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EUS-guided mucosectomy for gastrointestinal cancer
1Echoendoscopy Unit, Centro Médico Delfos., A Coruña, Spain.
Revista Espanola De Enfermedades Digestivas
|October 20, 2006
Summary
Early diagnosis of gastrointestinal cancer via endoscopic ultrasonography (EUS) and endoscopic mucosal resection (EMR) improves survival. EUS-assisted EMR is safe and effective for superficial cancers, with recurrence linked to cancer multiplicity.
Area of Science:
- Gastroenterology
- Oncology
- Endoscopic Imaging
Background:
- Early diagnosis of gastrointestinal cancer is crucial for improving patient prognosis and survival.
- Intramucosal localization, confirmed by endoscopic ultrasonography (EUS) or 20-MHz miniprobes (MPs), is key for early detection (T1 stage).
- Endoscopic mucosal resection (EMR) is an established effective treatment for these early-stage lesions.
Purpose of the Study:
- To evaluate the safety and efficacy of echoendoscopically-assisted EMR for superficial gastrointestinal cancers.
- To assess recurrence rates and identify potential factors influencing them.
Main Methods:
- A cohort of 18 patients with superficial gastrointestinal cancer or severe gastric dysplasia was studied.
- Nine patients underwent classic EMR guided by EUS or 7.5/20-MHz miniprobe exploration.
- Lesion depth was assessed using ultrasonography.
Main Results:
- Ultrasonography confirmed T1 stage in most cases, with one esophageal case showing Tis and gastric dysplasias showing T0.
- Classic EMR was performed without complications in the 9 patients.
- All 9 patients remain alive, with one case of metachronous esophageal recurrence.
Conclusions:
- Echoendoscopically-assisted EMR is a safe and effective endoscopic management strategy for superficial gastrointestinal cancers (esophageal, gastric, colorectal).
- Cancer multiplicity appears to be the primary factor influencing recurrence rates.
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