Power Point

Sonographic Evaluation of Liver Cirrhosis: Causes and Pathophysiology

Dr. M Ayub Hussain*

Program Director Deportment of Diagnostic Medical Ultrasonography, New York Medical Career Training Center, USA

Submission: December 06, 2017; Published: December 15, 2017

*Corresponding author: Dr. M Ayub Hussain, Program Director, Deportment of Diagnostic Medical Ultrasonography, New York Medical Career Training Center, USA, Email: mahussain59@gmail.com

How to cite this article: M Ayub Hussain. Sonographic Evaluation of Liver Cirrhosis: Causes and Pathophysiology. Adv Res Gastroentero Hepatol 2017; 8(3): 555737. DOI: 10.19080/ARGH.2017.08.555737

Introduction

Liver cirrhosis existed since ancient times. It is widely speeded all over the world various causes:

a. Known and unknown

b. Signs and symptoms may be different for patients in

Biopsy is not the only and 100% positive test for Liver cirrhosis diagnosing. Clinical history, physical examination, signs and symptoms, blood works and Ultrasound evaluation can diagnose liver cirrhosis most of the time without the need of biopsy. Ultrasound is a helpful modality. Inexpensive, quick, available, noninvasive, portable, repeatable and more over non radiation. Elastography is a kind of ultrasonography recently started commercially.

Goals and Objectives

At the end of this session, we will learn the impact in details about:

a. Patient history

b. Details physical examination

c. Selective blood works

d. Sonography evaluation in order to diagnose the liver cirrhosis without biopsy (Figure 1-5).

Causes of Cirrhosis & Epidemiology

a. Alcoholic cause is more prevalent in western countries 60-70%.

b. Non Alcoholic viral causes: Hep B and C

c. Higher in developing countries, especially Asia and Africa.

d. Inadequate screening test for blood transfusion and contamination from dialysis machine.

e. Unprotected sexual activity (Figure 6).

Non-Alcoholic Causes of Liver cirrhosis

a. NASH (Non Alcoholic Steatohepatitis).

b. Metabolic: Haemochromatosis, Wilson's disease, fatty infiltration and Alpha-1 antitrypsin deficiency

c. Auto-Immune hepatitis.

d. Biliary disease: primary sclerosing cholangitis and primary biliary cirrhosis.

e. Vascular disease: congestive hepatopathy, Budd-chiari syndrome and hepatic veno-occlusive disease.

f. Medications: Methotrexate.

g. Cystic fibrosis: uncommon (Figure 7).

Pathophysiology

Steps

a. Fibrosis.

b. Nodular regeneration.

c. Distortion of liver architecture (Figure 8).

Signs, Symptoms & Physical Examination of Liver Cirrhosis

There’s no typical signs or symptoms of liver cirrhosis because depends on the stages and athophysiology of the disease.

I. Early stage: Asymptomatic

II. Late stage:

a. Malaise

b. Fatigue

c. Lack of appetite

d. Frequent loose motion after eating

e. Distended and heaviness of abdomen

f. Pain in left hypochondriac

g. Muscle wasting

h. Hemorrhoids

i. Dizzy

j. Jaundice

k. Skin itchy

l. Hepatic faces

m. Caput medusa

n. Disorientation: Dementia and amnetia (Figure 9).

Diagnosing Cirrhosis: Blood Works

a. Blood tests to check liver functions: Albumin and Total serum protein.

b. Prothrombin time/INR.

c. Bilirubin

d. Liver enzymes: AST, ALT and lactate dehydrogenase.

e. Alkaline phosphatase.

f. Hepatitis B and Hepatitis C antigen and antibody.

g. Alpha 1-antitrypsin.

h. Blood alcohol test.

i. Antinuclear antibody (ANA), Anti- smooth muscle antibody (ASMA), Anti-mitochondrial antibody (AMA).

j. Complete blood count (Figure 10-12).

Insult of Liver Cells

A. Stellete cells

a. Fibrin, collagen and intercellular matrix release.

B. Hepatocytes

a. Formation of regenetive nodules.

C. Sinusoid compression

a. Obstruction of blood flow.

b. Results in portal HTN (Figure 13 & 14).

Portal Hypertension

PV dilation due to obstruction. Reverse flow to SMV, IMV, and SV. Blood that cannot enter into PV must return to systematic circulation via anatomotic sites. Results: Esophageal varices, rectal hemorrhoids, caput medusa, etc (Figure 15-29).

Complications

a. Portal hypertension, liver failure and liver cancer

b. Distended abdomen due to ascites.

c. Wasting of muscles.

d. Blood vomiting.

e. Rectal bleeding.

f. Defect in blood clotting.

g. Gynecomastia.

h. Spider angioma.

i. Electrolyte imbalance.

j. Caput medusa: Visible veins around the umbilicus.

k. ETC (Figure 30-33).

Results of Liver Failure

a. Accumulation of toxic materials in blood.

b. Decreased production of clotting factors.

c. Decreased production of plasma proteins.

d. Poor metabolism of estrogen.

e. Enzymes abnormalities.

f. Increase Bilirubin.

g. Platelets count decrease.

Conclusion

A. Diagnostic procedures

a. Patient history.

b. Bedside physical exams.

c. Blood works.

d. Ultrasonography of liver (Figure 34).

B. Sonographic characteristics of cirrhosis:

a. Hyper echoic liver

b. Course texture.

c. Irregular/nodular surface.

d. Small liver

e. Caudate lobe hypertrophy and decrease echogenicity.

f. Non visualization of hepatic veins.

g. Portal vein dilation >13mm.

h. Portal vein reverses flow.

i. Portal vein hypertension.

j. Dilation of splenic veins, SMV, IMV with reverse flow

k. Splenomegaly.

l. Ascites.

m. Recanalization of umbilical vein [1-11].

Acknowledgements

a. Karen Soto, DMS program full-time Student, New York Medical Career Training center

b. Miao Chen, Bachelors in science, DMS extern student, New York Medical Career Training Center

c. Institutional staffs of New York Medical Career Training Center

Questions?

A. What is the most common cause of Liver Cirrhosis in western countries?

B. What are the most common viruses that cause liver cirrhosis?

C. Which cell in the liver has a greater impact on producing cirrhosis?

D. Most of the complications of liver cirrhosis is due to?

E. All of the following are sonographic appearances found in advanced stage of liver cirrhosis except?

a. Hyperechoic liver

b. Course texture

c. Hepatomegaly

d. Irregular nodular surfaces

F. Most of the liver cirrhosis can be diagnosed by taking clinically history, physical examination, lab tests and sonographic evaluation of the liver?

a. True

b. False References

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