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2012, Number 6

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Rev Mex Pediatr 2012; 79 (6)

Maternal smoking on blood pressure in the newborns

Rojas-Cerda LG, Iglesias-Leboreiro J, Bernárdez-Zapata I, Rendón-Macías ME

Language: Spanish
References: 12
Page: 264-270
PDF size: 119.67 Kb.


ABSTRACT

Objective: To determine the possible correlation between maternal smoking during pregnancy and the changes it produces on systemic blood pressure in newborn during their first hours of life.
Patients: Newborns without malformations, sibling of mothers with gestational smoking history (N = 57) and nonsmokers (N = 140).
Location: General Pediatric Hospital.
Design: Cohort study.
Procedure: Measurement of systemic blood pressure (systolic-diastolic-media) at 24, 48 and 72 hours of life by oscillometric method.
Results: The newborns of smoking mothers had blood pressures at 24 hours of life lower [systolic 60 ± 2 (standard error) versus 63 ± 1 mmHg, p = 0.24; mean 38.5 ± 1.8 versus 53.6 ± 0.9, p = 0.007; and diastolic 32.5 ± 1.7 versus 36.5 ± 1.1, p = 0.04] than their contrapart controls. At the 48h their pressures matched to the control group. After adjusting for confounders, gestational mother smoking reduced still as independent factor to reduce the mean arterial pressure during the first 24 hours of life.
Conclusions: Fetal exposure to cigarette smoke components may alter your blood pressure in the transition to extrauterine life.


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