
Coda Change Cartner, Michaela— Cardiac Surgery... then Cardiac Arrest
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Dec 23, 2014 Michaela Cartner, an intensivist at the Gold Coast, shares her expertise in managing cardiac patients post-surgery. She dives into the systematic approaches to shock management, emphasizing the need to monitor cardiac output and rhythms closely. The conversation also addresses the complexities of handling cardiac arrest situations, highlighting the critical protocols for intensive care, internal compressions, and the importance of emergency kits. Cartner's insights provide a thorough look at the challenges and nuances of cardiac care.
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Left Ventricle as Pressure Pump
- The left ventricle behaves like a pressure pump, tolerating pressure well, unlike the flow-adapted right ventricle.
- Positive end-expiratory pressure (PEEP) helps the left heart push blood forward, enhancing its function.
Valve Assessment in Shock
- Assess valves for dysfunction as they can cause shock needing urgent surgical intervention.
- Quick bedside echo can help, but skilled sonographers are essential for detailed valve evaluation.
Importance of Acid-Base and Calcium
- Heart function deteriorates significantly when pH drops around 7.1, emphasizing acid-base status in shock.
- Calcium levels and shivering control critically influence oxygen consumption and cardiac response.
