Optimum pacingmodeforpatients withangina pectoris

Optimumpacing modeforpatients with anginapectorismumeffort tolerance andheartrate at rest andpeakexercise. To compare these variables in differentpacing modes weused Friedman's analysis ofvari-ance and an unpaired t test. Symptoms wereexpressed as number of attacks per week for eachmonthandsymptomscores werecomparedbyWil-coxon's ranked pairs test. Symptom variancebetween pacing modes was assessed by the Mann-WhitneyUtest. Resultsareexpressedasmean(SD)except maximum exercise capacity which isexpressed as mean(SE).ResultsTen patients entered the study; eight completedthreeonemonthstudyperiods; in twoseveresymp-toms developed in the VVI mode and they wereunable