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Evaluation of oxidative stress in laparoscopic cholecystectomy
Baris Zulfikaroglu1, Mahmut Koc, Atilla Soran
1Ankara Numune Teaching and Research Hospital, Opera 06100, Ankara, Turkey.
Surgery Today
|October 12, 2002
Summary
Laparoscopic cholecystectomy (LC) shows minimal impact on blood gases and less oxidative stress compared to open surgery. However, gallbladder tissue may experience more trauma during LC, indicating a need for careful handling.
Area of Science:
- Surgical innovation
- Minimally invasive surgery
- Gastrointestinal surgery
Background:
- Laparoscopic cholecystectomy (LC) is increasingly common.
- Understanding the physiological effects of CO2 pneumoperitoneum is crucial.
- Assessing oxidative stress markers is important for patient outcomes.
Purpose of the Study:
- To evaluate the impact of CO2 pneumoperitoneum and elevated intra-abdominal pressure during LC.
- To compare arterial blood gases, end-tidal CO2 (ETCO2), nitric oxide (NO), malondialdehyde (MDA), and total antioxidant (TAOx) levels between LC and open cholecystectomy (OC).
Main Methods:
- Prospective randomized study of 50 patients with cholelithiasis.
- Comparison between laparoscopic and open cholecystectomy.
- Serial blood sampling and gallbladder tissue analysis for MDA levels.
Main Results:
- CO2 pneumoperitoneum caused a minimal decrease in blood pH during LC.
- Lower blood MDA levels in LC suggested less oxidative stress, but higher tissue MDA indicated gallbladder trauma.
- NO levels were similar between groups, while TAOx levels were lower postoperatively in the LC group.
Conclusions:
- LC demonstrates less oxidative stress and stimulates the antioxidant defense system less.
- These findings support the safety of LC.
- Careful tissue handling during LC is recommended to minimize trauma.