Skip to main content
Log in

Challenges in Aortic Valve Stenosis: Low-Flow States Diagnosis, Management, and a Review of the Current Literature

  • Valvular Heart Disease (T Kiefer, Section Editor)
  • Published:
Current Cardiology Reports Aims and scope Submit manuscript

Abstract

Purpose of Review

We will describe and define the current diagnosis, management, and potential therapy for low-flow aortic stenosis (AS) states, as well as summarize the available evidence underlying these recommendations.

Recent Findings

Low-flow aortic stenosis syndromes have worse prognoses than traditionally defined normal flow severe aortic stenosis. In this setting, aortic valve replacement is the only therapy that improves outcomes. Transcatheter aortic valve replacement has an ever-expanding role in the treatment of aortic stenosis, and there is growing evidence that TAVR may be a preferred therapy for low-flow AS states.

Summary

Aortic stenosis remains one of the most common valvular diseases requiring therapy. Low-flow AS represents up to 40% of all patients with AS and is associated with significant mortality. This condition requires further testing for appropriate diagnosis and treatment. Low-flow AS states have poor prognoses, thus AVR and especially TAVR have a growing role in treatment of this challenging subset of AS patients.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Institutional subscriptions

Fig. 1

Similar content being viewed by others

References

Papers of particular interest, published recently, have been highlighted as: • Of importance •• Of major importance

  1. Nkomo VT, Gardin JM, Skelton TN, Gottdiener JS, Scott CG, Enriquez-Sarano M. Burden of valvular heart diseases: a population-based study. Lancet (London, England). 2006;368:1005–11.

    Article  Google Scholar 

  2. Ross J Jr, Braunwald E. Aortic stenosis. Circulation. 1968;38:61–7.

    Article  PubMed  Google Scholar 

  3. Dharmarajan K, Foster J, Coylewright M, et al. The medically managed patient with severe symptomatic aortic stenosis in the TAVR era: patient characteristics, reasons for medical management, and quality of shared decision making at heart valve treatment centers. PLoS One. 2017;12:e0175926.

    Article  PubMed  PubMed Central  Google Scholar 

  4. Nishimura RA, Otto CM, Bonow RO, et al. AHA/ACC guideline for the management of patients with valvular heart disease: a report of the American College of Cardiology/American Heart Association Task Force on Practice Guidelines. J Am Coll Cardiol. 2014;2014(63):e57–185.

    Article  Google Scholar 

  5. Nishimura RA, Otto CM, Bonow RO, et al. AHA/ACC focused update of the 2014 AHA/ACC guideline for the management of patients with valvular heart disease: a report of the American College of Cardiology/American Heart Association Task Force on Clinical Practice Guidelines. J Am Coll Cardiol. 2017;2017(70):252–89.

    Article  Google Scholar 

  6. Pibarot P, Dumesnil JG. Low-flow, low-gradient aortic stenosis with normal and depressed left ventricular ejection fraction. J Am Coll Cardiol. 2012;60:1845–53.

    Article  PubMed  Google Scholar 

  7. Adams DH, Popma JJ, Reardon MJ, et al. Transcatheter aortic-valve replacement with a self-expanding prosthesis. N Engl J Med. 2014;370:1790–8.

    Article  CAS  PubMed  Google Scholar 

  8. Leon MB, Smith CR, Mack M, et al. Transcatheter aortic-valve implantation for aortic stenosis in patients who cannot undergo surgery. N Engl J Med. 2010;363:1597–607.

    Article  CAS  PubMed  Google Scholar 

  9. •• Herrmann HC, Pibarot P, Hueter I, et al. Predictors of mortality and outcomes of therapy in low-flow severe aortic stenosis: a placement of aortic transcatheter valves (PARTNER) trial analysis. Circulation. 2013;127:2316–26. This study provides important evidence of the efficacy and safety of TAVR in patients with low-flow AS states

    Article  PubMed  Google Scholar 

  10. Elmariah S, Palacios IF, McAndrew T, et al. Outcomes of transcatheter and surgical aortic valve replacement in high-risk patients with aortic stenosis and left ventricular dysfunction: results from the placement of aortic transcatheter valves (PARTNER) trial (cohort A). Circ Cardiovasc Interventions. 2013;6:604–14.

    Article  Google Scholar 

  11. deFilippi CR, Willett DL, Brickner ME, et al. Usefulness of dobutamine echocardiography in distinguishing severe from nonsevere valvular aortic stenosis in patients with depressed left ventricular function and low transvalvular gradients. Am J Cardiol. 1995;75:191–4.

    Article  CAS  PubMed  Google Scholar 

  12. Nishimura RA, Grantham JA, Connolly HM, Schaff HV, Higano ST, Holmes DR Jr. Low-output, low-gradient aortic stenosis in patients with depressed left ventricular systolic function: the clinical utility of the dobutamine challenge in the catheterization laboratory. Circulation. 2002;106:809–13.

    Article  PubMed  Google Scholar 

  13. Pibarot P, Dumesnil JG. Paradoxical low-flow, low-gradient aortic stenosis: new evidence, more questions. Circulation. 2013;128:1729–32.

    Article  PubMed  Google Scholar 

  14. Clavel MA, Pibarot P, Dumesnil JG. Paradoxical low flow aortic valve stenosis: incidence, evaluation, and clinical significance. Curr Cardiol Rep. 2014;16:431.

    Article  PubMed  Google Scholar 

  15. Dumesnil JG, Pibarot P, Carabello B. Paradoxical low flow and/or low gradient severe aortic stenosis despite preserved left ventricular ejection fraction: implications for diagnosis and treatment. Eur Heart J. 2010;31:281–9.

    Article  PubMed  Google Scholar 

  16. Baumgartner H, Hung J, Bermejo J, et al. Recommendations on the echocardiographic assessment of aortic valve stenosis: a focused update from the European Association of Cardiovascular Imaging and the American Society of Echocardiography. J Am Soc Echocardiogr : Off Publ Am Soc Echocardiogr. 2017;30:372–92.

    Article  Google Scholar 

  17. Clavel MA, Fuchs C, Burwash IG, et al. Predictors of outcomes in low-flow, low-gradient aortic stenosis: results of the multicenter TOPAS Study. Circulation. 2008;118:S234–42.

    Article  PubMed  Google Scholar 

  18. Monin JL, Monchi M, Gest V, Duval-Moulin AM, Dubois-Rande JL, Gueret P. Aortic stenosis with severe left ventricular dysfunction and low transvalvular pressure gradients: risk stratification by low-dose dobutamine echocardiography. J Am Coll Cardiol. 2001;37:2101–7.

    Article  CAS  PubMed  Google Scholar 

  19. Barbash IM, Minha S, Ben-Dor I, et al. Relation of preprocedural assessment of myocardial contractility reserve on outcomes of aortic stenosis patients with impaired left ventricular function undergoing transcatheter aortic valve implantation. Am J Cardiol. 2014;113:1536–42.

    Article  PubMed  Google Scholar 

  20. Oh JK, Taliercio CP, Holmes DR Jr, et al. Prediction of the severity of aortic stenosis by Doppler aortic valve area determination: prospective Doppler-catheterization correlation in 100 patients. J Am Coll Cardiol. 1988;11:1227–34.

    Article  Google Scholar 

  21. Zoghbi WA, Galan A, Quinones MA. Accurate assessment of aortic stenosis severity by Doppler echocardiography independent of aortic jet velocity. Am Heart J. 1988;116:855–63.

    Article  CAS  PubMed  Google Scholar 

  22. Clavel MA, Ennezat PV, Marechaux S, et al. Stress echocardiography to assess stenosis severity and predict outcome in patients with paradoxical low-flow, low-gradient aortic stenosis and preserved LVEF. JACC Cardiovasc Imaging. 2013;6:175–83.

    Article  PubMed  Google Scholar 

  23. Clavel MA, Burwash IG, Pibarot P. Cardiac imaging for assessing low-gradient severe aortic stenosis. JACC Cardiovasc Imaging. 2017;10:185–202.

    Article  PubMed  Google Scholar 

  24. Clavel MA, Malouf J, Messika-Zeitoun D, Araoz PA, Michelena HI, Enriquez-Sarano M. Aortic valve area calculation in aortic stenosis by CT and Doppler echocardiography. JACC Cardiovasc Imaging. 2015;8:248–57.

    Article  PubMed  Google Scholar 

  25. Cueff C, Serfaty JM, Cimadevilla C, et al. Measurement of aortic valve calcification using multislice computed tomography: correlation with haemodynamic severity of aortic stenosis and clinical implication for patients with low ejection fraction. Heart. 2011;97:721–6.

    Article  PubMed  Google Scholar 

  26. Clavel MA, Messika-Zeitoun D, Pibarot P, et al. The complex nature of discordant severe calcified aortic valve disease grading: new insights from combined Doppler echocardiographic and computed tomographic study. J Am Coll Cardiol. 2013;62:2329–38.

    Article  CAS  PubMed  Google Scholar 

  27. Aggarwal SR, Clavel MA, Messika-Zeitoun D, et al. Sex differences in aortic valve calcification measured by multidetector computed tomography in aortic stenosis. Circ Cardiovasc Imaging. 2013;6:40–7.

    Article  PubMed  Google Scholar 

  28. Nishimura RA, Carabello BA. Hemodynamics in the cardiac catheterization laboratory of the 21st century. Circulation. 2012;125:2138–50.

    Article  PubMed  Google Scholar 

  29. Thaden JJ, Nkomo VT, Lee KJ, Oh JK. Doppler imaging in aortic stenosis: the importance of the nonapical imaging windows to determine severity in a contemporary cohort. J Am Soc Echocardiogr : Off Publ Am Soc Echocardiogr. 2015;28:780–5.

    Article  Google Scholar 

  30. Makkar RR, Fontana GP, Jilaihawi H, et al. Transcatheter aortic-valve replacement for inoperable severe aortic stenosis. N Engl J Med. 2012;366:1696–704.

    Article  CAS  PubMed  Google Scholar 

  31. Kapadia SR, Leon MB, Makkar RR, et al. 5-year outcomes of transcatheter aortic valve replacement compared with standard treatment for patients with inoperable aortic stenosis (PARTNER 1): a randomised controlled trial. Lancet (London, England). 2015;385:2485–91.

    Article  Google Scholar 

  32. Redfors B, Pibarot P, Gillam LD, et al. Stress testing in asymptomatic aortic stenosis. Circulation. 2017;135:1956–76.

    Article  PubMed  Google Scholar 

  33. Iwahashi N, Nakatani S, Umemura S, Kimura K, Kitakaze M. Usefulness of plasma B-type natriuretic peptide in the assessment of disease severity and prediction of outcome after aortic valve replacement in patients with severe aortic stenosis. J Am Soc Echocardiogr : Off Publ Am Soc Echocardiogr. 2011;24:984–91.

    Article  Google Scholar 

  34. Goodman A, Kusunose K, Popovic ZB, et al. Synergistic utility of brain natriuretic peptide and left ventricular strain in patients with significant aortic stenosis. J Am Heart Assoc. 2016;5

  35. Dahou A, Bartko PE, Capoulade R, et al. Usefulness of global left ventricular longitudinal strain for risk stratification in low ejection fraction, low-gradient aortic stenosis: results from the multicenter true or pseudo-severe aortic stenosis study. Circ Cardiovasc Imaging. 2015;8:e002117.

    Article  PubMed  Google Scholar 

  36. Musa TA, Uddin A, Swoboda PP, et al. Cardiovascular magnetic resonance evaluation of symptomatic severe aortic stenosis: association of circumferential myocardial strain and mortality. J Cardiovasc Magn Reson : Off J Soc Cardiovasc Magn Reson. 2017;19:13.

    Article  Google Scholar 

  37. Bartko PE, Heinze G, Graf S, et al. Two-dimensional strain for the assessment of left ventricular function in low flow-low gradient aortic stenosis, relationship to hemodynamics, and outcome: a substudy of the multicenter TOPAS study. Circ Cardiovasc Imaging. 2013;6:268–76.

    Article  PubMed  Google Scholar 

  38. Dweck MR, Joshi S, Murigu T, et al. Midwall fibrosis is an independent predictor of mortality in patients with aortic stenosis. J Am Coll Cardiol. 2011;58:1271–9.

    Article  PubMed  Google Scholar 

  39. Barone-Rochette G, Pierard S, De Meester de Ravenstein C, et al. Prognostic significance of LGE by CMR in aortic stenosis patients undergoing valve replacement. J Am Coll Cardiol. 2014;64:144–54.

    Article  PubMed  Google Scholar 

  40. Dayan V, Vignolo G, Magne J, Clavel MA, Mohty D, Pibarot P. Outcome and impact of aortic valve replacement in patients with preserved LVEF and low-gradient aortic stenosis. J Am Coll Cardiol. 2015;66:2594–603.

    Article  PubMed  Google Scholar 

  41. Tribouilloy C, Levy F, Rusinaru D, et al. Outcome after aortic valve replacement for low-flow/low-gradient aortic stenosis without contractile reserve on dobutamine stress echocardiography. J Am Coll Cardiol. 2009;53:1865–73.

    Article  PubMed  Google Scholar 

  42. • Clavel MA, Berthelot-Richer M, Le Ven F, et al. Impact of classic and paradoxical low flow on survival after aortic valve replacement for severe aortic stenosis. J Am Coll Cardiol. 2015;65:645–53. This study provides contemporary evidence on the impact of low-flow AS states on patients who undergo aortic valve replacement.

    Article  PubMed  Google Scholar 

  43. Le Ven F, Freeman M, Webb J, et al. Impact of low flow on the outcome of high-risk patients undergoing transcatheter aortic valve replacement. J Am Coll Cardiol. 2013;62:782–8.

    Article  PubMed  Google Scholar 

  44. Ozkan A, Hachamovitch R, Kapadia SR, Tuzcu EM, Marwick TH. Impact of aortic valve replacement on outcome of symptomatic patients with severe aortic stenosis with low gradient and preserved left ventricular ejection fraction. Circulation. 2013;128:622–31.

    Article  PubMed  Google Scholar 

  45. Anjan VY, Herrmann HC, Pibarot P, et al. Evaluation of flow after transcatheter aortic valve replacement in patients with low-flow aortic stenosis: a secondary analysis of the PARTNER randomized clinical trial. JAMA Cardiol. 2016;1:584–92.

    Article  PubMed  Google Scholar 

  46. Samad Z, Vora AN, Dunning A, et al. Aortic valve surgery and survival in patients with moderate or severe aortic stenosis and left ventricular dysfunction. Eur Heart J. 2016;37:2276–86.

    Article  PubMed  Google Scholar 

  47. Spitzer E, Van Mieghem NM, Pibarot P, et al. Rationale and design of the transcatheter aortic valve replacement to unload the left ventricle in patients with advanced heart failure (TAVR UNLOAD) trial. Am Heart J. 2016;182:80–8.

    Article  PubMed  Google Scholar 

Download references

Author information

Authors and Affiliations

Authors

Corresponding author

Correspondence to Matthew W. Sherwood.

Ethics declarations

Conflict of Interest

Matthew W. Sherwood and Todd L. Kiefer declare that they have no conflict of interest.

Human and Animal Rights and Informed Consent

This article does not contain any studies with human or animal subjects performed by any of the authors.

Additional information

This article is part of the Topical Collection on Valvular Heart Disease

Rights and permissions

Reprints and permissions

About this article

Check for updates. Verify currency and authenticity via CrossMark

Cite this article

Sherwood, M.W., Kiefer, T.L. Challenges in Aortic Valve Stenosis: Low-Flow States Diagnosis, Management, and a Review of the Current Literature. Curr Cardiol Rep 19, 130 (2017). https://doi.org/10.1007/s11886-017-0941-z

Download citation

  • Published:

  • DOI: https://doi.org/10.1007/s11886-017-0941-z

Keywords

Navigation