Aspergilloses respiratoires complexes : difficultés diagnostiques et thérapeutiques

[Lung mycosis in non neuropenic patients]

Lung mycosis is rare. Diagnosis and treatment must be done the earliest possible.

METHODS

It is about a retrospective study on clinical records including patients hospitalized for lung infection.

RESULTS

From 2008 to 2011, 16 patients (13 men and three women, average age 42 years) developed a pulmonary infection. Twelve of our patients had respiratory or extrarespiratory histories. None of our patients had a neutropenia. The diagnoses were lung aspergilloma in four cases, invasive lung aspergillosis in three cases, allergic bronchopulmonary aspergillosis in three cases, mucormycosis in three cases, trichosporonosis in a case, actinomycosis in one case and penicilliosis in one case. An antifungal treatment consisting in amphotericin B or itraconazole was given to four patients and six patients, respectively. Surgery was chosen for six patients. The evolution was good for 12 patients, one presented renal failure, and three patients died.

Epidemiology of invasive aspergillosis and risk factors in non neutropaenic patients

INTRODUCTION

Invasive aspergillosis is a major cause of mortality in allogeneic bone marrow transplant recipients and patients treated for blood malignancies. The diagnostic tools, treatments and preventive strategies, essentially developed for neutropaenic patients, have not been assessed in populations whose immune systems are considered to be competent.

STATE OF THE ART

Beside the standard picture of chronic Aspergillus infection, the incidence of invasive aspergillosis is increasing in non neutropaenic patients, such as those with chronic lung diseases or systemic disease treated with long-term immunosuppressive drugs and solid organ transplant recipients. This study reviews the specific features of invasive aspergillosis in non neutropaenic subjects (NNS) and discusses the value of the diagnostic tools and treatment in this population.

PROSPECTS

A better understanding of the pathophysiology and the epidemiological characteristics of invasive aspergillosis would provide a means of adapting the staging and classification of the disease for NNS.

CONCLUSIONS

Invasive aspergillosis is under diagnosed in NNS who may already be colonised when they receive immunosuppressive treatment; this can lead to an adverse outcome in patients who are considered to be a moderate risk population.