[Single-shot spinal anesthesia versus continuous spinal anesthesia using the CoSPAN catheter]

Area of Science:

• Anesthesiology
• Neurosurgery
• Urology

Background:

• Spinal anesthesia is a common technique for surgical procedures.
• Conventional single-shot spinal anesthesia (SS) has limitations in dose titration and hemodynamic control.
• Continuous spinal anesthesia (CS) using catheters offers potential advantages.

Purpose of the Study:

• To compare the efficacy and safety of continuous spinal anesthesia (CS) versus single-shot spinal anesthesia (SS) in patients undergoing urological surgery.
• To evaluate anesthetic spread, hemodynamic stability, and postoperative recovery between the two techniques.

Main Methods:

• A randomized prospective study involving 60 patients undergoing urological surgery.
• Patients received either SS (n=30) with bupivacaine or CS (n=30) with lidocaine via a CoSPAN catheter.
• Hemodynamic parameters and motor function recovery were assessed postoperatively. Headache incidence was monitored.

Main Results:

• CS provided more precise cephalad spread of anesthesia compared to SS.
• The CS group exhibited significantly more stable mean arterial blood pressure than the SS group.
• Postoperative motor function recovery was significantly faster in the CS group (26.7 min) compared to the SS group (67.7 min).
• No postspinal headaches were reported in either group.

Conclusions:

• Continuous spinal anesthesia with fractionated injection allows for more precise control over anesthetic spread.
• CS ensures superior hemodynamic stability and facilitates earlier return of motor function compared to SS.
• The use of 28-gauge spinal catheters appears to mitigate the risk of postspinal headache.