Posts Tagged ‘Acute Lymphocytic Leukemia’

Acute Lymphocytic Leukemia in Children

Comments: 0September 27th, 2011 by admin



Cancer in any of its forms is known to the society as a condition of adults or elder persons; still it can occur at any age even during the care-free childhood period. Children diagnosed with cancer must rapidly grow up and learn hoe to face the illness as well as their parents that will have to be able to care for them.

The most common form of malignant tumors in children is the acute lymphocyte Leukemia and it is known to affect about 2500 pediatric patients every year. The acute forms of Leukemia develop rapidly and spread to the entire body in just a few months if left untreated. Knowing how to recognize the disease seems to be most important as Leukemia can lead to death in a very short time if not treated properly.

Leukemia develops inside the bone marrow and spreads to the lymph nodes, liver, spleen and nervous system. Cancerous marrow cells produce abnormal blood cells; insufficient or inefficient red blood cells lead to anemia, a low number of white blood cells leaves the body helpless to infections, and decreased number of platelets caused bruising and bleedings. General symptoms like headaches, weakness or vomiting also occur when the cancer reaches other main organs.

No way of prevention is known to us today as leukemia cannot be linked to any lifestyle factors. A good life expectation can only be reached if a doctor is seen immediately when symptoms occur and a proper treatment is quickly administered.

The most specific diagnose is the bone marrow biopsy when a small amount of marrow is extracted from the thighbone with a needle. The microscopic examination of the tissue can establish the presence of cancerous cells inside the bone marrow. Further analysis includes blood tests for searching changes in number and function of the three vital blood cells. In Leukemia a risen number of white cells are found together with a decreased number of red ones. Through the blood tests certain diagnose of the particular form of blood cancer can be established.

Cancer cells are dangerous as they divide very quickly and an efficient primer treatment with chemotherapy must stop their multiplication. More types of chemotherapeutics are required to kill all cancerous cells as Leukemia is known to spread very rapidly throughout the whole body. The drug therapy is a long-lasting process and can produce several side-effects such as hair loss, infections, tiredness, nausea, anorexia and vomiting.
New ways of therapy are searched that should only affect the cancerous cells unlike conventional drugs. The stem cells transplantation targeting to replace the lost marrow working cellularity seems to give hopeful results.

Blood cancer can reoccur and therefore a treatment with stem cells can give more effective results. If Leukemia cannot be treated, doctors try ways of making the patient’s life with cancer easier by relieving the symptoms. About 85% of the children that have survived 5 years without cancer reoccurring are considered to have been cured.

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A Short Classification Of Leukemia Cells

Comments: 0June 10th, 2011 by admin



In the bone marrow are produced the leukemia cells which are abnormal and immature.These cells are classified in two types:lymphoid leukemia cells and myeloid leukemia cells.The abnormal, immature cells called leukemia cells are produced by blood-forming tissue and these are named after the lymphoid or myeloid cells.

It is better to know about the normal blood cells and about the form of these.So,in the bone marrow,which is the soft material in the center of most bones, are formed the blood cells.The immature blood cells called stem cells and blasts are produced by the marrow.

These blood cells become mature,they can be formed into one of three types of mature blood cells like:red blood that carry oxygen and other materials to all tissues of the body,white blood cells that fight infection and disease,platelets that help prevent bleeding by causing blood clots to form.

One of two types of stem cells are created by mature blood cells like lymphoid stem cells or myeloid stem cells.As they grow they become lymphoid blasts, they transform in lymphocytes and then passes into white blood cells.In the same way myeloid cells grow,passes into myeloid blasts, then myelocytes and finally they become either white blood cells, red blood cells or platelets.

Abnormal cells are produced in the bone marrow and they can be either abnormal lymphoid cells or myeloid cells;appears only at people with leukemia.Lymphocytic leukemia is formed by the abnormal lymphoid cells and the myeloid leukemia is created by the abnormal myeloid cells.The types of leukemia based on the leukemia cells are four and they are the following:chronic lymphocytic leukemia (CLL),chronic myelogenous leukemia (CML),acute lymphocytic leukemia (ALL) and acute myeloid leukemia (AML).

Too many stem cells develops into either abnormal lymphoblasts or lynphocytes conduct to the appearance of lymphoid leukemia cells.Unfortunatelly lymphoblastic and lymphocytic are not abble to fight infection because of the number of lymphocytes arrises in the blood and bone marrow,there is less space for healty white blood cells,red blood cells and platelets, which can cause infection anemia and easy bleeding.

At people with leukemia there are three types of lymphocytes they became abnormal:B lymphocytes that make antibodies to help fight infection,T lymphocytes that help B lymphocytes make the antibodies that help fight infection and natural killer cells that attack cancer cells and viruses.It is important for as to know the classification of these cells and their role.

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Statistic Data on Leukemia

Comments: 0March 7th, 2011 by admin



Leukemia is the blood cancer form and originates in a malfunctioning bone marrow that tends to produce abnormal red and white cells in an increased rate. The most important four types of Leukemia are the acute and chronic myelogenous leukemia and the acute and chronic lymphocytic Leukemia. The name of the condition stands for the cell type involved.

The acute type of leukemia develops with an increased production of abnormal white cells making the body unable to fight infections; red blood cells and platelets are insufficient and the organism suffers from bruising, bleedings and anemia. Chronic forms of Leukemia are not as aggressive as they give the normal cells time to regenerate.

About 25000 new equal cases of acute and chronic Leukemia appear every ear. Most cases appear in adults and persons over 60 years but the acute lymphocytic Leukemia has an increased rate in children. Annually, about 10000 cases in adults are diagnosed as acute myelogenic Leukemia, 8000 are chronic lymphocytic Leukemia, 500 are chronic myelogenous forms and about 3500 are acute forms of lymphocytic Leukemia. The rest of the cases are unclassified blood cancer types.

All types of Leukemia are most commonly encountered in men than in women. Men subjects cover about 56% of all Leukemia new cases in a year. Americans with European descent seem to be more affected by cancer than those with African origins; about 131000 new cases of cancer are detected in African Americans every year but most of them are not related to blood cancers.

Americans with Indian or Hispanic origins are far more affected by Leukemia than African Americans and about 50% of the cases are encountered in male subjects. Elderly persons are most highly affected inside all populations.
Minority groups like Caucasians are more affected by Leukemia forms than other ethnic groups like Chinese, Japanese and Koreans. European descent children show increased rate of susceptibility compared to African American children.

Most of the new occurred cases of cancer in children below 15 are of Leukemia. About 2500 new cases of acute forms of lymphocytic leukemia are identified in the USA annually and it tends to be the most encountered form of cancer in children. High percents of the cases occur in children aged 3-4 and less in infants or 19 years old patients. In the last 25 years the chance of cure in specialized centers has increased due to new therapy methods.

People over 40 and older persons are more touched by acute myelogenous Leukemia and the secondary Leukemia type found in adults is chronic lymphocytic leukemia.

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Childhood Leukemia

Comments: 0January 5th, 2011 by admin



Leukemia severely affects a person’s immune system; the disease is characterized by low levels of leukocytes of white blood cells, which play an important role in the body’s defenses against disease. This disease can lead to other complications such as infections. However, for people who already have compromised immune systems, such as children and the elderly, developing leukemia can have some severe effects and complications. For children, the effects of leukemia can be very pronounced because battling the disease can take a toll on their fragile bodies.

Types of childhood leukemia

Just like in adult leukemia, children who develop the disease suffer either from large numbers of abnormal white blood cells or low levels of the white blood cells. Among cancers in children, leukemia accounts for about 25% of cancer cases. There are also different types of leukemia among children, categorized into two major categories: acute and chronic. Acute leukemia, or rapidly developing leukemia, is further divided into two types: Acute Lymphocytic Leukemia (ALL) and Acute Myelogenous Leukemia (AML). Acute leukemia accounts for 98% of all cases of childhood leukemia, with ALL being the most common. Chronic leukemia, or slowly developing leukemia, has only one type, which is Chronic Myelogenous Leukemia (CML), and it is very rare.

Symptoms and Treatment

The symptoms that a child with leukemia exhibits are similar to the symptoms that adults with the disease exhibit. Mostly, the symptoms are manifestations that the child’s immune system is compromised, including increased episodes of fever and other infections. Children with leukemia also suffer from anemia and the other blood abnormalities found in most leukemia cases. In addition, other symptoms include bruising and bleeding very easily, pain in the bones and the joints, swollen lymph nodes, malaise, and a poor appetite.

Usually, ALL is treated with chemotherapy. However, the dosage differs from what is given to adults. The medication that is given during this therapy is very potent, which is why for children, smaller dosages are given.

The effects of leukemia can be very hard to deal with, especially for children whose immune systems can be severely compromised by the disease. However, statistics show that children with this disease exhibit some of the highest remission rates, which means that with proper treatment, the chance of beating this disease is very high among children.

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Child Leukemia – Generalities, Symptoms and Treatment

Comments: 0June 7th, 2010 by admin



Leukemia interferes with the body’s production of white blood cells. These cells are supposed to fight infections with viruses or bacteria, and when someone has leukemia, they are defective and their number is largely increased, but because they are not fulfilling their role any more, although their number can increase ten times the body’s defense system is seriously weakened and any infection can be very dangerous.

Unfortunately leukemia can affect young children too, and the number of child leukemia cases keeps increasing.
There are two types of leukemia – acute leukemia – a cancer that develops and evolves very fast and it affects all the white blood cells, and chronic leukemia – it develops slower and healthy white blood cells can still be found.

More than 95% of the child leukemia cases are acute leukemia. Acute leukemia can also be divided into acute acute myelogenous leukemia and lymphocytic leukemia acute myelogenous leukemia because there are two types of blood cells, and each type of leukemia affects a different kind of blood cells. More than half of the children with leukemia have acute lymphocytic leukemia.

The symptoms of acute leukemia start with fever, and continue with many infections, because the child is weak against any damaging foreign microorganisms.
When the disease advances the child becomes anemic and begins to have a pale color. He will always feel a sensation of weakness and fatigue which will prevent him from playing outdoors.
All leukemia patients, including children can be bruised very easy, and the often bleed for no reason. When bleeding occurs it cannot be stopped for a long time because leukemia affects the cells responsible for healing wounds.

If the illness is not discovered and it is left untreated it starts spreading through the body and it can reach the brain, affecting some of the senses and causing headaches.

In order to diagnose child leukemia the child must go through a series of special tests. If the result is positive then therapy must begin as soon as possible. First some new tests must be performed to determine what kind of therapy works best. In most cases chemotherapy is used because it has the highest survival rate. Chemotherapy is also accompanied by drugs.
The purpose of the therapy is to heal the bone marrow, the organ that produces the defective blood cells and to kill all the malfunctioning cells from the body. If the therapy is successful it must still be continued because the cancer can re-appear.
In some more severe cases a bone marrow transplant is needed.

The good news is that therapy is getting better and better and most of the children survive this illness, but the survival rate depends on how far the cancer has advanced and on what form of it the child has.

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Survival Rates of Patients with Leukemia

Comments: 0January 12th, 2010 by admin



Although medical science has evolved significantly in the last decades, the treatment of leukemia is still a major issue in present. Modern medicine doesn’t hold the cure for leukemia and medical treatments available these days provide differentiated results. Survival rates depend on the promptitude of diagnosis, the type of treatment and the patients’ responsiveness to specific cancer therapies and treatments. Although leukemia can’t always be completely overcome, the progression of the disease can be slowed down and its malignant effects can be contained with the help of existent cancer treatments. Thus, the life expectancy of patients with leukemia has risen considerably in the last three decades. By contrast, the mortality rate registered among patients with leukemia has known a pronounced decrease in the last decade.

The treatment of leukemia is focused towards achieving a complete remission with minimal side-effects. Complete remission refers to absence of leukemia traces at cellular level. Patients who present no evidence of malignant cellular activity after completing the treatment of leukemia are considered to be completely cured. By contrast, relapse indicates a recurrence of leukemia specific symptoms and physiological signs.

In the case of patients with acute leukemia, a remission that lasts for more than five years after the treatment suggests a complete recovery. This five-year period is considered to be critical for leukemia sufferers, as it can make the difference between relapse and complete recovery.

In the last few decades, the five-year survival period of patients with leukemia has tripled. While in the 60′s the five-year survival rate was around 15 percent, nowadays it revolves around 50 percent. This five-year survival period is strongly influenced by patients’ age and the type of leukemia. Statistics indicate that the five-year survival rate for patients with acute lymphocytic leukemia (ALL) is around 60 percent, while the five-year survival rate for patients with chronic lymphocytic leukemia (CLL) is higher, reaching the value of 70 percent. By contrast, the prognosis of patients with myelogenous leukemia is less favorable. The same five-year survival rate for patients diagnosed with acute myelogenous leukemia (AML) is around 14 percent, while an estimated 32 percent of patients with chronic myelogenous leukemia (CML) exceed this five-year survival period.

The five-year survival rate for children diagnosed with acute lymphocytic leukemia revolves around the value of 80 percent, while the overall survival rate of children with acute lymphocytic leukemia is less than 45 percent. This type of leukemia is the most common form of cancer diagnosed in children. Due to the fact that it predominantly affects young patients with ages between 3 and 15, the disease is referred to as childhood leukemia.

In the United States, the mortality rate for children with leukemia has decreased with 60 percent in the last three decades. In spite of this fact, leukemia is still the leading cause of death among young patients with ages under 15.

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