Description

Miceli et al described the findings in a patient with pulmonary aspergillosis during the recovery from neutropenia. This is termed the Pulmonary Immune Reconstitution Inflammatory Syndrome (IRIS). The authors are from the University of Arkansas.


 

NOTE: Patients with HIV disease will have an IRIS as T cell immune function recovers. With neutropenia the immune system is not reconstituting but rather the effector cells.

 

Features:

(1) presence of pulmonary aspergillosis

(2) new onset or worsening of clinical and radiologic pulmonary findings consistent with fungal pneumonia

(3) change coincides with restoration of the neutrophil count

(4) >= 50% decrease in the serum galactomannan index titers on 2 consecutive tests performed within 4 days of each other without a change in therapy

(5) absence of new extrapulmonary lesions of aspergillosis

(6) absence of other processes (medication side effect, onset of a new infection, progression of another infection, etc.)

(7) biopsy shows an exuberant inflammatory response and/or well-formed granulomatous inflammation

 

The authors monitored patients with the serum galactomannan index titers. A fall in titers predicted eventual improvement, while a rise indicates progressive aspergillosis and the need for more intensive antifungal therapy.

 


To read more or access our algorithms and calculators, please log in or register.