pneumopreperitoneum

Full Definition

The controlled introduction of CO₂ gas into the preperitoneal fascial plane to create a working space for extraperitoneal laparoscopic surgery. This technique is fundamental to procedures such as totally extraperitoneal (TEP) hernia repair, where it allows visualization of the posterior abdominal wall without entering the peritoneal cavity. The gas separates fascial layers and creates a three-dimensional surgical field.

Usage

Usage note: Distinguish clearly from pneumoperitoneum in surgical reports.

In Context

• "Pneumopreperitoneum was established using balloon dissection followed by CO₂ insufflation." — Operative report
• "The procedure relies on pneumopreperitoneum to visualize the Cooper ligament and iliopubic tract." — Technical guide