Canada Pharmacy Supports the Worth of Sigmoidoscopy

New research confirms that sigmoidoscopies -- less-invasive alternatives to colonoscopies that don't require sedation -- are effective in lowering the risk of colon cancer, which makes generic Xeloda even more successful in treating colon cancer. 

"Physicians need to find out which colorectal cancer screening test the patient sitting in front of them will do, and recommend that test," said editorial author Dr. John Inadomi, a professor of medicine at the University of Washington School of Medicine in Seattle. "It's the test the patient wants to do -- not the test the doctor wants them to do -- that is important." 

Colon and rectal cancers kill more than 51,000 people a year in the United States, according to the National Cancer Institute. Colonoscopies allow doctors to view the lining of the entire colon as they engage in search-and-destroy missions against polyps that could develop into cancer. To buy Xeloda is then necessary if the polyps couldn’t be destroyed during the procedure. 

Sigmoidoscopies use a smaller scope that searches only the lower colon, potentially missing some precancerous polyps. Patients can return to home or work right after the procedure because they are not sedated. 

"Both kinds of screening require a notoriously unpleasant cleansing of the colon via a liquid laxative. However, sigmoidoscopies require less laxative consumption than colonoscopies," Inadomi said. 

But there is a hitch to sigmoidoscopies: If the procedure turns up potentially dangerous polyps, they need to be removed during a subsequent colonoscopy. 

"When it comes to the ability of regular colonoscopies to detect polyps, we may have to do better," said study author Dr. Robert Schoen, a professor of medicine and epidemiology at the University of Pittsburgh School of Medicine. "Or maybe we can't do better." Canada pharmacy is very optimistic that one of these days better ways of detecting polyps will surely be established. 

Sigmoidoscopy is the minimally invasive medical examination of the large intestine from the rectum through the last part of the colon. There are two types of sigmoidoscopy: flexible sigmoidoscopy, which uses a flexible endoscope, and rigid sigmoidoscopy, which uses a rigid device. Flexible sigmoidoscopy is generally the preferred procedure. A sigmoidoscopy is similar to, but not the same as, a colonoscopy. A sigmoidoscopy only examines up to the sigmoid, the most distal part of the colon, while colonoscopy examines the whole large bowel.

Flexible sigmoidoscopy enables the physician to look at the inside of the large intestine from the rectum through the last part of the colon, called the sigmoid. Physicians may use the procedure to find the cause of diarrhea, abdominal pain, or constipation. They also use it to look for benign and malignant polyps, as well as early signs of cancer in the descending colon and rectum. With flexible sigmoidoscopy, the physician can see intestinal bleeding, inflammation, abnormal growths, and ulcers in the descending colon and rectum. Flexible sigmoidoscopy is not sufficient to detect polyps or cancer in the ascending or transverse colon (two-thirds of the colon). However, although in absolute terms only a relatively small section of the large intestine can be examined using sigmoidoscopy, the sites which can be observed represent areas which are most frequently affected by diseases such as colorectal cancer, for example the rectum.