Skip to main content

Table 1 Baseline and CMR characteristics

From: Impact of caffeine on myocardial perfusion reserve assessed by semiquantitative adenosine stress perfusion cardiovascular magnetic resonance

  Study cohort n = 25
General
 Age, years 69 (62–75)
 Male sex, n (%) 21 (84)
 Hypertension, n (%) 20 (80)
 Diabetes mellitus, n (%) 9 (36)
 Family history of CAD, n (%) 11 (44)
 Current smoking, n (%) 2 (8)
Symptoms
 None 2 (8)
 Angina 14 (56)
 Typical angina 12 (48)
 CCS 1
 CCS 2 7 (28)
 CCS 3 and 4 5 (20)
 Atypical angina 2 (8)
 Dyspnea 9 (36)
 NYHA I
 NYHA II 8 (32)
 NYHA III/IV 1 (4)
 Known CAD 12 (48)
Caffeine consumption and serum levels
 Coffee, cups 3 (2–4)
 Tea, cups 4 (2–4)
 Caffeine level baseline CMR, mg/L < 1
 Caffeine level follow-up CMR, mg/L 4.6 ± 2.3
CMR routine parameters
 LVEF, % 64 ± 6
 LVEDVi, mL/m2 130 ± 32
 LVESVi, mL/m2 49 ± 19
 IVS thickness, mm 13 ± 3
 LA, cm2 21 ± 4
 Ischemic segments (16-segments model) 7.4 ± 3.2
 Days between baseline and follow-up CMR 12 (3–14)
  1. Data are n (%), mean ± SD or median (IQR)
  2. CAD, coronary artery disease; CCS, Canadian Cardiovascular Society class; NYHA, New York Heart Association class; CMR, cardiac magnetic resonance imaging; LVEF, left ventricular ejection fraction; LVEDVi, left ventricular end-diastolic volume index; LVESVi, left ventricular end-systolic volume index; IVS, interventricular septum; LA, left atrium