British journal of anaesthesia
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Observational Study
Prevalence and factors predictive of full stomach in elective and emergency surgical patients: a prospective cohort study.
This prospective observational study sought to assess the rate of full and empty stomach in elective and emergency patients and to determine the factors associated with full stomach. ⋯ The results suggest that preoperative ultrasound assessment of gastric content should be performed in all emergency patients, and in elective patients with identified predictive factors for full stomach.
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Observational Study
Measuring acute postoperative pain using the visual analog scale: the minimal clinically important difference and patient acceptable symptom state.
The 100 mm visual analog scale (VAS) score is widely used to measure pain intensity after surgery. Despite this widespread use, it is unclear what constitutes the minimal clinically important difference (MCID); that is, what minimal change in score would indicate a meaningful change in a patient's pain status. ⋯ Analgesic interventions that provide a change of 10 for the 100 mm pain VAS signify a clinically important improvement or deterioration, and a VAS of 33 or less signifies acceptable pain control (i.e. a responder), after surgery.
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Observational Study
Predictive performance of eleven pharmacokinetic models for propofol infusion in children for long-duration anaesthesia.
Predictive performance of eleven published propofol pharmacokinetic models was evaluated for long-duration propofol infusion in children. ⋯ The Short model performed well during continuous infusion up to 545 min. This model might be preferable for target-controlled infusion for long-duration anaesthesia in children.