{"title":"Do stylet needles improve diagnostic accuracy in thyroid fine-needle aspiration? A retrospective analysis.","authors":"Pengfei Luo, Wei Ma, Dahai Jiao","doi":"10.1186/s12902-025-01971-8","DOIUrl":null,"url":null,"abstract":"<p><strong>Background: </strong>Compared to syringe needles, stylet needles are hypothesized to enhance the specimen adequacy of thyroid fine needle aspiration (FNA) by potentially minimizing blood contamination. However, this hypothesis lacks robust evidence for substantiation. Additionally, the substantially higher cost of stylet needles (often several orders of magnitude greater than syringe needles) raises concerns about increased procedural expenses. This study aimed to compare the outcomes of thyroid FNA using stylet versus syringe needles in a large cohort.</p><p><strong>Methods: </strong>This retrospective analysis included 4793 FNA procedures (2088 using stylet needles and 2705 using syringe needles) performed by five operators. The primary outcome was specimen adequacy. Secondary outcomes included sensitivity, specificity, diagnostic accuracy, positive predictive value (PPV), and negative predictive value (NPV).</p><p><strong>Results: </strong>No significant differences were found between stylet and syringe needle FNA for specimen adequacy (85.34% vs. 87.13%), sensitivity (95.24% vs. 96.99%), specificity (78.57% vs. 78.05%), diagnostic accuracy (93.96% vs. 95.07%), PPV (98.16% vs. 97.52%), or NPV (57.89% vs. 74.42%). Performance metrics for both methods were also not significantly different within each operator's data.</p><p><strong>Conclusion: </strong>This study found no significant benefit of stylet needles over syringe needles regarding specimen adequacy or diagnostic yield in thyroid FNA.</p><p><strong>Clinical trial number: </strong>Not applicable.</p>","PeriodicalId":9152,"journal":{"name":"BMC Endocrine Disorders","volume":"25 1","pages":"145"},"PeriodicalIF":2.8000,"publicationDate":"2025-06-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12147323/pdf/","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"BMC Endocrine Disorders","FirstCategoryId":"3","ListUrlMain":"https://doi.org/10.1186/s12902-025-01971-8","RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"ENDOCRINOLOGY & METABOLISM","Score":null,"Total":0}
引用次数: 0
Abstract
Background: Compared to syringe needles, stylet needles are hypothesized to enhance the specimen adequacy of thyroid fine needle aspiration (FNA) by potentially minimizing blood contamination. However, this hypothesis lacks robust evidence for substantiation. Additionally, the substantially higher cost of stylet needles (often several orders of magnitude greater than syringe needles) raises concerns about increased procedural expenses. This study aimed to compare the outcomes of thyroid FNA using stylet versus syringe needles in a large cohort.
Methods: This retrospective analysis included 4793 FNA procedures (2088 using stylet needles and 2705 using syringe needles) performed by five operators. The primary outcome was specimen adequacy. Secondary outcomes included sensitivity, specificity, diagnostic accuracy, positive predictive value (PPV), and negative predictive value (NPV).
Results: No significant differences were found between stylet and syringe needle FNA for specimen adequacy (85.34% vs. 87.13%), sensitivity (95.24% vs. 96.99%), specificity (78.57% vs. 78.05%), diagnostic accuracy (93.96% vs. 95.07%), PPV (98.16% vs. 97.52%), or NPV (57.89% vs. 74.42%). Performance metrics for both methods were also not significantly different within each operator's data.
Conclusion: This study found no significant benefit of stylet needles over syringe needles regarding specimen adequacy or diagnostic yield in thyroid FNA.
背景:与注射器针头相比,柱头针被认为可以通过潜在地减少血液污染来提高甲状腺细针穿刺(FNA)的标本充分性。然而,这一假设缺乏有力的证据来证实。此外,样式针的成本高得多(通常比注射器针头高出几个数量级)引起了人们对程序费用增加的担忧。本研究的目的是在一个大的队列中比较使用针刺针和注射器针的甲状腺FNA的结果。方法回顾性分析5名手术人员实施的4793例FNA手术(2088例使用针型针,2705例使用注射器针)。主要结果是标本充足性。次要结局包括敏感性、特异性、诊断准确性、阳性预测值(PPV)和阴性预测值(NPV)。结果:柱头针与注射器针FNA在标本充分性(85.34% vs. 87.13%)、敏感性(95.24% vs. 96.99%)、特异性(78.57% vs. 78.05%)、诊断准确性(93.96% vs. 95.07%)、PPV (98.16% vs. 97.52%)、NPV (57.89% vs. 74.42%)方面均无显著差异。两种方法的性能指标在每个操作人员的数据中也没有显着差异。结论:本研究发现,在甲状腺FNA的标本充分性或诊断率方面,柱头针与注射器针相比没有显著的优势。临床试验号:不适用。
期刊介绍:
BMC Endocrine Disorders is an open access, peer-reviewed journal that considers articles on all aspects of the prevention, diagnosis and management of endocrine disorders, as well as related molecular genetics, pathophysiology, and epidemiology.