CPT® Code 0586T

1. Indications

The islet cell transplant procedure is indicated for patients with Type 1 diabetes who meet specific criteria, including:

• Type 1 Diabetes Mellitus Patients diagnosed with Type 1 diabetes, characterized by the autoimmune destruction of pancreatic beta cells, leading to insulin deficiency.
• Severe Hypoglycemia Individuals experiencing recurrent episodes of severe hypoglycemia that pose a risk to their health and safety.
• Inadequate Glycemic Control Patients who have difficulty achieving adequate glycemic control despite intensive insulin therapy and management.
• Desire for Insulin Independence Candidates who wish to reduce or eliminate their dependence on exogenous insulin therapy.

2. Procedure

The islet cell transplant procedure involves several critical steps, which are detailed as follows:

• Step 1: Donor Islet Cell Harvesting The procedure begins with the harvesting of islet cells from a deceased donor's pancreas. This process utilizes an automated filtering method to extract the islets efficiently while preserving their viability for transplantation.
• Step 2: Preparation of Islet Cells Once harvested, the islet cells undergo a purification process to ensure that they are suitable for transplantation. This step is crucial as it prepares the cells for implantation into the recipient's pancreas.
• Step 3: Catheter Placement The next step involves the placement of a catheter into the portal vein of the liver. This is typically performed under imaging guidance, such as X-ray and ultrasound, to ensure accurate placement and minimize complications.
• Step 4: Infusion of Islet Cells After the catheter is securely positioned, the purified donor islet cells are infused through the catheter directly into the portal vein. This infusion process is carefully monitored and usually takes about one hour to complete.
• Step 5: Post-Procedure Monitoring Following the infusion, the patient is closely monitored for any immediate complications and to assess the initial function of the transplanted islet cells.

3. Post-Procedure

After the islet cell transplant, patients require careful post-procedure management to ensure the success of the transplant. This includes monitoring for signs of rejection and complications. Patients are prescribed immunosuppressive medications to prevent their immune system from attacking the transplanted islet cells. Regular follow-up appointments are necessary to assess the function of the transplanted islets and to adjust immunosuppressive therapy as needed. Patients may also need to undergo routine blood glucose monitoring to manage their diabetes effectively. The overall recovery process can vary, and patients are advised to adhere to their healthcare provider's recommendations for optimal outcomes.