1.A Study of Otologic Symptoms and Prognosis in Patients With Ramsay Hunt Syndrome and Bell’s Palsy
Soo Young CHOI ; Tong In OH ; Eun Hye LEE ; Jae Min LEE ; Gang Won CHOI ; Hyun Ji LEE ; Sang Hoon KIM ; Seung Geun YEO
Korean Journal of Otolaryngology - Head and Neck Surgery 2022;65(5):260-267
		                        		
		                        			 Background and Objectives:
		                        			Although several studies have compared the characteristics of Ramsay Hunt syndrome (RHS) with Bell’s palsy (BP), the differences in comorbid symptoms and prognosis according to symptoms have not been determined. This study therefore evaluated the differences in otologic symptoms and prognosis between patients with these two conditions.Subjects and Method The medical records of 118 patients with RHS and 215 patients with BP were retrospectively reviewed. Factors compared in these two groups included otologic symptoms, general health condition, electroneurography (ENoG) and House-Brackmann grades. 
		                        		
		                        			Results:
		                        			Age, sex, body mass index, lipid profiles, ENoG, rate of diabetes, and side of palsy did not differ significantly between patients with RHS and BP (p>0.05). The rates of hearing disturbance, tinnitus, vertigo, and postauricular pain were significantly higher in RHS (p<0.05 each). Hearing disturbance was more frequent in patients with severe Bell’s facial palsy than with moderate Bell’s facial palsy (p<0.05). The prognosis of patients with BP and RHS who had otologic symptoms did not differ from those who had not (p>0.05). Additionally, in patients with facial paralysis, diabetes was associated with hearing disturbance and vertigo symptoms and dyslipidemia was associated with postauricular pain (p<0.05 each). 
		                        		
		                        			Conclusion
		                        			Otologic symptoms were more common in RHS than in BP. However, the prognosis of RHS and BP were not related to otologic symptoms. In patients with facial palsy hearing disturbance and vertigo were associated with diabetes and hypertension. Also, dyslipidemia was associated with post auricular pain. 
		                        		
		                        		
		                        		
		                        	
2.Rhabdomyosarcoma Following Traumatic Injury
Dae Gyu KWON ; Sung Jun PARK ; Young Hoon YOON ; Tong Joo LEE
The Journal of the Korean Orthopaedic Association 2020;55(3):271-275
		                        		
		                        			
		                        			 Trauma is frequently implicated in the development of sarcomas, including rhabdomyosarcoma. Rare soft tissue sarcomas have been reported to arise in scar tissue following surgical procedures or thermal or acid burns, at fracture sites, and in the vicinity of plastic or metal implants, usually after a latent period of several years. The authors encountered a case of a rhabdomyosarcoma arising from the forearm crushed by a conveyor belt 11 years ago. Several possible etiological factors for sarcoma development were identified in this patient, including tissue damage and inflammation, as well as the presence of metal implants and the limb’s exposure to radiation during multiple imaging tests. After severe soft tissue damage, the occurrence of a sarcoma should be considered and more attention should be paid to the causative factors for sarcoma. 
		                        		
		                        		
		                        		
		                        	
3.Corrigendum: Extensor Digitorum Brevis Manus.
Myung Hoon PARK ; Nak Chul KIM ; Tong joo LEE
The Journal of the Korean Orthopaedic Association 2018;53(4):374-374
		                        		
		                        			
		                        			Author requested to change the name of the last author. The correct name should be Tong joo Lee instead of Tong Ju Lee.
		                        		
		                        		
		                        		
		                        	
4.Seroprevalence of Toxoplasmosis with ELISA and Rapid Diagnostic Test among Residents in Gyodong-do, Inchon city, Korea: A Four-Year Follow-up.
Yeong Hoon KIM ; Ji hoo LEE ; Seong kyu AHN ; Tong Soo KIM ; Sung Jong HONG ; Chom Kyu CHONG ; Hye Jin AHN ; Ho Woo NAM
The Korean Journal of Parasitology 2017;55(3):247-254
		                        		
		                        			
		                        			ELISA has been used for the diagnosis of toxoplasmosis, but it is being gradually replaced by a rapid diagnostic test (RDT). We compared and analyzed ELISA and RDT results using the sera collected during 4 consecutive years from residents of Gyodong-do (Island), Incheon-city, Korea. Sera from 921, 993, 940, and 838 adult residents were collected on a yearly basis (2010–2013). ELISA was performed by using a crude extract of T. gondii RH strain antigen and IgG/IgM RDT mounted with recombinant fragment of major surface antigen (SAG1), GST-linker-SAG1A, were applied to the sera. Comparison between groups was analyzed by the Student’s t-test. The positive seroprevalence surged from 14.7% (135/921, 2010), 23.1% (231/993, 2011), 23.6% (222/940, 2012), and 32.1% (269/838, 2013) by ELISA. In contrast, RDT showed a more moderate increasing trend from 21.7% (200/921, 2010), 25.5% (253/993, 2011), 28.9% (272/940, 2012) and 33.1% (277/838, 2013). Discrepancies between ELISA and RDT were noted near the cut-off value. At the OD 0.15–0.24 range, RDT could detect 16.1% (169/1051) more positives, which suggests an early or acute toxoplasmosis, but at the OD 0.25–0.34 range, ELISA could detect 35.9% (92/256) more positives of possible chronic infections. Over the OD > 0.35 ELISA and RDT agreed in the majority of the cases. This surge in seroprevalence may be caused by the organic agriculture in addition to eating behavior or increase in pets among Koreans. These facts may be applied on a full-scale national survey using RDT to supplement ELISA to define the characteristics of the infection.
		                        		
		                        		
		                        		
		                        			Adult
		                        			;
		                        		
		                        			Antigens, Surface
		                        			;
		                        		
		                        			Diagnosis
		                        			;
		                        		
		                        			Diagnostic Tests, Routine*
		                        			;
		                        		
		                        			Enzyme-Linked Immunosorbent Assay*
		                        			;
		                        		
		                        			Feeding Behavior
		                        			;
		                        		
		                        			Follow-Up Studies*
		                        			;
		                        		
		                        			Humans
		                        			;
		                        		
		                        			Incheon*
		                        			;
		                        		
		                        			Korea*
		                        			;
		                        		
		                        			Organic Agriculture
		                        			;
		                        		
		                        			Seroepidemiologic Studies*
		                        			;
		                        		
		                        			Toxoplasma
		                        			;
		                        		
		                        			Toxoplasmosis*
		                        			
		                        		
		                        	
5.High Seroprevalence of Toxoplasmosis Detected by RDT among the Residents of Seokmo-do (Island) in Ganghwa-Gun, Incheon City, Korea.
Yeong Hoon KIM ; Jihoo LEE ; Seongkyu AHN ; Tong Soo KIM ; Sung Jong HONG ; Chom Kyu CHONG ; Hye Jin AHN ; Ho Woo NAM
The Korean Journal of Parasitology 2017;55(1):9-13
		                        		
		                        			
		                        			Seroprevalence of Toxoplasma gondii infection among the residents of Seokmo-do (Island) in Ganghwa-gun, Incheon, Korea was surveyed for 4 years by a rapid diagnostic test (RDT) using recombinant fragment of major surface antigen (SAG1), GST-linker-SAG1A. Sera from 312, 343, 390, and 362 adult residents were collected on a yearly basis from 2010 to 2013, respectively. Total positive seroprevalence regardless of gender was 29.2, 35.3, 38.7, and 45.3% from 2010 to 2013, respectively. Positive seroprevalence in male adults was 43.9, 48.2, 45.4, and 55.3%, which was far higher than that of the corresponding female adults which was 20.7, 29.2, 33.9, and 38.9%, from 2010 to 2013, respectively. This high seroprevalence of toxoplasmosis in Seokmo-do may have been caused in part by peculiar changes in the toxoplasmic environment of the island as it is a relatively isolated area preserving its natural habitat while also being connected by a bridge to the mainland. Further study is necessary to find out symptomatic patients and to confirm the risk factors.
		                        		
		                        		
		                        		
		                        			Adult
		                        			;
		                        		
		                        			Antigens, Surface
		                        			;
		                        		
		                        			Diagnostic Tests, Routine
		                        			;
		                        		
		                        			Ecosystem
		                        			;
		                        		
		                        			Female
		                        			;
		                        		
		                        			Humans
		                        			;
		                        		
		                        			Incheon*
		                        			;
		                        		
		                        			Korea*
		                        			;
		                        		
		                        			Male
		                        			;
		                        		
		                        			Risk Factors
		                        			;
		                        		
		                        			Seroepidemiologic Studies*
		                        			;
		                        		
		                        			Toxoplasmosis*
		                        			
		                        		
		                        	
6.Seroprevalence of Toxoplasmosis Detected by RDT in Residents near the DMZ (demilitarized zone) of Cheorwon-gun, Gangwon-do, Korea.
Yeong Hoon KIM ; Jihoo LEE ; Young Eun KIM ; Seongkyu AHN ; Tong Soo KIM ; Sung Jong HONG ; Chom Kyu CHONG ; Hye Jin AHN ; Ho Woo NAM
The Korean Journal of Parasitology 2017;55(4):385-389
		                        		
		                        			
		                        			Seroprevalence of Toxoplasma gondii infection among the residents of Cheorwon-gun, Gangwon-do, Korea, which partly includes the demilitarized zone (DMZ), were surveyed for 4 years and evaluated by RDT using recombinant fragment of major surface antigen (SAG1A). Sera from 1336, 583, 526, and 583 adult residents were collected on a yearly basis from 2010 to 2013, respectively. The total positive seroprevalence was 19.3, 21.9, 23.4, and 26.8% from 2010 to 2013, respectively. The positive seroprevalence in men (23.6, 27.5, 29.5, 34.6%) was far higher than women (14.1, 18.3, 19.4, 21.4%), from 2010 to 2013, respectively. This high seroprevalence of toxoplasmosis in Cheorwon-gun may have been influenced in part by its geographical locality of the area as it includes the DMZ, where civilian access is strictly limited, thus creating a relatively isolated area that is a well-preserved habitat. Further research is necessary to study the epidemiology of toxoplasmosis in this area.
		                        		
		                        		
		                        		
		                        			Adult
		                        			;
		                        		
		                        			Antigens, Surface
		                        			;
		                        		
		                        			Ecosystem
		                        			;
		                        		
		                        			Epidemiology
		                        			;
		                        		
		                        			Female
		                        			;
		                        		
		                        			Gangwon-do*
		                        			;
		                        		
		                        			Humans
		                        			;
		                        		
		                        			Korea*
		                        			;
		                        		
		                        			Male
		                        			;
		                        		
		                        			Seroepidemiologic Studies*
		                        			;
		                        		
		                        			Toxoplasma
		                        			;
		                        		
		                        			Toxoplasmosis*
		                        			
		                        		
		                        	
7.Extensor Digitorum Brevis Manus.
Myung Hoon PARK ; Nak Chul KIM ; Tong Ju LEE
The Journal of the Korean Orthopaedic Association 2017;52(6):562-565
		                        		
		                        			
		                        			Extensor digitorum brevis manus (EDBM) is a rare variation of the extensor muscle of the dorsum of the hand, which is found incidentally during surgery or magnetic resonance imaging (MRI). EDBM arises from the wrist capsule inferior to the extensor retinaculum, which frequently goes into the ulna side of the basis of the proximal phalanx between the 2nd and 3rd fingers. The aim of this report is evaluate to investigate the symptomatic mass on the dorsum of the hand and wrist using an image study (MRI or ultrasonography) to confirm whether it is a tumor or EDBM. Surgical excision was chosen as a treatment.
		                        		
		                        		
		                        		
		                        			Fingers
		                        			;
		                        		
		                        			Hand
		                        			;
		                        		
		                        			Magnetic Resonance Imaging
		                        			;
		                        		
		                        			Ulna
		                        			;
		                        		
		                        			Wrist
		                        			
		                        		
		                        	
8.Postnatal Treadmill Exercise Alleviates Prenatal Stress-Induced Anxiety in Offspring Rats by Enhancing Cell Proliferation Through 5-Hydroxytryptamine 1A Receptor Activation.
Sam Jun LEE ; Tae Woon KIM ; Hun Kyung PARK ; Sangyun YOON ; Ann Hee YOU ; Eun Jin MOON ; Dong Hoon SHIN ; Hanjin CHO
International Neurourology Journal 2016;20(Suppl 1):S57-S64
		                        		
		                        			
		                        			PURPOSE: Stress during pregnancy is a risk factor for the development of anxiety-related disorders in offspring later in life. The effects of treadmill exercise on anxiety-like behaviors and hippocampal cell proliferation were investigated using rats exposed to prenatal stress. METHODS: Exposure of pregnant rats to a hunting dog in an enclosed room was used to induce stress. Anxiety-like behaviors of offspring were evaluated using the elevated plus maze test. Immunohistochemistry for the detection of 5-bromo-2'-deoxyuridine and doublecortin (DCX) in the hippocampal dentate gyrus and 5-hydroxytryptamine 1A receptors (5-HT(1A)) in the dorsal raphe was conducted. Brain-derived neurotrophic factor (BDNF) and tyrosine kinase B (TrkB) levels in the hippocampus were evaluated by western blot analysis. RESULTS: Offspring of maternal rats exposed to stress during pregnancy showed anxiety-like behaviors. Offspring also showed reduced expression of BDNF, TrkB, and DCX in the dentate gyrus, decreased cell proliferation in the hippocampus, and reduced 5-HT(1A) expression in the dorsal raphe. Postnatal treadmill exercise by offspring, but not maternal exercise during pregnancy, enhanced cell proliferation and expression of these proteins. CONCLUSIONS: Postnatal treadmill exercise ameliorated anxiety-like behaviors in offspring of stressed pregnant rats, and the alleviating effect of exercise on these behaviors is hypothesized to result from enhancement of cell proliferation through 5-HT(1A) activation in offspring rats.
		                        		
		                        		
		                        		
		                        			Animals
		                        			;
		                        		
		                        			Anxiety*
		                        			;
		                        		
		                        			Blotting, Western
		                        			;
		                        		
		                        			Brain-Derived Neurotrophic Factor
		                        			;
		                        		
		                        			Bromodeoxyuridine
		                        			;
		                        		
		                        			Cell Proliferation*
		                        			;
		                        		
		                        			Dentate Gyrus
		                        			;
		                        		
		                        			Dogs
		                        			;
		                        		
		                        			Dorsal Raphe Nucleus
		                        			;
		                        		
		                        			Exercise Test
		                        			;
		                        		
		                        			Hippocampus
		                        			;
		                        		
		                        			Immunohistochemistry
		                        			;
		                        		
		                        			Pregnancy
		                        			;
		                        		
		                        			Prenatal Exposure Delayed Effects
		                        			;
		                        		
		                        			Protein-Tyrosine Kinases
		                        			;
		                        		
		                        			Rats*
		                        			;
		                        		
		                        			Receptor, Serotonin, 5-HT1A*
		                        			;
		                        		
		                        			Risk Factors
		                        			;
		                        		
		                        			Serotonin*
		                        			
		                        		
		                        	
9.Deep Vein Thrombosis in Patients with Pulmonary Embolism: Prevalance, Clinical Significance and Outcome.
Jun Sung LEE ; Tong MOON ; Tae Hoon KIM ; Se Young KIM ; Jun Young CHOI ; Kyung Bok LEE ; Yu Jin KWON ; Suk Hee SONG ; Su Hyun KIM ; Hae Ok KIM ; Ho Kyeong HWANG ; Min Ji KIM ; Young Kyoung LEE
Vascular Specialist International 2016;32(4):166-174
		                        		
		                        			
		                        			PURPOSE: Deep venous thrombosis (DVT) and pulmonary embolism (PE) are considered as similar disease entities representing different clinical manifestations. The objectives of this study were: 1) to determine the prevalence and outcome of DVT in patients with PE; 2) to identify additional risk factors for PE-related unfavorable outcome and 30-day all-cause mortality; and 3) to establish the clinical importance of screening for concomitant DVT. MATERIALS AND METHODS: From January 2013 to December 2015, a total of 141 patients with confirmed PE were evaluated. The prevalence and outcome of DVT in patients with PE was determined. Furthermore, the potential risk factors for PE-related unfavorable outcome and 30-day all-cause mortality were also analyzed. RESULTS: The prevalence of concomitant DVT was 45.4%. PE-related unfavorable outcome was observed in 21.9% of all concomitant DVT, with all-cause mortality of 21.9%. There was no significant relationship between the presence of concomitant DVT and the development of PE-related unfavorable outcome or all-cause mortality. Our results indicated that heart rate >100/min and peripheral oxygen saturation <90% were independent predictors for PE-related unfavorable outcome. Regarding all-cause mortality, active malignancy and hypotension or shock were significant risk factors. CONCLUSION: Our findings demonstrate that approximately half of patients with PE possess DVT. However, this study failed to establish any clinical significance of concomitant DVT for PE-related unfavorable outcome and all-cause mortality. Tachycardia and hypoxemia were identified as significant predictors for PE-related unfavorable outcome along with active malignancy and hypotension or shock as significant risk factors of all-cause mortality.
		                        		
		                        		
		                        		
		                        			Anoxia
		                        			;
		                        		
		                        			Heart Rate
		                        			;
		                        		
		                        			Humans
		                        			;
		                        		
		                        			Hypotension
		                        			;
		                        		
		                        			Mass Screening
		                        			;
		                        		
		                        			Mortality
		                        			;
		                        		
		                        			Oxygen
		                        			;
		                        		
		                        			Prevalence
		                        			;
		                        		
		                        			Pulmonary Embolism*
		                        			;
		                        		
		                        			Risk Factors
		                        			;
		                        		
		                        			Shock
		                        			;
		                        		
		                        			Tachycardia
		                        			;
		                        		
		                        			Venous Thrombosis*
		                        			
		                        		
		                        	
10.The Effect of Post-Treatment N-Acetylcysteine in LPS-Induced Acute Lung Injury of Rats.
Jae Sung CHOI ; Ho Sung LEE ; Ki Hyun SEO ; Ju Ock NA ; Yong Hoon KIM ; Soo Taek UH ; Choon Sik PARK ; Mee Hye OH ; Sang Han LEE ; Young Tong KIM
Tuberculosis and Respiratory Diseases 2012;73(1):22-31
		                        		
		                        			
		                        			BACKGROUND: Oxidation plays an important role in acute lung injury. This study was conducted in order to elucidate the effect of repetitive post-treatment of N-acetylcysteine (NAC) in lipopolysaccaride (LPS)-induced acute lung injury (ALI) of rats. METHODS: Six-week-old male Sprague-Dawley rats were divided into 4 groups. LPS (Escherichia coli 5 mg/kg) was administered intravenously via the tail vein. NAC (20 mg/kg) was injected intraperitoneally 3, 6, and 12 hours after LPS injection. Broncho-alveolar lavage fluid (BALF) and lung tissues were obtained to evaluate the ALI at 24 hours after LPS injection. The concentration of tumor necrosis factor alpha (TNF-alpha) and interleukin 1beta (IL-1beta) were measured in BALF. Nuclear factor kappaB (NF-kappaB), lipid peroxidation (LPO), and myeloperoxidase (MPO) were measured using lung tissues. Micro-computed tomography (micro-CT) images were examined in each group at 72 hours apart from the main experiments in order to observe the delayed effects of NAC. RESULTS: TNF-alpha and IL-1beta concentration in BALF were not different between LPS and NAC treatment groups. The concentration of LPO in NAC treatment group was significantly lower than that of LPS group (5.5+/-2.8 nmol/mL vs. 16.5+/-1.6 nmol/mL) (p=0.001). The activity of MPO in NAC treatment group was significantly lower than that of LPS group (6.4+/-1.8 unit/g vs. 11.2+/-6.3 unit/g, tissue) (p<0.048). The concentration of NF-kappaB in NAC treatment group was significantly lower than that of LPS group (0.3+/-0.1 ng/microL vs. 0.4+/-0.2 ng/microL) (p=0.0001). Micro-CT showed less extent of lung injury in NAC treatment than LPS group. CONCLUSION: After induction of ALI with lipopolysaccharide, the therapeutic administration of NAC partially attenuated the extent of ALI through the inhibition of NF-kappaB activation.
		                        		
		                        		
		                        		
		                        			Acetylcysteine
		                        			;
		                        		
		                        			Acute Lung Injury
		                        			;
		                        		
		                        			Animals
		                        			;
		                        		
		                        			Antioxidants
		                        			;
		                        		
		                        			Humans
		                        			;
		                        		
		                        			Interleukin-1beta
		                        			;
		                        		
		                        			Lipid Peroxidation
		                        			;
		                        		
		                        			Lung
		                        			;
		                        		
		                        			Lung Injury
		                        			;
		                        		
		                        			Male
		                        			;
		                        		
		                        			NF-kappa B
		                        			;
		                        		
		                        			Peroxidase
		                        			;
		                        		
		                        			Rats
		                        			;
		                        		
		                        			Rats, Sprague-Dawley
		                        			;
		                        		
		                        			Therapeutic Irrigation
		                        			;
		                        		
		                        			Tumor Necrosis Factor-alpha
		                        			;
		                        		
		                        			Veins
		                        			
		                        		
		                        	
            
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