Which treatment is typically required for chronic transplant rejection?

• A. Immunosuppressants
• B. Retransplantation
• C. Steroid therapy
• D. Surgical intervention

Answer: (B)

Chronic transplant rejection is characterized by the gradual deterioration of the transplanted organ's function over time, often occurring months to years after the initial transplant. It involves a complex interplay of the immune system and the target organ, leading to fibrosis and loss of function that is not reversible by conventional means.

Retransplantation is typically the required treatment in cases of chronic transplant rejection. Once chronic rejection sets in, the damage to the transplanted organ is often irreversible, and the only viable solution to restore function is to perform a retransplant of that organ. This option is pursued after evaluating the underlying cause of rejection, the patient’s overall health, and their specific circumstances concerning organ availability.

In contrast, other treatment options like immunosuppressants and steroid therapy are generally aimed at preventing or treating acute rejection and managing ongoing rejection processes rather than addressing chronic rejection specifically. Surgical interventions might be necessary for specific complications related to rejection but do not address the underlying cause or restore function lost due to chronic rejection. Therefore, retransplantation stands out as the necessary course of action when chronic rejection has progressed beyond the point of salvage for the original transplant.