Current course of pneumocystic pneumonia in HIV-infected patients

Abstract


Aim. To describe clinical and laboratory characteristics of pneumocystic pneumonia (PP) in patients with HIV-infection for improvement of diagnosis quality.
Material and methods. Detailed examination was performed in 111 HIV-infected patients with suggested diagnosis of PP. The following investigations were made: clinical, x-ray examinations, total count and biochemical blood tests, enzyme immunoassay, indirect immunofluorescence reaction (IIFR) for Pneumocystis jiroveci antigens in bronchoalveolar lavage fluid (BALF)or induced sputum. For diagnosis of other secondary diseases PCR was used for investigation of BALF and bronchial biopsy to detect DNA of Mycobacterium tuberculosis complex, Candida albicans, Cytomegalovirus, Toxoplasma gondii, Mycoplasma spа., Herpes simplex I, II. DNA of cytomegalovirus in blood was detected with PCR. Microscopic tests of the sputum were conducted for detection of acid-resistant mycobacteria.
Results. PP was associated with other secondary diseases in 59% patients (pulmonary tuberculosis - 16%, CMV pneumonia - 31%, combination of all the lesions - 5%).PP diagnosis was cancelled and pulmonary tuberculosis was diagnosed in 12 patients.In combination of PP with other pathology dominant were symptoms observed in PP monoinfection and only effective anti-pneumocystic treatment revealed signs of comorbid pathology. Tuberculosis patients had weaker signs of respiratory failure, symmetric bilateral interstitial or small-focal alterations were detected less frequently.
Conclusion. Current PP course characteristics in HIV infection are identified. In clinical diagnosis of PP special attention should be paid to data complex especially to increasing respiratory failure, high ESR, elevated lactate dehydrogenase, low blood pO2, fast response to ex juvantibus therapy. The most effective method of the diagnosis verification - BALF IIFR.

About the authors

Tat'yana Nikiforovna Ermak

Email: ermak@hivrussia.net

El'vira Rastyamovna Samitova

Anatoliy Karpovich Tokmalaev

Aleksey Viktorovich Kravchenko

T N Ermak

Central Research Institute of Epidemiology, Moscow

Central Research Institute of Epidemiology, Moscow

E R Samitova

Russian University of Peoples' Friendship, Moscow

Russian University of Peoples' Friendship, Moscow

A K Tokmalaev

Russian University of Peoples' Friendship, Moscow

Russian University of Peoples' Friendship, Moscow

A V Kravchenko

Central Research Institute of Epidemiology, Moscow

Central Research Institute of Epidemiology, Moscow

References

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Copyright (c) 2011 Ermak T.N., Samitova E.R., Tokmalaev A.K., Kravchenko A.V., Ermak T.N., Samitova E.R., Tokmalaev A.K., Kravchenko A.V.

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