Ensuring transmurality using irrigated radiofrequency modified maze in surgery for atrial fibrillation--a simple and effective way.

Heart, lung & circulation · 2004 · Unclear · Insufficient evidence

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UnclearInsufficient evidencePaper 3633

The abstract states that unipolar energy sources (including radiofrequency and microwave) do not guarantee transmurality and may require intraoperative testing. It describes a simple and effective method to ensure transmurality using irrigated radiofrequency …

Study snapshot

PublicationHeart, lung & circulation · 2004

Study typeother

Reported directionUnclear

Evidence ratingInsufficient

Abstract

Transmural lesions are ensured with the cut and sew technique and with bipolar delivery of radiofrequency (RF) energy [Ann. Thorac. Surg. 74 (2002) 2210]. Unipolar sources of energy such as radiofrequency and microwave do not guarantee transmurality and may require intraoperative testing to evaluate complete lesion depth. Transmural lesions are generally effective electrophysiological lesions and are desirable as it does not allow atrial fibrillation (AF) breakthrough or development of atrial flutter in most instances. We describe a simple and effective way of ensuring transmurality using irrigated radiofrequency in the modified maze surgery for AF.

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 typeother

Effect directionunclear

PopulationNot supplied

Sample sizeNot supplied

ExposureRF

Evidence strengthInsufficientConfidence: 62% · Peer reviewed: yes

Main findings

Outcomes measured

transmural lesion creation (lesion depth/completeness)
atrial fibrillation breakthrough
atrial flutter development

Limitations

No quantitative results are provided in the abstract.
No sample size or patient characteristics are reported.
Study design details are not stated.

View raw extracted JSON

{
  "study_type": "other",
  "exposure": {
    "band": "RF",
    "source": "surgical radiofrequency ablation (irrigated RF)",
    "frequency_mhz": null,
    "sar_wkg": null,
    "duration": null
  },
  "population": null,
  "sample_size": null,
  "outcomes": [
    "transmural lesion creation (lesion depth/completeness)",
    "atrial fibrillation breakthrough",
    "atrial flutter development"
  ],
  "main_findings": "The abstract states that unipolar energy sources (including radiofrequency and microwave) do not guarantee transmurality and may require intraoperative testing. It describes a simple and effective method to ensure transmurality using irrigated radiofrequency in modified maze surgery for atrial fibrillation.",
  "effect_direction": "unclear",
  "limitations": [
    "No quantitative results are provided in the abstract.",
    "No sample size or patient characteristics are reported.",
    "Study design details are not stated."
  ],
  "evidence_strength": "insufficient",
  "confidence": 0.62,
  "peer_reviewed_likely": "yes",
  "keywords": [
    "radiofrequency",
    "irrigated radiofrequency",
    "modified maze",
    "atrial fibrillation",
    "transmurality",
    "surgery",
    "lesion depth"
  ],
  "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: 10.1016/j.hlc.2004.03.017
PubMed: 16352212

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