title: [Not Available].
abstract: Hyponatremia is a rare side effect described in the product characteristics of proton pump inhibitors (PPIs). Hyponatremia in the elderly (>65years) was assessed in patients with exposure to PPIs for at least one year compared to controls not exposed to PPIs counterparts. Included 145 patients, twenty-four patients (16.6%) had moderate hyponatremia ([120-134] mEq/L). Forty-eight patients (33.1%) were treated with PPIs. In the end, 31.3% [18.7%-46.3%] of the treated population for more than a year by PPI suffered moderate hyponatremia against only 9.3% [14.3%-16.9%] in the rest of the population, giving an odds ratio of 4.4 ([1.8-11.1], p=0.001). The relationship between hyponatremia dose was not significant (R(2)=0.05, p=0.74). By our study, we show that the risk of moderate hyponatremia is increased by chronic use of PPI in the elderly population. We also specify a notion of prevalence between 18.7% and 46.3%.
authors.affiliation: CHU de Caen, Service de Recherche clinique, Caen, France. Electronic address: peyrosaintpaul-l@chu-caen.fr.
authors.forename: Laure Peyro Saint
authors.initials: LP
authors.lastname: Paul
authors.affiliation: Hôpital de Carentan, Carentan, France.
authors.forename: Jocelyne
authors.initials: J
authors.lastname: Martin
authors.affiliation: CHU de Caen, Service de Recherche clinique, Caen, France.
authors.forename: Marie
authors.initials: M
authors.lastname: Buon
authors.affiliation: CHU de Caen, Service de Recherche clinique, Caen, France.
authors.forename: Cathy
authors.initials: C
authors.lastname: Gaillard
authors.affiliation: CHU de Caen, Service de Pharmacologie, Caen Cedex, France.
authors.forename: Sophie
authors.initials: S
authors.lastname: Fedrizzi
authors.affiliation: CHU de Caen, Service de Pharmacologie, Caen Cedex, France.
authors.forename: Brigitte
authors.initials: B
authors.lastname: Mosquet
authors.affiliation: CHU de Caen, Service de Pharmacologie, Caen Cedex, France.
authors.forename: Antoine
authors.initials: A
authors.lastname: Coquerel
keywords: PPI; Tramadol; adverse-drug-reaction; effet indésirable médicamenteux; elderly; hyponatremia; hyponatrémie; inhibiteurs de la pompe à protons; sujet âgé; tramadol