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OpenTrials
Completed

NCT Number: NCT06527430

Different Local Anesthetic Volumes for Unilateral Spinal Anesthesia

Varicose veins are irreversible and abnormal enlargement of the veins. These veins appear and there are curled swellings under the skin in the feet and legs. Complaints increase when standing and sitting for long periods. For varicose veins in the initial stages, medical treatment methods such as compression socks (elastic socks) and elevating the feet as much as possible can be tried. For widespread varicose veins in more advanced stages, invasive procedures such as sclerotherapy and endovascular ablation are performed. These procedures can be performed under local, spinal or general anesthesia.

Spinal anesthesia; It is a type of neuraxial type of regional anesthesia characterized by injecting local anesthetic drugs into the subarachnoid space alone or together with other drugs, resulting in temporary sensory block, motor block, and sympathetic block. The local anesthetic volume administered during spinal anesthesia may affect the anesthesia levels and discharge times of the patients. For varicose vein surgeries, low-dose local anesthetic is sufficient for spinal anesthesia and can also provide early discharge.

This study will compare the peri-operative effects of different doses of spinal anesthesia in patients undergoing varicose vein surgery.

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Key information

Age range

18 year–80 year

Sex eligibility

All sexes

Study type

Interventional

Phase

Not applicable

Primary location

Ankara Etlik City Hospital

Yenimahalle, Ankara, 06170, Turkey (Türkiye)

Who can participate

Healthy volunteers accepted: No

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

  • Patients aged 18-80 years
  • American Society of Anesthesiologists (ASA) score I-II
  • Body Mass Index (BMI) between 18-30 kg/m2
  • Patients who underwent spinal anesthesia (bupivacaine 4 mg or 6 mg) for varicose vein surgery in the operating theatre

Exclusion criteria

  • Patients under 18 and over 80 years of age
  • ASA score III and above
  • Patients with a history of bleeding diathesis
  • Patients with infection in the area to be treated
  • BMI below 18 or above 30 kg/m2

Treatment and study plan

4 mg bupivacaine

Procedure

Spinal anesthesia was applied to the patients with 4 mg bupivacaine in the lateral decubitus position.

6 mg bupivacaine

Procedure

Spinal anesthesia was applied to the patients with 6 mg bupivacaine in the lateral decubitus position.

Primary outcomes

  1. Discharge time

    Time frame: On the operation day

    The time (minutes) from the application of spinal anesthesia to the patients' discharge will be recorded as the discharge period.

Secondary outcomes

  1. Motor block appearing time

    Time frame: On the operation day

    Time (minutes) to complete motor block in the lower extremity after spinal anesthesia

  2. Sensorial block appearing time

    Time frame: On the operation day

    Time (minutes) to complete sensorial block in the lower extremity after spinal anesthesia

  3. Motor block disappearing time

    Time frame: On the operation day

    Time (minutes) to disappearance of complete motor block in the lower extremity after spinal anesthesia

  4. Sensorial block disappearing time

    Time frame: On the operation day

    Time (minutes) to disappearance of sensorial block in the lower extremity after spinal anesthesia

Sponsors and collaborators

Lead sponsor

Ankara Etlik City Hospital

Other Gov

Registry information

Official study title

Different Local Anesthetic Volumes for Unilateral Spinal Anesthesia in Varicose Vein Surgery

Important dates

Study start
2024
Primary completion
2025
Study completion
2025
First posted
Jul 30, 2024
Registry last updated
Jun 4, 2025

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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