Journal of critical care
-
Sugammadex is the first selective relaxant binding agent which was originally designed to reverse the steroidal NMB drug rocuronium. The results of recent studies demonstrate that sugammadex is effective for reversal of rocuronium and vecuronium-induced neuromuscular block without apparent side-effects. This is in contrast to the currently available cholinesterase inhibitors used to reverse neuromuscular block and which are even ineffective against profound neuromuscular block and have a number of undesirable side-effects. ⋯ Once sugammadex becomes commercially available, anesthesiologists will be capable of maintaining the desired depth of neuromuscular block at any time, thereby assuring optimal surgical conditions. The mechanism by which sugammadex encapsulates rocuronium and vecuronium appears to be superior to currently used neuromuscular block reversal strategies in terms of speed, efficacy and side effects. In this article, clinical studies of sugammadex are discussed.
-
Journal of critical care · Mar 2009
ReviewClinical implications of new neuromuscular concepts and agents: so long, neostigmine! So long, sux!
Although antiquated and long targeted for obsolescence, neostigmine and succinylcholine still serve the anesthesia community, decades after their inferior pharmacological profiles have been recognized. The need to quickly establish a good intubation condition with a relaxant that will recover rapidly is fundamental to safe anesthesia practice. ⋯ This allows for use of rocuronium to establish a good intubation condition, and use of sugammadex to terminate the neuromuscular block at will. The present article assesses the clinical implications of such therapeutic regimen, and provides an educated guess on how the clinical neuromuscular practice might change, if and when sugammadex becomes clinically available.
-
Journal of critical care · Mar 2009
Timing of renal replacement therapy and clinical outcomes in critically ill patients with severe acute kidney injury.
The aim of this study is to evaluate the relationship between timing of renal replacement therapy (RRT) in severe acute kidney injury and clinical outcomes. ⋯ Timing of RRT, a potentially modifiable factor, might exert an important influence on patient survival. However, this largely depended on its definition. Late RRT (days from admission) was associated with a longer duration of RRT, longer hospital stay, and higher dialysis dependence.
-
Journal of critical care · Mar 2009
ReviewClinical limitations of acetylcholinesterase antagonists.
Administration of a nondepolarizing neuromuscular blocking drug (muscle relaxant) is a standard practice in many anesthetic scenarios. These muscle relaxants work by competitive antagonism of the neurotransmitter acetylcholine at nicotinic cholinergic receptors within the neuromuscular junction of skeletal muscle (Martyn et al; Neuromuscular physiology and pharmacology, anesthesia. Edited by RD Miller, Philadelphia, Churchill Livingstone, 2000). ⋯ Pharmacologic reversal currently relies on the administration of an anticholinesterase drug, which decreases the metabolism of acetylcholine at the neuromuscular junction and allows its concentration to increase and hopefully overcome the effect of the muscle relaxant. This approach to reversal has significant limitations; the mechanism of reversal is indirect, the efficacy is limited and unpredictable, and undesirable autonomic responses occur. This review will address these limitations.
-
Journal of critical care · Mar 2009
The effect of comorbidities on risk of intensive care readmission during the same hospitalization: a linked data cohort study.
The aim of this study is to assess the effect of comorbidities on risk of readmission to an intensive care unit (ICU) and the excess hospital mortality associated with ICU readmissions. ⋯ Comorbidity was a risk factor for late ICU readmission. Comorbidities could not account for the excess mortality associated with ICU readmissions.