Case Report: Alocasia poisoning presenting with marked QTc prolongation and a MINOCA-like phenotype - Takeaways - MDSpire

Case Report: Alocasia poisoning presenting with marked QTc prolongation and a MINOCA-like phenotype

  • By

  • Jin-Mei Xie

  • Ren-Rong Lu

  • Zong-Jie Zheng

  • Jie Ma

  • Cheng-Hua Shan

  • May 29, 2026

  • 0 min

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  • 1

    A 75-year-old woman ingested 10 g of Alocasia macrorrhizos, leading to oral numbness, throat swelling, and heartburn.

  • 2

    After 26 hours, she developed persistent chest pressure and presented to the hospital with a QTc interval of 590 ms.

  • 3

    Coronary angiography revealed no obstructive lesions, and echocardiography showed reduced wall motion consistent with MINOCA.

  • 4

    The patient's chest pain resolved after supportive care, and her QTc interval normalized to 440 ms by hospital day 5.

  • 5

    This case highlights the potential for Alocasia poisoning to cause significant QTc prolongation and toxic myocardial injury.

Original Source(s)

Case Report: Alocasia poisoning presenting with marked QTc prolongation and a MINOCA-like phenotype

  • by Jin-Mei Xie, Ren-Rong Lu, Zong-Jie Zheng, Jie Ma, Cheng-Hua Shan

  • May 29, 2026

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