atrial
Atrial Fibrillation
What is
atrial fibrillation (AFib)?
Atrial fibrillation, also known as AFib or AF, is one of the most common types of arrhythmias. Arrhythmias are problems with the rate or rhythm of your heartbeat. They can cause your heart to beat too slowly, too fast, or in an irregular way.
If you have AFib, your heart beats irregularly and sometimes much faster than normal. Also, your heart's upper and lower chambers do not work together as they should. When this happens, the lower chambers do not fill completely or pump enough blood to your lungs and body. This can cause symptoms such as dizziness, fatigue, and a pounding heartbeat.
AFib may happen in brief episodes, or it may be a permanent condition. It's very important to treat it, since AFib can put you at risk for stroke and other heart conditions.
What causes
atrial fibrillation (AFib)?
AFib is most often caused by changes to the heart's tissue or the electrical signaling that helps the heartbeat. These changes can happen due to different conditions and factors, such as high blood pressure, coronary artery disease, congenital heart defects, infections, and aging. Sometimes the cause is unknown.
Who is more likely to develop
atrial fibrillation (AFib)?
Anyone can develop AFib, but there are certain things that raise your risk for it:
- Aging. The risk of atrial fibrillation increases as you get older, especially when you are over age 65.
- Family history and genetics. AFib can run in families. So can heart disease, which raises your risk of AFib.
- Some lifestyle choices. Your risk is higher if you drink a lot of alcohol, use certain illegal drugs such as cocaine and methamphetamines, or smoke.
- Having certain health conditions, such as:
- High blood pressure
- Diabetes
- Heart failure
- Heart valve diseases
- Obesity
- Hyperthyroidism
- Chronic kidney disease
- COPD and other lung diseases
- Sleep apnea
- Race. AFib is more common in people with European ancestry.
- Recent surgery. You may be at risk of atrial fibrillation in the early days and weeks after surgery on your heart, lungs, or esophagus.
What are the symptoms of
atrial fibrillation (AFib)?
Some people who have AFib don't have any symptoms and don't know they have it. If you do have symptoms, you may only notice them once in a while. Or you may have symptoms that are more frequent. And in some cases, the symptoms might be severe. If you have heart disease, you are more likely to notice your symptoms. And those symptoms could get worse if your heart disease gets worse.
The symptoms of AFib can include:
- Extreme fatigue, which is the most common symptom
- Heart palpitations (the feeling that your heart is skipping a beat, fluttering, pounding, or beating too hard or too fast)
- Trouble breathing, especially when lying down or when exercising
- Chest pain
- Dizziness or fainting
- Low blood pressure
What other problems can AFib cause?
If AFib is not treated, it can lead to serious health problems (complications) such as:
- Stroke
- Heart failure
- Blood clots
- Sudden cardiac arrest (SCA)
- Cognitive impairment and dementia
To help prevent these problems, it's important to contact your health care provider if you are having symptoms. If you do have AFib, the sooner you are diagnosed and treated, the better.
How is
atrial fibrillation (AFib) diagnosed?
To find out if you have AFib, your provider:
- Will ask about your medical history, including your symptoms, lifestyle, and any other health conditions you may have
- Will ask about your family history, to find out if you have relatives who have or had AFib
- Will do a physical exam
- May order blood tests
- Will likely order heart tests, such as an electrocardiogram (also called an EKG or ECG) and echocardiogram
- May ask you to wear a heart monitor device that records your heart's electrical activity
What are the treatments for
atrial fibrillation (AFib)?
The treatments for AFib may include:
- Blood thinner medicines that help prevent blood clots from forming.
- Medicines to control your heart's rhythm and rate.
- Following heart-healthy lifestyle changes, such as:
- Following a heart-healthy eating plan that limits saturated fats, salt, and cholesterol. An example is the DASH eating plan.
- Limiting or avoiding alcohol, because it can increase your heart rate.
- Aiming for a healthy weight.
- Getting regular physical activity.
- Managing stress.
- Quitting smoking.
- Procedures such as:
- Electrical cardioversion, which restores your heart rhythm using low-energy shocks to your heart.
- Catheter ablation, which scars the tissue that is causing the arrhythmia. The scar tissue blocks the abnormal heart signals.
- Surgeries such as:
- Surgery to put in a pacemaker to help control the arrhythmia.
- A Maze procedure, which creates scar tissue in a maze-like pattern in certain parts of the heart.
- Left atrial appendage closure, a surgery on a small sac in the muscle wall of your left atrium (the upper left chamber of your heart). It helps prevent blood clots and can reduce your risk of stroke. This surgery is for people who are not able to take blood thinners.
Can
atrial fibrillation (AFib) be prevented?
There are steps you can take to help lower your risk of atrial fibrillation, such as:
- Making heart-healthy lifestyle changes:
- Following a heart-healthy eating plan
- Limiting or avoiding alcohol
- Aiming for a healthy weight
- Getting regular physical activity
- Managing stress
- Not smoking
- Avoiding illegal drugs, such as cocaine and methamphetamines
- Taking antiarrhythmic medicine (medicine to treat arrhythmia) if you are having heart surgery
- Treating any health conditions that could raise your risk of AFib
NIH: National Heart, Lung, and Blood Institute
Arrhythmia
An arrhythmia is a problem with the rate or rhythm of your heartbeat. It means that your heart beats too quickly, too slowly, or with an irregular pattern. When the heart beats faster than normal, it is called tachycardia. When the heart beats too slowly, it is called bradycardia. The most common type of arrhythmia is atrial fibrillation, which causes an irregular and fast heart beat.
Many factors can affect your heart's rhythm, such as having had a heart attack, smoking, congenital heart defects, and stress. Some substances or medicines may also cause arrhythmias.
Symptoms of arrhythmias include:
- Fast or slow heart beat
- Skipping beats
- Lightheadedness or dizziness
- Chest pain
- Shortness of breath
- Sweating
Your doctor can run tests to find out if you have an arrhythmia. Treatment to restore a normal heart rhythm may include medicines, an implantable cardioverter-defibrillator (ICD) or pacemaker, or sometimes surgery.
NIH: National Heart, Lung, and Blood Institute
Congenital Heart Defects
What are congenital heart defects?
Congenital heart defects (CHDs) are problems with the structure of the heart. "Congenital" means that that the problems are present at birth. These defects happen when a baby's heart doesn't develop normally during pregnancy. Congenital heart defects are the most common type of birth defect.
Congenital heart defects can change the way the heart pumps blood. They may make blood flow too slowly, go the wrong way, or block it completely.
There are many types of congenital heart defects. They can happen in one or more parts of the heart. The most common types are:
- Septal defects ("hole in the heart") - openings in the wall between the left and right sides of the heart
- Heart valve defects - problems with the valves that control the flow of blood through the heart
- Defects in the large blood vessels that carry blood in and out of the heart
Congenital heart defects can range from very mild problems that never need treatment to life-threatening problems at birth. The most serious congenital heart defects are called critical congenital heart disease. Babies with these defects usually need surgery in the first year of life. But the symptoms of milder heart defects may not show up until childhood or adulthood.
What causes congenital heart defects?
Researchers often don't know what causes congenital heart defects. They do know that changes in a baby's genes sometimes cause a heart defect. The changed genes may come from the parents, or the changes may happen during pregnancy.
Who is more likely to have a baby with a congenital heart defect?
Several things may increase the chance that your baby has a congenital heart defect, such as:
- Your health before and during pregnancy, including:
- Having diabetes before pregnancy or developing it in the first 3 months of pregnancy (diabetes that develops later in pregnancy isn't a major risk for heart defects). Carefully controlling your blood sugar before and during pregnancy can lower your baby's risk of congenital heart defects.
- Having phenylketonuria (PKU), a rare inherited disorder that affects how the body uses a protein in foods. If you have PKU, eating a low-protein diet before getting pregnant can lower your baby's risk of having a congenital heart defect.
- Having rubella (German measles) during pregnancy.
- Your contact with certain substances during pregnancy, including:
- Smoking or secondhand smoke (breathing smoke from another smoker).
- Certain medicines, such as angiotensin-converting (ACE) inhibitors for high blood pressure and retinoic acids for acne. If you're pregnant or plan to get pregnant, talk with your health care provider about all the medicines you take.
- Your family history and genetics. In most cases, congenital heart defects don't run in families. But your chance of having a baby with a congenital heart defect does go up if you or the other parent has a congenital heart defect, or if you already have a child with a congenital heart defect.
What are the symptoms of congenital heart defects?
Congenital heart defects don't cause pain. The signs and symptoms are different, depending on the type and number of defects and how serious they are.
Common signs and symptoms of congenital heart defects include:
- Cyanosis - a bluish color to the skin, lips, and fingernails. It happens when there isn't enough oxygen in the blood.
- Fatigue - your baby may be unusually sleepy and may become very tired during feedings.
- Poor blood flow.
- Fast or difficult breathing.
- Heart murmur - an unusual sound between heartbeats.
What other problems do congenital heart defects cause?
Congenital heart defects don't always cause other problems. If they do, which problems you have would depend on the type and number of defects and how serious the defects are.
Children with congenital heart defects are more likely to:
- Be smaller than other children
- Have problems or delays in mental, and emotional growth, and behavior, such as:
- Speech and language problems
- Attention deficit hyperactivity disorder (ADHD)
People with congenital heart defects may develop other health conditions, including:
- Endocarditis - an infection of lining of the heart and valves
- Arrhythmia - a problem with the rate or rhythm of your heartbeat
- Heart failure - when your heart can't pump enough blood to the body
- Pulmonary hypertension - high blood pressure in your lungs
- Kidney and liver disease
How are congenital heart defects diagnosed?
- Before a baby is born, your provider may use ultrasound pictures of the baby's heart to look for heart defects. This is called a fetal echocardiogram. It's done between weeks 18 and 22 of pregnancy.
- During the first few days after birth, all newborns are checked for congenital heart defects. A pulse oximeter is clipped to your baby's hands or feet to measure blood oxygen. If it shows low levels of blood oxygen, more tests will be needed to find out if your baby has a heart defect.
- To diagnose congenital heart defects in babies, children, and adults, a provider may use many tools, including:
- A physical exam.
- Certain heart tests to see how the heart is working.
- Genetic testing to see if certain gene problems caused the defect.
What are the treatments for congenital heart defects?
Treatment depends on the type of congenital heart defect and how serious it is. Possible treatments include:
- Cardiac catheterization to repair simple defects, such as a small hole in the inside wall of the heart. A catheterization uses a thin tube guided through a vein and into the heart.
- Heart surgery may be needed to:
- Repair defects in the heart and blood vessels.
- Repair or replace a heart valve.
- Place a device in the chest to help the heart pump blood.
- Do a heart transplant.
- Medicine is often used if your baby has a specific type of congenital heart defect called patent ductus arteriosus.
All children and adults who have congenital heart defects need regular follow-up care from a cardiologist (a doctor who specializes in heart diseases) throughout their life, even if their defect was repaired.
Some people may need several heart surgeries or catheterizations over the years. They may also need to take medicines to help their hearts work as well as possible.
NIH: National Heart, Lung, and Blood Institute
Stroke
What is a stroke?
A stroke happens when there is a loss of blood flow to part of the brain. Your brain cells cannot get the oxygen and nutrients they need from blood, and they start to die within a few minutes. This can cause lasting brain damage, long-term disability, or even death.
If you think that you or someone else is having a stroke, call 911 right away. Immediate treatment may save someone's life and increase the chances for successful rehabilitation and recovery.
What are the types of stroke?
There are two types of stroke:
- Ischemic stroke is caused by a blood clot that blocks or plugs a blood vessel in the brain. This is the most common type; about 80% of strokes are ischemic.
- Hemorrhagic stroke is caused by a blood vessel that breaks and bleeds into the brain
Another condition that's similar to a stroke is a transient ischemic attack (TIA). It's sometimes called a "mini-stroke." TIAs happen when the blood supply to the brain is blocked for a short time. The damage to the brain cells isn't permanent, but if you have had a TIA, you are at a much higher risk of having a stroke.
Who is at risk for a stroke?
Certain factors can raise your risk of a stroke. The major risk factors include:
- High blood pressure. This is the primary risk factor for a stroke.
- Diabetes.
- Heart diseases.Atrial fibrillation and other heart diseases can cause blood clots that lead to stroke.
- Smoking. When you smoke, you damage your blood vessels and raise your blood pressure.
- A personal or family history of stroke or TIA.
- Age. Your risk of stroke increases as you get older.
- Race and ethnicity. African Americans have a higher risk of stroke.
There are also other factors that are linked to a higher risk of stroke, such as:
- Alcohol and illegal drug use
- Not getting enough physical activity
- High cholesterol
- Unhealthy diet
- Having obesity
What are the symptoms of stroke?
The symptoms of stroke often happen quickly. They include:
- Sudden numbness or weakness of the face, arm, or leg (especially on one side of the body)
- Sudden confusion, trouble speaking, or understanding speech
- Sudden trouble seeing in one or both eyes
- Sudden difficulty walking, dizziness, loss of balance or coordination
- Sudden severe headache with no known cause
If you think that you or someone else is having a stroke, call 911 right away.
How are strokes diagnosed?
To make a diagnosis, your health care provider will:
- Ask about your symptoms and medical history
- Do a physical exam, including a check of
- Your mental alertness
- Your coordination and balance
- Any numbness or weakness in your face, arms, and legs
- Any trouble speaking and seeing clearly
- Run some tests, which may include
- Diagnostic imaging of the brain, such as a CT scan or MRI
- Heart tests, which can help detect heart problems or blood clots that may have led to a stroke. Possible tests include an electrocardiogram (EKG) and an echocardiography.
What are the treatments for stroke?
Treatments for stroke include medicines, surgery, and rehabilitation. Which treatments you get depend on the type of stroke and the stage of treatment. The different stages are:
- Acute treatment, to try to stop a stroke while it is happening
- Post-stroke rehabilitation, to overcome the disabilities caused by the stroke
- Prevention, to prevent a first stroke or, if you have already had one, prevent another stroke
Acute treatments for ischemic stroke are usually medicines:
- You may get tPA, (tissue plasminogen activator), a medicine to dissolve the blood clot. You can only get this medicine within 4 hours of when your symptoms started. The sooner you can get it, the better your chance of recovery.
- If you cannot get that medicine, you may get medicine that helps stop platelets from clumping together to form blood clots. Or you may get a blood thinner to keep existing clots from getting bigger.
- If you have carotid artery disease, you may also need a procedure to open your blocked carotid artery
Acute treatments for hemorrhagic stroke focus on stopping the bleeding. The first step is to find the cause of bleeding in the brain. The next step is to control it:
- If high blood pressure is the cause of bleeding, you may be given blood pressure medicines.
- If an aneurysm if the cause, you may need aneurysm clipping or coil embolization. These are surgeries to prevent further leaking of blood from the aneurysm. It also can help prevent the aneurysm from bursting again.
- If an arteriovenous malformation (AVM) is the cause of a stroke, you may need an AVM repair. An AVM is a tangle of faulty arteries and veins that can rupture within the brain. An AVM repair may be done through
- Surgery
- Injecting a substance into the blood vessels of the AVM to block blood flow
- Radiation to shrink the blood vessels of the AVM
Stroke rehabilitation can help you relearn skills you lost because of the damage. The goal is to help you become as independent as possible and to have the best possible quality of life.
Prevention of another stroke is also important, since having a stroke increases the risk of getting another one. Prevention may include heart-healthy lifestyle changes and medicines.
Can strokes be prevented?
If you have already had a stroke or are at risk of having a stroke, you can make some heart-healthy lifestyle changes to try to prevent a future stroke:
- Eating a heart-healthy diet
- Aiming for a healthy weight
- Managing stress
- Getting regular physical activity
- Quitting smoking
- Managing your blood pressure and cholesterol levels
If these changes aren't enough, you may need medicine to control your risk factors.
NIH: National Institute of Neurological Disorders and Stroke
Benign Tumors
Tumors are abnormal growths in your body. They can be either benign or malignant. Benign tumors aren't cancer. Malignant ones are. Benign tumors grow only in one place. They cannot spread or invade other parts of your body. Even so, they can be dangerous if they press on vital organs, such as your brain.
Tumors are made up of extra cells. Normally, cells grow and divide to form new cells as your body needs them. When cells grow old, they die, and new cells take their place. Sometimes, this process goes wrong. New cells form when your body does not need them, and old cells do not die when they should. These extra cells can divide without stopping and may form a tumor.
Treatment often involves surgery. Benign tumors usually don't grow back.
NIH: National Cancer Institute
Blood Clots
What is a blood clot?
A blood clot is a mass of blood that forms when platelets, proteins, and cells in the blood stick together. When you get hurt, your body forms a blood clot to stop the bleeding. After the bleeding stops and healing takes place, your body usually breaks down and removes the blood clot. But sometimes the blood clots form where they shouldn't, your body makes too many blood clots or abnormal blood clots, or the blood clots don't break down like they should. These blood clots can be dangerous and may cause other health problems.
Blood clots can form in, or travel to, the blood vessels in the limbs, lungs, brain, heart, and kidneys. The types of problems blood clots can cause will depend on where they are:
- Deep vein thrombosis (DVT) is a blood clot in a deep vein, usually in the lower leg, thigh, or pelvis. It can block a vein and cause damage to your leg.
- A pulmonary embolism (PE) can happen when a DVT breaks off and travels through the bloodstream to the lungs. A PE, especially if it is large, can damage your lungs and prevent your other organs from getting enough oxygen.
- Cerebral venous sinus thrombosis (CVST) is a rare blood clot in the venous sinuses in your brain. Normally the venous sinuses drain blood from your brain. CVST blocks the blood from draining and can cause a hemorrhagic stroke.
- Blood clots in other parts of the body can cause problems such as an ischemic stroke, a heart attack, kidney problems, kidney failure, and pregnancy-related problems.
Who is more likely to develop blood clots?
Certain factors can raise your risk of developing blood clots:
- Atherosclerosis
- Atrial fibrillation
- Being overweight or having obesity
- Cancer and cancer treatments
- Certain genetic disorders
- Certain surgeries
- COVID-19
- Diabetes
- Family history of blood clots
- Overweight and obesity
- Pregnancy and giving birth
- Serious injuries
- Some medicines, including birth control pills
- Smoking
- Staying in one position for a long time, such as being in the hospital or taking a long car or plane ride
What are the symptoms of blood clots?
The symptoms for blood clots can be different, depending on where the blood clot is:
- In the abdomen: Abdominal pain, nausea and vomiting
- In an arm or leg: Sudden or gradual pain, swelling, tenderness, and warmth
- In the lungs: Shortness of breath, pain with deep breathing, rapid breathing, and increased heart rate
- In the brain: Trouble speaking, vision problems, seizures, weakness on one side of the body, and sudden severe headache
- In the heart: Chest pain, sweating, shortness of breath, and pain in the left arm
How are blood clots diagnosed?
To find out if you have one or more blood clots, your health care provider:
- Will do a physical exam.
- Will take your medical history, which includes asking about your symptoms.
- May order blood tests, including a D-dimer test.
- May order imaging tests, such as
- Ultrasound.
- X-rays of the veins (venography) or blood vessels (angiography) that are taken after you get an injection of special dye. The dye shows up on the x-ray and allows the provider to see how the blood flows.
- CT Scan.
What are the treatments for blood clots?
Treatments for blood clots depend on where the blood clot is located and how severe it is. Treatments may include:
- Blood thinners.
- Other medicines, including thrombolytics. Thrombolytics are medicines that dissolve blood clots. They are usually used where the blood clots are severe.
- Surgery and other procedures to remove the blood clots
Can blood clots be prevented?
You may be able to help prevent blood clots by:
- Moving around as soon as possible after having been confined to your bed, such as after surgery, illness, or injury
- Getting up and moving around every few hours when you have to sit for long periods of time, for example if you are on a long flight or car trip
- Wearing compression stockings after surgery or during a long flight
- Regular physical activity
- Not smoking
- Staying at a healthy weight
Some people at high risk may need to take blood thinners to prevent blood clots.
Blood Thinners
What are blood thinners?
Blood thinners are medicines that prevent blood clots from forming. They do not break up clots that you already have. But they can stop those clots from getting bigger. It's important to treat blood clots, because clots in your blood vessels and heart can cause heart attacks, strokes, and blockages.
Who needs blood thinners?
You may need a blood thinner if you have:
- Certain heart or blood vessel diseases
- An abnormal heart rhythm called atrial fibrillation
- A heart valve replacement
- A risk of blood clots after surgery
- Congenital heart defects
What are the different types of blood thinners?
There are different types of blood thinners:
- Anticoagulants, such as heparin or warfarin (also called Coumadin), slow down your body's process of making clots.
- Antiplatelets, such as aspirin and clopidogrel, prevent blood cells called platelets from clumping together to form a clot. Antiplatelets are mainly taken by people who have had a heart attack or stroke.
How can I take blood thinners safely?
When you take a blood thinner, follow the directions carefully. Blood thinners may interact with certain foods, medicines, vitamins, and alcohol. Make sure that your health care provider knows all of the medicines and supplements you are using.
You may need regular blood tests to check how well your blood is clotting. It is important to make sure that you're taking enough medicine to prevent clots, but not so much that it causes bleeding.
What are the side effects of blood thinners?
Bleeding is the most common side effect of blood thinners. They can also cause an upset stomach, nausea, and diarrhea.
Other possible side effects can depend on which type of blood thinner that you are taking.
Call your provider if you have any sign of serious bleeding, such as:
- Menstrual bleeding that is much heavier than normal
- Red or brown urine
- Bowel movements that are red or black
- Bleeding from the gums or nose that does not stop quickly
- Vomit that is brown or bright red
- Coughing up something red
- Severe pain, such as a headache or stomachache
- Unusual bruising
- A cut that does not stop bleeding
- A serious fall or bump on the head
- Dizziness or weakness
Heart Diseases
What is heart disease?
Heart disease is a general term that includes many types of heart problems. It's also called cardiovascular disease, which means heart and blood vessel disease.
Heart disease is the leading cause of death in the United States, but there are ways to prevent and manage many types of heart disease.
What are the types of heart disease?
There are many different types of heart disease. Some you may be born with, called congenital heart disease. Other types develop during your lifetime.
Coronary artery disease (also called coronary heart disease) is the most common type of heart disease. It happens slowly over time when a sticky substance called plaque builds up in the arteries that supply your heart muscle with blood. The plaque narrows or blocks blood flow to the heart muscle and can lead to other heart problems:
- Angina - chest pain from lack of blood flow
- Heart attacks - when part of the heart muscle dies from loss of blood flow
- Heart failure - when your heart can't pump enough blood to meet your body's needs
- Arrhythmia - a problem with the rate or rhythm of your heartbeat
Other types of heart diseases may affect your heart valves or heart muscle (cardiomyopathy).
What causes heart diseases?
The causes of heart disease depend on the type of disease. Some possible causes include lifestyle, genetics, infections, medicines, and other diseases.
Who is more likely to develop heart diseases?
There are many different factors that can make you more likely to develop heart disease. Some of these factors you can change, but others you cannot.
- Age. Your risk of heart disease goes up as you get older.
- Sex. Some factors may affect heart disease risk differently in women than in men.
- Family history and genetics. A family history of early heart disease raises your risk of heart disease. And research has shown that some genes are linked to a higher risk of certain heart diseases.
- Race/ethnicity. Certain groups have higher risks than others.
- Lifestyle habits. Over time, unhealthy lifestyle habits can raise your risk heart disease:
- Eating a diet high in saturated fats, refined carbohydrates, and salt.
- Not getting enough physical activity.
- Drinking too much alcohol.
- Smoking and exposure to secondhand smoke.
- Too much stress.
- Having other medical conditions can raise your risk of heart diseases. These conditions include:
- High blood pressure.
- High cholesterol levels.
- Diabetes.
- Obesity.
- Autoimmune and inflammatory diseases.
- Chronic kidney disease.
- Metabolic syndrome.
What are the symptoms of heart disease?
Your symptoms will depend on the type of heart disease you have. You may not have symptoms at first. In some cases, you may not know you have heart disease until you have a complication such as a heart attack.
How are heart diseases diagnosed?
To find out if you have heart disease, your health care provider will:
- Ask about your medical history, including your symptoms
- Ask about your family health history, including relatives who have had heart disease
- Do a physical exam
- Likely run heart tests and blood tests
In some cases, your provider may refer you to a cardiologist (a doctor who specializes in heart diseases) for tests, diagnosis, and care.
What are the treatments for heart disease?
Treatment plans for heart disease depend on the type of heart disease you have, how serious your symptoms are, and what other health conditions you have. Possible treatments may include:
- Heart-healthy lifestyle changes
- Medicines
- Procedures or surgeries
- Cardiac rehabilitation
Can heart diseases be prevented?
You may be able to lower your risk of certain heart diseases by making heart-healthy lifestyle changes and managing any other medical conditions you have.
NIH: National Heart, Lung, and Blood Institute
Heart Surgery
What is heart surgery?
Heart surgery can correct certain heart problems when other treatments haven't worked or can't be used.
In some cases, heart surgery may be a medical emergency. For example, surgery for a severe heart attack may need to be done right away. In other cases, you can plan heart surgery ahead of time. Some heart surgeries are major operations, such as heart bypass surgery for blocked arteries in the heart. Other surgeries are more minor heart procedures, such as putting in a pacemaker.
What conditions does heart surgery treat?
There are different types of heart surgery that can help treat many heart conditions:
What conditions does heart surgery treat?What does the heart surgery do?Coronary artery disease (CAD) - when a sticky substance called plaque narrows or blocks the arteries that supply blood to your heart muscle.Makes a new path for blood to flow around the blocked part of an artery in the heart. This is called a coronary artery bypass graft (CABG), or heart bypass. It's the most common heart surgery in adults.Heart valve diseases - problems with the valves that control the flow of blood through your heart.Repairs heart valves.Replaces heart valves with a mechanical valve or a biologic valve made from pig, cow, or human heart tissue.Arrhythmia - problems with the rate or rhythm of your heartbeat. They are caused by changes in the electrical signals that control your heartbeat.Places a pacemaker or an implantable cardioverter defibrillator (ICD) in the chest to correct your heartbeat.Treats
atrial fibrillation with small cuts in the heart muscle. The cuts form scars that make a path for the heart's electrical signals (Maze surgery).Heart failure - when your heart is too weak or stiff to pump enough oxygen-rich blood to meet your body's needs.Places a device in the chest which may include:
- An implantable cardioverter defibrillator (ICD) to help prevent sudden cardiac arrest.
- A biventricular pacemaker to coordinate the heart's pumping action so it's more powerful.
- A ventricular assist device to help the heart pump blood.
- A total artificial heart to pump blood for the heart.
Replaces a seriously diseased heart with a heathy heart (heart transplantation).Heart aneurysm - a balloon-like bulge in the wall of an artery. It can be life-threatening if the aneurysm tears or bursts.Repairs or replaces the weak part of a heart artery using a patch or a tube made of fabric.Angina - chest pain from coronary artery disease.Uses a laser to make small channels through part of the heart muscle (transmyocardial laser revascularization).Damaged and abnormal heart structures, including congenital heart defects - heart structure problems that you're born with.Repairs heart damage or problems with how the heart and blood vessels are formed. Repairs depend on the type of defect or damage.What approaches do surgeons use to do heart surgery?
The approach a surgeon uses to do heart surgery depends on your heart problem, your general health, and other factors. Approaches to heart surgery include:
- Open-heart surgery (also called traditional heart surgery) is when the surgeon cuts the chest open to reach the heart. Because it's difficult to operate on a beating heart, medicines are used to stop the heart. A heart-lung bypass machine keeps oxygen-rich blood pumping through the body during the surgery.
- Off-pump heart surgery is open-heart surgery on a beating heart without using a heart-lung bypass machine. The surgeon holds the heart steady with a device. Surgeons may use off-pump heart surgery to do coronary artery bypass grafts (CABG), but only in certain cases.
- Minimally invasive heart surgery uses small cuts between the ribs. The cuts may be as small as 2 to 3 inches. The surgeon inserts tools into the chest through the cuts. This type of heart surgery may or may not use a heart-lung bypass machine.
- Robotic-assisted surgery is a type of minimally invasive surgery. The surgeon uses a computer to control tools on the arms of a robot. This allows the surgeon to be very accurate when doing difficult operations.
What are the risks of heart surgery?
Like all surgery, heart surgery has risks even though the results are often excellent. The risks include:
- Bleeding
- Infection, fever, and swelling
- A problem from anesthesia (medicine that makes you sleep during surgery)
- Arrhythmia
- Damage to the heart, kidneys, liver, and lungs
- Stroke
The risks of heart surgery tend to be higher if:
- The surgery is an emergency.
- You have other medical conditions, including:
- Diabetes
- Kidney diseases
- Lung diseases
- Peripheral artery disease (PAD)
NIH: National Heart, Lung, and Blood Institute
High Blood Pressure
What is blood pressure?
Blood pressure is the force of your blood pushing against the walls of your arteries. Each time your heart beats, it pumps blood into the arteries. Your blood pressure is highest when your heart beats, pumping the blood. This is called systolic pressure. When your heart is at rest, between beats, your blood pressure falls. This is called diastolic pressure.
Your blood pressure reading uses these two numbers. Usually the systolic number comes before or above the diastolic number. For example, 120/80 means a systolic of 120 and a diastolic of 80.
How is high blood pressure diagnosed?
High blood pressure usually has no symptoms. So the only way to find out if you have it is to get regular blood pressure checks from your health care provider. Your provider will use a gauge, a stethoscope or electronic sensor, and a blood pressure cuff. They will take two or more readings at separate appointments before making a diagnosis.
Blood Pressure CategorySystolic Blood PressureDiastolic Blood PressureNormalLess than 120andLess than 80Elevated120 - 129andLess than 80High Blood Pressure Stage 1130 - 139or80 - 89High Blood Pressure Stage 2140 or higheror90 or higherHypertensive Crisis (dangerously high blood pressure - seek medical care right away)Higher than 180andHigher than 120
For children and teens, the health care provider compares the blood pressure reading to what is normal for other kids who are the same age, height, and sex.
What are the different types of high blood pressure?
There are two main types of high blood pressure: primary and secondary high blood pressure.:
- Primary, or essential, high blood pressure is the most common type of high blood pressure. For most people who get this kind of blood pressure, it develops over time as you get older.
- Secondary high blood pressure is caused by another medical condition or use of certain medicines. It usually gets better after you treat that condition or stop taking the medicines that are causing it.
Why do I need to worry about high blood pressure?
When your blood pressure stays high over time, it causes the heart to pump harder and work overtime, possibly leading to serious health problems such as heart attack, stroke, heart failure, and kidney failure.
What are the treatments for high blood pressure?
Treatments for high blood pressure include heart-healthy lifestyle changes and medicines.
You will work with your provider to come up with a treatment plan. It may include only the lifestyle changes. These changes, such as heart-healthy eating and exercise, can be very effective. But sometimes the changes do not control or lower your high blood pressure. Then you may need to take medicine. There are different types of blood pressure medicines. Some people need to take more than one type.
If your high blood pressure is caused by another medical condition or medicine, treating that condition or stopping the medicine may lower your blood pressure.
NIH: National Heart, Lung, and Blood Institute