Factors contributing to exercise tolerance in patients with coronary artery disease undergoing percutaneous coronary intervention

Table 2 Comparison of clinical indicators

Variables	All patients (n = 299)	Exercise tolerance (n = 226)	Exercise intolerance (n = 73)	p-value
Transthoracic echocardiography
LAD (mm)	34.46 ± 4.31	33.79 ± 4.05	36.55 ± 4.46	< 0.001
LVDd (mm)	45.12 ± 6.11	44.96 ± 5.71	45.60 ± 7.24	0.436
LVDs (mm)	29.73 ± 4.68	29.63 ± 4.07	30.04 ± 6.21	0.518
IVST (mm)	10.75 ± 3.38	10.77 ± 3.81	10.67 ± 1.34	0.821
LVEF (%)	63.77 ± 6.52	63.70 ± 6.27	63.98 ± 7.26	0.754
EDV (ml)	98.16 ± 26.53	95.04 ± 23.14	107.80 ± 33.35	< 0.001
FS (%)	34.94 ± 4.84	35.07 ± 4.63	34.54 ± 5.44	0.414
Blood biochemistry
Hemoglobin (g/l)	138.10 ± 14.13	139.87 ± 13.77	132.64 ± 13.94	< 0.001
Platelet (× 10⁹/l)	209.07 ± 60.23	206.27 ± 53.12	217.81 ± 77.87	0.155
Homocysteine (μmol/l)	13.82 ± 4.48	13.88 ± 4.15	13.62 ± 5.41	0.666
Scr (umol/l)	65.11 ± 16.22	65.34 ± 14.69	64.41 ± 20.35	0.673
UA (umol/l)	351.42 ± 93.44	356.51 ± 91.53	335.67 ± 98.11	0.098
TC (mmol/l)	3.91 ± 1.06	3.95 ± 1.04	3.77 ± 1.13	0.192
TG (mmol/l)	1.92 ± 1.64	1.95 ± 1.76	1.84 ± 1.19	0.615
HDL-C (mmol/l)	1.07 ± 0.26	1.08 ± 0.26	1.03 ± 0.26	0.160
LDL-C (mmol/l)	2.31 ± 0.93	2.33 ± 0.92	2.25 ± 0.96	0.545

LAD Left atrial diameter, LVDd Left ventricular diastolic diameter, LVDs Left ventricular systolic diameter, IVST Thickness of the interventricular septum, LVEF Left ventricular ejection fraction, EDV End-diastolic volume, FS Fractional shortening, Scr Serum creatinine, UA Uric acid, TC Total cholesterol, TG Triglyceride concentrations, HDL-C High-density lipoprotein cholesterol, LDL-C Low-density lipoprotein cholesterol

ISSN: 2052-1847