Acoustic Cardiographic Assessment of Heart Function and the Role of Phrenic Nerve Stimulation Following Open Heart Surgery
Overview
- Phase
- N/A
- Intervention
- Not specified
- Conditions
- Heart Failure, Congestive
- Sponsor
- Luzerner Kantonsspital
- Locations
- 1
- Primary Endpoint
- Change of electrical mechanical activation time (EMAT) as measure of heart function on different settings of pacing
- Status
- Completed
- Last Updated
- 13 years ago
Overview
Brief Summary
In this study, the investigators sought to determine whether a stimulation of the phrenic nerve affects heart function. Heart function is assessed by acoustic cardiography.
Detailed Description
Patients who need temporary pacing following open heart surgery and who are willing to participate receive a phrenic nerve electrode during the operation. Heart function is postoperatively assessed by acoustic cardiography (Audicor, Inovise Medical Inc., Portland, USA) during different forms of pacing (right ventricle, left ventricle, biventricular; AAI, DDD) and with or without phrenic nerve stimulation. Acoustic cardiography simultaneously integrates heart sounds and single-channel electrocardiography input to generate multiple parameters that correlate to established hemodynamic measures. Effects of phrenic nerve stimulation on heart function will be analyzed.
Investigators
Prof. Paul Erne
Prof. Paul Erne
Luzerner Kantonsspital
Eligibility Criteria
Inclusion Criteria
- •Patients following open heart surgery who need temporary pacing
Exclusion Criteria
- •Patients with permanent pacemakers
- •Patients with fast changing need of vasopressor therapy
Outcomes
Primary Outcomes
Change of electrical mechanical activation time (EMAT) as measure of heart function on different settings of pacing
Time Frame: One day