Navigation Links
High-definition colonoscopy detects more polyps, Mayo Clinic researchers say

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
Mayo Clinic

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:
(Date:10/13/2017)... (PRWEB) , ... October 13, 2017 , ... The American ... to become its next President and Chief Executive Officer, succeeding Dr. James C. Puffer ... Elect beginning July 1, 2018 until Dr. Puffer’s retirement at the end of 2018. ...
(Date:10/13/2017)... ... 13, 2017 , ... Lori R. Somekh, founder of the Law Office ... of elder law and special needs planning attorneys. “Membership in ElderCounsel helps our office ... forum to network with elder law attorneys nationwide,” said Somekh. , ElderCounsel ...
(Date:10/13/2017)... ... 13, 2017 , ... Ellevate Network, the leading network for professional women, brought ... gender equality at their inaugural Summit in New York City in June. The event ... audience of over 3 million. To watch the Mobilize Women video, click here ...
(Date:10/13/2017)... ... 2017 , ... Coveros, a leader in agile coaching services ... by the Center for Medicare and Medicaid Services (CMS). The Enterprise Agile Transformation ... Agile methodologies in a consistent and high value manner across CMS programs. Coveros ...
(Date:10/12/2017)... ... October 12, 2017 , ... CitiDent and San Francisco dentists, ... cutting-edge Oventus O2Vent technology. As many as 18 million Americans are estimated to ... breathing. Oral appliances can offer significant relief to about 75 percent of people ...
Breaking Medicine News(10 mins):
(Date:10/11/2017)... -- Hill-Rom Holdings, Inc. ("Hill-Rom") (NYSE: HRC), today provided an ... Puerto Rico , where the company ... Following a comprehensive onsite assessment, ... damage, temporary loss of power and minimal water damage ... operations have resumed, and the company expects to return ...
(Date:10/4/2017)... , Oct. 4, 2017  South Korean-based healthcare ... CPR training aide "cprCUBE" on Kickstarter. The device will ... during cardiac arrests with better efficiency compared to the ... offers real-time feedback on efficacy of the compression for ... campaign has a goal to raise $5,000. ...
(Date:10/2/2017)... Oct. 2, 2017  AllianceRx Walgreens Prime, the combined ... Walgreens and pharmacy benefit manager Prime Therapeutics LLC (Prime), ... which included the unveiling of new signage at its ... well as at a few other company-owned facilities across ... to patients, some of whom will begin to see ...
Breaking Medicine Technology: