VOOR--nondemand rate modulated pacing necessitated by myopotential inhibition.

This report describes the use of the temperature sensitive rate modulated nondemand pacing mode (VOOR) in a patient with significant myopotential inhibition of pacemaker output during exercise. The VOOR mode eliminated myopotential sensing which had prevented an exertion related increase in heart rate. The patient has done well with VOOR pacing for the past year. VOOR pacing is useful in selected cases.