Evaluating the effectiveness of stellate ganglion blockades (SGBs) proves challenging, since the criteria defining a successful blockade are controversial. This may be one reason for the scarcity of studies on this topic, thus forcing clinical guidelines to remain conservative in recommending SGBs. Moreover, factors to predict which patients will benefit from blockade series are not yet available.

中文翻译：

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超声引导星状神经节阻滞治疗交感神经持续疼痛的有效性、安全性和预测潜力。

评估星状神经节阻滞 (SGB) 的有效性证明具有挑战性，因为定义成功阻滞的标准是有争议的。这可能是该主题研究稀缺的原因之一，从而迫使临床指南在推荐 SGB 时保持保守。此外，预测哪些患者将从封锁系列中受益的因素尚不可用。