1.Comparative Study of Acute and Chronic Reconstruction of Anterior Cruciate Ligament?.
Sang Gwon CHO ; Eun Kyoo SONG ; Jong Keun SEON ; Bong Hyun BAE ; Sang Jin PARK ; Ki Hyeoung KIM
Journal of the Korean Knee Society 2006;18(1):86-90
PURPOSE: To compare the clinical? results and stability of acute and chronic reconstruction of anterior cruciate ligament (ACL). MATERIALS AND METHODS: Patients who had ACL reconstruction with a quadruple hamstring tendon and ligament anchor (LA) screw with a minimum 2-year follow-up were included in this study. Acute (within 4 weeks) reconstruction group was composed of 27 knees and chronic (over 3 months) group was 44 knees. We compared the two groups with regard to Lysholm knee score, range of motion, thigh circumference, Lachman test, Tegner activity scale, associated meniscal injuries, and anterior laxity difference by Telos stress arthrometer. RESULTS: At last follow-up, no significant differences were found between the acute and chronic groups for Lysholm score, range of motion, Lachman test, Tegner activity scale, and instrumental laxity. 16 cases (59%) of acute and 33 cases (75%) of chronic patients had a meniscal injuries of which were reparable in 5 cases (28%) and 7 cases (17%). CONCLUSIONS: Acute reconstruction of ACL had excellent clinical and radiologic results as good as the chronic group without motion problem.
Anterior Cruciate Ligament*
;
Follow-Up Studies
;
Humans
;
Knee
;
Ligaments
;
Range of Motion, Articular
;
Tendons
;
Thigh
2.Clinical experiences of open heart surgery.
Kwang Hyun CHO ; Youn Ho HWANG ; Yang Haeng LEE ; Ji Yoon RYOO ; Kang Joo CHOI ; Sang Jin LEE ; Sang Gwon LEE ; Yang Won KIM ; Yong Gil CHO ; Youn Kyu KIM ; Suk Chul CHOI ; Young Whan SO
The Korean Journal of Thoracic and Cardiovascular Surgery 1993;26(4):282-293
No abstract available.
Heart*
;
Thoracic Surgery*
3.Abnormal Development of Neural Stem Cell Niche in the Dentate Gyrus of Menkes Disease
Sung-kuk CHO ; Suhyun GWON ; Hyun Ah KIM ; Jiwon KIM ; Sung Yoo CHO ; Dong-Eog KIM ; Jong-Hee CHAE ; Dae Hwi PARK ; Yu Kyeong HWANG
International Journal of Stem Cells 2022;15(3):270-282
Background and Objectives:
Menkes disease (MNK) is a rare X-linked recessive disease, caused by mutations in the copper transporting ATP7A gene that is required for copper homeostasis. MNK patients experience various clinical symptoms including neurological defects that are closely related to the prognosis of MNK patients. Neural stem cells (NSCs) in the hippocampal dentate gyrus (DG) produce new neurons throughout life, and defects in DG neurogenesis are often correlated with cognitive and behavioral problems. However, neurodevelopmental defects in the DG during postnatal period in MNK have not been understood yet.
Methods:
and Results: Mottled-brindled (Mo Br/y ) mice (MNK mice) and littermate controls were used in this study. In vivo microCT imaging and immunohistochemistry results demonstrate that blood vasculatures in hippocampus are abnormally decreased in MNK mice. Furthermore, postnatal establishment of NSC population and their neurogenesis are severely compromised in the DG of MNK mice. In addition, in vitro analyses using hippocampal neurosphere culture followed by immunocytochemistry and immunoblotting suggest that neurogenesis from MNK NSCs is also significantly compromised, corresponding to defective neurogenic gene expression in MNK derived neurons.
Conclusions
Our study is the first reports demonstrating that improper expansion of the postnatal NSC population followed by significant reduction of neurogenesis may contribute to neurodevelopmental symptoms in MNK. In conclusion, our results provide new insight into early neurodevelopmental defects in MNK and emphasize the needs for early diagnosis and new therapeutic strategies in the postnatal central nerve system damage of MNK patients.
4.CA Case of Non-traumatic Hemobilia due to Pseudoaneurysm of the Hepatic Artery.
Gwon Hyun CHO ; Jong Jun LEE ; Sang Kyun YU ; Kwang An KWON ; Dong Kyun PARK ; Yeon Suk KIM ; Yang Suh KU ; Yu Kyung KIM ; Ju Hyun KIM
Korean Journal of Gastrointestinal Endoscopy 2006;33(3):173-177
Hemobilia is a cause of obscure gastrointestinal hemorrhage. Most cases have an iatrogenic or traumatic origin but cases of hemobilia with non-traumatic causes are rare. The non-traumatic causes of hemobilia are inflammation, gallstones, neoplasm and vascular lesions. Currently, various therapeutic options are available for hemobilia, and transarterial embolization is now the first line of intervention used to stop the bleeding of hemobilia, which shows a high success rate of approximately 80% to 100% with a lower morbidity and mortality rate than with surgery. We report a rare case of non-traumatic hemobilia caused by a pseudoaneurysm of the hepatic artery that was successfully treated with transarterial embolization.
Aneurysm, False*
;
Gallstones
;
Gastrointestinal Hemorrhage
;
Hemobilia*
;
Hemorrhage
;
Hepatic Artery*
;
Inflammation
;
Mortality
5.Polyp Clearance via Operative and Endoscopic Polypectomy in Patients With Peutz-Jeghers Syndrome After Multiple Small Bowel Resections.
Do Hyun LEE ; Hyun Deok SHIN ; Woo Hee CHO ; Kyoung Hwang SHIN ; Sora LEE ; Jeong Eun SHIN ; Hwan NAMGUNG ; Ji Eun GWON
Intestinal Research 2014;12(4):320-327
Peutz-Jeghers syndrome is an autosomal dominant inherited disease that manifests as a combination of mucocutaneous pigmentation and gastrointestinal hamartomatous polyps that usually cause intussusception and intestinal hemorrhage. We report the case of a 40-year-old male patient who was diagnosed 20 years ago and had previously undergone 3 intestinal resection surgeries. This time, with the use of combined operative and endoscopic polypectomy, more than 100 polyps were removed. This technique is useful for providing a "clean" small intestine that allows the patient a long interval between laparotomies and reduces the complications associated with multiple laparotomies and resections.
Adult
;
Endoscopy
;
Hemorrhage
;
Humans
;
Intestine, Small
;
Intussusception
;
Laparotomy
;
Male
;
Peutz-Jeghers Syndrome*
;
Pigmentation
;
Polyps*
6.Intrafamilial Spread of Diarrhea-associated Hemolytic Uremic Syndrome.
Kyoung Hee HAN ; Hyun Kyung LEE ; Sung Ha LEE ; Hee Yeon CHO ; Il Soo HA ; Hae Il CHEONG ; Yong CHOI ; Hyun Mi BAE ; Suhng Gwon KIM
Journal of the Korean Society of Pediatric Nephrology 2006;10(2):249-256
Diarrhea-associated hemolytic uremic syndrome(D+ HUS) is induced by enterohemorrhagic Escherichia coli(EHEC) and is characterized by the triad of microangiopathic hemolytic anemia, thrombocytopenia, and acute renal failure. The disease is usually transmitted by meat and water contaminated by excreta of domestic animals. We report a son and his mother with diarrhea-associated hemolytic uremic syndrome that spread within the family.
Acute Kidney Injury
;
Anemia, Hemolytic
;
Animals, Domestic
;
Enterohemorrhagic Escherichia coli
;
Escherichia
;
Hemolytic-Uremic Syndrome*
;
Humans
;
Meat
;
Mothers
;
Thrombocytopenia
7.Dissociation of Polyethylene Liner of the Dual Mobility Acetabular Component after Closed Reduction of Dislocation: A Case Report.
Kee Hyung RHYU ; Chan Il BAE ; Ju Hyun NAM ; Jung Gwon BAE ; Yoon Je CHO ; Young Soo CHUN
Hip & Pelvis 2017;29(2):133-138
A dual mobility acetabular component has a structure that combines a polyethylene liner and a femoral head, unlike the general design of acetabular cups, making the dissociation of a polyethylene liner highly unlikely. In addition, it increases the range of motion and reduces the possibility of dislocations by increasing a jump distance. A fifty-one-year-old male who had received total hip arthroplasty with the dual mobility acetabular component visited a hospital for a posterior hip dislocation 10 weeks after the operation. At the emergency room, closed reduction was performed and the dislocation was reduced. However, plain imaging test revealed polyethylene liner dissociation after the closed reduction. Revision surgery was performed. We will report a rare case of early dislocation of the dual mobility acetabular component and dissociation of polyethylene liner accompanied with a literature review.
Acetabulum*
;
Arthroplasty, Replacement, Hip
;
Dislocations*
;
Emergency Service, Hospital
;
Femur Head
;
Head
;
Hip Dislocation
;
Hip Joint
;
Hip Prosthesis
;
Humans
;
Male
;
Polyethylene*
;
Range of Motion, Articular
8.Risk Factors of Redo-valve Replacement.
Kang Joo CHOI ; Kwang Hyun CHO ; Sung Ryong KIM ; Sang Gwon LEE ; Hee Jae JUN ; Young Chul YOON ; Yang Haeng LEE ; Youn Ho HWANG
The Korean Journal of Thoracic and Cardiovascular Surgery 2002;35(11):785-791
BACKGROUND: The results of reoperative valve replacement can be improved if appropriate analysis for the risk of reoperation was achieved. The purpose of our study was to analyze the results of reoperations for failure of bioprosthesis, and to define the risk factors in high-risk populations for reoperative procedures. MATERIAL AND METHOD: The series of 46 consecutive patients who had undergone first reoperative replacement for failed bioprosthesis between 1993 and 2001 were reviewed retrospectively. Mean age was 42+/-12 years, mean body surface area was 1.52+/-0.15 m2. The reoperative procedure comprised of 36 MVR, 8 DVR, and 2 AVR. The first operation comprised of 2 DVR, 1 AVR, and 43 MVR. Factors which were choose to assess a predictor of results in reoperative valve replacement were sex, old age(>60 years), early age at first operation(<30 years), long interval between first and redo operation(>15years), poor NYHA functional class(>3), LV dysfunction(LVEF<45%), long operation time(>8hours), endocarditis, combined procedures, and renal insufficiency. RESULT: Overall mortality was 4.3%(2 cases). The risk factors that influenced postoperative complications and unexpected postoperative results were lower ejection fraction(p=0.012), older age(p=0.045), endocarditis(p=0.023), long operation time above 8 hours(p=0.027). There was no statistically significant factor influencing hospital mortality. CONCLUSION: No factor influenced the mortality. Better results could be achieved if reoperation was performed carefully in poor left ventricular function, old aged patient, and with endocarditis. Effort to shorten the operation time would be helpful on postoperative results.
Bioprosthesis
;
Body Surface Area
;
Endocarditis
;
Heart Valve Prosthesis
;
Hospital Mortality
;
Humans
;
Mortality
;
Postoperative Complications
;
Renal Insufficiency
;
Reoperation
;
Retrospective Studies
;
Risk Factors*
;
Ventricular Function, Left
9.New Device for Dilatation of Percutaneous Biliary Tract.
Sung Gwon KANG ; Myung Gwan LIM ; Hyun Ki YOON ; Joo Won SHIN ; Young Kook CHO ; Chang Hae SUH ; Ho Young SONG ; Kyu Bo SUNG
Journal of the Korean Radiological Society 1997;36(6):971-974
PURPOSE: To evaluate the usefulness of percutaneous transhepatic biliary drainage (PTBD) tract dilatation using a Nipro set. MATERIALS AND METHODS: We dilated 28 percutaneous biliary drainage tracts up to 18F ; 26 procedures involved PTBD, and two, cholecystostomy. A Nipro set was used for dilatation, the purposes of which were stone removal (n=18) and choledochoscopic biposy (n=10). For dilatation, local anesthesia was used in all cases. RESULTS: In all patients, tract dilatation was successful. In 21 of 28 cases, dilatation of the right PTBD tract was involved, and in five of 28, dilatation of the left tract. In two cases, tract dilatation was done in cholecystostomy tracts. Complications encountered were pain (n=17), bradycardia (n=2), hemobilia (n=2), bleeding (n=1)and fever (n=1). CONCLUSION: In choledocoscopy, tract dilatation using a Nipro set is safe and simple.
Anesthesia, Local
;
Biliary Tract*
;
Bradycardia
;
Cholecystostomy
;
Dilatation*
;
Drainage
;
Fever
;
Hemobilia
;
Hemorrhage
;
Humans
10.The Evaluation of Gallbladder Function by Tc-99m-DISIDA Scintigraphy in Diabetic Patients.
In Shup HWANG ; Kwang Hyun RHU ; Byung Jin CHOI ; Hong Nam KIM ; Young Ho RHO ; Sin HAN ; Youn Kwon KIM ; So Yon KIM ; Min Koo CHO ; Gwon Jun LEE
Korean Journal of Medicine 1998;54(4):514-522
OBJECTIVES: Diabetic autonomic neuropathy is a common complication of long standing diabetes mellitus and is well known to induce the motor dysfunction of cardiovascular system, genitourinary system and diges tive system. Although many studies have done to eval uate the diabetic autonomic neuropathy, gallbladder motor function and biliary dynamic study to evaluate the change of gallbladder function in diabetic patients is relatively rare. This study was performed to measure the gall bladder ejection fraction using Tc- 99m-DISIDA with fatty meal in order to evaluate the gallbladder motor func tion in diabetic patients and to examine the usefulness of it in analyzing diabetic autonomic neuropathy. METHODS: 51 diabetic patients(males 31, females 18, mean age 57yr(39-77yr)) and 18 control subjects(males 14, females 4, mean aged 47yr(31-70yr)) without gall stone and impaired liver function were enrolled in our study. Also the diabetic patients were categorized by age, disease duration, body weight and diabetic complications such as retinopathy, peripheral neuropathy and cardiovas cular autonomic neuropathy accompanying with or not. RESULTS: 1) Median value and interquartile range of gallbladder ejection fraction(%) were 66%(48-79%) in diabetic pa tients group and 75%(64-80%) in control subjects. There was no statistically significant difference between the two groups, but the mean value of diabetic patients was slightly lower than that of control subjects. 2) There was no significant difference between the two groups in mean value of gallbladder ejection fraction in every age group(P>0.05). 3) Median value of gallbladder ejection fraction in diabetic groups with less than 10 years of duration (both under 5 years and 5 to 10 years groups) was similar to that of control subjects. However in patients whose diabetic conditions last more than 10 years, the median range of gallbladder ejection fraction was significantly lower than that of control subjects(p<0.05). 4) Median range of gallbladder ejection fraction in obese diabetic patients group was significant lower than those of control subjects and non-obese diabetic pa tients(p<0.05). 5) Median value of gallbadder was lower in diabetic patients group with complications like retinopathy, periph eral neuropathy or cardiovascular autonomic neuropathy (p<0.05) in comparison with those of control subjects and diabetic patients group without diabetic complication (p>0.05). Also seven diabetic patients whose gallbladder ejection fraction was reduced under 35% have had at least two diabetic complications. CONCLUSION: We observed that gallbladder ejection fraction of diabetic patients was reduced compared with that of control subjects. This is due to the reduced gallbladder muscle contractility resulting from diabetic autonomic dysfunction. These results suggest that the assessment of gallbladder ejection fraction using 99m- Tc-DISIDA would be useful to diagnose diabetic auto nomic neropathy.
Body Weight
;
Cardiovascular System
;
Diabetes Complications
;
Diabetes Mellitus
;
Diabetic Neuropathies
;
Female
;
Gallbladder*
;
Gallstones
;
Humans
;
Liver
;
Meals
;
Peripheral Nervous System Diseases
;
Radionuclide Imaging*
;
Urinary Bladder
;
Urogenital System