The article argues, based on cancer survival statistics, that "scientists should stop trying to cure cancer and start focusing on finding it early." The author notes that in the case of ovarian cancer, for example, discovery at stage I or II the 10-year survival rate is almost 90%, while the survival if diagnosis occurs later - at stage III or IV - drops dramatically to 20%. This makes sense. In early stages, before cancer has metastasized and spread, straightforward surgical intervention can remove most - if not all - of the cancer. Once it has spread, it is more difficult to treat and options are limited to more harsh chemo and radiation treatments.
The article, however, ignores another reality of the numbers it cites: early detection will improve survival rates even without any other intervention. The reason is the way cancer survival is reported. Typically survival is measured as relative 5-year survival, meaning the percentage of people still alive five years after diagnosis, compared with the general population. Early detection shifts the goalposts: the 5-year window now starts at an earlier stage. Even if these people have exactly the same progression as someone with a late-stage diagnosis, the survival rates will look much better.
Of course, we don't want to give up on early detection any more than improving treatment options. We do, on the other hand, want to understand what the numbers mean and how they're derived before we start changing policies or strategies based on them. Ideally with a combination of early detection and improved intervention we can start using intervals longer than 5 years as our standard measure of cancer survival.
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18 comments:
It was interesting to read about how many tumours you can detect early with improved imaging in an otherwise healthy individual. The problem is trying to identify which ones are a threat, which seems completely outside our knowledge....
The previous comment is quite on target & will represent another inflation of the survival statistics with early detection -- many more of these patients have tumors that will never become lethal and hence do not represent 'cures'.
Since there are psychological and physiological (not to mention financial) costs to cancer treatment, early detection is not necessarily entirely benign.
Detection techniques and even treatments for cancer are certainly inherently flawed. It should come down to the availability of GOOD information and GREAT, COMPASSIONATE advice on the part of the clinician. In the end the choice has to be made by the patient. Then again, the definition of "informed" these days is sketchy at best...
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Cancer is also called malignancy. basically, this is an abnormal growth of cells. cancer has many types like breast, skin, lungs, colon, and so many others as well there is a treatment if it's diagnosed early stage, also this is happening that only half or more then half people diagnose earlier. the five-year survival rate of people diagnosed with last stage lungs cancer
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"Researchers should not try to treat cancer and start focusing on early detection," according to the results of a biopharmaceutical study. The authors note that, ovarian cancer, such as diagnosed at stage 1 or 2, 10-year survival of nearly 90%, survives if diagnosed later. 3 or 4 - a reduction of 20%. This makes sense. In the early stages of cancer spread and exposure to many procedures surgery can eliminate most of the cancer. When it does, it can be difficult to treat, and options are limited to chemical and explosive agents.
Cancer is a disease that can be cured if the treatment is done in time. Cancer can be very difficult for a person to survive in the last stage. In the final stage of cancer, the patient is given chemotherapy and it is very painful. Chemotherapy is a drug treatment that uses powerful chemicals to kill fast-growing cells in the patient`s body and it is most often used to treat cancer since cancer cells grow and multiply much more quickly than most cells in the body.
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Intriguing read in Wired about the game-changing potential of early cancer detection! As you stay informed, consider transforming your surroundings with the expertise of Dubai interior fit-out companies for a space that supports well-being and innovation.
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