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  • 1
    ISSN: 1432-1238
    Keywords: Purpura ; Septic shock ; Meningococcal infections ; Cytokines ; Lactate ; Prognostic factors
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Objective To establish the relation between routine laboratory data (lactate, fibrinogen, CRP) and cytokines (TNF,IL-1 and-6) and to estimate their prognostic value in pediatric patients with severe infectious purpura on admission. Design Prospective study. Setting Pediatric intensive care unit (PICU). Patients 17 children aged 5–172 months (median 46) were hospitalized in our PICU in 1989–90 with severe infectious purpura.Neisseria meningitidis was isolated in 15 children andHaemophilus influenzae in two. The patients were divided into 3 groups: non-shock, shock and severe shock leading to death. Shock was defined by standard criteria. Measurements Arterial blood was sampled for lactate, CRP, fibrinogen, TNF, and IL-1 and-6 on admission. The PRISM (pediatric risk of morality)-score was recorded. Methods Statistical analysis was performed with the Student'st-test using the logarithmic values of the cytokine concentration, and Spearman correlation analysis. Results According to the shock criteria, 9 patients were in shock of whom 4 did not survive. Significant differences existed between the 3 groups concerning lactate, TNF, and IL-6. Fibrinogen, CRP, IL-1, and PRISM-score discriminated only between survivors and non-survivors. A highly significant correlation existed between cytokines, the PRISM-score and lactate (TNF:r=0.69, IL-1:r=0.56, IL-6:r=0.65, PRISM:r=0.65). A significant inverse correlation existed between cytokines and CRP (TNF:r=−0.55, IL-1:r=−0.64, and IL-6:r=−0.56), and IL-6 and fibrinogen (r=−0.65). Conclusion These results show a significant correlation between cytokines and lactate, and lactate, TNF and IL-6 are closely associated with the severity of septic shock with purpura in children.
    Type of Medium: Electronic Resource
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  • 2
    ISSN: 1432-1238
    Keywords: Key words Energy expenditure ; Indirect calorimetry ; Mechanical ventilation ; Critical illness ; Nitrogen excretion
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Objective: To determine the energy requirements in mechanically ventilated pediatric patients using indirect calorimetry and to compare the results with the predicted metabolic rate. Design: In 50 mechanically ventilated children with a moderate severity of illness, energy expenditure was measured by indirect calorimetry. Daily caloric intake was recorded for all patients. Total urinary nitrogen excretion was determined in 31 patients. Results: Although there was a close correlation between the measured total energy expenditure (mTEE) and the predicted basal metabolic rate (pBMR) (r = 0.93, p 〈 0.001), Bland–Altman analysis showed lack of agreement between individual mTEE and pBMR values. The ratio of caloric intake/mTEE was significantly higher in the patients with a positive nitrogen balance (1.4 ± 0.07) compared with those with a negative nitrogen balance (0.8 ± 0.1; p 〈 0.001). Conclusions: Standard prediction equations are not appropriate to calculate the energy needs of critically ill, mechanically ventilated children. Individual measurements of energy expenditure and respiratory quotient by means of indirect calorimetry in combination with nitrogen balance are necessary for matching adequate nutritional support.
    Type of Medium: Electronic Resource
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  • 3
    Electronic Resource
    Electronic Resource
    Springer
    Pediatric cardiology 4 (1983), S. 205-207 
    ISSN: 1432-1971
    Keywords: Left-to-right shunt ; P o 2 measurement ; Cardiac catheterization ; Congenital heart disease
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary A rapid, simple and low-cost method is presented for intracardiac left-to-right shunt quantification in children with congenital heart disease. The percentage of shunt is calculated from data obtained by continuousP o 2 measurement during oxygen inhalation, using a nondisposable intravascularP o 2-electrode cardiac catheter. These values are compared with those obtained by the dye-dilution method (correlation coefficientr=0.89) and the Fick method (correlation coefficientr=0.98). TheP o 2 measurement proved reliable for small, medium, and large sized shunts.
    Type of Medium: Electronic Resource
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  • 4
    Electronic Resource
    Electronic Resource
    Springer
    European journal of pediatrics 157 (1998), S. 869-880 
    ISSN: 1432-1076
    Keywords: Key words Meningococcal infection ; Sepsis ; Children ; Pathophysiology ; Treatment
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Septic shock with purpura is a syndrome frequently diagnosed in children and predominantly caused by Neisseria meningitidis. Despite improvements in management and therapy the mortality and morbidity in these patients are still high. During the last few years much effort has been put into understanding of the systemic host response during this acute infectious disease. This host response can be divided into the process of recognition of endotoxin, the cascade of pro- and counter inflammatory mediators, the endothelial damage resulting in capillary leakage and inappropriate vascular tone, and the procoagulant state. Conclusion This paper reviews the recent insights in the pathophysiology of the host response and their possible consequences for novel therapies in meningococcal sepsis.
    Type of Medium: Electronic Resource
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