Evidence map›Paper›PMID 41526832›Full record

ArticleBMC anesthesiology2026

A comparative evaluation of the quality of responses provided by different large language model chatbots to frequently asked questions regarding nerve blocks.

Serkan Tulgar, Can Aksu, Onur Selvi, Pervez Sultan, Alper Tunga Dogan, Hadi Ufuk Yörükoğlu, David Terence Thomas, Ali Ahiskalioglu

Abstract readComparative Study
In one paragraph

Article in BMC anesthesiology, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.

0numbers the graph read from it
0cells of the map it votes in
3citing papers in PubMed
–field-weighted citation impact
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

3 citing papers in PubMed.

  1. Article
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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

8 authors.

Serkan TulgarDepartment of Anesthesiology and Reanimation, Faculty of Medicine, Bahcesehir University, Goztepe Medicalpark Hospital, Istanbul, Türkiye, Turkey. serkantulgar.md@gmail.com.
Can AksuDepartment of Anesthesiology and Reanimation, Kocaeli University School of Medicine, Kocaeli, Türkiye.
Onur SelviDepartment of Anaesthesia, St George's University Hospitals, London, UK.
Pervez SultanDepartment of Anesthesiology, Perioperative and Pain medicine, Stanford University School of Medicine, California, USA.
Alper Tunga DoganDepartment of Anesthesiology and Reanimation, American Hospital, Istanbul, Türkiye, Turkey.
Hadi Ufuk YörükoğluDepartment of Anesthesiology and Reanimation, Kocaeli University School of Medicine, Kocaeli, Türkiye.
David Terence ThomasDepartment of Pediatric Surgery, Faculty of Medicine, Sancaktepe City Hospital, Health Science University, Istanbul, Türkiye, Turkey.
Ali AhiskaliogluDepartment of Anesthesiology and Reanimation, Ataturk University School of Medicine, Erzurum, Türkiye, Turkey.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

STUDY

objectiveLarge language models (LLMs) are used in all areas of life and have become one of the information sources for those seeking healthcare. Although ChatGPT is the most well-known, Claude, CoPilot, and GEMINI are also among the other LLMs. Some of these models have been studied in terms of their response quality metrics to frequently asked questions (FAQs) about broad content areas like anesthesia and to specific FAQs related to obstetric analgesia. However, no studies have yet been conducted on questions related to nerve blocks. In this study, we evaluated the quality of the answers given by the four LLMs to frequently asked questions related to 'nerve block'.

designProspective, Delphi study, Survey.

interventionTen FAQs were identified and presented to four LLMs. A Delphi study was conducted to develop an assessment tool. A survey study was then conducted using the developed tool, in which the evaluators, selected through a thorough process, evaluated the LLM responses. MEASUREMENTS: The quality of LLM responses was assessed by raters using the ARQuAT (Assessing Response Quality in AI Texts) tool, determined through Delphi rounds. Evaluation criteria included content criteria such as accuracy, comprehensiveness, security, timeliness, and relevance, as well as communication criteria such as understandability, empathy, ethical considerations, readability, and neutrality. MAIN

resultsChatGPT and Claude demonstrated superior performance in ARQuAT-Overall scores compared to GEMINI and CoPilot (p < 0.001). ChatGPT and Claude achieved satisfaction rates above 80% in both content and communication quality metrics, significantly outperforming GEMINI (p < 0.001 for both comparisons), while CoPilot showed intermediate performance.

conclusionResponses to FAQs related to nerve blocks were well and acceptably addressed by ChatGPT, Claude, and, to a lesser extent, CoPilot. GEMINI performed poorly compared to the others, exhibiting subpar performance on several questions, particularly in terms of safety and relevance.

Indexed as

Large Language ModelsNerve BlockDelphi TechniqueGenerative Artificial IntelligenceHumansProspective StudiesSurveys and Questionnaires

Identifiers

PMID41526832
PMCPMC12888154

What OpenQuestion holds

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LicenceCC BY-NC-ND
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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.