Q-aTc interval as a clinical indicator of hypercalcemia.

  title={Q-aTc interval as a clinical indicator of hypercalcemia.},
  author={David W Nierenberg and Bernard J. Ransil},
  journal={The American journal of cardiology},
  volume={44 2},
The charts were reviewed of more than 200 patients discharged from the hospital between 1972 and 1977 with a diagnosis implying abnormal calcium metabolism. When all other variables known to affect the Q-T interval were eliminated, serum calcium concentrations on 65 occasions in 39 patients were found to correlate significantly (P less than 0.001 or better) with the following electrocardiographic intervals: Q-aTc (beginning of QRS complex to apex of T wave), Q-oTc (beginning of QRS complex to… CONTINUE READING

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