• Nathan Julian, Samuel Gaugain, Marc-Antoine Labeyrie, Romain Barthélémy, Sebastien Froelich, Emmanuel Houdart, Alexandre Mebazaa, and Benjamin G Chousterman.
• Université de Paris, INSERM, U942 MASCOT, Paris F-75006, France; Department of Anesthesia and Critical Care Medicine, AP-HP, Hôpital Lariboisière, Paris F-75010, France. Electronic address: nathan.julian@aphp.fr.
• J Crit Care. 2024 Apr 4; 82: 154807154807.

PurposeDelayed cerebral ischemia (DCI) is a severe subarachnoid hemorrhage (SAH) complication, closely related to cerebral vasospasm (CVS). CVS treatment frequently comprises intravenous milrinone, an inotropic and vasodilatory drug. Our objective is to describe milrinone's hemodynamic, respiratory and renal effects when administrated as treatment for CVS.MethodsRetrospective single-center observational study of patients receiving intravenous milrinone for CVS with systemic hemodynamics, oxygenation, renal disorders monitoring. We described these parameters' evolution before and after milrinone initiation (day - 1, baseline, day 1 and day 2), studied treatment cessation causes and assessed neurological outcome at 3-6 months.ResultsNinety-one patients were included. Milrinone initiation led to cardiac output increase (4.5 L/min [3.4-5.2] at baseline vs 6.6 L/min [5.2-7.7] at day 2, p < 0.001), Mean Arterial Pressure decrease (101 mmHg [94-110] at baseline vs 95 mmHg [85-102] at day 2, p = 0.001) norepinephrine treatment requirement increase (32% of patients before milrinone start vs 58% at day 1, p = 0.002) and slight PaO2/FiO2 ratio deterioration (401 [333-406] at baseline vs 348 [307-357] at day 2, p = 0.016). Milrinone was interrupted in 8% of patients. 55% had a favorable outcome.ConclusionIntravenous milrinone for CVS treatment seems associated with significant impact on systemic hemodynamics leading sometimes to treatment discontinuation.Copyright © 2024 The Authors. Published by Elsevier Inc. All rights reserved.

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