INTRODUÇÃOO Helicobacter pylori (Hp) é uma bactéria Gram negativa, microaerófila e espiralada (11,22) , sendo provavelmente o agente da infecção crônica mais comum em seres humanos. O Hp coloniza o estômago e tem sido associado à gastrite, úlcera gástrica e duodenal, câncer e linfoma gástrico (19) . Além disso, há estudos que, embora ainda iniciais, evidenciam a relação do Hp com coronariopatia, rosácea, urticária crônica e retardo de crescimento (6,21,25) . Embora metade da população mundial esteja infectada com este organismo, 80% desses indivíduos permanecem sem nenhuma evidência clínica de doença. Portanto, vários fatores, inclusive a aquisição na infância, o tipo de cepa da bactéria, a predisposição genética do hospedeiro e o meio-ambiente parecem estar relacionados a sua fisiopatogenia (25) . Há discrepâncias nas prevalências de gastrite/úlcera gástrica e duodenite/úlcera duodenal associadas ao Hp entre crianças e adultos em estudos realizados em locais distintos. Na Inglaterra a associação foi de 52% e 60%, respectivamente;
OBJECTIVE: To evaluate clinical and evolutive characteristics of patients admitted in an intensive care unit after cardiopulmonary resuscitation, identifying prognostic survival factors.METHODS: A retrospective study of 136 patients admitted between 1995 and 1999 to an intensive care unit, evaluating clinical conditions, mechanisms and causes of cardiopulmonary arrest, and their relation to hospital mortality.RESULTS: A 76% mortality rate independent of age and sex was observed. Asystole was the most frequent mechanism of death, and seen in isolation pulmonary arrest was the least frequent. Cardiac failure, need for mechanical ventilation, cirrhosis and previous stroke were clinically significant (p<0.01) death factors.CONCLUSION: Prognostic factors supplement the doctor's decision as to whether or not a patient will benefit from cardiopulmonary resuscitation
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