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Impact of Smoking on Ultrasound-Guided Infraclavicular Brachial Plexus Block Onset and Duration

NCT06755229 · Status: NOT_YET_RECRUITING · Type: OBSERVATIONAL · Enrollment: 40

Last updated 2025-01-01

No results posted yet for this study

Summary

The present study will be conducted involving 40 patients aged 18-65 years with ASA physical status I and II, scheduled for acute or elective hand or forearm surgery under the lateral infraclavicular block. Patients will be divided into two groups based on smoking status: Group I (non-smokers) and Group II (smokers who smoke ≥20 cigarettes/day for over 1 year).

Using a high-frequency linear ultrasound transducer, the axillary artery, vein, and the three nerve cords will be identified in the lateral infraclavicular region. After disinfection with ethanol-chlorhexidine, a sterile drape will be placed, and the attending anesthesiologist will perform the ultrasound-guided infraclavicular brachial plexus block with a triple injection technique. A total of 10 mL of bupivacaine 0.25% and prilocaine 0.05% will be injected at all three nerve cords.

The primary outcome will be the sensory blockade onset time, while secondary outcomes will include the duration of sensory and motor blockade, motor blockade onset time, time to first postoperative rescue analgesia, and total consumption of rescue analgesia. Postoperative pain will be assessed using the Visual Analogue Scale (VAS) within the first 24 hours at intervals of 2, 4, 8, 12, 16, and 24 hours. If VAS exceeds 30 cm, rescue analgesia with 0.05 mg/kg intravenous morphine sulfate will be administered.

Conditions

  • Smoking, Cigarette
  • Regional Anesthesia

Sponsors & Collaborators

  • Selcuk University

    lead OTHER

Eligibility

Min Age
18 Years
Max Age
65 Years
Sex
ALL
Healthy Volunteers
No

Timeline & Regulatory

Start
2025-01-15
Primary Completion
2025-03-15
Completion
2025-03-20

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Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT06755229 on ClinicalTrials.gov