Tianhong Cai, Rong Zhang, Kai Chen, Ting Deng, Tenghui Zhan
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Safety and efficacy of intra-arterial lidocaine administration for pain control in uterine artery embolization for cesarean scar pregnancy.
Background: Uterine artery embolization (UAE) for cesarean scar pregnancy (CSP) can cause significant pain.
Objectives: To evaluate safety and efficacy of intra-arterial lidocaine during UAE for CSP.
Methods: Retrospective study of 255 CSP patients: Control Group (184) without lidocaine; Study Group I (39) with unilateral lidocaine; Study Group II (32) with bilateral lidocaine. Outcomes included VAS pain scores and morphine usage.
Results: Early postoperative VAS scores (0-2 hours) were significantly lower in study groups (p < 0.001). No differences in later VAS scores (4-24 hours), maximal VAS scores, morphine dosage, or safety indicators.
Conclusion: Intra-arterial lidocaine during UAE for CSP provides effective analgesia immediately post-procedure but only for the first 2-4 hours, without reducing overall opioid requirements.
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