Early adjunctive methylene blue in patients with septic shock: a randomized controlled trial

医学 中止 感染性休克 不利影响 随机对照试验 麻醉 安慰剂 败血症 拯救脓毒症运动 机械通风 外科 内科学 严重败血症 替代医学 病理
作者
Miguel Ibarra‐Estrada,Eduardo Kattan,Pável E Aguilera-González,Laura Sandoval-Plascencia,Uriel Rico-Jauregui,Carlos A. Gómez-Partida,Iris Xochitl Ortiz-Macias,José Arnulfo Lòpez Pulgarín,Quetzalcóatl Chávez-Peña,Julio Mijangos,Guadalupe Aguirre-Ávalos,Glenn Hernández
出处
期刊:Critical Care [Springer Nature]
卷期号:27 (1) 被引量:43
标识
DOI:10.1186/s13054-023-04397-7
摘要

Methylene blue (MB) has been tested as a rescue therapy for patients with refractory septic shock. However, there is a lack of evidence on MB as an adjuvant therapy, its' optimal timing, dosing and safety profile. We aimed to assess whether early adjunctive MB can reduce time to vasopressor discontinuation in patients with septic shock.In this single-center randomized controlled trial, we assigned patients with septic shock according to Sepsis-3 criteria to MB or placebo. Primary outcome was time to vasopressor discontinuation at 28 days. Secondary outcomes included vasopressor-free days at 28 days, days on mechanical ventilator, length of stay in ICU and hospital, and mortality at 28 days.Among 91 randomized patients, forty-five were assigned to MB and 46 to placebo. The MB group had a shorter time to vasopressor discontinuation (69 h [IQR 59-83] vs 94 h [IQR 74-141]; p < 0.001), one more day of vasopressor-free days at day 28 (p = 0.008), a shorter ICU length of stay by 1.5 days (p = 0.039) and shorter hospital length of stay by 2.7 days (p = 0.027) compared to patients in the control group. Days on mechanical ventilator and mortality were similar. There were no serious adverse effects related to MB administration.In patients with septic shock, MB initiated within 24 h reduced time to vasopressor discontinuation and increased vasopressor-free days at 28 days. It also reduced length of stay in ICU and hospital without adverse effects. Our study supports further research regarding MB in larger randomized clinical trials. Trial registration ClinicalTrials.gov registration number NCT04446871 , June 25, 2020, retrospectively registered.
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