Effects of Obstructive Sleep Apnea on Cardiac Function and Clinical Outcomes in Chinese Patients with ST-Elevation Myocardial Infarction

Table 3

Cardiac structure and function in the study population.

	OSA group (𝑛=89)	Non-OSA group (𝑛=109)	𝑃 value
Cardiac structure
LVM (g)	144 ± 25	133 ± 34	0.012
IVS (cm)	0.91 ± 0.17	0.85 ± 0.14	0.015
PWT (cm)	0.85 ± 0.11	0.82 ± 0.13	0.045
LAD (cm)	3.45 ± 5.35	3.53 ± 4.98	0.268
LVDd (cm)	4.78 ± 0.45	4.77 ± 0.49	0.857
LVDs (cm)	2.95 ± 4.90	2.94 ± 4.98	0.966
WMA (%, 𝑛)	67.4 (60)	64.2 (70)	0.375
Cardiac function
LVEF (%)	60.7 ± 13.4	64.4 ± 11.4	0.038
Peak 𝐸 (cm/s)	74.2 ± 17.3	72.1 ± 26.5	0.516
Peak 𝐴 (cm/s)	75.4 ± 15.0	64.6 ± 21.4	<0.001
DT (s)	2.04 ± 0.18	1.97 ± 0.19	0.016
IVRT (s)	0.10 ± 0.07	0.09 ± 0.08	0.037
𝑠^′ (cm/s)	7.27 ± 1.26	7.25 ± 1.25	0.930
𝑒^′ (cm/s)	7.00 ± 1.53	7.60 ± 2.44	0.047
𝑎^′ (cm/s)	6.99 ± 0.16	6.78 ± 0.17	<0.001
𝐸/𝐴 ratio	1.02 ± 0.32	1.22 ± 0.55	0.004
𝑒^′/𝑎^′ ratio	1.00 ± 0.22	1.12 ± 0.36	0.006
𝐸/𝑒^′ ratio	10.6 ± 1.11	9.32 ± 1.83	<0.001

LVM: left ventricular mass; IVS: thickness of interventricular septum; PWT: thickness of posterior wall of left ventricle; LAD: left atrial dimension; LVDd: left ventricular end-diastolic dimension; LVDs: left ventricular end-systolic dimension; WMA: wall motion abnormality; LVEF: left ventricular ejection fraction; Peak 𝐸: the peak of early diastolic velocities; Peak 𝐴: the peak of late diastolic velocities; DT: the deceleration time of the peak 𝐸 velocity; IVRT: isovolumic relaxation time; 𝑠^′: systolic motion wave velocities; 𝑒^′: early diastolic mitral annulus velocities; 𝑎^′: late diastolic mitral annulus velocities.