Abstract
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.