Cisplatin-induced syndrome of inappropriate antidiuretic hormone secretion (SIADH) with life-threatening hyponatraemia

We present a case of cisplatin-induced syndrome of inappropriate antidiuretic hormone (SIADH) in a patient with metastatic recurrent urothelial carcinoma. Cisplatin-induced SIADH is an uncommon but potentially life-threatening toxicity. Pharmacogenetic characteristics may result in different toxicity profiles in different populations. With such widespread use of cisplatin in a diverse range of cancers, prompt recognition is crucial to detect and prevent severe neurological sequelae.

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