• Am. J. Hypertens. · Feb 2012

    Selective serotonin reuptake inhibitors and intraoperative blood pressure.

    • Ingrid M M van Haelst, Wilton A van Klei, Hieronymus J Doodeman, Cor J Kalkman, and Toine C G Egberts.
    • Department of Clinical Pharmacy, Medical Center Alkmaar, the Netherlands. i.van.haelst@mca.nl
    • Am. J. Hypertens. 2012 Feb 1;25(2):223-8.

    BackgroundThe influence of selective serotonin reuptake inhibitors (SSRIs) on blood pressure is poorly understood. We hypothesized that if SSRIs have an influence on blood pressure, this might become manifest in changes in intraoperative blood pressure. We aimed to study the association between perioperative use of SSRIs and changes in intraoperative blood pressure by measuring the occurrence of intraoperative hyper- and hypotension.MethodsWe conducted a retrospective observational follow-up study among patients who underwent elective primary total hip arthroplasty. The index group included users of SSRIs. The reference group included a random sample (ratio 1:3) of nonusers of an antidepressant agent. The outcome was the occurrence of intraoperative hypo- and hypertensive episodes (number, mean and total duration, and area under the curve (AUC)). The outcome was adjusted for confounding factors using regression techniques.ResultsThe index group included 20 users of an SSRI. The reference group included 60 nonusers. Users of SSRIs showed fewer intraoperative hypotensive episodes, a shorter mean and total duration, and a smaller AUC when compared to the reference group. After adjustment for confounders, SSRI use was associated with a significantly shorter total duration of hypotension: mean difference of -29.4 min (95% confidence interval (CI) -50.4 to -8.3). Two users of an SSRI and two patients in the reference group had a hypertensive episode.ConclusionsContinuation of treatment with SSRIs before surgery was associated with a briefer duration of intraoperative hypotension.

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