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October 15, 2014Circulation Cardiovascular ImagingOpen Access

Incremental Prognostic Value of Left Ventricular Global Longitudinal Strain in Patients With Aortic Stenosis and Preserved Ejection Fraction

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Key result

Left ventricular global longitudinal strain independently predicted all-cause mortality in patients with aortic stenosis and preserved ejection fraction (HR 1.05; 95% CI 1.03-1.07; P<0.001).

Why the study?

Does left ventricular global longitudinal strain (LV-GLS) predict mortality in patients with moderate to severe aortic stenosis and preserved ejection fraction?

Population

395 patients with moderate to severe and paradoxical severe aortic stenosis and preserved ejection fraction…

Comparison

Left ventricular global longitudinal strain… vs Standard clinical and echocardiographic parameters

Design

Cohort

Follow-up

4.4±1.4 years

Authors

KKKenya KusunoseCardiac ImagingAGAndrew L. GoodmanYale UniversityRPRoosha ParikhSt. Francis Hospital

Discussion

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Implication

May refine risk stratification in aortic stenosis; hypothesis-generating and requires prospective validation before practice change.

Study Design

Type

Cohort (n=395)

Structured PICO

Does left ventricular global longitudinal strain (LV-GLS) predict mortality in patients with moderate to severe aortic stenosis and preserved ejection fraction?

P
Population
395 patients (mean age 70) with moderate to severe and paradoxical severe aortic stenosis and preserved ejection fraction, followed for a mean of 4.4 years.
E
Exposure
Left ventricular global longitudinal strain (LV-GLS) assessment using Velocity Vector Imaging
C
Comparator
Standard clinical and echocardiographic parameters
O
Outcome
All-cause mortalityhard clinical

Main Result

Hazard Ratio: 1.05 (95% CI 1.03–1.07)

p-value: p=<0.001

LV-GLS provides incremental prognostic value beyond standard clinical and echocardiographic parameters in patients with moderate to severe aortic stenosis and preserved ejection fraction.

Cite This Study

Kusunose et al. (2014) conducted a cohort in Aortic stenosis with preserved ejection fraction (n=395). Left ventricular global longitudinal strain (LV-GLS) vs. Standard clinical and echocardiographic parameters was evaluated on All-cause mortality (HR 1.05, 95% CI 1.03-1.07, p=<0.001). Left ventricular global longitudinal strain independently predicted all-cause mortality in patients with aortic stenosis and preserved ejection fraction (HR 1.05; 95% CI 1.03-1.07; P<0.001).

synapsesocial.com/papers/6a208e80f14cd0624eb41b2ehttps://doi.org/10.1161/circimaging.114.002041
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Also Consider

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  2. 2Morphometric Investigation of Intramyocardial Arterioles in Right Septal Endomyocardial Biopsy of Patients with Arterial Hypertension and Left Ventricular Hypertrophy1992 · 18 citations
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