Emergency Risks and Anesthesia Precautions

For a child with ROHHAD, an emergency can look different than it does for other children. Because the brain’s “alarm system” for low oxygen or high carbon dioxide (CO2) is impaired, your child may not appear to be struggling for breath even when their body is in crisis ^[1]. This makes proactive planning and an urgent response to illness essential.

The Risk of Respiratory Arrest

A severe risk in ROHHAD is cardiorespiratory arrest, which is often related to unrecognized alveolar hypoventilation (breathing that is too shallow to sustain life) ^[2][3].

• Silent Danger: During sleep or illness, CO2 levels can rise to dangerous levels while oxygen levels remain deceptively normal for a period. Because children with ROHHAD often lack the typical “gasping” or behavioral awareness of this distress, the first sign of a problem can be a sudden drop in heart rate or breathing ^[1][4].
• The Infection Trigger: A common cold or respiratory infection is a major risk for a child with ROHHAD. These infections can rapidly worsen hypoventilation ^[3].

Follow your child’s individualized sick-day plan. Signs such as an inability to wake, pauses or ineffective breathing, blue/gray coloring, or collapse mean you should call emergency services immediately. A new fever, cough, or unusual daytime sleepiness means you should contact the ROHHAD care team urgently. Never change ventilator settings or medication doses independently unless instructed by your sick-day plan.

Anesthesia and Sedation Precautions

Anesthesia and sedation are high-risk events for any child with a central hypoventilation disorder. The medications used to induce sleep further suppress the brain’s drive to breathe ^[5].

In a small, selected retrospective cohort combining children with ROHHAD and CCHS undergoing surgery, several complications were common ^[6]:

• Hypercarbia: Over 50% of children in the series experienced dangerously high CO2 levels during the procedure ^[6].
• Bradyarrhythmias: More than 40% experienced a dangerously slow or irregular heart rate ^[6][3].
• Hypothermia: Even with warming blankets, over a third of children experienced a drop in body temperature below 35.5°C (95.9°F) ^[6].
• Postoperative Failure: Many children struggle to wake up or “wean” from the ventilator after surgery, requiring intensive care or a temporary transition to 24-hour BiPAP ^[7][6].

Always ensure your child’s surgery is planned in advance at a pediatric center where the anesthesiologist is experienced with central hypoventilation disorders ^[5].

Your Individualized “ER Letter”

You should carry a one-page, clinician-completed emergency plan from your child’s specialists. This letter must be handed to EMS or ER staff immediately upon arrival. It should explicitly state the following:

1. Oxygen Guidance: Oxygen can be life-saving and must not be withheld if the child is hypoxemic. However, it should be given alongside ventilatory support (like BiPAP or a manual bag-mask). Oxygen alone can “mask” the fact that the child isn’t breathing enough, allowing CO2 to reach dangerous levels while oxygen saturation looks normal ^[4][1].
2. Monitoring Requirements: The child requires continuous pulse oximetry AND continuous CO2 monitoring (capnography or blood gases) ^[4][6].
3. Adrenal Support: If the child has documented adrenal insufficiency, they may require “stress-dose” hydrocortisone during illness or stress to prevent an adrenal crisis ^[8][3].
4. Fluid Balance: If the child has documented central diabetes insipidus or adipsia, the letter must include their specific fluid and sodium targets to avoid dangerous imbalances ^[3][9].

Having this personalized plan in writing provides the emergency team with the child’s baseline settings and the specialized care parameters they need ^[8].