<?xml version="1.0" encoding="UTF-8"?><rss xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:content="http://purl.org/rss/1.0/modules/content/" xmlns:atom="http://www.w3.org/2005/Atom" version="2.0"><channel><title><![CDATA[FizzICU]]></title><description><![CDATA[FizzICU]]></description><link>https://www.fizzicu.com/blog</link><generator>RSS for Node</generator><lastBuildDate>Mon, 20 Apr 2026 07:01:16 GMT</lastBuildDate><atom:link href="https://www.fizzicu.com/blog-feed.xml" rel="self" type="application/rss+xml"/><item><title><![CDATA[Cardiogenic Shock – Part 3d: Right Ventricular Devices]]></title><description><![CDATA[Right ventricular MCS must address the three major problems: decreased oxygen delivery, decreased perfusion, &#38; increased oxygen consumption.]]></description><link>https://www.fizzicu.com/post/cardiogenic-shock-part-3d-right-ventricular-devices</link><guid isPermaLink="false">677957f10cb10cd88b718e13</guid><category><![CDATA[Hemodynamics]]></category><category><![CDATA[Resuscitation]]></category><pubDate>Sat, 04 Jan 2025 17:50:46 GMT</pubDate><enclosure url="https://static.wixstatic.com/media/34dc19_2bd4ba69374c4a0caca9bcc1e9121d58~mv2.png/v1/fit/w_976,h_314,al_c,q_80/file.png" length="0" type="image/png"/><dc:creator>Michael Ritchie</dc:creator></item><item><title><![CDATA[Cardiogenic Shock – Part 3c: Left Ventricular Devices]]></title><description><![CDATA[LV support devices should be initiated with the goal to reverse the hemodynamic abnormalities and fully support the patient.]]></description><link>https://www.fizzicu.com/post/cardiogenic-shock-part-3c-left-ventricular-devices</link><guid isPermaLink="false">660043b5815c0319ddd3860f</guid><category><![CDATA[Hemodynamics]]></category><pubDate>Mon, 25 Mar 2024 00:22:19 GMT</pubDate><enclosure url="https://static.wixstatic.com/media/34dc19_ac4f6264ab9e4f52ad236e5d425019cc~mv2.png/v1/fit/w_1000,h_590,al_c,q_80/file.png" length="0" type="image/png"/><dc:creator>Michael Ritchie</dc:creator></item><item><title><![CDATA[Cardiogenic Shock – Part 3b: 
When to Use Mechanical Circulatory Support Devices]]></title><description><![CDATA[MCS management addresses the hemodynamic problems of decreased oxygen delivery, decreased perfusion, and increased consumption.]]></description><link>https://www.fizzicu.com/post/cardiogenic-shock-part-3b-when-to-use-mechanical-circulatory-support-devices</link><guid isPermaLink="false">650dd83a1de58a38bb976e7b</guid><category><![CDATA[Resuscitation]]></category><category><![CDATA[Hemodynamics]]></category><pubDate>Sun, 24 Sep 2023 17:37:55 GMT</pubDate><enclosure url="https://static.wixstatic.com/media/34dc19_f0e6cc751ff045d58db8c7854b12e754~mv2.png/v1/fit/w_1000,h_642,al_c,q_80/file.png" length="0" type="image/png"/><dc:creator>Michael Ritchie</dc:creator></item><item><title><![CDATA[Cardiogenic Shock Part 3a: Treatment - Medical Management]]></title><description><![CDATA[Cardiogenic shock occurs when there is not enough oxygen delivery due to decreased cardiac output related to the heart.]]></description><link>https://www.fizzicu.com/post/cardiogenic-shock-part-3a-treatment-medical-management</link><guid isPermaLink="false">648de5480015dec3ade4951c</guid><category><![CDATA[Hemodynamics]]></category><pubDate>Sat, 17 Jun 2023 17:41:35 GMT</pubDate><enclosure url="https://static.wixstatic.com/media/34dc19_cbc2ab3612f84af6b495427c3c7ef83e~mv2.png/v1/fit/w_1000,h_642,al_c,q_80/file.png" length="0" type="image/png"/><dc:creator>Michael Ritchie</dc:creator></item><item><title><![CDATA[Cardiogenic Shock – Part 2: Hemodynamics and Physiology]]></title><description><![CDATA[Understanding the hemodynamics and pathophysiology of cardiogenic shock allows you to understand the treatment.]]></description><link>https://www.fizzicu.com/post/cardiogenic-shock-part-2-hemodynamics-and-physiology</link><guid isPermaLink="false">64402b773cc69d4e3ff1ffc2</guid><category><![CDATA[Resuscitation]]></category><category><![CDATA[Hemodynamics]]></category><pubDate>Wed, 19 Apr 2023 18:28:04 GMT</pubDate><enclosure url="https://static.wixstatic.com/media/34dc19_e03de930ff2840eb98cdad7f4f7438e2~mv2.png/v1/fit/w_1000,h_646,al_c,q_80/file.png" length="0" type="image/png"/><dc:creator>Michael Ritchie</dc:creator></item><item><title><![CDATA[Cardiogenic Shock – Part 1: Early Diagnosis]]></title><description><![CDATA[The best way to improve out]]></description><link>https://www.fizzicu.com/post/cardiogenic-shock-part-1-early-diagnosis</link><guid isPermaLink="false">642ae81cf53a329390816e9a</guid><category><![CDATA[Hemodynamics]]></category><category><![CDATA[Resuscitation]]></category><pubDate>Mon, 03 Apr 2023 17:30:51 GMT</pubDate><enclosure url="https://static.wixstatic.com/media/34dc19_5c37f3d21b9541b3bbdabdd723ebd091~mv2.png/v1/fit/w_1000,h_644,al_c,q_80/file.png" length="0" type="image/png"/><dc:creator>Michael Ritchie</dc:creator></item><item><title><![CDATA[Left Ventricular Outflow Tract Obstruction (LVOTO) and SAM]]></title><description><![CDATA[Left ventricular outflow obstruction (LVOTO) can be seen in the ICU due to hypertrophic cardiomyopathy and SAM or SAM by itself.]]></description><link>https://www.fizzicu.com/post/left-ventricular-outflow-tract-obstruction-lvoto-and-sam</link><guid isPermaLink="false">632dd2f6c4136cbf63b705b4</guid><category><![CDATA[Hemodynamics]]></category><category><![CDATA[Physiology]]></category><pubDate>Tue, 11 Oct 2022 00:55:53 GMT</pubDate><enclosure url="https://static.wixstatic.com/media/34dc19_2f6610cefe8a4a99a0453e89e7b50101~mv2.png/v1/fit/w_622,h_370,al_c,q_80/file.png" length="0" type="image/png"/><dc:creator>Michael Ritchie</dc:creator></item><item><title><![CDATA[Valvular Hemodynamics and Medical Management]]></title><description><![CDATA[Learning how to medically manage valvular disorders is an important part of working in a Cardiac ICU.]]></description><link>https://www.fizzicu.com/post/valvular-hemodynamics-and-medical-management</link><guid isPermaLink="false">62d446b2ae89bf0d4fa4c98e</guid><category><![CDATA[Hemodynamics]]></category><category><![CDATA[Challenging Dogma]]></category><pubDate>Sun, 17 Jul 2022 20:40:09 GMT</pubDate><enclosure url="https://static.wixstatic.com/media/34dc19_9800b10e93e24b2f893726615b7565a5~mv2.png/v1/fit/w_797,h_476,al_c,q_80/file.png" length="0" type="image/png"/><dc:creator>Michael Ritchie</dc:creator></item><item><title><![CDATA[Left Heart Failure: Understanding the hemodynamics 
Part 4: Managing LV Dysfunction]]></title><description><![CDATA[Treating LV systolic dysfunction at the physiological level is extremely important since patients are not all the same.]]></description><link>https://www.fizzicu.com/post/left-heart-failure-understanding-the-hemodynamics-part-4-managing-lv-dysfunction</link><guid isPermaLink="false">624cd030bd6d8395eb67fa15</guid><category><![CDATA[Hemodynamics]]></category><category><![CDATA[Physiology]]></category><pubDate>Wed, 06 Apr 2022 00:36:02 GMT</pubDate><enclosure url="https://static.wixstatic.com/media/34dc19_59f7a18bbcf14739bb388713e0910cdc~mv2.png/v1/fit/w_814,h_587,al_c,q_80/file.png" length="0" type="image/png"/><dc:creator>Michael Ritchie</dc:creator></item><item><title><![CDATA[Left Heart Failure: Understanding the hemodynamics 
Part 3b: The Physiology of Afterload]]></title><description><![CDATA[Physiologically, afterload is the ventricular wall stress that occurs during systole.]]></description><link>https://www.fizzicu.com/post/left-heart-failure-understanding-the-hemodynamics-part-3b-the-physiology-of-afterload</link><guid isPermaLink="false">61f1cd438b274e002ee4bcaa</guid><pubDate>Thu, 27 Jan 2022 19:33:04 GMT</pubDate><enclosure url="https://static.wixstatic.com/media/34dc19_dd4e8e36437846e0b1f360817fb33fec~mv2.png/v1/fit/w_986,h_531,al_c,q_80/file.png" length="0" type="image/png"/><dc:creator>Michael Ritchie</dc:creator></item><item><title><![CDATA[Left Heart Failure: Understanding the hemodynamics 
Part 3a: Simplifying Afterload]]></title><description><![CDATA[Afterload is defined as the load or resistance the heart must overcome during systole.]]></description><link>https://www.fizzicu.com/post/left-heart-failure-understanding-the-hemodynamics-part-3a-simplifying-afterload</link><guid isPermaLink="false">61e4afae029d6a00175cfd59</guid><category><![CDATA[Hemodynamics]]></category><pubDate>Mon, 17 Jan 2022 00:59:47 GMT</pubDate><enclosure url="https://static.wixstatic.com/media/34dc19_bf5a1e18aa8c4a568392f5d0138008d6~mv2.png/v1/fit/w_1000,h_843,al_c,q_80/file.png" length="0" type="image/png"/><dc:creator>Michael Ritchie</dc:creator></item><item><title><![CDATA[Left Heart Failure: Understanding the hemodynamics 
Part 2b: Clinical Contractility]]></title><description><![CDATA[The left ventricle systolic phase can be broken down into three different ways LV contractility, LV function, and LV performance.]]></description><link>https://www.fizzicu.com/post/left-heart-failure-understanding-the-hemodynamics-part-2b-clinical-contractility</link><guid isPermaLink="false">61d3a50feeaf8c0016b683e9</guid><pubDate>Tue, 04 Jan 2022 03:12:58 GMT</pubDate><enclosure url="https://static.wixstatic.com/media/34dc19_650104f26541491da553f367f7a8adad~mv2.png/v1/fit/w_724,h_456,al_c,q_80/file.png" length="0" type="image/png"/><dc:creator>Michael Ritchie</dc:creator></item><item><title><![CDATA[Left Heart Failure: Understanding hemodynamics 
Part 2a: Contractility at the Physiological Level]]></title><description><![CDATA[Contractility is the strength of the contraction of the myocyte independent of preload and afterload.]]></description><link>https://www.fizzicu.com/post/left-heart-failure-understanding-hemodynamics-part-2a-contractility-at-the-physiological-level</link><guid isPermaLink="false">61a578c9c67a6c00162378ed</guid><category><![CDATA[Hemodynamics]]></category><pubDate>Tue, 30 Nov 2021 01:53:21 GMT</pubDate><enclosure url="https://static.wixstatic.com/media/34dc19_61a7549182a54000aa3d46cb8a8e0f4a~mv2.png/v1/fit/w_993,h_547,al_c,q_80/file.png" length="0" type="image/png"/><dc:creator>Michael Ritchie</dc:creator></item><item><title><![CDATA[Left Heart Failure: Understanding the hemodynamics 
Part 1b: Measuring Preload]]></title><description><![CDATA[When looking at preload issues it is important to decide if there is a volume problem or pressure problem.]]></description><link>https://www.fizzicu.com/post/left-heart-failure-understanding-the-hemodynamics-part-1b-measuring-preload</link><guid isPermaLink="false">617f3d3a2f7e140016ce1849</guid><category><![CDATA[Hemodynamics]]></category><pubDate>Mon, 01 Nov 2021 02:14:40 GMT</pubDate><enclosure url="https://static.wixstatic.com/media/34dc19_6fd43c8121a44245af446efbd6b0a7c8~mv2.png/v1/fit/w_569,h_311,al_c,q_80/file.png" length="0" type="image/png"/><dc:creator>Michael Ritchie</dc:creator></item><item><title><![CDATA[Left Heart Failure: Understanding the hemodynamics 
Part 1a: Introducing Preload]]></title><description><![CDATA[Definition: the stretch of the cardiomyocytes at the end of diastole.]]></description><link>https://www.fizzicu.com/post/left-heart-failure-understanding-the-hemodynamics-part-1a-introducing-preload</link><guid isPermaLink="false">616f5c78ddb8f10016f9c889</guid><category><![CDATA[Physiology]]></category><category><![CDATA[Hemodynamics]]></category><pubDate>Wed, 20 Oct 2021 01:31:46 GMT</pubDate><enclosure url="https://static.wixstatic.com/media/34dc19_c369d382e24e465faea4259fff66bb0c~mv2.png/v1/fit/w_874,h_455,al_c,q_80/file.png" length="0" type="image/png"/><dc:creator>Michael Ritchie</dc:creator></item><item><title><![CDATA[Why do we give fluids in resuscitation? Part 5: Keeping the fluid intravascularly]]></title><description><![CDATA[We give fluids in resuscitation because of the oxygen delivery equation.]]></description><link>https://www.fizzicu.com/post/why-do-we-give-fluids-in-resuscitation-part-5-keeping-the-fluid-intravascularly</link><guid isPermaLink="false">612d9e716c330e0016ace95d</guid><category><![CDATA[Physiology]]></category><category><![CDATA[Resuscitation]]></category><category><![CDATA[Fluid status]]></category><pubDate>Tue, 31 Aug 2021 04:06:08 GMT</pubDate><enclosure url="https://static.wixstatic.com/media/34dc19_8ce70f04773542e98df716af2fcd0eec~mv2.png/v1/fit/w_850,h_463,al_c,q_80/file.png" length="0" type="image/png"/><dc:creator>Michael Ritchie</dc:creator></item><item><title><![CDATA[Why do we give fluids in resuscitation? Part 4: Hydrostatic Pressure]]></title><description><![CDATA[Hydrostatic pressure is the pressure that opposes oncotic pressure and added osmolarity.]]></description><link>https://www.fizzicu.com/post/why-do-we-give-fluids-in-resuscitation-part-4-hydrostatic-pressure</link><guid isPermaLink="false">6113186d48d7460015034b37</guid><category><![CDATA[Fluid status]]></category><pubDate>Wed, 11 Aug 2021 01:04:58 GMT</pubDate><enclosure url="https://static.wixstatic.com/media/34dc19_8e0b9168c82c4760930dd6bb0771fd97~mv2.png/v1/fit/w_855,h_490,al_c,q_80/file.png" length="0" type="image/png"/><dc:creator>Michael Ritchie</dc:creator></item><item><title><![CDATA[Why do we give fluids in resuscitation? Part 3: Osmotic Pressure]]></title><description><![CDATA[The logical next step in keeping volume intravascularly is giving hypertonic solutions.]]></description><link>https://www.fizzicu.com/post/why-do-we-give-fluids-in-resuscitation-part-3-osmotic-pressure</link><guid isPermaLink="false">6105ebee55f75500152093a1</guid><category><![CDATA[Fluid status]]></category><category><![CDATA[Physiology]]></category><category><![CDATA[Electrolytes]]></category><pubDate>Sun, 01 Aug 2021 01:17:59 GMT</pubDate><enclosure url="https://static.wixstatic.com/media/34dc19_2b64a29eac0f40d3843935a991704f4f~mv2.png/v1/fit/w_667,h_362,al_c,q_80/file.png" length="0" type="image/png"/><dc:creator>Michael Ritchie</dc:creator></item><item><title><![CDATA[Why do we give fluids in resuscitation? Part 2: Oncotic Pressure]]></title><description><![CDATA[Albumin makes up 75% of the oncotic pressure in the intravascular space.]]></description><link>https://www.fizzicu.com/post/why-do-we-give-fluids-in-resuscitation-part-2-oncotic-pressure</link><guid isPermaLink="false">60f9f2c7fbee4c0015e19c82</guid><category><![CDATA[Fluid status]]></category><category><![CDATA[Challenging Dogma]]></category><pubDate>Thu, 22 Jul 2021 23:43:19 GMT</pubDate><enclosure url="https://static.wixstatic.com/media/34dc19_c3abe6315a9a4fd6895ca4756804fdb0~mv2.png/v1/fit/w_619,h_374,al_c,q_80/file.png" length="0" type="image/png"/><dc:creator>Michael Ritchie</dc:creator></item><item><title><![CDATA[Why do we give fluids in resuscitation? Part 1: Background information]]></title><description><![CDATA[Starling forces are the summation of pressures that drive fluid in and out of the intravascular space.]]></description><link>https://www.fizzicu.com/post/why-do-we-give-fluids-in-resuscitation-part-1-background-information</link><guid isPermaLink="false">60f3367421ff18001576155a</guid><pubDate>Sat, 17 Jul 2021 20:17:51 GMT</pubDate><enclosure url="https://static.wixstatic.com/media/34dc19_ae3b2add98314c7c9ab8552a281b0455~mv2.png/v1/fit/w_811,h_562,al_c,q_80/file.png" length="0" type="image/png"/><dc:creator>Michael Ritchie</dc:creator></item></channel></rss>