The chemotherapy in the current cancer therapy a main pillar of possible treatments
When a cancer is a malignant neoplasm of tissue (malignant tumor, malignancy, malignant neoplasm). Cells multiply in an uncontrolled malignant tumors that grow into nearby tissue and can be secondary tumors (metastases) in other areas of the body. It can cause serious, sometimes life-threatening sequelae. In malignant tumors, chemotherapy is often (treatment with certain drugs) is useful.
Causes
By damaging the genetic material it comes to unrestrained cell growth of cancer tumors.
Damaging effects of various kinds can increase the risk for cancer. These include smoking (including increased risk of lung cancer) and alcohol (among other things, increase risk of esophageal, colon and pancreatic cancer) as well as various factors of an unhealthy diet (too much fat, for example). By contrast, dietary fiber reduce the risk of colorectal cancer. Also known as antioxidants can prevent genetic changes and thus prevent cancer. Conducive to the formation of (malignant) tumors are against infections with various viruses (such as HPV or hepatitis B), and certain poisons in the environment. Similarly, radiation for cancer may be responsible, for example, ultraviolet rays in sunlight in skin cancer. Most tumors occur in older age groups, but also some species have their peak incidence in childhood or adolescence. There is often a hereditary component of cancer, for example, the risk of certain cancers is increased when relatives are ill. On the floor of benign tumors may sometimes form a malignant tumor (eg, colon cancer in polyps).
It is, however, even without the presence of risk factors is not excluded that a malignant tumor develops.
Symptoms
The majority of the tumors developed initially as nodular tissue overgrowth in one place. However, there are also tumors that spread rapidly in the body, such as leukemia (uncontrolled proliferation of progenitor cells of the blood cells) and lymphoma (lymph cells affect). Malignant tumors that arise from surface cells (for example, also from internal organs), is called a carcinoma. Those arising from muscle, bone, connective and soft tissue, called a sarcoma.
Basically, cancer can develop from all body cells at any point. On specific organs and locations for cancer development is far more common than others. Malignant solid tumors grow in structures in the area. These can be damaged or destroyed. There may be secondary tumors (metastases) in other areas of the body or in lymph nodes near absiedeln and also prepare serious problems there.
It can be found in malignant tumors is not uncommon side effects. Often there is a decrease in body weight (cachexia) and (eg bleeding) to anemia (anemia). For hormone-producing tumors, the hormonal balance is messed with, so that different syndromes may develop. This includes, for example in bronchial carcinoma (lung cancer), the so-called Cushing's syndrome due to excessive formation of ACTH, which causes an increased secretion of cortisol.
Leukemia as a special form of a malignant (cancerous) tumor found relatively frequently in childhood. Leukemia, lymphomas and other tumors of hematopoietic cells have many subspecies, which have partly in common, but also a variety of symptoms. For example, often a lymph node swelling, paucity of red blood cells (called anemia, anemia), and physical weakness is present.
Diagnosis
It made medical history (asking the patient about symptoms and medical history) and the basic physical examination. Often, imaging techniques are useful in tumors, such as X-ray, ultrasound or computed tomography. Also a blood test is performed. The exact type of tumor can often only through a sample (biopsy) will be determined by histologic examination. Other diagnostic methods are carried out depending on the type of tumor. Before chemotherapy is important to note the expansion of malignancy, possible secondary tumors (metastases), and possible comorbidities.
Differential Diagnosis
Depending on the type and location of the tumor must be distinguished several other diseases. These include other types of benign or malignant tumors, infections or other causes hormonal imbalance.
Therapy
Conservative therapy
Chemotherapy is the treatment of malignant tumors with drugs. The advantage for surgery and radiation, that is not an area, but the whole body is achieved. The cancer cells are inhibited in growth or even disappear partially or completely. Even the immune system is then effective.
Chemotherapy for an individual plan is created. This depends on several factors that apply to the patient. If could be removed completely by surgery or by radiation therapy or other measures of the tumor, chemotherapy is used to protect the health and long term to prevent a recurrence (relapse) of malignant neoplasm (adjuvant therapy). In remaining cancer cells as possible trying to bring the malignant disease by chemotherapy to heal (curative treatment). This must often be addressed by the high dose and high efficiency also at risk for serious side effects. If no cure is found medically thought possible, so the chemotherapy is done in order to achieve the longest possible life support with minimal symptoms (palliative treatment).
For several different chemotherapy drugs are used. Some can be swallowed as a tablet or capsule, others will be given by injection or infusion. In many cases, multiple drugs are given together, sometimes enough even a single drug. Even with further chemotherapy treatments can be combined.
Drugs that are candidates for chemotherapy in question are, among other neurotransmitters, which serve the understanding of cells, hormones and derivatives, as well as immunologically active substances. For example, are often used alkylating agents, anthracycline derivatives, antimetabolites, platinum-containing drugs, taxanes, topoisomerase inhibitors, and vinca alkaloids.
Before the start of the chemotherapy regimen is established. Here is governed, what drugs are given in what order. If a regimen performed several times in a row, this is called a treatment cycle. The treatment plan, or the therapy cycles during the period of chemotherapy may be modified, if interim study results suggest. Regular examinations are performed, whether the chemotherapy and whether strikes have occurred to any serious side effects.
Operation | Possible extensions of the operation
In many but not all solid tumors, surgery to remove the tumor is indicated. One of the reasons that speak against an often-operative removal of the tumor, is the presence of secondary tumors (metastases).
Complications
Drugs for chemotherapy may not only interfere with the function of cancer cells, but also that of the healthy body cells. The side effects depend on the particular drug and the administered dose. Often must be entered into a certain risk for severe side effects, so the drug can exert its full effect. This can sometimes be life threatening.
When chemotherapy often occurs a physical performance degradation. By restricting the formation of red blood cells can result in so-called anemia (anemia) come in to show signs of fatigue and performance limitations. A decreased production of white blood cells leads to a weakening of the immune system with increased susceptibility to infection. If fewer platelets (platelets) produced, it can often cause bleeding and bruising after only small effects, or at worst, even without external causes. It often results in the loss of hair, the hair grows back after a few months, however. There may be nausea, vomiting, anorexia and mucositis. Allergic reactions are possible, all grades. Also on the liver, kidneys, heart, skin and nervous system chemotherapy may have adverse effects. Sometimes (especially with additional radiotherapy) the further development of malignant tumors should be encouraged. Depending on the drugs used to give more specific side effects. Infertility is possible to decrease sexual desire can. As an unborn child can be damaged by the chemotherapy drugs, pregnancy should be avoided during and for one year after the treatment period.
The agents are injected, can be pain and swelling, and rarely develop infections, bleeding, nerve damage or tissue death (necrosis).
Note: This section can only give a brief outline of the most common risks, side effects and complications and is not intended to be exhaustive. The conversation with the doctor can thus not be replaced.
Forecast
The prognosis is highly dependent on the nature and extent of the tumor as well as choosing the right therapy means. In many cases, the tumor reduced in size by chemotherapy or disappears completely. However, often have some risks and side effects are discussed in order to get rid of the cancer attack. There will always be weighed prior to treatment, whether a greater benefit or harm is expected. A guarantee that the treatment strikes can not be given.
Notes
Before the operation
Other medications, taken by the patient, must be communicated to the treating physician.
After the operation
Scheme and dose of medication should be scrupulously observed. Also dates for medical checks should be carried out.
If the risk for infections caused by chemotherapy is greater, the patient should avoid crowds and stay in people not suffering from an infectious disease (eg, even otherwise innocuous common cold).
Even during chemotherapy, the patient in consultation with the doctor often perform normal activities and may also pursue his profession.
In depression, which may arise during the illness, such as psycho-oncological counseling can help to combat them.
In case of special features which may indicate complications such as fever, inflammation or bleeding, as soon as possible, the physician should be contacted. Facilities that are available in many places. Ask for it and for self-help groups in your area
Cancer chemotherapy | malignancies | malignancy