Jul 19, 2024 · Long QT syndrome (LQTS) is a heart rhythm disorder that causes fast, chaotic heartbeats. The irregular heartbeats can be life-threatening. LQTS affects the electrical signals that travel through the heart and cause it to beat.

Learn about the T-wave, physiology, normal appearance and abnormal T-waves (inverted / negative, flat, large or hyperacute), with emphasis on ECG features and clinical implications.

Oct 8, 2024 · A review of normal T wave morphology as well common abnormalities including peaked, hyperacute, inverted, biphasic, 'camel hump' and flattened T waves

Jul 19, 2024 · The time between the start of the Q wave and the end of the T wave is called the QT interval. This is how long it takes for the heart to squeeze and refill with blood before it beats again. If the interval takes longer than usual to happen, it's called a prolonged QT interval.

For example, abnormalities such as peaked or elongated T waves can indicate conditions ranging from myocardial infarction to electrolyte imbalances. Normal T waves are typically upright and generally follow the same direction as the QRS complexes.

Mar 20, 2023 · Long QT syndrome is a problem with the electrical system in your heart taking too long to recharge. This issue can lead to a life-threatening type of abnormal heart rhythm. People can inherit or acquire long QT syndrome. Most people take medication for long QT. Others may need a device or surgery to lower their risk of abnormal heart rhythms.

On an electrocardiogram (ECG), each heartbeat is mapped with five different waves, namely, P, Q, R, S, and T, wherein alphabets Q through T correspond to the heart cells’ recharging or repolarizing after a muscle contraction. A prolonged QT interval indicates an …

Dec 22, 2023 · QT prolongation occurs when the heart muscle takes longer to contract and relax than usual. It can affect heart rhythms and lead to sudden cardiac arrest. The heart is a muscle that contracts...

May 23, 2024 · Long QT syndrome (LQTS) is an uncommon disorder where your heart takes longer than usual to recover after each beat. It affects one in 5,000 people and can raise the risk of “torsades de...

Long QT syndrome (LQTS) is manifest when a long QT interval induces ventricular arrhythmias. Figure 1. The QT interval on the ECG. The QT interval is inversely related to heart rate. As the heart rate increases, the QT interval decreases and vice versa.