Related Experiment Video
Updated: Jun 5, 2026

07:36
Laparoscopic Common Bile Duct Exploration in Patients with a Previous History of Biliary Tract Surgery
Published on: February 10, 2023
Laparoscopy entry in patients with previous abdominal and pelvic surgery
Andrea Tinelli1, Antonio Malvasi, Marcello Guido
1Department of Obstetrics and Gynecology, Vito Fazzi Hospital, Lecce, Italy. andreatinelli@gmail.com
Surgical Innovation
|January 20, 2011
Summary
Direct optical entry (DOE) is a faster and safer laparoscopic surgery method for women with prior abdominopelvic surgery compared to open laparoscopy (OL). This technique reduces entry time and blood loss, enhancing patient safety during trocar insertion.
Area of Science:
- Minimally Invasive Surgery
- Surgical Techniques
- Gynecologic Surgery
Background:
- Laparoscopic surgery access is challenging in patients with prior abdominopelvic surgery due to adhesions.
- Risk of visceral proximity to trocar insertion sites increases surgical difficulty.
Purpose of the Study:
- To compare the safety and efficacy of direct optical entry (DOE) versus Hasson's open laparoscopy (OL).
- To evaluate these methods in women with a history of abdominopelvic surgery.
Main Methods:
- A prospective case-control study involving 168 women undergoing laparoscopic surgery.
- 86 patients underwent abdominal DOE (Group A), and 82 underwent OL (Group B).
- Key outcomes measured: abdominal entry time, blood loss, and vascular/bowel injury.
Main Results:
- Direct optical entry (DOE) showed statistically significant shorter entry duration (P < .01).
- DOE group experienced significantly less blood loss compared to the open laparoscopy (OL) group.
- No significant difference in vascular or bowel injuries between the DOE and OL groups.
Conclusions:
- Direct optical entry (DOE) offers advantages over open laparoscopy (OL) for laparoscopic surgery access in patients with prior abdominopelvic surgery.
- DOE facilitates a safe, time-saving, and visually guided entry, improving surgical efficiency.

