Case-Assignment: Cardiac Catheterization
Case-Assignment: Cardiac Catheterization
Case-Assignment: Cardiac Catheterization
Case-Assignment: Cardiac Catheterization
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Week 5 discussion DQ1 Demographic data are collected for every study. What is the purpose of describing the demographic data? DQ2 There is a tendency for novice researchers to develop their own instrument if they cannot readily find one. How might you respond to a peer or manager who asks you to help develop a new tool to collect patient data on anxiety prior to cardiac catheterization?
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© homeworkjoy.comCardiac catheterization (heart cath) is the insertion of a catheter into a chamber or vessel of the heart. This is done both for diagnostic and interventional purposes. A common example of cardiac catheterization is coronary catheterization that involves catheterization of the coronary arteries for coronary artery disease and myocardial infarctions (“heart attacks”). Catheterization is most often performed in special laboratories with fluoroscopy and highly maneuverable tables. These “cath labs” are often equipped with cabinets of catheters, stents, balloons, etc. of various sizes to increase efficiency. Monitors show the fluoroscopy imaging, EKG, pressure waves, and more.
Coronary angiography is a diagnostic procedure that allows visualization of the coronary vessels. Fluoroscopy is used to visualize the lumens of the arteries as a 2-D projection. Should these arteries show narrowing or blockage, then techniques exist to open these arteries. Percutaneous coronary intervention is a blanket term that involves the use of mechanical stents, balloons, etc. to increase blood flow to previously blocked (or occluded) vessels.
Measuring pressures in the heart is also an important aspect to catheterization. The catheters are fluid filled conduits that can transmit pressures to outside the body to pressure transducers. This allows measuring pressure in any part of the heart that a catheter can be maneuvered into.
Measuring blood flow is also possible through several methods. Most commonly, flows are estimated using the Fick principleand thermodilution. These methods have drawbacks, but give invasive estimations of the cardiac output, which can be used to make clinical decisions (e.g., cardiogenic shock, heart failure) to improve the person’s condition.
Cardiac catheterization can be used as part of a therapeutic regimen to improve outcomes for survivors of out-of-hospital cardiac arrest.[1]
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