These lesions may bleed intermittently, which is rarely significant enough to be noticed (in the form of bloody vomiting or black stool), but can eventually lead to depletion of iron in the body, resulting in iron-deficiency anemia. Arteriovenous malformation
Arteriovenous malformations (AVMs, larger vascular malformations) occur in larger organs, predominantly the lungs (pulmonary AVMs) (50%), liver (30–70%) and the brain (cerebral AVMs, 10%), with a very small proportion (<1%) of AVMs in the spinal cord.Vascular malformations in the lungs may cause a number of problems. The lungs normally "filter out" bacteria and blood clots from the bloodstream; AVMs bypass the capillary network of the lungs and allow these to migrate to the brain, where bacteria may cause a brain abscess and blood clots may lead to stroke. HHT is the most common cause of lung AVMs: out of all people found to have lung AVMs, 70–80% are due to HHT. Bleeding from lung AVMs is relatively unusual, but may cause hemoptysis (coughing up blood) or hemothorax (blood accumulating in the chest cavity). Large vascular malformations in the lung allow oxygen-depleted blood from the right ventricle to bypass the alveoli, meaning that this blood does not have an opportunity to absorb fresh oxygen. This may lead to breathlessness. Large AVMs may lead to platypnea, difficulty in breathing that is more marked when sitting up compared to lying down; this probably reflects changes in blood flow associated with positioning.
Amlodipine/benazepril, sold under the brand name Lotrel among others, is a medication used to treat high blood pressure. It is a combination of amlodipine, a calcium channel blocker and benazepril, an angiotensin converting enzyme inhibitor. It may be used if a single agent is not sufficient. It is taken by mouth.Common side effects include cough, dizziness, and swelling. Serious side effects may include angioedema, myocardial infarction, high blood potassium, liver problems, and low blood pressure. Use in pregnancy is not recommended. Amlodipine works by increasing the size of arteries while benazepril works by decreasing renin-angiotensin-aldosterone system activity.The combination was approved for medical use in the United States in 1995. It is available as a generic medication. In 2019, it was the 213th most commonly prescribed medication in the United States, with more than 2 million prescriptions. Medical uses
It is used to treat high blood pressure. It is not a first line treatment. References
External links
"Amlodipine mixture with Benazepril". Drug Information Portal. U.S. National Library of Medicine.