Pulmonary Function Tests in Sickle Cell Disease

Area of Science:

• Pediatric Pulmonology
• Hematology
• Genetic Disorders

Background:

• Sickle Cell Disease (SCD) is a genetic blood disorder with potential systemic complications.
• Pulmonary involvement is a recognized concern in SCD patients, impacting lung function.
• Understanding pulmonary function in children with SCD is crucial for early intervention and management.

Purpose of the Study:

• To investigate and quantify pulmonary function abnormalities in children diagnosed with Sickle Cell Disease (SCD) in Western India.
• To compare the pulmonary function of children with SCD against a matched group of healthy children without SCD.
• To assess the clinical significance of observed pulmonary function differences in pediatric SCD patients.

Main Methods:

• A cross-sectional study was conducted in Surat, Gujarat, India.
• 99 children aged 6-18 years with SCD (cases) and 99 age/gender-matched healthy children (controls) were recruited.
• Pulmonary function was assessed using spirometry, alongside measurements of weight, height, BMI, and hemoglobin levels.

Main Results:

• Children with SCD had significantly lower mean hemoglobin levels compared to healthy controls (p=0.001).
• Mean Forced Expiratory Volume in 1 second (FEV1) and Forced Vital Capacity (FVC) were significantly reduced in children with SCD (p < 0.001).
• Despite statistical significance, the observed differences in pulmonary function tests were not deemed clinically significant.

Conclusions:

• Pulmonary function tests revealed statistically significant differences between children with SCD and healthy controls.
• The observed pulmonary function differences in pediatric SCD patients were not clinically significant.
• This suggests that while measurable changes occur, they may not represent a substantial clinical impairment in this population.