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- W2052544981 abstract "Objectives: To compare the ophthalmic artery (OA) perfusion of pregnant smokers and nonsmokers by Doppler indexes. Correlate these with the interval of last cigarette, cigarettes per day, years smoking and carbon monoxide expired (COex).Method: Transversal study involving 70 pregnant smokers divided into 33 pregnant who smoked until 2 h: A group (AG) and B group (BG): 37, who smoked between 2 and 24 h before test. Control group (CG) was composed of 51 pregnant nonsmokers. Doppler indexes were assessed: PSV (Peak Systolic Velocity), EDV (End Diastolic Velocity), PI (Pulsatility Index), RI (Resistance Index) and PR (Peak Ratio). Groups were compared using ANOVA, Kruskal–Wallis test, Student’s t test, Mann–Whitney and Pearson’s correlation coefficient, whereas p < 0.05.Results: RI and PI were higher (p < 0.01) and PSV and EDV were lower (p < 0.05) in B group compared to other groups. A group presented higher PR (p < 0.01) compared to control. AG presented years of smoking, cigarettes per day, COex greater than BG and lower interval of last cigarette than BG.Conclusions: The OA in pregnant smokers shows a biphasic pattern of perfusion correlated with the time of consumption of the last cigarette. There are signs of vasoconstriction and hypoperfusion to tobacco exposure between 2 and 24 and hyperperfusion in A Group compared to B Group." @default.
- W2052544981 created "2016-06-24" @default.
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- W2052544981 date "2013-06-10" @default.
- W2052544981 modified "2023-10-09" @default.
- W2052544981 title "Doppler study and evidences of perfusion changes in the ophthalmic artery of pregnant smokers" @default.
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- W2052544981 doi "https://doi.org/10.3109/14767058.2013.798285" @default.
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