M.B.
my son was recently diagnosed with HCM another heart condition that is inherited. I have been incontact with american heart association and met a couple others in my community that have children with heart conditons. Check the website American heart association and type in Long Q-T syndrom. Two of the ladies i met have this.It was discovered one one of the sisters son's fainted, they took him to er and the dr said it was a fluke thing and sent him home, he was swimming when it happened, The very next time he was swimming it happened again, he was taken to the hospital and Careflighted to Cooks, He was then diagonosed with Long Q-T syndrom. The entire family was tested. Both sister's have 2 children, one tested to have it and one did not have it, in both families, both sisters hace it and their mom as well. It is very important for all family members to be tested. One of these children that have it has a defibulator, the other does not. They both take beta blockers to slow the rate. Below is from the AHA website. Hopethis helps.
disorder of the heart's electrical rhythm that can occur in otherwise healthy people. It usually affects children or young adults.
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.
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. 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.