title: Unoperated thoracic aortic aneurysms: survival rates of the patients and determinants of prognosis.
abstract: The purpose of this study was to evaluate the long-term prognosis of unoperated thoracic aortic aneurysms, and to detect the risk factors which determine the prognosis of unoperated patients. The subjects were 52 unoperated patients with 58 thoracic aortic aneurysms (22 of the ascending aorta, 36 of the descending aorta or the aortic arch) and 38 with abdominal aortic aneurysms. The survival rates of the patients with ascending aortic aneurysms at 3 years and 5 years and those of the patients with descending aortic aneurysms at 5 years were significantly higher than those of the patients with abdominal aortic aneurysms. The risk factors for rupture of thoracic aortic aneurysms were the large size of aneurysms and non-management by the cardiologist and the risk factors for death unrelated to the aneurysms were patient age, male gender and non-management by the cardiologist.
authors.affiliation: Third Department of Internal Medicine, Chiba University School of Medicine, Japan.
authors.forename: Y
authors.initials: Y
authors.lastname: Masuda
authors.forename: K
authors.initials: K
authors.lastname: Takanashi
authors.forename: J
authors.initials: J
authors.lastname: Takasu
authors.forename: Y
authors.initials: Y
authors.lastname: Aoyagi
authors.forename: N
authors.initials: N
authors.lastname: Morooka
authors.forename: S
authors.initials: S
authors.lastname: Watanabe
authors.forename: Y
authors.initials: Y
authors.lastname: Inagaki
mesh_terms: D000367:Age Factors; D000368:Aged; D000704:Analysis of Variance; D017544:Aortic Aneurysm, Abdominal / Q000401:mortality / Q000628:therapy; D017545:Aortic Aneurysm, Thoracic / Q000401:mortality* / Q000473:pathology / Q000628:therapy; D001019:Aortic Rupture / Q000401:mortality*; D016009:Chi-Square Distribution; D005260:Female; D006801:Humans; D016015:Logistic Models; D008297:Male; D008875:Middle Aged; D015999:Multivariate Analysis; D011379:Prognosis; D012307:Risk Factors; D012737:Sex Factors; D016019:Survival Analysis; D015996:Survival Rate