Sleep apnoea induces cardiac electrical instability assessed by T‐wave alternans in patients with congestive heart failure

To assess the involvement of sleep apnoea in nocturnal sudden cardiac death (SCD) by evaluating cardiac electrical instability using T‐wave alternans (TWA), a risk marker for lethal cardiac arrhythmias, and severity of sleep apnoea in congestive heart failure (CHF) patients.

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