Tachycardia
is a condition that makes the ticker beat more than 100 times per minute. There
are three types of it: Supraventricular, Ventricular and Sinus tachycardia.
Causes:
Supraventricular
tachycardia mostly
affects people who smoke, drink alcohol in excess, or have a lot of caffeine.
It’s also linked to heart attacks in some cases and is more common in children
and women. Sinus tachycardia apart from strenuous exercise, a fever, fear, stress, anxiety,
certain medications, and street drugs- can also be triggered by anemia, an overactive thyroid, or damage from
a heart attack or heart failure. Last, but not the least the ventricular type
is tied to more serious ticker disorders, such as lack of oxygen, and could
also be associated with conditions like sarcoidosis that causes the skin and
other body tissues to swell.
Tips to
Slow Down a Fast Heartbeat:
Medication- Antiarrhythmic drugs restore a
normal heartbeat which can be administered orally or by injection. Sometimes it
is required for an individual to take more than one antiarrhythmic drug.
Cardioversion- Patches or paddles are used to
deliver an electric shock to the ticker which restores the normal rhythm by
affecting the electrical impulses in the ticker. Cardioversion is carried out
in a hospital.
Vagal
Maneuvers- The simple
maneuvers stimulate the vagus nerve (it helps regulate our heartbeat),
sometimes resulting in slowed conduction of electrical impulses through the
atrioventricular (AV) node of the heart. Coughing, heaving (as if you were having a bowel movement)
and placing an ice pack on the person's face are maneuvers that affect the
nerve.
Prevention:
Learn more
about measures that can prevent a heartbeat becoming too fast or escalating
into a health problem.
Medications- Anti-arrhythmic medications when
taken regularly can prevent tachycardia. In combination with antiarrhythmics, doctors may
prescribe other medications, such as channel blockers, such as diltiazem
(Cardizem) and verapamil (Calan), or beta-blockers, such as propranolol
(Inderal) and esmolol (Brevibloc).
Implantable
cardioverter defibrillator (ICD)- The ICD detects any abnormal heartbeat and delivers electric
shocks to restore normal rhythm. This device is surgically implanted into the
chest, it continually monitors the heartbeat.
Surgery- Surgery is needed sometimes to
remove a section of tissue which involves the surgeon creating a pattern of
scar tissue which is a bad conductor of electricity. Only when other therapies
have not been effective, or if the person has another heart disorder that this
procedure is used.
Radiofrequency
Catheter Ablation-
Through the blood vessels, the catheters with electrodes at the ends enter the
ticker. The electrodes are heated to ablate, or damage the small sections of
the ticker responsible for the abnormal heartbeat.
Symptoms:
Regardless
of the type of tachycardia you have, you may feel chest pain, heart
palpitations, shortness of breath, dizziness and lightheadedness. You could
also become unconscious or go into cardiac arrest in extreme cases. Sometimes a
fast heart rate causes no symptoms at all.
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