Best practice & research. Clinical anaesthesiology
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Best Pract Res Clin Anaesthesiol · Jun 2002
ReviewSingle-injection applications for foot and ankle surgery.
Foot or ankle surgery is often performed in an ambulatory care setting. The post-operative pain that follows can be moderate to severe in intensity and difficult to control with oral analgesics. Regional anaesthetic techniques have been advocated for such procedures. ⋯ Patients can be safely discharged even when long-acting local anaesthetics are used. In major surgery a continuous technique can be proposed. When the prone position is impossible the lateral approach is an efficient alternative.
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Best Pract Res Clin Anaesthesiol · Jun 2002
ReviewThe Holy Grail: long-acting local anaesthetics and liposomes.
The ability to provide an extended duration of analgesia of days following a single injection without the need for catheters, pumps and infusion systems would be a great benefit in acute and chronic pain. Exciting progress is being made in our ability to combine local anaesthetics with liposomes and polymer microspheres. These interesting formulations in animal models have allowed up to 4 days of analgesia. Their use clinically will be a great advance which could possibly occur in the near future.
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The considerable development of ambulatory surgery has led to an increase in the number of lower extremity procedures performed in an outpatient setting. More recently, the availability of disposable pumps has allowed us to extend the indications of continuous nerve blocks for ambulatory post-operative pain management. Indications for lumbar plexus continuous blocks include anterior cruciate ligament (ACL) reconstruction and patella repairs as well as frozen knee, whereas continuous sciatic blocks are indicated for major foot and ankle surgery. ⋯ This latter technique seems to be the preferred mode because it offers the advantage of tailoring the amount of local anaesthetics, mostly 0.2% ropivacaine, to the individual need and also maximizes the duration of infusion for a given volume of local anaesthetic. Although the preliminary reports indicate that lower extremity continuous blocks provide effective post-operative ambulatory analgesia and are safe, especially as a part of a multimodal approach, appropriate training in these techniques represents one of the most important limiting factors of the placement of perineural catheters. Additional research is required to determine the optimal conditions in which these techniques are indicated.
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Best Pract Res Clin Anaesthesiol · Jun 2002
ReviewSpinal anaesthesia: local anaesthetics and adjuncts in the ambulatory setting.
Intrathecal lidocaine remains a popular choice for ambulatory spinal anaesthesia due to its reliability, rapid onset and predictable rapid recovery profile. However, concerns with transient neurological symptoms (TNS) and their significant association with lidocaine have generated interest in alternative local anaesthetic agents to provide adequate spinal anaesthesia with the briefest possible recovery period. ⋯ Controversies regarding the possible lower risk of TNS with newer spinal anaesthetic techniques and new discharge criteria are reviewed. The final section provides technical pearls to optimize ambulatory spinal anaesthetic outcomes.
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Best Pract Res Clin Anaesthesiol · Jun 2002
ReviewMaking an ambulatory surgery centre suitable for regional anaesthesia.
This chapter reviews a management strategy for transforming an outpatient surgery centre from that which exclusively uses general anaesthesia to one using regional anaesthesia with peripheral nerve blocks. Barriers presented by patients, nursing staff, surgeons and administrators can be notable; these might undermine the well-intended efforts of highly-skilled regionalists. ⋯ The centerpiece of the anaesthesia care process remains pre-emptive multimodal analgesia, routine multimodal antiemetic prophylaxis and avoidance of general anaesthesia (GA) with volatile agents. The remainder of the care process relies on teamwork among all healthcare providers and meaningful administrative support.