Culdocentesis
Pronunciation: kul-doe-sen-TEE-sis
Diagnostic procedure involving needle aspiration through the posterior vaginal fornix into the pouch of Douglas.
Full Definition
A minimally invasive diagnostic procedure where a needle is inserted through the posterior vaginal fornix into the rectovesical pouch (pouch of Douglas) to aspirate fluid for analysis. While historically performed as a separate procedure, culdocentesis principles are relevant in laparoscopic surgery for identifying hemoperitoneum, infected fluid, or other pathological collections. The technique requires careful anatomical knowledge to avoid injury to bowel or major vessels, and findings help guide subsequent surgical management.
Usage
Usage note: Distinguish from culdotomy, which involves making an incision rather than just needle aspiration.
In Context
- "Culdocentesis revealed blood-tinged fluid consistent with hemoperitoneum." — Emergency department note
- "The principles of culdocentesis guided our approach to accessing the posterior cul-de-sac laparoscopically." — Operative planning note