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Factors affecting cytological results of endoscopic ultrasound guided-fine needle aspiration during learning.
Lai, Jian-Han; Lin, Hsiang-Hung; Lin, Ching-Chung.
Affiliation
  • Lai JH; Division of Gastroenterology, Department of Internal Medicine, Mackay Memorial Hospital, No. 92, Sec. 2, Chung-Shan North Road, Taipei, Taiwan.
  • Lin HH; Mackay Medicine, Nursing and Management College, Taipei, Taiwan.
  • Lin CC; Mackay Medical College, New Taipei, Taiwan.
Diagn Pathol ; 15(1): 17, 2020 Feb 15.
Article in En | MEDLINE | ID: mdl-32061261
BACKGROUND: Endoscopic ultrasound-guided fine needle aspiration (EUS-FNA) is a standard procedure used to obtain tissue samples for diagnosis of solid retroperitoneal tumours. However, this procedure demands high technical expertise and requires a strong learning curve. Our aim was to identify factors associated with false-negative EUS-FNA results during the learning for endoscopists. METHODS: Our retrospective analysis was based on the EUS-FNA specimens collected by two novice endoscopists in 200 patients with retroperitoneal lesions who had confirmed image- or tissue-based diagnoses of malignancy or benign lesions. RESULTS: In the first 40 performances endoscopists, the false-negative diagnostic rate of EUS-FNA was higher among patients with chronic pancreatitis than in patients without chronic pancreatitis. Patients who underwent FNA through the trans-duodenal puncture route also had lower success cytological diagnosis rate than through the trans-gastric puncture route. The rate of successful cytological diagnoses with EUS-FNA improved after 40 procedures and was not influenced by chronic pancreatitis presentation or difference puncture route. CONCLUSION: Regarding the learning curve, more than 40 procedures were required to achieve a stable success rate of EUS-FNA. Chronic pancreatitis and trans-duodenal puncture route are the predictive factors for a false-negative FNA cytological result during learning. TRIAL REGISTRATION: This was a retrospective study.
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Full text: 1 Collection: 01-internacional Database: MEDLINE Main subject: Pancreas / Pancreatic Diseases / Pancreatic Neoplasms / Pancreatitis, Chronic / Learning Type of study: Observational_studies / Prognostic_studies / Risk_factors_studies Limits: Adult / Aged / Female / Humans / Male / Middle aged Language: En Journal: Diagn Pathol Journal subject: PATOLOGIA Year: 2020 Document type: Article Affiliation country: Country of publication:

Full text: 1 Collection: 01-internacional Database: MEDLINE Main subject: Pancreas / Pancreatic Diseases / Pancreatic Neoplasms / Pancreatitis, Chronic / Learning Type of study: Observational_studies / Prognostic_studies / Risk_factors_studies Limits: Adult / Aged / Female / Humans / Male / Middle aged Language: En Journal: Diagn Pathol Journal subject: PATOLOGIA Year: 2020 Document type: Article Affiliation country: Country of publication: