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The relationship between cephalometric carotid artery calcification and Framingham Risk Score profile in patients with obstructive sleep apnea.
MedLine Citation:
PMID:  23208741     Owner:  NLM     Status:  Publisher    
PURPOSE: The morbidity rate of arteriosclerosis becomes clinically manifested as acute cardiovascular events. In the progress of atherosclerosis, the carotid artery calcifies and sometimes appears as a calcified mass on a cephalometric radiograph. This study was designed to evaluate cardiovascular risks according to the Framingham Risk Score (FRS) between subjects with and without visible carotid artery calcification on a cephalogram. METHODS: Subjects diagnosed with obstructive sleep apnea (OSA) were divided into two groups according to whether or not calcification was visible on a cephalometric radiograph in the carotid artery area, and the characteristic differences between the two groups were analyzed. The evaluated variables included age, BMI, apnea-hypopnea index (AHI), SpO(2), ESS, blood pressure, medication history, diabetes mellitus (DM), drinking, smoking, and lipid-related measurements. FRSs for stroke, general cardiovascular disease (GCD), and coronary heart disease (CHD) were calculated. Statistical analyses were performed (SPSS 18.0) with significance defined as a two-tailed p value less than 0.05. RESULTS: A total of 811 subjects completed the data collection (727 males, age 53.0 ± 12.5 years, AHI 31.7 ± 22.6, times/h). From FRSs, probabilities of a GCD, stroke, and CHD within 10 years were 16.0 ± 9.7, 9.8 ± 6.7, and 11.9 ± 8.3 %, respectively. Some 84 subjects exhibited calcification in the carotid arterial area. Calcification subjects were higher GCD risk and older than subjects who had no identified calcification (20.3 ± 10.1 vs 15.6 ± 20.3 %, p = 0.013, 58.8 ± 11.4 vs. 52.3 ± 12.5 years, p < 0.001). Although there is no significant difference in OSA-related variables and FRSs, subjects with visible calcifications have higher prevalence of high blood pressure medication and DM (p < 0.01). CONCLUSION: While the presence of a calcified mass on a cephalometric radiograph is not diagnostic of atherosclerosis, this information indicates some cardiovascular risk.
Hiroko Tsuda; Yasutaka Moritsuchi; Fernanda R Almeida; Alan A Lowe; Toru Tsuda
Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2012-12-4
Journal Detail:
Title:  Sleep & breathing = Schlaf & Atmung     Volume:  -     ISSN:  1522-1709     ISO Abbreviation:  Sleep Breath     Publication Date:  2012 Dec 
Date Detail:
Created Date:  2012-12-4     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9804161     Medline TA:  Sleep Breath     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Division of General Oral Care, Kyushu University Hospital, 3-1-1 Maidashi Higashi-ku, Fukuoka, Japan,
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