1.A clinical study of involutional blepharoptosis.
Sang Hoon CHA ; Yong Geun CHO ; Sung Yul AHN
Journal of the Korean Society of Plastic and Reconstructive Surgeons 1993;20(5):1023-1029
No abstract available.
Blepharoptosis*
2.Quadricepsplasty in Stiff Knee: Report of 15 cases
Soon Kak CHA ; Key Yong KIM ; Byung Hoon AHN
The Journal of the Korean Orthopaedic Association 1973;8(4):383-390
During the period of 1960 to Aug. 1973, 85 cases of stiff knee Joints are experienced in this department. 27 out of 85 cases were surgically treated by means of quadricepsplasty, and 15 cases are followed for one year on average. Besides, 5 cases had the intra-articular adhesion in addition to quadriceps contracture. 3 of them were children with resultant stiff knee after intramuscular injection of antibiotics in the thigh for several weeks. After operation, an average 69° of fIexion were increased from 20° flexion mobility preoperatively. Eventually 89° of flexion were possible actively and passively. 7 cases had extension defect, which tends to develope in the case of severe rectus tightening at operation field and required lengthening. Immediate post-operative exercise is not supposed to promote better function compared to the cases with 2 weeks of immobilization in flexed position.
Anti-Bacterial Agents
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Child
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Contracture
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Humans
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Immobilization
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Injections, Intramuscular
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Knee Joint
;
Knee
;
Thigh
4.The Computerized Indexing of Korean Journals of Radiology with Personal Computer.
Yong Hoon KIM ; Soon Joo CHA ; Gham HUR ; Jung Wook SUH ; Myung Ja JUNG
Journal of the Korean Radiological Society 1995;33(1):147-151
PURPOSE: To develop an efficient journal searching program. MATERIALS AND METHODS: A graphic user interface oriented program was developed with Microsofts Access 2.0 and its Deveolper Tool Kit under the Windows system. The program needed four floppy diskettes {4.5 megabyte) for in stallment. With the author, title, journal name, volume and pages, index words, and abstracts from JKRS and JKSMU as the input data, the utility of the program was tested for its journal searching ability in 486 DX II with 8 megabyte main memory. RESULT: The author, titlie, index word, abstract, and variable queries were carried out from 3,200 articles within 13 seconds. The test of the program satisfied and useres, radiologists, and physicians. CONCLUSION: The program is recommended for seaching of journals as it is very eary to use and userfriendly.
Abstracting and Indexing as Topic*
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Humans
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Memory
;
Microcomputers*
5.Colonic Perforation during Gastrografin Reduction of Intussusception in Children: Two Cases Reports.
Yong Hoon KIM ; Jung Sook KIM ; Soon Joo CHA ; Gham HUR ; Jung Wook SUH
Journal of the Korean Radiological Society 1995;33(1):139-141
In the intestinal perforation during hydrostatic reduction for intussusception, the diluted isotonic Gastrografin may prevent body fluid shifting to peritoneal space, and granulomatous reaction resulting in intestinal obstruction, which can be induced by Barium on the peritoneal surface. We have experienced two perforations from 563 Gastrografin reductions during the last five years. One of the perforated cases had no complication on one year follow up after ileocecectomy, but the other, who was in the state of shock before the reduction, died at 133rd day after the operation. The cause of death was aspiration during the feeding. We report the above two cases of intestinal perforation by Gastrografin reduction without evidence of fatal complication.
Barium
;
Body Fluids
;
Cause of Death
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Child*
;
Colon*
;
Diatrizoate Meglumine*
;
Follow-Up Studies
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Humans
;
Intestinal Obstruction
;
Intestinal Perforation
;
Intussusception*
;
Shock
6.Clinical study of open tibia fractures treated with external fracture.
Seung Gyun CHA ; Won Suck LEE ; Kyoung Hoon KIM ; Jin Yong JUNG
The Journal of the Korean Orthopaedic Association 1992;27(4):1024-1029
No abstract available.
Tibia*
7.Clinical Efficacy of Carvedilol in Patients with Moderate to Severe Congestive Heart Failure.
Dong Hoon CHA ; Young Soo CHA ; Jin Hwan KOOK ; Kyung Wha WHANG ; Hyung Tae KIM ; Sang Wook LIM ; Tae Yong KIM ; Yun Kyung CHO ; Pil Won PARK
Korean Circulation Journal 1998;28(4):523-531
BACKGROUND: Clinical trials have shown that b-adrenergic blocking drugs are effective and well tolerated in patients with mild to moderate congestive heart failure. Carvedilol is a mild b1-selective adrenergic blocking agent with vasodilating properties due to a blocker and antioxidant and anti-proliferative properties. This study assessed the efficacy and safety of carvedilol in patients with moderate to severe congestive heart failure caused by idiopathic dilated cardiomyopathy. METHODS: We enrolled 27 patients with moderate to severe congestive heart failure with a left ventricular ejection fraction of 35% by MUGA scan. Each patient was randomly assigned to either control (n-9) or carvedilol (n-18, target dose 25 mg bid) for 6 months while background therapy with digoxin, diuretics, and ACE inhibitor remained constant. RESULTS: Compared to the control group, patients in the carvedilol group showed significant increase of left ventricular ejection fraction (p<0.05). In addition, patients in the carvedilol group had a tendency to show a decrease in left ventricular end-diastolic dimension and heart rate. Also, the carvedilol group had a greater frequency of symptomatic improvement than the control group. There was neither serious side effects nor hospitalization. CONCLUSION: These finding indicate that carvedilol produces important clinical benefits in patients with moderate to severe heart failure treated with digoxin, diuretics, and ACE inhibitor without serious side effects.
Cardiomyopathy, Dilated
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Digoxin
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Diuretics
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Heart Failure*
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Heart Rate
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Hospitalization
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Humans
;
Stroke Volume
8.The Association Between the 10-Year Risk of the Korean Stroke Risk Prediction Model and the Carotid Intima-Media Thickness.
Bo Woo JEONG ; Hyo Kyung SOHN ; Jin Hoon YANG ; Hwa Pyung LEE ; Chae Yong LEE
Journal of the Korean Neurological Association 2012;30(4):274-278
BACKGROUND: Both carotid intima-media thickness (IMT) and global risk score of cardiovascular disease were independent risk factors of stroke and heart disease. We assessed the correlation between the 10-year risk of Korean Stroke Risk Prediction model (KSRP) and carotid intima-media thickness. Additionally, from a perspective of carotid IMT measurement following KSRP risk stratification, we analyzed the difference of carotid IMT and plaque according to the KSRP risk strata. METHODS: Subjects were 282 persons who visited one hospital for the screening of stroke. The 10-year risk was calculated automatically based on the equation of KSRP model. The maximal carotid IMT and the plaque were adopted as the study variables. The sensitivity and the positive predictive value of the KSRP risk categories were calculated. RESULTS: The correlation coefficient between the KSRP risk and the maximal carotid IMT was 0.29 (p<0.01). The mean (+/-standard deviation) of KSRP risk of the group with carotid plaque was statistically significantly higher, 5.3 (+/-4.1), than that of the group without plaque, 3.3 (+/-3.1) (p< or =0.01). The sensitivity of the risk stratum with more than 6% of KSRP risk for the plaque was 28.2%. The positive predictive value of the above cut-point was 48.8%. CONCLUSIONS: The 6% of KSRP risk may be considered as the beginning point of intermediate risk stratum to recommend the carotid ultrasonography. However, generalization needs further studies for various populations.
Cardiovascular Diseases
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Carotid Intima-Media Thickness
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Generalization (Psychology)
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Heart Diseases
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Humans
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Mass Screening
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Risk Factors
;
Stroke
9.Comparison of Proximal Metatarsal Osteotomy andDistal Chevron Osteotomy for Correction of Hallux Valgus.
Duck Yun CHO ; Dong Hoon LEE ; Seung Yong RHEE ; In Sung LEE
Journal of Korean Foot and Ankle Society 2008;12(1):20-25
PURPOSE: The purpose of this study is comparison of radiological and clinical outcomes between proximal metatarsal osteotomy and distal chevron osteotomy for the correction of hallux valgus. MATERIALS AND METHODS: In this retrospective study, we included subjects who underwent the correction of hallux valgus in our institution between March 2001 and August 2006, with a minimum follow-up of 12 months. The group of proximal metatarsal osteotomy was 23 patients (34 feet); the group of distal chevron osteotomy was 20 patients (26 feet). The group of proximal metatarsal osteotomy was composed of 26 severe cases (76.5%) and 8 moderate cases (23.5%); the group of distal chevron osteotomy was composed of 13 severe cases (50.0%) and 13 moderate cases (50.0%). RESULTS: Compared to preoperative values, the hallux valgus angle, the first-second intermetatarsal angle and the distance of first-fifth metatarsal head were significantly decreased in two groups (p<0.05). In each parameter, the hallux valgus angle was decreased 66.3% (proximal metatarsal osteotomy) versus 49.6% (distal chevron osteotomy), which were significant (p=0.037). The first-second intermetatarsal angle and the distance of first-fifth metatarsal head were not significant. Mayo clinic forefoot scoring system (FFSS) score was significantly improved in two groups (p<0.05). The ratio of improvement was not significant (p=0.762). In severe group, hallux valgus angle and the first-second intermetatarsal angle was significantly decreased in proximal metatarsal osteotomy group compared to distal chevron osteotomy group (p<0.05), but the difference of the distance of first-fifth metatarsal head and FFSS score was not significant in both groups. In moderate group, the difference of all parameters was not significant in both groups. CONCLUSION: Although both proximal metatarsal osteotomy and distal chevron osteotomy showed satisfactory result in FFSS, proximal metatarsal osteotomy was more proper operative technique than distal chevron osteotomy in severe group, because of superiority of correction in radiological parameters.
Follow-Up Studies
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Hallux
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Hallux Valgus
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Head
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Humans
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Metatarsal Bones
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Osteotomy
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Retrospective Studies
10.Overcoming the Limitations of Fine Needle Aspiration Biopsy: Detection of Lateral Neck Node Metastasis in Papillary Thyroid Carcinoma.
Hak Hoon JUN ; Seok Mo KIM ; Bup Woo KIM ; Yong Sang LEE ; Hang Seok CHANG ; Cheong Soo PARK
Yonsei Medical Journal 2015;56(1):182-188
PURPOSE: Ultrasound (US) and US-guided fine needle aspiration biopsies (FNAB) are considered the modalities of choice for assessing lymph nodes suspected of containing metastases, but the sensitivity of FNAB varies and is specific to the operator. We analyzed the risk of FNAB providing false negative results of lateral neck node metastasis, and evaluated diagnostic accuracy of FNAB, in patients with papillary thyroid cancer. MATERIALS AND METHODS: FNAB was performed in 242 patients suspected of having lateral neck node metastasis on preoperative imaging. Thyroglobulin in the fine-needle aspirate washout (FNA wash-out Tg) and computed tomography enhancement (Hounsfield units) were measured. Patients with negative results on FNAB were examined by intraoperative frozen section. The false negative and true negative groups were compared. RESULTS: Of the 242 patients, 130 were confirmed as having lateral neck node metastases. In 74 patients, the metastasis was identified by FNAB. False positive results were observed in 2 patients (0.8%) and false negatives in 58 (44.6%). Risk analysis showed that patient age <45 years (p=0.006), tumor size >1 cm (p=0.008) and elevated FNA wash-out Tg (p=0.004) were significantly associated with false negative results on FNAB. The accuracy of FNAB increased significantly when combined with FNA wash-out Tg (p=0.003). CONCLUSION: To reduce the false negative rate of FNAB, patient age (<45 years), tumor size (>1 cm) and FNA wash-out Tg (>34.8 ng/mL) should be considered in preoperative planning. Accuracy may be improved by combining the results of FNAB and FNA wash-out Tg.
Adolescent
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Adult
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Aged
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Biopsy, Fine-Needle
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Carcinoma/*diagnosis/*pathology/radiography/surgery
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False Negative Reactions
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Female
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Humans
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Lymph Nodes/*pathology/radiography
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Lymphatic Metastasis/*pathology/radiography
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Male
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Middle Aged
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Multivariate Analysis
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Preoperative Care
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Risk Factors
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Sensitivity and Specificity
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Thyroglobulin/metabolism
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Thyroid Gland/*pathology
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Thyroid Neoplasms/*diagnosis/*pathology/radiography/surgery
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Tomography, X-Ray Computed
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Young Adult