Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

Esophageal function implicated in life-threatening experiences in infants, study suggests

28.03.2014

About 1 percent of all emergency room visits are prompted by near-death experiences in infants, such as extended periods without breathing or sudden changes in skin pallor or muscle tone. What causes these frightening experiences is often unknown, but the result can be long hospital stays and neurological impairment.

Now, a study of these apparent life-threatening events — called ALTEs for short — suggests that infants who experience them have abnormal regulation of esophageal and airway function compared to healthy babies. The findings, published online March 28 in the Journal of Pediatrics by a team in The Research Institute at Nationwide Children's Hospital, offer new information about the mechanisms behind ALTEs and what clinicians and parents can do to avoid them.

The research, led by Sudarshan Jadcherla, MD, principal investigator in the Center for Perinatal Research, compared 10 infants who experienced an ALTE and 10 healthy babies using innovative tools that track the concurrent functions of the infants' upper digestive tracts and airways. They found that infants with a previous near-death experience were more likely to have pauses in breathing, gasping breaths, less effective upper airway protection, delays in clearing their airways and difficulty coordinating swallowing and respiratory interactions.

"Previously, these life-threatening events were thought to be due to gastroesophageal reflux disease (GERD), and acid-suppressive treatment for that was often begun," says Dr. Jadcherla, who is also the director of the Neonatal and Infant Feeding Disorders Program and the Neonatal Aerodigestive Pulmonary Program at Nationwide Children's. "But our study identifies the dysfunctions in the aerodigestive tract — instead of GERD-centered mechanisms — as the real therapeutic targets for these babies."

Evaluating and accommodating these problems of esophageal function instead of initiating GERD medication (unless there is specific evidence of the condition) may be the key to preventing future near-death events for at-risk infants, he suggests.

"These infants' respiratory limitations are generally due to immaturity of functional neural networks involved with swallowing and airway safety," Dr. Jadcherla says. "The treatment for managing them is patience and perseverance with the quality of oral feeding."

The researchers used manometry — a pressure-sensitive tube inserted through the nose and into the esophagus — to measure muscle contractions, swallowing, reflex strength and gastroesophageal reflux in all 20 participants. Infants with ALTE were slower to get back to normal aerodigestive regulation after an esophageal event (such as swallowing or gastroesophageal reflux), with a higher proportion of failed muscle contraction in the esophagus, more frequent episodes of pauses in breathing and more gasping breaths.

"For infants with esophageal function difficulties, proper positioning, proper feeding methods, taking time with the baby during oral feeding and allowing time for maturation to heal their problems are essential to protecting these babies from ALTEs," Dr. Jadcherla says. "We need to be patient in the care of such vulnerable little patients."

Understanding the causes of and treatments for near-death events in infants may also shed light on aerodigestive protective mechanisms implicated in some cases of sudden infant death syndrome, or SIDS.

"Gasping can be a mechanism for self-resuscitation when associated with swallowing, restoring respiratory normalcy," says Dr. Jadcherla, also a professor of pediatrics at The Ohio State University College of Medicine. "Although there can be many theories for death in any given infant with SIDS, the precise mechanisms or therapeutic targets in such infants when they are alive remain elusive. Understanding the aerodigestive mechanisms in the context of airway protection and feeding safety may offer hope."

Gina Bericchia | EurekAlert!

Further reports about: SIDS airway death esophageal function healthy infants life-threatening mechanism protective

More articles from Health and Medicine:

nachricht Study suggests possible new target for treating and preventing Alzheimer's
02.12.2016 | Oregon Health & Science University

nachricht The first analysis of Ewing's sarcoma methyloma opens doors to new treatments
01.12.2016 | IDIBELL-Bellvitge Biomedical Research Institute

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: Novel silicon etching technique crafts 3-D gradient refractive index micro-optics

A multi-institutional research collaboration has created a novel approach for fabricating three-dimensional micro-optics through the shape-defined formation of porous silicon (PSi), with broad impacts in integrated optoelectronics, imaging, and photovoltaics.

Working with colleagues at Stanford and The Dow Chemical Company, researchers at the University of Illinois at Urbana-Champaign fabricated 3-D birefringent...

Im Focus: Quantum Particles Form Droplets

In experiments with magnetic atoms conducted at extremely low temperatures, scientists have demonstrated a unique phase of matter: The atoms form a new type of quantum liquid or quantum droplet state. These so called quantum droplets may preserve their form in absence of external confinement because of quantum effects. The joint team of experimental physicists from Innsbruck and theoretical physicists from Hannover report on their findings in the journal Physical Review X.

“Our Quantum droplets are in the gas phase but they still drop like a rock,” explains experimental physicist Francesca Ferlaino when talking about the...

Im Focus: MADMAX: Max Planck Institute for Physics takes up axion research

The Max Planck Institute for Physics (MPP) is opening up a new research field. A workshop from November 21 - 22, 2016 will mark the start of activities for an innovative axion experiment. Axions are still only purely hypothetical particles. Their detection could solve two fundamental problems in particle physics: What dark matter consists of and why it has not yet been possible to directly observe a CP violation for the strong interaction.

The “MADMAX” project is the MPP’s commitment to axion research. Axions are so far only a theoretical prediction and are difficult to detect: on the one hand,...

Im Focus: Molecules change shape when wet

Broadband rotational spectroscopy unravels structural reshaping of isolated molecules in the gas phase to accommodate water

In two recent publications in the Journal of Chemical Physics and in the Journal of Physical Chemistry Letters, researchers around Melanie Schnell from the Max...

Im Focus: Fraunhofer ISE Develops Highly Compact, High Frequency DC/DC Converter for Aviation

The efficiency of power electronic systems is not solely dependent on electrical efficiency but also on weight, for example, in mobile systems. When the weight of relevant components and devices in airplanes, for instance, is reduced, fuel savings can be achieved and correspondingly greenhouse gas emissions decreased. New materials and components based on gallium nitride (GaN) can help to reduce weight and increase the efficiency. With these new materials, power electronic switches can be operated at higher switching frequency, resulting in higher power density and lower material costs.

Researchers at the Fraunhofer Institute for Solar Energy Systems ISE together with partners have investigated how these materials can be used to make power...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

Event News

ICTM Conference 2017: Production technology for turbomachine manufacturing of the future

16.11.2016 | Event News

Innovation Day Laser Technology – Laser Additive Manufacturing

01.11.2016 | Event News

#IC2S2: When Social Science meets Computer Science - GESIS will host the IC2S2 conference 2017

14.10.2016 | Event News

 
Latest News

UTSA study describes new minimally invasive device to treat cancer and other illnesses

02.12.2016 | Medical Engineering

Plasma-zapping process could yield trans fat-free soybean oil product

02.12.2016 | Agricultural and Forestry Science

What do Netflix, Google and planetary systems have in common?

02.12.2016 | Physics and Astronomy

VideoLinks
B2B-VideoLinks
More VideoLinks >>>