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Examining the brachial artery reactivity curve measured by B-mode ultrasound in the Buffalo Cardio-Metabolic Occupational Police Stress (BCOPS) Pilot Study.

Authors
Joseph-PN; Dorn-J; Violanti-JM; Andrew-ME; Riley-WA
Source
J Vasc Ultrasound 2005 Dec; 29(4):199-206
NIOSHTIC No.
20031305
Abstract
Brachial artery reactivity was assessed in the Buffalo Cardio-Metabolic Occupational Police Stress (BCOPS) Pilot Study using B-mode ultrasound. Carotid artery intima-media thickness (CIMT), a known subclinical predictor of cardiovascular disease, also was examined in relation to brachial artery reactivity. A continuous scan was performed on the artery for 8 min (1 min of baseline, 4 min of cuff inflation at 40 mmHg greater than systolic pressure, 3 min after cuff release). The sample for analysis (n = 78; 43 men, 35 women) consisted of active-duty police officers from a larger sample in the BCOPS pilot study. Means and standard deviations (SDs) stratified by gender were calculated, along with Pearson's correlations between brachial variables, and with CIMT. Arterial diameters (baseline, pre-cuff release, peak) were significantly different (p < 0.001) between men and women. Peak arterial dilation occurred at 50.77 21.97 sec (49.67 20.22 cardiac cycles) after cuff deflation in men, and 44.66 24.07 sec (44.57 20.36 cardiac cycles) after cuff deflation in women. Mean common carotid artery IMT and mean maximum IMT of all carotid sites were significantly correlated (p < 0.01) in men (r = 0.691) and women (r = 0.450). Brachial reactivity measures were inversely correlated with CIMT in women, and in contrast, positively correlated in men.
Keywords
Cardiovascular-disease; Cardiovascular-function; Cardiovascular-function-tests; Cardiovascular-system; Cardiovascular-system-disease; Cardiovascular-system-disorders; Humans; Police-officers; Emergency-responders
Contact
Parveen Nedra Joseph, Department of Social and Preventive Medicine, 270 Farber Hall, State University of New Yorkat Buffalo, Buffalo, NY 14214
Publication Date
20051201
Document Type
Journal Article
Funding Type
Contract
Fiscal Year
2006
NTIS Accession No.
NTIS Price
Identifying No.
Contract-HELD01B0088
Issue of Publication
4
ISSN
1544-3167
NIOSH Division
HELD
Source Name
Journal for Vascular Ultrasound
State
WV; NY
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