Document Detail

Association of aortic flow propagation velocity with ankle/brachial blood pressure-index in patients with hypertension: an observational study.
MedLine Citation:
PMID:  22877895     Owner:  NLM     Status:  Publisher    
OBJECTIVE: Endothelial dysfunction is considered the first stage in the development of atherosclerosis and assessed by flow-mediated dilatation (FMD) and aortic flow velocity propagation (AVP). Ankle-brachial index (ABI) is used to assess peripheral arterial disease and is associated with FMD but the relationship between ABI and AVP is unknown. In this study, we aimed to search the association between AVP, and ABI in patients with newly diagnosed hypertension. METHODS: Sixty-eight patients with newly diagnosed hypertension and 34 healthy subjects were enrolled in the cross-sectional observational study. The maximum ankle arterial pressures were divided by the maximum of the brachial arterial pressures to calculate the ABI. AVP was calculated from dividing the distance between points corresponding to the begin-ning and end of the propagation slope, to the duration between corresponding time points proximally to descending aorta. Statistical analysis was performed using Student t-test, Chi-square test, Pearson correlation and linear regression analyses. RESULTS: Age and gender of both groups were similar. Compared to control group E deceleration time of early diastolic flow velocity (184.0±32.2 vs. 217.1±38.6 msec, p<0.001), isovolumic relaxation time (95.5±19.4 vs. 105.7±18.1 msec, p<0.001) and body mass index ( 25.6±5.1 vs. 27.5±3.8 kg/m2, p=0.044) values were significantly higher, while ABI (1.08±0.07 vs. 1.14±0.07, p=0.001) and AVP (54.97±9.3 vs. 69.17±10.8 cm/sec, p=0.001) values were significantly lower in hypertensive patients. There was a significant correlation between AVP and ABI (r=0.279, p=0.005). Both ABI and AVP were independent predictors of hypertension (OR - 0.353, 95%CI 0.151-0.826, p=0.02 and OR - 0.133, 95%CI 0.0502-0.35, p=0.001, respectively). CONCLUSION: Our data indicate that in patients with isolated hypertension AVP and ABI decrease. We also conclude that AVP is directly associated with ABI.
Ahmet Güne; Unal Güntekin; Sema Y Ld Z; Bedri Caner Kaya; Ethem Deveci; Zekeriya Kaya; Yusuf Sezen; Asuman Biçer Ye Ilay; Recep Demirba
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2012-8-08
Journal Detail:
Title:  Anadolu kardiyoloji dergisi : AKD = the Anatolian journal of cardiology     Volume:  -     ISSN:  1308-0032     ISO Abbreviation:  Anadolu Kardiyol Derg     Publication Date:  2012 Aug 
Date Detail:
Created Date:  2012-8-10     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  101095069     Medline TA:  Anadolu Kardiyol Derg     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Clinic of Cardiology, Urfa Heart Center, ?anl?urfa-Turkey.
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