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Findings that shed new light on the possible pathogenesis of a disease or an adverse effect
Hypoventilation: a risk factor for milk alkali syndrome?
  1. Felix Burkhalter,
  2. Christian Forster,
  3. Michael Dickenmann
  1. Department of Nephrology, Universitätsspital Basel, Basel, Switzerland
  1. Correspondence to Felix Burkhalter, fburkhalter{at}uhbs.ch

Summary

A 67-year-old woman was admitted to the hospital due to progressive mental changes, nausea and vomiting after a dose increase of an intrathecal morphine pump. We found severe hypercalcaemia due to milk alkali syndrome (MAS). Her symptoms resolved quickly after normalisation of hypercalcaemia.

Similar to the original and the modern versions of the syndrome, ingested carbonate was the main source of bicarbonate in our case. The main trigger was a morphine overdose with volume contraction due to vomiting and a further aggravation of chronic compensatory elevation of bicarbonate due to hypoventilation leading to MAS; thus, suggesting hypoventilation as a risk factor for MAS.

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Footnotes

  • Competing interests None.

  • Patient consent Obtained.

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