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Chronic Pancreatitis Does Not and Causing Pancreatitis Pancreatitis National Digestive Diseases Information Clearinghouse Pancreatitis is an inflammation of the pan- creas. The pancreas is a large gland behind the stomach and close to the duodenum. The duodenum is the upper part of the National Institute of small intestine. The pancreas secretes Diabetes and digestive enzymes into the small intestine Digestive and Kidney through a tube called the pancreatic duct. Diseases These enzymes help digest fats, proteins, NATIONAL and carbohydrates in food. The pancreas INSTITUTES also releases the hormones insulin and OF HEALTH glucagon into the bloodstream. These hormones help the body use the glucose it derives from food for energy. threatening illness with many complica- Normally, digestive enzymes do not tions. About 80,000 cases occur in the become active until they reach the small United States each year; some 20 percent intestine, where they begin digesting food. of them are severe. But if these enzymes become active inside the pancreas, they start “digesting” it. Acute pancreatitis is usually caused by drinking too much alcohol or by gallstones. Acute pancreatitis occurs suddenly and A gallstone can block the pancreatic duct, lasts for a short period of time and usually trapping digestive enzymes in the pancreas resolves. Chronic pancreatitis does not and causing pancreatitis. Some prescrip- resolve itself and results in a slow destruc- tion drugs, pancreatic or intestinal abnor- tion of the pancreas. Either form can cause malities, abdominal trauma, or surgery can serious complications. In severe cases, also cause pancreatitis. In some cases, bleeding, tissue damage, and infection may recurrent pancreatitis is hereditary and occur. Cysts, which are fluid-filled sacs of caused by mutations in genes. In rare tissue, may also develop. And enzymes and cases, the disease may result from infec- toxins may enter the bloodstream, injuring tions, such as mumps, and in about 15 per- the heart, lungs, and kidneys, or other cent of the cases, the cause is unknown. organs. Symptoms Acute Pancreatitis Acute pancreatitis usually begins with pain Some people have more than one attack in the upper abdomen that may last for a and recover completely after each, but few days. The pain may be severe and may acute pancreatitis can be a severe, life- become constant—just in the abdomen—or it may reach to the back and other areas. It may be sudden and intense or begin as a Treatment mild pain that gets worse when food is Treatment depends on how bad the attack eaten. Someone with acute pancreatitis is. If no complications in the form of kid- often looks and feels very sick. Other ney failure or lung problems occur, acute symptoms may include pancreatitis usually improves on its own. • swollen and tender abdomen Treatment is designed to support vital func- tions and prevent complications. A hospi- • nausea tal stay will be necessary so that fluids can be replenished intravenously. • vomiting Acute pancreatitis can also cause breathing • fever problems. Many people develop hypoxia, • rapid pulse which means that cells and tissues are not receiving enough oxygen. Doctors treat Severe cases may cause dehydration and hypoxia by giving oxygen through a face low blood pressure. The heart, lungs, or mask. Despite treatment, some people kidneys may fail. If bleeding occurs in the still experience lung failure and require a pancreas, shock and sometimes even death ventilator. follow. If pancreatic cysts occur and are considered Diagnosis large enough to interfere with the pan- creas’s healing, your doctor may drain or Besides asking about a person’s medical surgically remove the cysts. history and doing a physical exam, a doctor will order a blood test to diagnose acute Sometimes a person cannot stop vomiting pancreatitis. During acute attacks, the and needs to have a tube placed in the blood contains at least three times more stomach to remove fluid and air. In mild amylase and lipase than usual. Amylase cases, a person may not eat for 3 or 4 days and lipase are digestive enzymes formed in and instead may receive fluids and pain the pancreas. Changes may also occur in relievers through an IV (intravenous) line. blood levels of glucose, calcium, magne- sium, sodium, potassium, and bicarbonate. Unless the pancreatic duct or bile duct is After the pancreas improves, these levels blocked by gallstones, an acute attack usu- usually return to normal. ally lasts only a few days. In severe cases, a person may be fed intravenously for 3 to A doctor may also order an abdominal 6 weeks while the pancreas slowly heals. ultrasound to look for gallstones and a This process is called total parenteral nutri- CAT (computerized axial tomography) scan tion. However, for mild cases of the dis- to look for inflammation or destruction of ease, total parenteral nutrition offers no the pancreas. CAT scans are also useful in benefit. locating pseudocysts. (See the section on chronic pancreatitis.) 2 Pancreatitis If an infection develops, the doctor may Chronic Pancreatitis prescribe antibiotics. Surgery may be needed for extensive infections. Surgery If injury to the pancreas continues, from may also be necessary to find the source of drinking alcohol, for example, chronic pan- bleeding, to rule out problems that resem- creatitis may develop. Chronic pancreatitis ble pancreatitis, or to remove severely occurs when digestive enzymes attack and damaged pancreatic tissue. destroy the pancreas and nearby tissues, causing scarring and pain. The usual cause Before leaving the hospital, a person will be of chronic pancreatitis is many years of advised not to drink alcohol and not to eat alcohol abuse, but the chronic form may large meals. After all signs of acute pancre- also be triggered by only one acute attack, atitis are gone, the doctor will try to decide especially if the pancreatic ducts are dam- what caused it in order to prevent future aged. The damaged ducts cause the pan- attacks. In some people, the cause of the creas to become inflamed, tissue to be attack is clear, but in others, more tests are destroyed, and scar tissue to develop. needed. Damage from alcohol abuse may not appear for many years, and then a person may have a sudden attack of pancreatitis. Gallstones and In 70 to 80 percent of adult patients, chron- ic pancreatitis appears to be caused by alco- Pancreatitis holism. This form is more common in men Gallstones can cause pancreatitis and than in women and often develops between they usually require surgical removal. the ages of 30 and 40. Ultrasound or a CAT scan can detect gallstones and can sometimes give an Chronic pancreatitis may also occur when idea of the severity of the pancreatitis. the pancreatic duct is blocked or narrowed When gallstone surgery can be sched- because of trauma or because pseudocysts uled depends on how severe the pan- have formed. Pseudocysts are cyst-like creatitis is. If the pancreatitis is mild, buildups of pancreatic fluid in the duct. gallstone surgery may proceed within Some drugs can cause chronic pancreatitis about a week. More severe cases may too. In many cases, however, the cause is mean gallstone surgery is delayed for unknown. People with chronic pancreatitis a month or more. may have one or even all three of the fol- After the gallstones are removed and lowing problems: pain, diabetes, or malab- inflammation goes away, the pancreas sorption of food leading to weight loss. usually returns to normal. In some cases, chronic pancreatitis is inher- ited. Hereditary pancreatitis usually begins in childhood but may not be diagnosed for several years. A person with hereditary pancreatitis usually has the typical symp- toms that come and go over time. Episodes last from 2 days to 2 weeks. 3 Pancreatitis A determining factor in the diagnosis of Using ultrasonic imaging, endoscopic retro- hereditary pancreatitis is two or more fam- grade cholangiopancreatography (ERCP), ily members with pancreatitis in more than and CAT scans, a doctor can see problems one generation. Treatment for individual indicating chronic pancreatitis. Such prob- attacks is usually the same as it is for acute lems include calcification of the pancreas, pancreatitis. Any pain or nutrition prob- in which tissue hardens from deposits of lems are treated just as they are for chronic insoluble calcium salts. In more advanced pancreatitis. Surgery can often ease pain stages of the disease, when diabetes and and help manage complications. malabsorption occur, a doctor can use a number of blood, urine, and stool tests to Symptoms help diagnose chronic pancreatitis and to Some people have no pain, but most do. monitor its progression. Pain in the back and abdomen may be constant and disabling. In certain cases, Treatment abdominal pain goes away as the condition Relieving pain is the first step in treating advances, probably because the pancreas is chronic pancreatitis. The next step is to no longer making digestive enzymes. plan a diet that is high in carbohydrates and low in fat. People with chronic disease often lose weight, even when their appetite and eating A doctor may prescribe pancreatic enzymes habits are normal. The weight loss occurs to take with meals if the pancreas does not because the body does not secrete enough secrete enough of its own. The enzymes pancreatic enzymes to break down food, so should be taken with every meal to help the nutrients are not absorbed normally. Poor body digest food and regain some weight. digestion leads to excretion of fat, protein, Sometimes insulin or other drugs are and sugar into the stool. If the insulin- needed to control blood glucose. producing cells of the pancreas (islet cells) have been damaged, diabetes may also In some cases, surgery is needed to relieve develop at this stage. pain. The surgery may involve draining an enlarged pancreatic duct or removing part Diagnosis of the pancreas.
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