By Dr. Tamara Zach MD — May 05, 2026
Understanding syncope in children: more than just "passing out"
Watching your child collapse, lose consciousness, and go limp is terrifying. It might happen at a school assembly, during soccer practice, or while standing in line at a Phoenix summer event. Afterward, families are shaken and full of questions. Is this serious? Could it happen again? Does my child need a specialist?
At Rose Medical Pavilion, Dr. Tamara Zach MD works with Phoenix-area families on exactly those questions. Syncope, the medical term for a temporary loss of consciousness caused by reduced blood flow to the brain, is among the more common reasons children get referred to a pediatric neurologist. Most cases are harmless. Some require careful evaluation to rule out a neurological or cardiac cause.
what causes syncope in children?
Fainting episodes aren't all alike, and the cause shapes both treatment and safety planning. Here are the types we see most often in kids.
Vasovagal (Neurocardiogenic) Syncope
This is the most frequent type in children and teenagers by a wide margin. The nervous system overreacts to a trigger, such as standing too long, emotional stress, pain, or the sight of blood, and heart rate and blood pressure drop suddenly. The child may feel lightheaded or nauseous, or notice their vision graying out before briefly losing consciousness. It's usually not dangerous, but it's disruptive and can cause injury from falls.
Orthostatic Hypotension
A child who stands up quickly and feels faint may be experiencing a temporary drop in blood pressure. This is common in fast-growing adolescents and gets worse with dehydration, a real problem in Phoenix, where summer temperatures routinely top 110°F. Kids who don't drink enough during outdoor activities are far more likely to have these episodes here in Arizona.
Cardiac Syncope
This type is less common but more serious. An abnormal heart rhythm or a structural heart problem temporarily cuts blood flow to the brain. Watch for fainting during exercise rather than after, fainting with no warning sensation, or a family history of sudden cardiac death. These cases need urgent evaluation and close work between a pediatric neurologist and a cardiologist.
Syncope vs. Seizure: A Critical Distinction
One of the main jobs a pediatric neurologist does is telling syncope apart from a pediatric seizure. During syncope, some children have brief jerking movements or muscle twitches as the brain loses oxygen for a moment. To anyone watching, this looks exactly like a seizure, so families often arrive at the ER with a seizure diagnosis when the actual event was syncopal. Dr. Zach takes a detailed clinical history to separate the two, and that distinction changes the whole evaluation and management plan.
how is syncope evaluated in a pediatric neurology setting?
When a child comes to Dr. Tamara Zach MD at Rose Medical Pavilion after a loss of consciousness, the evaluation fits the individual child's history and presentation. A detailed account of the episode, what the child was doing beforehand, any warning symptoms, how long they were out, and how they felt afterward, gives the strongest diagnostic clues.
Testing may include:
- Electroencephalogram (EEG): If there's any concern that seizure activity was involved, a pediatric EEG can pick up abnormal electrical patterns in the brain. This non-invasive test helps separate epileptic events from syncope.
- Electrocardiogram (ECG): To check for cardiac rhythm abnormalities that could be behind the fainting.
- Tilt table testing: When vasovagal syncope is suspected but the diagnosis isn't clear, this test can reproduce and confirm the mechanism.
- Blood work: To check for anemia, blood sugar problems, or electrolyte imbalances, any of which can cause fainting.
when should you see a neurologist for child fainting in Arizona?
Not every fainting episode means an immediate specialist visit, but some do. See a pediatric neurologist if your child:
- Fainted during physical activity or exercise
- Lost consciousness with no warning signs or prodromal symptoms
- Had jerking movements, eye deviation, or prolonged confusion afterward
- Has fainted multiple times over weeks or months
- Has a personal or family history of heart problems
- Hit their head during the fall, in which case pediatric concussion care may also be needed
- Has other symptoms like severe headaches, vision changes, or neurological complaints
managing syncope in Arizona's climate
The Phoenix metro area makes things harder for kids prone to syncope. Extreme heat speeds up dehydration and dilates blood vessels, and both lower blood pressure and raise the risk of fainting. Dr. Zach gives Arizona families specific advice: drink aggressively with electrolyte fluids before and during outdoor activities, avoid standing for long periods in the heat, wear light breathable clothing, and learn the early warning signs so a child can sit or lie down before a full episode.
For school-aged children with recurring syncope, building a plan with the school nurse and making sure teachers and coaches understand the condition keeps kids safe and in class.
care at Rose Medical Pavilion
A single fainting episode can leave a family anxious for months, bracing for the next one. Dr. Tamara Zach MD gives families across Phoenix, AZ the clarity that comes from a thorough evaluation. Whether the syncope turns out to be a harmless vasovagal response or something that needs ongoing management, you deserve a clear diagnosis and a real plan instead of uncertainty.
If your child has had a loss of consciousness or an unexplained fainting episode, schedule a consultation with Dr. Zach at Rose Medical Pavilion. Earlier evaluation gives you better answers.
Schedule an Appointment
Questions about your child's neurological health? Dr. Tamara Zach MD at Rose Medical Pavilion is here to help. Call (623) 257-ROSE (7673) or schedule online.