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Table 1 Characteristics of the study patients

From: Cardiac reflections and natural vibrations: Force-frequency relation recording system in the stress echo lab

  EXERCISE DIP PACING
PT n° 49 31 8
Age (years) 58 ± 13 66 ± 11 71 ± 10
Males 33 17 6
Controls 9 0 0
Previous PTCA/By pass 15 15 2
Previous myocardial infarction 12 8 2
Arterial hypertension 27 17 5
Atypical chest pain/miscellaneous 13 10 4
BB on 21 17 5
ACEi on 11 10 5
Ca CB on 11 8 1
  1. ACEi = angiotensin converting enzyme inhibitors; BB = beta blockers; Ca CB = calcium channel blockers