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Objectives: This study aims to compare the effects of spinal anesthesia and femoral nerve block and to determine the optimal anesthesia method for embolization of vena saphena magna.

Patients and methods: Between December 2019 and March 2021, a total of 160 patients (89 males, 71 females; mean age: 44.4 years; range, 18 to 69 years) who were diagnosed with varicose veins and hospitalized for surgery in our cardiovascular surgery clinic were included. The patients were divided into two groups. The first group (Group S, n= 80) underwent spinal anesthesia and the second group (Group F, n= 80) underwent femoral nerve block for the surgical operation.

Results: The mean arterial pressures (MAPs) were significantly lower in Group S compared to Group F. The mean time until surgery was earlier in Group S (4.57±1.0 min vs. 9.9±3.4 min, respectively; p< 0.01). The mean duration of motor block was longer in Group S (3.4±1.1 h vs. 2.7±0.8 h, respectively; p< 0.05). The mean duration of mobilization was statistically significantly shorter in Group F (6.1±1.7 h vs. 5.2±1.4, respectively; p< 0.05). The development of urinary retention was statistically significantly higher in Group S (p< 0.05). The mean patient satisfaction score after discharge was higher in Group F (3.5±0.5 vs. 2.9±0.8, respectively; p< 0.05). The incidence of postoperative shivering was statistically significantly higher in Group S (p< 0.05).

Conclusion: Femoral nerve block, which is used for intraoperative anesthesia during the procedure of endovenous laser ablation, can be preferred as an alternative method to spinal anesthesia.