Hereditary Hemorrhagic Telangiectasia

Hereditary hemorrhagic telangiectasia is a rare genetic (runs in families) disorder that affects blood vessels. It often causes internal bleeding, and it makes it harder for oxygen to get to the body’s tissues. HHT may cause blood vessels to form without capillaries (tiny vessels between arteries and veins), so blood passes directly from arteries to veins. This is a condition known as arteriovenous malformation (AVM), and it commonly occurs in the lungs, where it is called pulmonary AVM. HHT also can lead to a condition called telangiectasia (spider veins), in which enlarged or broken blood vessels in the skin appear as delicate red or purplish spots on the legs, hands, fingertips, face, lips, lining of the mouth, or nose.

HHT can affect people of all ages, genders, and racial and ethnic groups, and some of the problems it creates can be serious or even life-threatening. The symptoms may not be obvious, so genetic testing is needed to accurately diagnose HHT. Nosebleeds are the most common symptom, and bleeding within the stomach or intestines is another possible sign of HHT. There is no cure, but effective treatments are available. Therapy for HHT usually involves treating the symptoms, including controlling bleeding and anemia (low levels of red blood cells in the blood) and preventing complications from abnormal artery-vein connections in the brain, spine, lungs, and other areas of the body.

The UAB Division of Vascular and Neuro-Interventional Radiology operates an HHT Clinic at The Kirklin Clinic of UAB Hospital. It provides complete care from physicians in many different medical specialties who are experts in HHT, and it serves patients and their families from childhood through adulthood. UAB is in the process of obtaining a Center of Excellence designation from the Cure HHT Foundation, which will provide important resources such as participating in HHT clinical research trials, access to a network for discussing complex HHT cases with expert physicians around the world, and outreach opportunities.

The clinic’s specialists include an interventional neuroradiologist who helps manage HHT-related problems that may develop in the brain and spine, such as AVM. Other specialists manage pulmonary AVM, nosebleeds, heart problems, bleeding from the gut, and anemia. To make an appointment with the HHT Clinic, please call 205-801-4647 or 205-801-7492.

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Hereditary Hemorrhagic Telangiectasia
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