Cardiac Resynchronization Therapy, Chronic Heart Failure, Left Bundle-Branch Block
Conditions
Keywords
Non-invasive activation mapping, Coronary Sinus
Brief summary
The objective of this prospective, multicenter controlled study is to assess the feasibility of a patient-tailored implantation by creating a cloud-based pre-procedural multimodality CRT-roadmap by integration of 3D images from 3D activation sequence from ECG, and coronary venous anatomy from cardiac computed tomography. This CRT-roadmap will be used to guide LV lead placement to a coronary vein in an electrically late-activated region. Study Hypothesis: At least 75% of patients undergoing a CRT implantation guided by non-invasive electrical and venous anatomy assessment (XSPLINE technology) will show a reduction of left ventricular end-systolic volume of 15% or more at 6-month evaluation.
Interventions
DEVICECRT implantation guided by XSpline, a non-invasive electrical and venous anatomy assessment
The following information and data will be obtained from the routine clinical work up of the patients: Patient demographics, cardiovascular medical history, and clinical examination; 12-lead ECG; Standard echocardiography; Computed tomography angiography for visualization of atria, ventricle, and coronary sinus. Imaging data will be transferred to the cloud-based web-platform using a dedicated software provided by study sponsor. Data processing includes evaluating the quality of the data and calculation of various anatomical and electrical parameters, and identification of the target zone as a point in the target vein closest to the latest activation zone. LV-lead location is based on the information provided by the dedicated software followed by visual X-ray based verification of anatomically suitable/most desirable position. The patient will undergo CRT device implantation according to local protocols.
Sponsors
XSpline S.p.A.
Study design
Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
DIAGNOSTIC
Masking
NONE
Intervention model description
The investigation will include 9 European and 4 US investigational sites. The goal is to enroll a total number of 150 patients. It is expected about 1.5 patients per site per month over a period of maximum 8 months after site opening. The study duration is set at 12-month, 6 months for patient enrollment and 6 months of follow-up.
Eligibility
Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No
Inclusion criteria
Eligible subjects shall meet all following criteria: * Appropriately signed and dated informed consent. * Age ≥18 years at time of consent. * CRT indication according to the 2021 ESC guidelines on cardiac pacing and CRT (class I and IIA indication in patients with LBBB QRS morphology) or to 2017 AHA/ACC/HFSA guidelines (COR I). * Sinus rhythm * QRS duration ≥130 ms * Left bundle branch block * Left ventricular ejection fraction ≤35% * Symptomatic heart failure NYHA class ≥ II * Documented stable medical treatment for at least 6 months * No cardiovascular intervention during the last 6 month
Exclusion criteria
are: * History of persistent or permanent atrial fibrillation * Previous pacemaker or ICD implantation * Indication to pacing due to bradycardia * Patients considered for His bundle pacing or cardiac conduction pacing * Patients with unstable angina * Subject experienced a recent myocardial infarction, within 40 days prior to enrollment * Subject underwent coronary artery bypass graft or valve surgery, within 90 days prior to enrollment * Subject is post heart transplantation, or is actively listed on the transplantation list, or has reasonable probability (per investigator's discretion) of undergoing transplantation in the next year * Subject is implanted with a left ventricular assist device * Subject is on continuous or uninterrupted infusion (inotropic) therapy for heart failure * Subject has severe aortic stenosis (with a valve area of \<1.0 cm2 or significant valve disease expected to be operated within study period) * Subject has congenital heart disease * Subject has a mechanical right-sided heart valve * Subject has a life expectancy of less than one year in the opinion of the investigator * Pregnant or breastfeeding women, or women of child bearing potential and who are not on a reliable form of birth control * Subject is enrolled in one or more concurrent studies that would confound the results of this study * Patients who have contraindications to CT scanning. * Patients with chronic kidney diseases and estimated glomerular filtration rate (eGMR) calculated based on CKD-EPI 2009 \< 40 ml/min/1.73m2
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Reduction of left ventricular end-systolic volume of at least 15% in 75% of CRT treated patients | 6 months follow-up | Increase in efficacy of CRT using XSpline technology assessed by reduction of left ventricular end-systolic volume of at least 15% at 6-month follow-up in 75% of CRT treated patients, based on routine echo-cardiographic measurements |
Secondary
| Measure | Time frame | Description |
|---|---|---|
| Feasibility of systematic use of XSpline platform for CRT implantation | 6 months follow-up | Feasibility of systematic use of automatic cloud-based, AI-based XSpline technology through statistics on software performance (e.g. percentage of core tasks completed higher than defined thresholds) |
| CRT procedural time difference | 6 months follow-up | Evaluate the change in CRT procedural time by comparing with standard approach as found in literature, time in minutes |
| Total X-ray exposure time difference | 6 months follow-up | Evaluate the change in total X-ray exposure time by comparing with standard approach as found in literature, time in minutes |
Countries
Austria, Hungary, Italy, Netherlands, Spain, Switzerland, United States
Contacts
Primary ContactClaudia M Amatruda, PhD
Outcome results
None listed