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BACKGROUND An extremely elevated erythrosedimentation rate (ESR), defined as equal or higher than 100 mm/h, has been linked to serious underlying conditions, such as infections, connective tissue and oncologic disease. AIM To analyze a group of patients in order to determine the underlying diagnosis and the characteristics associated with extremely elevated ESR in our environment. METHODS Cross-sectional study of adult patients, who presented with at least one ESR equal or higher than 100 mm/h at Hospital Italiano, in Buenos Aires (Buenos Aires, Argentina) between January 2002 and August 2014. RESULTS During the previously stated period of time, we analyzed the results of 879 patients. All patients were over 18 years of age. The median for the ESR results was 111 mm/h (interquartile range 105-120). The most prevalent etiology of an elevated ESR was infectious (41.64%), followed by malignancies (21.62%) and autoimmune / inflammatory diseases (12.97%). The most frequent individual diagnosis found was pneumonia (11.49%), followed by undetermined causes (5.92%). CONCLUSION When comparing inpatient versus outpatient populations, the most frequent cause was infectious in the former group, while malignancies were the most frequent diagnosis in the latter.

Background: A clinical registry encompasses a selective set of rigorously collected and stored clinical data focused on a specific condition. Hip fracture is a common complication of osteoporosis in elderly patients. Hip fracture substantially increases the risk of death and major morbidity in the elderly patients. Limited data regarding hip fracture are available from Latin America and Argentina. The purpose of this project is to create an institutional registry of elderly patients with hip fracture in order to obtain data that reveal the impact of this disease in our environment, allowing us to evaluate different strategies of patient’s care and clinical outcomes. Objective: To describe the implementation of an institutional registry of elderly patients with hip fracture in Argentina. Methods: In this article, we described the creation, implementation, and data management of a prospective registry of elderly patients with hip fracture. The registry contains information on baseline demographics, comorbidities, laboratory, and radiological data. Follow-up at 3 and 12 months postfracture is done by phone interview to assess physical function, readmissions, and morbi-mortality. Clinical Trials registry number NCT02279550. Conclusion: In this project, we have created a hip fracture registry. We hope that this registry will provide valuable data that can lead us to new lines of research, addressed to answer questions raised in clinical practice.

BACKGROUND Respiratory infection caused by Pneumocystis jiroveci is a common opportunistic infection in patients with human immunodeficiency virus (HIV) with CD4 counts < 200 cells/mm(3). However, it has also been reported in patients with other causes of immunosuppression. OBJECTIVES To compare the characteristics, severity and mortality of respiratory infection by P. jiroveci in patients with and without HIV infection. METHODS Retrospective cohort follow-up of adult patients admitted to our hospital with infection by P. jiroveci since 2006 to 2013. RESULTS We included 82 patients with respiratory infection by P. jiroveci of which 55% (45) were not infected with HIV. In this group, 68.8% (31) had diagnosis of cancer and 20% (9) received solid-organ transplant. 57.9% (26) were hospitalized in an intensive care unit. 42.2% (19) suffered multiple organ failure (MOF), 46.7% (21) required mechanical ventilation (MV) and 40.9% (18) inotropic drugs. Mortality was 33.3% (15). Statistically significant differences were observed between groups in age (p < 0.001), requirement of MV (p < 0.001) inotropic drugs (p 0.001) and MOF (p < 0.001). Mortality was higher in the HIV-positive group, reaching statistical significance (p 0.007). CONCLUSION Pneumocystis pneumonia mortality was higher in patients without HIV, who suffered more complications and progression to respiratory failure with MOF.