Objectives
Speckle-tracking echocardiography is a promising tool for evaluating cardiac diastolic
dysfunction. A correlation between left atrial strain rate during atrial contraction
and the severity of diastolic dysfunction previously has been demonstrated. Because
visualization of the left atrial walls is difficult with transesophageal echocardiography,
the authors evaluated the use of left ventricular strain rate during atrial contraction
as a substitute for left atrial strain rate to intraoperatively measure the extent
of cardiac diastolic dysfunction.
Design
Retrospective clinical study.
Setting
Single institutional study.
Participants
Sixty-six patients who underwent cardiac surgery between January 2018 and January
2021.
Interventions
None.
Measurements and Main Results
Preoperative echocardiographic reports and intraoperative echocardiographic images
of the participants were studied. The correlation of cardiac diastolic dysfunction
stage with the peak longitudinal strain rate during late diastole and the time to
peak value were evaluated. The late diastolic peak longitudinal strain rate was correlated
significantly with the stage of diastolic dysfunction (r = –0.64, p < 0.0001). There
was no significant correlation between the stage of diastolic dysfunction and the
time to peak value (r = –0.17, p = 0.18). A late diastolic peak longitudinal strain
rate <0.68 1/s had a sensitivity of 80% and specificity of 81% for predicting grade
2 or 3 diastolic dysfunction.
Conclusions
The late diastolic peak longitudinal strain rate correlates with the severity of diastolic
dysfunction in patients undergoing cardiac surgery.
Key Words
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Article info
Publication history
Published online: July 01, 2021
Identification
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