Paediatric anaesthesia
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The introduction of nerve stimulation as a method of nerve localization sparked a new beginning in regional anesthesia. It was an epochal development akin to the utilization of ultrasound in more recent times. ⋯ Both of these technologies allow for only limited elucidation of needle position relative to the target nerve and are unable to reliably identify intraneural position of the needle. This article will review the role of nerve stimulation in modern regional anesthesia techniques in light of the introduction of ultrasound technology.
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Paediatric anaesthesia · Jan 2012
ReviewQuality assurance and improvement: the Pediatric Regional Anesthesia Network.
Quality assurance and improvement (QA/QI) is a critical activity in medicine. The use of large-scale collaborative databases is increasingly essential to obtain enough reports with which to establish standards of practice and define the incidence of complications and risk/benefit ratios for rare events. ⋯ The pediatric regional anesthesia network (PRAN) is such a project. The first data cohort is currently being analyzed and offers insight into how such data can be used to detect trends in adverse events and improve care.
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Local anesthetics (LA) block propagation of impulses along nerve fibers by inactivation of voltage-gated sodium channels, which initiate action potentials (1). They act on the cytosolic side of phospholipid membranes. ⋯ Amino amides are metabolized exclusively by the liver. Only amide LAs will be considered in this article.
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With ultrasound, continuous peripheral nerve blocks (CPNBs) are one of the most recent developments in regional anesthesia in children. CPNBs are now used more widely in children because more suitable materials have been marketed, allowing complete, and prolonged postoperative pain control. Their use after orthopedic procedures in children and treatment for complex regional pain syndrome in adolescents has demonstrated the benefits. ⋯ Accidents owing to systemic toxicity are very unlikely if the recommended maximum dose is not exceeded. The safety of continuous regional anesthesia techniques in children relies on the use of low-concentration l-enantiomer solutions (ropivacaine or levobupivacaine) accompanied by low plasma concentrations of local anesthetics, limiting the risk of systemic toxicity of these molecules. CPNB can ensure strong and lasting analgesia in hospital or at home.
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Paediatric anaesthesia · Jan 2012
Review Historical ArticleHistory of pediatric regional anesthesia.
The history of local and regional anesthesia began with the discovery of the local anesthetic properties of cocaine in 1884. Shortly afterwards nerve blocks were being attempted for surgical anesthesia. Bier introduced spinal anesthesia in 1898, two of his first six patients being children. ⋯ Spinals and other local techniques had periods of greater and lesser use and have not been universally employed. Initial loss of popularity seemed to relate to improvements in general anaesthesia. The advent of lignocaine (1943) and longer acting bupivacaine (1963) and increasing concern about postoperative analgesia in the 1970-1980s, contributed to the increased use of blocks.