Week Three
Topic: Cardiovascular Health

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Cardiovascular Interventions

For secondary and tertiary prevention purposes, heart medication and sometimes heart surgery is necessary. The below information, as with all topics in this course, is introductory in nature. That is, all surgical procedures and treatments are not listed, but a basic overview on some of the more common interventions is provided.

Heart Surgery

In many cases, tertiary prevention i.e. surgical procedures must be used to treat heart disorders. Different procedures are used depending upon the condition.

Angioplasty

Angioplasty is a procedure used to treat blood vessels that have accumulated atherosclerotic plaque.Please read angioplasty information at the Cardiology Channel, specifically the following three links: "Overview," "Balloon," and "Stents" (R). Travel to the Worldwide Initiative for Diabetes Education to read about coronary artery stenting OR click on the "View the following series as an animation" link to see the explanation in a more dynamic format (R). The University of Pennsylvania Health System has an online animation describing angioplasty (O--highly recommended, short animation).

Healthcentral.com (O) and HeartCenter Online (O--scroll down the page to "Illustrations") offer animations and audio description of the angioplasty process .

Open Heart and Coronary Bypass Surgeries

A type of open heart surgery is the coronary bypass procedure. In coronary bypass surgery, a blood vessel from another site of the body (often from the chest or the leg) is attached within the heart, in order to replace, or "bypass" the clogged coronary arteries. This procedure is explained quite well by the American Heart Association. (R) To view a short on-line movie on open heart surgery, visit the heart tour once again (O--contains a graphic video of real open heart surgery). Healthscout.com provides another opportunity to view an animation of coronary bypass surgery (O).

Transmyocardial Revascularization

In this procedure, a laser is used to improve blood flow to those parts of the heart muscle not receiving an adequate supply. Travel to a TMR description at the American Heart Association (R). PLC Medical Systems, Inc. provides an animation of transmyocardial revascularization (O--highly recommended but not required). Incidentally, a lesser invasive form of TMR, called "PMR," or percutaneous myocardial revascularization is another cardiovascular intervention, as presented from Hall-Garcia Cardiology Associates (O).

Medications

A variety of medications are used to reduce the likelihood of an acute coronary episode (such as a heart attack) for those patients at risk. These medications may help decrease blood pressure, decrease low density lipoprotein (LDL) levels in the blood, or serve in other capacities to improve an individual's heart disease risk. Choose two (2) of the below medication examples to learn how they work (R):

bullet Cholesterol Lowering MedicinesTexas Heart Institute
bullet Aspirin - iVillage (read the "Summary" of information)
bullet ACE Inhibitors - Texas Heart Institute
bullet Beta Blockers - Texas Heart Institute
bullet Diuretics - Texas Heart Institute
bullet Calcium Channel Blockers - Texas Heart Institute

In April 2008 Science Daily published an article regarding the latest research on the two-drug approach for treating hypertension (R).

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Educational Enrichment

Medscape: The JUPITER Study (you may need to log in; account is free)

Angioplasty.org

American Heart Association journal report on automated external defibrillators

The Heart Surgery Forum's Learning Center describes minimally invasive cardiac surgery

Heart Health Basics Library

The National Heart, Lung and Blood Institute provides pharmacological information on statins, bile acid resins, nicotinic acid and hormone replacement

Healingwell.com - offers a video learning center on cardiovascular health

Medline: Pacemakers and Implantable Defibrillators

The American Heart Association in 2008 is advocating for "Hands Only" CPR: calling 911 and administering chest compressions for a victim of cardiac arrest

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Last Revised: 1-14-10