摘要
选取2021年11月-2023年10月该院行ERCP,术中提示胆总管大结石的患者( > 2 cm)38例,分为实验组(n = 18)和对照组(n = 20),实验组使用SpyGlass DS系统联合激光碎石治疗,对照组使用分次治疗(第1次放入胆管支架,3个月后再次行常规ERCP下胆总管结石取出术)。比较两组患者术后结石清除成功率和ERCP术后并发症发生率;手术3个月后随访,并复查磁共振胆胰管成像(MRCP),以明确是否有胆总管残余结石。
实验组手术时间长于对照组,差异有统计学意义(P < 0.05)。两组患者取石成功率和近期并发症发生率比较,差异均无统计学意义(P > 0.05),实验组远期并发症发生率低于对照组,但差异无统计学意义(P = 0.090)。
目前,胆总管结石的治疗方法较多,首选内镜逆行胰胆管造影术(endoscopic retrograde cholangiopancreatography,ERCP)。虽然ERCP可以通过括约肌切开术、机械网篮碎石术和球囊取出术,解决大多数常规大小的胆总管结石,而胆总管大结石(直径 > 2 cm)被称为困难结石,有时无法顺利取
回顾性分析2021年11月-2023年10月本院38例行ERCP的患者的临床资料,分为实验组(n = 18)和对照组(n = 20),实验组使用SpyGlass引导的激光碎石术,对照组使用分次取石治疗。实验组中,男7例,女11例;年龄30~83岁,平均(57.12±14.86)岁;对照组中,男12例,女8例;年龄34~83岁,平均(62.24±16.47)岁。两组患者基线资料比较,差异无统计学意义(P > 0.05),具有可比性。见
组别 | 性别/例 | 年龄/岁 | 结石大小/cm | |
---|---|---|---|---|
男 | 女 | |||
实验组(n = 18) | 7 | 11 | 57.12± 14.86 | 2.24±0.21 |
对照组(n = 20) | 12 | 8 | 62.24±16.47 | 2.16±0.20 |
t/ |
1.6 | 0.16 | 0.89 | |
P值 | 0.193 | 0.184 | 0.417 |
注: †为
纳入标准:年龄 > 18岁;超声、CT和/或磁共振成像等影像学检查提示胆总管结石者;最大结石直径 ≥ 2 cm;患者和家属同意参与本研究,并签署知情同意书。排除标准:活动性急性胰腺炎者;脓毒性休克者;有肝内胆管结石;有胰、胆、壶腹部恶性疾病者;既往行括约肌切开术;凝血功能异常(部分凝血活酶时间大于对照组的2倍)者;血小板偏低( < 50×1
十二指肠镜(生产厂家:Olympus,型号:TJF-260V),ERCP相关附件(包括:乳头括约肌切开刀、取石球囊、扩张球囊、导丝和鼻胆引流管等)、胆管塑料支架、胆道全覆膜金属支架和高频电刀等(生产厂家:南微医学科技股份有限公司);SpyGlass内镜直视系统(生产厂家:波士顿科学公司),双频激光仪(型号:U-100 Plus),相关附件(包括:SpyBite活检钳和SpyScope成像导管
行分次取石治疗。ERCP后,观察胆总管结石位置、大小和数量,尝试使用网篮取石,针对较大结石( > 2 cm),利用网篮碎石,若结石仍较大,无法取出,根据胆管长度和结石位置,放置胆管塑料支架,抽出导丝,结束操作。3个月后,再次行ERCP,重复术前准备步骤,ERCP后再次观察结石情况,并尝试采用网篮或取石球囊进行取石。将较大结石用网篮碎石后,分次取出,取石结束后,再次行胆管造影,以确保胆管内无残留结石,最后放置鼻胆引流管。术后常规禁食禁饮和胃肠减压,并给予质子泵抑制剂(proton pump inhibitor,PPI)抑酸、黏膜保护剂护胃、生长抑素抑制胰酶分泌和补液等治疗,观察患者有无腹痛、发热、恶心呕吐和呕血黑便等不适,于术后4、8和24 h复查血常规、血淀粉酶和尿淀粉酶,术后24 h复查肝功能和肾功能等指标。酌情使用抗生素治疗。如果两次尝试均未能取净结石,则建议行手术治疗。
采用SpyGlass DS系统激光碎石治疗。通过十二指肠镜的工作孔道,将SpyGlass DS系统传送导管连同光纤摄像头置入,并小心谨慎操作,将其送至胆管内进行直视下观察,此时,需观察结石的大小和性状,大致确定碎石操作的位置后,拔除导丝,送入激光光纤,于直视下,将光纤末端对准大结石,采用U-100 Plus双频激光仪进行碎

A

B

C

D
图1 SpyGlass DS引导的激光碎石术
Fig.1 Laser lithotripsy guided by SpyGlass DS
A:SpyGlass胆道镜示胆总管大结石;B:将光纤放置于大结石表面;C:SpyGlass DS引导的激光碎石术;D:碎石成功。
密切关注患者术后的腹部体征和生命体征等情况,于术后4、8和24 h,检测患者血尿淀粉酶、血常规和肝肾功能等指标。若出现明显腹痛伴随超出正常水平3倍的淀粉酶升高,需及时完善CT检查,结合症状和影像学结果,即可诊断为术后胰腺炎(postoperative pancreatitis,PEP)。若淀粉酶升高程度未达到正常范围的3倍,即可诊断为高淀粉酶血症。术后患者均给予胃肠减压,观察胃管引流情况,若出现咖啡色血或者鲜红色血,甚至出现黑便,考虑为术后出血。如患者腹部持续疼痛,伴有腹肌紧张,甚至出现腹膜刺激征,需及时完善CT或X线检查,提示膈下游离气体,则考虑为穿孔。若患者术后发热,体温超过38.5℃,伴有血象、碱性磷酸酶和谷氨酰转移酶升高,考虑为胆管炎。
实验组手术时间为(31.80±3.03)min,较对照组的(23.40±4.37)min明显延长,差异有统计学意义(P < 0.05)。实验组均一次性取石成功,取石成功率为100.00%,对照组有3例第2次ERCP取石未成功,取石成功率为85.00%,两组患者比较,差异无统计学意义(P = 0.090)。见
组别 | 手术时间/min | 取石成功率 例(%) |
---|---|---|
实验组(n = 18) | 31.80±3.03 | 18(100.00) |
对照组(n = 20) | 23.40±4.37 | 17(85.00) |
t/ | 6.70 |
2.9 |
P值 | 0.000 | 0.090 |
注: †为
实验组与对照组高淀粉酶血症、PEP、出血和胆道感染等近期并发症发生率比较,差异均无统计学意义(P > 0.05)。见
组别 | 高淀粉酶血症 | PEP | 出血 | 胆道感染 |
---|---|---|---|---|
实验组(n = 18) | 5(27.78) | 1(5.56) | 1(5.56) | 0(0.00) |
对照组(n = 20) | 7(35.00) | 2(10.0) | 0(0.00) | 1(5.00) |
| 0.23 | 0.26 | ||
P值 | 0.632 | 0.612 |
0.28 |
0.33 |
注: †为Fisher确切概率法。
困难胆总管结
临床关于分次治疗胆管困难结石与其他取石方法的对比研究较少,最近的一项回顾性研
SpyGlass DS直接可视化系统(SpyGlass DS)与第一代模型比较,其为数字版胆道镜,提高了图像分辨率,并纳入了专用的冲洗和吸引口,还有更能弯曲的尖端。这些改进可能有助于结石清除率的提高。如果所有患者均使用Spyglass DS引导下的激光碎石术,首次手术的结石清除率可能更高。有研
综上所述,SpyGlass DS引导下激光碎石术,结石清除率高,效果较好,术后近期和远期并发症与常规分次取石相当。但本研究仍存在一定的局限性,没有纳入更多、更复杂和更困难的结石患者,且样本量较小,可能存在偏倚,将来需要更多的研究数据来支持以上观点。
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