1.The Surgical Results of Medial Rectus Muscle Resection of Dominant Eye and Lateral Rectus Muscle Recession of Non-dominant Eye in Intermittent Exotropia.
Jae Deok PARK ; Jae Hoon HYUN ; Young Mo KOO ; In Gun WON
Journal of the Korean Ophthalmological Society 1999;40(8):2285-2292
Intermittent Exotropia has been treated by various surgical methods such as bilateral medial rectus resection, lateral rectus recession and medial rectus resection of deviating eye, and bilateral lateral rectus recession. However, the outcomes of such operations are unsatisfactory because of high incidence of postoperative undercorrection and overcorrection. Authors have performed a surgical method which is the medial rectus muscle resection of dominant eye and lateral rectus muscle recession of non-dominant eye in 68 patients. Authors considered the outcome successful if patients achieve deviation between 10 PD of exophoria and 5 PD of esophoria, good stereopsis, no suppression and no manifest deviation. The success rate was 83.8% (57/68) and there was no overcorrection over 6 months follow-up. As postoperative complications, 5 cases of temporary turning of face and 3 cases of asymmetric palpebral fissure were seen. Therefore, these results suggest that medial rectus resection of dominant eye and lateral rectus recession of non-dominant eye in intermittent exotropia may be an alternative surgical method for intermittent exotropia. However, further studies are necessary to determine the exact surgical amounts and mechanism of this surgical method.
Depth Perception
;
Esotropia
;
Exotropia*
;
Follow-Up Studies
;
Humans
;
Incidence
;
Postoperative Complications
2.A case of Incontinentia Pigmenti.
Hyun Mo KOO ; Chun Dong KIM ; Byung Ryul CHOI ; Han Gu MOON ; Yong PARK ; Jin Gon JUN ; Jeong Ok HAH
Journal of the Korean Pediatric Society 1985;28(4):396-399
No abstract available.
Incontinentia Pigmenti*
4.Mitotic Activity of Tympanic Membrane and External Auditory Canal Skin in Normal Mongolian Gerbil.
Kee Hyun PARK ; Young Myoung CHUN ; Seong Mo KOO ; Seong Kyun KIM
Korean Journal of Otolaryngology - Head and Neck Surgery 1997;40(7):976-983
BACKGROUND: Understanding the differentiation and migrating character of the tympanic membrane, external auditory canal as well as cholesteatoma pathogenesis needs knowledge about epithelial generation center. OBJECTIVE: We investigated the distribution of the epithelial generation center in the tympanic membrane and external auditory canal using 5-bromo-2-deoxyuridine(BrdU) immunohistochemistry. MATERIALS AND METHODS: BrdU was injected into peritoneum of 10 Mongolian gerbils and gerbil's temporal bones were obtained and serial section was done. Anti-BrdU antibody immunohistochemical stain was done. RESULTS: The labeling index was highest at posterosuperior quadrant of pars tensa, higher at malleus handle attached area and annulus region. On pars flaccida, labeling index was high at entire area. The labeling index of deep meatal skin was higher than that of lateral meatal skin, especially near annulus area. According to results, epithelial generation centers are thought to be on pars flaccida, posterosuperior quadrant of pars tensa, malleus handle attached area and annulus region. CONCLUSION: These findings are similar to those of human tympanic membrane and external auditory canal, and gerbils can be used as a animal model for study of normal human tymapnic membrane, external auditory canal and cholesteatomas.
Bromodeoxyuridine
;
Cholesteatoma
;
Ear Canal*
;
Gerbillinae*
;
Humans
;
Immunohistochemistry
;
Malleus
;
Membranes
;
Models, Animal
;
Peritoneum
;
Skin*
;
Temporal Bone
;
Tympanic Membrane*
5.Comparison of Bleeding Tendency Between Selective Serotonin Reuptake Inhibitors and Serotonin Norepinephrine Reuptake Inhibitors Using Platelet Function Analyzer
Seung Mo KOO ; Hyun KIM ; Kang Joon LEE
Korean Journal of Psychosomatic Medicine 2021;29(2):153-161
Objectives:
:The purpose of this study is to compare bleeding tendency of selective serotonin reuptake inhibitor (SSRI) and serotonin norepinephrine reuptake inhibitors (SNRI) using platelet function analyzer (PFA-100) in patients with major depressive disorder.
Methods:
:This study is a prospective open-label study conducted by a single institution. A total of 41 subjects diagnosed with major depressive disorder under the DSM-5 diagnostic criteria participated in this study.The subjects were classified into SSRI (escitalopram) groups and SNRI (duloxetine) groups, respectively, according to random assignments. The closure time (CT) was measured using a platelet function analyzer (PFA-100) before each antidepressant was administered and after 6 weeks. Paired-sample t-test was conducted within each group to determine whether a specific antidepressant had an effect on closure time. In order to confirm the rela-tive change in platelet function between the two groups, an independent sample t-test was conducted to compare and analyze the change in closure time between the two groups.
Results:
:There was no significant changes in closure time (CEPI-CT, CADP-CT) before and 6 weeks after drug administration in the SSRI and SNRI groups, and there was no difference in the amount of changes in closure time between the two groups.
Conclusions
:Our results showed no difference in bleeding tendency between SSRI and SNRI. This study suggests that further large-scale studies on bleeding tendency for various antidepressants are needed in the future.
6.A Study of Liver Span in Normal Newborn Infant.
Byung Ryul CHOI ; Chun Dong KIM ; Hyun Mo KOO ; Yong Hoon PARK ; Han Ku MOON ; Jin Gon JUN ; Jeong Ok HAH
Journal of the Korean Pediatric Society 1985;28(6):534-537
No abstract available.
Humans
;
Infant, Newborn*
;
Liver*
7.A Case of Alveolar Rhabdomyosarcoma Originating from the Chest Wall.
Chun Dong KIM ; Jeong Ok HAH ; Hyun Mo KOO ; Byung Ryul CHOI ; Han Ku MOON ; Yong Hoon PARK ; Jin Gon JUN ; Tae Sook LEE
Yeungnam University Journal of Medicine 1984;1(1):207-212
Rhabdomyosarcoma originating from the chest wall is a rare malignant tumor in children and was considered to be guarded in prognosis previously. However, recent advances in multidisciplinary treatment of rhabdomyosarcoma in children have improved the disease free survival rate. Authors report a case of alveolar rhabdomyosarcoma, stage III, originating from the chest wall who is surviving free of disease for 15 months with aggressive chemotherapy and radiotherapy.
Child
;
Disease-Free Survival
;
Drug Therapy
;
Humans
;
Prognosis
;
Radiotherapy
;
Rhabdomyosarcoma
;
Rhabdomyosarcoma, Alveolar*
;
Thoracic Wall*
;
Thorax*
8.Detection and Localization of Islet Cell Tumor of the Pancreas: Usefulness of the Arterial Dominant Phase Images of Spiral CT.
Sam Soo KIM ; Joon Koo HAN ; Byung Ihn CHOI ; Myoung Jin CHUNG ; Sang Hyun LEE ; Kyung Mo YEON
Journal of the Korean Radiological Society 1996;35(4):565-569
PURPOSE: To evaluate the usefulness of the arterial dominant phase images of spiral CT in the detection and localization of pancreatic islet cell tumor. MATERIALS AND METHODS: Six patients with pathologically proven isletcell tumors of the pancreas were studied with two-phase spiral CT. Images of the arterial dominant phase and delayed phase were obtained at 30 and 180 seconds after the initiation of injection of 100 ml of contrast materialat a rate of 3ml/sec. The parameters of scanning were 3-mm thickness, table speed of 4mm/sec, and reconstruction at 2-mm intervals. Images were prospectively analyzed and the operative findings were used as the reference standard for tumor detection and localization. RESULTS: On arterial dominant phase images, lesions were definitely depicted in five patients(83%) and were suspicious in one (17%). In the delayed phase, only two tumors(33%) were demonstrated. CONCLUSION: The arterial dominant phase of spiral CT is useful in the preoperative detection and localization of islet cell tumor of the pancreas.
Adenoma, Islet Cell*
;
Humans
;
Islets of Langerhans*
;
Pancreas*
;
Prospective Studies
;
Tomography, Spiral Computed*
9.Similarity Analysis of Korean Medical Literature and Its Association with Efforts to Improve Research and Publication Ethics.
Soyoung PARK ; Seung Ho YANG ; Eugene JUNG ; Yeon Mi KIM ; Hyun Sung BAEK ; Young Mo KOO
Journal of Korean Medical Science 2017;32(6):887-892
In the present study, the frequency of research misconduct in Korean medical papers was analyzed using the similarity check software iThenticate®. All Korean papers written in English that were published in 2009 and 2014 in KoreaMed Synapse were identified. In total, 23,848 papers were extracted. 4,050 original articles of them were randomly selected for similarity analysis. The average Similarity Index of the 4,050 papers decreased over time, particularly in 2013: in 2009 and 2014, it was 10.15% and 5.62%, respectively. And 357 (8.8%) had a Similarity Index of ≥ 20%. Authors considered a Similarity Index of ≥ 20% as suspected research misconduct. It was found that iThenticate® cannot functionally process citations without double quotation marks. Papers with a Similarity Index of ≥ 20% were thus individually checked for detecting such text-matching errors to accurately identify papers with suspected research misconduct. After correcting text-matching errors, 142 (3.5% of the 4,050 papers) were suspected of research misconduct. The annual frequency of these papers decreased over time, particularly in 2013: in 2009 and 2014, it was 5.2% and 1.7%, respectively. The decrease was associated with the introduction of CrossCheck by KoreaMed and the frequent use of similarity check software. The majority (81%) had Similarity Indices between 20% and 40%. The fact suggested that low Similarity index does not necessarily mean low possibility of research misconduct. It should be noted that, although iThenticate® provides a fundamental basis for detecting research misconduct, the final judgment should be made by experts.
Duplicate Publication as Topic
;
Editorial Policies
;
Ethics*
;
Judgment
;
Periodicals as Topic
;
Plagiarism
;
Publications*
;
Scientific Misconduct
;
Synapses
10.The Effect of Corticosteroid on the Treatment of Endobronchial Tuberculosis.
Eun Kyung MO ; Ho Joong KIM ; Jung Eun CHOI ; Dong Gyn KIM ; Myung Jae PARK ; In Gyu HYUN ; Myung Koo LEE ; Ki Suck JUNG
Tuberculosis and Respiratory Diseases 1997;44(2):409-418
OBJECTIVE: Appropriate antituberculosis chemotherapy may not prevent occurrence or progression of tracheobronchial stenosis and obstruction in the patients with endobronchial tuberculosis. The effect of corticosteroid treatment combined with antituberculosis chemotherapy was inconclusive. We evaluated prospectively the effect of corticosteroid treatment. METHODS: We diagnosed endobronchial tuberculosis by bronchoscopic examination and bronchial biopsy in the patients of tuberculosis within one month of antituberculosis chemotherapy. After randomization, we prescribed isoniazid, rifampin, ethambutol, and pyrazinamide with or without prednisolone 40 mg for 4 weeks. We carried out bronchoscopy in second month and ninth month of treatment. RESULTS: Edematous endobronchial tuberculosis showed significant improvement of bronchial stenosis after corticosteroid treatment(p<0.05). Corticosteroid treatment did not have advantage of improvement of bronchial stenosis in the patients with infiltrative endobronchial tuberculosis. CONCLUSION: Corticosteroid is effective in the treatment of bronchial stenosis when endobronchial tuberculosis is edematous type, in the early period of antituberculosis chemotherapy.
Biopsy
;
Bronchoscopy
;
Constriction, Pathologic
;
Drug Therapy
;
Ethambutol
;
Humans
;
Isoniazid
;
Prednisolone
;
Prospective Studies
;
Pyrazinamide
;
Random Allocation
;
Rifampin
;
Tuberculosis*