Skip to main content

Table 1 Demographics of the patient population

From: QRS pattern and improvement in right and left ventricular function after cardiac resynchronization therapy: a radionuclide study

Patient demographics (n= 56)

 

Age (years)

66 ± 11

Males

42 (75%)

Aetiology of heart failure

 

   Ischaemic

22 (39%)

   Non-ischaemic

34 (61%)

NYHA class

 

   III

49 (88%)

   IV

7 (12%)

Paroxysmal AF

5 (9%)

Hypertension

30 (54%)

Diabetes

19 (34%)

Chronic kidney disease

14 (25%)

QRS morphology

 

   LBBB

32 (57%)

   RBBB

4 (7%)

   Non-specific IVCD

20 (36%)

QRS duration (ms)

140 (120-160)

QRS ≥ 150 ms

27 (48%)

LVEF (%)

22 ± 6

RVEF (%)

36 ± 10

Traitement

 

   ACE-I/ARBs

52 (93%)

   Beta-blockers

39 (70%)

   Diuretics

50 (89%)

  1. NYHA class, New York Heart Association class; AF, atrial fibrillation; LBBB, left bundle branch block; RBBB, right bundle branch block; IVCD, intraventricular conduction disturbance; LVEF, left ventricular ejection fraction; RVEF, right ventricular ejection fraction; ACE-Is, angiotensin-converting enzyme inhibitors; ARBs, angiotensin II receptor blockers