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Table 3 Changes in echocardiographic parameters and oxygen saturation in OSA and controls during effort

From: Subclinical impairment of dynamic left ventricular systolic and diastolic function in patients with obstructive sleep apnea and preserved left ventricular ejection fraction

Variable

OSA

Controls

P-value

(n = 55)

(n = 35)

Δ sPAP (%)

44.3 ± 6.4

32.3 ± 5.5

< 0.001

Δ E/e’ ratio (%)

87.5 ± 3.5

25.4 ± 3.3

< 0.0001

Δ LV GLS (%)

15.8 ± 3.4

25.4 ± 4.1

<  0.001

Δ SpO2 (%)

- 2.5 ± 3.3

−0.8 ± 2.8

< 0.01

  1. Data are expressed as mean ± SD. Statistically significant results (p < 0.05) are reported in bold
  2. Abbreviations: sPAP Systolic pulmonary artery pressure, LV GLS Left ventricular global longitudinal strain, SpO2 Arterial oxygen saturation
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BMC Pulmonary Medicine

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