1.Memory Functions of Temporal Lobe Epileptic Patients in the Intracarotid Amobarbital Procedure:I. Lateralizing Value.
Hong Keun KIM ; Sang Doe YI ; Ji Eun KIM ; Eun Ik SOHN
Journal of the Korean Neurological Association 1999;17(1):88-93
BACKGROUNDS: To examine the effects of seizure laterality and stimulus type on Wada memory performance in patients with temporal lobe epilepsy(TLE). METHODS: The subjects were 43 patients with medically intractable TLE (left TLE 26, Right TLE 17) who had no or rare seizures after surgery. The memory stimuli were concrete figures for some subjects and abstract figures for the other subjects. RESULTS: A clinical criterion of at least 2-points difference between left and right injections correctly classified 31(72%) patients into left and right TLE groups, with 4(9%) patients falsely classified. A discriminant function analysis(DFA) based on left and right injection scores allowed for a correct classification of 37(86%) patients into left and right TLE groups. When the memory stimuli were concrete figures, the correct classification rate was greater for right than left TLE patients. In contrast, with abstract figures, the correct classification rate was greater for left than right TLE patients. CONCLUSIONS: The Wada memory test is a valuable diagnostic aid in lateralizing temporal epileptogenic foci. Stimulus type as well as seizure lateralization is a major determinant of Wada memory asymmetries.
Amobarbital*
;
Classification
;
Epilepsy, Temporal Lobe
;
Humans
;
Memory*
;
Seizures
;
Temporal Lobe*
2.Application of Mohs Surgery to the Treatment of Basosquamous Cell Carcinoma Originating from the Auricle.
Keun Ik YI ; Soo Keun KONG ; Eui Kyung GOH ; Se Joon OH
Korean Journal of Otolaryngology - Head and Neck Surgery 2018;61(4):212-216
Complete removal is most important in treating the malignant tumor from the auricle, but the cosmetic and reconstructive plan after removal should also be considered because auricular appearance contributes enormously to the facial aesthetics. Mohs micrographic surgery (MMS), which is commonly used in dermatology, is considered as minimal marginal surgery that offers superior cure rates in the treatment of facial skin cancer. Therefore, MMS could provide a minimally invasive way to manage the malignant tumor of the auricle. This article reports that basosquamous cell carcinoma arising in the auricle was treated with wide resection combined with MMS. Conclusively, we could accomplish the surgical purpose of both completely removing the tumor and maintaining the auricular aesthetic shape by additionally introducing MMS in the treatment.
Dermatology
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Esthetics
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Mohs Surgery*
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Skin Neoplasms
3.The Significance of Neutrophil-to-Lymphocyte Ratio and Platelet-to-Lymphocyte Ratio as Markers for Prognosis in Idiopathic Sudden Sensorineural Hearing Loss.
Keun Ik YI ; Se Joon OH ; Sung Won CHOI ; Seon Lin KIM ; Soo Keun KONG ; Eui Kyung GOH
Korean Journal of Otolaryngology - Head and Neck Surgery 2018;61(7):333-340
BACKGROUND AND OBJECTIVES: The cause of idiopathic sudden sensorineural hearing loss (ISSNHL) is still unclear, but recently, chronic inflammation and thrombosis have received attention. The neutrophil-to-lymphocyte ratio (NLR) and platelet-to-lymphocyte ratio (PLR) are some of the markers that show the state of inflammation and ischemia, which are measured routinely in the complete blood cell count (CBC) test. The aim of this study were to investigate the relevance of NLR and PLR with ISSNHL. SUBJECTS AND METHOD: Enrolled in our retrospective analysis were 103 patients diagnosed with ISSNHL. Blood samples were taken from the patients and hearing assessments were performed. NLR and PLR were calculated using the CBC results. Then the patients were divided into 4 groups using Sigel's criteria according to their response to the treatment, which were again classified two groups, the “recovered” and “unrecovered” group. RESULTS: NLR, PLR, and neutrophil values of the unrecovered group were significantly higher than the recovered group (p=0.002, p=0.009, and p=0.038, respectively). On the other hand, lymphocyte values were significantly higher in the recovered group (p=0.007). After adjustment in a multivariate logistic regression analysis, NLR was associated with the recovery of ISSNHL (Odds ratio=1.290, p=0.042). In addition, NLR and PLR values were also significantly different between the groups classified by the Sigel's criteria (p=0.009 and p=0.029, respectively). CONCLUSION: PLR values may be useful in predicting hearing recovery after treatment in patients with ISSNH. It is also expected to be a potential marker for predicting the prognosis and determining further treatment options.
Biomarkers
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Blood Cell Count
;
Hand
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Hearing
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Hearing Loss, Sensorineural*
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Humans
;
Inflammation
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Ischemia
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Logistic Models
;
Lymphocytes
;
Methods
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Neutrophils
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Prognosis*
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Retrospective Studies
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Thrombosis
4.A Case of Cochlear Implantation in Neurofibromatosis Type II.
Se Joon OH ; Ji Hwan PARK ; Keun Ik YI ; Eui Kyung GOH
Korean Journal of Otolaryngology - Head and Neck Surgery 2015;58(7):509-513
Patients with neurofibromatosis type 2 (NF2) develop bilateral vestibular schwannomas that can cause binaural progressive hearing loss in most individuals. Auditory rehabilitation for bilateral profound sensorineural hearing loss in patients with NF2 poses a great therapeutic challenge. An auditory brainstem implantation may be an option after tumor excision, but its hearing results are still relatively unsatisfactory. A cochlear implantation (CI) may be another option in those cases where the cochlear nerve has been left intact after tumor excision or in those cases that have been kept stable after treating with Gamma-Knife. Here we report a case of undergoing CI after having been treated with Gamma-Knife in NF2 and showing improved open-set speech perception.
Auditory Brain Stem Implantation
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Auditory Brain Stem Implants
;
Cochlear Implantation*
;
Cochlear Implants*
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Cochlear Nerve
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Hearing
;
Hearing Loss
;
Hearing Loss, Sensorineural
;
Humans
;
Neurofibromatosis 2*
;
Neuroma, Acoustic
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Radiosurgery
;
Rehabilitation
;
Speech Perception
5.The Factors Involved in Bilateral Central Lymph Node Metastasis of Isthmus Papillary Thyroid Cancer.
Keun Ik YI ; Soo Geun WANG ; Byung Joo LEE ; In Ju KIM ; Bo Hyun KIM ; Sang Soo KIM ; Jin Choon LEE
Korean Journal of Otolaryngology - Head and Neck Surgery 2017;60(3):125-134
BACKGROUND AND OBJECTIVES: The aims of this study were to evaluate the rate and risk factors involved in bilateral central lymph node metastasis in patients with papillary thyroid cancer (PTC) found in the isthmus and compared them to tumors located in other thyroid regions, using those findings to establish a surgical strategy for treating these tumors. SUBJECTS AND METHOD: We compared the clinical and pathological data of 48 patients with isthmic PTC and 141 patients with PTC found in other thyroid regions, all of whom underwent total thyroidectomy and bilateral central neck dissection. RESULTS: The rates of bilateral central lymph node metastasis were higher in the isthmus group than in the non-isthmus group (29.2% vs. 9.9%; p=0.001). On multivariate analysis, the isthmic location of the tumor was an independent risk factor for bilateral central lymph node metastasis (OR=3.458; p=0.005). But the positional relationship between the tracheal midline and the nodule was not clear in lymph node metastasis in the isthmus group. CONCLUSION: Bilateral central neck dissection should be considered for isthmic PTC regardless of the relation between nodule and tracheal midline because of the high rate of bilateral central lymph node metastasis.
Humans
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Lymph Nodes*
;
Lymphatic Metastasis
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Methods
;
Multivariate Analysis
;
Neck Dissection
;
Neoplasm Metastasis*
;
Risk Factors
;
Thyroid Gland*
;
Thyroid Neoplasms*
;
Thyroidectomy
6.The Feasibility Test of Korean Medication Algorithm for the Treatment with Schizophrenic Patients(II): The Problem for Applying Algorithm to the Real Clinical Situation and Opinion of Revision.
Yong Min AHN ; Jun Soo KWON ; Won Myong BAHK ; Chul Eung KIM ; Jong Ik PARK ; Sang Yeol LEE ; Jung Seo YI ; Chang Hwa LEE ; Hong Seok JANG ; Duk In JON ; Sang Keun CHUNG ; In Won CHUNG ; Hyun Sang CHO ; Yeon Ho JOO ; Yong Seoung CHOI ; Yong Sik KIM ; Hong Shick LEE
Korean Journal of Psychopharmacology 2006;17(1):35-49
OBJECTIVES: The Korean College of Neuropsychopharmacology and the Korean Academy of Schizophrenia developed the Korean medication algorithm project for schizophrenia (KMAP) to aid clinical decisions. The purpose of this study was to investigate problems and revision of Korean Medication Algorithm for Schizophrenia after feasibility test. METHODS: A total of 108 schizophrenia patients were enrolled at 19 centers and treated according to the algorithm. Prescribing investigators were able to change the recommended treatment strategies of the algorithm if necessary. All subjects were assessed over a 4-month period. Appropriateness of choice, dosage, duration and switch of antipsychotics and definition of treatment response were examined. RESULTS: Compliance of 1(st) choice antipsychotics in KMAP was favorable. Atypical antipsychotics which is a 1(st) stage drug selected first was above 84%, especially in case of no previous medical history was nearly all. In case that shift of stage was needed, there is a trend that combination treatment stage (6(th) stage) and clozapine treatment stage (5(th) stage) were preferred to rather than 3(rd) stage and 4(th) stage (typical antipsychotics and atypical antipsychotics treatment stage). The rates of switching antipsychotics at the time points other than CDP (critical decision points) was low and the reason was almost the side effects. So the compliance of CDPs in KMAP was good in case of insufficiency of treatment response. Also the reasons why many investigators continued using current antipsychotics without switching despite insufficiency of treatment response were definition of treatment response, discrepancy between brief symptom rating scale for negative symptom and decision of clinicians. In addition, compliance of co-existence symptoms and side effect of medication in KMAP was favorable. CONCLUSION: It is some difference from clinical practice such as stage of antipsychotics, definition of treatment response and usefulness of brief symptom rating scale for negative symptom. But the majority apart from points of preceding paragraph is feasible in clinical practice. These results are essential to revise the next version of KMAP.
Antipsychotic Agents
;
Clozapine
;
Compliance
;
Cytidine Diphosphate
;
Humans
;
Research Personnel
;
Schizophrenia
7.Application of 3D Surface Scanners in Forensic Science and Medicine ( I ): Digital Storage of Human Skeletons and Development of Appraisal Methods for Incident Scenes.
Nak Eun CHUNG ; Hyung Nam KOO ; Hyun Moo KANG ; Sang Seob LEE ; Hye Jin PARK ; Hyung Joong KIM ; Kyung Rak LEE ; Ik Jo CHUNG ; Dae Yeol KIM ; Dal Won KIM ; Sang Beom LIM ; Saebomi LEE ; Han Soo HAN ; Jung LEE ; Jun Suk KIM ; Ki Woong MOON ; Byong Hyun KIM ; Kyun Woo CHO ; Jin Pyeo KIM ; Yeo Soo KIM ; Sung Ho KIM ; In Soo SEO ; Dae Kyun PARK ; Jae Kwang CHUNG ; Yi Suk KIM ; Seong Kyu CHOI ; U Young LEE ; Hoon LEE ; Chae Keun KIM ; In Soo LEE ; Hoon KANG ; Won Seob KIM ; Dong Kyu KIM ; Dong Soo KIM ; Hyeong Jin CHOI ; Dong Il PARK ; Hong Soon CHOI ; Si Ro KIM ; Yong Seok HEO
Korean Journal of Legal Medicine 2012;36(1):85-96
The aim of this project was to use 3D scanning data collected at incident scenes and various evidence to 1) develop surveying methods based on 3D data consisting of overall and detailed scene evidence, captured by long-range and micros-canner, which can be shared by personnel working in different fields such as forensic medicine, video analysis, physical analysis, traffic engineering, and fire investigation; 2) create digital storage for human skeletons and set the foundation for virtual anthropology; and 3) improve the credibility of 3D evidence by virtual remodeling and simulation of incident scenes and evidence to provide a basis for advanced and high-tech scientific investigation. Two complete skeletons of male and female were scanned using 3D micro-scanner. Each bone was successfully reproduced and assembled in virtual space. In addition, recreating evidence scheduled for invasive examination by creating RP (rapid prototype) was possible. These outcomes could play an important role in setting up the new field of virtual anthropology. Case-specific surveying methods were developed through analysis of 3D scanning data collected by long-range surface scanners at the scenes of vehicular accidents, falls, shootings, and violent crimes. A technique and recording method was also developed for detecting forged seals by micro-scanning the pressure exerted on the seal. Appraisal methods developed in this project could be utilized to secure 3D data of human skeletal remains and incident scenes, create a standard for application, and increase objectivity, reproducibility, and accuracy of scanning methods. We plan to develop case-specific 3D data analysis techniques to improve the credibility of analysis at the NFS and to establish a 3D data collection and analysis team.
Crime
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Data Collection
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Female
;
Fires
;
Forensic Medicine
;
Forensic Sciences
;
Humans
;
Male
;
Skeleton
;
Statistics as Topic