Intermediate
Technical
IVT
pneumoperitoneum pressure
The intra-abdominal pressure maintained during laparoscopic surgery, typically 12-15 mmHg in adults.
Full Definition
The controlled pressure of CO₂ gas maintained within the peritoneal cavity during minimally invasive procedures. Standard pressure ranges from 12-15 mmHg in adults, 8-12 mmHg in pediatric patients. Proper pressure management prevents patient discomfort while maintaining adequate visualization. Excessive pressure can compromise venous return and respiratory function.
Usage
Usage note: Always specify pressure units (mmHg) when editing surgical documentation.
In Context
- "The surgeon reduced the pneumoperitoneum pressure to 8 mmHg during the pediatric appendectomy." — Operative report
- "Maintaining consistent pneumoperitoneum pressure throughout the procedure prevented bowel distension." — Technical manual
Also known as
intra-abdominal pressure
IAP
Don't confuse with
atmospheric pressure
venous pressure