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Introduction – Antiarrhythmic Drugs

by Pravin Shukle, MD
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    Welcome to pharmacology by Lecturio. I'm Dr. Pravin J Shukle, and we are going to be talking about heart failure management and angina management. Let's take a look at this diagram. Angina literally means pain in the chest. Typical symptoms of angina are caused by narrowing of blood vessels. Be very aware that angina doesn't necessarily mean that the blood vessel is completely blocked off, it just means that the blood flow is restricted through a process of atherosclerosis. Heart failure is when the heart is not pumping enough blood to do its job. You can have diastolic heart failure and systolic heart failure. Diastolic heart failure is the first stage of generalized heart failure. What people don't realize about heart failure and how the heart works is that the energy consuming cycle of the heart is actually when it opens up. That's a hard concept to understand. I want you to think about a bow and arrow. We put energy into the bow as we pull back on it. And then at the right moment, we let go off the string, and it pushes the arrow forward. The heart works the same way. We put energy into the heart as it opens up. It waits for a signal, and then it contracts, almost like an elastic recoil. Distolic dysfunction means that we don't have enough strength to open up the arrow, either quickly enough, or enough in terms of volume. Angina specifically is a reduced blood flow because of narrowing of the blood vessels of the heart. We put these two diseases together because the treatment of both conditions often overlap. Let's start with drugs used in angina. Angina can be treated with vasodilators. These vasodilators can be nitrates or calcium channel blockers like verapamil. There are many types...

    About the Lecture

    The lecture Introduction – Antiarrhythmic Drugs by Pravin Shukle, MD is from the course Cardiovascular Pharmacology.


    Included Quiz Questions

    1. A Group 1 anti-arrhythmia medication.
    2. A Group 2 anti-arrhythmia medication.
    3. A Group 3 anti-arrhythmia medication.
    4. A Group 4 anti-arrhythmia medication.
    5. A Group 5 anti-arrhythmia medication.
    1. A Group 4 anti-arrhythmia medication.
    2. A Group 1 anti-arrhythmia medication.
    3. A Group 2 anti-arrhythmia medication.
    4. A Group 3 anti-arrhythmia medication.
    5. A Group 5 anti-arrhythmia medication.
    1. A Group 2 anti-arrhythmia medication.
    2. A Group 1 anti-arrhythmia medication.
    3. A Group 3 anti-arrhythmia medication.
    4. A Group 4 anti-arrhythmia medication.
    5. A Group 5 anti-arrhythmia medication.
    1. A Group 3 anti-arrhythmia medication.
    2. A Group 1 anti-arrhythmia medication.
    3. A Group 2 anti-arrhythmia medication.
    4. A Group 4 anti-arrhythmia medication.
    5. A Group 5 anti-arrhythmia medication.
    1. A Group 5 anti-arrhythmia medication.
    2. A Group 1 anti-arrhythmia medication.
    3. A Group 2 anti-arrhythmia medication.
    4. A Group 3 anti-arrhythmia medication.
    5. A Group 4 anti-arrhythmia medication.
    1. Potassium channel blockers.
    2. Sodium channel blockers.
    3. Calcium channel blockers.
    4. Beta blockers.

    Author of lecture Introduction – Antiarrhythmic Drugs

     Pravin Shukle, MD

    Pravin Shukle, MD


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