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“I am fearful, or suspicious of generalizations … they cannot guide me reliably in making decisions about particular individuals.”
-Ruth Bader Ginsburg
Between the 22nd and 24th of May, I participated in the “Hospitalist and the Resuscitationist” conference in Montreal, Canada. I spoke on the stanchions of physiology and evidence underpinning IVC collapse and hemodynamics. Additionally, I gave a brief overview on the principles of Doppler ultrasound for blood flow measurement. This lecture is included below; it is a truncated version of a talk that I gave to the UCLA pulmonary and critical care fellows in early January.
Note that while we are commonly taught that the maximal velocity time integral [VTI] is the appropriate metric for calculating volume and flow, this can be incorrect – watch and learn why!
Dr. Kenny is the cofounder and Chief Medical Officer of Flosonics Medical; he is also the creator and author of a free hemodynamic curriculum at heart-lung.org