Conclusion: Pump of PECA during labor is safe and effective, which accelerates duration of labor and reduces rates of cesarean and dystocia.

• 结论PECA泵用于持续硬膜外腔给药镇痛，疼痛阻滞完善，加速了产程的进展，降低了剖宫产率阴道难产率，对母婴均无不良影响。