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경식도 심초음파상의 흉부대동맥 죽상경화증의 관찰과 그 의의
이만영(Man Young Lee),정욱성(Wook Seong Chung),승기배(Kie Bae Seung),김종진(Jong Jin Kim),전승석(Seung Seok Chun),노태호(Tai Ho Rho),채장성(Jang Seong Chae),김재형(Jae Hyung Kim),홍순조(Soon Jo Hong),최규보(Kyu Bo Choi) 대한내과학회 1994 대한내과학회지 Vol.46 No.6
Objectives: Atherosclerosis has been suggested to be a generalized disease process. Thus, the pressence of an atherosclerotic cardiovascular event can predict the occurrence of a subsequent event located elsewhere. From a preventive point of view, it would be desirable to have an indicator before the clinical appearance of disease. Ultrasonography has the necessary accuracy, precision, and repeatability to serve as measurement tools of quantitative imaging of large vessel atherosclerosis. Aorta can be examined with relative ease using transesophageal echocardiography. We performed this study to find the prevalence of atherosclerosis of thoracic aorta using transesophageal echocardiography and also to evaluate the association of known atherosclerotic risk factors with its development and clinical significance. Methods: We evaluated the descending thoracic aorta of 548 patients (male 248, female 300: mean age 52±15 yrs), those underwent clinically indicated transesophageal echocardiography. We classified the patients into 4 groups: normal group (270 pts), thin atherosclerotic group (159 pts), thick athrosclerotic group (109 pts) and thick protruded plaque group (17 pts) according to the morphology and thickness of atherosclerotic plaque. Results: 1) Transesophageal echocardiography is a valuable diagnostic tool to assess the severity of atherosclerosis in thoracic aorta and the atherosclerosis of variable degree was commonly encountered in 278 patients of total 548 study subjects. 2) Among the well known atherosclerotic risk factors, the age and the prescnece of hypertension were most strongly related to atherosclerotic process of thoracic aorta. 3) The relations between the atherosclerosis of descending thoracic aorta and the coronany artery disease and cerebral infaction were thought to be weak and need further study. Conclusion: Atherosclerotic lesion of thoracic aorta could be accurately assessed by transesophageal echocardiography. There were close associations between age and hypertension as atherosclerotic risk factors and the atherosclerotic progression of thoracic aorta. Although there are somewhat weak relationships between the degree of atherosclerosis of thoracic aorta and other cardiovascular disease. To elucidate the precise relationship needs further study.