Breast Cancer Screening Leads To Over-Treatment Of The Patients
Monday, August 3rd, 2009A latest research has been published in the British Medical Journal, also known as BMJ. In this study, Peter Gotzsche and Karsten Jorgensen from Nordic Cochrane Centre, Copenhagen, analyzed the trends of breast cancer at least 7 years before and after the starting of government run breast cancer screening programs in several parts of Britain, Australia, Norway, Sweden and Canada.
The study revealed that once the screening programs started, more breast cancer cases were unavoidably identified. If a screening program is successful, it should be helpful in detecting breast cancer at early stages, and therefore it should lead to a decrease in the number of breast cancer cases found in older women. However, the study conducted by Gotzsche and Jorgensen revealed that the screening systems of breast cancer, which is usually tested on women between 50 to 69 years of age, reported a lot more cases than the number of cases that were previously identified. Overall, the study states that around one third of the breast cancer cases identified by the screening process did not need to be treated at all.
It is a fact that some of the cancers never cause any symptoms in the patient and grow too slowly that they never affect the patient’s health. As it is not possible to differentiate between a deadly cancer and a slow-going one, any cancer that is identified has to be treated. But, breast cancer treatment can also have some side effects harmful for the patient and it can also lead to psychological downturn for women.
For several years, women have been urged to undergo a breast cancer screening process without knowing the risks involved. As a consequence, they have to undertake an unnecessary cancer treatment for a problem that could never have affected their health. Similar is the case with prostate cancer. There have been long debates about the screening of prostate cancer because it has been realized that screening over-diagnoses the patients. According to a study conducted in Netherlands, at least 2 out of 5 prostate cancers were developing too slow that they could never be harmful for the person.
The national health system of Britain recently drained its pamphlet that invited women to have a breast cancer screening because the critics complained that the pamphlet did not told about the over-treatment of cancer patients. However Laura Bell of Cancer Research UK said that women should still be invited to go for screening but they also need to be informed about the pros and cons of breast cancer screening.