Understanding Short QT Syndrome (SQTS) and its impact

Short QT Syndrome (SQTS) is a rare heart rhythm disorder. Learn about its causes, symptoms, treatments, and expert care for better heart health.

11 September, 2025

Short QT Syndrome (SQTS) is a life-threatening heart rhythm disorder. Discover its causes, symptoms, and treatments to protect your heart and stay healthy.

What are the main causes of Short QT Syndrome (SQTS)?

  • Genetic mutations in potassium or calcium channels disrupt electrical signaling, leading to abnormally fast heart repolarization and creating the condition known as SQTS.
  • Family history of sudden cardiac death significantly increases the likelihood of inheriting genetic variations responsible for Short QT Syndrome in susceptible individuals.
  • Underlying electrolyte imbalances, such as abnormal calcium or potassium levels, may trigger or worsen the rapid heart repolarization seen in Short QT Syndrome.
    Short QT Syndrome Diagnosis confirms rare heart disorder

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Key symptoms of Short QT Syndrome (SQTS) to watch for

  • Persistent heart palpitations or irregular heartbeats often appear in affected individuals, making SQTS noticeable during rest or physical activity.
  • Frequent fainting episodes or unexplained dizziness may occur due to unstable heart rhythms associated with Short QT Syndrome.
  • Increased risk of sudden cardiac arrest, especially in young individuals, is a hallmark symptom highlighting the severity of SQTS.

How can you prevent Short QT Syndrome (SQTS) effectively?

  • Regular cardiac checkups with an electrophysiologist can detect early abnormalities and provide timely management of Short QT Syndrome.
  • Maintaining balanced electrolyte levels through diet and medical guidance can help reduce the risk of worsening heart repolarization issues.
  • Use of prescribed medications or implantation of a cardioverter-defibrillator (ICD) offers proven long-term prevention of life-threatening SQTS complications.
    Short QT Syndrome Symptoms show dangerous heart rhythm

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Images visual examples of Short QT Syndrome (SQTS)

Short QT Syndrome is a rare cardiac disorder characterized by abnormally fast electrical repolarization in the heart. Images typically show shortened QT intervals on an ECG, helping doctors confirm diagnosis.

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Managing Short QT Syndrome (SQTS) requires awareness, timely diagnosis, and expert care. Learn how prevention and treatment can safeguard your heart health.