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首页> 外文期刊>International journal of obstetric anesthesia >Unintentional subdural catheter placement during labor analgesia shows typical radiological pattern but atypical response to the Tsui test.
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Unintentional subdural catheter placement during labor analgesia shows typical radiological pattern but atypical response to the Tsui test.

机译：分娩镇痛时无意中硬膜下置管显示典型的放射学表现，但对Tsui测试的反应不典型。

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摘要

Subdural injection may be associated with abnormally extensive or limited spread of local anesthetics during neuraxial anesthesia. This complication is difficult to diagnose clinically. Radiological imaging is the gold standard for confirming the location of subdural catheter, but electrical stimulation of the catheter has also been described as a useful diagnostic tool. We present the case of an obstetric patient with unintentional subdural catheter placement that presented as a failed epidural block associated with severe upper back and scapular pain on catheter injection. Electrical stimulation of the catheter did not elicit muscle contractions until a current of 4 mAmp was attained, which is the response pattern of epidural placement. Subdural location of the catheter was subsequently confirmed by contrast radiography. This case adds to the evidence that subdural catheters are difficult to identify clinically, and that electrical stimulation may not differentiate them from epidural catheters.
机译：硬膜下注射可能与神经麻醉中局部麻醉药的异常广泛或局限性扩散有关。这种并发症很难在临床上诊断。放射成像是确认硬膜下导管位置的金标准，但是导管的电刺激也已被描述为一种有用的诊断工具。我们介绍了一个产科患者意外硬膜下置入导管的情况，该病例表现为失败的硬膜外阻滞，伴有严重的上背部疼痛和导管注射时的肩pain骨疼痛。直到达到4 mAmp的电流，导管的电刺激才引起肌肉收缩，这是硬膜外放置的反应模式。随后通过造影造影确认导管的硬膜下位置。该病例增加了硬膜下导管在临床上难以识别的证据，并且电刺激可能无法将其与硬膜外导管区分开。

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