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LIVER TRANSPLANTATION
D. Banerjee
Transplant
Surgeon
Liver is an essential organ for life. It has two lobes,
right and left. It is situated in the right upper
abdomen of human and weighs approximately 2% of the
total body weight. Liver has many functions like
synthesis of proteins, production of bile and metabolism
of various substances.
T E Starzl reported the first human liver
transplant from University of Colorado, USA in 1963.
Overcoming many setbacks in the early years, liver
transplantation rapidly evolved in the 1980s to
become a highly successful modality of treatment for
patients with cirrhosis and fulminant hepatic failure.
The causes of cirrhosis include chronic viral hepatitis,
excessive alcohol intake, autoimmune disease, biliary
cirrhosis, sclerozing cholangitis etc. Fulminant hepatic
failure, can result from viral infection, paracetamol
poisoning and other rare causes.
At present liver transplantation is a standard treatment
available in many countries including some developing
countries like Brazil and Israel. In India there are
very few centres which have started to develop this
service for liver failure patients. .
The source of the organ for transplantation
could either be a brainstem dead heart beating cadaver
or a live person. The whole of the liver is taken out by
operation from a cadaver for transplantation. From a
living person only one lobe of the liver either right or
left is removed by operation and implanted into the
liver transplant recipient patient. Before implanting,
the diseased liver of the recipient is removed. The
residual liver left behind in the live donor grows in
size to compensate for the loss of one lobe. As a result
the donor can resume his / her normal life after
recovering from the operation. However, the donor
operation is not free from risks or complications.
After transplantation of the liver, complications like,
rejection of the organ, infections as a result of using
immunosuppressive medicines and recurrence of the
previous liver disease like viral hepatities in the new
liver, are not uncommon. Notwithstanding these
drawbacks, outcome of liver transplants in most patients
is very good compared to other therapies available.
Patients who have developed liver tumours prior
transplantation have a poorer outcome compared to
patients with other benign diseases. With the advent of
modern immunosuppressive medications used for
countering immunological rejection of transplanted
organs, liver recipients can expect to live many years
of useful life post transplant. |