The exact etiologies and mechanisms of ischemia in avascular necrosis of femoral head are still under investigation. But this condition seems to be increasing during a few decades with increasing use of steroid and alcohol abuse in Korea. The treatment modalities have been based on the stages of the disease by simple radiographic findings that do not describe the accurate pathological extent or localization. Therefore more sophisticated study is needed to treat the AVN of the femoral head well. Magnetic resonance images, simple radiographs, scintigraphs of 13 patients(22 femoral heads), who were admitted and treated at Seoul National University Hospital from April, 1989 to December, 1989 were correlated, to characterize the type of AVN by extent and location regardless of its stage and reveal the relationship between types and stages. It is the result of this study that the type of AVN as well as stage should be considered in determining the treatment modality.
Alcoholism ; Classification ; Head ; Ischemia ; Korea ; Magnetic Resonance Imaging ; Necrosis ; Seoul

BACKGROUND: Since percutaneous mitral valvuloplasty(PMV) using balloon was introduced by Inoue in 1984, this procedure has been accepted as a new non-surgical therapeutic modality for the treatment of selected patients with mitral stenosis. Pregnant women with mitral stenosis has suffered from life threatening complication due to altered hemodynamic changes and heart failure. Surgical valvotomy has been performed after failure of medical therapy with high risk of fetal mortality and teratogenicity. PMV can be an adequate alternative to surgical valvotomy in pregnant women. METHODS: After precise echocardiographic examination of mitral valve and its surrounding structures including thrombi in left artrium was performed, antegrade transseptal procedure was done in all 3 cases with abdominal shield using Inoue balloon technique. RESULTS: Mitral valve area increased over 1.5cm2 and hemodynamic variables improved immediately after PMV. Symptoms subsided soon after PMV in all 3 cases. Healthy normal babies were delivered transvaginally without difficulties in all 3 patients. CONCLUSIONS: Percutaneous mitral valvuloplasty is a safe and effective therapeuteic alternative to surgical valvotomy in a pregnant women with mitral stenosis who failed medical therapy, in a high risk or symptomatic pregnant women.
Echocardiography ; Female ; Fetal Mortality ; Heart Failure ; Hemodynamics ; Humans ; Mitral Valve ; Mitral Valve Stenosis ; Pregnancy* ; Pregnant Women

Menetrier's disease is a rare cause of thickened gastric wall. The differential diagnosis of diffuse gastricwall thickening such as lymphoma and adenocarcinoma should be expanded to include Menetrier's disease. The authorsexperienced a case of Menetrier's disease accompanied deep vein thrombosis, which was proved by operation andpathology. We carried out double cntrast upper G-I series and computed tomography , and report with review ofliteratures.
Adenocarcinoma ; Diagnosis, Differential ; Gastritis, Hypertrophic ; Iliac Vein ; Lymphoma ; Thrombosis ; Venous Thrombosis

PURPOSE: The purpose of this study was to evaluate the safety, feasibility and effectiveness of an endoluminally-placed bifurcated stent-graft (Vanguard) for the treatment of infrarenal abdominal aortic aneurysm (AAA). METHODS: Transluminal endovascular stent-graft placements were attempted in 29 patients (28 male, mean age 69+/-7 years) with AAAs involving the common iliac arteries from Aug. 1997 to Jan. 1999. Endovascular therapy was performed in the cardiac catheterization laboratory with epidural anesthesia. One side of the femoral artery was opened by surgical cutdown for the bifurcated stent-graft entry and the other side was punctured percutaneously for the straight stent-graft. Computed tomography and/or intraarterial angiography were performed during an average follow-up of 10 months (2-18 months). RESULTS: Primary success rate was 75.9% (22 of 29 patients) and the overall success rate was 79.3% with successful correction of one perigraft leak. Twenty patients (69.0%) had significant coronary artery disease. There were two technical failure cases, the one was tortuous iliac vessel with spasm, the other was disconnection of the stent-graft connecting portion. Complications related to procedure occurred in 13.8% of patients (4 of 29 patients) and two of these four patients had procedure-related mortality because of acute renal failure following contrast overdose and sepsis after operation. CONCLUSIONS: Endovascular treatment of infrarenal AAA with bifurcated stent-graft (Vanguard<0A397>) is effective, feasible and relatively safe. However, further investigation for the outcome, complication and long-term follow-up are needed.
Acute Kidney Injury ; Anesthesia, Epidural ; Angiography ; Aortic Aneurysm, Abdominal* ; Cardiac Catheterization ; Cardiac Catheters ; Coronary Artery Disease ; Endoleak ; Femoral Artery ; Follow-Up Studies ; Humans ; Iliac Artery ; Male ; Mortality ; Sepsis ; Spasm

BACKGROUND: The real incidence of atherosclerotic lesions in carotid and peripheral arteries in coronary artery disease patients is not well known in Korea. The aim of this study was to prospectively evaluate the prevalence of atherosclerotic involvement of the coronary, carotid, and peripheral arteries in each arterial disease patients. This study was also designed to evaluate the risk factors, the clinical characteristics of associated carotid artery stenosis in patients with coronary artery disease, and associated peripheral vascular disease in patients with coronary artery disease. METHODS: Between June 1996 and March 1998, 475 patients (369 males, 106 females, mean age 60+/-10 years) were studied. Three hundred and seventy-three patients who presented with ischemic symptoms were enrolled in the coronary artery disease group, 81 patients were enrolled in the peripheral vascular disease group due to presenting claudications, and 21 patients were enrolled in the carotid stenosis group due to presenting cerebrovascular symptoms. Coronary angiography was done by the routine method. Carotid angiography was performed at the aortic arch by the digital subtraction angiography method. Peripheral vascular angiography was taken from the suprarenal abdominal aorta to both femoral arteries. RESULTS: 1) Risk factors for coronary stenosis, peripheral vascular disease, and carotid stenosis: The risk factors were not different between coronary stenosis, peripheral vascular disease, and carotid stenosis groups, but smoking was more frequent among patients with peripheral vascular disease than in patients with coronary stenosis (p-value=0.001). 2) Coronary artery stenosis and carotid artery stenosis: The mean age of coronary artery patients with carotid stenosis was significantly older (p-value=0.006) than for patients without carotid stenosis. The prevalence of peripheral vascular disease was more common in patients with carotid stenosis than in patients without carotid stenosis. 3) Coronary artery stenosis and peripheral vascular disease: Carotid stenosis was more common inpatients with peripheral vascular disease than in patients without peripheral vascular disease in the coronary stenosis group. 4) Prevalence of coronary, carotid, and peripheral artery disease: In patients with coronary stenosis, the prevalence of carotid stenosis was 13.9% and that of peripheral vascular disease was 29.2%. In patients with peripheral artery stenosis, the prevalence of coronary stenosis was 45.7% and that of carotid artery disease was 33.3%. In patients with carotid stenosis, the prevalence of coronary stenosis was 81.0% and that of peripheral vascular disease was 52.4%. CONCLUSION: Carotid artery disease and peripheral vascular disease developed concurrently with coronary artery disease in a significant proportion of patients. Therefore, routine angiography of peripheral and carotid arteries in patients with coronary artery disease is considered, especially in old age.
Angiography* ; Angiography, Digital Subtraction ; Aorta, Abdominal ; Aorta, Thoracic ; Arteries ; Carotid Arteries* ; Carotid Artery Diseases ; Carotid Stenosis ; Constriction, Pathologic ; Coronary Angiography ; Coronary Artery Disease ; Coronary Stenosis ; Coronary Vessels ; Female ; Femoral Artery ; Humans ; Incidence ; Inpatients ; Korea ; Male ; Peripheral Arterial Disease ; Peripheral Vascular Diseases ; Prevalence ; Prospective Studies ; Risk Factors ; Smoke ; Smoking

BACKGROUND: Previous reports have suggested that alleles at the plasminogen activator inhibitor-1 (PAI-1) gene are associated with increased risk of developing coronary artery disease, including myocardial infarction and stroke through their effect on PAI-1 levels. Method: We attempted to search English literatures for all reports of possible effects of PAI-1 gene on cardiovascular disease in human published prior to November 1998. We used a Mantel-Haenszel method (fixed effect model) and random effect model, respectively, to perform a meta-analysis of 7 case-control studies that provided information related to the effects of PAI-1 gene on risk of cardiovascular disease. RESULTS: From 7 studies for diagnosed cardiovascular disease, the relative frequencies of the three genotypes among controls was (5G/5G) (homozygous normal), 24.5%; (4G/5G) (heterozygous), 48.2%, and (4G/4G) (homozygous for the mutant, 675 GGGG), 27.3%. These relative frequencies in cases were 21.7% for 5G/5G, 48.0% for 4G/5G, and 30.3% for 4G/4G. In fixed effect model, compared with those with genotype (5G/5G), the overall odds ratio (OR) for cardiovascular disease among those with (4G/5G) was 1.12 (95% CI, 0.93 to 1.34), and it was 1.20 (1.01 to 1.44) for the (4G/4G) genotype. For five studies with myocardial infarction as the outcome, the overall OR of myocardial infarction was 1.20 (0.99 to 1.47) for those with (4G/5G) and 1.24 (1.00, 1.54) for those with (4G/4G) genotypes, respectively. CONCLUSION: Our findings provide support for the weak association between PAI-1 gene and cardiovascular disease, in particular, myocardial infarction.
Alleles ; Cardiovascular Diseases* ; Case-Control Studies* ; Coronary Artery Disease ; Genotype ; Humans ; Myocardial Infarction ; Odds Ratio ; Plasminogen Activator Inhibitor 1* ; Plasminogen Activators ; Polymorphism, Genetic* ; Stroke

BACKGROUND AND OBJECTIVES: Though the surgical intervention of subclavian artery stenosis has been effective, its high morbidity and mortality have limited its clinical application. In 1980 percutaneous balloon angioplasty of stenotic artery was introduced as a substitute for surgical intervention and subsequent reports have supported its efficacy noting that it is more effective when combined with stent. The purpose of this study was to assess the feasibility, safety, and efficacy of percutaneous intervention as an alternative or primary therapy for symptomatic subclavian artery stenosis. METHODS: Between September 1993 and October 1998, 17 lesions in 16 patients of symptomatic subclavian artery stenosis were enrolled as candidates for nonsurgical intervention. We performed percutaneous balloon angioplasty with stenting to the subclavian artery stenosis and evaluated the early results. RESULTS: 1)The patients had a mean age of 55+/-14 years and 13 of 16 patients were male. 2)Subclavian artery stenting was successful in 94% (16/17) of the lesion without significant complications. The cause of failure was suboptimal result after deployment of stent. 3)The types of stents deployed were Strecker stents in 4, Palmaz stents in 8, Wall stents in 3 and Jo stents in 2 cases. 4)The peak and mean pressure gradient reduced from 58.5+/-17.0 to 8.5+/-7.4 and 31.4+/-13.0 to 4.7+/-5.5 mmHg respectively (p<0.01) and the degree of luminal stenosis decreased from 92.5+/-8.5% to 10.0+/-14.3%. (p<0.01) CONCLUSION: Subclavian artery stenosis can be managed safely and effectively through percutaneous balloon angioplasty with stenting, with an excellent technical success rate and less morbidity and mortality particularly in patients coexisting other vascular and systemic diseases. However, the long-term patency and clinical effects should be warranted.
Angioplasty, Balloon ; Arteries ; Constriction, Pathologic ; Humans ; Male ; Mortality ; Phenobarbital ; Stents* ; Subclavian Artery* ; Subclavian Steal Syndrome

No abstract available.

No abstract available.
Gallstones* ; Lithotripsy* ; Ultrasonography*

The deleterious effects of infected urine refluxing into the collecting system are well documented. The resultant renal scarring, parenchymal atrophy and interference with renal growth and function are recognized sequela that may profoundly affect the future of these children. Prevention of reflux nephropathy depends upon early identification off reflux and appropriate management with continuous antibiotic chemoprophylaxis or surgical correction. The ultimate goal of therapy for vesicoureteral reflux, whether medical or surgical , aims at protecting the kidney from scarring, improving the pre-existing renal function and allowing the fulfillment of renal growth potential. We report 11 patients(19 kidneys) with vesicoureteral reflux treated with ureteroneocystostomy during the past 4 years. Follow-up over 3 months was possible in 9 patients who have had no evidence of recurrent pyelonephritic episodes. In 9 patients(15 ureters), performed postoperative I.V.P. and V.C.U.G., reflux was disappeared in 8(14 ureters) and still persisted in only 1(1 ureter) with grade I. And 13 kidneys have been improved radiographically, but 2 which had been shown unilateral atrophy and contralateral compensatory hypertrophy, have not been changed postoperatively. Renal scarring in 8 kidneys(42%), associated with severe reflux(more than grade IV) and infection, have not been improved postoperatively, but the development of new scars and the progression of established scars have not been observed.
Atrophy ; Chemoprevention ; Child* ; Cicatrix ; Follow-Up Studies ; Humans ; Hypertrophy ; Kidney ; Vesico-Ureteral Reflux*