What is the HHT gene?

What is the HHT gene?

Also known as Osler-Weber-Rendu disease, hereditary hemorrhagic telangiectasia (HHT) is a genetic disorder that you inherit from your parents. Its severity can vary greatly from person to person, even within the same family.

How do you test for hemorrhagic telangiectasia?

HHT can be diagnosed by performing genetic testing. Genetic testing can detect a gene mutation in about ¾ of families with signs of HHT, which if found can establish the diagnosis of HHT in individuals and families who are unsure about whether they have HHT.

What is the problem with QT prolongation?

Long QT syndrome (LQTS) is a heart rhythm condition that can potentially cause fast, chaotic heartbeats. These rapid heartbeats might trigger you to suddenly faint. Some people with the condition have seizures. In some severe cases, LQTS can cause sudden death.

How many types of long QT syndrome are there?

There are three major types of LTQS; namely LQTS 1, 2 and 3 which correspond to the first three genes and associated proteins (cardiac potassium and sodium channels) identified in the 1990s.

What foods to avoid when you have HHT?

Avoid certain foods. In some people, HHT nosebleeds are triggered when they consume blueberries, red wine, dark chocolate or spicy foods. You might want to keep a food diary to see if there’s any connection between what you eat and the severity of your nosebleeds.

Is hereditary hemorrhagic telangiectasia fatal?

HHT can be fatal if the AVM is in the patient’s brain, lungs or GI tract (stomach and intestines). AVMs in the GI tract do not cause pain or discomfort. Symptoms of GI bleeding are black or bloody stools and/or anemia.

How does hereditary hemorrhagic telangiectasia cause excessive bleeding?

Hereditary hemorrhagic telangiectasia (HHT) is an inherited disorder of the blood vessels that can cause excessive bleeding. People with HHT can develop abnormal blood vessels called arteriovenous malformations (AVMs) in several areas of the body. AVMs on the skin are called telangiectasias.

What to do if you have hemorrhagic telangiectasia?

Tranexamic acid (Cyklokapron, Lysteda) can help stop extreme bleeding in emergencies and may be useful if taken regularly to prevent bleeding. If you develop iron deficiency anemia, your doctor may also suggest intravenous iron replacement treatments, which usually are more effective than taking iron pills.

How does a doctor diagnose internal telangiectasia?

Diagnosis. Internal telangiectases or AVMs in your lungs, brain, spine, digestive tract or liver Family history of a parent, sibling or child with HHT Your doctor may diagnose HHT based on a physical examination, results of imaging tests and a family history. But some symptoms may not yet be apparent in children or young adults.

Is there a nasal spray for hereditary hemorrhagic telangiectasia?

Epub 2020 May 7 doi: 10.3174/ajnr.A6549. PMID: 32381546Free PMC Article Efficacy of TIMOLOL nasal spray as a treatment for epistaxis in hereditary hemorrhagic telangiectasia. A double-blind, randomized, placebo-controlled trial.