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Osborn wave

Osborn wave (J wave, ie, notching of the terminal QRS complex) on EKG, which may be seen in hypothermia and severe hypercalcemia. (Source J E Roediger. Courtesy of Wikipedia.)

Associated Disorders

  • Acute and chronic renal failure
  • Endocrine disorders
  • Familial hypocalciuric hypercalcemia
  • Granulomatous disorders
  • Infantile hypercalcemia (Williams syndrome)
  • Malignancy
  • Milk-alkali syndrome
  • Primary hyperparathyroidism