Wall motion score index predicts mortality after coronary artery bypass grafting in patients with viable non-functioning myocardium

Kamal, Yasser Ali; Al-Elwany, Shady Eid; Ghoneim, A.; Elminshawy, Ahmed

doi:10.35841/cardiovascular-surgery.1.2.39-40

Cited by 1 publication

(4 citation statements)

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“…LV wall motion assessment is an important adjunct to perfusion imaging in assessing ischemic changes ( 7 ). The prognostic value of WMSI has been investigated in patients with acute STEMI and NSTEMI myocardial infarction as well as post-CABG, suggesting it provides incremental information in predicting infarct size and mortality ( 8 , 21 , 24 , 25 ). However, there has been an incremental value to WMSI with strain/deformation imaging.…”

Section: Discussionmentioning

confidence: 99%

“…The assessment for left ventricular (LV) wall motion abnormalities (WMA) is an important adjunct in assessing ischemic changes ( 7 ). It is conventionally performed by subjective visual examination, which is associated with considerable interobserver variability ( 8 ). The wall motion score index (WMSI) reflects the magnitude of myocardial damage and the total extent of WMA ( 8 ).…”

Section: Introductionmentioning

confidence: 99%

“…It is conventionally performed by subjective visual examination, which is associated with considerable interobserver variability ( 8 ). The wall motion score index (WMSI) reflects the magnitude of myocardial damage and the total extent of WMA ( 8 ).…”

Section: Introductionmentioning

confidence: 99%

“…The wall motion score index (WMSI) reflects the magnitude of myocardial damage and the total extent of WMA (8).…”

Section: Introductionmentioning

confidence: 99%

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Wall motion assessment by feature tracking in pediatric patients with coronary anomalies undergoing dobutamine stress CMR

Sachdeva,

Molossi,

Reaves-O’Neal

et al. 2024

Front. Cardiovasc. Med.

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BackgroundLeft ventricular (LV) wall motion assessment is an important adjunct in addition to perfusion defects in assessing ischemic changes. This study aims to investigate the feasibility and utility of performing feature tracking (FT) in pediatric patients with coronary anomalies undergoing dobutamine stress CMR to assess wall motion abnormalities (WMA) and perfusion defects.MethodThis is a retrospective study where 10 patients with an inducible first-pass perfusion (FPP) defect and 10 without were selected. Global LV circumferential strain/strain rate (GCS/GCSR) was measured at rest and at peak stress (systole and diastole) using a commercially available feature tracking software. Peak GCS and GCSR were compared to indexed wall motion score (WMSI) between groups with and without FPP defect and in subjects with and without WMA.ResultsThe median age of patients was 13.5 years (Q1, 11 years; Q3, 15 years). Five subjects had qualitatively WMA at peak stress. A moderate correlation of GCS with WMSI at peak stress (0.48, p = 0.026) and a significant difference between GCS at rest and stress in patients with no inducible WMA (p = 0.007) were seen. No significant difference was noted in GCS between rest and stress in patients with WMA (p = 0.13). There was a larger absolute GCS/GCSR at peak stress in subjects with no inducible FPP defect or WMA.ConclusionSmaller absolute GCS and a lack of significant change in GCS at peak stress in those with inducible WMA or perfusion defect are suggestive of compromised LV deformation in subjects with inducible WMA. Given these findings, GCS derived from CMR-FT may be used to objectively assess WMA in pediatric patients undergoing stress CMR.

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