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Stroke | Cleveland Clin
https://my.clevelandclinic.org/health/diseases/17518-stroke

What is a stroke? A stroke, sometimes called a "brain attack," occurs when blood flow to an area in the brain is cut off. The brain cells, deprived of the oxygen and glucose needed to survive, die. If not caught early, permanent brain damage can result. How does a stroke occur? There are two types of stroke. Ischemic stroke is similar to a heart attack, except it occurs in the blood vessels of ...

Symptoms and causes - Mayo Clinic
https://www.mayoclinic.org/diseases-conditions/malignant-hyperthermia/symptoms-causes/syc-20353750?p=1

ew Malignant hyperthermia is a condition that triggers a severe reaction to certain drugs used as part of anesthesia for surgery. Without prompt treatment, the disease can be fatal. The genes that cause malignant hyperthermia are inherited. In most cases, no signs or symptoms of the condition exist until you are exposed to anesthesia. Treatments for the condition include medication and ice pack...

Symptoms and causes - Mayo Clinic
https://www.mayoclinic.org/diseases-conditions/hypoplastic-left-heart-syndrome/symptoms-causes/syc-20350599?p=1

ew Hypoplastic left heart syndrome is a complex and rare heart defect present at birth (congenital). The left side of the heart is critically underdeveloped in hypoplastic left heart syndrome. If your baby is born with hypoplastic left heart syndrome, the left side of the heart can't effectively pump blood to the body. Instead, the right side of the heart must pump blood to the lungs and to the...

Overview - Mayo Clinic
https://www.mayoclinic.org/diseases-conditions/atrial-tachycardia/cdc-20355258?p=1

tachycardia Atrial tachycardia is the least common type of supraventricular tachycardia. It's generally seen in children with underlying heart disorders such as congenital heart disease, particularly those who've had heart surgery. Atrial tachycardia may also be triggered by factors such as an infection or drug or alcohol use. For some people, atrial tachycardia increases during pregnancy or e...

Symptoms and causes - Mayo Clinic
https://www.mayoclinic.org/diseases-conditions/tricuspid-atresia/symptoms-causes/syc-20368392?p=1

ew Tricuspid atresia is a heart defect present at birth (congenital) in which a valve (tricuspid valve) between two of the heart's chambers isn't formed. Instead, there's solid tissue between the chambers, which restricts blood flow and causes the right lower heart chamber (ventricle) to be underdeveloped. A baby, child or adult with tricuspid atresia can't get enough oxygen through its body. P...

Diagnosis and treatment - Mayo Clinic
https://www.mayoclinic.org/diseases-conditions/mitral-valve-stenosis/diagnosis-treatment/drc-20353165?p=1

sis Your doctor will ask about your medical history and give you a physical examination that includes listening to your heart through a stethoscope. Mitral valve stenosis causes an abnormal heart sound, called a heart murmur. Your doctor also will listen to your lungs to check lung congestion — a buildup of fluid in your lungs — that can occur with mitral valve stenosis. Your doctor will then d...

Diagnosis and treatment - Mayo Clinic
https://www.mayoclinic.org/diseases-conditions/tetralogy-of-fallot/diagnosis-treatment/drc-20353482?p=1

sis Your or your baby's doctor might suspect tetralogy of Fallot if he or she notices you or your baby has blue-tinged skin or a heart murmur — an abnormal whooshing sound caused by turbulent blood flow. Your or your baby's cardiologist will conduct a physical examination and use several tests to confirm the diagnosis. Tests may include: Echocardiography. Echocardiograms use high-pitched sound ...

Symptoms and causes - Mayo Clinic
https://www.mayoclinic.org/diseases-conditions/atrial-flutter/symptoms-causes/syc-20352586?p=1

ew In atrial flutter, your heart's upper chambers (atria) beat too quickly. This causes the heart to beat in a fast, regular rhythm. Atrial flutter is a type of heart rhythm disorder (arrhythmia) caused by problems in your heart's electrical system. Atrial flutter is similar to atrial fibrillation, a common heart rhythm disorder. However, the rhythm in your atria is more organized and less chao...

Symptoms and causes - Mayo Clinic
https://www.mayoclinic.org/diseases-conditions/pulmonary-atresia/symptoms-causes/syc-20350727?p=1

ew Pulmonary atresia (uh-TREE-zhuh) is a heart defect present at birth (congenital) that's normally diagnosed within the first few hours or days of life. In pulmonary atresia, the valve that lets blood out of the heart to go to your baby's lungs (pulmonary valve) doesn't form correctly. Instead of opening and closing to allow blood to travel from the heart to the lungs, a solid sheet of tissue ...

Symptoms and causes - Mayo Clinic
https://www.mayoclinic.org/diseases-conditions/pulmonary-valve-stenosis/symptoms-causes/syc-20377034?p=1

ew Pulmonary valve stenosis is a condition in which a deformity on or near your pulmonary valve narrows the pulmonary valve opening and slows the blood flow. The pulmonary valve is located between the lower right heart chamber (right ventricle) and the pulmonary arteries. Adults occasionally have pulmonary valve stenosis as a complication of another illness, but mostly, pulmonary valve stenosis...

Symptoms and causes - Mayo Clinic
https://www.mayoclinic.org/diseases-conditions/congenital-myasthenic-syndrome/symptoms-causes/syc-20354754?p=1

ew Congenital myasthenic syndromes are rare hereditary (genetic) conditions resulting from a defect at the junction where your nerve stimulates muscle activity. That defect causes muscle weakness. Congenital myasthenic syndromes may affect your nerve cells (presynaptic), your muscle cells (postsynaptic), or the space between your nerve and muscle cells (synaptic). By Mayo Clinic Staff

Symptoms and causes - Mayo Clinic
https://www.mayoclinic.org/diseases-conditions/congenital-heart-defects-children/symptoms-causes/syc-20350074?p=1

ew If your child has a congenital heart defect, it means that your child was born with a problem in the structure of his or her heart. Some congenital heart defects in children are simple and don't need treatment. Other congenital heart defects in children are more complex and may require several surgeries performed over a period of several years. Learning about your child's congenital heart de...

Overview - Mayo Clinic
https://www.mayoclinic.org/diseases-conditions/double-outlet-right-ventricle/cdc-20389537?p=1

-outlet right ventricle In double-outlet right ventricle (DORV) — a heart condition present at birth (congenital) — the main artery that carries blood from the heart to the body (aorta) and the artery that directs blood from the heart to the lungs (pulmonary artery) are partially or completely connected to the lower right heart chamber (right ventricle). Sometimes these blood vessels are also r...

Symptoms and causes - Mayo Clinic
https://www.mayoclinic.org/diseases-conditions/adrenoleukodystrophy/symptoms-causes/syc-20369157?p=1

ew Adrenoleukodystrophy (uh-dree-noh-loo-koh-DIS-truh-fee) is a type of hereditary (genetic) condition that damages the membrane (myelin sheath) that insulates nerve cells in your brain. In adrenoleukodystrophy (ALD), your body can't break down very long-chain fatty acids (VLCFAs), causing saturated VLCFAs to build up in your brain, nervous system and adrenal gland. The most common type of ALD ...

Symptoms and causes - Mayo Clinic
https://www.mayoclinic.org/diseases-conditions/vesicoureteral-reflux/symptoms-causes/syc-20378819?p=1

ew Vesicoureteral (ves-ih-koe-yoo-REE-tur-ul) reflux is the abnormal flow of urine from your bladder back up the tubes (ureters) that connect your kidneys to your bladder. Normally, urine flows only down from your kidneys to your bladder. Vesicoureteral reflux is usually diagnosed in infants and children. The disorder increases the risk of urinary tract infections, which, if left untreated, can...

Diagnosis and treatment - Mayo Clinic
https://www.mayoclinic.org/diseases-conditions/congenital-heart-defects-children/diagnosis-treatment/drc-20350080?p=1

sis Your child's doctor may initially suspect a problem because he or she hears a heart murmur during a routine exam. A heart murmur is a sound that occurs when blood flows through the heart or blood vessels fast enough to make a sound that a doctor can hear with a stethoscope. Most heart murmurs are innocent, meaning that there is no heart defect and the murmur isn't dangerous to your child's ...

Diagnosis and treatment - Mayo Clinic
https://www.mayoclinic.org/diseases-conditions/hypospadias/diagnosis-treatment/drc-20355153?p=1

sis Your child's pediatrician can diagnose hypospadias based on a physical exam. He or she will likely refer you to a surgeon who specializes in genital and urinary conditions (pediatric urologist) for further evaluation. Medical centers with specialty teams can help you evaluate options and can provide expert treatment. When the opening of the urethra is abnormal and the testicles cannot be fe...

Diagnosis and treatment - Mayo Clinic
https://www.mayoclinic.org/diseases-conditions/spina-bifida/diagnosis-treatment/drc-20377865?p=1

sis If you're pregnant, you'll be offered prenatal screening tests to check for spina bifida and other birth defects. The tests aren't perfect. Some mothers who have positive blood tests have normal babies. Even if the results are negative, there's still a small chance that spina bifida is present. Talk to your doctor about prenatal testing, its risks and how you might handle the results. Blood...

Symptoms and causes - Mayo Clinic
https://www.mayoclinic.org/diseases-conditions/ebsteins-anomaly/symptoms-causes/syc-20352127?p=1

ew Ebstein anomaly is a rare heart defect that's present at birth (congenital). In Ebstein anomaly, your tricuspid valve — the valve between the two right heart chambers (right atrium and right ventricle) — doesn't work properly. The tricuspid valve sits lower than normal in the right ventricle, and the tricuspid valve's leaflets are abnormally formed. Blood may leak back through the valve, mak...

Care at Mayo Clinic - Mayo Clinic
https://www.mayoclinic.org/diseases-conditions/hypertrophic-cardiomyopathy/care-at-mayo-clinic/mac-20350208?p=1

rophic cardiomyopathy care at Mayo Clinic Your Mayo Clinic care team At Mayo Clinic, a multidisciplinary team of cardiologists, heart surgeons, heart rhythm specialists, geneticists, nurses and other specialists trained in treating hypertrophic cardiomyopathy collaborate to provide you with coordinated, comprehensive care. This means that you're not getting just one opinion — you benefit from t...