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Regional Anesthesia in Ambulatory Endovenous Ablation Surgery

Regional Anesthesia in Ambulatory Endovenous Ablation Surgery: Comparison of Postoperative Effects of Femoral Block and Low-Dose Spinal Anesthesia

Status
Completed
Phases
Unknown
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT07297082
Enrollment
40
Registered
2025-12-22
Start date
2025-12-25
Completion date
2026-04-08
Last updated
2026-04-13

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Ambulatory Surgery, Discharge Time, Femoral Nerve Block, Spinal Anesthesia

Keywords

Ambulatory surgery, Endovenous laser ablation, Discharge Time, Femoral nerve block, Spinal Anesthesia

Brief summary

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.

Interventions

PROCEDUREFemoral nerve block

After monitoring, the patient is in the supine position and the femoral area on the side to be treated is sterilized. A femoral nerve block is then performed using 20 cc of 1% lidocaine using an ultrasound-guided blocking needle.

PROCEDURESpinal anesthesia

After monitoring, patients will be placed in the lateral decubitus position. Following appropriate field sterilization, patients will receive unilateral spinal anesthesia with 6 mg bupivacaine. Five minutes after spinal anesthesia, patients will be placed in the supine position.

Sponsors

Ankara Etlik City Hospital
Lead SponsorOTHER_GOV

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
TRIPLE (Caregiver, Investigator, Outcomes Assessor)

Eligibility

Sex/Gender
ALL
Age
18 Years to 80 Years
Healthy volunteers
No

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

Design outcomes

Primary

MeasureTime frameDescription
Discharge timeOn the operation dayThe time (minutes) from the application of spinal anesthesia or femoral nerve block to the patients' discharge will be recorded as the discharge period

Secondary

MeasureTime frameDescription
Motor block disappearing timeOn the operation dayTime (minutes) to disappearance of complete motor block in the lower extremity
Sensorial block disappearing timeOn the operation dayTime (minutes) to disappearance of sensorial block in the lower extremity

Countries

Turkey (Türkiye)

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Apr 14, 2026