Navigation Links
High-definition colonoscopy detects more polyps, Mayo Clinic researchers say
Date:10/28/2009

JACKSONVILLE, Fla. High-definition (HD) colonoscopy is much more sensitive than standard colonoscopy in finding polyps that could morph into cancer, say researchers at the Mayo Clinic campus in Florida.

They say their findings, presented today at the annual meeting of the American College of Gastroenterology in San Diego, Calif., are not only important because a large group (2,430) of patients participated, but they resulted from the only study to date that has compared these two methods in a general clinical practice setting, among all the patients who needed a colonoscopy and with all the physicians who performed it.

"There hasn't been a definitive trial to see whether high-definition colonoscopy detects more polyps or not, and this was a natural experiment, designed to ask if use of one endoscope or another makes a difference in day-to-day clinical practice," says the study's senior investigator, gastroenterologist Michael Wallace, M.D., a professor of medicine at the College of Medicine, Mayo Clinic.

"Based on these results, it appears that high-definition colonoscopy detects more precancerous polyps," he says. The findings are being presented by Anna Buchner, M.D., who led the research during a fellowship at Mayo Clinic in Florida. She is now at the University of Pennsylvania.

This study was conducted between September 2006 and December 2007 when Mayo Clinic in Florida was switching its six colonoscopy procedure rooms from standard colonoscopy endoscopes to high-definition endoscopes.

An endoscope is the lighted tube inserted into the colon and rectum to look for, and remove, polyps. A high-definition endoscope uses both a high-definition video chip and HD monitors (like HD television) that increase the resolution of the image, Dr. Wallace says.

Patients were not assigned to one scope or the other. Instead, they were placed in whatever room was available and assigned a gastroenterologist who was on duty at the time. "So there was a natural randomization of patients to either standard or high-definition endoscopes, and physicians were not able to cherry-pick their patients," Dr. Wallace says. "No doctors used high definition more than any other and, in this way, you can eliminate most of the variables that can bias results of a clinical trial."

Researchers found that the rate of detection of adenomas polyps that are likely to become cancerous was 29 percent among patients who were scanned with high-definition endoscopes, versus 24 percent for those in which standard endoscopes were used.

"That is an increase of 20 percent," Dr. Wallace says. "While that may seem small, in light of the 14 million colonoscopies that are performed each year, even small differences add up to important improvements."

All three Mayo Clinic sites (Florida, Minnesota, and Arizona) now only use high-definition endoscopes to perform colonoscopies, Dr. Wallace says. Many clinics in the country have both kinds of endoscopes "so it will not be that hard to move to the newer, and better, technology," he says.

The study was funded by Mayo Clinic, and the authors declare no conflict of interest nor do they endorse the products mentioned in the study. Dr. Wallace did not receive any funds for this study from the company that produced the products evaluated.


'/>"/>

Contact: Kevin Punsky
punsky.kevin@mayo.edu
904-953-2299
Mayo Clinic
Source:Eurekalert

Related medicine news :

1. Modelesque Abs Without the Crunches Are Now Possible With the High-Definition Tummy Tuck
2. LodgeNet Healthcare Provides Industrys First Integrated High-Definition Interactive System for Hospitals
3. Arizona Heart Institute Announces FREE Public Forum Featuring Live Viewing of Surgical Procedures Via High-Definition (HD) Satellite
4. MD Goes HD: Phoenix Doctor Is First to Use New High-Definition Television Production Vehicle to Help Educate and Teach From the Operating Room.
5. Siemens Installs First High-Definition PET-CT
6. Study shows unsedated colonoscopy for colorectal cancer screening well accepted by patients
7. Obama Speech Heralds Prevention Power of Screening Tests Like Colonoscopy
8. Colon capsule endoscopy diagnoses 64 percent of total polyps detected by conventional colonoscopy
9. Colonoscopy Beats Camera Pill at Catching Colon Cancer
10. For Some, Virtual Colonoscopy May Be Just As Good
11. Colonoscopy Risks Increase With Age and Illness
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:3/1/2017)... ... March 01, 2017 , ... Cognition Corporation ... a Human Factors Engineering (HFE) keynote speaker for its 2017 User Conference. , ... Cognition. “Human Factors is a dynamic part of product development, and our speaker ...
(Date:3/1/2017)... IL (PRWEB) , ... March 01, 2017 , ... First ... its latest funding round of $1.6 million. First Stop Health has raised total capital ... accelerate the company’s growth. , First Stop Health co-founder and CEO Patrick Spain (co-founder ...
(Date:3/1/2017)... ... March 01, 2017 , ... One of the most popular shows on ... the beloved character Toby being shocked back to life after suffering cardiac arrest on ... quickly back to his old self, ready to marry his best girl. In ...
(Date:3/1/2017)... (PRWEB) , ... March 01, 2017 , ... ... the treatment of eating disorders, is pleased to announce the opening of residential ... facility. Starting this week, Aloria Health will accept adult clients for residential treatment. ...
(Date:3/1/2017)... , ... March 01, 2017 , ... ... Lung Cancer Conference® on April 8, 2017, in Sunny Isles Beach, Florida. The ... officer, Massachusetts General Physicians Organization, Boston, and Dr. Heather Wakelee, associate professor of ...
Breaking Medicine News(10 mins):
(Date:3/1/2017)... India , March 1, 2017 ... report "Neurovascular Devices/Interventional Neurology Market by Product (Embolic ... Flow Diversion Devices, Clot Retrievers), Pathology (Aneurysm, AVM) ... this report studies the neurovascular devices/interventional neurology market ... The market is expected to reach USD 2.62 ...
(Date:3/1/2017)... Mar 01, 2017 Research and Markets has announced the addition of the ... offering. ... country level, for instance North America (U.S., Canada ... France , Italy , U.K. and Spain ... India , Australia , South Korea ...
(Date:3/1/2017)... -- ... Research and Markets has announced the addition of the ... to their offering. The Global Human Papilloma Virus ... access to partnering deals and agreements entered into by the world,s ... partnering deals. The majority of deals are discovery or development stage ...
Breaking Medicine Technology: