1.Usefulness of Posterolateral Transforaminal Approach in Lumbar Radicular Pain.
Ji Woong PARK ; Hee Seung NAM ; Yongbum PARK
Annals of Rehabilitation Medicine 2011;35(3):395-404
OBJECTIVE: To compare the short-term effects and advantages of transforaminal epidural steroid injection (TFESI) performed using the conventional (CL) and posterolateral (PL) approaches. METHOD: Fifty patients with lumbar radicular pain from lumbar spinal stenosis and herniated lumbar disc were enrolled. Subjects were randomly assigned to one of two groups (CL or PL group). All procedures were performed using a C-arm (KMC 950, KOMED, Kwangju, Kyunggi, Korea). We compared the frequency of complications during the procedure and the effects of the pain block between the two groups at 2, 4, and 12 weeks after the procedure. RESULTS: There were no significant differences in the demographic data, initial VNS (Visual numeric scale), or ODI (Oswestry disability index) between the CL group (n=26) and the PL group (n=24). There was no statistically significant difference in the outcome measures (VNS and ODI) between the groups at 2, 4, or 12 weeks. Symptoms of nerve root irritation occurred in 1 case of the CL group and in 7 cases of the PL group (p<0.05). Pricking of spinal nerve during the procedure and transient weakness after the procedure occurred in 6 cases and 3 cases, respectively in the CL group, but did not occur in the PL group. CONCLUSION: Our findings suggest that the posterolateral approach represents an alternative TFESI method in cases with difficult needle tip positioning in the anterior epidural space, and could lower the risk of target nerve root irritation and nerve penetration.
Epidural Space
;
Humans
;
Needles
;
Outcome Assessment (Health Care)
;
Spinal Nerves
;
Spinal Stenosis
2.Effects of Glutathione on Reactive Oxygen Species-Induced Cytotoxicity in Human Retinal Pigment Epithelial Cell Line.
Jae Woong KOH ; Byoung Rai LEE ; Nam Chul JI
Journal of the Korean Ophthalmological Society 2002;43(9):1774-1780
PURPOSE: Oxidative stress is the well known causative factor for retinal damage. This study investigated the effects of glutathione on reactive oxygen species(ROS) induced injury in human retinal pigment epithelial(HRPE) cells. OBJECTS AND METHODS: HRPE cells (ATCC:CRL-2302) were cultured with DMEM media and exposed to oxidative stress (paraquat, hydrogen peroxide) and/or glutathione modulator[(buthionine sulfoximine (BSO), glutathione (GSH), 2-oxo 4-thiazolidine carboxylic acid (OTC)] for 2 days. The cell viability was determined by measuring the amount of reduced 3-[4,5-dimethylthiazol-2-yl]-2,5-diphenyl tetrazolium bromide (MTT). RESULTS: The rate of MTT reduction of HRPE cells decreased by either paraquat or hydrogen peroxide treatment. BSO as a inhibitor of glutathione biosynthesis potentiated paraquat- or hydrogen peroxideinduced HRPE cells injury. On the other hand GSH or OTC reduced the rate of decrement of MTT reduction in HRPE cells by paraquat and hydrogen peroxide. CONCLUSIONS: Glutathione seemed to play some role in prevention of ROS-induced HRPE cells injury and OTC may be used as an agents for prevention of free radical induced HRPE cell injury.
Cell Survival
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Epithelial Cells*
;
Glutathione*
;
Hand
;
Humans*
;
Hydrogen
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Hydrogen Peroxide
;
Oxidative Stress
;
Oxygen*
;
Paraquat
;
Retinaldehyde*
3.Comparison of Ultrasonographic and Arthro-sonographic Findings in Chronic Anterior Talofibula Ligament Injury.
Ji Woong PARK ; Chul KIM ; Hee Seung NAM ; Yong Bum PARK
The Korean Journal of Sports Medicine 2010;28(2):103-111
The purpose of this study was to investigate the arthro-sonographic appearance of the chronic anterior talofibular ligament (ATFL) injury. Twenty-nine patient, who were identified to have partial or complete ATFL tears by conventional ultrasonography were included. Intraarticular injection of 5 mL of fluid (2.5 cc lidocaine+2.5 saline) was performed under ultrasound-guidance, which was followed by arthrosonography. Among 23 patients with partial tear which was detected by the conventional ultrasonography, 11 patients were identified to have complete tear by the arthrosonography. Among 6 patients with complete tear was detected by conventional ultrasonography, all of them identified to have complete tear by the arthrosonography. Arthrosonography is helpful in evaluation the configuration of ATFL complete tear and detecting complete tear by making them appear larger and apparent after instillation of fluid.
Humans
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Injections, Intra-Articular
;
Ligaments
4.Compressive Neuropathy of the Deep Motor Branch of the Ulnar Nerve in Amateur Cyclist
Jae Jun NAM ; In Cheul CHOI ; Ji Hun PARK ; Jong Woong PARK
The Korean Journal of Sports Medicine 2020;38(4):234-237
A 36-year-old female amateur cyclist developed mononeuropathy of the deep branch of the ulnar nerve due to nerve compression adjacent to the ulnar tunnel (type II Guyon’s canal syndrome) caused by prolonged bicycle riding.The patient’s signs and symptoms persisted even after refraining from cycling for 4 weeks; thus, she underwent decompression of the deep branch of the ulnar nerve in the palm and wrist. Three months postoperation, she recovered nearly full power and function of her left hand.
5.A Case of Verrucous Carcinoma Treated by 5% Imiquimod Cream.
Ji Woong KIM ; Jae Eun CHOI ; Hyo Hyun AHN ; Young Chul KYE ; Soo Nam KIM
Korean Journal of Dermatology 2008;46(6):851-854
Verrucous carcinoma is a slow-growing, well-differentiated, low grade squamous cell carcinoma with little tendency to metastasize. The best treatment for verrucous carcinoma is excision, and Mohs microsurgery may also be a helpful technique. But some people can not undergo surgical excision because of poor general condition of the site and the size of the tumor. Herein, we report a case of verrucous carcinoma treated by 5% imiquimod cream. A 71-year-old male patient presented with a large hyperkeratotic verrucous plaque on the Rt. buttock. Diagnosis of verrucous carcinoma was based on typical clinical and histologic features. Surgical excision could not be performed due to the size of the tumor. Treatment with 5% imiquimod cream, a topical immune response modifier, applied every other day for 16 weeks, led to tumor regression. Four weeks after the end of treatment, the lesion was evaluated by punch biopsy. The histology just showed scar tissue change. This case demonstrates that the imiquimod cream might be an alternative treatment option for verrucous carcinoma.
Aged
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Aminoquinolines
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Biopsy
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Buttocks
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Carcinoma, Squamous Cell
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Carcinoma, Verrucous
;
Cicatrix
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Humans
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Male
;
Microsurgery
6.Central Neck Recurrence Patterns and Morbidity Following Reoperation for Recurrent Papillary Thyroid Carcinoma.
Ji Sup YUN ; Yong Sang LEE ; Jong Joo JUNG ; Kee Hyun NAM ; Woong Youn CHUNG ; Cheong Soo PARK
Journal of the Korean Surgical Society 2008;74(1):42-47
PURPOSE: Central compartment reoperation for recurrent thyroid carcinoma is challenging to surgeons due to the scar tissues and adhesions and the distortion of the normal anatomic relationships. This study was carried out to investigate the central neck recurrence patterns and the surgical morbidity of reoperation for patients with papillary thyroid carcinoma. METHODS: The study population was comprised 68 papillary thyroid carcinoma patients (15 males and 53 females, median age: 50.8 years [range: 12~78 years]) who underwent reoperation for recurrent tumors in the central compartment of the neck between January 1999 and June 2007. All of the patients had undergone prior total thyroidectomy. RESULTS: Of the 68 patients, 21 recurrences occurred in the proper thyroid tissue of the thyroid bed, 43 in the central neck nodes and 4 in a combination of the central nodes and proper thyroid tissue. The common recurrent site from the proper thyroid tissue were at the berry ligaments and at the level of the upper one-third of the recurrent laryngeal nerves, while the common nodal recurrence sites were the lower-most portion of the paratracheal nodes and the right paraesophageal nodes (the lymph nodes posterior to the right recurrent laryngeal nerve). Eleven cases of transient hypocalcemia (17.5%, 11/63) and 3 cases of permanent hypocalcemia (4.3%, 3/63) were noted after reoperation. Recurrent laryngeal nerve injury occurred in 5 patients (8.1%, 5/62), but three of them were intentionally resected with the recurrent cancers. CONCLUSION: Reoperation for central neck recurrence of papillary thyroid carcinoma is associated with a higher complication rate. Meticulous surgical dissection of the central compartment based on the recurrent patterns is important to reduce injury to the recurrent laryngeal nerves and parathyroid glands.
Carcinoma
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Cicatrix
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Female
;
Fruit
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Humans
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Hypocalcemia
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Intention
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Ligaments
;
Lymph Nodes
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Male
;
Neck
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Recurrence
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Recurrent Laryngeal Nerve
;
Recurrent Laryngeal Nerve Injuries
;
Reoperation
;
Thyroid Gland
;
Thyroid Neoplasms
7.Predictive Factor for Surgical Indication in Postoperative Adhesive Small Bowel Obstruction.
Ji Woong KANG ; Jung Kwang NAM ; Byung Seok KIM ; Duk Jin MOON
Journal of the Korean Society of Coloproctology 2010;26(3):186-189
PURPOSE: There is a long-standing debate about whether postoperative adhesive small bowel obstruction (SBO) is best managed operatively or nonoperatively. The aim of this study is to define predictive factors for surgical indication in the treatment of an adhesive SBO. METHODS: Medical records and laboratory data of 211 patients who had a SBO after a laparotomy from January 2000 to December 2008 were reviewed retrospectively. The patients were divided into two groups according to the modality of SBO treatment: operatively and nonoperatively. The laboratory data and clinical parameters were compared between the two groups and a statistical analysis was performed. RESULTS: A Mann-Whitney analysis revealed previous SBO history, amylase, erythrocyte sedimentation rate (ESR), creatine phosphokinase, drainage amount via a Levin tube to be significant factors associated with surgical management. A multivariate analysis showed drainage amount via a Levin tube of 500 mL/day or greater (P=0.007), amylase of 90 IU/L or greater (P=0.04), and ESR of 11 mm/hr or greater (P=0.03) to be independent predictive factors for surgery. CONCLUSION: Surgical management should be considered among adhesive SBO patients with elevated amylase (> or =90 IU/L) and ESR (> or =11 mm/hr) and with large drainage amount through the Levin tube (> or =500 mL/day).
Adhesives
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Amylases
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Blood Sedimentation
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Creatine Kinase
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Drainage
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Humans
;
Laparotomy
;
Medical Records
;
Multivariate Analysis
;
Retrospective Studies
8.Papillary Thyroid Microcarcinoma: Clinicopathologic Characteristics and Treatment Strategy.
Jandee LEE ; Ji Sup YUN ; Kee Hyun NAM ; Woong Youn CHUNG ; Euy Young SOH ; Cheong Soo PARK
Journal of the Korean Surgical Society 2007;72(4):276-282
PURPOSE: The clinical importance of papillary microcarcinoma (PTMC) is debatable. Because PTMC is being diagnosed with increasing frequency, it is important to describe the clinical and histological characteristics that confer aggressive behavior to this cancer. This study was carried out to evaluate the clinical and histological characteristics of PTMC and to determine an appropriate treatment strategy for such cases. METHODS: From Jan. 2000 to Dec. 2005, 1,255 patients with small papillary carcinoma, which measured less than 2.0 cm in its greater dimension, underwent total thyroidectomy at our institution. Among these patients, 633 (50.4%) had a thyorid carcinoma less than or equal to 1 cm in diameter (Group A). The clinicopathologic features and treatment outcome of these patients were evaluated and compared with the remaining 622 cases (49.6%) (Group B). RESULTS: For the patients with PTMC (Group A), there were 70 men and 563 women with a median age of 44 years (range; 12~86). During a mean follow-up of 32.5+/-18.2 months, 6 patients (0.9%) developed locoregional recurrences and 3 patients (0.5%) showed distant metastases. There was no disease-related mortality in both groups. The disease of group B was more likely to show extracapsular invasion (P < 0.001), invasion to adjacent structures (P < 0.001), and lateral neck node metastasis (P < 0.001) than that of group A. However, there were no significant differences in multifocality (P=0.189), bilaterality (P=0.203), the locoregional recurrence rate (P=0.065) and the distant meta-stasis rate (P=0.325) between the two groups. On multivariate analysis, locoregional recurrent disease was associated with central lymph node metastases (P=0.033) and lateral neck node metastases (P=0.022). CONCLUSION: Despite PTMC having less aggressive clinicopathologic parameters as compared with clinical cancer (>1 cm), some PTMCs show aggressive clinical behavior and locoregional recurrence. The treatment of PTMC should be individualized based on its tumor risk profiles and the clinical presentations. Moreover, performing close follow-up is essential, especially for those patients who present with cervicolateral lymph node metastases.
Carcinoma, Papillary
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Female
;
Follow-Up Studies
;
Humans
;
Lymph Nodes
;
Male
;
Mortality
;
Multivariate Analysis
;
Neck
;
Neoplasm Metastasis
;
Recurrence
;
Thyroid Gland*
;
Thyroidectomy
;
Treatment Outcome
9.Effect of an Education Program on Violence in the Emergency Department.
Woong Ji CHOI ; Soo Hyeong CHO ; Nam Soo CHO ; Gwang Seok KIM
Journal of the Korean Society of Emergency Medicine 2005;16(2):221-228
PURPOSE: In response to a growing threat of violence in hospitals, we examined a specific educational effort to reduce emergency department (ED) violence in the shortterm. METHODS: Cross-sectional prospective surveys were conducted at Chosun University Hospital Emergency Center during a baseline period from May 26 to Jul. 9. 2003, and during a post-education period from Aug. 7 to Sep. 20. 2003. Questions addressed the degree of violence, the reason for the violence, demographic information about the perpetrator of the violence, the outbreak time of the violence and the response of emergency personnel. RESULTS: After an education program on violence, the rate of violent events in the ED was decreased by 23.5%. A notable change was that ED workers handled the violence more positively during the post-education period by isolating or restraining the aggressor. Almost all of the violence was caused by males, particularly those in their third or fourth decade. The violence occurred mostly on the night shift. Of the violence, 52.4% was caused by the patient while 34.8% was caused by the patient's guardian. The leading causes of violence were drunkenness and delays in laboratory tests and treatment. Verbal abuse and threats were the most concern forms of violence. CONCLUSION: Violent events are frequent in the ED. Education programs may reduce the number of events at least temporarily.
Alcoholic Intoxication
;
Education*
;
Emergencies*
;
Emergency Service, Hospital*
;
Humans
;
Male
;
Prospective Studies
;
Violence*
10.The Reliability and Validity of the Negative Acts Questionnaire-Revised (NAQ-R) for Nurses for the Assessment of Workplace Bullying.
Woong NAM ; Ji Won KIM ; Yong Kyu KIM ; Jung Wan KOO ; Chung Yill PARK
Korean Journal of Occupational and Environmental Medicine 2010;22(2):129-139
OBJECTIVE: This study was conducted to assess the reliability, the validity, the psychological characteristics, and the internal structure of the Negative Acts Questionnaire-Revised (NAQ-R) for nurses for the assessment of the workplace bullying. METHODS: A total of 190 female nurses who worked in a university hospital and who had participated in an annual health surveillance program were recruited into the study. A structured questionnaire was used to evaluate each participant's workplace bullying, job stress, and psychosocial wellbeing. Workplace bullying was assessed using the negative acts questionnaire-revised (NAQ-R), job stress was assessed using the Korean Occupational Stress Scale-Short Form (KOSS-SF) and psychosocial wellbeing was assessed using the Psychosocial Wellbeing Index-Short Form (PWI-SF). Resulting answers from the questionnaires were analyzed by chi-square, ANOVA, correlation analysis, and factor analysis. RESULTS: Victims of workplace bullying of nurses in a hospital is 37(19%) based on operational bullying criteria. The Cronbach's alpha for the negative acts questionnaire-revised (NAQ-R) is 0.9260. By exploratory factor analysis, we conclude that 3 factor are most relevant. Criterion validity was satisfied with that a negative acts questionnaire-Revised (NAQ-R) resulting in a statistically significant and positive relationship with PWI-SF , construct validity was satisfied with that NAQ-R has statistically significant and high positive correlation with the occupational climate of the KOSS results. CONCLUSIONS: The negative acts questionnaire-revised (NAQ-R) is a reliable and valid tool for the assessment of workplace bullying in the hospital nurse. By using this tool, we can imply the prevalence of and the condition of workplace bullying among the nurse.
Bullying
;
Climate
;
Female
;
Humans
;
Prevalence
;
Questionnaires
;
Reproducibility of Results