222. CardioNerds Rounds: Challenging Cases Nuances in Pulmonary Hypertension Management with Dr. Ryan Tedford

Published: July 14, 2022, 5:18 a.m.

It\u2019s another session of CardioNerds Rounds! In these rounds, Co-Chair, Dr. Karan Desai (previous FIT at the University of Maryland Medical Center, and now faculty at Johns Hopkins) joins Dr. Ryan Tedford (Professor of Medicine and Chief of Heart Failure and Medical Directory of Cardiac Transplantation at the Medical University of South Carolina in Charleston, SC) to discuss the nuances of managing pulmonary hypertension in the setting of left-sided heart disease. Dr. Tedford is an internationally-recognized clinical researcher, educator, clinician and mentor, with research focuses that include the hemodynamic assessment of the right ventricle and its interaction with the pulmonary circulation and left heart.\n\n\n\nThis episode is supported with unrestricted funding from Zoll LifeVest. A special thank you to Mitzy Applegate and Ivan Chevere for their production skills that help make CardioNerds Rounds such an amazing success. All CardioNerds content is planned, produced, and reviewed solely by CardioNerds. Case details are altered to protect patient health information. CardioNerds Rounds is co-chaired by\xa0Dr. Karan Desai\xa0and\xa0Dr. Natalie Stokes.\xa0\n\n\n\nSpeaker disclosures: None\n\n\n\nCases discussed and Show Notes \u2022 References \u2022 Production Team\n\n\n\n\n\n\n\n\n\nCardioNerds Rounds PageCardioNerds Episode PageCardioNerds AcademyCardionerds Healy Honor Roll\n\n\n\n\n\nCardioNerds Journal ClubSubscribe to The Heartbeat Newsletter!Check out CardioNerds SWAG!Become a CardioNerds Patron!\n\n\n\n\n\n\n\n\n\nShow notes - Challenging Cases - Nuances in Pulmonary Hypertension Management with Dr. Ryan Tedford\n\n\n\nCase #1 Synopsis:\n\n\n\nA woman in her late 30s presented to the hospital with 4 weeks of worsening dyspnea. Her history includes dilated non-ischemic cardiomyopathy diagnosed in the setting of a VT arrest around 10 years prior. Over the past 10 years she has been on guideline-directed medical therapy with symptoms that had been relatively controlled (characterized as NYHA Class II), but without objective improvement in her LV dimensions or ejection fraction (LVEF 15-20% by TTE and CMR and LVIDd at 6.8 cm). Over the past few months she had been noting decreased exercise tolerance, worsening orthopnea, and episodes of symptomatic hypotension at home. When she arrived to the hospital, she presented with BP 95/70 mmHg, increased respiratory effort, congestion and an overall profile consistent with SCAI Stage C-HF shock. In the case, we go through the hemodynamics at various points during her hospitalization and discuss options for management including medical therapy and mechanical support. The patient was eventually bridged to transplant with an Impella 5.5.\n\n\n\nInitial Hemodynamics\n\n\n\nRight Atrium (RA) Pressure Tracing:\n\n\n\n\n\n\n\nRight Ventricle (RV) Pressure Tracing:\n\n\n\n\n\n\n\nPulmonary Artery (PA) Pressure Tracing:\n\n\n\n\n\n\n\nPulmonary Capillary Wedge Pressure (PCWP) Tracing:\n\n\n\n\n\n\n\n\n\n\n\nCase 1 Rounding Pearls\n\n\n\nOne of the first points that Dr. Tedford made was thinking about our classic frameworks of characterizing acute decompensated heart failure, specifically the \u201cStevenson\u201d classification developed by Dr. Lynne Stevenson that phenotypes patients along two axes: congestion (wet or dry) and perfusion (warm or cold). Dr. Tedford cautioned that young patients may not fit into these classic boxes well, and that a normal lactate should not re-assure the clinician that perfusion is normal.In reviewing the waveforms, Dr. Tedford took a moment to note that besides just recording the absolute values of the pressures transduced in each chamber or vessel, it is critical to understand the morphology of the tracings themselves. For instance, with the RA pressure tracing above, there is no respiratory variation in the mean pressure. This is essentially a \u201cresting Kussmaul\u2019s sign,\u201d which is typically indicative of significant RV dysfunction. Thus, even though our echocardiogram in this case did not necessarily show a significantly dilated RV with mildly reduced longitudinal function (T...