BACKGROUND: Not rarely we can find young people with acute myocardial infarction(AMI), many studies revealed they have fewer risk factors and less severe coronary angiographic abnormalities than middle and old aged group. METHODS: We studied clinical characteristics and coronary angiographic findings of 5 young men with AMI treated at Masan Koryo General Hospital from June 1986 June 1992. RESULTS: The age ranged between 19 and 32 years(mean 25.4). They had no other risk factors except cigrarette smoking(4 out of 5). Their coronary angiograms revealed no significant lesion in each infarct related artery. After discharge, all patient remained asymptomatic. CONCLUSION: AMI in young man might be related with cigarette smoking, and coronary artery spasm and/or thrombosis may play a significant role in its pathogenesis.
Arteries ; Coronary Vessels ; Hospitals, General ; Humans ; Male ; Myocardial Infarction* ; Risk Factors ; Smoking ; Spasm ; Thrombosis

It has been known that the size of arterial diameter during growth in primates is closely dependent on blood flow. Flow induced arterial size can be influenced by contractile or structual characters of vascular smooth muscle cells. Furthermore it had been confirmed through experimental study that vascular endothelium releases vasoactive substances which adjust smooth muscle tone, and could detect shear stress on the vascular wall by its direct contact with luminal flow. The authors tried to prove it through the angiographic measurement of the major vessel sizes in cerebrovascular diseases with changed blood flow. We measured the major vessel sizes of 36 cases of cerebrovascular diseases:arteriovenous malformation in 14 cases, cerebral infarction in 8, cerebral hemiatrophy in 6 moyamoya disease 5, occlusion of the internal carotid artery in 2, and carotid-cavernous fistula in 1, which may influence cerebral blood flow, on angiography under the same circumstances. Results are as the followings: 1) In the cases of arteriovenous malformation and carotid-cavernous fistula, all of the major vessel sizes of the lesion wite were increased and all became decreased postoperatively. 2) In the cases of major vessel occlusion and cerebral hemiatrophy, the major vessel size of the lesion site was smaller than that of the normal site. 3) In the cases of moyamoya disease, there was no definite size different between both ICA sizes. In conclusion, the change in cerebral blood flow is a determinant factor of the major vessel sizes in the cases of cerebrovascular disorders which an influence cerebral blood flow.
Angiography ; Arteriovenous Malformations ; Carotid Artery, Internal ; Cerebral Infarction ; Cerebrovascular Disorders ; Endothelium, Vascular ; Fistula ; Moyamoya Disease ; Muscle, Smooth ; Muscle, Smooth, Vascular ; Phenobarbital ; Primates

PURPOSE: To evaluate the usefulness of the angiographic embolization for the treatment of postoperative bleeding. MATERIALS AND METHODS: Six patients who suffered massive postoperative bleeding underwent angiographic embolization from March 1998 to June 1999. The initial diagnosis was femoral fractures in 4 patients, infected total hip arthroplasty in a patient, and open humerus fracture in a patient. When angiography revealed arterial tear, embolization was performed. The authors evaluated the effectiveness and the complication of angiographic embolization. RESULT: Five patients had arterial tear and one patient had diffuse bleeding from the granulation tissue. Angiographic embolization was performed in all patients. There were 3 cases of injury of the deep femoral artery, a case of injury of a branch of the subclavian artery, and a case of injury of the superior gluteal artery. After the procedure swelling subsided and the amount of transfusion diminished in all patients. There was no complication related to angiographic embolization. CONCLUSION: When there is suspicion of arterial injury after the operation, angiographic embolization can be used to confirm arterial injury and to control bleeding.
Angiography ; Arteries ; Arthroplasty, Replacement, Hip ; Diagnosis ; Femoral Artery ; Femoral Fractures ; Granulation Tissue ; Hemorrhage* ; Humans ; Humerus ; Subclavian Artery