D G Mcdowall

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Ten patients with intracranial lesions, anaesthetized with thiopentone and nitrous oxide (70%) in oxygen (30%) received etomidate 0.2 mg kg-1 i.v. Ventilation was controlled in each patient. Intracranial pressure (i.c.p.) and mean arterial pressure (m.a.p.) were recorded. I.c.p. decreased significantly in all patients (0.01 greater than P greater than(More)
This paper details the results of experimental studies, on 16 dogs with artificially-induced intracranial space-occupying lesions, of the systemic vascular responses and the intracranial pressure changes (both in the supratentorial and infratentorial compartments) induced by increasing intracranial pressure. The changes produced were divided into two phases(More)
Chest physiotherapy causes increases in intracranial pressure (ICP) in patients with severe head injuries. In mechanically hyperventilated severe head injuries (PaCO2 3.3 - 4 kPa) 50% nitrous oxide in 50% oxygen exacerbated ICP increases associated with chest physiotherapy, while thiopentone and Althesin reduced these changes in ICP.
In Leeds a screw device is used to monitor surface subarachnoid pressure following severe head injury. The possibility that such measurements may under-read true intracranial pressure (ICP) has led to the development of an infusion test to confirm free communication with the surface subarachnoid space. The results of 69 infusion tests using 18 devices(More)
A comparison of the blood flow and electrical power and an area of parietal cortex has been made in cats subjected to controlled hypotension induced with either practolol and trimetaphan or practolol and nitroprusside. In both groups it was necessary also to remove blood to achieve the required low values of arterial pressure (AP). It was found that(More)
BACKGROUND Simon et al. developed a simple secondary triage tool (mPTS) based on physiologic parameters and physical findings to identify pediatric trauma patients who had a low likelihood of serious injury. Such patients could be treated in the emergency room without full trauma team activation. Our objective was to evaluate the mPTS on the trauma(More)