PCP (Pneumocystis jiroveci pneumonia) is one of the important opportunistic infections in immunocompromised patients including HIV-infected patients, transplant recipients, and immunosuppressant users. About one third of non-HIV patients with PCP have the evidence of co-infection with CMV. In this difficult clinical situation, physicians have difficulty to decide on whether anti-CMV treament will help patients with any evidence of CMV co-infection. However, there is no objective test to differentiate true co-infection of CMV from innocent bystander of CMV in those with PCP. The investigators thus evaluate the usefulness of CMV-specific ELISPOT assay in patients with PCP to differentiate true co-infection of CMV from inocent bystander of CMV. This findings may guide physicians to decide anti-CMV treatment in patients with PCP and CMV co-infection.
PCP (Pneumocystis jiroveci pneumonia) is one of the important opportunistic infections in immunocompromised patients including HIV-infected patients, transplant recipients, and immunosuppressant users. About one third of non-HIV patients with PCP have the evidence of co-infection with CMV. In this difficult clinical situation, physicians have difficulty to decide on whether anti-CMV treament will help patients with any evidence of CMV co-infection. However, there is no objective test to differentiate true co-infection of CMV from innocent bystander of CMV in those with PCP. The investigators thus evaluate the usefulness of CMV-specific ELISPOT assay in patients with PCP to differentiate true co-infection of CMV from inocent bystander of CMV. This findings may guide physicians to decide anti-CMV treatment in patients with PCP and CMV co-infection.
Study Type
OBSERVATIONAL
Enrollment
76
Asan Medical Center
Seoul, South Korea
CMV co-infection
CMV co-infection is defined as (1) positive BAL (bronchoalveolar lavage fluid) CMV culture and (2) ganciclovir therapy for at least 1 week.
Time frame: 1 month after the diagnosis of PCP
overall mortality
Time frame: 1 month after the diagnosis of PCP
innocent bystander CMV infection
innocent bystander CMV infection * positive blood CMV antigenemia and/or positive blood or BAL CMV qPCR without positive BAL CMV culture * clinical improvement without ganciclovir therapy for at least 1 week
Time frame: 1 month after the diagnosis of PCP
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