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Effects of Smoking Exposure in Infants on Gastroesophageal Reflux as a Function of the Sleep-Wakefulness State

Abstract : Objective To determine whether perinatal smoking exposure is associated with gastroesophageal reflux (GER)-related changes in sleep-wakefulness states in neonates. Study design Thirty-one neonates. referred for the investigation of suspected GER, were recruited and underwent multichannel impedance-pH monitoring and synchronized 8- to 12-hour polysomnography. The infants' exposure to tobacco smoke was estimated by means of a urine cotinine assay. The total number. frequency (h(-1)), and mean duration (minutes) of GER-pH (reflux events detected by the pH electrode only) and GER-imp (reflux events with bolus movement detected by impedance) events were determined. Intergroup differences (smokingexposed group vs nonexposed group) were probed with nonparametric. unpaired Mann-Whitney U tests. A chi(2) test was used to assess a possible intergroup difference in bolus retrograde migration during GER-imp events. Results According to the urine cotinine assay, 21 of the 31 neonates had been exposed to cigarette smoke during the perinatal period. The number (and frequency) of GER-imp was significantly greater (P= .016) in the exposed group (29 [0-90]) than in the nonexposed group (12 [2-35]). Migration of the esophageal bolus from the distal segment to the most proximal segment was significantly more frequent (P= .016) in the exposed group (83% of GER) than in the nonexposed group (41%). The GER pattern associated with smoking exposure was particularly obvious during Rapid eye movement sleep. Conclusions The more frequent occurrence and greater proximal migration of GER-imp in the smoking-exposed group (especially during rapid eye movement sleep) may have clinical relevance. Smoking exposure is a preventable risk factor for limiting the occurrence of GER in neonates.
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https://hal-u-picardie.archives-ouvertes.fr/hal-03544614
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Soumis le : mercredi 26 janvier 2022 - 17:57:51
Dernière modification le : vendredi 25 mars 2022 - 18:12:15

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Djamal Djeddi, Erwan Stephan, Andre Leke, Mohamed Ammari, Stéphane Delanaud, et al.. Effects of Smoking Exposure in Infants on Gastroesophageal Reflux as a Function of the Sleep-Wakefulness State. JOURNAL OF PEDIATRICS, 2018, 201, pp.147-153. ⟨10.1016/j.jpeds.2018.05.057⟩. ⟨hal-03544614⟩

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