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Alcoholic liver disease is a result of overconsuming alcohol that damages the liver, leading to a buildup of fats, inflammation, and scarring. It can be fatal.
The condition is a primary cause of chronic liver disease in Western nations.
The liver is one of the most complex organs in the human body, with over 500 functions. These include filtering out blood toxins, storing energy, making hormones and proteins, and regulating cholesterol and blood sugar.
Liver damage can affect the whole body. Once damage begins, it can take a long time to become noticeable, as the liver is generally highly effective at regenerating and repairing itself. Often, by the time the damage is found, it is irreversible.
According to the Centers for Disease Control and Prevention (CDC), in 2014 the number of
In 2015, in the United States,
The early signs of alcoholic liver disease are vague and affect a range of systems in the body.
Along with a general feeling of being unwell, signs can include:
- pain in the abdomen
- nausea and vomiting
- decreased appetite
It can be easy to dismiss the early symptoms as the effects of a stomach bug or general malaise. However, leaving these symptoms undiagnosed and untreated, especially while continuing to consume alcohol, can lead to a faster progression of liver disease over time.
Once alcoholic liver disease progresses, its symptoms become easier to recognize.
The more distinctive signs of later-stage liver disease include the following:
- jaundice, or a yellow tint of the whites of the eyes and the skin
- edema, or swelling of the lower limbs
- a buildup of fluid in the abdomen, known as ascites
- fever and shivering
- extremely itchy skin
- fingernails that curve excessively, known as clubbing
- losing a significant amount of weight
- general weakness and wasting muscles
- blood in vomit and stools
- bleeding and bruising more easily
- more sensitive reactions to alcohol and drugs
Once symptoms are noticeable, the condition has reached an advanced stage, and visiting a doctor is a crucial next step.
The first step in treating any level of alcoholic liver disease focuses on removing alcohol from the diet.
This can help to reverse some early stages of liver disease. For example, stopping drinking once diagnosed with fatty liver disease may be able to reverse the condition within
Once a person is diagnosed with alcoholic liver disease at any stage, it is recommended to never resume drinking. Any conditions that have reversed will typically return once drinking restarts.
As alcohol dependency can make it more difficult to quit drinking alcohol, it is necessary to gradually reduce alcohol intake.
Those who regularly drink more than the recommended daily limits of alcohol should not stop drinking without medical support. Withdrawal from alcohol can be life-threatening. Individuals should seek help from a medical professional to safely manage alcohol withdrawal.
The recommended daily limits are no more than one drink a day for women and no more than two drinks a day for men.
Cognitive behavioral therapy (CBT) and medications called benzodiazepines can be used to ease withdrawal symptoms in a person with alcohol dependency. People with severe alcohol dependency may stay at an inpatient rehabilitation facility for closer monitoring.
Ongoing therapy may then be required to prevent a relapse into drinking alcohol. Medications such as acamprosate, naltrexone, topiramate, baclofen, and disulfiram can also be used to help prevent relapse.
Weight loss and quitting smoking might also be recommended since being overweight and smoking have both
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Other medications that show potential for treatment and are currently being studied include:
In people with liver failure, the liver completely ceases to function. This can be an outcome of advanced-stage liver disease and often means that a liver transplant is the
Typically, only people who can show at least six months of abstinence from alcohol before the procedure and those with other organ systems that are healthy enough to undergo surgery will be considered for transplant.
Liver transplant is a complicated procedure that depends on a donor being available. Anti-rejection medications given after transplant can increase the risk of serious infections and certain cancers.
A liver transplant is a last resort. Quitting alcohol and treating this condition early on is the best way for a person to increase their chances of reversing or slowing the disease.
The life expectancy of a person with alcoholic liver disease reduces dramatically as the condition progresses.
On average, one out of three people with the most advanced stage of liver disease and cirrhosis are still alive after
Some stages of the condition can be reversed, and life expectancy can increase once a person stops drinking alcohol completely.
Alcoholic liver disease has
Alcoholic fatty liver disease
Drinking a large volume of alcohol can cause fatty acids to collect in the liver. Sometimes, heavy drinking over a short period, even less than a week, can cause this. There are normally no symptoms, and this stage of the disease is often reversible if the individual abstains from alcohol from this point onward.
Continued alcohol use will lead to ongoing liver inflammation. This can occur after many years of heavy drinking. It can also occur acutely during periods of binge drinking. Hepatitis is a general term swelling and inflammation of the liver from any cause.
If the individual abstains from alcohol on a long-term basis, alcoholic hepatitis is usually reversible.
Fibrosis is a buildup of certain types of protein in the liver, including collagen. It features in most types of chronic liver disease. Mild-to-moderate forms of fibrosis
Cirrhosis occurs when the liver has been inflamed for a long time, leading to scarring and loss of function. This can be a life-threatening condition. Cirrhosis damage is irreversible, but the patient can prevent further damage by continuing to avoid alcohol.
Life-long abstinence can improve liver function, but the permanent and severe damage from cirrhosis might mean that the patient needs a liver transplant to survive.
As the liver no longer processes toxins properly, it will be more sensitive to medications and alcohol. Alcohol use speeds up the destruction of the liver, along with reducing the liver’s ability to compensate for the current damage.
A number of factors increase the risk of alcoholic liver disease.
People who drink beer and liquor may be more likely to experience liver disease, when compared with those who consume other alcoholic beverages, such as wine.
According to the American College of Gastroenterology, women who consume more than two drinks a day and men who consume more than three drinks a day for more than five years are at an increased risk for alcoholic liver disease.
Women metabolize alcohol more slowly than men. They also are
According to the National Institute on Alcohol Abuse and Alcoholism (NIAAA),
Having hepatitis C increases the risk, and a person who consumes alcohol regularly and has had any type of hepatitis faces a higher chance of developing liver disease. Hepatitis C also increases the risk of developing liver cancer.
Genetic changes can affect the risk. If a person experience changes in the genetic profiles of particular enzymes that are key to alcohol metabolism, such as ADH, ALDH, and CYP4502E1, they will have a higher chance of developing alcoholic liver disease.
Not all heavy regular drinkers develop liver damage. It is not known why alcoholic liver disease affects some people and not others.
Acetaldehyde is a toxic chemical that is produced by the body’s break down of alcohol. It damages the liver and leads to liver scarring and inflammation.
This chemical appears to affect some people more than others.
To prevent alcoholic liver disease and other conditions linked to the consumption of alcohol, people are advised to follow national guidelines for limits of alcohol consumption.
The guidelines classify moderate drinking as up to one drink a day for women, up to two drinks for men, and only over the age of 21 years. One drink is equivalent to 12 fluid ounces (oz) of beer at 5 percent alcohol, 5 oz of wine at 12 percent alcohol, or 1.5 oz of spirits at 40 percent alcohol.
Binge drinking refers to drinking too much alcohol in a short space of time. It can increase the risk of liver damage. When a man consumes five or more drinks within 2 hours, or a woman consumes four or more drinks in the same amount of time, it is considered binge drinking.
The NIAAA also notes that different people react to alcohol in different ways, and some are more at risk than others from the effects of alcohol. Alcohol use disorder (AUD) often goes along with alcoholic liver disease. It is a form of
The guidelines identify those at high risk for an alcohol use disorder to be women who drink four or more drinks on any one day, or eight or more drinks in a week, and men who drink five or more drinks on any one day or 15 or more drinks per week.