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Introduction: Evaluate patients with community acquired pneumonia (CAP) admitted to our Short Stay Medical Unit (SSMU) in order to establish, using Fines s criteria, whether reducing the length of stay of maximum risk groups (IV and V) is associated with reduction of quality with either an increase of mortality or readmissions. A further objective was to pinpoint the variables associated with a prolongation of hospital stay., Patients and Methods: All CAP patients admitted to our unit over a eighteen-month period were included in the study. We conducted an univariate analysis and a step wise multivariate analysis of all the variables in the univariate analysis showing a significant statistical relation., Results: 182 patients with a mean age of 73 years were studied. The length of hospital stay was 4.3 days. Stratified by Fine's criteria, 91.2% were included in the groups of maximum risk: 12.1% in group III, 60.4% IV and 18.7% in V. The medium length of stay for each category was 4.3, 4.1 y 5.3 days respectively. The mortality rate was 2.7% and only 5 patients required readmission within one month alter the discharge. Of the variables analyzed only Fine's group V, chronic liver disease and/or renal insufficiency as comorbidities, a pulse rate over 125 per minute and blood glucose level > 250 mg/l showed a significant relation with more than five days hospitalization, and out of them, only the three latter stayed in the multivariate analysis., Conclusions: All CAP patients, including those in Fine's groups IV and V, can be treated safely and efficiently in a SSMU, providing there is an outpatient clinic for immediate consultation available.

Listeria monocytogenes is still a very rare opportunist infection in immunosuppressive patients. The clinical-epidemiological and therapeutic characteristics in 10 patients with infection produced by LM are reported--four of them had primary bacteriemia, three patients had a meningeal involvement, there were two patients with spontaneous bacterial peritonitis and one suffered from abdominal access. All of the patients had underlying disorders favouring the infection. Sepsis and meningeal syndrome were the most common presenting forms. Ampicillin was the most used antibiotic. The overall mortality was 40%.

Rendu-Osler-Weber's disease or Hereditary Hemorrhagic Telangiectasia (HTT) is an autosomal dominant hereditary clinical entity characterized by the presence of telangiectasias on skin, mucous membranes and internal organs. The incidence of hepatic, pulmonary or cerebral complications justifies an early diagnostic. A familiar study of patients previously diagnosed of HTT in our hospital was made, establishing a protocol for the identification of asymptomatic or pauci-symptomatic cases. Fourteen patients were studied: 6 with a previous diagnostic, and 8 familiar contacts. Penetrance was of 85%. Epistaxis (80%) and telangiectasias on skin were the most frequent clinical findings. The visceral lesions found were gastrointestinal (28%), hepatic (15%), urological (15%) and pulmonary (7%). All patients were included in an hepatitis B virus vaccination program. It was also made a morphological study with Werhoeff's staining of the elastic layer, that allowed to distinguish both arterial and venous alterations.