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Showing posts with label cancer screening. Show all posts
Showing posts with label cancer screening. Show all posts
Sunday, June 6, 2010
Cancer Screening Exaggerated
"The American Cancer Society, which has long been a staunch defender of most cancer screening, is now saying that the benefits of detecting many cancers, especially breast and prostate, have been overstated.
It is quietly working on a message, to put on its Web site early next year, to emphasize that screening for breast and prostate cancer and certain other cancers can come with a real risk of overtreating many small cancers while missing cancers that are deadly."
Go to http://www.msnbc.msn.com/id/33408887/from/RSS/ to read complete articleSunday, May 2, 2010
An Important Measure for Prevention
Years ago when I started on this journey in public health I learned that prevention was one of the most important factors in getting to good public health.
Since that time, about 40-45 years, this caveat seems to have fallen far from the path.
My father took a specialty in proctology in 1929. He did this because one of his sisters was misdiagnosed and died from colon cancer. One of his brother's also developed colon cancer and he asked my father to do his surgery. This was the time when my father developed the flat stoma where the colostomy collection pouch is placed on the body.
People as a rule don't generally like colonoscopies and don't seem to like the simple home test either.
Here's a newer option that seems to have the ability to prevent thousands of deaths for 5 minutes of your time.
Since that time, about 40-45 years, this caveat seems to have fallen far from the path.
My father took a specialty in proctology in 1929. He did this because one of his sisters was misdiagnosed and died from colon cancer. One of his brother's also developed colon cancer and he asked my father to do his surgery. This was the time when my father developed the flat stoma where the colostomy collection pouch is placed on the body.
People as a rule don't generally like colonoscopies and don't seem to like the simple home test either.
Here's a newer option that seems to have the ability to prevent thousands of deaths for 5 minutes of your time.
Five minute test could save thousands
By AP Apr 28th 2010 12:28PMA news study suggests a five-minute colon cancer test could reduce the number of deaths from the disease by about 40 percent.
Of the 170,000 people followed for about 11 years by the British researchers, more than 40,000 had a "flexi-scope" test, an exam that removes polyps, small growths that could become cancerous.
Researchers used the test, where a pen-sized tube is inserted into the colon, on people in their 50s. They also said patients only needed this test once in their lives. In the U.K., government-funded colon cancer screening doesn't start until age 60.
Dr. Wendy Atkin, a professor of surgery and cancer at Imperial College London led the research and said the flexi-scope test only needed to be performed once because polyps that grow in the bowel appear before the age of 60, so the possibility of cancer could be caught of the test was done on people in their fifties.
However, the test only works on the lower bowel, so other exams, like the fecal blood test, would still be necessary.
In the U.K. a fecal blood test it done bi-annually on people aged 60 to 74, and in the U.S. colonoscopies are most commonly test used to scan the entire colon.
Researchers compared those results to more than 113,000 people who were not screened. They found the flexi-scope test reduced peoples' chances of getting colon cancer by one third. It also cut their chances of dying by 43 percent. Worldwide, the disease causes 1 million cases and 600,000 deaths every year.
Some experts said they believe the findings have the potential to make some authorities reconsider their practices for finding and diagnosing colon cancer.
The American Cancer Society recommends several options for people over 50 to find polyps or to detect cancer early: a flexi-scope test, double-contrast barium enema or virtual colonoscopy every five years or a colonoscopy every 10 years.
"It's not for me to tell governments what to do," Atkin said. "But this is a very big effect, with a very quick and a very cheap test."
Dr. Durado Brooks, director of prostate and colorectal cancer at the American Cancer Society, said the study results would not change their colon cancer screening guidelines.
"We have long included (flexi-scope) tests as one of our preferred tests to prevent disease," he said. "I would hope clinicians look at this information and recognize there is some value in this test."
Dr. David Ransohoff of the departments of medicine and epidemiology, University of North Carolina at Chapel Hill, North Carolina, said the claim that the test only needed to be done once in a person's lifetime was "striking" and further follow-up was necessary to see just how long this protective effect lasts.
The results of the study were published online in the medical journal, Lancet.
Monday, December 29, 2008
Laxative Colonoscopy Prep Products and Kidney Damage
Laxatives are one of the most commonly overused products sold to consumers, over-the-counter (OTC). These same products, and others available by prescription only, have caused serious side effects associated with kidney damage (nephropathy) and dehydration.
The products are particularly risky for the elderly and people with existing heart, kidney and some gastrointestinal problems.
Since colon cancer prevention and screening are important health concerns, consumers are encouraged to be educated about using these products.
The products are particularly risky for the elderly and people with existing heart, kidney and some gastrointestinal problems.
Since colon cancer prevention and screening are important health concerns, consumers are encouraged to be educated about using these products.
Osmolar Phosphate Laxatives: Keeping Water in its Place
Osmolarity is a fancy word that refers to a basic rule of physics and biology and it is about how fluids - in this case it’s water – move in and out of cells based on the presence of electrolytes, most often sodium and potassium. Phosphorus and calcium are two other electrolytes that are important health and often work together.
Your body depends on a delicate balance of trace elements and enzyme reactions to keep humming like a top. When this balance is altered you run the risk of dehydration and problems with the way your kidneys work.
Simply put, when you ingest a large amount of sodium containing foods or liquids, the kidneys work to flush the excess sodium out of the body. It does this by removing fluid from inside the cells, from your tissues and organs and moves it through the kidneys or the gastrointestinal tract. This may lead to excessive urination and diarrhea. In the process you lose not only the water but your electrolyte balance is altered.
Phosphorus and calcium reactions with dehydration may lead to the formation of crystals or “stones” and reduction of kidney function.
Laxatives often become the culprit in these cases, especially for the elderly, those with heart failure, people with kidney problems, and people using prescription or over-the-counter (OTC) medication affecting kidney function (diuretics for example).
Oral Sulfur Phosphates as Preps for Screening for Colorectal Cancer
Currently colorectal cancer is the third most common cancer and it is the second leading cause of cancer related deaths, therefore screening and early detection have become an important public health issue.
Thorough bowel cleansing is an important part of preparation for this screening and it is crucial to find a product that is safe and easy use. The difficulty in getting more people to seek the screening may be increased because of concerns with the products.
One very popular laxative has been Fleet’s Phospho-Soda. The C.B. Fleet Co. of Lynchburg, VA recently, in a voluntary action, withdrew its oral, over-the-counter Fleet Phospho-Soda bowel cleansing solutions after FDA regulators warned of potential harm to the kidneys when the Phospho-Soda is used as a bowel cleanser.
While the FDA has not required a recall, Fleet also removed the EZ-Prep Bowel Cleansing System used to clear the bowels before a colonoscopy.
Information found urges anyone using Phospho-soda to review current FDA product information pages. They also state that it is important to follow your doctor’s guidelines and drink at least nine 8-ounce glasses of water daily to prevent dehydration.
The FDA is now moving to have these laxative products relabeled to include warnings and make them available only by prescription.
Other prescription products, Visicol and OsmoPrep, will add the new FDA required warning regarding potential kidney damage to their oral sodium phosphate products.
The concern at the FDA is that oral sodium phosphate products have been connected with kidney function problems such as acute phosphate nephropathy that can cause permanent damage and lifelong dialysis or death. In acute phosphate nephropathy, calcium-phosphate crystals deposit in the renal tubules inside each kidney.
When used as directed or at lower levels, the FDA stated there is no evidence that the OTC laxatives lead to kidney problems. The agency, however, started issuing alerts in 2006. Other data show that product lawsuits for oral sodium phosphate laxatives, including lawsuits where OSP product users developed acute phosphate nephropathy began appearing in 2003.
While Phospho-soda has been the bowel prep product used and recommended by physicians for decades, Fleet is not asking doctors to not recommend the Phospho-soda products.
Gastroenterologists and proctologists have recommended Fleet’s Phospho-soda products for years, especially in patient preparation for screening colonoscopy (a colon cancer screening examination). In a clinical trial the product achieved the highest patient acceptance scores, and cleansing was generally rated as excellent.
However, Fleet Phospho-soda should not be used in patients with congenital megacolon, bowel obstructions, ascites, congestive heart failure or kidney disease.
When problems do not exist, physicians believe the product is good because it is effective, easily tolerated by patients and affordable.
Generally most patients do not like bowel prep products. Some doctors, like Mark Wax MD, suggest the need for “virtual bowel prep”. He adds that “until that becomes an option, patients will have to undergo conventional preparation and that requires making informed decisions about available options.” Wax is associated with a company that offers virtual colonoscopy.
The company states that virtual colon screening is a minimally invasive, safe and more comfortable procedure. Recent studies have shown it to be comparable to conventional colonoscopy for finding polyps larger than one centimeter. The risk of cancer in smaller polyps is almost negligible. With virtual colonoscopy, 100% of the colon surface can be seen. It is estimated that physicians only see 70%-80% of the colon surface with conventional colonoscopy.
Should you have medical questions about using these products, contact your health care provider.
This article is part of a consumer health education series written by Gayle Eversole, DHom, PhD, MH, NP, ND, of Creating Health Institute, in collaboration with Bernstein Liebhard, LLP, who sponsors the consumer advocate website, www.ConsumerInjuryLawyers.com
9:37 AM
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