Critical care medicine
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Critical care medicine · Dec 1991
Severity of illness correlates with alterations in energy metabolism in the pediatric intensive care unit.
To evaluate the correlations between severity of illness scoring systems and biochemical markers of physiologic stress. ⋯ The correlations were independent of diagnostic category, suggesting that the alterations in biochemical variables were most directly related to the overall severity of illness as measured by the scoring system.
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Critical care medicine · Dec 1991
Amino acid clearances and daily losses in patients with acute renal failure treated by continuous arteriovenous hemodialysis.
To determine daily amino acid and total protein losses in patients with acute renal failure receiving total parenteral nutrition (TPN) during treatment by continuous arteriovenous hemofiltration with hemodialysis (CAVHD). ⋯ These studies confirm that amino acid clearances are relatively high during CAVHD and daily losses should therefore be considered.
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Critical care medicine · Dec 1991
Anatomical variations of internal jugular vein location: impact on central venous access.
To evaluate whether underlying anatomical variations in the position of the internal jugular vein may account for difficulty in obtaining central venous access in individual patients. ⋯ These findings suggest that anatomical variation may partly account for the inability to cannulate the internal jugular vein in certain patients. In these cases, ultrasound examination quickly establishes the position of the internal jugular vein and may allow for easy and rapid access.
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Critical care medicine · Dec 1991
Systemic and regional oxygen uptake and delivery and lactate flux in endotoxic dogs infused with dopexamine.
To test whether dopexamine, a dopaminergic and beta 2-adrenergic receptor agonist, would: a) direct a greater share of cardiac output to gut than to muscle when used to increase systemic oxygen delivery (DO2) in endotoxic dogs; and b) enhance the ability of peripheral tissues to extract oxygen. ⋯ Dopexamine temporarily increased systemic DO2 and VO2 in volume-expanded endotoxic dogs during normoxia and may have caused gut mucosa to be preferentially perfused and thus to be kept better oxygenated.
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Critical care medicine · Dec 1991
Randomized Controlled Trial Clinical TrialPreoperative lumbar epidural morphine improves postoperative analgesia and ventilatory function after transsternal thymectomy in patients with myasthenia gravis.
To test the hypothesis that preoperative lumbar epidural morphine improves postoperative pain control and ventilatory function after transsternal thymectomy in patients with myasthenia gravis. ⋯ Preoperative lumbar epidural morphine facilitates postoperative analgesia and improves initial postoperative ventilatory performance.