Canadian journal of anaesthesia = Journal canadien d'anesthésie
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To report the detection of subarachnoid and intravascular catheter placement using nerve stimulation through an epidural catheter. ⋯ The new test provides objective information in managing epidural catheters when their position is uncertain.
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Treatment with angiotensin-converting enzyme (ACE) inhibitors affects the autoregulation of renal blood flow and glomerular filtration and provides renal protective effects. The purpose of this case-control study was to investigate the effects of chronic ACE inhibition on perioperative renal hemodynamics and function. ⋯ Long term treatment with ACE inhibitors does not influence the perioperative changes in renal hemodynamics and function. During cardiopulmonary bypass, a transient impairment in solute reabsorption is associated with renal release of vasodilatory mediators (nitric oxide and prostacyclin).