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Short Reports

Extracorporeal life support in a severe Taxus baccata poisoning

, , , , , & show all
Pages 463-465 | Received 15 Dec 2009, Accepted 19 Apr 2010, Published online: 09 Jun 2010
 

Abstract

Introduction. Yew (Taxus baccata) is a conifer known to be toxic since ancient times. Taxine A and taxine B, the toxic alkaloids of Taxus, block cardiac sodium and calcium channels causing nausea, vomiting, abdominal pain, cardiac arrhythmias, respiratory distress, coma, seizures, and death in yew poisoning. Case report. A 44-year-old male farmer was admitted to the hospital because of a suspected myocardial infarction. First bradycardia and then ventricular tachycardia were present and a severe right ventricular dilatation with biventricular dysfunction was observed but with normal coronary arteriography. He was resistant to conventional therapy and, 6 h after hospital admission, extracorporeal support with membrane oxygenation was applied. The patient recovered. Nine days later, a large number of yew leaves were unexpectedly observed in his feces. Botanical and laboratory analysis confirmed the poisoning. Blood (651 ng/mL) and urinary (5.6 mcg/mL) levels of 3,5-dimethoxyphenol (metabolite of taxicatine) were greater than previously reported in lethal cases. The patient was transferred to a psychiatric unit 17 days after admission. Conclusions. Intensive treatment of severe cardiovascular symptoms with antiarrhythmic drugs, temporary pacemaker, intra-aortic balloon pump, extracorporeal membrane oxygenation, and extracorporeal life support can be life-saving even after a potentially lethal ingestion of T. baccata leaves.

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