Regional Anesthesia in Ambulatory Endovenous Ablation Surgery

Ankara Etlik City Hospital

Status: Enrolling

Conditions: Ambulatory Surgery; Femoral Nerve Block; Spinal Anesthesia; Discharge Time

Treatments: Procedure: Spinal anesthesia; Procedure: Femoral nerve block

Study type: Interventional

Funder types: Other

Identifiers

NCT07297082

AEŞH-EK-2025-266

Details and patient eligibility

About

Varicose veins represent irreversible, abnormal dilatations of the venous structures. They manifest as tortuous, swollen vessels visible beneath the skin of the lower extremities, particularly the feet and legs. Symptoms typically worsen with prolonged standing or sitting. In the early stages, conservative management options-such as the use of compression (elastic) stockings and frequent elevation of the legs-may be effective. In more advanced cases involving extensive varicosities, invasive interventions including sclerotherapy or endovascular ablation may be indicated. These procedures can be performed under local, regional, or general anesthesia.

Spinal anesthesia is a neuraxial technique that produces temporary sensory, motor, and sympathetic blockade through the subarachnoid administration of local anesthetics, with or without adjuvant agents. Clinically, it is commonly employed for surgeries involving the lower extremities, lower abdomen, perineal, gluteal, inguinal, and rectal regions, as well as select urologic and obstetric procedures.

A femoral nerve block is a regional anesthesia technique that involves ultrasound-guided injection of local anesthetic around the femoral nerve in the inguinal region. It provides effective analgesia for the anterior thigh, knee joint, and medial aspect of the lower leg. In endovenous laser ablation (EVLA), a femoral block can offer adequate sensory blockade to serve as a sole anesthetic technique.

Enrollment: 40 estimated patients

Sex: All

Ages: 18 to 80 years old

Volunteers: No Healthy Volunteers

Inclusion criteria

• Patients aged 18-80 years
• American Society of Anesthesiologists (ASA) score I-II
• Body Mass Index (BMI) between 18-30 kg/m2

Exclusion criteria

• Patients under 18 and over 80 years of age
• ASA score III and above
• BMI below 18 or above 30 kg/m2

Trial design

Primary purpose: Treatment

Allocation: Randomized

Interventional model: Parallel Assignment

Masking: Triple Blind

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40 participants in 2 patient groups

Femoral Nerve Block

Active Comparator group

Treatment:

Procedure: Femoral nerve block

Spinal anesthesia

Active Comparator group

Treatment:

Procedure: Spinal anesthesia