Diagnostic features and clinical picture
Diagnosis is often complicated by the fact that patients tend to dissemble—they conceal their alcohol addiction. For this reason, objective somatic and neurological manifestations, as well as an official psychiatric conclusion, are of paramount importance for confirming the etiology.
The initial stage of the disease may be completely asymptomatic. However, even during the initial physical examination, the physician detects hepatomegaly, which often reaches significant proportions. As the disease progresses, portal hypertension syndrome comes to the fore.
Specifics of portal hypertension
The course of portal hypertension in alcoholic liver disease has striking differences from viral cirrhosis:
- Ascites develops much earlier. In 77% of patients, fluid accumulation in the abdominal cavity is detected as early as the diagnosis stage. The onset of ascites is often the reason for seeking medical attention for the first time.
- Splenomegaly (enlargement of the spleen), by contrast, develops much later. In some patients, the size of the spleen remains within normal limits even in the advanced stage of the pathological process.
Extrahepatic signs and systemic disorders
Due to constant chronic intoxication of multiple organs, systemic manifestations develop earlier than in viral liver disease.
General disorders include pronounced dystrophic phenomena, drastic weight loss, and signs of severe hypovitaminosis. Digestion suffers: there is exocrine pancreatic insufficiency and malabsorption syndrome (impaired intestinal absorption).
Specific "alcoholic" stigmata include:
- Nerve and muscle tissue damage: polyneuritis, myopathy, muscle atrophy.
- Connective tissue changes: Dupuytren's contracture.
- Glandular disorders: enlargement of the parotid salivary glands (parotitis).
- Endocrine and trophic disorders: hair loss, testicular atrophy.
Laboratory profile and types of anemia
Liver function tests in this disease are often altered only slightly. Protein metabolism shows hypoproteinemia and moderate hypergammaglobulinemia. Enzyme activity (ALT, AST) increases by no more than 3–4 times compared to normal. The immunological profile is characterized by an elevated IgA level.
Anemia is a very common sign, and its etiology is extremely diverse:
- Posthemorrhagic — caused by blood loss from erosive gastritis or hemorrhoidal veins.
- Hypoplastic — caused by the direct toxic effect of ethanol on bone marrow hematopoiesis.
- Megaloblastic — associated with dietary folic acid deficiency, as well as impaired metabolism and absorption.
- Sideroachrestic — develops due to impaired vitamin B6 (pyridoxine) metabolism, leading to insufficient heme synthesis.
- Hemolytic — occurs as a result of increased erythrocyte hemolysis.
Terminal stage and prognosis
The clinical picture of the terminal stage is characterized by extreme exhaustion (cachexia), severe liver failure with pronounced jaundice, fever, and hemorrhagic syndrome. Ascites at this stage becomes persistent and refractory in nature (poorly responsive to therapy).
Main complications leading to a fatal outcome:
- Bleeding from esophageal varices (EV), often ending in hepatic coma.
- Hepatorenal syndrome.
- Onset of secondary infections (peritonitis, pneumonia).
The prognosis can be relatively favorable only on condition of complete cessation of alcohol intake, provision of adequate nutrition, and vitamin supplementation. Patients who have stopped drinking have significantly higher survival rates.
Briefly: answers to topical questions
What microscopic changes in the liver parenchyma underlie the development of cirrhosis?
The development of cirrhosis is based on the disruption of the normal trabecular structure of the liver with the formation of false lobules and regenerative nodules. Microscopic changes include:
- Regenerative nodules — false lobules separated by layers of connective tissue (septa).
- Hepatocyte dystrophy — hepatocytes are in a state of fatty and protein dystrophy.
- Changes in the septa — proliferation of connective tissue, cellular infiltrate, and proliferation of bile ducts.
Portal monolobular cirrhosis is characteristic of alcoholism.
What are the pathogenetic mechanisms of hepatorenal syndrome development in the terminal stage of cirrhosis?
The pathogenesis of hepatorenal syndrome is associated with a sharp decrease in renal blood flow and its redistribution, leading to ischemia of the renal cortex and a decrease in the glomerular filtration rate. The following mechanisms of renal damage are distinguished:
- Hypovolemic — in portal hypertension, it can be caused by gastrointestinal bleeding, vomiting, diarrhea, edema; it leads to cortical ischemia and necrosis of the renal glomeruli.
- Toxic — damage to the renal tubules under conditions of severe liver failure.
- Immune — in alcoholic liver cirrhosis, it is associated with the deposition of immune complexes in the mesangium.
The mnemonic GH-MPS (or the Russian equivalent) will help remember the five types of anemia in alcoholic liver disease: Hemolytic, Hypoplastic, Megaloblastic, Posthemorrhagic, Sideroachrestic.
Class and exam questions
How to distinguish alcoholic cirrhosis from viral cirrhosis by the time of symptom onset?
In alcoholic etiology, ascites and systemic extrahepatic signs appear much earlier. Splenomegaly, by contrast, develops later and may be completely absent.
How much do liver function tests change?
Functional tests are often altered slightly. The activity of ALT and AST enzymes increases moderately—no more than 3–4 times compared to normal.
What determines the patient's prognosis?
The prognosis can be relatively favorable only with complete abstinence from alcohol, adequate nutrition, and vitamin intake. Continued drinking drastically reduces survival chances.
What else to study on this topic
- Morphogenesis of false lobules and regenerative nodules
- Mechanisms of development of refractory ascites in the terminal stage
- Pathogenesis of hepatorenal syndrome
- Impaired pyridoxine metabolism and sideroachrestic anemia
- The role of dissimulation in the late diagnosis of addiction
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