Crit Care Resusc
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Randomized Controlled Trial
Protocol for a multicentre randomised controlled trial of early and sustained prophylactic hypothermia in the management of traumatic brain injury.
Traumatic brain injury (TBI) is a leading cause of death and disability worldwide. Prophylactic hypothermia is effective in laboratory models, but clinical studies to date have been inconclusive, partly because of methodological limitations. Our Prophylactic Hypothermia Trial to Lessen Traumatic Brain Injury (POLAR) randomised controlled trial is currently underway comparing early, sustained hypothermia versus standard care in patients with severe TBI. We describe our study protocol and the challenges in conducting prophylactic hypothermia research in TBI. ⋯ After a run-in phase, recruitment for our main study began in December 2010. When the study is completed, we aim to provide evidence on the efficacy of prophylactic hypothermia in TBI to guide clinicians in their management of this devastating condition.
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Comparative Study
Agreement between radial and femoral arterial blood pressure measurements during orthotopic liver transplantation.
To study agreement between radial and femoral arterial pressure measurements in orthotopic liver transplantation (OLTx) surgery to determine whether arterial cannulation sites are interchangeable. ⋯ Radial artery SAP underestimates femoral artery measurements significantly but unpredictably. As femoral measurement is more likely to reflect central arterial pressure, radial SAP measurement is not reliable in adults undergoing OLTx.
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Comparative Study Observational Study
Haemodynamic and biochemical responses to fluid bolus therapy with human albumin solution, 4% versus 20%, in critically ill adults.
Fluid bolus therapy (FBT) is common in critically ill patients. With the exception of use in patients with traumatic brain injury, FBT with human albumin solution (HAS) appears safe and perhaps superior in severe sepsis. ⋯ Haemodynamically, FBT with 100mL of 20% HAS performs in an equivalent way to 500 mL of 4% HAS but delivers much less fluid, sodium and chloride.
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Traumatic brain injury (TBI) can result in cerebral oedema and vascular changes resulting in an increase in intracranial pressure (ICP), which can lead to further secondary damage. Decompressive craniectomy (DC) is a surgical option in the management of ICP. We aimed to investigate outcomes of DC after TBI. ⋯ DC decreased ICP postoperatively. The IMPACT and APACHE II scores are good models for prediction of death and poor outcome at 6 months.
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Low tidal volume ventilation (LTVV) has been shown to reduce mortality of patients with acute lung injury (ALI) but uptake by clinicians has been low. Recent studies have shown that LTVV results in survival benefit at 24 months after discharge and, importantly, benefits patients without ALI. ⋯ Adherence to LTVV in a general cohort of ICU patients was low, but it was better in patients with more severe lung disease. Overestimation of PBW may have contributed to our findings. Regular auditing of LTVV adherence might be considered a clinical indicator of good MV practice.