The Surgical Path: Peritonectomy and Enterolysis for EPS

When medical treatments and nutritional support are no longer enough to manage Encapsulating Peritoneal Sclerosis (EPS)—or in the event of a sudden, severe complication—surgery becomes a critical consideration. Because EPS physically encases the intestines, surgical intervention aims to restore the movement of the bowels and resolve dangerous obstructions ^[1][2].

When Is Surgery Considered?

The decision to operate is highly individualized and balances your symptoms, nutritional status, and operative risk. Surgery is generally considered for:

1. Persistent Obstruction: Recurring bouts of bowel obstruction that do not improve with medical therapy, preventing adequate nutrition ^[1].
2. Emergency Situations: Complete bowel obstruction, ischemia (loss of blood flow to the gut), or a perforation (a hole in the bowel wall) ^[2]. Note: Emergency complications require immediate surgical assessment and cannot wait for long-term nutritional optimization.

The Procedure: Peritonectomy and Enterolysis

Operations vary depending on the severity of the disease. The surgical goal is to free the intestines from their fibrous cocoon. This often involves:

• Peritonectomy: The surgical removal of the thickened, scarred peritoneal membrane ^[3].
• Enterolysis (Capsule Dissection): The meticulous peeling or cutting away of the fibrous tissue that has fused loops of the intestine together ^[4].

This is a highly demanding procedure. The surgeon must work with extreme precision, as removing the peritoneum can itself injure the vulnerable, thinned bowel walls beneath ^[5]. In some cases, a bowel resection (removing a damaged portion of the intestine) or the creation of a stoma (an opening on the abdomen for waste to exit) may be necessary ^[3].

Understanding the Risks and Outcomes

It is important to be honest about the gravity of this operation. Data from specialized centers highlights both the potential benefits and the severe risks.

• Surgical Mortality: In one large, single-center surgical series of 243 patients, the overall EPS-related mortality rate was 25.1% over the study period, including both immediate postoperative deaths and later disease-related mortality ^[6]. It is crucial to understand that this figure represents a specific, highly selected group of surgical patients, not your individual operative risk.
• Bowel Injury: The risk of accidentally injuring the bowel during surgery is significant. Depending on the severity of calcification and scarring, injury rates vary widely ^[7].
• Postoperative Complications: Patients frequently face prolonged ileus (where the bowel remains paralyzed for a time), infections, anastomotic leaks (leaks where the bowel was rejoined), or the need for prolonged TPN ^[6].
• Recurrence: Surgery is not always a permanent cure. In the large 243-patient series, nearly 24% of patients eventually required a second operation because the symptoms or scar tissue returned ^[6].

Weighing the Evidence

An observational meta-analysis found that patients who underwent surgery had a lower risk of death (an Odds Ratio of 0.25) compared to those who received only medical treatment ^[8]. However, this statistic must be interpreted with extreme caution. This was not a randomized trial; it reflects selection bias, meaning the patients selected for surgery may have differed fundamentally (e.g., in overall health or disease stage) from those who were not. It does not prove that surgery is superior for every patient ^[8].

The Necessity of Specialized Centers

Because EPS is rare and the surgery is technically demanding, general surgeons may only see one or two cases in their career. For the best chance at a successful outcome, elective surgery should be evaluated and performed at a specialized EPS center where multidisciplinary teams—including experienced surgeons, nephrologists, and nutrition specialists—work together ^[1][9]. Seeking an expert opinion is vital, though it should never delay treatment for an acute emergency.