BACKGROUND: Primary stenting as a direct reperfusion procedure after acute myocardial infarction might reduce recurrent myocardial infarction and target vessel revascularization. However, result of long or multiple stenting in the long or tandem lesions were not known. METHOD: From Jan. 1996 to Dec. 1998, patients with acute myocardial infarction including cardiogenic shock were undergone primary stenting using long or multiple stent. The clinical end points were death, recurrent infarction, subsequent bypass surgery, or repeat angioplasty of the infarct-related vessel. The results were compared with age, sex, lesion, and risk matched standard stenting group. RESULT: Baseline characteristics were similar for the 20 patients who underwent standard length stenting and the 13 patients who underwent long or multiple stenting. Stent diameter was similar in two group (3.4+/-0.3 mm vs. 3.5+/-0.4 mm, p=0.65), but total stent length was longer in long or multiple stenting group (15.5+/-1.8 mm vs. 40.18.4 mm, p=0.01). Average numbers of stent using in multiple stenting were 1.5+/-0.7. Stenting in the infarct-related artery was successful in all patients randomized to stent treatment. At 6 months, the incidence of the primary end point was 25% (5/20) in the standard stent group and 31%(4/13) in the long or multiple stent group (p=0.5). CONCLUSION: Outcomes of long or multiple stenting including mortality, recurrent myocardial infarction and target vessel revascularization was similar to standard stenting. Long or multiple stenting after acute myocardial infarction may possible procedure in some selective cases having long or tandem lesion.
Angioplasty* ; Arteries ; Humans ; Incidence ; Infarction ; Mortality ; Myocardial Infarction ; Reperfusion ; Shock, Cardiogenic ; Stents*

Bone materials diggd up from the Haemi nameless martyrdom holy place burial sites were severely broken into fragments of various size, clay matrix filled the bone marrow cavities, grass roots were spreaded into the periosteum and the fragments were very soft enough to be flaken. To make permanent specimens, bony fragments impregnated within unsaturated polyester resin with catalyzer MEKP, promotor 8% cobalt octoate, and UV absorber. Permanent specimens were so very transparent that all the macroscopic structures can be observed, and they were hard enough not to be broken or cracked. This method of preserving bony fragments is considered to be used in archaeologic preservation and in making teaching materials of various human organs or tissues.
Bone Marrow ; Burial* ; Cobalt ; Humans ; Methods ; Periosteum ; Poaceae ; Polyesters ; Teaching Materials

Primary tumors of the heart are rare, three quarter of the tumors are benign, and nearly half of the benign heart tumors are myxomas. Cardiac myxoma usually originate in the left atrium about 75 percent, however, only 3 to 4 percent of myxoma are detected in the left ventricle. We report on a 32 years old woman with left ventricular myxoma who presented with shortness of breath, chest tightness, and general weakness. Acute pulmonary embolism and left ventricular myxoma were found on a perfusion lung scan and echocadiogram. A mass located on septal wall of left ventricle was excised en bloc. The patient recovered uneventfully and careful follow up has be performed periodically.
Adult ; Dyspnea ; Female ; Follow-Up Studies ; Heart ; Heart Atria ; Heart Neoplasms ; Heart Ventricles ; Humans ; Lung ; Myxoma* ; Perfusion ; Pulmonary Embolism* ; Thorax

Higenamine is known to possess stimulatory activity on beta-receptor of the heart. Chronotropic actions of higenamic were studied in spontaneously beating right atrial muscle isolated from rabbits. The frequency of spontaneous beating and the relative threshold voltage of the right atrium were examined. The relative threshold voltage was defined as the minimal voltage of the given impulse above which the right atrium could be paced at the frequency of 20% of higenamine was also observed. Higenamine caused the postive chronotropic effect. This response became prominent as the ca2+ concentration in the bathing solution lowered. When tetrodotoxin was added to the bathing solution, the effect of higenemine altered and became similar to that of epinephrine. Higenamine reduced the relative threshold voltage of the right atrium in the bathing solution with [ca2+] of 0.5mM. Such effect was abolished by tetrodotoxin. The effects of verapamill on the spontaneous rate and the relativel threshold voltage were inhibited by higenemine. The above results suggest that, aithough the main action og higenamine is on the Ca channel, higenamine also have a minor effect of augmenting the Na channel.
Baths ; Epinephrine ; Heart ; Heart Atria* ; Heart Rate ; Rabbits ; Tetrodotoxin ; Verapamil

No abstract available.
Animals ; Mice*

BACKGROUND: Although the superior reperfusion and improved clinical outcome following angioplasty for acute myocardial infarction (AMI) have been well known, 10 to 15% of reinfarction and recurrent ischemia in hospital are main limitation of primary percutaneous transluminal coronary angioplasty (PTCA). This study was undertaken to examine the safety and feasibility of stent-supported primary angioplasty in acute myocardial infarction. METHODS: Between July 1995 and Jun. 1997, 32 patients underwent direct or rescue PTCA, including patients with cardiogenic shock. After PTCA, stenting was attempted in patient with dissection or having more than 30% of residual stenosis. Result: In patient with direct PTCA, angiographic success rate was obtained in 91% (30/32). Stenting was attempted in 15 of 30 patients. These patients had suboptimal results (8 patients), non-occlusive dissection (3 patients) and acute occlusion (2 patient). Thrombolysis in myocardial infarction (TIMI) grade 3 flow was restored in 28 patients (93%). In one patient no-reflow phenomena was observed following stent insertion. Despite intra-aortic balloon pumping, there was one death during the hopitalization due to cardiogenic shock following PTCA. Subacute stent thrombosis developed in two patients. 27 patients (90%) were event-free and clinically improved through out the follow up period (11.5+/-5.2 month). Quantitative angiography showed excellent angiographic result after stenting compared with balloon PTCA (2.4+/-0.6 mm vs. 3.4+/-0.3 mm p<0.01). CONCLUSION: After failure of initial angioplasty, coronary stenting can be a supportive therapeutic strategy. Coronary stenting results in a high degree of angiographic success, a low incidence of subacute thrombosis.
Angiography ; Angioplasty* ; Angioplasty, Balloon* ; Angioplasty, Balloon, Coronary ; Constriction, Pathologic ; Follow-Up Studies ; Humans ; Incidence ; Intra-Aortic Balloon Pumping ; Ischemia ; Myocardial Infarction* ; Reperfusion ; Shock, Cardiogenic ; Stents ; Thrombosis

OBJECTIVE: The patients with spinal cord injury (SCI) suffered by a lot of complications that influence the quality of life both physically and mentally. The purpose of this study was to evaluate the epidemiology of patients with spinal cord injury in incidence of the complication according to the injury level and period. METHOD: Retrospective study was done in 554 patients with SCI who discharged from Yonsei University Medical Center from January, 1987 to December, 1996. We investigated the incidence of each complication such as respiratory, cardiovascular, genitourinary, musculoskeletal, and dermatologic complications according to the neurologic level and each period (1987~1991, 1992~1996). RESULTS: Among the 554 cases, urologic complication (40.3%) was the most common complication followed by dermatologic (39.0%), musculoskeletal (33.6%), cardiovascular (27.1%) and so on. The most common complications of each system were autonomic dysreflexia (13.2%) in cardiovascular, pneumonia (9.6%) in respiratory, contracture (27.8%) in musculoskeletal, urinary tract infection (34.3%) in urologic, hemorrhoid in gastrointestinal, and central pain (24.0%) in neurogenic complications. The most common site of pressure sore was sacral area (58.9%). There was no significant difference in each complication according to the injury period. CONCLUSION: Urologic complication was the most prevalent in patients with SCI followed by dermatologic, musculoskeletal and so on. These basic results would be helpful for prevention and management of the complication of SCI.
Academic Medical Centers ; Autonomic Dysreflexia ; Contracture ; Epidemiologic Studies* ; Epidemiology ; Hemorrhoids ; Humans ; Incidence ; Pneumonia ; Pressure Ulcer ; Quality of Life ; Retrospective Studies ; Spinal Cord Injuries* ; Spinal Cord* ; Urinary Tract Infections

No abstract available.
Animals ; Mice* ; Oenanthe*

Intraaortic balloon counterpulsation (IAB) has been shown to prolong survival in the critically ill cardiac patients. Originally developed for use in the patients with cardiogenic shock, the indications have been expanded. But despite technical advances, the complication rate associated with IAB remains high. The most commonly reported complications include damage to the femoral artery and distal embolization. Other reported major complications are balloon rupture, limb loss, bleeding, systemic infection and bowel infarction. We report a patient complicated by ischemic colitis causing stenosis and intestinal obstruction after IAB insertion.
Colitis, Ischemic* ; Constriction, Pathologic* ; Counterpulsation* ; Critical Illness ; Extremities ; Femoral Artery ; Hemorrhage ; Humans ; Infarction ; Intestinal Obstruction ; Rupture ; Shock, Cardiogenic

It is known that CD95 (APO-1/Fas) is expressed on the cell surface, and apoptotic cell death can be induced by the CD95 ligation in the cultured, proliferating human retinal pigment epithelial (RPE) cells. However, little is known about CD95 on the non-proliferating RPE cells. In this study, human RPE cells were cultured up to 4 weeks after they reached the confluence, to simulate the non-proliferating RPE cells in situ. There was no significant difference in CD95 expression on the cell surface between the predominantly proliferating, preconfluent cells and predominantly non-proliferating, postconfluent cells in flow cytometric assays. However, unlike proliferating cells, no cellular death occurred in the predominantly non-proliferating cells after the treatment of agonistic anti-CD95 antibody with cycloheximide, pretreated with interferon-gamma. Our results suggest that the CD95/CD95L system probably plays a physiologic role in vivo to remove the abnormal, proliferating RPE cells, and factors other than the surface expression of CD95 may determine the sensitivity to the CD95 signals.
Antigens, CD95/*pharmacology ; Apoptosis/*physiology ; Cells, Cultured ; Human ; Pigment Epithelium of Eye/cytology/*drug effects/*physiology ; Sensitivity and Specificity