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New Tool may Save Babies with Heart Defect
Reported November 25, 2009
(Ivanhoe Newswire) -- Researchers have developed a new tool that may
help surgeons plan for a life-saving operation performed on babies born with
severe congenital heart defects.
The tool was developed to aid doctors in preparing for the “Fontan" surgery.
Babies who get the surgery have a developmental disease where one of the
chambers, or ventricles, of the heart fails to grow properly. This leaves
their hearts unable to properly circulate blood through their lungs and
starves their bodies of oxygen. The lack of oxygen turns their skin blue, a
condition sometimes referred to as "blue baby syndrome" for that reason. The
Fontan surgery redirects blood flow to be capable of oxygenating the body,
by connecting blood flowing veins to the side of the heart with the
pulmonary arteries.
The tool first collects images to construct a customized model of the baby's
heart. After doctors input their surgical design, the computer explores
different options. The software is able to stimulate blood flow after the
stimulated heart construction, allowing surgeons to evaluate the plan's
outcome, before starting real surgery on a baby.
“Our ultimate goal is to optimize surgeries that are tailored for individual
patients so that we don’t have to rely on a 'one-size fits all' solution,"
Alison Marsden, co-developer of the new Y-graft design, was quoted as
saying.
Exercise intolerance, blood clot formation and eventual heart failure
requiring transplantation are all risks for babies who receive the Fontan
surgery. Experts hope their new technique can mitigate these risks.
SOURCE: Presented at Fluid Dynamics Conference in Minneapolis, November
22-24, 2009 |
