1.Angiographic Follow-up after Intracoronary Stenting with Flexible Coil(Gianturco-Roubin) Stent.
Won Heum SHIM ; Jong Won HA ; Sang Wook LIM ; June KWAN ; Moon Hyoung LEE
Korean Circulation Journal 1996;26(1):29-34
BACKGROUND: Intracoronary stent with various designs have been developed to treat dissections or acute closure after angioplasty. The efficacy of flexible coil stent as a bail-out device has been reported. However, the restenosis after stenting still remained as a main limitation like other devices. This study reports on the angiographic follow-up after successful intracoronary stenting with flexible coil stent. METHOD: From April 1993 through July 1994, coronary stenting was tried in 21 patients by a single operator for various indications(acute or threatened closure, suboptimal result after balloon angioplasty). The nineteen(95%) out of 20 patients in whom stent was successfully deployed underwent follow-up coronary angiography 7.6+/-3.0 months after coronary stenting. RESULT: Mean age was 54.7+/-11.3(33-73) years and 16 parients were men. Clinical diagnosis of patients were as follows : stable angina 7, unstable angina 6, old myocardial infarction with stable angina 6 and acute myocardial infarction in 1 patient, respectively. Stents were implanted at left anterior descending artery in 9, left circumflex artery in 5 and right coronary artery in 8. Ten out of 21 stents(47.6%) were found to be renarrowed more than 50% at follow-up coronary angiography. There was no significant difference in clinical and angiographic variables between restenosis group and no-restenosis group. Coronary artery bypass graft surgery was performed in 1 patient for the treatment of restenosis after stenting. Repeat PTCA was performed in 3 patients and remaining 5 patients were followed medically. CONCLUSION: Flexible coil(Gianturco-Roubin) coronary stent is a useful adjunct percutaneous intervention to prevent or minimize complicatioms associated with dissections. Despite favorable initial angiographic and clinical results, 47.6% of stents were found to be renarrowed significantly at follow-up coronary angiography. New techniques or more optimal characters of stents would be desired.
Angina, Stable
;
Angina, Unstable
;
Angioplasty
;
Arteries
;
Coronary Angiography
;
Coronary Artery Bypass
;
Coronary Vessels
;
Diagnosis
;
Follow-Up Studies*
;
Humans
;
Male
;
Myocardial Infarction
;
Stents*
;
Transplants
2.Angiographic Follow-up after Intracoronary Stenting with Flexible Coil(Gianturco-Roubin) Stent.
Won Heum SHIM ; Jong Won HA ; Sang Wook LIM ; June KWAN ; Moon Hyoung LEE
Korean Circulation Journal 1996;26(1):29-34
BACKGROUND: Intracoronary stent with various designs have been developed to treat dissections or acute closure after angioplasty. The efficacy of flexible coil stent as a bail-out device has been reported. However, the restenosis after stenting still remained as a main limitation like other devices. This study reports on the angiographic follow-up after successful intracoronary stenting with flexible coil stent. METHOD: From April 1993 through July 1994, coronary stenting was tried in 21 patients by a single operator for various indications(acute or threatened closure, suboptimal result after balloon angioplasty). The nineteen(95%) out of 20 patients in whom stent was successfully deployed underwent follow-up coronary angiography 7.6+/-3.0 months after coronary stenting. RESULT: Mean age was 54.7+/-11.3(33-73) years and 16 parients were men. Clinical diagnosis of patients were as follows : stable angina 7, unstable angina 6, old myocardial infarction with stable angina 6 and acute myocardial infarction in 1 patient, respectively. Stents were implanted at left anterior descending artery in 9, left circumflex artery in 5 and right coronary artery in 8. Ten out of 21 stents(47.6%) were found to be renarrowed more than 50% at follow-up coronary angiography. There was no significant difference in clinical and angiographic variables between restenosis group and no-restenosis group. Coronary artery bypass graft surgery was performed in 1 patient for the treatment of restenosis after stenting. Repeat PTCA was performed in 3 patients and remaining 5 patients were followed medically. CONCLUSION: Flexible coil(Gianturco-Roubin) coronary stent is a useful adjunct percutaneous intervention to prevent or minimize complicatioms associated with dissections. Despite favorable initial angiographic and clinical results, 47.6% of stents were found to be renarrowed significantly at follow-up coronary angiography. New techniques or more optimal characters of stents would be desired.
Angina, Stable
;
Angina, Unstable
;
Angioplasty
;
Arteries
;
Coronary Angiography
;
Coronary Artery Bypass
;
Coronary Vessels
;
Diagnosis
;
Follow-Up Studies*
;
Humans
;
Male
;
Myocardial Infarction
;
Stents*
;
Transplants
3.Prognostic Value of Rest Tl-201/Dipyridamole Stress Tc-99m-MIBI Myocardial Single Photon Emission Computed Tomography (SPECT).
Won Jun KANG ; Dong Soo LEE ; June Key CHUNG ; Myoung Mook LEE ; Myung Chul LEE
Korean Circulation Journal 1998;28(8):1260-1271
BACKGROUND AND OBJECTIVES: Dual isotope myocardial SPECT, rest thallium-201/dipyridamole stress Tc-99m sestamibi is used to diagnose coronary artery disease. We examined predictive value of myocardial SPECT for the prognosis of patients having or suspected coronary artery disease. MATERIALS AND METHOD: We examined 692 patients referred for dipyridamole stress myocardial perfusion SPECT. Cardiac events (hard and soft events) were followed up with medical record review and telephone interview. Survival analysis and multivariate Cox proportional hazard model were used to find significant predictors and the incremental predictive value of myocardial SPECT. Patients with coronary angiography (n=246) were analyzed in separate group. RESULTS: There were 4 hard events and 3 soft events in 341 normal SPECT group (1.20%/yr). There were 5 hard events and 21 soft events in 351 abnormal SPECT group (4.69%/yr). Survival curve was separated between normal SPECT group and abnormal SPECT group (p<0.01). In univariate analysis, smoking, history of myocardial infarction, typical chest pain and SPECT findings were important variables. In multivariate analysis, SPECT result was the single most independent predictor. Large reversible perfusion abnormality predicted worse prognosis. In patients with coronary angiography, SPECT did not add statistically significant predictive value to the coronary angiography. CONCLUSION: Dipyridamole stress Tl-201/ MIBI dual isotope myocardial perfusion SPECT provided excellent prognostic information. Extent of reversible perfusion decrease was the independent predictor of future cardiac events.
Chest Pain
;
Coronary Angiography
;
Coronary Artery Disease
;
Dipyridamole
;
Humans
;
Interviews as Topic
;
Medical Records
;
Multivariate Analysis
;
Myocardial Infarction
;
Perfusion
;
Prognosis
;
Proportional Hazards Models
;
Smoke
;
Smoking
;
Tomography, Emission-Computed, Single-Photon*
4.The Usefulness of Myocardial SPECT for the Preoperative Cardiac Risk Evaluation in Noncardiac Surgery.
Myung Chul LEE ; Dong Soo LEE ; Won Jun KANG ; June Key CHUNG ; Seok Tae LIM
Korean Journal of Nuclear Medicine 1999;33(3):273-281
PURPOSE: We investigated whether myocardial SPECT had additional usefulness to clinical, functional or surgical indices for the preoperative evaluation of cardiac risks in noncardiac surgery. MATERIALS AND METHODS: 118 patients (M: F=66:52, 62.7+/-10.5 years) were studied retrospectively. Eighteen underwent vascular surgeries and 100 nonvascular surgeries. Rest T1-201/stress Tc-99m-MIBI SPECT was performed before operation and cardiac events (hard event: cardiac death and myocardial infarction; soft event: ischemic ECG change, congestive heart failure and unstable angina) were surveyed through perioperative periods (14.6+/-5.6 days). Clinical risk indices, functional capacity, surgery procedures and SPECT findings were tested for their predictive values of perioperative cardiac events. RESULTS: Peri-operative cardiac events occurred in 25 patients (3 hard events and 22 soft events). Clinical risk indices, surgical procedure risks and SPECT findings but functional capacity were predictive of cardiac events. Reversible perfusion decrease was a better predictor than persistent decrease. Multivariate analysis sorted` out surgical procedure risk (p=0.0018) and SPECT findings (p=0.0001) as significant risk factors. SPECT could re-stratify perioperative cardiac risks in patients ranked with surgical procedures. CONCLUSION:: We conclude that myocardial SPECT provides additional predictive value to surgical type risks as well as clinical indexes or functional capacity for the prediction of preoperative cardiac events in noncardiac surgery.
Death
;
Electrocardiography
;
Heart Failure
;
Humans
;
Multivariate Analysis
;
Myocardial Infarction
;
Myocardial Ischemia
;
Perfusion
;
Perioperative Period
;
Retrospective Studies
;
Risk Factors
;
Tomography, Emission-Computed, Single-Photon*
5.Case of Variant Angina diagnosed with 24-hour Holter monitoring.
Kyung Il PARK ; Sung Yoon LEE ; Joon Hyung DOH ; June NAMGUNG ; Won Ro LEE
Korean Journal of Medicine 2005;68(2):243-243
No abstract available.
Electrocardiography, Ambulatory*
6.Interventional Treatment of Total Occlusion of Abdominal Aorta.
Won Heum SHIM ; Donghoon CHOI ; Moon Hyoung LEE ; Do Yun LEE ; Byung Chul JANG ; June KWAN
Korean Circulation Journal 1998;28(1):55-61
BACKGROUND: Total occlusion of the infrarenal abdominal aorta is a very rare disease in clinical practice. The clinical outcome may be poor unless management is attempted promptly. Surgical bypass has been recommended as the treatment of choice for these lesions. However, there was relatively high surgical mortality and morbidity associad with aorto-bifemoral bypass graft in patients with other systemic disease, especially coronary artery disease. As a result, the use of, thrombolysis with percutaneous transluminal angioplasty (PTA) has recently been extended to this disease as an alternative method to surgery. PTA is technically simpler with less morbidity and mortality than surgery.We report our experience with thrombolysis and balloon angioplasty of total aortic occlusion in 14 patients between March 1991 and December 1996. METHODS: Fourteen patients, whose mean age was 59+/-13 years (11 male, 3 female), serve as the study's patients. Aortography was introduced via transbrachial artery. The end hole multipurpose catheter with guidewire was introduced into the thrombotic portion of the total occlusion. Urokinase was infused into the thrombus through the catheter if there were no contraindications. in sysremic thrombolysis. Thrombolytic therapy was continued until the thrombi was resolved and flow was restored. Balloon dilatation was followed in residual stenotic lesions. Stents were implanted in case of suboptimal results after ballooning. RESULTS: Clinical findings were resting leg pain in 6 patients, gangrene in 5 patients, and claudication in 3 patients. The causes of aortic occlusion were thromboembolism in 4 patients and thrombosis of an atherosclerotic aorta in 10 patients. Location of obstruction was below the renal artery in all cases. The clinical outcome of interventional therapy was successful in all cases except one patients. Operative treatment was undertaken in 2 cases because they could not received thrombolytic therapy due to contraindication and complication of thrombolytic therapy (gastrointestinal bleeding). Near normal revascularization was achieved in 3 patients by thrombolytic therapy only. PTA was performed at the stenotic after thrombolytic therapy in 4 patients. Stenting were performed at the stenotic sites after balloon dilatation in another 4 patients. There was bleeding complication in one case. CONCLUSIONS: Interventional therapy such as thrombolytic therapy with PTA is an effective and safe treatment modality for abdominal aortic total occlusion in selected cases. These techniques were very useful in some high risk patients who received surgical bypass procedures.
Angioplasty
;
Angioplasty, Balloon
;
Aorta
;
Aorta, Abdominal*
;
Aortography
;
Arteries
;
Catheters
;
Coronary Artery Disease
;
Dilatation
;
Gangrene
;
Hemorrhage
;
Humans
;
Leg
;
Male
;
Mortality
;
Rare Diseases
;
Renal Artery
;
Stents
;
Thromboembolism
;
Thrombolytic Therapy
;
Thrombosis
;
Transplants
;
Urokinase-Type Plasminogen Activator
7.A Case of Widespread Scleredema Treated with Cyclosporine and Steroid.
Hye Won KIM ; Min Wha CHOI ; Sook Ja SON ; June Hyunkyung LEE ; Tae Young HAN
Korean Journal of Dermatology 2017;55(8):537-538
No abstract available.
Cyclosporine*
;
Scleredema Adultorum*
8.Detection of Human Papillomavirus 16/18, 31/33/35 in Verrucous Carcinoma of the Larynx by In Situ Hybridization with Human Papillomavirus DNA Probes.
Ki Kwon KIM ; Sang Sook LEE ; June Sik PARK ; Seung Won JIN ; U Ik SOHN
Korean Journal of Pathology 1990;24(2):95-102
Verrucous carcinoma of the larynx is a distinct and uncommon variant of well-differentiated squamous cell-carcinoma. The authors hybridized in situ a case of laryngeal verrucous carcinoma with DNA prebes to humman papillomavirus (HPV) 6, 11, 16, 18, 31, 33 and 35. The DNAs from the verrucous carcinoma of larynx hybridized with mixed DNA probes HPV-16/18 and 31/33/35. In addition, there was an evidence of HPV infection based on hybridization with mixed DNA probe HPV-6/11 in the adjacent papilloma tissue. By in situ DNA hybridization techniques, we clearly demonstrated human papillomavirus (HPV-16/18, and 31/33/35) related sequences in this neoplasm. These findings suggest the role of HPV-6/11 in the development of laryngeal papilloma ad HPV-16/18 and 31/33/35 probably on the progression to verrucous carcinoma.
Humans
9.Histologic study of chemical peel in guinea pig after pretreatment with tretinoin and tretinoin-combined pretreatment kit.
Won June YOON ; Heung Sik PARK ; Dong Jin LEE ; Chin Ho YOON ; Han Joong KIM
Journal of the Korean Society of Plastic and Reconstructive Surgeons 1998;25(6):988-996
The purpose of this study was to evaluate the histologic difference that occured after trichloroacetic acid(TCA) chemical peel in an animal model that was pretreated with Tretinoin alone or Tretinoin-based combined pretreatment kit. Eight Hartley white guinea pigs were used in our study. The dorsal skin of the guinea pigs was divided into six equal squares(2x2 cm). Upper two areas of these six were not pretreated, middle two areas were pretreated for 4 weeks with Tretinoin alone and lower two areas were pretreated for 4 weeks with Tretinoin-based combined kit. Each guinea pig underwent chemical peel with 50% TCA. The wounded areas were biopsied at post-peeling 3 weeks and 6 weeks. The histology revealed that those animals pretreated with combined kit healed quicker than the animals pretreated with Tretinoin alone. This study implies that if patients are treated with Tretinoin-based-combined pretreatment kit before undergoing chemical peel, the pretreatment time will be shortened.
Animals
;
Guinea Pigs*
;
Guinea*
;
Humans
;
Models, Animal
;
Skin
;
Tretinoin*
;
Wounds and Injuries
10.Efficacy of Vaptans for Management of Ascites in Patients with Liver Cirrhosis.
Won Hyeok CHOE ; June Sung LEE
Korean Journal of Medicine 2012;82(1):22-31
Ascites is the most common complication of liver cirrhosis, but its pharmacological management is unsatisfactory in some patients because of a lack of response to treatment with conventional diuretics. Patients with cirrhosis and ascites generally have increased non-osmotic secretion of vasopressin which participates in the pathogenesis of fluid retention. Vaptans are a new family of orally active drugs that increase urine volume by antagonizing specifically the vasopressin receptors in the principal cells of the collecting ducts that have been shown to correct dilutional hyponatremia effectively. They also seem to be promising in the management of ascites by reducing the increased extracellular fluid volume in conditions associated with water retention including liver cirrhosis. However, there is a paucity of information on whether vaptans might have beneficial effect in enhancing ascites reduction in patients with cirrhosis. This review addresses the pharmacological actions of vaptans, their clinical applications, and future potential roles in managing patients with liver cirrhosis and ascites.
Ascites
;
Diuretics
;
Extracellular Fluid
;
Fibrosis
;
Humans
;
Hyponatremia
;
Liver
;
Liver Cirrhosis
;
Receptors, Vasopressin
;
Retention (Psychology)
;
Vasopressins
;
Water