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Master's Dissertation
DOI
10.11606/D.5.2004.tde-25072005-155453
Document
Author
Full name
Ronaldo Arkader
E-mail
Institute/School/College
Knowledge Area
Date of Defense
Published
São Paulo, 2003
Supervisor
Committee
Okay, Thelma Suely (President)
Krebs, Vera Lúcia Jornada
Schvartsman, Claudio
Title in Portuguese
"Avaliação da procalcitonina como marcador de sepse e de choque séptico em pacientes pediátricos"
Keywords in Portuguese
choque séptico
pediatria
procalcitonina
sepse
Abstract in Portuguese
Sepse bacteriana é a maior causa de morbimortalidade na faixa etária pediátrica e neonatal. A detecção precoce do quadro séptico é difícil, devido os sinais iniciais da doença serem inespecíficos. A possibilidade da existência de exame laboratorial capaz de identificar precocemente quadros sépticos melhoraria o prognóstico desses pacientes. Várias proteínas de fase aguda foram estudadas como marcadores de infecção sendo a proteína C reativa (PCR) a mais utilizada. A procalcitonina (PCT), um pró-hormônio, encontra-se elevado precocemente em quadros sépticos em crianças e adultos. Estudo prospectivo com 14 crianças submetidas à cirurgia cardíaca com circulação extra-corpórea (CEC), com dosagens seriadas de procalcitonina e proteína C reativa, serviram como modelo de resposta inflamatória sistêmica sem infecção com dosagens antes da CEC, após a CEC no primeiro, segundo e terceiro dia após cirurgia, enquanto 14 crianças com sepse/choque séptico dosagens seriadas de PCT e PCR foram obtidas sequencialmente antes do tratamento antibioticoterápico e a cada dia até o terceiro dia. Em crianças sépticas a PCT demonstrou ser superior a PCR como marcador de sepse assim como para diferenciar quadros inflamatórios sistêmicos.
Title in English
Evaluation of procalcitonin and C reactive protein as a sepsis marker in pediatric patients
Keywords in English
pediatric
procalcitonin
sepsis
septic shock
Abstract in English
Bacterial sepsis is a major cause of morbidity and mortality in neonates and children. Early detection of bacterial sepsis is difficult because the first signs of this disease may be minimal or nonspecific. The availability of a laboratory test to accurately and rapidly identify septic neonates and children would be of great value in improving the outcome of these patients. Several acute-phase proteins have been used for the diagnosis of bacterial sepsis and C reactive protein (CRP) is the usual marker. It has been reported that the concentration of procalcitonin (PCT), a pro-hormone, is markedly higher in children and adults with sepsis. In a prospective study, 14 children were enrolled after cardiac surgery with cardiopulmonary bypass (CPB), these group represent the non infected children with inflammatory response. Blood samples were obtained before CPB, after CPB, on the first, second and third day after surgery. Another group with 14 children with sepsis or septic shock were enrolled, and blood samples were obtained before antibiotic start, on the first, second and third days. In septic children PCT concentration is a better diagnostic marker of sepsis and to differentiate inflammatory response than CRP.
 
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Publishing Date
2005-08-03
 
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