{
  "abstract": "Obesity is increasingly recognised in paediatrics, defined as having a Body Mass Index (BMI) ≥95th percentile for age and sex in children aged 2 and older. Obstructive sleep apnoea hypopnoea syndrome (OSAHS) may be present in this population due to increased upper airway resistance, therefore may require long-term non-invasive (NIV) support. Our primary aim was to evaluate BMI change in obese paediatric patients initiated on NIV who present with no other significant comorbidities.This was a retrospective study, from 2015 to 2025. Anthropometric measurements (height, weight and BMI) were recorded following a positive cardiorespiratory sleep study (CRSS) or overnight oximetry. Measurements were monitored at 3, 6, 12 and 24 months following NIV establishment. Compliance data was collected from follow up clinics. Good compliance was defined as ≥4 hours/night ≥70% of nights.31 patients were included - 23 male, 8 female (mean age 11.5, [10.2, 12.8], weight z-score 3.41 [2.9, 3.9], BMI z-score 3.41 [3.0, 3.8]). CRSS results showed significantly elevated desaturation index ≥4 dips/hour (table 1). 13 out of 31 had previous adenotonsillectomy after their first sleep study, however, residual OSAS led to treatment with NIV. Overall, compliance was suboptimal with 31% achieving good compliance. Repeat CRSS when on NIV demonstrated significant improvement in desaturation index and hypoxia (P<0.05), table 1. There was no significant change in the BMI over the 24 month period after NIV establishment, P>0.05 (figure 1).NIV is an effective treatment for improving OSAHS in obese paediatric patients. However, its impact on BMI appears limited with no significant improvement over a 24 month period. Suboptimal compliance is a considerable barrier to optimising outcomes in obese children. These findings reinforce the importance of integrated approach including respiratory support and obesity management in this population. Future research should include lifestyle factors as well as strategies to improve compliance.Abstract O7 Figure 1BMI trends and compliance in obese children initiated on non-invasive ventilation. Anthropometric trends and NIV treatment in obese paediatric populationAbstract O7 Table 1",
  "authors": [
    {
      "affiliations": [
        "Department of Respiratory and Sleep Physiology, NHS GGC Royal Hospital for Children, Glasgow, Scotland"
      ],
      "name": "Rebecca Lennon"
    },
    {
      "affiliations": [
        "Department of Respiratory and Sleep Physiology, NHS GGC Royal Hospital for Children, Glasgow, Scotland"
      ],
      "name": "Paul Burns"
    },
    {
      "affiliations": [
        "Department of Respiratory and Sleep Physiology, NHS GGC Royal Hospital for Children, Glasgow, Scotland"
      ],
      "name": "Elise Buchan"
    },
    {
      "affiliations": [
        "Department of Respiratory and Sleep Physiology, NHS GGC Royal Hospital for Children, Glasgow, Scotland"
      ],
      "name": "Ross Langley"
    },
    {
      "affiliations": [
        "Department of Respiratory and Sleep Physiology, NHS GGC Royal Hospital for Children, Glasgow, Scotland"
      ],
      "name": "Neil Gibson"
    }
  ],
  "title": "O7 BMI trends and compliance in obese children initiated on non-invasive ventilation",
  "uid": "6cb320e6-cf2e-51ff-a7cf-ebf46c7366c0"
}