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Table 3 Causes of SIADH

From: Hyponatremia in the intensive care unit: How to avoid a Zugzwang situation?

Paraneoplastic production of AVP Eutopic production of AVP/ enhanced hypothalamo–pituitary release of AVP
SCLC non-SCLC CNS disorders
Head and neck cancer  Infectious: meningitis, encephalitis, brain abscess
 Mesothelioma  Vascular: SAH, subdural hematoma, thrombosis
 Stomach carcinoma  Multiple sclerosis
 Duodenum carcinoma  Acute intermittent porphyria
 Thymoma  Guillain-Barré syndrome
 Lymphoma  Shy-Drager syndrome
 Olfactory neuroblastoma  Schizophrenia
 Bladder carcinoma Pulmonary disorders
 Sarcoma  Pneumonia, tuberculosis
Potentiation of AVP effects  Pneumothorax, atelectasis
 Carbamazepine  Asthma, cystic fibrosis
 Sodium valproate  Positive pressure ventilation
 Cyclophosphamide Drugs
   Neuroleptics
   TCC, MAOI, and SSRI antidepressants
   Antineoplastic drugs
  Others
   Hypopituitarism
   Severe hypothyroidism
   Nausea, pain
  1. AVP arginine vasopressin, SCLC small cell lung cancer, SAH subarachnoidal hemorrhage, TCC tricyclic antidepressant, MAOI monoamine oxydase inhibitor antidepressant, SSRI selective serotonin uptake inhibitor antidepressant