Effect of magnesium sulphate and milrinone on cerebral vasospasm after aneurysmal subarachnoid hemorrhage: a randomized study

Rabie Soliman; Gomaa Zohry

doi:10.1016/j.bjane.2018.09.004

Scientific Article

Effect of magnesium sulphate and milrinone on cerebral vasospasm after aneurysmal subarachnoid hemorrhage: a randomized study

Efeitos do sulfato de magnésio e da milrinona sobre o vasoespasmo cerebral após hemorragia subaracnoidea por aneurisma: estudo randômico

Rabie Soliman; Gomaa Zohry

http://dx.doi.org/10.1016/j.bjane.2018.09.004 Braz J Anesthesiol, vol.69, n1, p.64-71, 2019

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Abstract

Abstract Background: Aneurysmal subarachnoid hemorrhage is an important cause of premature death and disability worldwide. Magnesium sulphate is shown to have a neuroprotective effect and it reverses cerebral vasospasm. Milrinone is also used in the treatment of cerebral vasospasm. The aim of the present study was to compare the effect of prophylactic magnesium sulphate and milrinone on the incidence of cerebral vasospasm after subarachnoid hemorrhage. Methods: The study included 90 patients with aneurysmal subarachnoid hemorrhage classified randomly (by simple randomization) into two groups: magnesium sulphate was given as an infusion of 500 mg.day-1 without loading dose for 21 days. Group B: milrinone was given as an infusion of 0.5 µg.kg-1.min-1 without loading dose for 21 days. The cerebral vasospasm was diagnosed by mean cerebral blood flow velocity in the involved cerebral artery (mean flow velocity ≥ 120 cm.s-1), neurological deterioration by Glasgow coma scale, or angiography (the decrease in diameter of the involved cerebral artery >25%). Results: The mean cerebral blood flow velocity decreased significantly in the magnesium group compared to milrinone group through Day 7, Day 14 and Day 21 (p < 0.001). The incidence of cerebral vasospasm decreased significantly with magnesium compared to milrinone (p = 0.007). The Glasgow coma scale significantly improved in the magnesium group compared to milrinone group through Day 7, Day 14 and Day 21 (p = 0.036, p = 0.012, p = 0.016, respectively). The incidence of hypotension was higher with milrinone than magnesium (p = 0.012). Conclusions: The incidence of cerebral vasospasm after aneurysmal subarachnoid hemorrhage was significantly lower and Glasgow coma scale significantly better with magnesium when compared to milrinone. Milrinone was associated with a higher incidence of hypotension and requirement for dopamine and norepinephrine when compared to magnesium.

Keywords

Magnesium sulphate, Milrinone, Aneurysmal subarachnoid hemorrhage, Cerebral vasospasm

Resumo

Resumo Justificativa: A hemorragia subaracnoidea por aneurisma é uma importante causa de morte prematura e de incapacidade em todo o mundo. O sulfato de magnésio mostra um efeito neuroprotetor e reverte o vasoespasmo cerebral. A milrinona também é usada no tratamento de vasoespasmo cerebral. O objetivo do presente estudo foi comparar o efeito profilático do sulfato de magnésio e da milrinona sobre a incidência de vasoespasmo cerebral após hemorragia subaracnoidea. Métodos: O estudo incluiu 90 pacientes com hemorragia subaracnoidea por aneurisma randomicamente distribuídos (randomização simples) em dois grupos: sulfato de magnésio foi administrado em infusão de 500 mg.dia-1 sem dose de ataque durante 21 dias. O Grupo B recebeu milrinona em infusão de 0,5 µg.kg-1·min-1 sem dose de ataque durante 21 dias. O vasoespasmo cerebral foi diagnosticado pela velocidade média do fluxo sanguíneo cerebral na artéria cerebral envolvida (velocidade média do fluxo ≥ 120 cm.s-1), a deterioração neurológica por escala de coma de Glasgow ou angiografia (diminuição do diâmetro da artéria cerebral envolvida > 25%). Resultados: A velocidade média do fluxo sanguíneo cerebral diminuiu significativamente no grupo magnésio em comparação com o grupo milrinona nos dias 7, 14 e 21 (p < 0,001). A incidência de vasoespasmo cerebral diminuiu significativamente com o magnésio em comparação com milrinona (p = 0,007). A escala de coma de Glasgow melhorou significativamente no grupo magnésio em comparação com o grupo milrinona nos dias 7, 14 e 21 (p = 0,036, p = 0,012, p = 0,016, respectivamente). A incidência de hipotensão foi maior com milrinona do que com magnésio (p = 0,012). Conclusões: A incidência de vasoespasmo cerebral após hemorragia subaracnoidea por aneurisma foi significativamente menor e a escala de coma de Glasgow significativamente melhor com magnésio em comparação com milrinona. A milrinona foi associada a uma maior incidência de hipotensão e necessidade de dopamina e norepinefrina em comparação com o magnésio.

Palavras-chave

Sulfato de magnésio, Milrinona, Hemorragia subaracnoidea por aneurisma, Vasoespasmo cerebral

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Effect of magnesium sulphate and milrinone on cerebral vasospasm after aneurysmal subarachnoid hemorrhage: a randomized study

Efeitos do sulfato de magnésio e da milrinona sobre o vasoespasmo cerebral após hemorragia subaracnoidea por aneurisma: estudo randômico

Rabie Soliman; Gomaa Zohry

Abstract

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