PCP prophylaxis post renal transplant

Approximately 5% of patients develop Pneumocystis carinii pneumonia (PCP) after renal transplantation if they do not receive prophylaxis.

PCP is a severe disease, with a very high fatality rate. Therefore, all renal transplant recipients should receive PCP prophylaxis.

The treatment of choice is trimethoprim-sulfamethoxazole (TMP-SMX), at a dose of 80/400 mg/day or 160/800 mg every other day, for at least 4 months.

Patients who are treated for rejection should receive TMP-SMX prophylaxis for 3-4 months.

In the case of TMP-SMX intolerance, aerosolized pentamidine (300 mg once or twice per month) is an alternative for prophylaxis.

The first-line treatment of PCP is high-dose TMP-SMX. Patients with a PaO2 of <70 mmHg initially should be treated parenterally, and the administration of additional steroids should be considered.