Impact of preoperative pleural effusion on ultrasound- and pressure-guided thoracic paravertebral block: a prospective observational study.

ABSTRACT:

Objective

To evaluate the impact of preoperative pleural effusion on the ultrasound visualization of the paravertebral space (PVS), thoracic paravertebral nerve block administered by anesthesiologists, and to investigate whether ultrasound combined with pressure guidance can assist in locating the paravertebral space in patients with pleural effusion.

Methods

This prospective observational study enrolled patients undergoing thoracic surgery at Beijing Jishuitan Hospital between September 2021 and September 2022. Patients were categorized into two groups based on preoperative CT findings: the pleural effusion group (n = 40) and the non-pleural effusion group (n = 40). Prior to the induction of general anesthesia, all patients were placed in a lateral position. Thoracic parave

SUBMITTER: Zhao Y 

PROVIDER: S-EPMC12004804 | biostudies-literature | 2025 Apr

REPOSITORIES: biostudies-literature