Cardiogenic Shock – Part 3c: Left Ventricular Devices
LV support devices should be initiated with the goal to reverse the hemodynamic abnormalities and fully support the patient.
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Michael Ritchie
Sep 24, 20234 min read
Cardiogenic Shock – Part 3b: When to Use Mechanical Circulatory Support Devices
MCS management addresses the hemodynamic problems of decreased oxygen delivery, decreased perfusion, and increased consumption.
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Michael Ritchie
Jun 17, 202310 min read
Cardiogenic Shock Part 3a: Treatment - Medical Management
Cardiogenic shock occurs when there is not enough oxygen delivery due to decreased cardiac output related to the heart.
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Michael Ritchie
Apr 19, 20235 min read
Cardiogenic Shock – Part 2: Hemodynamics and Physiology
Understanding the hemodynamics and pathophysiology of cardiogenic shock allows you to understand the treatment.
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Michael Ritchie
Apr 3, 20238 min read
Cardiogenic Shock – Part 1: Early Diagnosis
The best way to improve out
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Michael Ritchie
Oct 10, 20226 min read
Left Ventricular Outflow Tract Obstruction (LVOTO) and SAM
Left ventricular outflow obstruction (LVOTO) can be seen in the ICU due to hypertrophic cardiomyopathy and SAM or SAM by itself.
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Michael Ritchie
Jul 17, 20228 min read
Valvular Hemodynamics and Medical Management
Learning how to medically manage valvular disorders is an important part of working in a Cardiac ICU.
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Michael Ritchie
Apr 5, 20227 min read
Left Heart Failure: Understanding the hemodynamics Part 4: Managing LV Dysfunction
Treating LV systolic dysfunction at the physiological level is extremely important since patients are not all the same.
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Michael Ritchie
Jan 16, 20224 min read
Left Heart Failure: Understanding the hemodynamics Part 3a: Simplifying Afterload
Afterload is defined as the load or resistance the heart must overcome during systole.
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Michael Ritchie
Nov 29, 20214 min read
Left Heart Failure: Understanding hemodynamics Part 2a: Contractility at the Physiological Level
Contractility is the strength of the contraction of the myocyte independent of preload and afterload.
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Michael Ritchie
Oct 31, 20217 min read
Left Heart Failure: Understanding the hemodynamics Part 1b: Measuring Preload
When looking at preload issues it is important to decide if there is a volume problem or pressure problem.
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Michael Ritchie
Oct 19, 20216 min read
Left Heart Failure: Understanding the hemodynamics Part 1a: Introducing Preload
Definition: the stretch of the cardiomyocytes at the end of diastole.
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Michael Ritchie
Jun 11, 20217 min read
Right Heart Failure: Understanding the hemodynamics - Part 3: Afterload
Afterload is defined as the resistance the heart must overcome during systole.
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Michael Ritchie
May 31, 20218 min read
Right Heart Failure: Understanding the hemodynamics - Part 2: Contractility
Right ventricular contractility is defined as the performance of the ventricle at a given filling volume and systolic pressure.
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Michael Ritchie
Mar 22, 20218 min read
Renal venous congestion: Renal failure and Hemodynamics
If a patient is hypervolemic and developing an AKI, it is usually due to volume overload and renal venous congestion.
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Michael Ritchie
Mar 15, 20215 min read
The Five -tropies of the Heart
1897: The first four –tropies were described: inotropy, chronotropy, dromotropy and bathmotropy. In 1982 lusitropy was described.
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