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how ascites is formed

by Bradford Paucek Published 2 years ago Updated 2 years ago
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Ascites results from high pressure in the blood vessels of the liver (portal hypertension) and low levels of a protein called albumin. Diseases that can cause severe liver damage can lead to ascites.

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You’ll also want to know the average life expectancy. The average lifespan for patients with ascites is 20 to 58 weeks. However, the figure differs based on the root cause of the fluid buildup. For example, patients with heart failure can often live with ascites for years.

How long can someone live with ascites?

  • If abdominal distention, or bloating of the belly, is present.
  • The sides of the abdomen, or flanks, are pushed outward.
  • When percussion is done over the abdomen and percussion note is tympanitic over the umbilicus (belly button) and dull over the lateral abdomen and flank areas (sides of the abdomen). ...
  • If there is a shifting in dullness. ...

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How to know if you have ascites?

  • Drink a mixture of a half-teaspoon garlic juice in a cup of water for several days on an empty stomach to help reduce pain and swelling.
  • Try 25mgs of bitter gourd juice in water three times a day for symptom relief.
  • Juice a half-cup radish leaves, mix with water and drink for symptom relief.

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How to treat ascites naturally?

The prognosis of malignant ascites totally depends on its underlying cause. Treatment involves diatery modification. Patient is asked to take food with less salt. There is no water intake restriction. In case of medication therapy, diuretics are prescribed. Almost 44 percent of patients show positive response to diuretics.

What is the prognosis of ascites?

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What is the most common cause of ascites?

What causes ascites? The most common cause of ascites is cirrhosis of the liver. Drinking too much alcohol is one of the most common causes of cirrhosis of the liver. Different types of cancer can also cause this condition.

Does ascites develop suddenly?

Symptoms of ascites can appear either slowly or suddenly, depending on the cause of the fluid buildup. They don't always signal an emergency, but you should talk with your doctor if you experience the following symptoms: a distended, or swollen, abdomen. sudden weight gain.

What are the first signs of ascites?

Ascites is a buildup of fluid in the abdomen. It commonly occurs as a complication of liver disease. Symptoms include bloating, indigestion, constipation, and shortness of breath. Although it can be treated with medication and simple procedures, it can recur in people with chronic conditions.

How quickly does ascites form?

What are the symptoms of ascites? The fluid causes swelling that can make the tummy feel tight and very uncomfortable. It often develops over a few weeks but might happen over a few days.

How long does ascites last?

In general, the prognosis of malignant ascites is poor. Most cases have a mean survival time between 20 to 58 weeks, depending on the type of malignancy as shown by a group of investigators. Ascites due to cirrhosis usually is a sign of advanced liver disease and it usually has a fair prognosis.

What makes ascites go away?

Can ascites be cured? Treatments for ascites can help improve symptoms and reduce complications. In some patients, ascites may resolve with diuretic therapy or with TIPS or liver transplant. In the case of alcohol-associated hepatitis, ascites may resolve with improvements in liver function.

How can I reduce ascites naturally?

Restrict Salt Following a high blood pressure diet that focuses on eating fresh vegetables and fruit, lean proteins and legumes, healthy fats, sprouted whole grains, and organic dairy products, along with limiting any excess salt in the diet may help relieve fluid retention.

Is ascites hard or soft?

Both ascites and beer belly result in a large, protruding hard belly that can resemble that of a pregnant woman's belly. Ascites often results in a rapid weight gain in contrast to a more gradual gain with beer belly development.

Is ascites the end stage?

introduction. Malignant ascites is a manifestation of end stage events in a variety of cancers and is associated with significant morbidity.

What color is ascites fluid?

Ascitic fluid is typically translucent and yellow. Fluid of other colour or consistency may reflect specific underlying disease processes (see table).

Can you reverse ascites?

Can ascites be reversed? With treatment, ascites can be temporarily reversed. But over time, more invasive treatments will be needed to temporarily reverse ascites. Eventually, most people with ascites will need a liver transplant.

What type of infection causes ascites?

Spontaneous bacterial peritonitis is an infection of abdominal fluid, called ascites, that does not come from an obvious place within the abdomen, such as a hole in the intestines or a collection of pus. The condition typically affects people with liver disease, who often develop ascites as their disease worsens.

Is a small amount of ascites normal?

Normally the peritoneal cavity contains only a small amount of fluid, although in women this can vary (by 20ml, or less than an ounce) depending on the menstrual cycle. "Ascites is the term used to denote increased fluid in the peritoneal cavity, a situation that is not normal.

What stage of cirrhosis does ascites occur?

Ascites is the main complication of cirrhosis,3 and the mean time period to its development is approximately 10 years. Ascites is a landmark in the progression into the decompensated phase of cirrhosis and is associated with a poor prognosis and quality of life; mortality is estimated to be 50% in 2 years.

What does an ascites belly feel like?

What does ascites feel like? Ascites can put pressure within the abdomen, causing it to feel very large and tight. As the abdomen grows larger, the increased pressure on nearby organs may cause abdominal discomfort, lack of appetite, and shortness of breath.

Can you have ascites without cirrhosis?

Causes. Cirrhosis of the liver is the most common cause of ascites, but other conditions such as heart failure, kidney failure, infection or cancer can also cause ascites.

What is ascites?

Ascites refers to the buildup of excess fluid in the abdominal cavity. Based on the severity of fluid accumulation, ascites can be categorized as m...

What causes ascites?

The most common cause of ascites is cirrhosis, which is a late stage of liver disease characterized by permanent scarring and fibrosis of the liver...

Is ascites life-threatening?

Ascites can lead to the development of life-threatening complications, such as spontaneous bacterial peritonitis, which is a bacterial infection of...

What does ascites look like?

The presentation of ascites can vary depending on its severity. Those with mild ascites may have an abdomen that appears normal, whereas those with...

What does ascites feel like?

Ascites can put pressure within the abdomen, causing it to feel very large and tight. As the abdomen grows larger, the increased pressure on nearby...

How do you treat ascites?

To treat ascites, the choice of treatment depends on its severity and the underlying cause. In mild cases, salt intake should be reduced to 2000mg...

Can ascites be reversed?

With treatment, ascites can be temporarily reversed. But over time, more invasive treatments will be needed to temporarily reverse ascites. Eventua...

What are the most important facts to know about ascites?

Ascites is an abnormal accumulation of fluid in the abdominal cavity, which can lead to a very large distended abdomen. As the abdomen grows larger...

What causes ascites?

The most common cause of ascites is cirrhosis of the liver. Drinking too much alcohol is one of the most common causes of cirrhosis of the liver.

What is ascites in a patient?

What is ascites? Ascites is a condition in which fluid collects in spaces within your abdomen. If severe, ascites may be painful. The problem may keep you from moving around comfortably. Ascites can set the stage for an infection in your abdomen.

How is ascites diagnosed?

Your healthcare provider will do a physical exam and ask about your symptoms. You may also have tests such as:

What is the condition where fluid collects in spaces within the abdomen?

Ascites is a condition in which fluid collects in spaces within your abdomen. As fluid collects in the abdomen, it can affect your lungs, kidneys, and other organs. Ascites causes abdominal pain, swelling, nausea, vomiting, and other difficulties.

How to reduce potassium levels in ascites?

Cut back on your salt intake. Your healthcare provider or a dietitian can show you how to follow a low-sodium diet. Avoid salt substitutes that contain potassium. This is because some medicines used in treating ascites can cause your potassium levels to rise.

How to prevent ascites?

Stopping all alcohol intake, maintaining a healthy weight, exercising, not smoking, and limiting salt intake can help prevent cirrhosis or cancer that may lead to ascites. Ascites can’t be cured but lifestyle changes and treatments may decrease complications.

How do you know if you have ascites?

These are symptoms of ascites: Swelling in the abdomen. Weight gain. Sense of fullness. Bloating. Sense of heaviness. Nausea or indigestion. Vomiting. Swelling in the lower legs.

What causes ascites?

The most common cause of ascites is cirrhosis, which is a late stage of liver disease characterized by permanent scarring and fibrosis of the liver, often as a consequence of chronic alcoholism or hepatitis. Normally, the liver receives blood from the spleen and gastrointestinal organs via the portal vein. When fibrosis becomes extensive, it is harder for blood to flow through the liver. As a consequence, the blood coming from the portal vein may start to back up, leading to portal hypertension, which refers to increased blood pressure in the portal vein. As a result, fluid may start to leak out of the portal vein and into the abdomen, leading to ascites.

What is ascites?

Ascites refers to the buildup of excess fluid in the abdominal cavity. Based on the severity of fluid accumulation, ascites can be categorized as mild, moderate, and large.

How do you treat ascites?

To treat ascites, the choice of treatment depends on its severity and the underlying cause. In mild cases, salt intake should be reduced to 2000mg per day or less. In addition, diuretic medications (water pills) are often prescribed. The individual is also encouraged to avoid nonsteroidal anti-inflammatory medications ( NSAIDs) and alcohol consumption.

What are the most important facts to know about ascites?

As the abdomen grows larger, the increased pressure may cause abdominal discomfort, lack of appetite, and shortness of breath. Moreover, ascites can lead to serious complications, such as spontaneous bacterial peritonitis, hepatorenal syndrome, malnutrition, pleural effusion, and gastrointestinal bleeding. Most often, ascites affects people with cirrhosis and portal hypertension. Ascites is treated by decreasing dietary sodium and taking diuretic medications. In addition, more severe cases may need a paracentesis, placement of a transjugular intrahepatic portosystemic shunt, and ultimately a liver transplant.

How to treat ascites in the abdomen?

In addition, more severe ascites can be treated through paracentesis, which involves aspiration of large amounts of fluid from the abdominal cavity. Due to the potential recurrence, some individuals may require the paracentesis to be repeated multiple times.

How to diagnose ascites?

To determine the underlying cause of ascites, initially a liver ultrasound will be done , and then a diagnostic paracentesis can be performed if needed. A paracentesis is a procedure where a large needle is inserted into the peritoneal cavity to aspirate the ascitic fluid. The ascitic fluid can then be sent off and analyzed .

What are the complications of ascites?

Other complications that ascites can include hepatorenal syndrome, malnutrition, pleural effusion, and gastrointestinal bleeding.

What are the causes of ascites?

Risk factors for ascites. Liver damage is the single biggest risk factor for ascites. Some causes of liver damage include: cirrhosis. hepatitis B or C. a history of alcohol use. Other conditions that may increase your risk for ascites include: ovarian, pancreatic, liver, or endometrial cancer. heart or kidney failure.

What causes ascites in cirrhosis?

Ascites is most likely to affect people with cirrhosis, but there are other causes, such as peritonitis, heart disease, and hepatitis.

What is it called when fluid builds up in the abdomen?

When more than 25 milliliters (mL) of fluid builds up inside the abdomen, it’s known as ascites. Ascites usually occurs when the liver stops working properly. When the liver malfunctions, fluid fills the space between the abdominal lining and the organs.

What is the procedure to treat ascites?

Surgery. In extreme cases, a permanent tube called a shunt is implanted in the body. It reroutes blood flow around the liver. Your doctor may recommend a liver transplant if ascites doesn’t respond to treatment. This is generally used for end-stage liver disease.

What are the complications of ascites?

Complications associated with ascites include: abdominal pain. pleural effusion, or “water on the lung”; this can lead to difficulty breathing. hernias, such as inguinal hernias. bacterial infections, such as spontaneous bacterial peritonitis (SBP) hepatorenal syndrome, a rare type of progressive kidney failure.

What is the best treatment for ascites?

Diuretics . Diuretics are commonly used to treat ascites and are effective for most people with the condition. These drugs increase the amount of salt and water leaving your body, which reduces pressure within the veins around the liver. While you’re on diuretics , your doctor may want to monitor your blood chemistry.

How do you know if you have ascites?

Symptoms don’t always signal an emergency, but you should talk to your doctor if you experience the following: a distended, or swollen, abdomen. sudden weight gain. difficulty breathing when lying down.

How to tell if you have ascites?

People with ascites generally will complain of progressive abdominal heaviness and pressure as well as shortness of breath due to mechanical impingement on the diaphragm. Ascites is detected with physical examination of ...

What is the diagnosis of ascites?

Diagnosis. Ascites in a person with abdominal cancer as seen on ultrasound. Liver cirrhosis with ascites. Routine complete blood count (CBC), basic metabolic profile, liver enzymes, and coagulation should be performed.

Why does ascites cause fluid retention?

Regardless of the cause, sequestration of fluid within the abdomen leads to additional fluid retention by the kidneys due to stimulatory effect on blood pressure hormones, notably aldosterone. The sympathetic nervous system is also activated, and renin production is increased due to decreased perfusion of the kidney. Extreme disruption of the renal blood flow can lead to hepatorenal syndrome. Other complications of ascites include spontaneous bacterial peritonitis (SBP), due to decreased antibacterial factors in the ascitic fluid such as complement .

What is the treatment for refractory ascites?

Another potential treatment option for patients suffering from refractory/malignant ascites is the alfapump, (automated low flow ascites pump) which is an implantable device that removes ascites out of the peritoneal cavity and transports it via the pump into the bladder, where it passed naturally from the body through urination.

How is ascites treated?

Ascites is generally treated while an underlying cause is sought, in order to prevent complications, relieve symptoms, and prevent further progression. In people with mild ascites, therapy is usually as an outpatient.

How to treat ascites in liver?

Treatment often involves a low-salt diet, medication such as diuretics, and draining the fluid. A transjugular intrahepatic portosystemic shunt (TIPS) may be placed but is associated with complications. Effects to treat the underlying cause, such as by a liver transplant may be considered. Of those with cirrhosis, more than half develop ascites in the ten years following diagnosis. Of those in this group who develop ascites, half will die within three years. The term is from the Greek askítes meaning "baglike".

What is the best medication for ascites?

Since salt restriction is the basic concept in treatment, and aldosterone is one of the hormones that acts to increase salt retention, a medication that counteracts aldosterone should be sought. Spironolactone ( or other distal-tubule diuretics such as triamterene or amiloride) is the drug of choice since they block the aldosterone receptor in the collecting tubule. This choice has been confirmed in a randomized controlled trial. Diuretics for ascites should be dosed once per day. Generally, the starting dose is oral spironolactone 100 mg/day (max 400 mg/day). 40% of people will respond to spironolactone. For nonresponders, a loop diuretic may also be added and generally, furosemide is added at a dose of 40 mg/day (max 160 mg/day), or alternatively ( bumetanide or torasemide ). The ratio of 100:40 reduces risks of potassium imbalance. Serum potassium level and renal function should be monitored closely while on these medications.

Where does ascites occur?

Ascites occurs when fluid accumulates in the abdomen. This buildup occurs between two membrane layers that together make up the peritoneum, a smooth sac that contains the body’s organs. It is usual to have a small amount of fluid in the peritoneum cavity.

What causes ascites in the liver?

Liver disease is the most common cause of ascites. Other causes typically include cancer and heart failure. In this article, we will explore the causes of ascites, as well as the symptoms and treatment options.

What is the term for abdominal pain and swelling as the result of fluid buildup?

Ascites refers to abdominal pain and swelling as the result of fluid buildup.

How to move fluid from the abdomen into the bloodstream?

Shunts. When ascites is caused by cancer, doctors may use a shunt (tube) to move the fluid from the abdomen into the bloodstream. A doctor inserts a needle into a vein in the neck and places a shunt along the chest wall. The shunt connects the abdominal cavity to the neck, where it enters the vein. The fluid then moves along the tube into ...

How much fluid is in a paracentesis?

The aim of paracentesis is to relieve abdominal pressure, so the person feels less discomfort. In some instances, a person’s abdomen might contain about 5 liters of fluid, but in some extreme cases of ascites, doctors have drained more than 10 liters of fluid from the abdomen.

How to assess progress of ascites?

Assessment of the progress of ascites may be made by regularly measuring the abdominal girth and by monitoring weight. These measurements are helpful because fluctuations in weight due to changes in the abdominal fluid are much faster than weight fluctuations linked to body fat.

What are the symptoms of ascites?

Ascites is often painful and typically causes a person to feel: 1 nauseated 2 less hungry than usual 3 tired 4 breathless 5 urinary urgency and constipation

What is the prognosis of ascites?

The prognosis of patients with ascites depends on the cause and chronicity. Disorders that are acute and respond to treatment have a much favorable prognosis, compared to disorders that do not respond.

How long does cirrhotic ascites last?

Patients with cirrhotic ascites have a 3-year mortality rate of approximately 50%. Refractory ascites carries a poor prognosis, with a 1-year survival rate of less than 50%. Males have little intraperitoneal fluid, females have approximately 20 mL, depending on the phase of their menstrual cycle. Pathophysiology.

What is the most cost effective method of diagnosing ascites?

Diagnostic abdominal paracentesis with the appropriate ascitic fluid analysis is probably the most rapid and cost-effective method of diagnosing the cause of ascites. [7][8]

What percentage of patients with cirrhosis will have hemorrhagic ascites?

Up to 19% of patients with cirrhosis will have hemorrhagic ascites; this may develop spontaneously with 72% of the cases most likely due to bloody lymph and 13% due to hepatocellular carcinoma. It can also develop following paracentesis. [4][5] Other causes of asictes include:

How to treat high albumin level ascites?

In cases of  high-albumin-gradient ascites which occurs in cirrhosis, the treatment of ascites in these patients  includes abstinence from alcohol, restricting dietary sodium to 88 mEq (2000 mg)  per day , and treating with diuretics (spironolactone and furosemide in a ratio of 100:40 mg/day)

What test can detect ascites?

Chest x-ray may reveal elevated diaphragm. Ultrasound is the most sensitive test to detect ascites. It will reveal homogenous freely mobile anechoic collection in the peritoneal cavity. The smallest amount of fluid is usually seen in Morison pouch.

Can low albumin grade ascites be treated?

Low-albumin-gradient ascites commonly occurs in non-ovarian peritoneal carcinomatosis. These patients often benefit from an outpatient therapeutic paracentesis. Patients with ovarian malignancy may benefit from surgical debulking and chemotherapy.

Why does ascites occur in the liver?

Most commonly, ascites is due to liver disease and the inability of that organ to produce enough protein to retain fluid in the bloodstream as well as an obstruction to flow through the scarred cirrhotic liver. Normally, water is held in the bloodstream by oncotic pressure.

What causes ascites in the liver?

Cancer that has metastasized or spread to the liver can also be the source of ascites.

What Are the Symptoms and Signs of Ascites?

There is a distinction between people who develop ascites because of liver disease and cirrhosis, and those who develop it because of inflammation of the peritoneum because of cancer. The liver disease tends to be relatively painless, while cancer patients experience significant amounts of pain.

What Tests Diagnose Ascites?

Most commonly, however, the patient presents with the complaint of abdominal fullness and pressure, and the ascites can be found on physical examination. The diagnosis is aided by learning the past medical history of the patient so the physician can make the decision to order additional tests.

How Do you Treat Ascites?

Excess fluid in the abdominal cavity can cause significant discomfort and shortness of breath. The method of treatment depends upon the reason for the ascites accumulation, how quickly the fluid has accumulated, whether it is a first occurrence or a repeated event, and how significantly the symptoms affect the patient.

What Is Diuretic Therapy for Ascites?

The goal for diuretic therapy is to lose between one to two pounds of weight per day depending upon the underlying medical conditions. Once most of the ascites fluid is gone, medication dosing will be individualized to the patient's needs.

Why does fluid accumulate in the peritoneum?

There are a variety of diseases that can cause the fluid to accumulate and the reasons that the ascites occurs may be different for each disease. Cancer that spreads to the peritoneum can cause direct leakage of fluid, while other illnesses cause an excess accumulation of water and sodium in the body. This fluid can eventually leak into the peritoneal cavity.

Where do ascites form?

The site of ascites formation is a subject of major discussion. Traditionally, it has been considered that ascites forms in the hepatic sinusoids. Experimental studies in animals that were subjected to acute obstruction of the hepatic veins demonstrated an increased leakage of fluid from the hepatic surface into the abdominal cavity.67 On the other hand, the hepatic sinusoids are extremely permeable to high-molecular-weight substances, including proteins. 100, 101 Therefore, small increases in hydrostatic pressure are associated with a marked increase in lymph production, which has a protein concentration similar to that of plasma. In contrast, the splanchnic capillaries are poorly permeable to proteins. The increase of hydrostatic pressure in these capillaries induces an initial extravasation of lymph with a very low protein concentration. 55 This process is associated with increased intracapillary oncotic pressure, which prevents further leakage of fluid. These features explain why ascites with high protein concentration develops in experimental animals after the acute partial ligation of the suprahepatic vein, whereas ascites does not develop in animals after the acute ligation of the portal vein. 7, 101 These concepts have been extended to cirrhosis. Therefore, ascites has been considered to be produced in the hepatic sinusoids, with little contribution from the intestinal capillaries. Investigations performed during the last two decades, however, indicate that for several reasons these traditional concepts derived from acute experiments in healthy animals cannot be extrapolated to cirrhosis.

What is the cause of ascites in cirrhosis?

In cirrhosis, ascites is the result of an increased extravasation of fluid from the splanchnic microcirculation. In the initial phases of the disease, this process is compensated by an increase in lymph return. In fact, the thoracic duct lymph flow, which in normal conditions is lower than 1 L/day, may increase up to more than 20 L/day in cirrhotic patients with portal hypertension.33 Therefore, when lymph formation overcomes lymphatic drainage, ascites develops.

What causes sodium retention in cirrhosis?

Sodium retention in cirrhosis is mainly caused by an increased renal tubular reabsorption of sodium, because it occurs in the presence of normal or slightly reduced glomerular filtration rate (GFR). The precise contribution of the different nephron segments to this increased sodium reabsorption in cirrhosis has not been completely elucidated. Experimental and clinical studies suggest that both proximal and distal tubules are involved. 1, 28 Sodium retention is usually more pronounced in patients with ascites and renal failure than in patients without renal failure. This greater retention is caused by a reduction in the amount of sodium filtered and possibly by a greater increase in tubular sodium reabsorption. The two main sodium-retaining systems that are responsible for the increased sodium retention in cirrhosis are the renin-angiotensin-aldosterone system (RAAS) and the sympathetic nervous system (SNS). 8, 34, 70, 75 The baroreceptor-mediated activation of these systems constitutes a homeostatic response that attempts to restore the integrity of the circulatory system. Several studies indicate that the activation of the RAAS contributes to sodium retention in cirrhosis. The two final effectors of this system, angiotensin II and aldosterone, induce a marked sodium reabsorption by acting in the proximal tubule and the collecting duct, respectively.17 Many studies in patients with cirrhosis and ascites have shown increased urine excretion or plasma levels of aldosterone and have found a close relationship between aldosterone levels and renal sodium excretion. 17, 95 Nonetheless, the strongest evidence for the role of the RAAS in sodium retention in cirrhosis comes from clinical practice. The administration of aldosterone antagonists successfully promotes diuresis and natriuresis and resolves ascites in cirrhotic patients.86 The SNS is also commonly activated in advanced cirrhosis and stimulates sodium reabsorption in the proximal tubule, loop of Henle, and distal and collecting tubules. 34, 56 There are elevated levels of norepinephrine in plasma and increased rates of norepinephrine spillover from different organs in advanced liver disease. 33, 57 An increase in the α-adrenergic receptor tone results in an increased proximal tubular reabsorption of sodium, and an increase in the β-adrenergic receptor tone causes an increase in renin secretion. 32, 34

What causes vasodilation in the splanchnic arterioles?

Second, in cirrhosis a marked vasodilation in the splanchnic arterioles is caused by portal hypertension. This vasodilation leads to a great inflow of blood at high pressure into the splanchnic capillaries. There is evidence that the increased hydrostatic pressure in the splanchnic capillaries is related more to this forward increase in flow than to the backward transmission of the high portal pressure. 13, 66 Splanchnic arterial vasodilation is also associated with increased permeability of the splanchnic capillaries. The net effect of both processes is a marked increase in lymph production from the splanchnic capillaries. In fact, intestinal edema in the mucosal, muscular, and serosal layers is prominent in human cirrhosis. The jejunal peritoneum of the serosal layer is five times thicker in cirrhotic patients than in controls.35

What is the capillarization of the hepatic sinusoids?

First, in cirrhosis there is capillarization of the hepatic sinusoids. 59, 90 Capillarization refers to collagen deposition in the space of Disse and the disappearance of the large hepatic fenestraes (Fig. 1). The hepatic sinusoid in cirrhosis, therefore, resembles the capillaries of other organs. In cirrhosis, the hepatic sinusoid permeability to proteins is markedly reduced, as is the concentration of proteins in the hepatic lymph. 99 Nonetheless, the protein concentration in the ascitic fluid of patients with cirrhosis, which is frequently lower than 10 g/L, is lower than the protein concentration in the hepatic lymph, indicating that much of the ascitic fluid in cirrhosis derives from a territory with lower permeability to plasma proteins, that is, the splanchnic capillaries.

Why is sodium retained in cirrhosis?

An unanswered question is why a significant proportion of patients with cirrhosis and ascites present with sodium retention despite normal plasma levels of renin, aldosterone, and norepinephrine and increased circulating levels of natriuretic peptides. 89 Most of these patients have normal renal plasma flow and GFR. Therefore, sodium retention cannot be explained by impaired renal perfusion or decreased filtered sodium load. It has been suggested that unknown mechanisms, extremely sensitive to changes in effective arterial blood volume, may induce sodium retention in the early stages of decompensated cirrhosis. These mechanisms would be more sensitive than the traditional sodium-retaining systems and consequently would be activated earlier in the course of the liver disease.

Why does ascites decrease in cirrhosis?

This decrease may be caused by the increased capillarization of the sinusoids. An alternative explanation is that splanchnic arterial vasodilation increases as disease progresses, and that ascites formation in these later stages of cirrhosis derives predominantly from the splanchnic microcirculation.

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