Browsing by Author "Gederlini, Alessandra"

Now showing 1 - 4 of 4
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    Gastric cancer is related to early Helicobacter pylori infection in a high-prevalence country
    (AMER ASSOC CANCER RESEARCH, 2007) Ferreccio, Catterina; Rollan, Antonio; Harris, Paul R.; Serrano, Carolina; Gederlini, Alessandra; Margozzini, Paula; Gonzalez, Claudia; Aguilera, Ximena; Venegas, Alejandro; Jara, Alejandro
    Background and Aims: Chile ranks fifth in the world among countries with the highest incidence of gastric cancer. The aim was to quantify the association between Helicobacter pylori infection and gastric cancer mortality at the county of residence.
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    Non-invasive diagnosis of gastric mucosal atrophy in an asymptomatic population with high prevalence of gastric cancer
    (BAISHIDENG PUBLISHING GROUP INC, 2006) Rollan, Antonio; Ferreccio, Catterina; Gederlini, Alessandra; Serrano, Carolina; Torres, Javiera; Harris, Paul
    AIM: To validate a non-invasive method to detect gastric mucosal atrophy in a Chilean population with high prevalence of gastric cancer and a poor survival rate.
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    Predictive value of history and physical examination for the diagnosis of community-acquired pneumonia in adults
    (2007) Saldias, Fernando; Cabrera, Daniel; de Solminihac, Ignacio; Hernandez, Pamela; Gederlini, Alessandra; Diaz, Alejandro
    Background- Community-acquired pneumonia in adults is a serious health problem in the ambulatory care setting. Aim To define clinical variables associated with the presence of pneumonia in adult patients presenting with fever or respiratory symptoms to the emergency department. Material and methods: Prospective study carried out in the emergency department from the Catholic University Hospital in Santiago, Chile. Three hundred twenty-five patients (53 22 years) presenting fever or acute respiratory symptoms were included. After obtaining a clinical history and physical examination, the physician established a tentative diagnosis. Subsequently, a definitive diagnosis was made with the chest X rays. Results: Thirty-four percent of the patients had pneumonia. The clinical diagnosis of pneumonia before X-ray examination, was variable among emergency physicians (positive likelihood ratio 1.5-4.8) and showed only moderate sensitivity (79%) and specificity (66%). The clinical variables significantly associated with the presence of pneumonia were: advanced age (over 75 years), cardiovascular disease, fever, chills, sputum production, orthopnea, altered mental status, cyanosis, dullness on percussion, bronchial breath sounds, crackles, any abnormal vital sign (heart rate >= 100 beats/min, respiratory rate >= 20 breaths/min or temperature >= 38 degrees C) and oxygen. saturation below 90% breathing air Conclusions: Clinical judgment prior to observation. of chest X rays had moderate sensitivity and specificity for the diagnosis of pneumonia. There were no individual clinical findings, or combination of findings, that could confirm or exclude the diagnosis of pneumonia for a patient suspected of having this illness.
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    Surgery for high-grade gliomas in a developing country: survival estimation using a simple stratification system
    (ELSEVIER SCIENCE INC, 2008) Lorenzoni, Jose; Torrico, Alejandro; Villanueva, Pablo; Gederlini, Alessandra; Torrealba, Gonzalo
    Background: In spite of great technological advances in diagnostic and therapeutic tools, Survival in patients with HGG has not changed significantly in the last years. Judicious management in each case needs Survival estimation after surgery. We used a simple stratification system evaluating the histology, patient's age, and the KPS.