Crit Care Resusc
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To discuss the reasons why 250 ml 7.5% hypertonic saline was chosen as a pre-hospital resuscitation fluid for head injured patients in a multicentred, prospective, randomised controlled trial investigating its long term effects on central nervous system outcome. ⋯ Pre-hospital resuscitation of head injured and hypotensive trauma patients using hypertonic saline, has the potential to reduce long term cerebral injury and reduce social and financial costs to the community.
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To review the function and use of intravenous magnesium in magnesium depleted and non-magnesium depleted patients. ⋯ Magnesium is required in patients who are magnesium depleted and is also of benefit in non-magnesium depleted patients with pre-eclampsia. It may also be of benefit in non-magnesium depleted patients with acute coronary syndromes, arrhythmias, acute asthma, stroke, seizures and spinal cord injury.
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Clostridium perfiringens may cause myonecrosis (i.e. gas gangrene), acute food poisoning or necrotic enteritis (e.g. enteritis necroticans or Pig Bel). We describe a case of enteritis necroticans in a 33 year old man with acute myeloid leukaemia. ⋯ Treatment of enteritis necroticans requires urgent surgery to remove dead bowel and in adults intravenous penicillin (1g 2-hourly) and metronidazole (500 mg 8-hourly) or clindamycin (600 mg 6-hourly). While antibiotics may also reduce toxin formation, beta toxoid has not been found to be of benefit in established disease.
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To discuss the clinical indications and complications of non-invasive ventilation. ⋯ Non-invasive ventilation using the modes of CPAP, PSV, BiPAP and NIPPV should be considered in patients with respiratory disorders who remain in acute respiratory failure despite conventional therapy, before considering invasive mechanical ventilation.
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To assess the effects of preoperative aspirin and/or intravenous heparin therapy on perioperative coagulation tests and postoperative blood loss for 24-hour after coronary artery bypass surgery. ⋯ There was no significant difference in either coagulation tests or postoperative blood loss (median of 860 mL with a range of 275 to 2800 mL, versus 833 ml with a range of 500-1380 mL) between the aspirin and no-aspirin patients. Preoperative heparin therapy affected most coagulation tests (e.g. international normalised ratio, activated partial thromboplastin time, thrombin clotting time, prothrombin time, activated clotting time and coagulation time of thrombelastography) before anaesthesia. The effects disappeared following protamine administration and after skin closure. Post operative blood loss was not significantly increased for the heparin group compared with the no-heparin group (median of 850 mL with a range of 700-1400 mL, versus 856 mL with a range of 275-2800 mL, respectively). Similar results were seen in patients receiving preoperative co-administration of aspirin and heparin compared with patients receiving aspirin alone. There was no suppression of platelet activity in patients receiving preoperative heparin or co-administration of aspirin and heparin. However, such suppression was found in patients receiving aspirin only. Conclusion: This study suggests that preoperative aspirin ingestion and intravenous heparin therapy should be administered as indicated and that concerns about the risk of postoperative bleeding should not lead to modification or cessation of such therapy.