[Validation of an acute bronchiolitis severity scale].

Area of Science:

• Pediatrics
• Respiratory Medicine
• Clinical Assessment

Background:

• Acute bronchiolitis (AB) is a frequent pediatric illness leading to significant seasonal hospitalizations.
• Current management lacks standardized clinical interpretation due to unvalidated severity assessment scales.
• Homogeneous interpretation is crucial for effective AB treatment.

Purpose of the Study:

• To develop a novel Acute Bronchiolitis Severity Scale (ABSS).
• To rigorously validate the created ABSS for clinical use.
• To establish a reliable measure for AB severity.

Main Methods:

• A parameterized construct was developed, incorporating scores for respiratory rate, heart rate, respiratory effort, auscultation findings (wheezing, crackles), and inspiration/expiration ratio.
• The ABSS was validated on a cohort of patients diagnosed with AB.
• Reliability was assessed through internal consistency, test-retest, external validity, and inter-observer agreement analyses.

Main Results:

• Internal consistency yielded a Cronbach's alpha of 0.83.
• Test-retest reliability showed a high Kappa agreement index of 0.93.
• Inter-observer agreement was demonstrated with a Kappa index of 0.682 (p<0.05).

Conclusions:

• The developed Acute Bronchiolitis Severity Scale (ABSS) demonstrates strong reliability.
• The ABSS is a promising tool for objective and consistent measurement of AB severity.
• This scale can enhance clinical decision-making and standardize care for acute bronchiolitis.