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(LQTS) is an infrequent, hereditary disorder of the heart's electrical rhythm that can occur in otherwise healthy people. It usually affects children or young adults. Studies of otherwise healthy people with LQTS indicate that they had at least one episode of fainting by the age of 10. The majority also had a family member with a long Q-T interval.
When the heart contracts, it emits an electrical signal. This signal can be recorded on an electrocardiogram (ECG) and produces a characteristic waveform. The different parts of this waveform are designated by letters - P, Q, R, S and T. The Q-T interval represents the time for electrical activation and inactivation of the ventricles, the lower chambers of the heart. A doctor can measure the time it takes for the Q-T interval to occur (in fractions of a second), and can tell if it occurs in a normal amount of time. If it takes longer than normal, it's called a prolonged Q-T interval.
What are the symptoms of LQTS?
People with LQTS may not have any symptoms. People who do have symptoms often exhibit fainting (syncope) and abnormal rate and/or rhythm of the heartbeat (arrhythmia). People with this syndrome may show prolongation of the Q-T interval during physical exercise, intense emotion (such as fright, anger or pain) or when startled by a noise. Some arrhythmias are potentially fatal, causing sudden death. In one type of inherited LQTS, the person may also become deaf.
People with LQTS don't necessarily have a prolonged Q-T interval all the time. At the time that they have an electrocardiogram (such as during a routine physical examination), the Q-T interval may actually be normal. Alternatively, some healthy young people may not have a routine ECG, and LQTS may be suspected because of their family history or because of unexplained fainting episodes. In any family where repeated episodes of fainting or a history of sudden death exists, an investigation of the cause, including LQTS, should be undertaken.
What else can I help you with?
What is normal pulse for a 63 year old women?
What is the normal heart beat rate for a 70 year old female?
How many times does your heart beat in a year?
At a heart rate of 60 to 80 BPM, your heart would beat 31 to 42 million times a year.
Is 78 beats per minute a normal heart beat?
A normal heart rate is between 60-100 BPM. So a heart rate of 80 BPM is fine for a 23 year old
What is normal pulse rate for 2 year old sleeping?
It depeneds but it definatley decreases because you are relaxed and you have a steady heart beat.
How many time does your heart beat in one year?
That really depends on your health, for example an asmatic person would have a hugely varied heart beat count to someone in perfect health
What are the normal results of myocardial resection?
Anywhere from 5-25% of post-heart attack patients do not survive open-heart surgery. The survivors have a 90% arrhythmia-free one-year survival rate, (arrthymia is an irregular heart beat).
What is the normal heart beat range of sixteen year old girl?
The normal heart beat range for a 16 year old girl is around 80 beats per minute. This can fluctuate from 60 to 100 beats per minute and still be in normal range.
Is it normal for a 6 year old heart beat to be faster when having an asthma symptom?
no
What is normal pulse for a 63 year old women?
What is the normal heart beat rate for a 70 year old female?
What is the normal heart rate for fifty three year old woman?
for a 53 yr old woman heart beat 70--75
What is normal heart beat for 54 year old male?
No, it is not. The range for normal is 60-100.
How many times should a 7 year old heart beat in a minute?
A 7 year olds heart should beat about 110 times per minute. This can be considered normal, but around 80 beats per minute is fine, too.
Is 99 beats per minute normal for a 22 year old male. this is a resting heart beat.?
Not really. You should be around sixty.
How many heart beats is normal for a sixteen year old male?
It can vary depending on what kind of shape you are in. Usually the better shape you are in the lower your hear beat. A 'normal' resting heart beat can be 55 for a runner or 80 for someone with a few extra pounds. Anywhere form 55 to 85 can be 'normal' sometimes up to 100 can be normal for someone who does very little physical activity.
What is normal 3 month old heart rate?
It depends. Children often have second to second variations in their heartbeats due to respiratory affects on the centers that control heart rate. Sinus arrythmia is an example of this normal physiologic "irregular heart rate". There certainly are many much more rare and dangerous causes of an irregular heart rate but in an asymptomatic 8 year old these are extremely unlikely. I would contact your pediatrician and discuss with him/her exactly what you mean by "irregular heart rate".
What can cause a heart beat of 54 in a 17 year old female with normal Stress Echo?
It means you are physically fit! Average is 60 - 80.
How many times does your heart beat in a year?
At a heart rate of 60 to 80 BPM, your heart would beat 31 to 42 million times a year.
