[Characteristics of supposedly bacterial community acute pneumonia among HIV-positive patients: prospective preliminary study]

[Clinical, paraclinic and evolutive profile of HIV infected subject compared with that of non-HIV infected subject in pneumology hospitalization at Abidjan]

INTRODUCTION

The HIV infection is a problem of public health in Côte d'Ivoire. Voluntary screening is encouraged for the premature management of HIV infected patients before the stage of serious opportunist affections. Antiretroviral therapy became free. The purpose of this study was to describe the characteristics of HIV infected subject infected in hospitalization of pneumology.

METHODOLOGY

Our retrospective and analytic study concerned the activity period from January 2001 to December 2012 of pneumology department of Cocody university hospital.

RESULTS

On 1141 recorded files, the prevalence of HIV infection was 48.20%. The multi-varied analysis showed the following results. Male patients were less HIV infected (OR=0.490 [0.363-0.661]) as the old patients of more than 64 years (OR=0.150 [0.080-0.280]). In case of HIV infection, infectious pathology, severe anemia and renal insufficiency were dominating respectively with OR=1.763 (1.212-2.564), OR=3.167 (2.125-4.720) and OR=2.054 (1.335-3.161). A stronger mortality was associated with HIV infection (OR=1.920 [1.312-2.809]).

CONCLUSION

HIV infection always remains frequented in pneumology hospitalization in Abidjan with late discovery, source of complications and abnormally high death rate.

[Comparative diagnosis of bacterial pneumonia and pulmonary tuberculosis in HIV positive patients]

INTRODUCTION

Immunodepression induced by the human immunodeficiency virus (HIV) modifies the clinical, radiological and microbiological manifestations of pulmonary tuberculosis; leading to similarities between pulmonary tuberculosis and acute community-acquired bacterial pneumonia. A consequence is the high proportion of discordant pre- and post-mortem diagnoses of pneumonia. The aim of our study was to contribute to the improvement in the diagnosis of acute bacterial pneumonia in HIV positive patients in areas where tuberculosis is endemic.

METHODS

This retrospective study in HIV positive patients has compared 94 cases of positive smear cases pulmonary tuberculosis and 78 cases of acute community-acquired bacterial pneumonia.

RESULTS

Using logistic regression, the following features were positively associated with bacterial pneumonia: the sudden onset of signs (OR=8.48 [CI 95% 2.50-28.74]), a delay in the evolution of symptoms of less than 15 days (OR=3.70 [CI 95% 1.11-12.35]), chest pain (OR=2.81 [CI 95% 1.10-7.18]), radiological alveolar shadowing (OR=12.98 [CI 95% 4.66-36.12) and high leukocytosis (OR=3.52 [CI 95% 1.19-10.44]). These five variables allowed us to establish a diagnostic score for bacterial pneumonia ranging from 0 to 5. The area under the ROC curve was 0.886 [CI 95% 0.84-0.94, P<0.001]). Its specificity was >96.8% for a score of greater than or equal to 4.

CONCLUSION

The diagnostic score for acute community-acquired pneumonia may improve the management of bacterial pneumonia in areas where tuberculosis is endemic.

Influence of HIV infection on the clinical presentation and outcome of adults with acute community-acquired pneumonia in Yaounde, Cameroon: a retrospective hospital-based study

Background

The impact of HIV infection on the evolution of acute community-acquired pneumonia (CAP) is still controversial. The aim of this study was to investigate possible differences in the clinical presentation and in-hospital outcomes of patients with CAP with and without HIV infection in a specialised service in Yaounde.

Methods

Medical files of 106 patients (51 men) aged 15 years and above, admitted to the Pneumology service of the Yaounde Jamot Hospital between January 2008 and May 2012, were retrospectively studied.

Results

Sixty-two (58.5%) patients were HIV infected. The median age of all patients was 40 years (interquartile range: 31.75-53) and there was no difference in the clinical and radiological profile of patients with and without HIV infection. The median leukocyte count (interquartile range) was 14,600/mm³ (10,900-20,600) and 10,450/mm³ (6,400-16,850) respectively in HIV negative and HIV positive patients (p = 0.002). Median haemoglobin level (interquartile range) was 10.8 g/dl (8.9-12) in HIV negative and 9.7 g/dl (8–11.6) in HIV positive patients (p = 0.025). In-hospital treatment failure on third day (39.5% vs. 25.5.1%, p = 0.137) and mortality rates (9% vs. 14.5%, p = 0.401) were similar between HIV negative and HIV positive patients.

Conclusion

Clinical and radiological features as well as response to treatment and in hospital fatal outcomes are similar in adult patients hospitalised with acute community-acquired pneumonia in Yaounde. In contrast, HIV infected patients tend to be more anaemic and have lower white cell counts than HIV negative patients. Larger prospective studies are needed to consolidate these findings.