bowang0911/MedQuAD huggingface dataset:
There are many medicines that are used to treat a heart attack. - Clot-busters or thrombolytic drugs dissolve blood clots that are blocking blood flow to the heart.  - Beta blockers decrease the workload on your heart by slowing your heart rate.  - Angiotensin-converting enzyme (ACE) inhibitors lower your blood pressure and reduce the strain on your heart.  - Nitrates, such as nitroglycerin  relax blood vessels and relieve chest pain.  - Anticoagulants thin the blood and prevent clots from forming in your arteries.  - Antiplatelet medications, such as aspirin and clopidogrel, stop platelets from clumping together to form clots. These medications are given to people who have had a heart attack, have angina, or have had angioplasty. Clot-busters or thrombolytic drugs dissolve blood clots that are blocking blood flow to the heart. Beta blockers decrease the workload on your heart by slowing your heart rate. Angiotensin-converting enzyme (ACE) inhibitors lower your blood pressure and reduce the strain on your heart. Nitrates, such as nitroglycerin  relax blood vessels and relieve chest pain. Anticoagulants thin the blood and prevent clots from forming in your arteries. Antiplatelet medications, such as aspirin and clopidogrel, stop platelets from clumping together to form clots. These medications are given to people who have had a heart attack, have angina, or have had angioplasty. Doctors may also prescribe medicines to relieve pain and anxiety, or to treat irregular heart rhythms which often occur during a heart attack.
Having a heart attack increases your chances of having another one. Therefore, it is very important that you and your family know how and when to seek medical attention. Talk to your doctor about making an emergency action plan, and discuss it with your family. The emergency action plan should include - warning signs or symptoms of a heart attack  - instructions for accessing emergency medical services in your community, including calling 9-1-1  - steps you can take while waiting for medical help to arrive, such as taking aspirin and nitroglycerin  - important information to take along with you to the hospital, such as a list of medications that you take or that you are allergic to, and name and number of whom you should contact if you go to the hospital. warning signs or symptoms of a heart attack instructions for accessing emergency medical services in your community, including calling 9-1-1 steps you can take while waiting for medical help to arrive, such as taking aspirin and nitroglycerin important information to take along with you to the hospital, such as a list of medications that you take or that you are allergic to, and name and number of whom you should contact if you go to the hospital.
How Tumors Form The body is made up of many types of cells. Normally, cells grow, divide, and produce more cells as needed to keep the body healthy and functioning properly. Sometimes, however, the process goes wrong -- cells become abnormal and form more cells in an uncontrolled way. These extra cells form a mass of tissue, called a growth or tumor. Tumors can be benign, which means not cancerous, or malignant, which means cancerous. How Colorectal Cancer Develops Cancer of the colon or rectum is called colorectal cancer. The colon and the rectum are part of the large intestine, which is part of the digestive system. Colorectal cancer occurs when tumors form in the lining of the large intestine, also called the large bowel. Colorectal cancer accounts for almost ten percent of all cancer deaths in the United States. The risk of developing colorectal cancer rises after age 50. It is common in both men and women. Colorectal Cancer Can Spread Sometimes, cancer cells break away from the malignant tumor and enter the bloodstream or the lymphatic system where they travel to other organs in the body. Among other things, the lymphatic system transports white blood cells that fight infection. When cancer travels or spreads from its original location in the colon to another part of the body such as the liver, it is called metastatic colorectal cancer and not liver cancer. When colorectal cancer does spread, it tends to spread to the liver or lungs. Cure Rate for Early Detection Today there are more ways than ever to treat colorectal cancer. As with almost all cancers, the earlier it is found, the more likely that the treatment will be successful. If colon cancer is detected in its early stages, it is up to 90 percent curable.
Scientists don't know exactly what causes colorectal cancer, but they have been able to identify some risk factors for the disease. A risk factor is anything that increases your chances of getting a disease. Studies show that the following risk factors may increase a person's chances of developing colorectal cancer: age, polyps, personal history, family history, and ulcerative colitis. Age Colorectal cancer is more likely to occur as people get older. It is more common in people over the age of 50, but younger people can get it, too. In rare cases, it can occur in adolescence. Polyps Polyps are benign, or non-cancerous, growths on the inner wall of the colon and rectum. They are fairly common in people over age 50. Some types of polyps increase a person's risk of developing colorectal cancer. Not all polyps become cancerous, but nearly all colon cancers start as polyps. Diet The link between diet and colorectal cancer is not firmly established. There is evidence that smoking cigarettes and drinking 3 or more alcoholic beverages daily may be associated with an increased risk of colorectal cancer. Personal History Research shows that women with a history of cancer of the ovary, uterus, or breast have a somewhat increased chance of developing colorectal cancer. Also, a person who has already had colorectal cancer may develop this disease a second time. Family History The parents, siblings, and children of a person who has had colorectal cancer are somewhat more likely to develop this type of cancer themselves. This is especially true if the relative had the cancer at a young age. If many family members have had colorectal cancer, the chances increase even more. Ulcerative colitis Ulcerative colitis is a condition in which there is a chronic break in the lining of the colon. Having this condition increases a person's chance of developing colorectal cancer. Genetic Mutations Researchers have identified genetic mutations, or abnormalities, that may be linked to the development of colon cancer. They are working to unravel the exact ways these genetic changes occur. Recent results from The Cancer Genome Atlas study of colorectal cancer point to several genes (BRAF and EGRF among others) that may increase risk. If You Have Risk Factors If you have one or more of these risk factors, it doesn't mean you will get colorectal cancer. It just increases the chances. You may wish to talk to your doctor about these risk factors. He or she may be able to suggest ways you can reduce your chances of developing colorectal cancer and plan an appropriate schedule for checkups.
There are several treatment options for colorectal cancer, although most treatments begin with surgical removal of either the cancerous polyp or section of the colon. The choice of treatment depends on your age and general health, the stage of cancer, whether or not it has spread beyond the colon, and other factors. If tests show that you have cancer, you should talk with your doctor and make treatment decisions as soon as possible. Studies show that early treatment leads to better outcomes. Working With a Team of Specialists A team of specialists often treats people with cancer. The team will keep the primary doctor informed about the patient's progress. The team may include a medical oncologist who is a specialist in cancer treatment, a surgeon, a radiation oncologist who is a specialist in radiation therapy, and others. Before starting treatment, you may want another doctor to review the diagnosis and treatment plan. Some insurance companies require a second opinion. Others may pay for a second opinion if you request it. Clinical Trials for Colorectal Cancer Some colorectal cancer patients take part in studies of new treatments. These studies, called clinical trials, are designed to find out whether a new treatment is safe and effective. Often, clinical trials compare a new treatment with a standard one so that doctors can learn which is more effective. People with colorectal cancer who are interested in taking part in a clinical trial should talk with their doctor. The U.S. National Institutes of Health, through its National Library of Medicine and other Institutes, maintains a database of clinical trials at ClinicalTrials.gov. Click here to see a list of the current clinical trials on colorectal cancer. A separate window will open. Click the "x" in the upper right hand corner of the "Clinical Trials" window to return here.
Possible signs of colorectal cancer include: - a change in the frequency of bowel movements   - diarrhea, constipation, or feeling that the bowel does not empty completely   - either bright red or very dark blood in the stool a change in the frequency of bowel movements diarrhea, constipation, or feeling that the bowel does not empty completely either bright red or very dark blood in the stool - stools that are narrower than usual  - general abdominal discomfort such as frequent gas pains, bloating, fullness, and/or cramps   - weight loss with no known reason  - constant tiredness  - vomiting stools that are narrower than usual general abdominal discomfort such as frequent gas pains, bloating, fullness, and/or cramps weight loss with no known reason constant tiredness vomiting
Here are some of the tools used to detect colorectal cancer. - A fecal occult blood test, or FOBT, is a test used to check for hidden blood in the stool. Sometimes cancers or polyps can bleed, and FOBT can detect small amounts of bleeding. Newer, genetically-based stool tests are proving to be more accurate than older tests. A fecal occult blood test, or FOBT, is a test used to check for hidden blood in the stool. Sometimes cancers or polyps can bleed, and FOBT can detect small amounts of bleeding. Newer, genetically-based stool tests are proving to be more accurate than older tests. - A sigmoidoscopy is an examination of the rectum and lower colon -- or sigmoid colon -- using a lighted instrument called a sigmoidoscope. A sigmoidoscopy is an examination of the rectum and lower colon -- or sigmoid colon -- using a lighted instrument called a sigmoidoscope.  - A colonoscopy is an examination of the rectum and the large intestine (but not the small intestine) using a lighted instrument called a colonoscope. A colonoscopy is an examination of the rectum and the large intestine (but not the small intestine) using a lighted instrument called a colonoscope.  - A virtual colonoscopy, which requires the same preparation as a standard colonoscopy, is done with an external scanning machine as opposed to a device inserted into the colon. The colon does need to be inflated with gas for proper scanning. A virtual colonoscopy, which requires the same preparation as a standard colonoscopy, is done with an external scanning machine as opposed to a device inserted into the colon. The colon does need to be inflated with gas for proper scanning.
Several types of surgery are available for someone with colorectal cancer. If the cancer is found at a very early stage, the doctor may remove it without cutting through the abdominal wall. Instead, the doctor may put a tube up the rectum into the colon and cut the cancer out. This is called a local excision. If the cancer is found in a polyp, which is a small bulging piece of tissue, the operation is called a polypectomy. If the cancer is larger, the surgeon will remove the cancer and a small amount of healthy tissue around it. This is called a colectomy. The surgeon may then sew the healthy parts of the colon together. Usually, the surgeon will also remove lymph nodes near the colon and examine them under a microscope to see whether they contain cancer. If the doctor is not able to sew the two ends of the colon back together, an opening called a stoma is made on the abdomen for waste to pass out of the body before it reaches the rectum. This procedure is called a colostomy. Sometimes the colostomy is needed only until the lower colon has healed, and then it can be reversed. But if the doctor needs to remove the entire lower colon, the colostomy may be permanent.
Even if the doctor removes all the cancer that can be seen at the time of the operation, many patients receive chemotherapy after surgery to kill any cancer cells that are left. Chemotherapy treatment after surgery -- to increase the chances of a cure -- is called adjuvant therapy. Researchers have found that patients who received adjuvant therapy usually survived longer and went for longer periods of time without a recurrence of colon cancer than patients treated with surgery alone. Patients age 70 and older benefited from adjuvant treatment as much as their younger counterparts. In fact, adjuvant therapy is equally as effective -- and no more toxic -- for patients 70 and older as it is for younger patients, provided the older patients have no other serious diseases. Adjuvant chemotherapy is standard treatment for patients whose cancer is operable and who are at high risk for a recurrence of the disease. Most cases of colon cancer occur in individuals age 65 and over. But studies have shown that older patients receive adjuvant chemotherapy less frequently than younger patients.
For surgery, the main side effects are short-term pain and tenderness around the area of the operation. For chemotherapy, the side effects depend on which drugs you take and what the dosages are. Most often the side effects include nausea, vomiting, and hair loss. For radiation therapy, fatigue, loss of appetite, nausea, and diarrhea may occur. There are many new drugs that have greatly reduced the degree of nausea that used to be experienced because of some of these treatments.
Various drugs are under study as possible treatments for colorectal cancer. A 2005 study found that patients who took the drug AvastinTM with their standard chemotherapy treatment had a longer progression-free survival than those who did not take Avastin, but the evidence is mixed on whether or not Avastin can extend life. (The generic name for Avastin is bevacizumab.) Scientists are also working on vaccine therapies and monoclonal antibodies that may improve how patients' immune systems respond to colorectal cancers. Monoclonal antibodies are a single type of antibody that researchers make in large amounts in a laboratory.
Scientists have done research on chemoprevention -- the use of drugs to prevent cancer from developing in the first place. Most of these studies have looked at people with high risk for the disease (where it runs in families) and not in the general population. For example, researchers have found that anti-inflammatory drugs helped keep intestinal tumors from forming, but serious side effects have been noted so researchers are proceeding cautiously. Studies have shown that non-steroidal anti-inflammatory drugs can keep large bowel polyps from forming. Bowel polyps can start out benign, or non-cancerous, but can become cancerous. Serious cardiac effects of these drugs have been noted so researchers are also proceeding cautiously in recommending these drugs for prevention.
A Bone Disease Osteoporosis is a disease that thins and weakens the bones to the point that they become fragile and break easily. Women and men with osteoporosis most often break bones in the hip, spine, and wrist, but any bone can be affected. You can't "catch" osteoporosis or give it to someone else. In the United States, more than 53 million people either already have osteoporosis or are at high risk due to low bone mass, placing them at risk for more serious bone loss and fractures. Although osteoporosis can strike at any age, it is most common among older people, especially older women. How Bone Loss Occurs Bone is living tissue. Throughout our lives, the body breaks down old bone and replaces it with new bone. But as people age, more bone is broken down than is replaced. The inside of a bone normally looks like a honeycomb, but when a person has osteoporosis, the spaces inside this honeycomb become larger, reflecting the loss of bone density and strength. (The word "osteoporosis" means "porous bone.") The outside of long bones -- called the cortex -- also thins, further weakening the bone. Sometime around the age of 30, bone mass stops increasing, and the goal for bone health is to keep as much bone as possible for as long as you can. In most women, the rate of bone loss increases for several years after menopause, then slows down again, but continues. In men, the bone loss occurs more slowly. But by age 65 or 70, most men and women are losing bone at the same rate. Weak Bones Can Lead to Fractures Osteoporosis is often called "silent" because bone loss occurs without symptoms. People may not know that they have osteoporosis until a sudden strain, bump, or fall causes a bone to break. This can result in a trip to the hospital, surgery, and possibly a long-term disabling condition. Broken bones in your spine are painful and very slow to heal. People with weak bones in their spine gradually lose height and their posture becomes hunched over. Over time a bent spine can make it hard to walk or even sit up. Broken hips are a very serious problem as we age. They greatly increase the risk of death, especially during the year after they break. People who break a hip might not recover for months or even years. Because they often cannot care for themselves, they are more likely to have to live in a nursing home. Prevention and Treatment The good news is that osteoporosis can often be prevented and treated. Healthy lifestyle choices such as proper diet, exercise, and treatment medications can help prevent further bone loss and reduce the risk of fractures.
Fractures -- A Possible Warning Sign Osteoporosis does not have any symptoms until a fracture occurs. Women and men with osteoporosis most often break bones in the hip, spine, and wrist. But any fracture in an older person could be a warning sign that the bone is weaker than optimal. Some people may be unaware that they have already experienced one or more spine fractures. Height loss of one inch or more may be the first sign that someone has experienced spine fractures due to osteoporosis. Multiple spine fractures can cause a curved spine, stooped posture, back pain, and back fatigue. Women and men who have had a fracture are at high risk of experiencing another one. A fracture over the age of 50 or several fractures before that age may be a warning sign that a person has already developed osteoporosis. People over the age of 50 who have experienced a fracture should talk to their doctor about getting evaluated for osteoporosis. Risk Factors for Fractures The more likely you are to fall, the higher your risk for a fracture. And more severe falls increase your risk for fractures. Factors that increase your risk of falling and of fracturing a bone include - decreased muscle strength   - poor balance  -  impaired eyesight  - impaired mental abilities   - certain medications, such as tranquilizers and muscle relaxants  - hazardous elements in your living environment, such as slippery throw rugs and icy sidewalks.  decreased muscle strength poor balance impaired eyesight impaired mental abilities certain medications, such as tranquilizers and muscle relaxants hazardous elements in your living environment, such as slippery throw rugs and icy sidewalks. The angle at which you fall also affects your risk of fracture. Hip Fractures Although low bone mass (or low bone density) plays an important role in determining a person's risk of osteoporosis, it is only one of many risk factors for fractures. Various aspects of bone geometry, such as tallness, hip structure, and thighbone (femur) length, can also affect your chances of breaking a bone if you fall. Increasing age, too much weight loss, a history of fractures since age 50, having an existing spine fracture, and having a mother who fractured her hip all increase the risk of hip fracture regardless of a person's bone density. People with more risk factors have a higher chance of suffering a hip fracture.
Scientists are pursuing a wide range of basic and clinical studies on osteoporosis. Significant advances in preventing and treating osteoporosis continue to be made. Such advances are the direct result of research focused on -  determining the causes and consequences of bone loss at the cellular and tissue levels  - assessing risk factors  - developing new strategies to maintain and even enhance bone density and reduce fracture risk  - exploring the roles of such factors as genetics, hormones, calcium, vitamin D, drugs, and exercise on bone mass. determining the causes and consequences of bone loss at the cellular and tissue levels assessing risk factors developing new strategies to maintain and even enhance bone density and reduce fracture risk exploring the roles of such factors as genetics, hormones, calcium, vitamin D, drugs, and exercise on bone mass.  Get more information about ongoing research on osteoporosis from the National Institute of Arthritis and Musculoskeletal and Skin Diseases (NIAMS) at NIH.
Some risk factors for osteoporosis cannot be changed. These include - Gender. Women are at higher risk for osteoporosis than men. They have smaller bones and lose bone more rapidly than men do because of hormone changes that occur after menopause. Therefore, if you are a woman, you are at higher risk for osteoporosis.  - Age. Because bones become thinner with age, the older you are, the greater your risk of osteoporosis.  - Ethnicity. Caucasian and Asian women are at the highest risk for osteoporosis. This is mainly due to differences in bone mass and density compared with other ethnic groups. African-American and Hispanic women are also at risk, but less so.  - Family History. Osteoporosis tends to run in families. If a family member has osteoporosis or breaks a bone, there is a greater chance that you will too.  - History of Previous Fracture. People who have had a fracture after the age of 50 are at high risk of having another. Gender. Women are at higher risk for osteoporosis than men. They have smaller bones and lose bone more rapidly than men do because of hormone changes that occur after menopause. Therefore, if you are a woman, you are at higher risk for osteoporosis. Age. Because bones become thinner with age, the older you are, the greater your risk of osteoporosis. Ethnicity. Caucasian and Asian women are at the highest risk for osteoporosis. This is mainly due to differences in bone mass and density compared with other ethnic groups. African-American and Hispanic women are also at risk, but less so. Family History. Osteoporosis tends to run in families. If a family member has osteoporosis or breaks a bone, there is a greater chance that you will too. History of Previous Fracture. People who have had a fracture after the age of 50 are at high risk of having another.