Correlating QLV Interval to Left Ventricular (LV) Lead Position in Patients Receiving Cardiac Resynchronization Therapy.
QLV
Mapping of the Coronary Venous System in Patients With Heart Failure Presenting for CRT-D (Cardiac Resynchronization Therapy) Implantation. Correlating QLV Interval to Fluoroscopic LV (Left Ventricular) Lead Position.
1 other identifier
interventional
20
1 country
1
Brief Summary
This is a prospective clinical trial to determine the optimal QLV interval during implantation to achieve the best possible response from cardiac resynchronization therapy for heart failure patients.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at below P25 for not_applicable heart-failure
Started May 2013
1 active site
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
Click on a node to explore related trials.
Study Timeline
Key milestones and dates
Study Start
First participant enrolled
May 1, 2013
CompletedFirst Submitted
Initial submission to the registry
June 16, 2014
CompletedFirst Posted
Study publicly available on registry
June 18, 2014
CompletedPrimary Completion
Last participant's last visit for primary outcome
September 1, 2014
CompletedStudy Completion
Last participant's last visit for all outcomes
September 1, 2015
CompletedJune 7, 2019
June 1, 2019
1.3 years
June 16, 2014
June 6, 2019
Conditions
Keywords
Outcome Measures
Primary Outcomes (1)
QLV measurement
Measurements of the QLV interval is defined from the onset of the QRS width of the surface ECG to the first large positive or negative peak of the LV electrogram (EGM) during a cardiac cycle.
15 minutes
Study Arms (1)
QLV interval measurement
EXPERIMENTALQLV measurements collected during implantation of CRT-D device
Interventions
Measurements of the QLV interval is defined from the onset of the QRS width of the surface ECG to the first large positive or negative peak of the LV EGM during a cardiac cycle. Recorded EGM's will be measured at three distinct points (basal, mid, and distal) within each target vessel.
Eligibility Criteria
You may qualify if:
- Patients who are indicated for CRT-D devices according to the current guidelines for implantation of cardiac pacemakers and antiarrhythmia devices
You may not qualify if:
- Patients who are under the age of 18
- Patients who are pregnant
- Patients who cannot have intravenous contrast due to allergic reactions or chronic renal insufficiency
- Patients who are unable or unwilling for any reason to consent for this study
Contact the study team to confirm eligibility.
Sponsors & Collaborators
- University of California, San Diegolead
- Boston Scientific Corporationcollaborator
Study Sites (1)
UCSD Sulpizio Cardiovascular Center
La Jolla, California, 92093, United States
Related Publications (10)
McAlister FA, Ezekowitz J, Hooton N, Vandermeer B, Spooner C, Dryden DM, Page RL, Hlatky MA, Rowe BH. Cardiac resynchronization therapy for patients with left ventricular systolic dysfunction: a systematic review. JAMA. 2007 Jun 13;297(22):2502-14. doi: 10.1001/jama.297.22.2502.
PMID: 17565085BACKGROUNDEpstein AE, Dimarco JP, Ellenbogen KA, Estes NA 3rd, Freedman RA, Gettes LS, Gillinov AM, Gregoratos G, Hammill SC, Hayes DL, Hlatky MA, Newby LK, Page RL, Schoenfeld MH, Silka MJ, Stevenson LW, Sweeney MO; American College of Cardiology/American Heart Association Task Force on Practice; American Association for Thoracic Surgery; Society of Thoracic Surgeons. ACC/AHA/HRS 2008 guidelines for Device-Based Therapy of Cardiac Rhythm Abnormalities: executive summary. Heart Rhythm. 2008 Jun;5(6):934-55. doi: 10.1016/j.hrthm.2008.04.015. Epub 2008 May 19. No abstract available.
PMID: 18534377BACKGROUNDFeldman AM, de Lissovoy G, Bristow MR, Saxon LA, De Marco T, Kass DA, Boehmer J, Singh S, Whellan DJ, Carson P, Boscoe A, Baker TM, Gunderman MR. Cost effectiveness of cardiac resynchronization therapy in the Comparison of Medical Therapy, Pacing, and Defibrillation in Heart Failure (COMPANION) trial. J Am Coll Cardiol. 2005 Dec 20;46(12):2311-21. doi: 10.1016/j.jacc.2005.08.033.
PMID: 16360064BACKGROUNDSingh JP, Klein HU, Huang DT, Reek S, Kuniss M, Quesada A, Barsheshet A, Cannom D, Goldenberg I, McNitt S, Daubert JP, Zareba W, Moss AJ. Left ventricular lead position and clinical outcome in the multicenter automatic defibrillator implantation trial-cardiac resynchronization therapy (MADIT-CRT) trial. Circulation. 2011 Mar 22;123(11):1159-66. doi: 10.1161/CIRCULATIONAHA.110.000646. Epub 2011 Mar 7.
PMID: 21382893BACKGROUNDChung ES, Leon AR, Tavazzi L, Sun JP, Nihoyannopoulos P, Merlino J, Abraham WT, Ghio S, Leclercq C, Bax JJ, Yu CM, Gorcsan J 3rd, St John Sutton M, De Sutter J, Murillo J. Results of the Predictors of Response to CRT (PROSPECT) trial. Circulation. 2008 May 20;117(20):2608-16. doi: 10.1161/CIRCULATIONAHA.107.743120. Epub 2008 May 5.
PMID: 18458170BACKGROUNDButter C, Auricchio A, Stellbrink C, Fleck E, Ding J, Yu Y, Huvelle E, Spinelli J; Pacing Therapy for Chronic Heart Failure II Study Group. Effect of resynchronization therapy stimulation site on the systolic function of heart failure patients. Circulation. 2001 Dec 18;104(25):3026-9. doi: 10.1161/hc5001.102229.
PMID: 11748094BACKGROUNDSingh JP, Fan D, Heist EK, Alabiad CR, Taub C, Reddy V, Mansour M, Picard MH, Ruskin JN, Mela T. Left ventricular lead electrical delay predicts response to cardiac resynchronization therapy. Heart Rhythm. 2006 Nov;3(11):1285-92. doi: 10.1016/j.hrthm.2006.07.034. Epub 2006 Aug 10.
PMID: 17074633BACKGROUNDGold MR, Niazi I, Giudici M, Leman RB, Sturdivant JL, Kim MH, Yu Y, Ding J, Waggoner AD. A prospective comparison of AV delay programming methods for hemodynamic optimization during cardiac resynchronization therapy. J Cardiovasc Electrophysiol. 2007 May;18(5):490-6. doi: 10.1111/j.1540-8167.2007.00770.x. Epub 2007 Feb 21.
PMID: 17313533BACKGROUNDKhan FZ, Virdee MS, Palmer CR, Pugh PJ, O'Halloran D, Elsik M, Read PA, Begley D, Fynn SP, Dutka DP. Targeted left ventricular lead placement to guide cardiac resynchronization therapy: the TARGET study: a randomized, controlled trial. J Am Coll Cardiol. 2012 Apr 24;59(17):1509-18. doi: 10.1016/j.jacc.2011.12.030. Epub 2012 Mar 7.
PMID: 22405632BACKGROUNDEllenbogen KA, Gold MR, Meyer TE, Fernndez Lozano I, Mittal S, Waggoner AD, Lemke B, Singh JP, Spinale FG, Van Eyk JE, Whitehill J, Weiner S, Bedi M, Rapkin J, Stein KM. Primary results from the SmartDelay determined AV optimization: a comparison to other AV delay methods used in cardiac resynchronization therapy (SMART-AV) trial: a randomized trial comparing empirical, echocardiography-guided, and algorithmic atrioventricular delay programming in cardiac resynchronization therapy. Circulation. 2010 Dec 21;122(25):2660-8. doi: 10.1161/CIRCULATIONAHA.110.992552. Epub 2010 Nov 15.
PMID: 21098426BACKGROUND
MeSH Terms
Conditions
Condition Hierarchy (Ancestors)
Study Officials
- PRINCIPAL INVESTIGATOR
Ulrika Birgersdotter-Green, MD
UCSD Electrophysiology
Study Design
- Study Type
- interventional
- Phase
- not applicable
- Allocation
- NA
- Masking
- NONE
- Purpose
- TREATMENT
- Intervention Model
- SINGLE GROUP
- Sponsor Type
- OTHER
- Responsible Party
- PRINCIPAL INVESTIGATOR
- PI Title
- Professor of Medicine
Study Record Dates
First Submitted
June 16, 2014
First Posted
June 18, 2014
Study Start
May 1, 2013
Primary Completion
September 1, 2014
Study Completion
September 1, 2015
Last Updated
June 7, 2019
Record last verified: 2019-06