Evidence map›Paper›PMID 28474275›Full record

ArticleWorld journal of surgery2017

Comparison of Mono- and Bipolar Radiofrequency Ablation in Benign Thyroid Disease.

Yücel Korkusuz, Alexander Mader, Daniel Gröner, Shadi Ahmad, Oscar Maximilian Mader, Frank Grünwald, Christian Happel

Abstract readComparative Study
PubMed Publisher
In one paragraph

Article in World journal of surgery, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
8citing papers in PubMed, 1 pooled it
1.9field-weighted citation impact, top 13% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

8 citing papers in PubMed, 1 synthesis or guideline pooled it, 18 citations in OpenAlex.

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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

7 authors at 2 institutions in 1 country.

Yücel KorkusuzDepartment of Nuclear Medicine, University Hospital Frankfurt am Main, Frankfurt am Main, Germany.
Alexander MaderDepartment of Nuclear Medicine, University Hospital Frankfurt am Main, Frankfurt am Main, Germany. alex_mader@gmx.de.ORCID 0000-0002-1996-3574
Daniel GrönerDepartment of Nuclear Medicine, University Hospital Frankfurt am Main, Frankfurt am Main, Germany.
Shadi AhmadDepartment of General and Visceral Surgery, Agaplesion Elisabethenstift, Darmstadt, Germany.
Oscar Maximilian MaderDepartment of Nuclear Medicine, University Hospital Frankfurt am Main, Frankfurt am Main, Germany.
Frank GrünwaldDepartment of Nuclear Medicine, University Hospital Frankfurt am Main, Frankfurt am Main, Germany.
Christian HappelDepartment of Nuclear Medicine, University Hospital Frankfurt am Main, Frankfurt am Main, Germany.
Goethe University Frankfurt · DEEuropean Organisation for the Exploitation of Meteorological Satellites · DE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeRadiofrequency ablation (RFA) is an approved minimal invasive method for the treatment of benign thyroid nodules. Several experimental, mainly ex vivo animal studies have compared the effectiveness of different RFA procedures in liver tissue. The aim of this retrospective clinical study was to evaluate the difference between monopolar and bipolar RFA in thyroid tissue considering thyroid volume reduction, patient discomfort and ultrasound evaluation.

methodsEighteen patients with symptomatic complex benign thyroid nodules were treated in a single RFA session. Nine patients were treated with monopolar RFA, and nine other patients were treated with bipolar RFA. All patients underwent assessments before therapy and at 3-month follow-up (3MFU) including a complete hormone status (T3, T4, TSH, TG, TPOAb, TgAb, TRAb) and several ultrasound (US) evaluations using B-mode and color-coded Doppler imaging. The US evaluations contained measurement of volume, US Doppler, US echogenicity and US elastography. Additionally, applied energy (kJ), power output (W), number of shots (N) and total treatment time (s) were recorded in every case.

resultsMonopolar RFA resulted in a significant (p < 0.05) average thyroid volume reduction of Ø 18 ± 77 ml (25.1 ± 103%) and a nodule volume reduction of Ø 10.6 ± 22 ml (60.3 ± 62%). Bipolar RFA resulted in a significant (p < 0.05) average thyroid volume reduction of Ø 21.2 ± 54 ml (43.2 ± 84%) and a nodule volume reduction of Ø 13.8 ± 33 ml (70.8 ± 46%). Both groups showed equal results concerning volume reduction (p > 0.05). Monopolar RFA did not lead to any significant changes concerning the US scores, whereas bipolar RFA led to a significant (p < 0.05) reduction in US Doppler and nodular blood flow. No significant difference between both groups could be found concerning applied energy, treatment time, power output and number of shots (p > 0.05).

conclusionBipolar RFA did not show any disadvantages in comparison with monopolar RFA in the treatment of benign thyroid nodules. It shows better performance in terms of volume reduction and is superior when it comes to feasibility and patient discomfort. The recent study confirms the good ex vivo results for bipolar RFA.

Indexed as

AdultAgedAged, 80 and overAnimalsCatheter AblationFemaleHumansMaleMiddle AgedRetrospective StudiesThyroid NoduleUltrasonographyBenign Thyroid NoduleBipolar GroupPercutaneous Ethanol Injection TherapyRadio Frequency AblationThyroid Nodule

Identifiers

PMID28474275
OpenAlexW2610903571

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.