蟾蜍毒素中毒致心律失常一例

2013-07-29 刘伟 等 中华心律失常学杂志

蟾蜍毒素中毒导致心律失常极为罕见,现报道1例成功救治的蟾蜍毒素中毒致心律失常病例。 患者,男,86岁,因“结肠癌术后3年,突发呼吸困难,伴头晕、全身大汗及四肢厥冷,服用速效救心丸后未明显缓解,遂急人院就诊。主要体征:脉搏45次/min,血压90/45 mm Hg(1mm Hg=0.133 kPa)。神志清,精神差,全身大汗淋漓,双肺呼吸音清,未闻及干湿啰音

蟾蜍毒素中毒导致心律失常极为罕见,现报道1例成功救治的蟾蜍毒素中毒致心律失常病例。

患者,男,86岁,因“结肠癌术后3年,突发呼吸困难,伴头晕、全身大汗及四肢厥冷,服用速效救心丸后未明显缓解,遂急人院就诊。主要体征:脉搏45次/min,血压90/45 mm Hg(1mm Hg=0.133 kPa)。神志清,精神差,全身大汗淋漓,双肺呼吸音清,未闻及干湿啰音,心率45次/min,心律不齐,心音弱,各瓣膜听诊区未闻及病理性杂音,腹部无明显异常,四肢厥冷,无水肿,神经系统检查无阳性体征。急查床旁心电图提示:逸搏心律,心率最慢40次/min,部分导联ST段呈鱼钩状下垂(图1);血常规、心肌酶及肌钙蛋白正常,血钾5.2 mmol/L。明确病情后立即给予皮下注射阿托品1mg并静脉持续滴注5%葡萄糖注射液+异丙肾上腺素1 mg+阿托品l mg治疗,同时监测心电图及血电解质变化,心电图提示交界性逸搏心律,心率48次/min(图2)。入院后第2天患者心律转复为窦性心律,心室率稳定于75次/min.复查心电图为窦性心律,胸闷、呼吸困难等症状消失。患者住院1周临床治愈出院,随访1个月未再出现任何心律失常。

图1 患者入院时心电图  

图2 患者交界性逸搏心律心电图

讨论

蟾蜍的药用价值很高,目前已被证实的有强心、中枢兴奋、局部麻醉、抗炎、抗癌及改善肿瘤患者放化疗后不良反应等作用。我国,尤其是民间,蟾蜍生物毒素治疗临床疑难杂症有着悠久的历史,但因毒性较大,故临床上不乏药物过量导致的食物中毒、过敏性休克及严重心律失常等病例。蟾蜍毒素中毒多因摄食污染蟾蜍毒素的蟾肉或服用过量含有蟾蜍毒素的中成药(如六神丸、金蟾丸)引起,广东等地比较多见。一般在进食0.5-2.0 h发病,出现剧烈的恶心、呕吐、腹痛、腹泻等消化道症状,神经系统表现有头痛、头晕、嗜睡、口唇四肢麻木、出汗、腱反射迟钝或消失;同时可出现各种心律失常,心电图改变酷似洋地黄中毒,抑制窦房结、房室结功能作用明显,心率减慢、心律不齐、房室阻滞及传导延迟。

本例患者无心律失常及心肌肥厚病史,亦无洋地黄类药物服用史,故可排除原发性窦房结功能障碍以及抗心律失常药物导致的心律失常,根据病史、临床表现、辅助检查等考虑为蟾蜍毒素中毒所致心律失常。患者症状为蟾蜍毒素直接由外用部位吸收入血所致,故无明显的消化道反应,临床表现以蟾蜍毒素的类洋地黄作用为突出,心电图提示异位心律、心动过缓及部分导联ST段鱼钩状下垂。

治疗上,当出现类洋地黄中毒表现时,应立即停止继续摄人此类药物,对于尚未引起严重的或完全性房室阻滞者,可酌情予以稀释的钾镁溶液,消除异位心律,同时给予阿托品、异丙肾上腺素等,提高缓慢的心率;严重病例或房室阻滞有发生晕厥的可能时,可在药物治疗的同时植入临时起搏器。

临床上此类患者如不详细询问病史,不易明确病因,甚至可能发生误诊。一旦病因明确后,临床治疗并不困难,因此在疾病的诊治过程中,病史采集显得尤为重要。除上述症状外临床上蟾蜍毒素中毒亦可发生心源性脑缺血综合征、血压下降和休克等,治疗过程中需临床医师开拓思路,全面把握。

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    2017-05-09 laoli

    谢谢分享,学习了!

    0

  2. [GetPortalCommentsPageByObjectIdResponse(id=195644, encodeId=8db11956440c, content=谢谢分享,学习了!, beContent=null, objectType=article, channel=null, level=null, likeNumber=57, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://wx.qlogo.cn/mmopen/ajNVdqHZLLC1BMzZWdMSPQWuib6BtQGicK8ygGBM6YakpfkRc67soFSuKbZr86enL1KggQZEZbgWSeicJibafmYfQ3AibicIHMwwicmDShfRFvvI38/0, createdBy=272a110164, createdName=laoli, createdTime=Tue May 09 06:42:34 CST 2017, time=2017-05-09, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=125850, encodeId=1ef81258504a, content=蟾蜍毒素可入药是知道的,过去农村老百姓曾用蟾蜍皮治疗慢支肺气肿,我也不知道有没有作用,而且有的人可能是用量没把握好,出现中毒及死亡。, beContent=null, objectType=article, channel=null, level=null, likeNumber=55, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://wx.qlogo.cn/mmopen/jW482SpianMayicTRbRZ5RzcjoLTEEgkSSQ8pVIiaf4a4INaoMLBV16QEk3dvvBRpicwIwmDGv0jePErJ4aE9ibVBDPtkialQLT9Bs/0, createdBy=04811949400, createdName=邓启付, createdTime=Tue Sep 13 23:00:00 CST 2016, time=2016-09-13, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=6025, encodeId=678260259a, content=科学的用数据说话啊 <br> , beContent=null, objectType=article, channel=null, level=null, likeNumber=105, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=bafb47087, createdName=kljjma, createdTime=Wed Aug 07 14:41:00 CST 2013, time=2013-08-07, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1318981, encodeId=f6471318981a7, content=<a href='/topic/show?id=14d92231508' target=_blank style='color:#2F92EE;'>#中毒#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=37, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=22315, encryptionId=14d92231508, topicName=中毒)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=f13d475, createdName=mashirong, createdTime=Wed Jul 31 07:56:00 CST 2013, time=2013-07-31, status=1, ipAttribution=)]
    2016-09-13 邓启付

    蟾蜍毒素可入药是知道的,过去农村老百姓曾用蟾蜍皮治疗慢支肺气肿,我也不知道有没有作用,而且有的人可能是用量没把握好,出现中毒及死亡。

    0

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    2013-08-07 kljjma

    科学的用数据说话啊

    0

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    2013-07-31 mashirong