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Thermal Ablation for the Treatment of Abdominal Tumors
Published on: March 7, 2011
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Solid Organ Cool-tip Radiofrequency Ablation: An Experimental Study with Clinicopathological Correlations
Michalis Kontos1, Elias Drakos2, Apostolos Papalois3
1First Department of Surgery, Laiko General Hospital, University of Athens Medical School, Athens, Greece Michalis_Kontos@yahoo.com.
In Vivo (Athens, Greece)
|December 29, 2015
Summary
Radiofrequency ablation (RFA) of solid tumors causes minimal complications. Histological analysis shows preserved architecture and sealed vessels in RFA-treated tissues, explaining the low complication rates.
Area of Science:
- Interventional Radiology
- Oncology
- Pathology
Background:
- Radiofrequency ablation (RFA) is an in situ treatment for solid tumors.
- Internally cooled electrodes enhance RFA efficacy.
- RFA induces pathological changes with potential for clinical complications.
Purpose of the Study:
- To assess RFA-induced histological alterations in solid tumors.
- To correlate these histological changes with clinical complications.
Main Methods:
- A porcine model was used to study RFA-induced lesions in kidney, liver, and spleen.
- Histopathology of lesions was correlated with postoperative course and complications.
Main Results:
- Complications such as abscess, hemorrhage, and leakage were limited or absent.
- RFA-induced necrotic tissue showed preserved architecture.
- Sealing of blood/bile/urinary vessels at lesion periphery was observed.
Conclusions:
- Minimal complications are attributed to preserved necrotic tissue architecture.
- Slow clearance of necrotic tissue and limited inflammation contribute to safety.
- RFA's ability to seal vessels minimizes leakage and hemorrhage.
