Canadian journal of anaesthesia = Journal canadien d'anesthésie
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Randomized Controlled Trial Comparative Study
A comparison of motor stimulation threshold in ultrasound-guided interscalene brachial plexus block for arthroscopic shoulder surgery: a randomized trial.
As the use of ultrasound for regional anesthesia has increased, many studies have examined the distribution of local anesthetic and the location of the needle tip. Nevertheless, the relationship between motor stimulation threshold and distribution of local anesthetic is unclear. The aim of this study was to compare block onset time, distribution of local anesthetic, and location of the needle tip at two different motor stimulation thresholds, i.e., 0.2 and 0.5 mA, used in combination with ultrasound guidance. ⋯ The onset time of the block was significantly faster with a motor stimulation threshold of 0.2 mA than with a threshold of 0.5 mA.
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Observational Study
Interleukin-1β gene variants are associated with QTc interval prolongation following cardiac surgery: a prospective observational study.
We characterized cardiac surgery-induced dynamic changes of the corrected QT (QTc) interval and tested the hypothesis that genetic factors are associated with perioperative QTc prolongation independent of clinical and procedural factors. ⋯ The results suggest a contribution of IL1β in modulating susceptibility to postoperative QTc prolongation after cardiac surgery.
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In the article entitled: "Extracranial contamination in the INVOS 5100C versus the FORE-SIGHT ELITE cerebral oximeter: a prospective observational crossover study in volunteers" published in the January 2016 issue of theJournal, Can J Anesth 2016; 63: 24-30, in the second column of page 29, the second to last sentence of the first paragraph should read: "Another study by Sorenson et al. examined 15 healthy males under different physiologic conditions". The publisher apologizes most sincerely for this error.
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Patients with diabetes mellitus have chronic neuropathic pain. The aim of our study was to 1) evaluate the feasibility of providing analgesia with a long-term sciatic perineural catheter in a medical unit for diabetic patients and 2) evaluate its effectiveness. ⋯ The use of sciatic perineural catheters as an alternative analgesia technique in a non-surgical environment for diabetic patients with chronic pain was possible and effective.
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This study was designed to investigate the role of chronic pain in healthcare visits. The specific objectives were to document the frequency of healthcare visits and to identify characteristics associated with frequent visits. ⋯ Interventions aimed at reducing healthcare costs for chronic pain should target individuals living with multiple chronic conditions. Research is needed to develop and test interventions that focus on the needs of these groups. Identifying the risk factors for high healthcare use and improving self-management may reduce healthcare visits.