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Slow recruitment since the advent of left bundle branch area pacing
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This study will randomize cross-over periods of 6 months of right ventricular pacing and His bundle pacing in patients with baseline left ventricular ejection fraction (LVEF)>40%. The primary outcome measure is LVEF.
Monocentric, randomized, double-blind comparative crossover clinical study.
Patients with a standard pacing indication with >20% ventricular pacing, with a baseline LVEF >40%, implanted with a functioning His bundle lead and a backup right ventricular lead, will be randomized to 6-months periods of right ventricular pacing and of His bundle pacing. The primary outcome is LVEF assessed by gated Equilibrium Radionuclide Angiography. Secondary outcomes are diastolic function, New York Heart Association (NYHA) functional class, quality of life, 6-minute walk test, heart failure hospitalisations and device electrical parameters.
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| Label | Type | Description | Intervention Names |
|---|---|---|---|
| His bundle pacing | Active Comparator | Pacing programmed from the His bundle lead |
|
| Right ventricular pacing | Placebo Comparator | Pacing programmed from the right ventricular lead |
|
| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| His bundle pacing | Device | Pacing with capture of the His bundle |
| |
| Measure | Description | Time Frame |
|---|---|---|
| Left ventricular ejection fraction | Assessed by gated Equilibrium Radionuclide Angiography | 6 months |
| Measure | Description | Time Frame |
|---|---|---|
| Left ventricular peak filling rate (EDV/s) | Assessed by gated Equilibrium Radionuclide Angiography | 6 months |
| NYHA functional class | Investigator evaluation |
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Inclusion Criteria:
Exclusion Criteria:
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| Name | Affiliation | Role |
|---|---|---|
| Haran Burri, MD | University Hospital, Geneva | Principal Investigator |
| Facility | Status | City | State | ZIP | Country | Contacts |
|---|---|---|---|---|---|---|
| University Hospital Geneva | Geneva | Canton of Geneva | 1211 | Switzerland |
Yareta data repository
At the ocmpletion of the study
Open access for at least 15 years (as per Swiss law)
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Randomized crossover double-blind
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| Right ventricular pacing |
| Device |
Pacing from the right ventricular lead (septal or apical) |
|
| 6 months |
| 6-minute walk test | Investigator evaluation | 6 months |
| Quality of life measure by SF-36 questionnaire | SF-36 questionnaire; 0-100 score (the higher the score, the better the quality of life) | 6 months |
| Right ventricular ejection fraction | Assessed by gated Equilibrium Radionuclide Angiography | 6 months |
| Hospital admission for cardiovascular causes | Number of days of admissions for cardiovascular causes | 6 months |
| Hospital admission for cardiovascular causes | Duration in days of admissions for cardiovascular causes | up to 6 months |