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Table 5 The correlation of the peak atrial longitudinal strain and echocardiographic values assessed by conventional echocardiography in entire population

From: Assessment of left atrial function in feline hypertrophic cardiomyopathy by using two- dimensional speckle tracking echocardiography

Variable

r

p-value

Size and structure

 IVSd (mm)

-0.563

< 0.001*

 LVIDd (mm)

0.362

0.028*

 LVPWd (mm)

-0.516

0.001*

 LA (mm)

-0.248

0.139

 LA:Ao

-0.315

0.058

LV function

 FS%

-0.061

0.721

 E (m/s)

0.41

0.012*

 A (m/s)

0.277

0.107

 E:A

-0.191

0.271

 IVRT (m/s)

-0.204

0.240

 S (cm/s)

0.41

0.013*

 D (cm/s)

0.341

0.042*

 AR (cm/s)

0.164

0.353

 S:D ratio

0.164

0.338

 E′ (cm/s)

0.459

0.004*

 A′ (cm/s)

0.117

0.523

 S′ (cm/s)

0.078

0.651

 E′:A′ ratio

0.132

0.435

 E:E′ ratio

-0.21

0.212

  1. Abbreviations: peak velocity of early diastolic transmitral flow, A′ peak velocity of diastolic mitral annular motion as determined by pulsed wave Doppler, AR  Peak velocity of pulmonary vein flow reversal at atrial contraction, Peak velocity of diastolic pulmonary vein flow, Peak velocity of early diastolic transmitral flow, E′ Peak velocity of early diastolic mitral annular motion as determined by pulsed wave Doppler, E:A Ratio of E to A, E′A′ Ratio of E′ to A′, E:E′ Ratio of E to E′, FAC Left atrial fractional area change, FS Left ventricular fractional shortening, HCM  Hypertrophic cardiomyopathy, IVRT Isovolumic (or isovolumetric) relaxation time, IVSd Interventricular septum thickness at end-diastole, LA Left atrium, LA:Ao Left atrial and aorta ratio, LV  Left ventricle, LVIDd Left ventricular internal dimension at end -diastole, LVPWd Left ventricular posterior wall thickness at end-diastole, Peak velocity of systolic pulmonary vein, S′ Peak velocity of systolic mitral annular motion as determined by pulsed wave Doppler, S:D Ratio of S to D
  2. The significant correlation was assessed by Pearson’s correlation coefficient
  3. *indicate statistical significance at p < 0.05