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  • Title: Clinical impact of endoscopic ultrasound-guided fine needle aspiration of celiac axis lymph nodes (M1a disease) in esophageal cancer.
    Author: Parmar KS, Zwischenberger JB, Reeves AL, Waxman I.
    Journal: Ann Thorac Surg; 2002 Mar; 73(3):916-20; discussion 920-1. PubMed ID: 11899201.
    Abstract:
    BACKGROUND: The purpose of this study was to determine how endoscopic ultrasound (EUS)-guided fine needle aspiration (FNA) with a histology confirmed biopsy protocol impacted on staging and managing esophageal carcinoma in terms of resectability and neoadjuvant therapy (chemotherapy and radiation therapy). METHODS: The records of 40 consecutive patients diagnosed with esophageal cancer referred for EUS staging were reviewed. Computed tomography (CT) scan then EUS imaging and EUS-guided FNA staging, including involvement of celiac node (M1a stage), surgical pathology, and subsequent treatment were correlated. Through-the-scope balloons were used for dilatation when needed to examine the celiac nodes. RESULTS: All 40 patients followed the protocol and were successfully imaged by EUS. Sixteen of the 40 required esophageal dilatation using the through-the-scope balloon. No complications were observed from esophageal dilatation for EUS. Twenty-three (58%) met the criteria for EUS-guided FNA biopsy from a total of 40 EUS imaging procedures. Twenty (87%) of the 23 EUS-guided FNA were directed toward the celiac nodes; 18 (90%) of the 20 were positive for malignancy and were treated by chemoradiation therapy and 2 (10%) FNA were negative for malignancy and were treated by surgical resection. The CT scan was able to detect only 6 (30%) of 20 cases of suspicious celiac lymph nodes, of which 5 (83%) were positive for malignancy by FNA. CONCLUSIONS: EUS-guided FNA of celiac nodes (20 patients) directed management in all patients biopsied. EUS-guided FNA is superior to CT scan for diagnosing M1a disease. Protocol-directed EUS-guided FNA is a pivotal study when used in conjunction with stage-oriented treatment protocols for esophageal carcinoma.
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