Development of a clinical score for the use of nebulizers in primary care through consensus by an expert working group

ABSTRACT

Background: The use of nebulizers is an important and useful method for delivering drugs to the lungs in patients with various airway and lung parenchymal disorders. Use of nebulization had markedly increased during the COVID-19 pandemic. This had raised concerns about the potential spread of infection to others in the surroundings exposed to the virus dissemination through aerosolized particles. We considered it necessary to ensure appropriate use of nebulizers by primary care physicians and therefore developed a simple nebulization score to decide when to use nebulizers. Methods: An expert working group (EWG) of pulmonologists was formed who using a semi-Delphi method developed a list of variables and a cut-off score. The EWG started with 55 variables developed through an exhaustive review of literature. These were further reduced to smaller number that had the maximum score as well as concordance with the EWG. The scores ranged from 1-10 (completely disagree to completely agree) and only those above 7.5 were selected. Results: A total of 8 variables with the highest scores were selected [Table 1] which had a total maximum score of 40. A score of <15 was suggested to indicate not-to use and >20 to suggest a definite-use of nebulizer. A score between 15-20 was suggested to use as per physician judgement. A separate table of 12 conditions was made where use of nebulizers was mandatory. Conclusion: This first of its kind nebulizer score should be used by primary care physicians to decide which patients should be put on nebulization treatment.