Types of Partial Gastrectomy

Partial gastrectomy is a surgical procedure in which a portion of the stomach is removed to treat a range of gastrointestinal conditions, including stomach cancer, severe ulcers, and non cancerous tumors. Depending on the location and extent of the disease, surgeons may choose from several types of partial gastrectomy.

It is commonly recommended for patients dealing with conditions such as stomach cancer, severe peptic ulcers, gastrointestinal bleeding, and non-cancerous tumors. In some cases, it is also used to manage certain metabolic and weight related disorders. By removing the diseased or affected part of the stomach, partial gastrectomy helps relieve symptoms, prevent complications, and improve long term health outcomes.

What Is Partial Gastrectomy?

Partial gastrectomy involves surgically removing part of the stomach while preserving the rest of the organ. Unlike a total gastrectomy, which involves the complete removal of the stomach, a partial gastrectomy retains some digestive function by leaving a portion of the stomach intact. The remaining part of the stomach is then reconnected to the small intestine, allowing the patient to continue eating and digesting food, albeit with some modifications.

This procedure is typically performed when diseases are localized to a specific area of the stomach. Common reasons for undergoing a partial gastrectomy include early-stage stomach cancer, peptic ulcers that don’t respond to medical therapy, gastrointestinal stromal tumors (GISTs), or severe bleeding and inflammation.

Types of Partial Gastrectomy

There are several types of partial gastrectomy, each tailored to the location of the stomach disease. The choice of procedure depends on factors like tumor size, location, patient health, and the surgeon’s expertise.

1. Distal Gastrectomy :- Distal gastrectomy is the most common type of partial gastrectomy. In this procedure, the lower portion of the stomach (also known as the distal part) is surgically removed. This part is typically where ulcers or cancers often develop. Once removed, the surgeon reconnects the remaining upper stomach to the small intestine.

   There are two primary ways to reconnect the stomach to the intestines :-

   • Billroth I (gastroduodenostomy) :- The stomach is directly attached to the duodenum, the first part of the small intestine.

   • Billroth II (gastrojejunostomy) :- The stomach is attached to the jejunum, the second part of the small intestine, bypassing the duodenum.

2. Proximal Gastrectomy :- Proximal gastrectomy involves the removal of the upper part of the stomach, usually in cases where cancer or disease is located near the junction between the esophagus and the stomach (gastroesophageal junction). This type of surgery preserves more of the stomach than a total gastrectomy, aiming to retain some digestive function.

   Reconstruction after proximal gastrectomy can be more complex due to the proximity to the esophagus. It often involves connecting the remaining stomach directly to the esophagus or creating a gastric tube that mimics the function of the removed portion.

3. Subtotal Gastrectomy :- Subtotal gastrectomy refers to the removal of a large portion of the stomach, typically about 70-80%, while still leaving a small remnant. Depending on the location of the disease, the surgery can remove either a distal or proximal segment, but it leaves just enough stomach to maintain some digestive function.

   The remaining stomach is reattached to the small intestine, and the method of reconstruction may vary. Subtotal gastrectomy is usually performed for more advanced but still localized cancers.

4. Sleeve Gastrectomy (Vertical Gastrectomy) :- Though primarily associated with bariatric (weight loss) surgery, sleeve gastrectomy is technically a form of partial gastrectomy. In this procedure, a large portion of the stomach along the greater curvature is removed, leaving behind a narrow, tube-shaped stomach or “sleeve.”

   Unlike other types of partial gastrectomy performed for cancer or ulcers, sleeve gastrectomy is typically done to help obese patients lose weight. It significantly reduces stomach capacity and also impacts hunger hormones, helping patients feel full with less food.

Open vs. Laparoscopic Partial Gastrectomy

Partial gastrectomy can be performed through open surgery or laparoscopic (minimally invasive) surgery. Open surgery involves a larger abdominal incision, while laparoscopic surgery uses small incisions and a camera-guided tool to perform the procedure.

Laparoscopic gastrectomy typically offers faster recovery times, less postoperative pain, and shorter hospital stays. However, the choice of approach depends on the complexity of the disease and the surgeon’s expertise.

Recovery and Postoperative Care

Recovery from partial gastrectomy can vary depending on the extent of the surgery, the type of reconstruction, and the patient’s general health. Most patients stay in the hospital for 5 to 10 days post surgery and gradually resume eating soft foods.

Common dietary adjustments include :-

1. Eating smaller, more frequent meals

2. Avoiding high-fat and sugary foods

3. Taking vitamin supplements, especially if large portions of the stomach were removed

Long term follow up is essential to monitor for nutritional deficiencies, dumping syndrome, or recurrence of disease.

Conclusion

Partial gastrectomy is a vital surgical option for treating a variety of stomach-related diseases, from early stage cancer to severe ulcers. Understanding the different types distal, proximal, subtotal, and sleeve gastrectomy can help patients and caregivers better grasp the surgical options available. Each type of partial gastrectomy offers its own benefits and considerations depending on the location and severity of the disease.