Key result
Unilateral spinal anesthesia significantly reduced the need for vasopressors compared to conventional bilateral spinal anesthesia (2 vs 8 instances, p=0.02) in patients undergoing lower limb orthopedic surgery.
Why the study?
A restricted sympathetic block during spinal anesthesia may reduce hemodynamic changes, leading to the comparison of unilateral and conventional spinal blocks in orthopedic lower limb operations.
Does unilateral spinal anesthesia improve hemodynamic stability and reduce vasopressor use compared to conventional spinal block in ASA I and II patients undergoing orthopedic lower limb operations?
RCT (n=42)
Randomly divided
Yes
Does unilateral spinal anesthesia improve hemodynamic stability and reduce vasopressor use compared to conventional spinal block in ASA I and II patients undergoing orthopedic lower limb operations?
Absolute Event Rate: 2% vs 8%
p-value: p=0.02
Unilateral spinal anesthesia using a slow, low-volume method provides better hemodynamic stability and reduces the need for vasopressors compared to conventional spinal block in lower limb orthopedic surgeries.
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May favor unilateral spinal anesthesia to minimize vasopressor use in lower limb orthopedic surgery; confirms hemodynamic benefits in ASA I-II patients.
Boujan et al. (2020) conducted an RCT in Orthopedic lower limb operation (n=42). Unilateral spinal anesthesia vs. Conventional (bilateral) spinal anesthesia was evaluated on Vasopressor (ephedrine) use (p=0.02). Unilateral spinal anesthesia significantly reduced the need for vasopressors compared to conventional bilateral spinal anesthesia (2 vs 8 instances, p=0.02) in patients undergoing lower limb orthopedic surgery.
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