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Published on: December 6, 2016
[Correlation between serum uric acid levels and obstructive sleep apnea/hypopnea syndrome in children]
Zhen-yun Huang1, Da-bo Liu, Gen-ping Wan
1Department of Otorhinolaryngology, Guangzhou Women and Children's Medical Center, Guangzhou 510120, China.
Insights
Serum uric acid (UA) levels were not elevated in children with obstructive sleep apnea/hypopnea syndrome (OSAHS). However, overweight and obese children, regardless of OSAHS, showed higher UA levels compared to normal BMI children.
Area of Science:
- Pediatric Endocrinology
- Sleep Medicine
- Metabolic Disorders
Context:
- Obstructive sleep apnea/hypopnea syndrome (OSAHS) is increasingly recognized in children.
- Serum uric acid (UA) is a marker of metabolic health.
- The relationship between UA levels and OSAHS in pediatric populations requires further investigation.
Purpose:
- To investigate serum uric acid (UA) levels in children diagnosed with obstructive sleep apnea/hypopnea syndrome (OSAHS).
- To analyze the correlation between serum UA and OSAHS severity indices.
- To compare UA levels based on body mass index (BMI) in children with and without OSAHS.
Summary:
- Serum UA levels did not significantly differ between children with OSAHS and controls.
- Overweight and obese children, irrespective of OSAHS, exhibited significantly higher serum UA levels compared to normal BMI counterparts.
- No significant correlation was found between serum UA levels and OSAHS severity indices (AHI, OAI, oxygen desaturation) in children.
Impact:
- This study highlights that elevated serum UA in children is primarily associated with overweight and obesity, rather than OSAHS itself.
- Findings suggest that managing weight may be crucial for normalizing UA levels in affected children.
- Provides insights into the metabolic profile of pediatric OSAHS, differentiating contributing factors.
Objective:
To explore the level of serum uric acid (UA) in children with obstructive sleep apnea/hypopnea syndrome (OSAHS).
Method:
Between Sep. 2008 and Mar. 2010, 138 children with OSAHS were enrolled in study group. Sixty-five children with accessory auricle or ptosis of upper lid were enrolled into the control group. Furthermore, according to apnea/hypopnea index (AHI) or obstructive apnea index (OAI) the study group was further divided into three subgroups (mild, moderate and severe group). At last, the study group and control group were divided into two groups according to the body mass index (BMI), separately. The fasting serum UA level was compared among the different groups. Then the correlation between the serum UA level and AHI, BMI, oxygen desaturation index, least arterial oxygen saturation (LSaO(2)) and the percentage of total sleep time with arterial oxygen saturation < 0.92 was also analyzed in OSAHS children with or without overweight and obesity respectively.
Result:
The difference of serum UA level between the study group and control group (z = -0.443), and the difference among the three groups (χ(2) = 1.241) was not significant(P > 0.05). The serum UA level in overweight and obese children [study group, 273.0 (238.3 - 357.3); control group, 298.0 (253.0 - 336.0)] was significantly higher than that in children with normal BMI [study group, 246.5(215.8 - 300.0); control group, 266.0 (224.0 - 303.3)] (z = -2.084, -2.214, P < 0.05). That serum UA level did not correlate with the above index of OSAHS was observed in children with or without overweight and obesity in study group (P > 0.05).
Conclusion:
Findings of higher serum UA level were not observed in children with OSAHS. There was no correlation between serum UA level and the above indices of OSAHS. The serum UA level in overweight and obese children was significantly higher than that in children with normal BMI.
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