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Behind your patients, ahead of aortic regurgitation

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man on phone
man on phone

Getting AR patients the care they need

Aortic regurgitation (AR) is the third most common valvular pathology found in the general population, with a lifetime risk of 13% in men and 8.5% in women.1

It is critical to diagnose and treat AR early, as progression is associated with increased mortality risk. Within ten years of diagnosis of severe AR, 75% of patients die or require aortic valve replacement.1-4

Cardiologists play a key role in identifying AR and getting patients the care they need before it's too late.

AR prevalence increases with age

The Framingham Heart Study (1999) was a prospective epidemiological study that included the evaluation of the prevalence and severity of AR by color Doppler examination performed between 1991 and 1995.5

prevalence
prevalence
prevalence

Progression of AR can be variable and exponentially increases mortality risk.2,3

Rates of progression are determined by a complicated interaction of several variables, including AR severity, aortic root pathology, and the adaptive response of the left ventricle (LV).6

progression
progression
progression

Intervention is key to patient outcomes

 According to guidelines from the European Society of Cardiology (ESC) and the European Association for Cardio-Thoracic Surgery (EACTS), surgery is indicated in symptomatic severe AR regardless of left ventricle function. 10

Relying on symptoms alone may result in an intervention with poorer outcomes3,8

Even in asymptomatic severe AR, mortality can be as high as 19% within 6.6 years of diagnosis.

Echocardiography is the initial method of AR evaluation9-11

Multiple echocardiographic parameters are required to precisely quantify AR.11 Transthoracic echocardiography (TTE) is an essential first diagnostic test, and measurements obtained are frequently sufficient to evaluate the presence and severity of AR.9, 11

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Echocardiography allows for the:

  • Assessment of the motion of aortic leaflets and anatomy of the aortic root
  • Detection of the presence and severity of AR
  • Characterization of LV size and function11

An analysis of severe symptomatic AR (ssAR) patients and mortality

In an analysis of the Optum database from 2008-2016:

analysis
analysis
analysis
  • Despite the class 1 indication for SAVR, most patients with ssAR do not receive treatment within one year12
  • A patient’s primary cardiologist was a strong determinant of likelihood of receiving SAVR, particularly for patients with reduced LVEF12
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chart
chart
chart
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An adjusted analysis showed patients who underwent SAVR had a 62% reduction in risk of 1-year mortality compared to patients who did not undergo surgery.12

The Heart Team builds on the foundation of the care you provide

All patients with severe valvular heart disease being considered for valve intervention should be evaluated by a multidisciplinary team with either referral to or consultation with a primary or comprehensive valve center.9

heart team
heart team
heart team

References

  1. Galusko V, Thornton G, Jozsa C, et al. Aortic regurgitation management: a systematic review of clinical practice guidelines and recommendations. Eur Heart J Qual Care Clin Outcomes. 2022;8(2):113-126.
  2. Akinseye OA, Pathak A, Ibebuogu UN. Aortic valve regurgitation: a comprehensive review. Curr Probl Cardiol. 2018;43(8):315-334.
  3. Wang SS. Aortic Regurgitation. The heart.org and Medscape. https://emedicine.medscape.com/article/150490-overview. Updated December 7, 2021.
  4. Flint N, Wunderlich, N, Shmueli, H, et al. Aortic regurgitation. Curr Cardiol Rep. 2019;21:65.
  5. Singh JP, Evans JC, Levy D, et al. Prevalence and clinical determinants of mitral, tricuspid, and aortic regurgitation (the Framingham Heart Study). Am J Cardiol. 1999;83(6):897–902.
  6. Bekeredjian R, Grayburn PA. Valvular heart disease. Circulation. 2005;112(1):125–34.
  7. Aksoy O, Griffin BP. Aortic Valve Disease. In: Valvular heart disease. 4th ed. Manual of Cardiovascular Medicine, vol1. Philadelphia, PA: Lippincott Williams & Wilkins; 2013. p. 259.
  8. Yang LT, Michelena HI, Scott CG, et al. Outcomes in Chronic Hemodynamically Significant Aortic Regurgitation and Limitations of Current Guidelines. J Am Coll Cardiol. 2019;73(14):1741-1752.
  9. Otto CM, Nishimura RA, Bonow RO, et al. 2020 ACC/AHA Guideline. Circulation. 2021;143(5):e35-e71.
  10. Vahanian A, Beyersdorf F, Praz F, et al. 2021 ESC/EACTS Guidelines. Euro Heart J. 2022; 43(7):561-632.
  11. Zoghbi WA, Adams D, Bonow RO, et al. Recommendations for Noninvasive Evaluation of Native Valvular Regurgitation: A Report from the American Society of Echocardiography Developed in Collaboration with the Society for Cardiovascular Magnetic Resonance. J Am Soc Echocardiogr. 2017;30(4):303-371.
  12. Thourani VH, Brennan MJ, Edelman JJ, et al. Treatment Patterns, Disparities, and Management Strategies Impact Clinical Outcomes in Patients with Symptomatic Severe Aortic Regurgitation. Structural Heart 2021; 5(6): 608-618.