Changes in the etiology, incidence and prognosis of acute lower respiratory track infections in human immunodeficiency virus patients.

AIM: To describe the incidence, the changes in the etiology and the prognosis of lower respiratory tract infection (LRTI) in HIV infected patients, presenting by the first time to the Emergency Department (ED), during years 2000-2010. STUDY DESIGN: Prospective collection of data. METHODS: Data were collected on the first visit of HIV-infected patients at our ED due to a LRTI, (defined according to the criteria of the European Respiratory Society), between 1/1/2000 and 31/12/2010. A series of epidemiological and laboratory variables as well as the need for admission to the intensive care unit (ICU). LRTI etiology were also collected. The influence ofthe mentioned variables on 30-day mortality were analyzed. RESULTS: One hundred thirty one patients were included. LRTI represented 27% of visits to the ED by HIV-infected patients. Mean age was 39±9 years. 72% of patients were males. 18% required admission to the ICU. The most frequent LRTI was pneumonia by P. jiroveci in 35 cases, bacterial penumonia in 27 and pulmonary tuberculosis in 20. LRTI incidence gradually reduced significantly over time from 6.13 × 1000 patients/year in year 2000 to 0.23 × 1000 patients/year in 2010 (p<0.05). Overall mortality was 14%. Logistic regression analysis showed that admission to ICU (p<0.004) and viral load (p<0.029) were independent variables predicting mortality. CONCLUSION: LRTI is a pathology with a decreasing incidence, probably related to the widespread utilization increased of HAART regimens. lts etiology has also been changing, but with a non negligible mortality, mostly when ICU admission was required.

Quick diagnosis units or conventional hospitalisation for the diagnostic evaluation of severe anaemia: a paradigm shift in public health systems?

BACKGROUND: Acute hospital bed utilisation is a growing concern for health care systems in most countries with public health models, as it represents a significant share of health costs. Anaemia with haemoglobin levels below 8 g/l has traditionally been a criterion used to hospitalise patients in our centre for diagnosis. METHODS: We conducted a longitudinal study with a prospective and retrospective cohort to investigate the usefulness of a Quick Diagnosis Unit (QDU) for the evaluation of patients with severe anaemia as compared with hospitalisation in a tertiary public hospital. We recorded pretransfusion haemoglobin and haematocrit values, Charlson comorbidity index, waiting time for the first visit, time to diagnosis (length-of-stay in hospitalised patients), final diagnosis, costs, and responses to an opinion survey. RESULTS: QDU patients were significantly younger [65.63 years (17.44)] than hospitalised patients [76.11 years (12.68)] (P<.0001). No significant differences were observed regarding time to diagnosis/length-of-stay, haemoglobin concentrations and Charlson index. Iron-deficiency anaemia was the commonest type of anaemia in both cohorts and benign digestive lesions accounted for most cases. The mean cost per process (admission-discharge episode) was 2920.62 Euros in the QDU and 18,278.01 Euros in hospitalised patients. If further diagnostic tests were required, 85% of patients would prefer the QDU care model to conventional hospital admission. CONCLUSIONS: For diagnostic purposes, patients with severe anaemia can be managed similarly in a QDU or in-hospital setting, but the QDU model is more cost-saving than traditional hospitalisation. Most QDU patients preferred the QDU model to hospital admission.