International anesthesiology clinics
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Int Anesthesiol Clin · Jan 2012
ReviewRegional anesthesia procedures for shoulder and upper arm surgery upper extremity update--2005 to present.
This review of the literature since 2005 assesses developments of RA techniques commonly used for shoulder surgery, and their effectiveness for postoperative analgesia. Advantages of regional techniques include site-specific anesthesia and decreased postoperative opioid use. For shoulder surgeries, the ISB provides effective analgesia with minimal complications, whereas the impacts of IA single-injections remain unclear. ⋯ Since 2005, perineural catheters have been an analgesic option that offers improved pain relief among other benefits, and are now being used at home. It is clear that patients benefit greatly from a single injection and continuous nerve block for postoperative pain management,but the financial and logistical aspects need to be resolved, not to mention the phrenic hemiparesis coin toss. Whether combined perineural analgesic adjuvants prolong low-concentration LA nerve blocks sufficiently to render brachial plexus catheters as unnecessary would certainly represent another quantum leap.
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Int Anesthesiol Clin · Jan 2012
ReviewThe role of extracorporeal membrane oxygenation (ECMO) therapy in acute heart failure.
ECMO is a reliable and useful treatment for patient with acute cardiac failure. However, outcomes of cardiac ECMO are not yet as successful as case of ECMO support for respiratory failure. ⋯ Other options, including LVADs and heart transplant, should be considered when patients do not show any improvements under ECMO therapy. A multidisciplinary approach is required to provide the maximum chance of survival after ECMO treatment.
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Int Anesthesiol Clin · Jan 2012
ReviewManagement of bladder volumes when using neuraxial anesthesia.
The major principles of management of bladder function during outpatient neuraxial blockade include choice of short-acting local anesthetics, avoidance of adding epinephrine, and reasonable fluid administration (750 to 1000 mL) to avoid overdistention of the bladder. Data suggest that low-risk patients are at no greater risk of retention than after general anesthesia, and may be discharged home with similar instructions regarding return if unable to void. High-risk patients may require closer monitoring with a BUS, and catheter drainage if volumes exceed 600 mL.
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Int Anesthesiol Clin · Jan 2012
Forecast for perineural analgesia procedures for ambulatory surgery of the knee, foot, and ankle: applying patient-centered paradigm shifts.
Although much of the current clinical research is directed toward practitioner-centered refinement of RA techniques and technology, it is important to consider pharmacologic advances in perineural analgesia as the next major patient-centered advancement of our specialty. With all due respect to excellent bench science work with novel drugs and toxins that may not gain approval of the Food and Drug Administration for many years, it is useful to know that four Food and Drug Administration-approved drugs are commercially available for potentially ground-breaking off-label use, pending ongoing research. ⋯ Research is also needed to determine the extent to which these four drugs may reduce the needed local anesthetic concentration to achieve a surgical nerve block (on bolus injection). Ongoing research in this direction seems to represent the next major advancement in the subspecialty, being distinguished from refinement research involving strictly techniques and technology.