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What is Stomach Cancer Surgery (Gastrectomy)?
Gastrectomy is the surgical resection of all (total gastrectomy) or part (subtotal/partial gastrectomy) of the stomach to eradicate gastric carcinoma or gastrointestinal stromal tumors (GIST). In cancer surgery, D2 lymphadenectomy—removing perigastric and extraperigastric lymph nodes along major blood vessels—is the standard oncologic approach. Digestive continuity is re-established using a Roux-en-Y or Billroth reconstruction.
Who Needs Gastrectomy?
Surgery is indicated for resectable gastric adenocarcinomas, large GISTs, gastric neuroendocrine tumors, or prophylactic cases with hereditary diffuse gastric cancer (CDH1 gene mutation).
Key clinical indicators include:
- Endoscopy and biopsy-proven gastric adenocarcinoma or GIST.
- Uncontrollable tumor bleeding, gastric outlet obstruction, or perforation.
- Absence of extensive peritoneal carcinomatosis or distant liver metastasis on PET-CT.
Types of Gastrectomy
- Subtotal / Distal Gastrectomy: Removal of the lower portion of the stomach; performed when the tumor is in the antrum or pylorus.
- Total Gastrectomy: Complete removal of the stomach; indicated for proximal, mid-body, or diffuse gastric tumors.
- Proximal Gastrectomy: Removal of the upper portion of the stomach and cardia for gastroesophageal junction tumors.
- D2 Lymph Node Dissection: Systematic clearance of lymph node stations around the stomach, celiac axis, and major arteries.
Benefits of Gastrectomy
- Direct curative intent for resectable gastric malignancies.
- Relief from tumor-related gastric obstruction, nausea, and chronic gastrointestinal bleeding.
- Pathological margin clearance and accurate nodal staging.
- Minimal invasive options (laparoscopic/robotic) reduce post-operative pain and hospital stay.
What to Expect Before Surgery?
- Staging Laparoscopy: Performed in selected cases to rule out microscopic peritoneal spread before major resection.
- Nutritional Optimization: High-protein oral supplements or enteral nutrition support for malnourished patients.
- Cardiopulmonary Assessment: Pre-anesthesia fitness and baseline lung capacity evaluation.
- Neo-adjuvant Therapy Review: Completion of preoperative chemotherapy cycles (e.g., FLOT regimen) when indicated.
Complete Procedure
- General anesthesia administration with arterial monitoring.
- Abdominal access via open midline incision or laparoscopic/robotic ports.
- Mobilization of the stomach and greater/lesser omentum.
- Skeletonization of major vessels and systematic D2 lymph node clearance.
- Resection of the stomach segment containing the tumor with adequate surgical margins.
- Rebuilding the digestive tract: attaching the esophagus or remaining stomach pouch to the small intestine (Roux-en-Y jejunal limb).
- Feeding jejunostomy tube placement (if required) and abdominal drain placement.
- Layered abdominal closure.
What to Expect During Surgery?
Procedure duration ranges from 3.5 to 6 hours depending on reconstruction complexity, surgical approach, and extent of lymph node clearance.
Laparoscopic / Robotic vs Open Gastrectomy
| Feature | Open Gastrectomy | Laparoscopic / Robotic |
|---|---|---|
| Incision | Long upper abdominal incision. | 5 keyhole ports + 1 small retrieval incision. |
| Blood Loss | Moderate. | Lower due to high-definition magnification. |
| Hospital Stay | 7 - 10 Days. | 5 - 7 Days. |
| Recovery | 6 - 8 Weeks. | 3 - 5 Weeks. |
Success Rate and Safety
When combined with D2 lymphadenectomy and perioperative chemotherapy, 5-year survival for early to localized gastric cancer ranges from 60% to 80%. High-volume centers show low surgical mortality (<2-3%).
Gastrectomy Surgery Cost Estimate
| Procedure Type | Open Surgery (INR) | Laparoscopic / Robotic (INR) |
|---|---|---|
| Subtotal Gastrectomy | ₹2,50,000 - ₹4,50,000 | ₹3,80,000 - ₹6,00,000 |
| Total Gastrectomy + D2 Dissection | ₹3,20,000 - ₹5,50,000 | ₹4,50,000 - ₹8,00,000+ |
Disclaimer: Total cost depends on ICU stay duration, enteral feeding requirements, and stapler reloader usage.
Recovery Guide & Post-Operative Care
Recovery Timeline
- Day 0-2: ICU or High Dependency monitoring; NPO status with IV fluids; abdominal drain monitoring.
- Day 3-4: Fluoroscopic or clinical check for anastomosis leak; start small sips of water.
- Day 5-7: Progression to clear liquids and soft puree meals eaten in small, frequent portions.
- Month 1-3: Dietary adaptation to a "no-stomach" lifestyle; lifelong Vitamin B12 supplementation if total gastrectomy was performed.
Post-Op Precautions & Care
- Dumping Syndrome Prevention: Eat 6-8 small meals per day; avoid simple sugars and refrain from drinking liquids during meals.
- Nutritional Supplements: Take prescribed Vitamin B12, iron, calcium, and Vitamin D supplements regularly.
- Activity: Walk daily to build stamina; avoid heavy lifting for 6 to 8 weeks.
Frequently Asked Questions
How can a person eat without a stomach after total gastrectomy?⌄
The esophagus is connected directly to the small intestine (Roux-en-Y reconstruction). Over time, the small intestine adapts to hold small amounts of food. Patients eat 6 to 8 small, calorie-dense meals a day.
What is Dumping Syndrome and how is it managed?⌄
Dumping syndrome occurs when food moves too quickly into the small intestine, causing nausea, dizziness, and diarrhea. It is managed by eating small meals, separating liquids from solid food, and limiting refined sugars.
Why do I need Vitamin B12 injections after gastrectomy?⌄
The stomach produces intrinsic factor, which is necessary to absorb Vitamin B12. Without a stomach, lifelong Vitamin B12 injections or high-dose supplements are required to prevent anemia and nerve damage.
How much weight will I lose after surgery?⌄
Most patients lose 10% to 15% of their body weight in the first few months. Weight typically stabilizes as the body adapts to new dietary habits.
What is D2 lymphadenectomy?⌄
D2 lymphadenectomy is the surgical removal of lymph nodes around the stomach and adjacent major blood vessels. It provides accurate staging and reduces cancer recurrence risk.