Study of the Loss of AV Synchrony at Maximum Exercise

SLAVSME - Study of the Loss of AV Synchrony at Maximum Exercise

Investigators will identify a group of patients with complete heart block and a dual chamber pacemaker who will be expected to be able to exercise on a treadmill. Investigators will utilize symptom logs, cuff and continuous blood pressure monitoring. It is planned to study the symptomatic impact of loss of AV synchrony at significant levels of exercise.

Inclusion Criteria:

• Complete AV Block
• Age less than 60
• Easily programmable dual chamber pacemaker

Exclusion Criteria:

• Age > 60
• Significant Heart Failure
• Significant angina
• History of claudication
• Significant orthopedic issues
• Evidence of sinus node dysfunction
• Taking beta blockers or non-dihydropyridine calcium channel blockers