Midodrine use in critically ill patients: a narrative review

Area of Science:

• Pharmacology
• Critical Care Medicine
• Clinical Trials

Background:

• Midodrine is a peripherally acting oral alpha-agonist with broad physiological effects.
• Approved for orthostatic hypotension, its use has expanded to off-label indications, particularly in intensive care.
• Conflicting evidence exists regarding midodrine's effectiveness in critically ill populations.

Purpose of the Study:

• To provide a comprehensive overview of midodrine use in critical care.
• To highlight unanswered questions regarding patient selection, dosing, timing, and efficacy.
• To inform critical care physicians about the current evidence and knowledge gaps.

Main Methods:

• This is a narrative review.
• It synthesizes existing literature on midodrine's use in intensive care settings.
• Focuses on clinical trials and retrospective studies.

Main Results:

• Midodrine is used adjunctively to wean vasopressors or as an oral vasopressor.
• Early studies supported its use for vasopressor weaning, but recent RCTs have largely refuted this.
• Significant questions remain regarding its optimal application in critically ill patients.

Conclusions:

• The role of midodrine in managing critically ill patients requires further clarification.
• Key areas needing investigation include patient selection, optimal dosing, and timing of administration.
• More research is essential to establish evidence-based guidelines for midodrine use in critical care.