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Related Experiment Videos

Electrocardiographic abnormalities during ritodrine administration.

C K Faidley1, P M Dix, M A Morgan

  • 1Department of Obstetrics and Gynecology, University of Oklahoma College of Medicine, Oklahoma City 73190.

Southern Medical Journal
|May 1, 1990
PubMed
Summary
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Ritodrine tocolysis can cause electrocardiographic abnormalities like ST segment depression in mothers. These changes are linked to increased heart rate, hyperglycemia, and hypokalemia during treatment.

Area of Science:

  • Cardiology
  • Obstetrics
  • Pharmacology

Background:

  • Electrocardiographic (ECG) abnormalities have been observed during ritodrine tocolysis.
  • Previous research lacked control groups to confirm these findings.

Purpose of the Study:

  • To evaluate ECG tracings in patients undergoing ritodrine tocolysis.
  • To compare these ECG findings with a matched control group.

Main Methods:

  • Continuous 24-hour ECG monitoring using Holter monitors for 8 patients on ritodrine and 8 controls.
  • Serial monitoring of 12-lead ECGs, serum glucose, and electrolytes.

Main Results:

  • Four out of eight patients receiving ritodrine showed ST segment depression.

Related Experiment Videos

  • No ECG abnormalities were detected in the control group.
  • ST segment depression correlated with maternal tachycardia, hyperglycemia, and hypokalemia.

    • Conclusions:

    • Ritodrine tocolysis is associated with significant ECG changes, specifically ST segment depression.
    • These changes are likely a consequence of ritodrine's physiological effects, including tachycardia, hyperglycemia, and hypokalemia.