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SIMULATION CASEBOOK - MyCourses

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Gilbert Program in Medical Simulation<br />

Simulation Casebook<br />

Harvard Medical School Draft of the 1 st edition (2011), updated 3/2/12<br />

Drugs<br />

b. Different types of shock<br />

i. Volume problem: Hypovolemic (eg, - Hemorrhagic)<br />

ii. Pump problem: Cardiogenic<br />

iii. Other problem: Septic, Neurogenic, Anaphylactic<br />

c. Cardiogenic shock: presentation and etiology<br />

d. Treatment Can just focus on cardiogenic shock, but also may want to<br />

compare to treatment of other types of shock, such as septic shock written<br />

below<br />

i. Septic shock: infection/systemic inflammatory response leading to<br />

decreased vascular tone and capillary leakage leading to depleted<br />

intravascular volume<br />

1. Fill ‘tank’- add volume until MAP >65 or tank full [CVP 8-<br />

12]<br />

2. If tank adequately filled [CVP] but not enough to maintain<br />

blood pressure, increase tone with pressors<br />

3. Source control: identify causative agent and treat early<br />

ii. Cardiogenic shock: Pump problem. CO = SV x HR<br />

1. Increase CO [remember that HR and SV are related factors]<br />

2. Address underlying cause of pump failure (e.g. STEMI <br />

reperfusion/cath)<br />

3. Medications:<br />

Receptors<br />

Alpha (1) Beta 1 Beta 2<br />

Vasoconstriction<br />

“pressors”<br />

Contractility/HR, vaso/bronchodilation<br />

“ino-/chrono-tropes”<br />

Epinephrine ++++ ++++ ++<br />

Norepi/Levophed ++++ ++ 0<br />

Phenylephrine/Neo ++++ 0 0<br />

Dobutamine* 0 ++++ ++<br />

Dopamine<br />

ALL, in dose dependent fashion B2, B1, then Alpha as dose increases<br />

*Not technically a “pressor” as it lacks Alpha-1 properties<br />

***NOTE: Teaching points in addition to shock can include EKG reading and treatment for ACS<br />

VIII.<br />

Development and Deployment<br />

This case was developed for a widely subscribed fourth year medical school elective (emergency<br />

medicine/transition to internship), and has been used over several years as part of an instructional module<br />

on the physiology and management of shock.<br />

29

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