European journal of anaesthesiology
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Randomized Controlled Trial
Duration of analgesia after forefoot surgery compared between an ankle and a sciatic nerve block at the popliteal crease: A randomised controlled single-blinded trial.
Forefoot surgery is associated with severe postoperative pain. Ankle and sciatic nerve blocks provide satisfactory postoperative analgesia after forefoot surgery, but little is known on their respective duration of analgesia. ⋯ Compared with the ankle block, the sciatic nerve block at the popliteal crease does not provide a longer duration of analgesia in patients undergoing forefoot surgery in the setting of multimodal analgesia.
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Extravascular injection of neuromuscular blocking drugs (NMBDs) can cause a neuromuscular block because of systemic absorption. Currently, there are no guidelines available on managing extravasation of NMBDs. This article reviews the available literature on extravasation of NMBDs. ⋯ According to the current literature, extravasation of NMBDs results in an unpredictable neuromuscular block. Strategies to prevent potentially harmful side effects, such as frequent train-of-four (TOF) monitoring, the use of NMBD reversal agents and prolonged length of stay in the postanaesthesia care unit (PACU), should be considered. This article suggests a clinical pathway that can be used after extravascular injection of NMBDs.
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Despite being a commonly performed surgical procedure, pain management for appendicectomy is often neglected because of insufficient evidence on the most effective treatment options. ⋯ The protocol for this study was registered with the PROSPERO database (Registration No. CRD42023387994).
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An understanding of the half-life (T1/2) of infused fluids can help prevent iatrogenic problems such as volume overload and postoperative interstitial oedema. Simulations show that a prolongation of the T1/2 for crystalloid fluid increases the plasma volume and promotes accumulation of fluid in the interstitial fluid space. The T1/2 for crystalloids is usually 20 to 40 min in conscious humans but might extend to 80 min or longer in the presence of preoperative stress, dehydration, blood loss of <1 l or pregnancy. ⋯ The commonly used colloid fluids have an intravascular persistence T1/2 of 2 to 3 h, which is shortened by inflammation. The fact that the elimination T1/2 of the infused macromolecules is 2 to 6 times longer shows that they also reside outside the bloodstream. With a colloid, fluid volume is eliminated in line with its intravascular persistence, but there is insufficient data to know if this is the same in the clinical setting.