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Port-site metastases following laparoscopic surgery
S J Neuhaus1, M Texler, P J Hewett
1The University of Adelaide Department of Surgery, Royal Adelaide Hospital, South Australia, Australia.
The British Journal of Surgery
|July 17, 1998
Summary
Laparoscopic surgery can lead to port site metastases due to tumor cell spread via instruments or gas. Gasless laparoscopy or helium may reduce metastasis risk, warranting further research.
Area of Science:
- Surgical Oncology
- Minimally Invasive Surgery
Background:
- Metastatic involvement at laparoscopic port sites has been reported following cancer resections.
- This phenomenon occurs even in early-stage cancers and with intact tumors during laparoscopic procedures.
Purpose of the Study:
- To review and discuss clinical and experimental studies on port site metastases after laparoscopic surgery.
- To explore the mechanisms and potential preventive strategies for port site metastases.
Main Methods:
- Review of recently published clinical studies, experimental studies, and case reports.
- Analysis of evidence from bench top, large animal, and small animal models.
Main Results:
- Tumor cells can redistribute to port sites via contaminated instruments or insufflation gas.
- Conventional laparoscopy may increase wound metastasis incidence, while gasless laparoscopy or helium insufflation might decrease it.
- Port-site metastasis development is influenced by tumor cell redistribution and the type of insufflation gas, potentially affecting local immune or metabolic factors.
Conclusions:
- Urgent further research is needed to fully understand the mechanisms of port-site metastases.
- Patients undergoing laparoscopic surgery for malignancy should be enrolled in clinical trials until the issue is better understood.