【爱儿小醉】食管内镜肌切开术后镁和食管疼痛:一项随机、双盲、安慰剂对照试验

2025-03-10 古麻今醉网 古麻今醉网 发表于陕西省

本研究通过前瞻性随机双盲对照试验,发现术中静脉输注硫酸镁可显著降低 POEM 术后食管疼痛强度及阿片类药物需求,对 2 型贲门失弛缓症效果尤佳,安全性良好,但存在局限性,未来需进一步研究。

前言

本研究聚焦于经口内镜下食管肌切开术(POEM)术后食管疼痛的管理难题。POEM作为治疗贲门失弛缓症的有效微创术式,术后胸骨后疼痛发生率高达67%,可能与食管双重神经支配(迷走与脊髓传入)及平滑肌痉挛相关。现有镇痛方案依赖阿片类药物、抗炎药及抗胆碱能药物,但这些药物可能加重食管动力障碍、延迟愈合,并增加术后谵妄风险,需探索更安全、针对性的替代策略。镁因其双重机制——拮抗NMDA受体(减少内脏痛觉敏化)及调节细胞内钙离子浓度(松弛平滑肌)——被视为潜在候选药物。既往研究表明,镁在产科(抑制子宫痉挛)及膀胱手术(缓解导管相关不适)中展现解痉与镇痛作用,但其在食管平滑肌相关疼痛中的应用尚未系统研究。基于此,本研究提出假设:术中静脉输注硫酸镁可通过平滑肌松弛作用,降低POEM术后食管疼痛强度及阿片类药物需求,为优化术后镇痛提供新方向。

方法

这项前瞻性、随机、双盲、安慰剂对照研究于美国斯坦福大学医学院附属斯坦福医院开展。研究方案经斯坦福大学医学院机构审查委员会批准(2020-58859)。试验在患者入组前注册(clinicaltrials.gov,NCT04638881,主要研究者:R. K. Kim,注册日期:2020年11月20日)。本文遵循《临床试验报告统一标准》(CONSORT)。所有参与者均签署书面知情同意书。

研究人群:纳入:≥18岁、拟行POEM的成人患者(n=92)。排除:术前使用阿片类药物、肾功能不全、房室传导阻滞、高镁血症(>2.9 mg/dL)等。随机与盲法:计算机生成随机区组列表(1:1分配),密封信封分配至镁剂组或对照组(生理盐水)。麻醉团队未设盲(基于安全考量),但结局评估者、术者及患者全程设盲。干预方案:镁剂组:硫酸镁50 mg/kg推注(15分钟)+25 mg/kg/h持续输注至拔管。对照组:等量生理盐水,输注方式相同。标准化镇痛:术中联合地塞米松(0.1 mg/kg)、对乙酰氨基酚(1000 mg)、酮咯酸(30 mg)及芬太尼(≤100 μg)。指标:主要结果:PACU内改良食管症状问卷(ESQ)评分(11项,7分Likert量表,总分77分)。次要结果:术后第1天ESQ评分、疼痛数字评分(NRS)、阿片类药物需求量(转换为吗啡毫克当量)。安全性指标:低血压、呼吸抑制等不良事件,术后24小时血镁浓度。

统计方法:主要结果采用Mann-Whitney U检验,次要结果使用Welch校正t检验或Mann-Whitney U检验。

结果

图1显示了研究流程图。123名患者被评估为合格,31名患者被排除。随机选取92例患者,并纳入最终分析。两组研究组的术前、术内和手术特征相似(表1和2)所有患者均根据研究方案接受地塞米松、乙酰氨基苯和酮咯酸治疗。该方案中允许每人使用100µg芬太尼。镁组在POEM手术中给予5.5 ± 1.8 g硫酸镁。与对照组相比,镁组的POD 1术后镁浓度仍显著升高。

图片

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主要结果

镁剂组在PACU组中的ESQ评分显著低于对照组 组间差异为10分(主要结果,中位数[25th一75th],24[18一31]vs35[28一42];中位数差异[95% CI],-10[-13至-6];P < .0001;图2)。治疗镁以显著减少POEM后食管不适的绝对风险降低和数量分别为0.37和3。

图片

次要结果

与对照组相比,镁质组对POD 1的ESQ评分也显著降低(16[14一23]vs30[24一35];P < .0001)。PACU(30[14一41]mgvs0[0一4]mg;P < .0001)和POD1(6[0一20]mgvs0[0一0]mg[0一0]mg;P < .0001;图3)中镁组的阿片类药物需求减少。同样,在PACU(0[0一3] vs5[5一7];[5一7];P < .0001)和POD1(0[0一2]vs4[3一5];P < .0001)中,镁组的NRS疼痛评低。

图片

事后分析

2型失弛缓症镁组PACU和POD 1的ESQ评分较低(24[17 一33]vs35[28一44];中位数差异[99% CI],-10[-18至-3];P = .0003;图4)。2型和3型失弛缓症的镁剂组的PACU和POD1上的NRS疼痛评分显著降低,但1型则没有。

图片

术后不良反应

镁组和对照组之间在恶心和呕吐方面没有显著差异。

结论

本研究证实,术中应用硫酸镁可显著降低经口内镜下食管肌切开术(POEM)患者的术后食管疼痛严重程度及阿片类药物需求量,且安全性良好。镁剂组患者在麻醉后监护室(PACU)和术后第1天的食管症状问卷(ESQ)评分、疼痛评分(NRS)均显著低于对照组(如PACU中位ESQ评分:24 vs 35, P<0.0001)。阿片类药物需求大幅减少(PACU中位用量:0 mg vs 30 mg吗啡当量, P<0.0001),尤其对2型贲门失弛缓症患者效果更显著。安全性:术后24小时血镁浓度(2.6 ± 0.3 mg/dL)远低于中毒阈值,未报告低血压、呼吸抑制等严重不良反应。局限性:单中心设计、麻醉团队未完全设盲及未纳入特殊人群(如肾功能不全患者)可能限制结果外推性。未来方向:需优化镁剂剂量与给药时机,探索其作用机制(如NMDA受体拮抗与钙通道调控),并通过多中心研究验证其在广泛人群中的适用性。综上,术中硫酸镁可作为POEM术后多模式镇痛的安全有效策略,为平滑肌相关疼痛管理提供新思路,但临床应用需结合患者个体特征谨慎实施。

爱儿小醉 点评

小儿内镜下食管肌切开术(POEM)逐渐增多,该研究为POEM术后镇痛提供了高质量证据,证实术中镁剂可有效减轻食管疼痛并减少阿片类药物需求,且安全性良好。未来需进一步优化小儿用药、阐明机制,并通过多中心研究验证其广泛适用性。

参考文献

Kim, Richard K. MD, MSc*; Kim, James W. MD; Angelotti, Timothy MD, PhD*; Esquivel, Micaela MD; Tsui, Ban C. MD*; Hwang, Joo H. MD, PhD    Magnesium and Esophageal Pain After Peroral Endoscopic Myotomy of the Esophagus: A Randomized, Double-Blind, Placebo-Controlled Trial Anesthesia & Analgesia 140(1):p 54-61, January 2025. | DOI: 10.1213/ANE.0000000000006990

评论区 (5)
#插入话题
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    2025-03-10 李源 来自江西省

    这试验有意思

    0

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    2025-03-10 13013f32m56暂无昵称 来自河北省

    食管内镜肌层切开术后食管疼痛

    0

  4. [GetPortalCommentsPageByObjectIdResponse(id=2255408, encodeId=b5582255408d7, content=这试验有意思, beContent=null, objectType=article, channel=null, level=null, likeNumber=16, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://wx.qlogo.cn/mmopen/NUyjXTCJjo6KcicAVC1MwuE81bF8yB1jSEcJCnGq0gwLaAYeeq5Hib0j5UttV0fmsMBuvsUrq4aefrCcicLxvib1ic4pxic5E30nkia/0, createdBy=27152007413, createdName=李源, createdTime=Mon Mar 10 08:30:25 CST 2025, time=2025-03-10, status=1, ipAttribution=江西省), GetPortalCommentsPageByObjectIdResponse(id=2255378, encodeId=1aa022553e85e, content=<a href='/topic/show?id=6634e3575cf' target=_blank style='color:#2F92EE;'>#硫酸镁#</a> <a href='/topic/show?id=db6212495554' target=_blank style='color:#2F92EE;'>#经口内镜下食管肌切开术#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=23, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=73575, encryptionId=6634e3575cf, topicName=硫酸镁), TopicDto(id=124955, encryptionId=db6212495554, topicName=经口内镜下食管肌切开术)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=cade5395722, createdName=梅斯管理员, createdTime=Sun Mar 09 22:36:12 CST 2025, time=2025-03-09, status=1, ipAttribution=陕西省), GetPortalCommentsPageByObjectIdResponse(id=2255403, encodeId=128f22554037f, content=食管内镜肌层切开术后食管疼痛, beContent=null, objectType=article, channel=null, level=null, likeNumber=16, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=20c53431821, createdName=13013f32m56暂无昵称, createdTime=Mon Mar 10 07:43:38 CST 2025, time=2025-03-10, status=1, ipAttribution=河北省), GetPortalCommentsPageByObjectIdResponse(id=2255397, encodeId=6994225539e7d, content=POEM作为治疗贲门失弛缓症的有效微创术式,术后胸骨后疼痛发生率高达67%,可能与食管双重神经支配(迷走与脊髓传入)及平滑肌痉挛相关, beContent=null, objectType=article, channel=null, level=null, likeNumber=13, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://img.medsci.cn/20210925/20274508595745adb221d4af84f71a30/44cac845ab1e4a3a81ff3fe6373b97b0.jpg, createdBy=2a601767050, createdName=Mongolian, createdTime=Mon Mar 10 06:16:16 CST 2025, time=2025-03-10, status=1, ipAttribution=内蒙古), GetPortalCommentsPageByObjectIdResponse(id=2255384, encodeId=a9f2225538418, content=POEM作为治疗贲门失弛缓症的有效微创术式,术后胸骨后疼痛发生率高达67%,可能与食管双重神经支配(迷走与脊髓传入)及平滑肌痉挛相关。, beContent=null, objectType=article, channel=null, level=null, likeNumber=19, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=a1646442901, createdName=ms4000001513304915, createdTime=Sun Mar 09 22:45:30 CST 2025, time=2025-03-09, status=1, ipAttribution=广东省)]
    2025-03-10 Mongolian 来自内蒙古

    POEM作为治疗贲门失弛缓症的有效微创术式,术后胸骨后疼痛发生率高达67%,可能与食管双重神经支配(迷走与脊髓传入)及平滑肌痉挛相关

    0

  5. [GetPortalCommentsPageByObjectIdResponse(id=2255408, encodeId=b5582255408d7, content=这试验有意思, beContent=null, objectType=article, channel=null, level=null, likeNumber=16, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://wx.qlogo.cn/mmopen/NUyjXTCJjo6KcicAVC1MwuE81bF8yB1jSEcJCnGq0gwLaAYeeq5Hib0j5UttV0fmsMBuvsUrq4aefrCcicLxvib1ic4pxic5E30nkia/0, createdBy=27152007413, createdName=李源, createdTime=Mon Mar 10 08:30:25 CST 2025, time=2025-03-10, status=1, ipAttribution=江西省), GetPortalCommentsPageByObjectIdResponse(id=2255378, encodeId=1aa022553e85e, content=<a href='/topic/show?id=6634e3575cf' target=_blank style='color:#2F92EE;'>#硫酸镁#</a> <a href='/topic/show?id=db6212495554' target=_blank style='color:#2F92EE;'>#经口内镜下食管肌切开术#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=23, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=73575, encryptionId=6634e3575cf, topicName=硫酸镁), TopicDto(id=124955, encryptionId=db6212495554, topicName=经口内镜下食管肌切开术)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=cade5395722, createdName=梅斯管理员, createdTime=Sun Mar 09 22:36:12 CST 2025, time=2025-03-09, status=1, ipAttribution=陕西省), GetPortalCommentsPageByObjectIdResponse(id=2255403, encodeId=128f22554037f, content=食管内镜肌层切开术后食管疼痛, beContent=null, objectType=article, channel=null, level=null, likeNumber=16, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=20c53431821, createdName=13013f32m56暂无昵称, createdTime=Mon Mar 10 07:43:38 CST 2025, time=2025-03-10, status=1, ipAttribution=河北省), GetPortalCommentsPageByObjectIdResponse(id=2255397, encodeId=6994225539e7d, content=POEM作为治疗贲门失弛缓症的有效微创术式,术后胸骨后疼痛发生率高达67%,可能与食管双重神经支配(迷走与脊髓传入)及平滑肌痉挛相关, beContent=null, objectType=article, channel=null, level=null, likeNumber=13, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://img.medsci.cn/20210925/20274508595745adb221d4af84f71a30/44cac845ab1e4a3a81ff3fe6373b97b0.jpg, createdBy=2a601767050, createdName=Mongolian, createdTime=Mon Mar 10 06:16:16 CST 2025, time=2025-03-10, status=1, ipAttribution=内蒙古), GetPortalCommentsPageByObjectIdResponse(id=2255384, encodeId=a9f2225538418, content=POEM作为治疗贲门失弛缓症的有效微创术式,术后胸骨后疼痛发生率高达67%,可能与食管双重神经支配(迷走与脊髓传入)及平滑肌痉挛相关。, beContent=null, objectType=article, channel=null, level=null, likeNumber=19, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=a1646442901, createdName=ms4000001513304915, createdTime=Sun Mar 09 22:45:30 CST 2025, time=2025-03-09, status=1, ipAttribution=广东省)]
    2025-03-09 ms4000001513304915 来自广东省

    POEM作为治疗贲门失弛缓症的有效微创术式,术后胸骨后疼痛发生率高达67%,可能与食管双重神经支配(迷走与脊髓传入)及平滑肌痉挛相关。

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