RF Safe

The imprint of radiofrequency in the management of hepatocellular carcinoma.

HPB : the official journal of the International Hepato Pancreato Biliary Association · 2006 · Mixed · Insufficient evidence

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MixedInsufficient evidencePaper 3451

The review reports that radiofrequency thermoablation (along with microwave coagulation therapy and laser-induced thermotherapy) can produce tumor necrosis with a low complication rate, but the extent of necrosis is difficult to monitor in real time and outco…

Study snapshot

PublicationHPB : the official journal of the International Hepato Pancreato Biliary Association · 2006
Study typereview
Reported directionMixed
Evidence ratingInsufficient

Abstract

BACKGROUND: This article reviews the current results of radiofrequency application in the management of hepatocellular carcinoma (HCC) with reference to the comparison between the different surgical modalities. METHOD: An electronic search was performed for studies on the treatment of HCC. RESULTS: Thermoablation by means of radiofrequency (RFA), microwave coagulation therapy (MCT) and laser-induced thermotherapy (LITT) provides tumor necrosis with a low complication rate. These methods are still not predictable and it is difficult to monitor the extent of necrosis in a real-time manner. Combined transarterial embolization and RF ablation is a promising strategy for large HCCs. Radiofrequency-assisted liver resection is unique and has become very popular recently because it permits parenchymal transection with minimal blood loss. CONCLUSION: Many alternative techniques have been applied recently for the management of HCC but their exact roles need to be defined by randomized studies. Advances in technology and refinements in technique may provide an effective and predictable way to ablate liver tumors using radiofrequency devices.

Machine Enhanced Logic

AI evidence extraction

Structured fields below were generated from the paper’s abstract and metadata to make the evidence easier to inspect. Automated extraction may be incomplete or incorrect; verify important details against the original paper.

Study typereview
Effect directionmixed
PopulationPatients with hepatocellular carcinoma (HCC)
Sample sizeNot supplied
ExposureRF
Evidence strengthInsufficientConfidence: 74% · Peer reviewed: yes

Main findings

The review reports that radiofrequency thermoablation (along with microwave coagulation therapy and laser-induced thermotherapy) can produce tumor necrosis with a low complication rate, but the extent of necrosis is difficult to monitor in real time and outcomes are described as not predictable. It notes combined transarterial embolization plus radiofrequency ablation as a promising strategy for large HCCs and describes radiofrequency-assisted liver resection as enabling parenchymal transection with minimal blood loss.

Outcomes measured

  • Tumor necrosis
  • Complication rate
  • Predictability/monitoring of necrosis extent
  • Blood loss during liver resection

Limitations

  • Narrative review based on an electronic search; included study designs and quality are not described in the abstract
  • Calls for randomized studies to define exact roles of techniques
  • No quantitative effect estimates or sample sizes reported in the abstract
View raw extracted JSON
{
  "study_type": "review",
  "exposure": {
    "band": "RF",
    "source": "medical device (radiofrequency ablation)",
    "frequency_mhz": null,
    "sar_wkg": null,
    "duration": null
  },
  "population": "Patients with hepatocellular carcinoma (HCC)",
  "sample_size": null,
  "outcomes": [
    "Tumor necrosis",
    "Complication rate",
    "Predictability/monitoring of necrosis extent",
    "Blood loss during liver resection"
  ],
  "main_findings": "The review reports that radiofrequency thermoablation (along with microwave coagulation therapy and laser-induced thermotherapy) can produce tumor necrosis with a low complication rate, but the extent of necrosis is difficult to monitor in real time and outcomes are described as not predictable. It notes combined transarterial embolization plus radiofrequency ablation as a promising strategy for large HCCs and describes radiofrequency-assisted liver resection as enabling parenchymal transection with minimal blood loss.",
  "effect_direction": "mixed",
  "limitations": [
    "Narrative review based on an electronic search; included study designs and quality are not described in the abstract",
    "Calls for randomized studies to define exact roles of techniques",
    "No quantitative effect estimates or sample sizes reported in the abstract"
  ],
  "evidence_strength": "insufficient",
  "confidence": 0.74,
  "peer_reviewed_likely": "yes",
  "keywords": [
    "radiofrequency",
    "radiofrequency ablation",
    "hepatocellular carcinoma",
    "liver tumor",
    "thermoablation",
    "microwave coagulation therapy",
    "laser-induced thermotherapy",
    "transarterial embolization",
    "liver resection"
  ],
  "suggested_hubs": []
}
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AI-extracted fields are generated from the abstract and metadata and may be incomplete or incorrect. This material is for informational purposes and is not medical advice.

Identifiers and source

DOI: 10.1080/13651820500273673
PubMed: 18333136

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