1.Recent Update for Pancreas Stem Cells.
Korean Journal of Anatomy 2004;37(2):123-131
No abstract available.
Pancreas*
;
Stem Cells*
2.One Stage Operation of Colon Perforation.
Dae Kun YOON ; Kang Sup SHIM ; Kwang Ho KIM ; Eung Bum PARK
Journal of the Korean Society of Coloproctology 1998;14(3):493-502
Colon has the highest bacterial concentration in the gastrointestinal tract. When the colon is perforated, the operator has to decide whether to perform primary closure, resection with anastomosis, proximal colostomy, and exteriorizatoion. In this retrospective study, from October, 1993, through July 1998, 56 patient with panperitonitis due to colon perforation were operated at Ewha womans University medical center. The rectal perforation was limited the intraperitoneal portion. Our cases were divided into two groups. Group I included 34 patients who treated with one step operations of primaryrepair or resection anastomosis. Group II included 22 patients who treated with two step operations of proximal colostomy or exteriorization. The one step operations were performed in 34 patients, proximal colostomy in 21 patients, and exteriorization in 1 patient. There was 13.7% in the incidence of motality and 33.3% in the incidence of morbidity. The Chi-square test was used to evaluate the significance of differences between two groups. Independent risk factors for adverse outcomes were compared and used to analyse the probability for adverse outcomes with respect to the mode of treatmen. The mode of treatment was not dependent on the risk factors. These results suggest that one could select positively primary closure or resection with anastomosis for the treatment of patients with panperitonitis due to colon perforation.
Academic Medical Centers
;
Colon*
;
Colostomy
;
Female
;
Gastrointestinal Tract
;
Humans
;
Incidence
;
Retrospective Studies
;
Risk Factors
3.Atrial Fibrillation Following Middle Cerebral Artery Infarct.
Sa Yoon KANG ; Joung Ho RHA ; Chung Kun HA
Journal of the Korean Neurological Association 2000;18(5):551-555
BACKGROUND: Atrial fibrillation (AF), commonly considered as a cardiac embolic source, can itself be induced by stroke. We therefore tried to find and analyze this 'stroke-induced' AF. METHODS: From the Inha University Stroke Registry of the past 2 years, 143 middle cerebral artery (MCA) territorial infarct patients who had been admitted within 48 hours after stroke onset were recruited to participate in the study. Electrocardiograms (EKG) on admission and follow-up during hospitalization were analyzed. Also, MCA infarct was subdivided according to insular involvement by brain imaging. RESULTS: Among 143 MCA territorial infarcts, 38 patients had AF on admission (Rt:21; Lt:17). Of those, insular involvements of the MCA infarct was noted in 32 patients. All the patients had a follow-up EKG and AF disappeared in 3 patients (Rt:2; Lt:1). In the remaining 105 patients, 10 patients subsequently developed new AF within 1 week after hospitalization. All those 10 patients had right-sided MCA infarcts and insular involvements were present in 9 patients. In summary, among the 48 MCA infarct associated with AF, 13 AF (Rt:12; Lt:1) were presumed to be the consequence and not the cause of stroke. CONCLUSIONS: Though human insular stimulation and inactivation studies have suggested that AF would be more common in left insular destructive lesions, it was not always supported in clinical series. From our study, presumed 'stroke-induced' AF was highly associated with right insular lesions. The mechanism of arrhythmogenesis by ischemic stroke might be more complicated than previously expected and, not merely the simple inactivation of an anatomical substrate, the insular cortex.
Atrial Fibrillation*
;
Electrocardiography
;
Follow-Up Studies
;
Hospitalization
;
Humans
;
Middle Cerebral Artery*
;
Neuroimaging
;
Stroke
4.Recurrent Transitional Cell Carcinoma of the Urethra in Men having Cystectomy and Ileal Conduit for Bladder Cancer.
Gil Ho LEE ; Duck Kim YOON ; Sung Kun KOH
Korean Journal of Urology 1987;28(2):215-218
15 male patients who received total cystectomy with ileal conduit for bladder tumor were reviewed in relation to the incidence of urethral involvement. Of 15 patients six had recurrent transitional cell carcinoma in the urethral remnant among them one (1/15) received subsequent therapeutic urethrectomy and remaining 5 patients underwent delayed therapeutic urethrectomy after confirmation of urethral tumor but 9 of the 15 had only received total cystectomy. We concluded that the remaining urethra might constitute a potential hazard for further tumor formation. We believe that prophylactic urethrectomy is the way to prevent the recurrence of the malignancy who have multiple tumors, concurrent upper tract tumors, and involvement of the trigone or prostatic urethra.
Carcinoma, Transitional Cell*
;
Cystectomy*
;
Humans
;
Incidence
;
Male
;
Recurrence
;
Urethra*
;
Urinary Bladder Neoplasms*
;
Urinary Bladder*
;
Urinary Diversion*
5.Lessons from Use of Continuous Glucose Monitoring Systems in Digital Healthcare
Endocrinology and Metabolism 2020;35(3):541-548
We live in a digital world where a variety of wearable medical devices are available. These technologies enable us to measure our health in our daily lives. It is increasingly possible to manage our own health directly through data gathered from these wearable devices. Likewise, healthcare professionals have also been able to indirectly monitor patients’ health. Healthcare professionals have accepted that digital technologies will play an increasingly important role in healthcare. Wearable technologies allow better collection of personal medical data, which healthcare professionals can use to improve the quality of healthcare provided to the public. The use of continuous glucose monitoring systems (CGMS) is the most representative and desirable case in the adoption of digital technology in healthcare. Using the case of CGMS and examining its use from the perspective of healthcare professionals, this paper discusses the necessary adjustments required in clinical practices. There is a need for various stakeholders, such as medical staff, patients, industry partners, and policy-makers, to utilize and harness the potential of digital technology.
6.Diabetic isolated oculomotor nerve palsy with loss of the papillaryreflex
Ji Youn HAN ; Kun Ho YOON ; Hoon Kyo KIM ; Kwang Woo LEE ; Ho Young SON ; Sung Ku KANG
Journal of the Korean Diabetes Association 1991;15(1):145-148
No abstract available.
Oculomotor Nerve Diseases
;
Oculomotor Nerve
7.Scleral grafts fer the Cases of Scleral Perforation, Scleral Ectasia and Scleral Necrosis.
Jae Ho KIM ; Ha Bum LEE ; Duck Kun YOON
Journal of the Korean Ophthalmological Society 1978;19(1):55-64
Since year of 1969. Authors have experienced five cases of seleral grafts for the repair of focal scleral traumatic defect, traumatic ectasia and necrosis after pterygium operation. The results are as follows: (1) Case 1 (13 aged, male) a large scleral defects after perforating injury of left eye was closed successfully with an onlay technique of scleral iso-graft (10 X 10mm) which was obtained from contralateral multiple ruptured eye. (2) Case 2, and 3 (17 and 23 aged, females) small focal scleral ectasias near the limbus (os) as a late complication of penetrating injuries in both cases were improved completely by electric diathermy and the onlay application of scleral allo-graft which were obtained from eye-bank eyes. (3) Case 4 (60 aged, male) a local small progressing undermined scleral necrosis near the nasal limbus (OD) which is supposed as a late complication (8 yrs later) of pterygium removal and strontium 90 irradiation on the scleral side could be cured successfull by a circular lamellar full-thickness scleral allo-graft (6mm). (4) Case 5 (60 aged, male) a much more advanced scleral necrosis and complicated uveitis (os) developed within 2 months after pterygium removal and Mitomycin C drop instillation was replac ed by a scleral allo-graft. But scleral necrosis and inflammatory processes of other. sctes were spreaded out to superior and temporal scleras within a months and then the eye was finally enucleated. Histo-pathology of an enucleated eye showed a chronic inflammatory reaction with many plasma cells and lymphocytes, occassionally giants cells.
Diathermy
;
Dilatation, Pathologic*
;
Inlays
;
Lymphocytes
;
Mitomycin
;
Necrosis*
;
Plasma Cells
;
Pterygium
;
Sclera
;
Strontium
;
Transplants*
;
Uveitis
8.A Case of Middle Cerebral Artery Infarct Developed Immediately After Head Injury.
Jee Hyun KWON ; Joung Ho RHA ; Sa Yoon KANG ; Choong Kun HA
Journal of the Korean Neurological Association 2000;18(1):106-108
Cerebral infarcts rarely occur following head injury. Carotid artery dissection is usually proposed mechanism in such cases. We experienced a case of middle cerebral artery (MCA) infarct occurred just after head trauma without evidence of vascular abnormality. A 59-year-old male was transported to the emergency room immediately after traffic accident. He had right zygomatic fracture without neck injury. Left hemiparesis was noticed, and brain CT revealed hyperdense MCA sign in the right side. His neurologic status deteriorated over 2 days, and brain MRI showed total right MCA infarct with midline shift. Cerebral angiography was unremarkable. Two months later he had improved so much, but left hemiparesis with right MCA infarction re-developed. We suggest head trauma immediately can induce cerebral infarct without neck vessel injury, and in differential diagnosis of focal neurologic deficit after trauma, cerebral infarct as well as hemorrhage or contusion must be considered.
Accidents, Traffic
;
Brain
;
Carotid Arteries
;
Cerebral Angiography
;
Contusions
;
Craniocerebral Trauma*
;
Diagnosis, Differential
;
Emergency Service, Hospital
;
Head*
;
Hemorrhage
;
Humans
;
Infarction, Middle Cerebral Artery
;
Magnetic Resonance Imaging
;
Male
;
Middle Aged
;
Middle Cerebral Artery*
;
Neck
;
Neck Injuries
;
Neurologic Manifestations
;
Paresis
;
Zygomatic Fractures
9.Is Routine Operative Cholangiography Necessary.
Dae Kun YOON ; Ku Yong CHUNG ; Ho Seong HAN ; Yong Man CHOI
Journal of the Korean Surgical Society 1998;55(6):883-889
BACKGROUND: Various studies on the prediction of common bile duct (CBD) stones through preoperative or operative cholangiography have been reported. When CBD stones were suspected due to preoperative screening factors, endoscopic retrograde cholangiopancreatography was done as a first choice and operative cholangiography could be omitted. We want to know the indications of selective cholangiography and the significance of routine operative cholangiography during a simple cholecystectomy. METHODS: The cases of 134 patients who received on open cholecystectomy between Jan. 1995 and Sept. 1997 were reviewed. Twenty-even (27) cases of a choledocholithotomy without cholangiography were discarded from this study. Our cases were divided into two groups: group I included 9 patients who had CBD Stones, which was pathologicaly confirmed by operative cholangiography, and group II included 98 patients who had no CBD Stones, which pathologicaly confirme by operative cholangiography. The predictability of pathologic CBD. was calculated by the factors as the total bilirubin, alkaline phosphatase, AST, ALT, GGT, CBD. diameter by sonography. According to the number of positive screening factors, 3 grades of scoring were imposed in each case. Grade I was the case where 0- screening factor was positive, grade II was the case where 2 screening factors were positive, and grade III was the case where 3 or more screening factors were positive. RESULTS: Eighty-ive (85) cases were grade I, 6 cases were grade II, and 16 cases were grade III. In grade I, only one case had asymptomatic CBD stones, and the negative predictability was 98.8%. In grade II, there were no CBD lesions, and the negative predictability was 100%. In grade III, there were 8 cases of pathologic CBD lesions, and the negative predictability was 50%. CONCLUSIONS: Precise prediction of CBD lesions before a cholecystectomy is of value in deciding whether or not to perform an operative cholangiography. In our study, we graded the patients according to 5 non-nvasive screening factors. In grade I cases, the negative predictability of 98.8% was acceptable for omitting the operative cholangiography. In grade II cases, the negative predictability was 100%, but in these cases, there was the possibility of pathologic CBD Stones. Hence, in these cases, an operative cholangiography may be done, depending on the surgeon's decision. In grade III cases, an operative cholangiography or a preoperative ERCP. is mandatory.
Alkaline Phosphatase
;
Bilirubin
;
Cholangiography*
;
Cholangiopancreatography, Endoscopic Retrograde
;
Cholecystectomy
;
Common Bile Duct
;
Humans
;
Mass Screening
10.Three Cases of Dieulafoy's Disease.
Kun Ho YANG ; Seoung Ryul KIM ; Hee Seung BOM ; Suk Bin KIM ; Il Chong PARK ; Chong Mann YOON
Korean Journal of Gastrointestinal Endoscopy 1986;6(1):27-30
Dieulafoys lesion consists of abnormally large gastric submucosal artery which ruptures into the stomach causing massive or recurrent intragikstric bleeding. The lesion is very small and easily overlooked even at laparatomy and aan only be correctly diagnosed by endoscopy or arteriography if the patient is actively bleeding. Three patients who were admitted with bleeding of upper gastrointestinal tract and eventually diagnosed as having Dieulafoys lesions were analysed. All were men with age range of 44 to 55 years. All patient were asymptomatic before presenting with hematemesis. Two of the three patients had had history of upper Gl bleeding. One patient used analgesics daily for ureteral colic and two patient drank alcohol excessively. Gastroscopy was performed during the bleeding episode in all three patients. Dieulafoy's lesion was seen in all three cases and in the second case, there was concomittent diffuse petechia in the whole stomach. The lesion was situated on the posterior wall of upper body in one, on anterior wall of upper body in another, lesser curvature side of gastric fundus in the other case. All three patient underwent laparotomy for persistent bleeding and the lesion was suture ligated only in two patients while in one patient vagotomy and pyloroplasty was added. Resection biopsy was performed in two cases and both revealed only normal gastric mucosa. All patients discharged after complete recover.
Analgesics
;
Angiography
;
Arteries
;
Biopsy
;
Endoscopy
;
Gastric Fundus
;
Gastric Mucosa
;
Gastroscopy
;
Hematemesis
;
Hemorrhage
;
Humans
;
Laparotomy
;
Male
;
Renal Colic
;
Rupture
;
Stomach
;
Sutures
;
Upper Gastrointestinal Tract
;
Vagotomy