Cardiac resynchronisation therapy in patients with heart failure and a normal QRS duration: the RESPOND study

Objectives

To evaluate the clinical response to cardiac resynchronisation therapy (CRT) in patients with heart failure and a normal QRS duration (<120 ms).

Setting

Single centre.

Patients

60 patients with heart failure and a normal QRS duration receiving optimal pharmacological treatment (OPT).

Interventions

Patients were randomly assigned to CRT (n=29) or to a control group (OPT, n=31). Cardiovascular...