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CardiacTamponadeLecture
(20 Apr 2013,
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Second Look Day - Cardiac Tamponade Lecture
Potential Spaces and Cardiac Tamponade
Potential Space versus filled space
Glove and golf ball demonstration
Function - reduce friction and provide mobility
Examples of potential spaces - "Know what you know when you know something."
Trochanteric bursa - muscle fibers sliding over bone
Subacromial bursa - muscle tendon sliding between bones
Peritoneal cavity - intestinal mobility
Synovial joint cavity - bony articulations
The downside - spread of infection (YouTube video showing home treatment for knee effusion)
Drawing of heart and pericardium
Pericardial sac defined by fibrous pericardium
Fibrous pericardium is non-distensible
Pericardial cavity (potential space) defined by serous pericardium
Cardiac tamponade (
YouTube video English Version
)
Pericardial space fills with fluid or pus
Pressure prevents filling of heart chambers during diastole
Events that may lead to cardiac tamponade
Myocardial infarction
Sagittal drawing showing the relationship of the retropharyngeal space to the pericardial space
Never answer the door with a toothbrush in your mouth; let alone a pencil in your mouth
Tonsilitis and swallowed fish bones
Apical root infection of lower molars, sudden relief - not good, population based medical care in under-served communities
Learning Objectives
Know the function of potential spaces at different anatomical regions.
Relate potential spaces to the spread of infection.
Cite the clinical manifestations of potential spaces that become filled spaces.
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-- Main.LorenEvey - 18 Apr 2013
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Topic revision: r1 - 20 Apr 2013,
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