Atrioventricular Block, Left Bundle Branch Pacing
Conditions
Brief summary
Patients with successful left bundle branch pacing in our center were included in this study from April 2018 to December 2019. Baseline data was collected, and pacing parameters, ECG and echocardiographic results were analyzed during 3 years follow-up. According to whether or not a potential was recorded and the specific potential characteristics at implantation, the patients were divided into 3 groups: left bundle branch potential group; Purkinje potential group; and no-potential group. During the 3 years follow-up, the investigators collected the ECG、UCG and pacemaker parameters to analyze.
Detailed description
A total of 136 patients with a high percentage of ventricular pacing and successful left bundle branch pacing were included in this study from April 2018 to December 2019. Baseline data was collected, and pacing parameters, ECG and echocardiographic results were analyzed during 3 years follow-up. According to whether or not a potential was recorded and the specific potential characteristics at implantation, the patients were divided into 3 groups: left bundle branch potential group (L group) 31.6%; Purkinje potential group (P group) 10.3%; and no-potential group (N group) 58.1%. During the 3 years follow-up, the investigators collected the ECG、UCG and pacemaker parameters to analyze.
Interventions
DEVICECardiac pacemaker and Select Secure lead
model 3830, 69cm, Medtronic, Inc., Minneapolis, MN, USA
Sponsors
Linyi People's Hospital
Study design
Observational model
COHORT
Time perspective
PROSPECTIVE
Eligibility
Sex/Gender
ALL
Age
21 Years to 90 Years
Healthy volunteers
No
Inclusion criteria
* Patients who were predicted to require a high percentage of ventricular pacing in our center were enrolled in this study
Exclusion criteria
* Low rate of pacing, and loss to follow-up
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Change from Baseline in left atrium diameter at 3 years | Baseline and 3 years | Echocardiography is measured by a professional using an ultrasound machine, record the following results: left atrium diameter (ms) |
| Change from Baseline in left ventricular end diastolic diameter at 3 years | Baseline and 3 years | Left ventricular end diastolic diameter (ms) |
| Change from Baseline in left ventricular ejection fraction at 3 years | Baseline and 3 years | Left ventricular ejection fraction (%) |
| Change from Baseline in pulmonary artery systolic pressure at 3 years | Baseline and 3 years | Pulmonary artery systolic pressure (mmHg) |
Secondary
| Measure | Time frame | Description |
|---|---|---|
| Change from Baseline in threshold at 3 years | Baseline and 3 years | Threshold was measured with a pace-sensing analyser: threshold (V) at 0.5ms |
| Change from Baseline in impedance at 3 years | Baseline and 3 years | Impedance was measured with a pace-sensing analyser: impedance(Ω) |
Countries
China
Outcome results
None listed