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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