Revised-Paravertebral Nerve Blocks for Enhanced Recovery After Laparoscopic Cholecystectomy

After laparoscopic cholecystectomy, pain remains an important problem affecting patient recovery. A revised paravertebral block (r-PVB) was developed as a single-shot, large-volume intercostal-space injection performed at the exposed mid-axillary eighth or ninth intercostal level with the patient kept supine after induction of anesthesia. Rather than puncturing the classical paraspinal target near the transverse process with a specific prone or lateral position of the patient, r-PVB is designed to exploit medial spread of local anesthetic along the intercostal-endothoracic-extrapleural continuum, thereby generating a functional paravertebral block while avoiding direct entry into the paravertebral space and specific body positioning. r-PVB addresses several practical limitations of conventional PVB by eliminating the need to reposition an anesthetized patient, using a more accessible and potentially clearer sonographic window, reducing interference from transverse-process shadowing, and facilitating in-plane needle visualization.

NCT Number	NCT07566819
Lead Sponsor	Sixth Affiliated Hospital, Sun Yat-sen University
Conditions	Benign Gallbladder Disease, Laparoscopic Cholecystectomy, Postoperative Pain, Quality of Recovery
Enrollment	250 participants
Start Date	2026-04-27
Primary Completion	2027-03-27 (estimated)
Study Completion	2027-12-31 (estimated)
Updated on ClinicalTrials.gov	2026-05-11