Can children have complications from sleep apnoea? 

Paediatric sleep apnoea is a serious condition that can lead to a variety of long-term health and developmental complications if it is not identified and managed appropriately. Unlike adults, children are in a critical phase of physical and cognitive growth, meaning that the frequent interruptions to breathing and oxygen levels during the night can have unique and lasting effects. Recognising the potential risks associated with disordered breathing in younger patients is essential for ensuring they reach their full developmental potential and maintain good cardiovascular health throughout their lives. 

What We’ll Discuss in This Article 

• The impact of sleep apnoea on a child’s physical growth and development 

• Common behavioural and cognitive complications seen in school 

• Cardiovascular risks associated with paediatric airway obstruction 

• The relationship between sleep apnoea and bedwetting 

• How untreated apnoea affects a child’s metabolic health 

• The importance of early intervention to prevent permanent complications 

Physical Growth and Developmental Delays 

Children can experience significant physical complications from sleep apnoea, primarily because the condition interferes with the production of essential growth hormones. Obstructive sleep apnoea (OSA) in children is often caused by enlarged tonsils or adenoids that block the airway during sleep. Because growth hormone is primarily released during deep, slow wave sleep, the frequent awakenings (arousals) triggered by breathing pauses can lead to a condition sometimes referred to as “failure to thrive,” where a child does not gain weight or height at the expected rate. 

When a child’s sleep is fragmented, their body remains in a state of high stress, consuming energy that should be used for physical development. Furthermore, the increased work of breathing against a blocked airway burns additional calories during the night. In many cases, once the underlying cause of the apnoea is treated, such as through the surgical removal of tonsils, children often experience a “catch up” period of rapid growth and improved physical health. 

Behavioural and Cognitive Complications 

One of the most common complications of paediatric sleep apnoea is a significant impact on a child’s behaviour and their ability to learn and concentrate in school. Unlike adults who typically become sleepy when tired, children often become hyperactive, irritable, or aggressive as a result of chronic sleep deprivation. NICE clinical knowledge summaries note that symptoms of paediatric OSA can include behavioural problems, hyperactivity, and poor school performance. 

These behavioural signs are sometimes mistaken for other conditions, such as Attention Deficit Hyperactivity Disorder (ADHD), because the child is struggling to regulate their emotions and maintain focus. Long term sleep fragmentation can lead to difficulties with memory consolidation and executive function, making it harder for children to follow complex instructions or retain new information. Addressing the sleep disorder early is vital for supporting their educational progress and emotional wellbeing. 

Cardiovascular and Metabolic Risks 

While heart problems are more frequently associated with adult sleep apnoea, children with severe, untreated airway obstruction are also at risk of cardiovascular complications. The repeated drops in blood oxygen levels (hypoxia) and the resulting stress response can lead to increased blood pressure and strain on the right side of the heart. Over time, this can affect the structural health of the heart and blood vessels, potentially leading to long term cardiovascular issues. 

Metabolic complications are also a concern, particularly regarding the way the body processes sugar and manages weight. Sleep apnoea can contribute to insulin resistance, even in children who are not significantly overweight. This creates a complex cycle where the sleep disorder and metabolic health negatively influence each other, increasing the risk of childhood obesity and related health challenges. 

Complication Category	Potential Impact on the Child
Physical	Stunted growth and delayed physical milestones.
Cognitive	Reduced concentration, memory issues, and learning delays.
Behavioural	Hyperactivity, irritability, and social difficulties.
Systemic	High blood pressure and increased metabolic stress.

Nocturnal Symptoms and Quality of Life 

Other complications of paediatric sleep apnoea include persistent bedwetting (nocturia) and a generally reduced quality of life. The physiological stress caused by breathing pauses can disrupt the hormonal signals that regulate urine production at night, leading to accidents in children who would otherwise be dry. This can have a significant impact on a child’s self esteem and their willingness to participate in social activities like sleepovers. 

The chronic exhaustion, even if it manifests as hyperactivity, means that children may lack the energy for physical play and sports. This can lead to a more sedentary lifestyle, which further compounds the risks to their health. Because the symptoms occur at night, parents may only see the daytime consequences, making it essential to monitor for nighttime signs like loud snoring, gasping, or unusual sleeping positions that suggest the child is struggling to breathe. 

Conclusion 

Children can experience a wide range of complications from sleep apnoea, including stunted growth, behavioural challenges, and increased cardiovascular stress. Because sleep is vital for every aspect of a child’s development, persistent breathing interruptions can have lasting effects on their cognitive and physical health. Early diagnosis and treatment are essential for preventing these complications and ensuring a child can grow and learn effectively. If you experience severe, sudden, or worsening symptoms, call 999 immediately. 

Authority Snapshot (E-E-A-T Block) 

This article outlines the potential developmental and health complications of paediatric sleep apnoea to provide parents with safe, factual information. It was written by the MyPatientAdvice Medical Content Team and reviewed by Dr. Stefan Petrov, a UK-trained physician with experience in general medicine and emergency care. All content is strictly aligned with current NHS and NICE clinical guidelines to ensure the highest standards of medical safety for children.