Gamma Knife Surgery Offers New Hope

by CB on 29. Jun, 2010 in Brain Tumor

Gamma knife surgery which had been proven safe and effective, is offering new hope to patients suffering from nervous system diseases across the globe. With its non invasive surgical procedure, Gamma Knife provides patients with a better alternative in treating tumors, vascular deformation, trigeminal neuralgia, Parkinson’s Disease, Alzheimer’s Disease and other conditions of the brain that were once require an open brain surgery.

Presently Asian Medical Tourism together with Philippine Gamma Knife Center had made Gamma Knife surgery available to Filipinos. Philippine Gamma Knife Center has state of the art facility and equipments needed to perform the said surgery. The Center uses computerized data from imaging tests, such as CT scans, MRIs or arteriograms to pinpoint problem areas in the brain. As a result, Philippine Gamma Knife Center destroys the cancer cells using multiple beams of gamma radiation with unparallel precision.

With its sub-millimeter accuracy Gamma Knife Surgery reduces the risk of damaging surrounding normal tissues and minimizes the brain’s exposure to the radiation. Gamma Knife surgery is recognized worldwide as the preferred treatment for brain tumors, arteriovenous malformations and brain dysfunctions such as trigeminal neuralgia. It is supported by over 2,500 medically reviewed research articles that are primarily published in neurosurgery journals.

This fact coupled with published reports indicated that the Gamma Knife can be used as an alternative to adjunctive therapy in the treatment of residual or recurrent lesions that were not removed by conventional brain tumor surgery. Gamma Knife surgery can be especially useful for those patients who are not suitable for standard surgical techniques due to illness or advanced age. In many neurosurgical cases, Gamma Knife is the only feasible treatment.

To know more about gamma Knife Surgery and other medical procedures offered by Asian Medical Tourism such as hormone therapy and cosmetic surgery. Visit http://www.asianmedicaltourism.com.

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What Are the Treatments for Metastastatic Lung Cancer?

There are two basic types of lung cancer, small cell lung cancer and non-small cell lung cancer. Metastatic cancer is lung cancer of either type that has spread beyond the lung of origin to the second lung or distant organs such as the brain, bones or liver. According to the American Society of Clinical Oncology, or ASCO, metastatic lung cancer is rarely curable, thus treatment is aimed at controlling symptoms and prolonging life. Treatment of metastatic lung cancer of any type, as described by the American Cancer Society, depends on the patient's state of health and the extent of spread of the cancer. There are several treatment options.

Gamma Knife surgery for pituitary adenomas: factors related to radiological and endocrine outcomes.


Abstract

Object Gamma Knife surgery (GKS) is a common treatment for recurrent or residual pituitary adenomas. This study evaluates a large cohort of patients with a pituitary adenoma to characterize factors related to endocrine remission, control of tumor growth, and development of pituitary deficiency. Methods A total of 418 patients who underwent GKS with a minimum follow-up of 6 months (median 31 months) and for whom there was complete follow-up were evaluated. Statistical analysis was performed to evaluate for significant factors (p < 0.05) related to treatment outcomes. Results In patients with a secretory pituitary adenoma, the median time to endocrine remission was 48.9 months

Brain Cancer – Causes, Diagnosis, Symptoms, Treatment and Prognosis

http://articles-updated.com/health/cancer/brain-cancer-causes-diagnosis-symptoms-treatment-and-prognosisMalignant brain tumors occur in about 4.5 people per 100,000 population, they may occur at any age but brain cancer is the leading cause of cancer-related death in patients younger than age 35. In adults, incidence is generally highest between ages 40 to 60.

There are two main types of brain cancer. Primary brain tumors start in the brain. Metastatic brain tumours start somewhere else in the body and moves to the brain. The most common tumor types in adults are gliomas and meningiomas. In children, incidence is generally highest before age 1 and again between ages 2 and 12. The most common types of brain tumour in children are astrocytomas, medulloblastomas, ependymomas and brain stem gliomas.

CAUSES OF BRAIN CANCER

What causes brain cancer is not exactly known but there has recently been a great deal of speculation on the role of cell phone radiation in the development of brain cancer. In fact, while studies generally have shown no link between cell phones and brain cancer, there is some conflicting scientific evidence that may be worth additional study, according to the FDA.

PGI told to shut gamma knife unit

Anuja Jaiswal
Tribune News Service

Perhaps having learnt lessons from the negligence that led to the radioactive leakage of cobalt-60 in Mayapuri, New Delhi, the Atomic Energy Regulatory Board of India (AERB) has ordered the Postgraduate Institute of Medical Sciences & Research to close down its gamma knife unit and cobalt machine in the absence of a medical physicist.

Confirming the move, PGI spokesperson Manju Wadwalkar said after receiving the instructions from AERB, the institute’s administration has suspended the procedure from May 14 till the appointment of a medical physicist, who is responsible for monitoring the radiation dose and its safe applications.

According to officials, since the recruitment procedure is lengthy, the gamma knife services - necessary for treatment of cancer - may not be available for a few more months.

The absence of the procedure at PGI is obviously going to result in difficulties for cancer patients undergoing treatment at the hospital. Many will have to pay exorbitant charges to get the treatment at private hospitals, as they would end up paying almost double than what it costs at PGI.

Sources said brain tumour patients would have to undergo traditional neurosurgery in the absence of gamma knife services at PGI. At private hospitals they will have to shell out Rs 1.5 lakh for the gamma knife procedure, which costs Rs 75,000 at PGI.

The sources also revealed that the posts of medical physicists are not in proportion to the number of machines being used for radiation therapy at PGI. Of the eight sanctioned posts only four have been filled. Recently one medical physicist resigned, thus taking the total number of vacancies to five.

According to AERB’s instructions, there should be a separate medical physicist for each radiation process including gamma knife procedures.

Talking to The Tribune, Wadwalkar said the posts have been advertised. “We are in the process of recruitment and the procedure will start soon,” she said, adding on an average almost ten gamma knife procedures were being conducted every month. Nearly 120 procedures have been performed during the past one year.

Gamma knife is a radio surgery procedure that uses high doses of radiation to kill cancer cells and shrink tumours, precisely to avoid damage to healthy brain tissue. Cobalt-60 is, among other things, used in radiography to treat cancer patients.

The treatment has proved effective for treatment of intracranial tumours - both malignant and benign - as well as vascular lesions in any locations.

The risks of gamma knife radio surgery are very minimal.

The treatment can be performed even in areas that are extremely difficult to access by open brain surgery. This facility was not available in northwest India before January 2009.

An Overview of the Gamma Knife Procedure

By Groshan Fabiola

Gamma knife surgery is one of the most successful methods of treating brain tumors and other brain disorders today. The gamma knife treatment is a complex and careful procedure that requires the collaboration of doctors and medical specialists from a wide variety of fields. The whole process begins first with careful patient selection, as not all patients afflicted with brain disorders are eligible for the gamma knife treatment. A multidisciplinary panel of neurosurgeons, radiation oncologists and other experts must analyze a patient’s history before he or she is approved.

Patient selection is based on a diagnostic examination that takes into consideration age and general health, and involves doing a tissue diagnosis and imaging studies. Patients who have previously had open brain surgery are still eligible for gamma knife treatment.

Once a patient is accepted for treatment, he will be admitted to the neurosurgery or brain tumor clinic of the facility where the procedure will take place. A head frame is attached to the patient’s head under local anesthetic. The frame is attached with four metal pins and securely fastened to help more accurately target the brain lesions. Once the frame is in place, MRI and CT imaging studies are conducted to precisely locate the diseased area that is going to be treated with the gamma knife device.

All of the data gathered from these studies is then put into the gamma knife device’s computer system. A team of neurological surgeons, medical physicists, radiation oncologists, radiologists, nurses, computer specialists, and physicians work to come up with the most effective plan for each particular gamma knife surgery procedure. Advanced computer software is used during these planning stages, which can take up to two hours depending on the location of the target area and complexity of the disorder.

Once the customized surgery plan is finished, the patient is placed into the gamma knife device, which consists of a comfortable couch with the patient’s framed head placed into the gamma knife chamber where the treatment can begin. The treatment itself typically lasts anywhere from 15 minutes to an hour, again, depending on the complexity of the operation. There is no pain involved and once the procedure is over, patients can usually leave the gamma knife facility that same day; periodic follow-up dates are arranged to track the surgery’s success. Today, the gamma knife is being used widely in trigeminal neuralgia radiosurgery and to treat vascular malformations, brain tumors, and some types of brain cancer.

For more resources regarding gamma knife treatment or even about brain tumor clinic and especially about trigeminal neuralgia radiosurgery please review these pages.

Article Source: http://ArticleDirectory.com

History of the Gamma Knife

 By Groshan Fabiola    

Gamma knife surgery has become one of the most successful non-invasive methods of treating brain tumors and other brain disorders. The gamma knife device itself is a complex medical instrument that uses gamma radiation to target precise spots in the brain. Specifically, 201 highly focused beams of gamma radiation intersect at the targeted spot, enabling surgeons to make highly precise incisions without the risk of damaging surrounding healthy tissue.

The first successful gamma knife was constructed at the Karolinska Institute in 1967 by the Swedish neurosurgeon Lars Leksell and his team. The history of the gamma knife development dates all the way back to the 1950s with Leksell and Professor Borje Larsson of the Gustaf Werner Institute. They began researching the combination of proton beams with stereotactic devices, which theoretically would enable them to pinpoint targets in the brain. The proton beam approach, however, turned out to be much too complex and costly.

Leksell and Larsson continued their research though, and in 1967 they successfully arranged the construction of the first ever Gamma Knife device, which used cobalt-60 as its energy source rather than proton beams. The original gamma knife unit was employed for functional neurological surgeries in Sweden for 12 years. When conventional psychiatric treatment failed, patients with pain, movement disorders and some kinds of behavioral disorders were treated with the gamma knife.

A second gamma knife unit was built in 1975 and was installed in the Karolinska Institute, becoming one of the most integral neurosurgical devices there. Other units were soon built and installed in other places. In the early 1980s, there were gamma knife units in Buenos Aires, Argentina, and Sheffield, England, and then in the United States, at the University of Pittsburgh and the University of Virginia.

Today, the precision and power of the gamma knife has been tremendously improved by the advent of advanced computer technology. Gamma knife surgery is one of, if not the most successful treatment for brain tumors and can be used effectively for acoustic neuroma radiosurgery. To date, more than 400,000 patients have been successfully treated with the gamma knife device, with zero mortality rate and minimal morbidity reported.

For more resources regarding gamma knife surgery or even about treatment for brain tumors and especially about acoustic neuroma radiosurgery please review these pages.
Article Source: http://ArticleDirectory.com

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