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Endoscopic Polypectomy
What is Endoscopic Polypectomy?
Endoscopic polypectomy is a minimally invasive medical procedure used to remove abnormal tissue growths known as polyps from the lining of the gastrointestinal (GI) tract. These polyps are typically benign (non-cancerous), but some types—particularly adenomatous polyps—may have the potential to develop into cancer over time.
Polypectomy is commonly performed during routine colonoscopy or upper GI endoscopy (gastroscopy). The aim is both diagnostic (to examine the polyp histologically) and therapeutic (to prevent future complications such as bleeding, obstruction, or cancerous transformation).
The removal is achieved using special endoscopic tools:
· Cold snare polypectomy involves mechanical cutting without thermal energy and is usually reserved for small polyps.
· Hot snare polypectomy uses electric current (electrocautery) to resect and coagulate tissue simultaneously, commonly used for larger or vascularized polyps.
The excised tissue is retrieved and sent for histopathological examination to determine its nature—benign, precancerous, or malignant. The results help guide the next steps in patient management, such as surveillance intervals or further treatment.
Endoscopic polypectomy is considered safe, efficient, and cost-effective. It significantly reduces the risk of colorectal and gastric cancers when performed timely and appropriately.
In Which Cases Is Polypectomy Required?
Polypectomy is indicated when polyps are:
· Adenomatous or dysplastic, with a risk of malignancy.
· Large in size (usually >10 mm), regardless of histology.
· Symptomatic, causing bleeding, obstruction, or pain.
· Detected in high-risk patients, such as those with a family history of colorectal or gastric cancer.
· Found in patients with hereditary syndromes like Familial Adenomatous Polyposis (FAP) or Peutz-Jeghers Syndrome.
Common Sites and Indications:
· Colon and Rectum: Colorectal polyps are the most frequent and potentially precancerous. Early removal during colonoscopy significantly reduces the incidence of colorectal cancer. Polypectomy is essential in colorectal cancer prevention programs.
· Stomach: Gastric polyps are often benign but may harbor dysplasia or early malignancy. Fundic gland polyps, hyperplastic polyps, and adenomas may be resected based on size and histologic features.
· Duodenum and Small Intestine: Less common, but polyps here are often removed if symptomatic or large, or in patients with syndromic conditions.
· Esophagus: Rare, but removal may be required if they cause symptoms or have neoplastic potential.
Polypectomy is also used to manage:
· Actively bleeding polyps (as a source of chronic anemia or acute GI hemorrhage),
· Large sessile polyps through advanced techniques like Endoscopic Mucosal Resection (EMR) or Endoscopic Submucosal Dissection (ESD),
· Multiple polyps in polyposis syndromes, requiring frequent surveillance and repeated removals.
Procedure Overview
The process is typically done in an outpatient setting and includes:
1. Sedation or anesthesia for patient comfort.
2. Endoscope insertion to visualize the GI tract and locate the polyp.
3. Snare loop placement around the polyp stalk or base.
4. Polyp resection, using either cold or hot snare depending on the characteristics.
5. Hemostasis control if there is bleeding (e.g., with clips, cautery, or adrenaline injection).
6. Specimen retrieval for pathology.
The average procedure time is 15–45 minutes, depending on the number and size of polyps. Most patients can resume normal activity the same day or the following day.
Post-Polypectomy Considerations
After the procedure:
· Mild abdominal discomfort, gas, or bloating may occur.
· Bleeding is rare but possible—particularly within 7 days of hot snare polypectomy.
· Perforation is an extremely rare complication, more likely with large sessile lesions.
Aftercare Recommendations:
· Avoid heavy lifting and vigorous physical activity for 24 hours.
· Start with a light diet and gradually return to a normal routine.
· Follow up with your physician for pathology results and surveillance planning.
Surveillance:
The follow-up plan depends on:
· Polyp type (adenomatous, hyperplastic, serrated, etc.),
· Size and number of polyps,
· Patient risk factors (e.g., family history, inflammatory bowel disease),
· Completeness of polyp removal.
In general, surveillance colonoscopy is recommended every 3 to 5 years for high-risk patients, or sooner in syndromic cases.
Conclusion
Endoscopic polypectomy is a cornerstone of gastrointestinal preventive care. By removing precancerous or symptomatic polyps during routine endoscopy, the procedure plays a vital role in the early detection and prevention of GI cancers—especially colorectal cancer.
· Safe and efficient: Performed without the need for open surgery.
· Diagnostic and therapeutic: Helps identify polyp type and prevent complications.
· Essential for screening programs: Particularly in individuals over age 45 or those with family history.
If polyps are identified during endoscopy, following your physician’s recommendation for polypectomy can significantly reduce future health risks and ensure timely intervention.
