超声引导联合CT验证对半月神经节射频热凝术穿刺效果的影响

Influence of ultrasound guidance combined with CT verification on the puncture effect of radiofrequency thermocoagulation of semilunar ganglion

目的探讨超声引导联合CT验证对第三支三叉神经痛(TN)患者经卵圆孔半月神经节射频热凝术穿刺效果的影响。方法选择拟行经卵圆孔半月神经节射频热凝术治疗的第三支TN患者48例,男19例,女29例,年龄>18岁,BMI≤28 kg/m^(2)。采用随机数字表法将患者分为两组:超声引导联合CT验证组(U组)和单纯CT引导组(C组),每组24例,分别接受超声引导联合CT验证和单纯CT引导下经皮卵圆孔穿刺,并实施半月神经节射频热凝术。记录穿刺成功例数、穿刺次数、辐射剂量、穿刺时间、手术时间。记录术前、术后2、4、12、24周NRS评分、巴罗神经学研究所(BNI)评分,计算术后疼痛良好缓解率(BNI评分Ⅰ或Ⅱ级)。记录治疗过程中不良反应的发生情况。结果两组均完成穿刺操作和射频热凝治疗。与C组比较,U组穿刺次数明显减少,辐射暴露明显降低,穿刺时间和手术时间明显缩短(P<0.05)。与术前比较,两组术后2、4、12、24周NRS评分明显降低(P<0.05)。两组术后2、4、12、24周疼痛良好缓解率、面部血肿发生率差异无统计学意义,两组均未发生其他严重治疗并发症。结论超声引导联合CT验证下实施经卵圆孔半月神经节射频热凝术是治疗第三支TN的安全可行方案,与单纯CT引导比较,超声引导联合CT验证可以明显提升穿刺精准性并降低治疗相关的辐射暴露。

Objective To investigate the puncture effect of radiofrequency thermocoagulation of semilunar ganglion through the foramen ovale with ultrasound guidance and CT verification in the treatment of V3 branch trigeminal neuralgia(TN).Methods Forty-eight V3 branch TN patients,19 males and 29 females,aged>18 years,BMI≤28 kg/m^(2),undergoing radiofrequency thermocoagulation of semilunar ganglion through the foramen ovale were selected.Patients were divided into two groups by random number table method:ultrasound guidance combined with CT verification group(group U)and CT guidance group(group C),24 patients in each groups.According to grouping result,patients received radiofrequency thermocoagulation of semilunar ganglion with foramen ovale puncture performed under the ultrasound guidance and CT verification or CT guidance respectively.The success cases of puncture,the number of puncture,radiation dose,puncture time,operation time and the occurrence of treatment complications were recorded.Numerical rating scale(NRS)scores and Barrow neurological institute(BNI)scores were recorded before surgery,2,4,12,and 24 weeks after surgery,and good postoperative pain relief rate(BNIⅠorⅡ)was calculated.Results All patients in both groups completed puncture operationand radiofrequency thermocoagulation.Compared with group C,group U had fewer number of puncture,lower radiation exposure,and shorter puncture and surgical times(P<0.05).Compared with baseline before operation,NRS scores were significantly lower in both groups at 2,4,12,and 24 weeks after surgery(P<0.05).There was no significant difference in the rate of good pain relief 2,4,12,and 24 weeks after surgery between the two groups.There was no significant difference in the incidence of facial hematoma between the two groups.No other serious complications were found in both groups.Conclusion Radiofrequency thermocoagulation of semilunar ganglion through the foramen ovale with ultrasound guidance and CT verification is a safe and feasible method for the treatment of the V3 branch TN.Compared with CT guidance,ultrasound guidance combined with CT verification can significantly improve the puncture accuracy and reduce the radiation exposure related to treatment.