Long qt Syndrome Information

Diseases

Arthritis
Asthma
Backpain
Diabetes
Heart Attack
High Blood Pressure
Headache
Migraine
Depression
Disorders

General Ailments
Blood Disorders
Digestive Disorders
Gastroenterology Disorders
Respiratory Disorders
Fevers
Gynacological Conditions
Cardiology Diseases
Neurology Diseases
Cardiovascular Diseases
Medication

Medication Library: Information listing all medication & drugs in Albhabatical Order. Learn More..
Mental Health

Your complete mental health care guide, all information on metal disorders. Learn More..
Home Remedies

Treatment and Cure of all ailments and health disorders by natural homemade remedies by experts. Learn More..
Health Articles

Health & Executive
Life & Health
Health & Happiness
Heart Health
Lung Health
Dental Health
Eye Care
Stress & Strain
Your Health Diet
Fitness & Exercise
Planning For Well-Being

 

Home :: Diseases :: Long qt Syndrome
 

Long qt Syndrome - Long qt Syndrome Information

Congenital long QT syndrome is an uncommon disease that is characterized by recurrent syncope, a long QT interval (usually 0.5–0.7 second), documented ventricular arrhythmias, and sudden death. It may occur in the presence (Jervell syndrome, Lange-Nielsen syndrome) or absence (Romano-Ward syndrome) of congenital deafness. Inheritance may be autosomal recessive or autosomal dominant (Romano-Ward). Specific genetic mutations affecting membrane potassium and sodium channels have been identified and help delineate the mechanisms of susceptibility to arrhythmia.

Blockers are the most effective therapy for congenital long QT syndrome and are often used in conjunction with permanent pacemakers, since low heart rates predispose to ventricular arrhythmias. ICDs are effective in patients who continue to have life-threatening ventricular arrhythmias while taking -blockers. Refractory acute arrhythmic episodes may be treated by local anesthetic block of the left stellate ganglion, and recurrent episodes can be treated by resection of this ganglion as well as of the first three to five thoracic ganglia.

Acquired long QT interval secondary to use of antiarrhythmic agents or antidepressant drugs, electrolyte abnormalities, myocardial ischemia, or significant bradycardia may result in ventricular tachycardia (particularly torsade de pointes, ie, twisting about the baseline into varying QRS morphology). Notably, many drugs that are in some settings effective for the treatment of ventricular arrhythmias prolong the QT interval. Prudence dictates that drug therapy that prolongs the QT interval beyond 500 ms be discontinued.



 

Health Home Health Blog Health Resources Policy & Terms Advertise With Us Contact Us

Your feedback and queries are greatly appreciated, keep them coming here..
© www.diseasesatoz.com All Rights Reserved.


Disclaimer: All information on www.diseasesatoz.com is for educational purposes only. It is not a substitute for professional medical advice. For specific medical advice, diagnoses, and treatment, please consult your doctor.