Conflicting Results From Two Trials Of Cardiac Resynchronization Therapy Reply

Two new trials have ended up reporting conflicting results regarding the expansion of the indication for cardiac resynchronization therapy (CRT) for patients without a wide QRS interval.  The positive results of the smaller trial seem likely to be undermined by the early stopping of the much larger trial.

The first trial, NARROW-CRT, published in Circulation: Arrhythmia and Electrophysiology, concluded that CRT “improved clinical status in some patients with ischemic cardiomyopathy, mild-to-moderate symptoms, narrow QRS duration, and mechanical dyssynchrony on echocardiography.” The second trial, EchoCRT, which was testing CRT in heart failure patients with narrow QRS, was terminated early due to futility.

Click here to read the full story on Forbes.


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