Management of Partial Gastric Outlet Obstruction

Initial Stabilization and Workup

The American College of Gastroenterology recommends placing a nasogastric tube for gastric decompression to prevent aspiration pneumonia and relieve symptoms 1
Administer IV isotonic crystalloids for fluid resuscitation to correct dehydration and electrolyte abnormalities from vomiting, as recommended by the American Society of Anesthesiologists 1, 2
Provide anti-emetics for symptom control, such as dopamine receptor antagonists like metoclopramide or prochlorperazine, as suggested by the National Comprehensive Cancer Network 3, 1

Obtain upper endoscopy immediately to visualize the obstruction, obtain multiple biopsies to differentiate benign from malignant causes, and assess feasibility of endoscopic intervention, as recommended by the American Society for Gastrointestinal Endoscopy 1, 2
Order CT scan with oral and IV contrast to determine location, extent of obstruction, assess for metastatic disease, and evaluate resectability, as suggested by the National Comprehensive Cancer Network 1, 2

For malignant gastric outlet obstruction, surgical resection is the primary treatment, providing the longest median symptom-free and overall survival, as recommended by the National Comprehensive Cancer Network 1, 2
Laparoscopic gastrojejunostomy is recommended for patients with good functional status who are surgically fit, as it provides lower blood loss, shorter hospital stay, and more durable long-term results with lower reintervention rates, as suggested by the Society of American Gastrointestinal and Endoscopic Surgeons 1, 4
Endoscopic self-expanding metal stent placement is preferred for unresectable disease with life expectancy <2 months or poor surgical candidates, providing faster oral intake resumption and immediate symptom relief, as recommended by the American Society for Gastrointestinal Endoscopy 1, 2, 4

If oral intake cannot be resumed within 5-7 days, provide nutritional support via jejunal feeding tube placed distal to the obstruction, as suggested by the American Society for Parenteral and Enteral Nutrition 1
Avoid overly aggressive enteral or parenteral nutrition in patients with very limited life expectancy, as this can increase suffering, as recommended by the National Comprehensive Cancer Network 3

Never place feeding tubes distal to obstruction in cases requiring anatomic surgical correction, as they require definitive surgical repair, not nutritional bypass, as warned by the American College of Surgeons 1
Avoid stent placement without first draining significant ascites due to increased infection risk, as cautioned by the Society of Interventional Radiology 1, 4