1.A case report of successful replantation of the amputated ear.
Dong Chul KIM ; Bae Kun PARK ; Sung Jin HWANG ; Hyun Tack LEE ; Chung Hun KIM
Journal of the Korean Society of Plastic and Reconstructive Surgeons 1992;19(3):428-434
No abstract available.
Ear*
;
Replantation*
2.Occult Intraperitoneal Bladder Injury after a Tension-Free Vaginal Tape Procedure.
Byung Soo CHUNG ; Tack LEE ; Jun Sig KIM ; Hun Jae LEE
Yonsei Medical Journal 2005;46(6):874-876
Occult bladder injury may sometimes go unrecognized during tension-free vaginal tape (TVT) procedures. We report a case of occult intraperitoneal bladder injury that occurred during a TVT procedure. There was no sign of bladder perforation on the initial cystoscopy, which was performed just after the insertion of the trocar. Signs of general peritonitis appeared after the patient started to void the next day. A postoperative cystogram and cystoscopy showed an intraperitoneal bladder injury and a pinhead-sized ulcerative lesion in the right lateral wall of the bladder. We suspect that at the time of initial cystoscopy, the trocar passed through the submucosal area without violating the bladder mucosa. The occult bladder injury may have been caused after the initial cystoscopy by advancing the rough edge of the prolene tape during the extraction of the trocar. This report is the first description of such an occult bladder injury during a TVT procedure.
Vagina/surgery
;
Urologic Surgical Procedures/adverse effects
;
Urinary Incontinence, Stress/*surgery
;
Urinary Bladder/*injuries/radiography
;
*Postoperative Complications
;
Peritonitis/diagnosis/etiology
;
Humans
;
Female
;
Cystoscopy
;
Adult
3.Effect of Glycyrrhizin on Rainbow Trout Oncorhynchus mykiss Leukocyte Responses.
Kang Ju KIM ; Seon Il JANG ; Matthews J MARSDEN ; Christopher J SECOMBES ; Min Sun CHOI ; Young Gill KIM ; Hun Tack CHUNG
Journal of the Korean Society for Microbiology 1998;33(3):263-271
Treatment of rainbow trout macrophages with glycyrrhizin (GL), an aqueous extract of licorice (Glycyrrhiza glabra), enhanced their respiratory burst activity. Maximal effects were seen using concentrations of 10-100 ug/ml. GL also modulated trout lymphocytes, increasing proliferation responses to the mitogen phytohemagglutinin two-fold over a range of GL concentrations. In addition, GL elicited the release of a macrophage activating factor (MAF) kom head kidney leukocytes, as assessed by the ability of generated supernatants to increase respiratory burst activity of target macrophages. MAF activity was most apparent using 100 ug/ml GL to induce MAF release and a 48 h incubation period with the target macrophages. Finally, GL was shown to enhance the release oF MAF in response to the mitogen concanavalin A. The results suggest that GL might modulate the innate defences in fish.
Concanavalin A
;
Glycyrrhiza
;
Glycyrrhizic Acid*
;
Head Kidney
;
Leukocytes*
;
Lymphocytes
;
Macrophages
;
Oncorhynchus mykiss*
;
Oncorhynchus*
;
Respiratory Burst
;
Trout
4.Total en bloc Spondylectomy for Solitary Metastatic Spinal Tumor.
Ki Tack KIM ; Chung Soo HAN ; Kyung Soo SUK ; Young Ho LEE ; Sang Hun LEE
Journal of Korean Society of Spine Surgery 2003;10(4):303-310
STUDY DESIGN: To analyze the clinical and radiological outcomes retrospectively. PURPOSE: To evaluate the efficacy of a total en bloc spondylectomy in solitary metastatic spinal tumors. SUMMERY OF LITERATURE REVIEW: In a conventional operation of a spinal metastatic tumor it is difficult to perform a wide excision, and several reports have suggested a total en bloc spondylectomy for wide or marginal resections. MATERIALS AND METHODS: Ten patients, with solitary spinal metastasis, were underwent a total en bloc spondylectomy, with a mean follow-up of 15 months. The locations of the tumors were the thoracic spine and lumbar spine in 4 and 6 cases, respectively. The clinical and radiological outcomes were assessed using the McAfee pain scale, Frankel neurologic grading, radiological extent of the lesion and local recurrence. Metastatic spinal tumors were classified by the system of Tomita. A pathological study of the resected vertebra was performed to evaluate the surgical margin. RESULTS: The preoperative back pain was grades IV, III, II and 0 in 4, 3, 2 and 1 case, respectively. The postoperative back pain was grades III, I and 0 in 3, 1 and 6 cases by the McAfee pain scale, respectively. The neurologic deficit was improved completely in all cases. There were 3 and 7 cases of types 4 and 5 by the Tomita's classification, respectively. The pathological results were wide margin and marginal margin in 4 and 6 cases, respectively. There were no local recurrences at the time of the last follow-up. CONCLUSION: All patients maintained good clinical and radiological results. A total en bloc spondylectomy was a useful treatment option for solitary metastatic tumors.
Back Pain
;
Classification
;
Follow-Up Studies
;
Humans
;
Neoplasm Metastasis
;
Neurologic Manifestations
;
Recurrence
;
Retrospective Studies
;
Spine
5.Outcome of Patients Undergoing Kasai Procedure for Biliary Atresia: a Study of Those Surviving More Than 10 Years with Their Native Livers.
Byung Hun YIM ; Young Tack SONG ; Jae Hee CHUNG
Journal of the Korean Association of Pediatric Surgeons 2008;14(2):125-133
To evaluate the long-term prognosis of biliary atresia after Kasai operation, a total of 14 patients (of the 41 patients operated upon from 1982 to 1997), who had been followed up for more than 10 years, were included in this retrospective study. Eleven out of 14 patients survived with their native livers, and their data analyzed for age at operation, clearing time of jaundice, histological outcome, postoperative complications, effectiveness after the application of an intussusception anti-reflex valve, and quality of life. Average age at surgery was 62.8 days. Serum bilirubin was normalized within three months in all patients. Six among the eleven long-term survivors had ascending cholangitis as one of the postoperative complications. The application of an intussusception anti-reflux valve did not show any statistical significance in long-term survival. Most of long-term survivors appeared to enjoy good quality of life. Kasai operation might not be the definitive treatment for biliary atresia; however, Kasai operation made it possible to achieve long-term survival for patients with biliary atresia when the patients were detected and treated as early as possible.
Biliary Atresia
;
Bilirubin
;
Cholangitis
;
Humans
;
Intussusception
;
Jaundice
;
Liver
;
Postoperative Complications
;
Prognosis
;
Quality of Life
;
Retrospective Studies
;
Survivors
6.Accuracy of Methods for Urinary Detection in Women with Stress Urinary Incontinence.
Hae Do JUNG ; Hun Jae LEE ; Yeun Goo CHUNG ; Do Hwan SEONG ; Sang Min YOON ; Tack LEE
Korean Journal of Urology 2010;51(8):537-543
PURPOSE: We assessed the accuracy of urinary detection by visualization compared with a method using the urethral channel of a transurethral, three-channel urodynamic catheter. MATERIALS AND METHODS: This was a case series of 52 patients presenting with stress urinary incontinence over 2 years. Patients underwent video-urodynamic studies in both the supine and the erect positions by use of two techniques for measuring leak point pressure (LPP) by one examiner. LPP was determined as the intravesical pressure simultaneous to the starting point of urethral pressure changes through the urethral channel of a urodynamic catheter (LPP-ure) and then by visualization (LPP-vis) during different events. We also measured the time related to the provocations and the time to mark the leakage on the urodynamic machine by the examiner. RESULTS: The LPP-ure values (cough supine: 42.1+/-18.7, cough erect: 42.1+/-21.8, Valsalva supine: 42.2+/-23.3, Valsalva erect: 41.0+/-22.6 cmH2O) were significantly lower than the LPP-vis values (89.9+/-29.4, 97.4+/-30.4, 70.6+/-25.2, and 74.4+/-32.6 cmH2O, respectively, all p<0.001). Whereas the actual leakages happened during the pressure increases, urodynamic recording by visualization was done after those increases had finished. CONCLUSIONS: The use of visualization as a urinary detection method entails potential errors that cannot be adjusted for on that time scale. Our results emphasize the need to standardize the methodologies used for urinary leakage detection, because this measurement is closely related to the accuracy of measurement of leak point pressure.
Catheters
;
Cough
;
Female
;
Humans
;
Urinary Incontinence
;
Urodynamics
7.The Volumetric Study of the Ventricle in Korean according to Age and Gender.
Soon Cheol CHUNG ; Beob Yi LEE ; Mi Hyun CHOI ; Gye Rae TACK ; Bong soo LEE ; Jin Hun SOHN
Korean Journal of Anatomy 2005;38(3):207-213
The purpose of this study is to measure the standard volume of the ventricle of normal Koreans in their 20s and 40s and find out difference in the volume of the ventricle according to age and gender. We collected MR brain images from 118 people in their 20s (male 58, female 60)and 100 people in their 40s (male 41, female 59), so a total of 218 people.For each of sagittal, coronal and axial sections, the ventricular part was segmented using automatic and manual methods, and the volume was measured. In order to observe difference according to age and gender and to observe the interactive effect between age and gender, two-way ANOVA was carried out using age (2 levels)and gender (2 levels)as independent variables. The average volume of the ventricle of Koreans in their 20 s was 16.2 [cm3]and that of Koreans in their 40s was 23.1 [cm3].The average volume of the ventricle of male Koreans in their 20s and 40s was 21.9 [cm3]and that of female Koreans was 17.5 [cm3].The volume of the ventricle was significantly larger in Koreans in their 40s than those in their 20s, and in male Koreans than n female ones. Moreover, the increase of the volume of the ventricle with age was significantly larger in male Koreans than in female ones. According to the results of measuring the volume of the ventricle of normal Koreans in their 20s and 40s, the volume was significantly different according to age and gender, and the increase of the volume of the ventricle with age was significantly larger in men than in women.
Brain
;
Female
;
Humans
;
Magnetic Resonance Imaging
;
Male
8.A Case Of Acute Fulminating Myasthenia Gravis In Childhood.
Won Seok CHOI ; Seung Hun HAN ; Sun Mi KIM ; Jung Hyun LEE ; Dae Chul JEONG ; Jin Tack KIM ; Jin Han KANG ; Min Wook KIM ; Seung Yun CHUNG
Journal of the Korean Child Neurology Society 2002;10(1):160-165
Juvenile myasthenia gravis is an acquired autoimmune disorder of childhood, in which circulating antibodies against the acetylcholine receptor(AchR Ab) interfere with normal neuromuscular transmission. Myasthenia gravis in childhood and adolescence is rare, comprising 10% of all cases. The diagnosis is based essentially on the patient's history and clinical examination with a positive anticholinesterase(edrophonium or neostigmine) test. Electromyography (EMG) and serum AchR Ab are also important to confirm the diagnosis. We report a case of acute fulminating myasthenia gravis in a 3 year old male patient who was suspected as Guillain-Barr syndrome or brain-stem encephalitis. Diagnosis was made by neostigmine test and EMG. He recieved high dose intravenous immunoglobulin(IVIG, 400 mg/kg for 5days) and anticholinesterase(pyridostigmine) therapy. He showed gradual improvement in symptoms and signs.
Acetylcholine
;
Adolescent
;
Antibodies
;
Child, Preschool
;
Diagnosis
;
Electromyography
;
Encephalitis
;
Humans
;
Male
;
Myasthenia Gravis*
;
Neostigmine
9.The Expression of Defensin-Associated Genes May Be Correlated With Lymph Node Metastasis of Early-Stage Tongue Cancer
Doh Young LEE ; J. Hun HAH ; Woo-Jin JEONG ; Eun-Jae CHUNG ; Tack-Kyun KWON ; Soon-Hyun AHN ; Myung-Whun SUNG ; Seong Keun KWON
Clinical and Experimental Otorhinolaryngology 2022;15(4):372-379
Objectives:
. We aimed to assess the genetic differences between cases of early-stage tongue cancer that were positive or negative for lymph node metastasis.
Methods:
. In total, 35 cases of tongue cancer with RNA sequencing data were enrolled in this study. The gene expression profile of the following two groups was compared: N0 group (T stage 1 or 2 with N0 stage) and N+ group (T stage 1 or 2 with N+ stage). Using the R and limma packages in the Bioconductor program, we extracted the differentially expressed genes (DEGs). Gene ontology and pathway enrichment analysis were performed using the Database for Annotation, Visualization and Integration Discovery (DAVID) online tool. Immune cell infiltration was analyzed using the CIBERSORT online program. Immunochemical staining of the cancer tissue was evaluated and The Cancer Genome Atlas (TCGA) data were analyzed to validate the identified DEGs.
Results:
. No significant differences were found in the infiltration of 22 types of immune cells. Among a total of 51 identified DEGs, 14 genes were significantly upregulated, while 37 genes were significantly downregulated (P<0.01; fold change >2). Pathway analysis revealed significant associations with the arachidonic acid metabolism-related pathway, calcium signaling, and the muscle contraction pathway. The following DEGs were the most significantly different between the two groups: DEFB4A, SPRR2B, DEFB103B, SPRR2G, DEFB4B, and FAM25A. TCGA data showed that DEFB4A and DEFB103B were more highly expressed in the N0 group than in the N+ group, although the difference did not achieve statistical significance. Immunochemical staining of cancer tissue revealed significantly higher expression of defensin in the N0 group.
Conclusions
. Defensin (DEFB4A, DEFB103B, DEFB4B) may be a novel biomarker for early regional metastasis in T1/2 tongue cancer.
10.Poor prognostic factors in human papillomavirus-positive head and neck cancer: who might not be candidates for de-escalation treatment?
Shin Hye YOO ; Chan Young OCK ; Bhumsuk KEAM ; Sung Joon PARK ; Tae Min KIM ; Jin Ho KIM ; Yoon Kyung JEON ; Eun Jae CHUNG ; Seong Keun KWON ; J Hun HAH ; Tack Kyun KWON ; Kyeong Chun JUNG ; Dong Wan KIM ; Hong Gyun WU ; Myung Whun SUNG ; Dae Seog HEO
The Korean Journal of Internal Medicine 2019;34(6):1313-1323
BACKGROUND/AIMS:
Since patients with human papillomavirus (HPV)-associated head and neck squamous cell carcinoma (HNSCC) have favorable outcomes after treatment, treatment de-escalation for these patients is being actively investigated. However, not all HPV-positive HNSCCs are curable, and some patients have a poor prognosis. The purpose of this study was to identify poor prognostic factors in patients with HPV-positive HNSCC.
METHODS:
Patients who received a diagnosis of HNSCC and tested positive for HPV from 2000 to 2015 at a single hospital site (n = 152) were included in this retrospective analysis. HPV typing was conducted using the HPV DNA chip assay or liquid bead microarray system. Expression of p16 in the tumors was assessed by immunohistochemistry. To determine candidate factors associated with overall survival (OS), univariate and multivariable Cox regression analyses were performed.
RESULTS:
A total of 152 patients with HPV-positive HNSCC were included in this study; 82.2% were male, 43.4% were current or former smokers, and 84.2% had oropharyngeal cancer. By univariate analysis, old age, performance status ≥ 1, non-oropharyngeal location, advanced T classification (T3–4), and HPV genotype 18 were significantly associated with poor OS. By multivariable analysis, performance status ≥ 1 and non-oropharyngeal location were independently associated with shorter OS (hazard ratio [HR], 4.36, p = 0.015; HR, 11.83, p = 0.002, respectively). Furthermore, HPV genotype 18 positivity was also an independent poor prognostic factor of OS (HR, 10.87, p < 0.001).
CONCLUSIONS
Non-oropharyngeal cancer, poor performance status, and HPV genotype 18 were independent poor prognostic factors in patients with HPV-positive HNSCC. Patients with these risk factors might not be candidates for de-escalation treatment.