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Pharmacology
骨骼肌松弛剂:不良反应
骨骼肌松弛剂:不良反应
JoVE Core
Pharmacology
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JoVE Core Pharmacology
Skeletal Muscle Relaxants: Adverse Effects

7.9: 骨骼肌松弛剂:不良反应

603 Views
01:21 min
September 22, 2023
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Please note that some of the translations on this page are AI generated. Click here for the English version.

Overview

骨骼肌松弛剂广泛用于肌肉麻痹和缓解任何肌肉损伤或僵硬后的疼痛。但是,根据药物类型,它们可能会产生从轻微到严重的不良反应。通常,非去极化神经肌肉阻滞剂的副作用很小。例如,d-tubocurarine、cisatracurium 和 rocuronium 等药物会引起低血压,而巴氯芬等药物突然停药时,会导致痉挛性疾病的复发。

与非去极化阻滞剂不同,琥珀胆碱是一种去极化阻滞剂,具有更严重的不良反应,包括高钾血症、心律失常、术后肌肉疼痛、眼压升高和胃压升高引起的胃内容反流。

肉毒杆菌毒素和丹曲林等直接作用药物的不良反应包括全身肌肉无力和肝毒性。此外,肉毒杆菌毒素会导致呼吸道感染和膀胱失控。

最后,影响中枢神经系统或 CNS 的中枢作用肌肉松弛剂会诱发 CNS 抑制的各种症状。例如,替扎尼定会引起嗜睡、低血压、头晕、口干和肝毒性,而地西泮会引起焦虑、震颤、失眠和幻觉。避免向高危患者(如癫痫患者或孕妇)服用高剂量药物可能有助于减轻副作用的严重程度。

Transcript

骨骼肌松弛剂以调节剂量给药,以尽量减少不良反应。不良反应及其严重程度取决于所用松弛剂的类型。

例如,非去极化阻滞剂的副作用很小,但直接作用的阻滞剂可能导致全身肌肉无力和肝毒性。

相比之下,像琥珀胆碱这样的去极化阻滞剂与严重的不良反应有关,包括心律失常、术后肌肉疼痛、长时间呼吸暂停甚至呼吸停止。

因此,正确剂量的琥珀胆碱变得至关重要,尤其是对于胆碱酯酶突变的患者。

由于这些患者无法正确代谢和消除琥珀胆碱,因此他们的肌肉(例如横膈膜)恢复延迟。由于隔膜保持麻痹,会导致呼吸暂停,镇静患者会停止呼吸。

此外,琥珀胆碱有助于钾从细胞内储存中释放。因此,必须避免用于已经遭受快速钾流失的烧伤、神经损伤或肾功能衰竭的患者,以防止心脏骤停。

Explore More Videos

骨骼肌松弛剂 不良反应 肌肉麻痹 非去极化神经肌肉阻滞剂 低血压 巴氯芬 痉挛状态 琥珀胆碱 高钾血症 心律失常 术后肌肉疼痛 肉毒杆菌毒素 丹曲林 中枢神经系统抑制 替扎尼定 地西泮 肝毒性

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