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Table 3 VVI data of RA in different groups

From: Assessment of right atrium dysfunction in patients with obstructive sleep apnea syndrome using velocity vector imaging

  Control(n = 30) Mild(n = 23) Moderate(n = 25) Severe(n = 23)
RA-GLS(%) 41.6 ± 7.7 36.5 ± 6.5 33.6 ± 8.2* 30.5 ± 7.8*
RA-SRs(1/s) 2.21 ± 0.63 2.17 ± 0.61 1.88 ± 0.63 1.51 ± 0.58*
RA-SRe(1/s) − 1.97 ± 0.62 − 1.54 ± 0.63 −1.30 ± 0.53* − 1.18 ± 0.64*
RA-SRa(1/s) − 2.18 ± 0.55 − 2.21 ± 0.68 − 1.80 ± 0.58 −1.56 ± 0.60*
  1. RA-GLS RA global longitudinal strain, RA-SRs systolic longitudinal strain rate of RA, RA-SRe early diastolic longitudinal strain rate of RA, RA-SRa late diastolic longitudinal strain rate of RA
  2. *P < 0.05 vs controls; †P < 0.05 vs mild; ‡P < 0.05 vs moderate