Dependence of LV Hemodynamics on Pacing Site

This study is currently recruiting participants. (see Contacts and Locations)
Verified October 2014 by St. Jude Medical
Information provided by (Responsible Party):
St. Jude Medical Identifier:
First received: March 24, 2012
Last updated: October 13, 2014
Last verified: October 2014

The purpose of this study is to evaluate the effects of epicardial and endocardial pacing at each side of the left ventricular (LV) segments on cardiac hemodynamics in patients with impaired LV function undergoing epicardial ablation and mapping procedure. Hemodynamic function will be assessed during a pacing protocol with a pressure catheter inserted in the LV.

Heart Failure

Study Type: Observational
Study Design: Observational Model: Case-Only
Time Perspective: Cross-Sectional
Official Title: Characterization of LV Hemodynamics During Epicardial and Endocardial Pacing

Further study details as provided by St. Jude Medical:

Primary Outcome Measures:
  • Invasive Dp/dt Max [ Time Frame: Acute E.P. Procedure ] [ Designated as safety issue: No ]
    Variation on invasive Dp/dt max during dedicated pacing site

Estimated Enrollment: 40
Study Start Date: June 2012
Estimated Study Completion Date: May 2015
Estimated Primary Completion Date: May 2015 (Final data collection date for primary outcome measure)
VT Ablation
Patients undergoing epicardial mapping and ablation procedure for a ventricular tachycardia


Ages Eligible for Study:   18 Years and older
Genders Eligible for Study:   Both
Accepts Healthy Volunteers:   No
Sampling Method:   Non-Probability Sample
Study Population

Patients indicated for epicardial mapping and ablation of arrhythmia(s) utilizing a transcutaneous subxiphoid approach


Inclusion Criteria:

  • Patient is already indicated for epicardial mapping and ablation of arrhythmia(s) utilizing a transcutaneous subxiphoid approach
  • Be in sinus rhythm
  • Have LVEF < 40%
  • Have the ability to provide informed consent for study participation and be willing and able to comply with the CIP (Clinical Investigational Plan) described evaluations

Exclusion Criteria:

  • Have permanent AF
  • Have pericardial disease
  • Have a recent myocardial infarction within 40 days prior to enrollment
  • Have undergone cardiac surgery or coronary revascularization procedure within 3 months prior to enrollment or be scheduled for such procedures
  • Have had a recent CVA or TIA within 3 months prior to enrollment
  • Be less than 18 years of age
  • Be pregnant
  Contacts and Locations
Choosing to participate in a study is an important personal decision. Talk with your doctor and family members or friends about deciding to join a study. To learn more about this study, you or your doctor may contact the study research staff using the Contacts provided below. For general information, see Learn About Clinical Studies.

Please refer to this study by its identifier: NCT01564173

CHU Recruiting
Bordeaux, France
Contact: Pierre Jais    05 57 65 64 71   
Sponsors and Collaborators
St. Jude Medical
Principal Investigator: Pierre Jais, MD University Hospital, Bordeaux
  More Information

No publications provided

Responsible Party: St. Jude Medical Identifier: NCT01564173     History of Changes
Other Study ID Numbers: 644
Study First Received: March 24, 2012
Last Updated: October 13, 2014
Health Authority: France: Committee for the Protection of Personnes processed this record on March 26, 2015