Cardionerds: A Cardiology Podcast

236. CardioNerds Rounds: Challenging Cases – Mitral Regurgitation with Dr. Rick Nishimura

13 snips
Oct 6, 2022
Dr. Rick Nishimura, a professor of medicine at Mayo Clinic, discusses managing mitral regurgitation in challenging cases. The podcast covers topics such as guidelines, real patient cases, treatment challenges, microclip usage, atrial fibrillation impact, and postoperative complications. The conversation delves into the nuances of mitral regurgitation management and the importance of echocardiograms in therapy decisions.
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INSIGHT

Secondary MR Is A Ventricular Disease

  • Secondary (functional) MR is fundamentally a ventricular disease distinct from primary valve disease.
  • Successful intervention depends on whether MR is driven by the ventricle or by valve apparatus abnormalities.
ADVICE

Optimize Medical Therapy First

  • Confirm patients are on truly optimized guideline-directed medical therapy before considering mitral intervention.
  • Use simple tools like chest x-ray and physical exam to judge residual congestion and dry weight.
INSIGHT

Don't Trust Echo Alone; Examine First

  • Physical exam findings (JVP, V-waves, murmur intensity) give crucial context to echo-reported TR/MR severity.
  • A loud holosystolic murmur in low-EF patients suggests MR may be valve-driven not just low flow.
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