Early Left Ventricular Systolic and Diastolic Dysfunction in Patients with Newly Diagnosed Obstructive Sleep Apnoea and Normal Left Ventricular Ejection Fraction

Table 4

Transmitral and tissue Doppler imaging parameters of OSA patients and control subjects.

	Patients (𝑛=125)	Controls (𝑛=78)	𝑃
SBP (mmHg)	131.2±11.8	119.6±10.7	<0.001**
DBP (mmHg)	82.1±8.2	77.7±6.8	<0.001**
E/A ratio	1.04±0.27	1.24±0.25	<0.001**
DCT (ms)	212.8±59.8	198.8±57.5	0.103
Peak E MV (m/s)	0.74±0.15	0.79±0.13	0.018*
Peak A MV (m/s)	0.76±0.15	0.68±0.13	<0.001**
IVRT (ms)	90.3±11.8	85.9±6.5	<0.001**
MVFP (cm/s)	0.043±0.020	0.032±0.015	<0.001**
S′Lm (cm/s)	9.30±2.60	10.31±2.14	0.005**
E′Lm (cm/s)	10.28±3.02	13.72±3.07	<0.001**
A′Lm (cm/s)	10.43±2.51	9.94±2.57	0.183
S′Sm (cm/s)	8.43±1.75	8.81±1.45	0.115
E′Sm (cm/s)	8.61±2.40	10.83±2.44	<0.001**
A′Sm (cm/s)	10.21±2.26	10.09±2.29	0.708

Results are presented as mean ± SD.
SBP: systolic blood pressure; DBP: diastolic blood pressure; DCT: deceleration time; MV: mitral valve; IVRT: isovolumic relaxation time; MVFP: mitral valve flow propagation; S′LM: tissue Doppler derived S′ amplitude of lateral part at mitral valve; E′Lm: tissue Doppler derived E′ amplitude of lateral part at mitral valve; A′Lm: tissue Doppler derived A′ amplitude of lateral part at mitral valve; S′Sm: tissue Doppler derived S′ amplitude of septal part at mitral valve; E′Sm: tissue Doppler derived E′ amplitude of septal part at mitral valve; A′Sm: tissue Doppler derived A′ amplitude of septal part at mitral valve.
∗∗Means high significant, ∗means significant.