2.Clinical Analysis of Chronic Ischemic Foot Ulcer using Ischemic Index with Flowmeter and Wagner Classification.
Myung Rok OH ; Nae Ho LEE ; Kyung Moo YANG
Journal of the Korean Society of Plastic and Reconstructive Surgeons 1999;26(4):635-640
It is currently necessary to manage chronic ischemic foot gangrene because the rate of hospitalization and operations is increasing as a result of diet change and the growth of an aging population. Chronic ischemic foot gangrene is caused by Buerger`s disease, atherosclerosis and particularly, diabetes. In this study, we used the Wagner ischemic index with Doppler flowmeter and Wagner classification on 62 patients over 8 years from 1991 to 1998 as an index for treatment and prognosis. We measured the systolic pressure to determine the ischemic index, and according to Wagner the blood flow was inadequate in cases of diabetic foot gangrene and nondiabetic foot gangrene when it was below 0.45 and 0.35, respectively. According to the observation of clinical symptoms, we divided the cases by Wagner classification. Based on the above data, we performed conservative treatment, skin graft, local flap, superficial sural arterial island flap and amputation. We then followed up the patients and observed the treatment results. We concluded that the Wagner ischemic index with Doppler flowmeter and Wagner classification was useful in determining, selecting, and predicting the rate of survival or death as a result of amputation and graft when a surgical operation is performed.
Aging
;
Amputation
;
Atherosclerosis
;
Blood Pressure
;
Classification*
;
Diabetic Foot
;
Diet
;
Flowmeters*
;
Foot Ulcer*
;
Foot*
;
Gangrene
;
Hospitalization
;
Humans
;
Prognosis
;
Skin
;
Transplants
3.A Case of Targetoid Hemosiderotic Hemangioma.
Jong Rok LEE ; Si Won LEE ; Gwang Seong CHOI ; Seung Chul LEE ; Young Keun KIM
Annals of Dermatology 2001;13(4):228-231
Targetoid hemosiderotic hemangioma is a benign vascular tumor with a peculiar clinical presentation and histologic features sometimes difficult to differentiate from the patch stage of Kaposi's sarcoma, progressive lymphangioma, eosinophilic hemangioma, retiform hemangioendothelioma. We report a case of targetoid hemosiderotic hemangioma on upper back and right upper arm of a 28-year-old male. He has a 5mm × 5mm sized slightly raised violaceous papule surrounded by an ecchymotic halo on upper back and right upper arm. We took a biopsy of the lesion and identified it as targetoid hemosiderotic hemangioma. This is a case of targetoid hemosiderotic hemangioma with typical clinical and histopathological findings.
Adult
;
Arm
;
Biopsy
;
Eosinophils
;
Hemangioendothelioma
;
Hemangioma*
;
Humans
;
Lymphangioma
;
Male
;
Sarcoma, Kaposi
4.A Case of Polycythemia Vera with Splinter Hemorrhages.
Jong Rok LEE ; Seung Gyu LEE ; Gwang Seong CHOI ; Young Keun KIM
Annals of Dermatology 2002;14(4):207-209
Once splinter hemorrhage can be considered as a pathognomonic sign of subacute bacterial endocarditis. But it can also be associated with a variety of systemic disorders that increase capillary fragility or primary nail bed involvement in dermatologic disorders. The cause of splinter hemorrhage can usually be established by careful history and physical examination. We report a case of 33-year-old man with splinter hemorrhages, who had polycythemia vera.
Adult
;
Capillary Fragility
;
Endocarditis, Subacute Bacterial
;
Hemorrhage*
;
Humans
;
Physical Examination
;
Polycythemia Vera*
;
Polycythemia*
5.Mitral valve reconstruction.
Jay Won LEE ; Han Ku DO ; Taek Hee CHANG ; Sang Rok CHO ; Myung Hoon NA
The Korean Journal of Thoracic and Cardiovascular Surgery 1993;26(3):191-195
No abstract available.
Mitral Valve*
6.BILATERAL ROTATION ADVANCEMENT MYOCUTANEOUS FLAP OF THE SUPERFICIAL GLUTEUS MAXIMUS MUSCLE FOR SACRAL PRESSURE SORE.
In Joong KIM ; Jong Rok LEE ; Jong Woo CHOI ; Yoon Jae KANG ; Poong LIM
Journal of the Korean Society of Plastic and Reconstructive Surgeons 1997;24(4):783-789
No abstract available.
Myocutaneous Flap*
;
Pressure Ulcer*
7.The Implementation of Pattern Classifier for Karyotype Classification.
Yong Hoon CHANG ; Kwon Soon LEE ; Gye Rok JUN
Journal of Korean Society of Medical Informatics 1997;3(2):207-214
The human chromosome analysis is widely used to diagnose genetic disease and various congenital anomalies. Many researches on automated chromosome karyotype analysis has been carried out, some of which produced commercial systems. However, there still remains much room for improving the accuracy of chromosome classification. In this paper, We propose an optimal pattern classifier by neural network to improve the accuracy of chromosome classification. The proposed pattern classifier was built up of multi-step multi-layer neural network(MMANN). We reconstructed chromosome image to improve the chromosome classification accuracy and extracted three morphological features parameters such as centromeric index(C.1.), relative length ratio(R.L.), and relative area ratio(R.A.). This Parameters employed as input in neural network by preprocessing twenty human chromosome images. The experiment results show that the chromosome classification error is reduced much more than that of the other classification methods.
Chromosomes, Human
;
Classification*
;
Humans
;
Karyotype*
8.Mechanism of Hypercallus Formation in Patients with Concomitant Fracture and Head injury.
Jin Rok OH ; Sung Kwan HWANG ; Jung Ho RAH ; Doo Hee LEE ; Min Kyu MOON
Journal of Korean Orthopaedic Research Society 1999;2(2):125-131
We built the hypothesis that the hypertrophic callus formation is mediated by beta-endorphin that stimulates secretion of GH and increase circulation growth factor activity in head injury patient. We classified 4 groups such as 5 normal person(control), group I;5 patients with only fracture, group II;5 patients with fracture and head injury, group III; 5 patients with only head injury, group IV. We obtained the samples of serum from each group at 0, 2, 4, 6, 8 weeks after trauma and assessed the serum level of GH, GHRH, somatostatin. The serum level of GH was statisticallyu higher in group III, IV than group I, II. There was not significant difference in serum level of GHRH. The serum level of somatostatin was higher in group II, III, IV than group I, but there was no statistical significance in each group. GH has a important role in hypertrophic callus formation in severe head injury patients, but there was no evidence that the mechanism is mediated by beta-EndorphinGHRH & somatostatin-GH-GF-1, beta-FGF axis. There may be a another mechanism in increasing GH that was stimulated by beta-endorphin in thalamus and lateral ventricle, and it should be necessary for further evaluation of it.
Axis, Cervical Vertebra
;
beta-Endorphin
;
Bony Callus
;
Craniocerebral Trauma*
;
Head*
;
Humans
;
Lateral Ventricles
;
Somatostatin
;
Thalamus
9.Adrenalectomy for solitary adrenal metastasis from colon cancer.
Korean Journal of Medicine 2002;63(6):692-695
A 68 year-old woman visited our hospital because of constipation and hematochezia. Colonoscopy revealed an invasive fungating mass with a narrowing of lumen and severe ulceration at the sigmoid colon. An abdominal/pelvic CT scan showed an irregular wall thickening with a 10cm long narrowing at the sigmoid colon, and a 2 cm long right adrenal mass. We did an anterior resection and adrenalectomy. The histology of the specimens of the resected sigmoid colon and adrenal gland was the same. Finally, we diagnosed this case as being an adrenal metastasis from an advanced sigmoid colon cancer. The patient has been well for a year since the adrenalectomy, and been treated by the oral chemotherapeutic agent: doxifluridine 600 mg, leucovorin 90 mg.
Adrenal Glands
;
Adrenalectomy*
;
Aged
;
Colon*
;
Colon, Sigmoid
;
Colonic Neoplasms*
;
Colonoscopy
;
Constipation
;
Female
;
Gastrointestinal Hemorrhage
;
Humans
;
Leucovorin
;
Neoplasm Metastasis*
;
Sigmoid Neoplasms
;
Tomography, X-Ray Computed
;
Ulcer
10.Correction: Liver Procurement.
Young Rok CHOI ; Kwang Woong LEE
The Journal of the Korean Society for Transplantation 2015;29(4):247-247
This erratum is being published to correct of contents.