Table 1

 Characteristics of the study patients

PatientAge (years)SexAFAF duration (years)*Underlying cardiac conditionPacemaker modePPM implanted (years)Baseline QRS duration (ms)
*Six month approximation.
AF, atrial fibrillation; DCM, dilated cardiomyopathy; F, female; IHD, ischaemic heart disease; lone AF, atrial fibrillation in the absence of hypertension or structural heart disease; M, male; PPM, permanent pacemaker.
154MPermanent5.5DCMVVI3190
268MPermanent12DCMVVI10160
358MPermanent3LoneVVI1280
464MParoxysmal4LoneDDD1.5280
574FPermanent7.5IHDVVI2150
659FPermanent4.5LoneVVI2.5170
745MParoxysmal3LoneDDD1170
862MPermanent6.5HypertensionVVI3162
951FPermanent4LoneVVI2160
1065MPermanent5.5LoneVVI1.5170
1171MPermanent18HypertensionVVI2200
1268FPermanent9LoneVVI3.5160