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Antiarrhythmic drug administration Hypoxia Ischaemia Atrial fibrillation Electrical shock administered during cardioversion Electrical shock caused by accidental contact with improperly grounded equipment Tachycardia. Presented By Johnny J. What is Supraventricular Tachycardia?.

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presented by johnny j

Antiarrhythmic drug administration Hypoxia Ischaemia Atrial fibrillationElectrical shock administered during cardioversionElectrical shock caused by accidental contact with improperly grounded equipment Tachycardia

Presented By Johnny J.

slide2

What is Supraventricular Tachycardia?

  • Supraventricular means “Coming from above the Antiarrhythmic drug administration
    • Hypoxia
    • Ischaemia
    • Atrial fibrillation
    • Electrical shock administered during cardioversion
    • Electrical shock caused by accidental contact with improperly grounded equipment
    • .” Tachycardia means “Fast Heart Rate.”
slide3

What is Supraventricular Tachycardia?

Supraventricular Tachycardia(SVT)

Paroxysmal Supraventricular Tachycardia(PSVT)

Paroxysmal Atrial Tachycardia(PAT)

slide4

Etiology [Cause]

Most Supraventricular Tachycardia results

from abnormal electrical connections in the

heart that short-circuit the normal electrical

system.

What causes these abnormal pathways is not clear

slide5

Etiology [Cause]

During an episode of Supraventricular Tachycardia (SVT), the heartbeat is controlled by the SA node (not The normal timer of the heart). Another part of the heart overrides this timer with faster impulses. The source or ‘trigger’ of the impulse in an SVT is somewhere above the ventricles, but the impulse then spreads to the ventricles. The heart then contracts faster than normal.

slide6

Etiology [Cause]

Normally, the heart’s electrical system precisely controls the rhythm and rate at which the heart beats. In SVT, abnormal electrical connections cause the heart to beat too fast. speeds up to rates of about 150 to 200 beats per minute and occasionally as high as 300. After some time, the heart returns to a normal rate of 60 – 100 beats per minute on it’s own or after treatment.

slide7

Symptoms:

Symptoms last as long as the episode of SVT lasts.

This may be seconds, minutes, hours, or rarely longer.

Symptoms Include the following:

  • Your pulse rate becomes 150 – 200 beats per minute.
  • Palpitations (Feeling your heart beat)
  • Dizziness, or Feeling Light Headed
  • You may become breathless
  • If you have angina, then an angina pain may be triggered by an
  • episode of SVT
  • You may have no symptoms, You may only be aware that your
  • heart is beating fast.
slide8

Treatment:

Many episodes of Supraventricular Tachycardia (SVT) soon stop and no treatment Is needed. If an episode of SVT does last a long time or is severe you may be admitted to a hospital to stop it.

Medicines which are given by injection into a vein will usually stop an SVT. [Adenosine is commonly used]

Adenosine works by blocking electrical impulses of the heart.

Verapamil is an alternative if adenosine is not advised. [People with asthma cannot have adenosine]

Electric Shock treatment is rarely needed to stop an episode of SVT.

slide9

Exams:

Electrocardiogram[EKG]

A test that measures the electrical signals that control the rhythm of your heartbeat.

slide10

Exams:

Electrocardiogram[EKG]

The EKG between episodes of SVT is usually normal. So, doing an ECG between episodes of symptoms may not be much help. However, if SVT is suspected, you may be asked to wear a small portable ECG recorder. Some types record an ECG continuously over 24 hours. Others are designed so that you can switch it on to record when you have symptoms. This is called a Holter Monitor

slide11

Exams:

Electrocardiogram[EKG]

An EKG of Supraventricular Tachycardia

slide12

Other Exams:

  • Ambulatory Electrocardiogram

records the electrical activity of your heart while you do your usual activities. Many heart problems become noticeable only during activity, such as exercise, eating, sex, stress, bowel movements, or even sleeping.

  • Echocardiogram

is a diagnostic test that uses ultrasound waves to produce an image of the heart muscle and the heart\'s valves.

  • Stress Test

is used to evaluate the heart and vascular system during exercise. It helps answer to two general questions: 1) Is there occult underlying heart disease that only becomes apparent when the heart is stressed by exercise? 2) If there is underlying heart disease, how severe is it? 

  • Cardiac Catheterization

Is a test that measures blood pressure within the heart and how much oxygen is in the blood. It\'s also used to get information about the pumping ability of the heart muscle.

  • Electrophysiological Study

is a test that maps the electrical conduction system in the heart.

slide13

Once episodes of Supraventricular tachycardia begin, they generally occur again. These frequently stop spontaneously or with simple maneuvers but may require taking medications daily if they persist. Medication treatment typically includes beta-blockers, & calcium channel blockers.

slide14

Prevention

Prevention

  • Reduce Stress in your life.
  • Exercise regularly and maintain a healthy lifestyle.
  • Eliminate caffeine and other stimulants and alcohol.
  • Comply with medications and medical advice.
  • Learn more about this condition.
slide15

Presented By

Johnny Juarez

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