Neuraxial anaesthesia for lower-limb revascularization.

Area of Science:

• Anesthesiology
• Vascular Surgery
• Critical Care Medicine

Background:

• Lower-limb revascularization surgery aims to restore blood flow, alleviate pain, and improve limb function.
• Neuraxial anesthesia, using local anesthetics near the spinal cord, may improve patient survival.
• This systematic review, originally published in 2010, has been updated multiple times to include the latest evidence.

Purpose of the Study:

• To compare the rates of death and major complications between neuraxial anesthesia (spinal/epidural) and other anesthetic types for lower-limb revascularization.
• To evaluate outcomes in adult patients (18+ years) with obstructed lower-limb arteries undergoing revascularization surgery.

Main Methods:

• Systematic review and meta-analysis of randomized controlled trials.
• Searched multiple databases (CENTRAL, MEDLINE, EMBASE, etc.) from 2011 to April 2013 for updated evidence.
• Included trials comparing neuraxial anesthesia with general anesthesia in adults undergoing lower-limb revascularization.

Main Results:

• Four trials with 696 participants were included; no new studies were found in the latest update.
• No significant differences were observed in mortality, myocardial infarction, or lower-limb amputation rates between neuraxial and general anesthesia.
• Pneumonia occurred less frequently following neuraxial anesthesia compared to general anesthesia (OR 0.37, 95% CI 0.15 to 0.89).

Conclusions:

• Evidence is insufficient to rule out clinically important differences for most outcomes between neuraxial and general anesthesia.
• Neuraxial anesthesia may be associated with a reduced risk of pneumonia.
• Conclusions regarding mortality, myocardial infarction, and amputation rates remain uncertain due to limited evidence.