Research Article

Peripheral Artery Tonometry Reveals Impaired Endothelial Function before Percutaneous Coronary Intervention in Patients with Periprocedural Myocardial Injury

Table 1

Demographics and clinical characteristics.

Total (268)RHI > 1.81 (131)RHI ≤ 1.81 (137)

Age62.9 ± 9.063.2 ± 8.862.6 ± 9.30.654
Male185 (69.0)87 (66.4)98 (71.5)0.365
Hypertension170 (63.4)80 (61.1)90 (65.7)0.432
Diabetes60 (22.3)28 (21.4)32 (23.4)0.697
Smoking history95 (35.4)42 (32.1)53 (38.7)0.257
BMI24.7 ± 3.024.5 ± 3.224.9 ± 2.80.228
CAD189 (70.5)87 (66.4)102 (74.5)0.149
Syntax score14.9 ± 8.012.0 ± 6.617.3 ± 8.3<0.001
Coronary slow flow11 (4.1)4 (3.1)7 (5.1)0.396

Laboratory and auxiliary examinations
Systolic blood pressure (mmHg)132.4 ± 12.3131.6 ± 12.2133.2 ± 12.40.592
Diastolic blood pressure (mmHg)80.0 ± 8.279.0 ± 8.481.0 ± 8.00.100
NT-proBNP (pg/ml)214.2 ± 536.7215.1 ± 523.9213.0 ± 550.60.461
Creatinine (mg/dl)78.2 ± 16.976.8 ± 17.379.5 ± 16.60.187
CK (U/L)94.4 ± 47.694.0 ± 50.894.8 ± 44.40.317
CK-MB (U/L)12.9 ± 8.213.0 ± 10.212.7 ± 5.20.941
hs-CRP (mg/L)3.94 ± 7.273.55 ± 7.174.35 ± 7.400.096
Hemoglobin (g/L)134.4 ± 14.5132.9 ± 13.9135.9 ± 14.80.091
Platelet (×10^9/L)207.5 ± 64.2205.9 ± 62.1209.0 ± 66.40.827
Total cholesterol (mmol/L)3.82 ± 0.973.73 ± 0.863.91 ± 1.070.252
Low-density lipoprotein (mmol/L)1.97 ± 0.811.94 ± 0.741.99 ± 0.870.892
Triglyceride (mmol/L)1.77 ± 1.401.59 ± 0.961.94 ± 1.710.038
High-density lipoprotein (mmol/L)1.14 ± 0.461.15 ± 0.571.13 ± 0.330.938
Lp (a) (mmol/L)349.6 ± 485.8351.8 ± 468.7347.5 ± 503.50.370
HbA1c (%)6.2 ± 1.46.1 ± 1.26.3 ± 1.50.111

Echocardiography
LA (mm)38.9 ± 4.338.1 ± 4.439.5 ± 0.40.010
LVEDD (mm)47.1 ± 4.546.5 ± 4.247.6 ± 4.80.050
LVESD (mm)30.3 ± 4.330.0 ± 3.730.8 ± 4.80.090
SPAP (mmHg)32.4 ± 6.332.7 ± 7.032.1 ± 5.70.784
EF (%)64.4 ± 7.064.3 ± 7.364.5 ± 6.60.906

Medication
Statin237 (88.4)113 (86.3)124 (90.5)0.277
Β-blockade175 (65.2)86 (65.6)89 (65.0)0.906
Nitrates132 (49.3)59 (45.0)73 (53.3)0.177
Calcium channel blockade68 (25.4)35 (26.7)33 (24.1)0.621

Data are shown as mean ± SD or n (%). Slow flow was defined as a reduced thrombolysis in a myocardial infarction (TIMI) flow grade of 2 or lower in coronary angiography. BMI, body mass index; CAD, coronary artery disease; hs-CRP, hypersensitive C-reactive protein; EF, ejection fraction; LA, left atrium; LVEDD, left ventricular end-diastolic diameter; LVESD, left ventricular end-systolic diameter; Lp (a), lipoprotein (a); PMI, periprocedural myocardial injury; SPAP, systolic pulmonary arterial pressure.