Cardiac CTA parameters predict mortality after transcatheter aortic valve replacement

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LAEF was calculated as (LAVmax-LAVmin) / LAVmax x100. With a LAVmax of 109 mL and a LAVmin of 80 mL, the LAEF was calculated to be 27%. Credits: American Roentgen Ray Society (ARRS), American Journal of Roentgenology (AJR)

According to a new article in American Journal of Roentgenology (AJR)The Left Atrial Emission Fraction (LAEF) from Cardiac CTA Improves Predictive Performance of Established Clinical Risk Scores, Improves Patient Risk During Transcatheter Aortic Valve Replacement (TAVR) Close Examination and Postoperative Surveillance Can be used to evaluate.

“LAEF, derived from preoperative cardiac CTA, independently predicts mortality in the following patients: Severe aortic stenosis I am undergoing TAVR, “concludes U. Joseph Schoepf, the corresponding author of the Cardiovascular Center at the South Carolina Medical College.

Schoepf et al. Collaborated on a retrospective single in 175 patients with severe aortic stenosis (92 males, 83 females, median age 79 years) who underwent cardiac CTA for pre-TAVR clinical evaluation. Institutional research was conducted.The maximum and minimum left atrial volume were calculated using biplane area length measurements and the values ​​were indexed to the body. Surface area: LAVImaximum And LAVIMinutes, Each.

In their sample, reduced LAEF individually predicted mortality from all causes within 24 months of treatment (hazard ratio 0.97). [0.94–0.99]; p = .02). In addition, the inclusion of LAEF significantly increased the predicted mortality risk c-index of the Thoracic Surgeon Association from 0.64 to 0.70.

We acknowledge that atrial parameters are more commonly assessed using transthoracic echocardiography, and both atrial volume and atrial function can be reliably assessed using cardiac CTA. AJR Added an article.

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For more information:
Gilberto J. Aquino et al, Usefulness of Functional and Volumetric Left Atrial Parameters Derived from Preoperative Cardiac CTA in Predicting Mortality After Transcatheter Aortic Valve Replacement, American Journal of Roentgenology (2021). DOI: 10.2214 / AJR.21.26775

Quote: Cardiac CTA parameters obtained from on October 13, 2021 for post-transcatheter aortic valve replacement Predict surgical mortality (October 13, 2021)

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Cardiac CTA parameters predict mortality after transcatheter aortic valve replacement

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