Status:
WITHDRAWN
Short Atrioventricular Delay Pacing
Lead Sponsor:
University of Pittsburgh
Conditions:
Chronically (i.e. Implanted for at Least Six Months) Dual-chamber Pacemaker
Stable Cardiac Status (i.e. no Hospitalizations or Cardiac Medication Changes Within 3 Months)
Eligibility:
All Genders
18-80 years
Phase:
NA
Brief Summary
We intend to examine the effects of temporary elevation of atrial wall stress by shortening of the atrioventricular delay in patients with dual-chamber pacemakers.
Eligibility Criteria
Inclusion
- Chronically (i.e. implanted for at least six months) dual-chamber pacemaker
- Stable cardiac status (i.e. no hospitalizations or cardiac medication changes within 3 months)
- Ability to provide informed consent
Exclusion
- Age \<18 years or \>80 years
- Pregnancy (if pregnancy is suspected, a urine pregnancy test will be performed)
- Recent (within 12 months) left ventricular ejection fraction \<50%
- Significant valvular heart disease (mitral regurgitation of greater than mild severity, any degree of mitral stenosis, aortic stenosis or insufficiency of greater than mild severity)
- Prior coronary artery bypass graft or valve surgery, recent (i.e. within 3 months) acute coronary syndrome or percutaneous coronary intervention, or chronic stable angina
- History of clinically important atrial or ventricular tachyarrhythmias, defined as complex ventricular ectopy (i.e. couplets, triplets, or ventricular tachycardia), AF, atrial tachycardia, or other supraventricular tachycardias not cured with prior ablative therapy).
- Significant chronic systemic inflammatory or neoplastic disease
- Chronic renal or hepatic insufficiency. Renal insufficiency will be defined as a creatinine clearance of less than 20 cc/min. Evidence of hepatic insufficiency will consist of abnormal synthetic function (INR \>1.4 without oral anticoagulant use, albumin \< 3.0 mg/dL) or abnormal clearance function (total bilirubin \>2.0).
- Uncorrected thyroid abnormalities
Key Trial Info
Start Date :
January 1 2011
Trial Type :
INTERVENTIONAL
Allocation :
ACTUAL
End Date :
January 1 2011
Estimated Enrollment :
Patients enrolled
Trial Details
Trial ID
NCT01233661
Start Date
January 1 2011
End Date
January 1 2011
Last Update
March 22 2023
Active Locations (1)
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1
Atrial Arrhythmia Center, UPMC
Pittsburgh, Pennsylvania, United States, 15213