharyngeal swabs (P = 0.008). All cases were BA.2 infection, and 45.5% tested negative within 14 days by saliva swab from symptom onset. Eight (72.7%) showed a time-dependent increase in BA.2 PRNT titers, followed by rapid waning. Multiplex cytokine assays revealed that monocyte/macrophage activation and Th 1 responses were comparable to those of non-IC adults. Activation of interleukin (IL)-1Ra and IL-6 was brief, and IL-17A was suppressed. Activated interferon (IFN)-γ and IL-18/IL-1F4 signals were observed. 
		                        		
		                        			Conclusion
		                        			IC pediatric patients rapidly recovered from COVID-19 with low viral loads.Antibody response was limited, but cytokine analysis suggested an enhanced IFN-γ- and IL-18-mediated immune response without excessive activation of inflammatory cascades. To validate our observation, immune cell-based functional studies need to be conducted among IC and non-IC children. 
		                        		
		                        		
		                        		
		                        	
10.Neutralizing Activity and T-Cell Responses Against Wild Type SARSCoV-2 Virus and Omicron BA.5 Variant After Ancestral SARS-CoV-2 Vaccine Booster Dose in PLWH Receiving ART Based on CD4 T-Cell Count
Na Young HA ; Ah-Ra KIM ; Hyeongseok JEONG ; Shinhye CHEON ; Cho Rong PARK ; Jin Ho CHOE ; Hyo Jung KIM ; Jae Won YOON ; Miryoung KIM ; Mi Yeong AN ; Sukyoung JUNG ; Hyeon Nam DO ; Junewoo LEE ; Yeon-Sook KIM
Journal of Korean Medical Science 2025;40(9):e28-
		                        		
		                        			 Background:
		                        			We evaluated severe acute respiratory syndrome-coronavirus-2 (SARS-CoV-2)-specific humoral and cellular responses for up to 6 months after the 3rd dose of ancestral coronavirus disease 2019 (COVID-19) vaccination in people living with HIV (PLWH) and healthy controls (HCs) who were not infected with COVID-19. 
		                        		
		                        			Methods:
		                        			Anti-spike receptor-binding domain IgG (anti-RBD IgG) concentrations using chemiluminescence immunoassay and neutralizing antibodies using focus reduction neutralization test (FRNT) were assessed at 1 week after each dose of vaccination, and 3 and 6 months after the 3rd dose in 62 PLWH and 25 HCs. T-cell responses using intracellular cytokine stain were evaluated at 1 week before, and 1 week and 6 months after the 3rd dose. 
		                        		
		                        			Results:
		                        			At 1 week after the 3rd dose, adequate anti-RBD IgG (> 300 binding antibody unit /mL) was elicited in all PLWH except for one patient with 36 CD4 T-cell count/mm3 . The geometric mean titers of 50% FRNT against wild type (WT) and omicron BA.5 strains of SARS-CoV-2 in PLWH with CD4 T-cell count ≥ 500 cells/mm3(high CD4 recovery, HCDR) were comparable to HC, but they were significantly decreased in PLWH with CD4 T-cell count < 500/mm3 (low CD4 recovery, LCDR). After adjusting for age, gender, viral suppression, and number of preexisting comorbidities, CD4 T-cell counts < 500/mm3 significantly predicted a poor magnitude of neutralizing antibodies against WT, omicron BA.5, and XBB 1.5 strains among PLWH. Multivariable linear regression adjusting for age and gender revealed that LCDR was associated with reduced neutralizing activity (P = 0.017) and interferon-γ-producing T-cell responses (P = 0.049 for CD T-cell; P = 0.014 for CD8 T-cell) against WT, and strongly associated with more decreased cross-neutralization against omicron BA.5 strains (P < 0.001). 
		                        		
		                        			Conclusion
		                        			HCDR demonstrated robust humoral and cell-mediated immune responses after a booster dose of ancestral SARS-CoV-2 vaccine, whereas LCDR showed diminished immune responses against WT virus and more impaired cross-neutralization against omicron BA.5 strain. 
		                        		
		                        		
		                        		
		                        	
            
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