Percutaneous radiofrequency ablation of lung tumors: difficulty withdrawing the hooks resulting in a split needle.

PAPER pubmed Cardiovascular and interventional radiology 2003 Case report Effect: harm Evidence: Very low

Read original paper → DOI: 10.1007/s00270-003-0087-9 PMID: 15061190 Evidence Lab

Abstract

We describe a most unusual problem of a split needle following a lung radiofrequency ablation (RFA) procedure. We encountered the problem when retracting the electrode hooks into the shaft at completion of the ablation. We describe the process we adopted to overcome this problem. Charring of the ablated tissue can cause the tissue to become caught in the space between the hooks and the shaft or stick to the hooks. This can prevent withdrawal of the hooks into the shaft and is therefore an important complication of which practitioners need to be aware.

AI evidence extraction

At a glance

Study type

Case report

Effect direction

harm

Population

—

Sample size

—

Exposure

radiofrequency ablation (medical procedure)

Evidence strength

Very low

Confidence: 74% · Peer-reviewed: yes

Main findings

A case is described in which, after lung radiofrequency ablation, retracting the electrode hooks into the shaft was difficult and resulted in a split needle. The authors suggest charring of ablated tissue may cause tissue to catch between the hooks and shaft or stick to the hooks, preventing hook withdrawal.

Outcomes measured

Procedural complication: difficulty withdrawing electrode hooks
Split needle during lung radiofrequency ablation
Potential mechanism: tissue charring causing tissue to catch/stick to hooks

Limitations

Single case report
No quantitative exposure parameters (e.g., frequency, power, SAR) reported
No comparator group or incidence estimate

Suggested hubs

engineering (0.55)
Describes a device/procedural complication involving an RFA electrode and hook retraction mechanism.

View raw extracted JSON

{
    "study_type": "case_report",
    "exposure": {
        "band": null,
        "source": "radiofrequency ablation (medical procedure)",
        "frequency_mhz": null,
        "sar_wkg": null,
        "duration": null
    },
    "population": null,
    "sample_size": null,
    "outcomes": [
        "Procedural complication: difficulty withdrawing electrode hooks",
        "Split needle during lung radiofrequency ablation",
        "Potential mechanism: tissue charring causing tissue to catch/stick to hooks"
    ],
    "main_findings": "A case is described in which, after lung radiofrequency ablation, retracting the electrode hooks into the shaft was difficult and resulted in a split needle. The authors suggest charring of ablated tissue may cause tissue to catch between the hooks and shaft or stick to the hooks, preventing hook withdrawal.",
    "effect_direction": "harm",
    "limitations": [
        "Single case report",
        "No quantitative exposure parameters (e.g., frequency, power, SAR) reported",
        "No comparator group or incidence estimate"
    ],
    "evidence_strength": "very_low",
    "confidence": 0.7399999999999999911182158029987476766109466552734375,
    "peer_reviewed_likely": "yes",
    "keywords": [
        "radiofrequency ablation",
        "lung tumor",
        "electrode hooks",
        "split needle",
        "procedural complication",
        "charring"
    ],
    "suggested_hubs": [
        {
            "slug": "engineering",
            "weight": 0.5500000000000000444089209850062616169452667236328125,
            "reason": "Describes a device/procedural complication involving an RFA electrode and hook retraction mechanism."
        }
    ]
}

AI can be wrong. Always verify against the paper.

AI-extracted fields are generated from the abstract/metadata and may be incomplete or incorrect. This content is for informational purposes only and is not medical advice.

Comments

No comments yet.