Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

Gastric bypass surgery is riskiest for those who need it most

02.12.2003


The same health risks that make morbidly obese patients eligible for gastric bypass surgery also leave them susceptible to complications during and after the surgery, a study of 335 patients shows.



The patients all had Roux-en-Y gastric bypass at the University Hospitals of Cleveland from 1998 to 2002. Roux-en-Y is the most popular surgery in the treatment of severely obese patients to help weight loss. It involves stapling the upper stomach to create a small pouch that is then attached to the small intestine, reducing the capacity of the stomach. Subsequent radiologic imaging helped to identify 57 complications from the surgeries – many of them multiple problems in the same patients – including suture tears and leaks, pulmonary embolism, pneumonia and infection.

"This should not be considered a cosmetic procedure," said Elmar Merkle, M.D., the lead author of the study, who presented the findings today at the 89th Scientific Assembly and Annual Meeting of the Radiological Society of North America (RSNA). "People need to be aware of the potential complications of this surgery. It basically should be the last option we can offer the morbidly obese, after other less invasive interventions such as diet and exercise have been tried."


The number of gastrointestinal surgeries for weight loss is soaring, according to the American Society for Bariatric Surgery, which estimates that the 63,000 procedures performed in 2002 will increase to 100,000 this year. Americans who are at least 100 pounds overweight are eligible for gastrointestinal surgery, according to National Institutes of Health (NIH) guidelines, but a patient who is less than 100 pounds overweight may also be considered if there is a life-threatening condition related to his or her obesity, such as type 2 diabetes or cardiopulmonary problems.

"Severely obese patients are considered to be at high risk for any type of surgery because of these co-morbidities," said Dr. Merkle, currently associate professor in the department of radiology at Duke University Medical Center in Durham, N.C. "In addition, there is a wide spectrum of procedure-specific complications following Roux-en-Y gastric bypass."

In the study, there were eight reports of anastomotic leaks and five instances of staple line disruption in the stomach, complications specific to Roux-en-Y. Three incidents of pulmonary embolism, two cases of pneumonia, and single cases of severe infection and open abdominal wound disruption were also reported – complications that are more prevalent among severely overweight patients undergoing surgery, according to Dr. Merkle.

There were also two deaths within 30 days of the 335 surgeries, but no additional deaths have been reported in the nearly 600 gastric bypass surgeries performed to date.

"Gastric bypass surgery is not about losing weight the easy way and looking good – the operation is about improving health," Dr. Merkle said. "There should be a long-term commitment by the patient. Eating habits must change. For example, patients will need lifelong vitamin supplements. Some patients lose weight, then gain it back again. Not everyone gets the results they want, but they all face the risk of these complications."

Co-authors of the study were Thomas A. Stellato, M.D., the Charles A. Hubay M.D. Professor of Surgery, founder of the bariatric program at University Hospitals of Cleveland; Cathleen Crouse, R.N., the coordinator of the bariatric program at University Hospitals; Peter T. Hallowell, M.D., who performed part of the operations; and Dean Akira Nakamoto, M.D., the director of body imaging at University Hospitals.



RSNA is an association of more than 35,000 radiologists, radiation oncologists and related scientists committed to promoting excellence in radiology through education and by fostering research, with the ultimate goal of improving patient care. The Society is based in Oak Brook, Ill.

Maureen Morley | EurekAlert!
Further information:
http://www.rsna.org/press03

More articles from Health and Medicine:

nachricht Cystic fibrosis alters the structure of mucus in airways
28.06.2017 | University of Iowa Health Care

nachricht Mice provide insight into genetics of autism spectrum disorders
28.06.2017 | University of California - Davis

All articles from Health and Medicine >>>

The most recent press releases about innovation >>>

Die letzten 5 Focus-News des innovations-reports im Überblick:

Im Focus: Can we see monkeys from space? Emerging technologies to map biodiversity

An international team of scientists has proposed a new multi-disciplinary approach in which an array of new technologies will allow us to map biodiversity and the risks that wildlife is facing at the scale of whole landscapes. The findings are published in Nature Ecology and Evolution. This international research is led by the Kunming Institute of Zoology from China, University of East Anglia, University of Leicester and the Leibniz Institute for Zoo and Wildlife Research.

Using a combination of satellite and ground data, the team proposes that it is now possible to map biodiversity with an accuracy that has not been previously...

Im Focus: Climate satellite: Tracking methane with robust laser technology

Heatwaves in the Arctic, longer periods of vegetation in Europe, severe floods in West Africa – starting in 2021, scientists want to explore the emissions of the greenhouse gas methane with the German-French satellite MERLIN. This is made possible by a new robust laser system of the Fraunhofer Institute for Laser Technology ILT in Aachen, which achieves unprecedented measurement accuracy.

Methane is primarily the result of the decomposition of organic matter. The gas has a 25 times greater warming potential than carbon dioxide, but is not as...

Im Focus: How protons move through a fuel cell

Hydrogen is regarded as the energy source of the future: It is produced with solar power and can be used to generate heat and electricity in fuel cells. Empa researchers have now succeeded in decoding the movement of hydrogen ions in crystals – a key step towards more efficient energy conversion in the hydrogen industry of tomorrow.

As charge carriers, electrons and ions play the leading role in electrochemical energy storage devices and converters such as batteries and fuel cells. Proton...

Im Focus: A unique data centre for cosmological simulations

Scientists from the Excellence Cluster Universe at the Ludwig-Maximilians-Universität Munich have establised "Cosmowebportal", a unique data centre for cosmological simulations located at the Leibniz Supercomputing Centre (LRZ) of the Bavarian Academy of Sciences. The complete results of a series of large hydrodynamical cosmological simulations are available, with data volumes typically exceeding several hundred terabytes. Scientists worldwide can interactively explore these complex simulations via a web interface and directly access the results.

With current telescopes, scientists can observe our Universe’s galaxies and galaxy clusters and their distribution along an invisible cosmic web. From the...

Im Focus: Scientists develop molecular thermometer for contactless measurement using infrared light

Temperature measurements possible even on the smallest scale / Molecular ruby for use in material sciences, biology, and medicine

Chemists at Johannes Gutenberg University Mainz (JGU) in cooperation with researchers of the German Federal Institute for Materials Research and Testing (BAM)...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

Event News

Plants are networkers

19.06.2017 | Event News

Digital Survival Training for Executives

13.06.2017 | Event News

Global Learning Council Summit 2017

13.06.2017 | Event News

 
Latest News

Supersensitive through quantum entanglement

28.06.2017 | Physics and Astronomy

X-ray photoelectron spectroscopy under real ambient pressure conditions

28.06.2017 | Physics and Astronomy

Mice provide insight into genetics of autism spectrum disorders

28.06.2017 | Health and Medicine

VideoLinks
B2B-VideoLinks
More VideoLinks >>>