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Continuous versus intermittent portal triad clamping for liver resection: a controlled study
J Belghiti1, R Noun, R Malafosse
1Department of Digestive Surgery, Hospital Beaujon, Clichy, France.
Annals of Surgery
|March 17, 1999
Summary
Intermittent pedicular clamping (IPC) shows better liver parenchymal tolerance than continuous pedicular clamping (CPC), particularly in patients with abnormal liver parenchyma. This study highlights IPC as a potentially safer method for liver resections.
Area of Science:
- Hepatobiliary Surgery
- Surgical Techniques
- Liver Physiology
Background:
- Pedicular clamping is crucial for minimizing blood loss during liver resections.
- Debate exists regarding the superiority of intermittent pedicular clamping (IPC) over continuous pedicular clamping (CPC) in human liver surgery, concerning hepatocellular injury and hemostasis.
- Understanding the impact of clamping techniques on liver parenchyma is vital for patient outcomes.
Purpose of the Study:
- To compare the intraoperative and postoperative outcomes of liver resections using continuous pedicular clamping (CPC) versus intermittent pedicular clamping (IPC).
- To evaluate the safety and efficacy of IPC and CPC in patients with normal versus abnormal liver parenchyma.
Main Methods:
- A prospective randomized study involving 86 patients undergoing liver resections.
- Patients were assigned to either CPC (n=42) or IPC (n=44) groups, with IPC involving 15-minute clamping and 5-minute unclamping cycles.
- Data analysis included stratification based on the presence of abnormal liver parenchyma (steatosis >20%, chronic liver disease).
Main Results:
- No significant differences were observed between groups regarding patient demographics, tumor characteristics, or surgical extent.
- Intraoperative blood loss was significantly higher in the IPC group during liver transection.
- Patients in the CPC group with abnormal liver parenchyma exhibited significantly elevated postoperative liver enzymes and bilirubin levels, with severe liver dysfunction and two deaths occurring in this subgroup.
Conclusions:
- Intermittent pedicular clamping (IPC) demonstrates superior liver parenchymal tolerance compared to continuous pedicular clamping (CPC).
- The benefits of IPC are particularly pronounced in patients with abnormal liver parenchyma, suggesting improved safety and reduced risk of complications.
- This study supports the use of IPC as a preferred clamping strategy in liver resections, especially in compromised liver conditions.