CardioNerds Amit Goal, Daniel Ambinder, & Dr. Alex Pipilas (FIT, Boston University) discuss the clinical examination in patients with heart failure with Dr. Mark Drazner, professor of medicine, clinical chief of cardiology, and medical director of the LVAD and Cardiac Transplantation Program at UT Southwestern. In this pearl laden episode, they discuss how the exam can be used to non-invasively assess a patient's hemodynamic status, risk stratify and inform prognosis, and guide management. They also discuss ways to master the evaluation of the JVP and categorize patients based on their RA:PCWP ratio.
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The CardioNerds Heart Success Series is developed in collaboration with the Heart Failure Society of America. The Heart Failure Society of America is a multidisciplinary organization working to improve and expand heart failure care through collaboration, education, research, innovation, and advocacy. Its members include physicians, scientists, nurses, nurse practitioners, and pharmacists. Learn more at hfsa.org.
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Pearls • Notes • References • Guest Profiles • Production Team
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Pearls - Clinical Examination in Heart Failure
Begin hemodynamic assessment with the evaluation of congestion (“wet” vs “dry”) and perfusion (“cold” vs “warm”). In a 2x2 table, this breaks patients into 4 broad hemodynamic profilesThe most sensitive markers of congestion (PCWP > 30) are JVP >12 with an OR of 4.6 and the presence of orthopnea with an OR of 3.6“If you are cold, you are cold, if you are warm, you can still be cold”. Sensitivity for clinical markers of low cardiac index is very poor. Consider a low output state in patients with poor response to what are thought to be appropriate therapiesMost patients with acute on chronic heart failure have an RA:PCWP ratio of 1:2. These patients are the so called “concordant” phenotype. There are two other sub-phenotypes:The “RV equalizer group” have an elevated RA:PCWP ratioThe “RV compensated” group have a lower RA:PCWP ratioClinical congestion at the time of hospital admission as well as discharge portends a poor prognosis for patients with heart failure
Show notes - Clinical Examination in Heart Failure
Figure 1
1. What is the physical exam important in patients with heart failure?
Important to view the physical exam as a diagnostic test with strengths and limitationsIt is a noninvasive way to assess hemodynamics and risk stratify patientsCan provide information on prognosisMay enhance the provider-patient relationship
2. How might we classify hemodynamics noninvasively?
Framework begins with the “Stevenson” Classification, developed by Dr. Lynne StevensonClassifies patients along two axes: congestion and perfusionCongestion is the assessment of overall volume status and estimation of right and left sided filling pressures, broadly broken up into “wet” or “dry”:“Wet”, PCWP >15mmHg“Dry”, PCWP <15mmHgPerfusion is the assessment of the adequacy of cardiac output to provide oxygen to peripheral tissues, broken up into “warm” (i.e adequate perfusion) or “cold” (i.e poor perfusion):“Warm”, Cardiac index >2.2“Cold”, Cardiac index <2.2You then develop a 2x2 table to begin hemodynamic assessment (Figure 1 - above)
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