Turk J Gastroenterol
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Turk J Gastroenterol · Oct 2011
Meta AnalysisEfficacy evaluation of imatinib in the treatment of patients with gastrointestinal stromal tumors.
Published data on the dose of imatinib to treat gastrointestinal stromal tumors seemed inconclusive. To derive a more precise estimation of dose of imatinib to treat gastrointestinal stromal tumors, a meta-analysis was performed. ⋯ The meta-analysis indicated that cumulative response for patients with low-dose imatinib showed no significant difference compared with that with high-dose imatinib. However, high-dose imatinib brought patients more toxic effect and more dosage adjustment for down regulation was made for these patients with severe toxic effect. With long follow-up of the patients, result of neither progression-free survival nor overall survival reached statistical significance between low-dose arm and high-dose arm.
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Turk J Gastroenterol · Oct 2011
Comparative StudyComparison of 19- and 22-gauge needles in EUS-guided fine needle aspiration in patients with mediastinal masses and lymph nodes.
Endoscopic ultrasound-guided fine needle aspiration is an established tissue-acquisition technique for mediastinal lesions. However, there are limitations to endoscopic ultrasound-guided fine needle aspiration of mediastinal masses in certain neoplasms and granulomatous diseases. Most studies have used 22-gauge aspiration and/or 19-gauge Tru-cut needles, and only limited data exist on larger-caliber aspiration needles. We aimed to compare prospectively the diagnostic yield of endoscopic ultrasound-guided fine needle aspiration using 19- and 22-gauge aspiration needles in patients with mediastinal lesions of unknown origin. ⋯ As concerns endoscopic ultrasound-guided fine needle aspiration of mediastinal masses and lymph nodes, the diagnostic sensitivity of aspirated material obtained using 19- and 22-gauge fine needle aspiration needles was found to be comparable in our study.