Document Detail

Growth rate of affected aorta in patients with type B partially closed aortic dissection.
MedLine Citation:
PMID:  19766816     Owner:  NLM     Status:  MEDLINE    
BACKGROUND: Our purpose was to evaluate the growth rate (GR) of the affected aorta and to clarify whether a partially closed false lumen can affect aortic enlargement in patients with type B double-barrelled aortic dissection (AD). METHODS: Seventy-one patients (mean age, 64.4 years) who had experienced AD were enrolled in this study. Regular follow-up computed tomography studies (mean, 48.9 months) were performed. During the follow-up period, aortic diameter was measured with computed tomography. The fastest GR was calculated. RESULTS: Based on final computed tomography findings, the patients were divided into three groups: those with completely closed false lumens (n = 8), those with partially closed false lumens (n = 20), and those with patent false lumens (n = 43). Among the patients with partially closed false lumens, 3 of 20 (15%) had a sac formation type and 17 (85%) had a non-sac formation type. The mean fastest GRs for groups with a completely closed false lumen, partially closed false lumen, and patent false lumen were -0.2 +/- 0.6, 4.0 +/- 4.3, and 4.9 +/- 4.5 mm/year, respectively. The differences among the three groups were statistically significant (p = 0.0149). In the partially closed false lumen group, the mean fastest GRs of the sac and non-sac formation types were 12.7 +/- 1.1 and 2.6 +/- 2.7 mm/year, respectively; this difference is statistically significant (p = 0.007). CONCLUSIONS: Affected aortas with partially closed false lumens do not exhibit the highest GR. The status of a partially closed false lumen is not a significant risk factor for enlargement; however, careful follow-up study is needed whenever the sac formation type of partially closed false lumen is identified.
Eijun Sueyoshi; Ichiro Sakamoto; Masataka Uetani
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Publication Detail:
Type:  Comparative Study; Journal Article; Multicenter Study    
Journal Detail:
Title:  The Annals of thoracic surgery     Volume:  88     ISSN:  1552-6259     ISO Abbreviation:  Ann. Thorac. Surg.     Publication Date:  2009 Oct 
Date Detail:
Created Date:  2009-09-21     Completed Date:  2009-10-08     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  15030100R     Medline TA:  Ann Thorac Surg     Country:  Netherlands    
Other Details:
Languages:  eng     Pagination:  1251-7     Citation Subset:  AIM; IM    
Department of Radiology, Nagasaki University School of Medicine, Nagasaki, Japan.
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MeSH Terms
Aged, 80 and over
Aneurysm, Dissecting / physiopathology,  radiography,  surgery*
Aorta, Abdominal / growth & development*,  radiography
Aorta, Thoracic / growth & development*,  radiography
Aortic Aneurysm, Abdominal / physiopathology,  radiography,  surgery*
Aortic Aneurysm, Thoracic / physiopathology,  radiography,  surgery*
Follow-Up Studies
Middle Aged
Retrospective Studies
Tomography, Spiral Computed
Treatment Outcome
Vascular Surgical Procedures / methods*
Comment In:
Ann Thorac Surg. 2009 Oct;88(4):1257   [PMID:  19766817 ]

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