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ARTICLE |

Cardiogenic Shock Associated With Disopyramide Phosphate

Stephen T. Sinatra, MD; Arthur B. Landry Jr, MD; J. Scott Galle, MD; Joseph Amato, MD
JAMA. 1980;243(11):1132. doi:10.1001/jama.1980.03300370012008.
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ABSTRACT

To the Editor.—  We would like to support the article by Story and colleagues (242:654, 1979) concerning cardiogenic shock and disopyramide phosphate. We recently had a similar case in one of our patients.

Report of a Case.—  A 63-year-old man was taking digoxin and had a previous history of myocardial infarction. His condition was evaluated for dyspnea and fatigue. Physical examination demonstrated summation gallops and a grade 2 to 3 late systolic murmur. The chest roentgenogram showed cardiomegaly and a mild degree of interstitial prominence. The resting ECG showed sinus tachycardia, an intravenous conduction delay of the left bundle-branch in type, and frequent multifocal premature ventricular contractions. In the presence of high-grade ventricular arrhythmia with R-on-T phenomena and multifocal ectopic activity, the patient began receiving disopyramide phosphate, 100 mg orally three times a day. Approximately 48 hours later, the patient had extreme shortness of breath, came into the emergency room,

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