Gastric Outlet Obstruction Palliation: A Novel Stent-Based Solution

Area of Science:

• Gastroenterology
• Interventional Endoscopy
• Oncology

Background:

• Gastric outlet obstruction (GOO) is a significant complication following esophagectomy for advanced esophageal cancer, severely impacting patient quality of life.
• Traditional palliative methods for GOO include chemotherapy, radiation, tumor ablation, and stricture dilation, each with limitations.
• Palliative stenting is an option, but challenges like stent migration and tumor ingrowth persist.

Observation:

• A patient with recurrent, metastatic esophageal cancer post-esophagectomy developed severe GOO, leading to dehydration and intractable emesis.
• A novel hybrid stent technique was employed, involving a silicone salivary bypass tube and a nitinol tracheobronchial stent placed endoscopically and fluoroscopically.
• The silicone tube was positioned across the pylorus, and the nitinol stent was inserted through it to ensure luminal patency.

Findings:

• The hybrid stent approach successfully relieved the patient's pre-operative symptoms of GOO, including dehydration and emesis.
• The flared silicone tube design minimized stent migration and hindered tumor ingrowth.
• The nitinol stent provided structural support, ensuring patency despite the soft nature of the silicone tube.

Implications:

• This hybrid stent strategy presents a unique and effective endoscopic solution for managing malignant GOO after esophagectomy.
• The technique addresses common complications associated with palliative stenting, offering improved outcomes for end-stage esophageal cancer patients.
• This approach expands the endoscopic treatment options for malignant GOO, potentially enhancing palliation and quality of life.