Local Anaesthetic Spread and Sensory Block Range of the Retro-superior Costotransverse Ligament Space Block
Trial Parameters
Brief Summary
The aim of this clinical trial is to investigate the effects of local anesthetic diffusion range and sensory block range during retro-SCTLB(retro superior costotransverse ligament space block) and TPVB(thoracic paravertebral block) in patients undergoing CT-guided lung nodule localization. The main issue of the study is to determine the differences in the diffusion range and sensory block range of local anesthetics between the retro-SCTLB and TPVB nerve block methods.
Eligibility Criteria
Inclusion Criteria: Patients scheduled for CT-guided lung nodule localization under local anesthesia will be selected 1. aged 18-80 years 2. BMI 18-30 kg/m² 3. ASA classification I-III Exclusion Criteria: 1. Allergy to the study drug or local anesthetic; 2. History of opioid abuse; 3. Pre-existing skin infection at the puncture site of ITPN or TPVB; 4. Peripheral infectious neuropathy; 5. Dysfunction of blood coagulation