Navigation Links
OHSU fixes complex heart problems without open-heart surgery

PORTLAND, Ore. -- The pediatric cardiac team at Oregon Health & Science University Doernbecher Children's Hospital is the first in the region and one of a handful in the nation to implant a pulmonary heart valve without open-heart surgery.

To date, four patients have received the landmark valve in the OHSU Pediatric and Adult Congenital Cardiac Catheterization Lab. All reported immediate improvement in their energy level and stamina.

The device, called the Medtronic Melody Transcatheter Pulmonary Valve, recently was approved by the Food and Drug Administration. The valve is used to replace a narrow or leaky pulmonary valve "conduit" a tube connecting the heart to the lungs in children and adults who previously have undergone surgery to correct a congenital heart defect. Until now, pulmonary valve replacements have required open-heart surgery.

The Melody valve is inserted into a tiny opening in the leg and guided by a catheter through blood vessels into the heart. Once the valve is correctly positioned, a balloon on the end of the catheter is inflated, delivering the valve and immediately correcting blood flow.

"Children born with blocked or leaky heart valves can undergo as many as four open-heart surgeries before reaching adulthood to replace conduits that have worn out or that they've outgrown, and each time the risk of surgery goes up," said Grant Burch, M.D., director of the OHSU Pediatric and Adult Congenital Cardiac Catheterization Lab and associate professor of pediatric cardiology at OHSU Doernbecher Children's Hospital. "The Melody extends the useful life of an implanted valve conduit and is very likely to reduce the number of open-heart operations a patient might require over a lifetime."

"This device is not going to abolish the need for open-heart surgery, but it does provide a safe and effective alternative to surgery for many children and young adults with congenital heart disease," explained Burch.

"The remarkable thing about this procedure is that the valve is placed into the beating heart through a vein in the patient's leg. After the procedure, patients spend a night on the hospital ward and are discharged home the following morning," said Laurie Armsby, M.D., associate professor of pediatric cardiology at OHSU Doernbecher and Burch's partner in the OHSU Pediatric and Adult Congenital Cardiac Catheterization Lab. "This device brings us closer to the goal of providing children less invasive alternatives to surgery for the treatment of congenital heart disease."

More than 1,700 patients have been implanted worldwide since the valve was approved for commercial use in Europe in 2006. According to the FDA, an estimated 1,000 U.S. children and adults with congenital heart disease will qualify for the new valve annually.

Drs. Burch and Armsby are the only pediatric cardiologists in Oregon with advanced training in interventional cardiology. Together they perform more than 300 cardiac catheterizations in newborns, children, and adults with congenital heart disease each year.

The FDA approved the Melody valve under the Humanitarian Device Exemption provision, which allows for the use of devices determined to be safe and whose benefits to health outweigh the risk of injury or illness. A Humanitarian Use Device (HUD) is intended to benefit patients by treating or diagnosing a disease or condition that affects or is manifested in fewer than 4,000 individuals in the United States per year. The exemption is only given when there are no comparable devices available to treat or diagnose the disease or condition.


Contact: Tamara Hargens-Bradley
Oregon Health & Science University

Related biology news :

1. Study: Wildlife need more complex travel plans
2. Complex systems and Mars missions help understand how life began
3. Inherited genetic cause, possible treatment found for complex lung disorder
4. Kidney function discovery sheds light on genetic complexity of disease
5. Stowers Institutes Workman Lab discovers novel histone demethylase protein complex
6. New tool could unpick complex cancer causes and help sociologists mine Facebook
7. SUNY Downstate researchers find that memory storage molecule preserves complex memories
8. Artificial cells, simple model for complex structure
9. DOE awards UGA $3.1 million to support complex carbohydrate study nationwide
10. NIST-Cornell team builds worlds first nanofluidic device with complex 3-D surfaces
11. First tri-continuous mesoporous Silica complex structure developed in Singapore
Post Your Comments:
(Date:11/10/2015)... 10, 2015  In this report, the ... of product, type, application, disease indication, and ... report are consumables, services, software. The type ... biomarkers, efficacy biomarkers, and validation biomarkers. The ... diagnostics development, drug discovery and development, personalized ...
(Date:11/2/2015)... Calif. , Nov. 2, 2015  SRI International ... million to provide preclinical development services to the National ... contract, SRI will provide scientific expertise, modern testing and ... variety of preclinical pharmacology and toxicology studies to evaluate ... --> The PREVENT Cancer Drug Development Program ...
(Date:10/29/2015)... , Oct. 29, 2015  Connected health pioneer, ... driving the explosion of technology-enabled health and wellness, and ... new book, The Internet of Healthy Things ... sensors or smartphones even existed, Dr. Kvedar, vice president, ... of health care delivery, moving care from the hospital ...
Breaking Biology News(10 mins):
(Date:11/27/2015)... November 27, 2015 ... popularity of companion diagnostics is one of ... market with pharmaceutical companies and diagnostic manufacturers ... tests. . --> ... report on global cancer biomarkers market spread ...
(Date:11/25/2015)... , Nov. 25, 2015  PharmAthene, Inc. (NYSE MKT: ... adopted a stockholder rights plan (Rights Plan) in an ... loss carryforwards (NOLs) under Section 382 of the Internal ... --> PharmAthene,s use of its NOLs could be ... as defined in Section 382 of the Code. In ...
(Date:11/25/2015)... , Nov. 25, 2015  Neurocrine Biosciences, Inc. ... Gorman , President and CEO of Neurocrine Biosciences, will ... Conference in New York . ... visit the website approximately 5 minutes prior to the ... replay of the presentation will be available on the ...
(Date:11/25/2015)... PORTLAND, Oregon , November 25, 2015 /PRNewswire/ ... Deep Market Research Report is a professional and ... Genomics industry.      (Logo: ... basic overview of the industry including definitions, classifications, ... analysis is provided for the international markets including ...
Breaking Biology Technology: