Uh-Pare-Ent Life Thre-ten-ing E-vent
An apparent life-threatening event (ALTE) is a set of symptoms in an infant that cause the caregiver to believe the child may be dying or has died. It may include disturbed breathing, change in color, choking or gagging. Cardiopulmonary resuscitation (CPR) may have been done at the time of the event.
Infant Airway and Lungs
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The cause of ALTE is not always clear. Some causes of ALTE may include:
Boys and babies younger than 1 year of age are at higher risk of ALTE. Other factors that may increase an infant’s risk of ALTE include:
Symptoms may include:
You will be asked about your baby’s symptoms and medical history, including what you noticed in the time leading up to the ALTE. A physical and neurological exam will be done.
To look for potential causes of ALTE the doctor may order:
Other tests may include:
Your child's condition may need to be observed short term in the hospital, especially if there have been previous events or the symptoms persist. If this was the first episode and your child is back to normal, you may be able to go home.
Talk with your doctor about the best treatment plan for your baby. Options include observation and treating the underlying cause of the ALTE. If the cause is unknown, treatment involves monitoring the child for symptoms and teaching parents life-saving treatment (CPR).
CPR is a life-saving treatment that can be delivered by non-medical and medical people. It may restore breathing and blood circulation or help provide oxygen to the body until medical help arrives.
Consider taking a class in infant CPR so you are prepared.
If a cause is found, then the underlying condition will be treated.
In half of the babies who have an ALTE, the cause is not known. Home monitoring may be considered if advised by your baby’s doctor. A monitor can record your baby’s heart and breathing activity. An alert will sound if your baby is having another event. It may also sound for no reason (false positive). Your child will be followed closely long term.
Family Doctor—American Academy of Family Physicians
Healthy Children—American Academy of Pediatricians
Brief resolved unexplained event (BRUE). EBSCO DynaMed Plus website. Available at: http://www.dynamed.com/topics/dmp~AN~T909988/Brief-resolved-unexplained-event-BRUE. Updated July 19, 2016. Accessed October 4, 2016.
Apparent life threatening event ALTE. The Royal Children’s Hospital Melbourne website. Available at: http://www.rch.org.au/clinicalguide/guideline_index/Apparent_Life_Threatening_Event_ALTE/. Accessed November 10, 2015.
Clinical practice guideline: apparent life threatening event (ALTE). Prince Margaret Hospital website. Available at: http://www.pmh.health.wa.gov.au/development/manuals/clinical_practice_guidelines/documents/alte_cpg.pdf. Updated January 2009. Accessed November 10, 2015.
Hall K, Zalman B. Evaluation and management of apparent life-threatening events in children. Am Fam Physician. 2005 June 15;71(12):2301-2308.
7/28/2014 DynaMed's Systematic Literature Surveillance http://www.dynamed.com/topics/dmp~AN~T909988/Brief-resolved-unexplained-event-BRUE: Sarohia M, Platt S. Apparent life-threatening events in children: practical evaluation and management. 2014 Apr;11(4):1-14.
Last reviewed November 2015 by Michael Woods, MD
Please be aware that this information is provided to supplement the care provided by your physician. It is neither intended nor implied to be a substitute for professional medical advice. CALL YOUR HEALTHCARE PROVIDER IMMEDIATELY IF YOU THINK YOU MAY HAVE A MEDICAL EMERGENCY. Always seek the advice of your physician or other qualified health provider prior to starting any new treatment or with any questions you may have regarding a medical condition.
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