Archives of disease in childhood
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This study tested the hypothesis that hypocapnia superimposed upon hypotension produces a further reduction in cerebral blood flow velocity (CBFV). In 12 newborn piglets, CBFV was measured continuously by Doppler ultrasound through an artificial fontanelle. Hypotension was induced by removing 30 ml/kg of blood. ⋯ Hyperventilation (without haemorrhage) produced a significant drop in MAP, preventable by infusing colloid. Hypocapnia itself does not further reduce CBFV in the hypotensive piglet. However, the pressure effect of hyperventilation may significantly impair the cerebral circulation.
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All 162 consecutive admissions to a multidisciplinary paediatric intensive care unit in the UK have been prospectively evaluated in terms of therapeutic intention, sickness levels, age, utilisation of resources, and outcome. For 101 (62.3%) of the children admitted the aim of treatment was to cure the condition but for 30 (18.5%) ultimately only a palliative option was available. Five children were admitted to avail of specialised monitoring facilities. ⋯ Mortality rate overall was 17.9%. Mortality was unaffected by age and therapeutic intention and was inversely related to level of sickness. The information provided by this study forms a basis for medical audit within the unit and is essential for meaningful comparisons of standards of care and outcome with other units.
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Randomized Controlled Trial Clinical Trial
Effect of salbutamol on oxygen saturation in bronchiolitis.
Inhaled sympathomimetic agents are often used in bronchiolitis with little objective evidence of benefit. The arterial oxygen saturation (SaO2) reflects the adequacy of ventilation-perfusion balance. The aim of the current study was to determine the effect of inhaled salbutamol on SaO2. ⋯ The fall in SaO2 after saline was seen when given first, but not when given after salbutamol. The decrease in SaO2 was greater and more prolonged with salbutamol than with saline. Routine nebulised aerosol sympathomimetic treatment during acute bronchiolitis cannot be recommended.