| Variable . | Coronary sinus CRT upgrade . | Endocardial CRT upgrade . | P-value . |
|---|---|---|---|
| Age, mean ± SD | 70.9 ± 11.7 | 69.1 ± 10.2 | 0.110 |
| Male, n/N (%) | 97/121 (80.2) | 82/104 (78.9) | 0.807 |
| Ischaemic cardiomyopathy, n/N (%) | 54/121 (44.6) | 40/104 (38.5) | 0.350 |
| Comorbidities, n/N (%) | |||
| Cardiac surgery | 20/121 (16.5) | 30/97 (30.9) | 0.012 |
| Hypertension | 42/121 (34.7) | 58/98 (59.2) | <0.001 |
| Atrial fibrillation | 70/121 (57.9) | 62/104 (59.6) | 0.789 |
| Diabetes mellitus | 33/121 (27.3) | 24/98 (24.5) | 0.641 |
| Chronic obstructive airways disease | 12/121 (9.9) | 19/98 (19.4) | 0.046 |
| Chronic kidney disease | 26/121 (21.5) | 45/97 (46.4) | <0.001 |
| Cardiovascular accident | 9/73 (12.33) | 17/97 (17.5) | 0.351 |
| New York Heart Association functional class, mean ± SD | 2.8 ± 0.7 | 2.6 ± 0.5 | 0.031 |
| QRS duration, mean ± SD | 170.6 ± 27.8 | 181.9 ± 30.2 | 0.008 |
| Echocardiogram, mean ± SD | |||
| Left ventricular ejection fraction | 29.5 ± 8.6 | 30.0 ± 8.3 | 0.678 |
| Left ventricular end-diastolic volume | 186.2 ± 55.2 | 187.2 ± 90.3 | 0.246 |
| Left ventricular end-systolic volume | 129.8 ± 45.5 | 133.9 ± 75.7 | 0.499 |
| Variable . | Coronary sinus CRT upgrade . | Endocardial CRT upgrade . | P-value . |
|---|---|---|---|
| Age, mean ± SD | 70.9 ± 11.7 | 69.1 ± 10.2 | 0.110 |
| Male, n/N (%) | 97/121 (80.2) | 82/104 (78.9) | 0.807 |
| Ischaemic cardiomyopathy, n/N (%) | 54/121 (44.6) | 40/104 (38.5) | 0.350 |
| Comorbidities, n/N (%) | |||
| Cardiac surgery | 20/121 (16.5) | 30/97 (30.9) | 0.012 |
| Hypertension | 42/121 (34.7) | 58/98 (59.2) | <0.001 |
| Atrial fibrillation | 70/121 (57.9) | 62/104 (59.6) | 0.789 |
| Diabetes mellitus | 33/121 (27.3) | 24/98 (24.5) | 0.641 |
| Chronic obstructive airways disease | 12/121 (9.9) | 19/98 (19.4) | 0.046 |
| Chronic kidney disease | 26/121 (21.5) | 45/97 (46.4) | <0.001 |
| Cardiovascular accident | 9/73 (12.33) | 17/97 (17.5) | 0.351 |
| New York Heart Association functional class, mean ± SD | 2.8 ± 0.7 | 2.6 ± 0.5 | 0.031 |
| QRS duration, mean ± SD | 170.6 ± 27.8 | 181.9 ± 30.2 | 0.008 |
| Echocardiogram, mean ± SD | |||
| Left ventricular ejection fraction | 29.5 ± 8.6 | 30.0 ± 8.3 | 0.678 |
| Left ventricular end-diastolic volume | 186.2 ± 55.2 | 187.2 ± 90.3 | 0.246 |
| Left ventricular end-systolic volume | 129.8 ± 45.5 | 133.9 ± 75.7 | 0.499 |
CRT, cardiac resynchronization therapy; SD, standard deviation.
| Variable . | Coronary sinus CRT upgrade . | Endocardial CRT upgrade . | P-value . |
|---|---|---|---|
| Age, mean ± SD | 70.9 ± 11.7 | 69.1 ± 10.2 | 0.110 |
| Male, n/N (%) | 97/121 (80.2) | 82/104 (78.9) | 0.807 |
| Ischaemic cardiomyopathy, n/N (%) | 54/121 (44.6) | 40/104 (38.5) | 0.350 |
| Comorbidities, n/N (%) | |||
| Cardiac surgery | 20/121 (16.5) | 30/97 (30.9) | 0.012 |
| Hypertension | 42/121 (34.7) | 58/98 (59.2) | <0.001 |
| Atrial fibrillation | 70/121 (57.9) | 62/104 (59.6) | 0.789 |
| Diabetes mellitus | 33/121 (27.3) | 24/98 (24.5) | 0.641 |
| Chronic obstructive airways disease | 12/121 (9.9) | 19/98 (19.4) | 0.046 |
| Chronic kidney disease | 26/121 (21.5) | 45/97 (46.4) | <0.001 |
| Cardiovascular accident | 9/73 (12.33) | 17/97 (17.5) | 0.351 |
| New York Heart Association functional class, mean ± SD | 2.8 ± 0.7 | 2.6 ± 0.5 | 0.031 |
| QRS duration, mean ± SD | 170.6 ± 27.8 | 181.9 ± 30.2 | 0.008 |
| Echocardiogram, mean ± SD | |||
| Left ventricular ejection fraction | 29.5 ± 8.6 | 30.0 ± 8.3 | 0.678 |
| Left ventricular end-diastolic volume | 186.2 ± 55.2 | 187.2 ± 90.3 | 0.246 |
| Left ventricular end-systolic volume | 129.8 ± 45.5 | 133.9 ± 75.7 | 0.499 |
| Variable . | Coronary sinus CRT upgrade . | Endocardial CRT upgrade . | P-value . |
|---|---|---|---|
| Age, mean ± SD | 70.9 ± 11.7 | 69.1 ± 10.2 | 0.110 |
| Male, n/N (%) | 97/121 (80.2) | 82/104 (78.9) | 0.807 |
| Ischaemic cardiomyopathy, n/N (%) | 54/121 (44.6) | 40/104 (38.5) | 0.350 |
| Comorbidities, n/N (%) | |||
| Cardiac surgery | 20/121 (16.5) | 30/97 (30.9) | 0.012 |
| Hypertension | 42/121 (34.7) | 58/98 (59.2) | <0.001 |
| Atrial fibrillation | 70/121 (57.9) | 62/104 (59.6) | 0.789 |
| Diabetes mellitus | 33/121 (27.3) | 24/98 (24.5) | 0.641 |
| Chronic obstructive airways disease | 12/121 (9.9) | 19/98 (19.4) | 0.046 |
| Chronic kidney disease | 26/121 (21.5) | 45/97 (46.4) | <0.001 |
| Cardiovascular accident | 9/73 (12.33) | 17/97 (17.5) | 0.351 |
| New York Heart Association functional class, mean ± SD | 2.8 ± 0.7 | 2.6 ± 0.5 | 0.031 |
| QRS duration, mean ± SD | 170.6 ± 27.8 | 181.9 ± 30.2 | 0.008 |
| Echocardiogram, mean ± SD | |||
| Left ventricular ejection fraction | 29.5 ± 8.6 | 30.0 ± 8.3 | 0.678 |
| Left ventricular end-diastolic volume | 186.2 ± 55.2 | 187.2 ± 90.3 | 0.246 |
| Left ventricular end-systolic volume | 129.8 ± 45.5 | 133.9 ± 75.7 | 0.499 |
CRT, cardiac resynchronization therapy; SD, standard deviation.
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