Aleteo nasal como factor pronóstico de mortalidad en el paciente con disnea grave / Nasal flaring as a predictor of mortality in patients with severe dyspnea

RESUMEN

Objetivos: Determinar si la presencia de aleteo nasal es un factor de gravedad clínica y pronóstico de mortalidad hospitalaria en el paciente que consulta en urgencias por disnea. Método: Estudio prospectivo observacional un céntrico. Se incluyeron pacientes mayores de 15 años, que demandaron atención urgente por disnea, catalogados como niveles II y III por el Modelo Andorrano de Triaje (MAT). Se evaluó la presencia de aleteo nasal por dos observadores. Se recogieron variables demográficas, clínicas, signos de dificultad respiratoria, signos vitales, gasometría arterial y evolución clínica (ingreso hospitalario y mortalidad). Se realizaron análisis bivariantes y multivariantes con modelos de regresión logística. Resultados: Se incluyeron 246 pacientes, de edad media ± DE 77 (13) años (DE 13,2) y un 52% de mujeres. Un19,5% presentaron aleteo nasal. Los pacientes con aleteo nasal tuvieron mayor gravedad en el triaje, más taquipnea, peor oxigenación, más acidosis y más hipercapnia. En el análisis bivariante los factores pronósticos de mortalidad hospitalaria fueron la edad (OR 1,05; IC95% 1,01-1,10), la atención prehospitalaria por el servicio emergencias médicas (OR 3,97; IC95% 1,39-11,39), el nivel de triaje II (OR 4,19; IC95% 1,63-10,78), la presencia de signos de dificultad respiratoria como el aleteo nasal (OR 3,79; IC 95% 1,65-8,69), la presencia de acidosis (OR 7,09; IC95% 2,97-16,94) y la hipercapnia (OR 2,67; IC95% 1,11-6,45). En el análisis multivariante, la edad, el nivel de triaje y el aleteonasal se mantuvieron como factores pronósticos independientes de mortalidad (AU)

ABSTRACT

Objective: To determine whether the presence of nasal flaring is a clinical sign of severity and a predictor of hospital mortality in emergency patients with dyspnea. Methods: Prospective, observational, single-center study. We enrolled patients older than 15 years of age who required attention for dyspnea categorized as level II or III emergencies according to the Andorran Medical Triage system. Two observers evaluated the presence of nasal flaring. We recorded demographic and clinical variables, including respiratory effort, vital signs, arterial blood gases, and clinical course (hospital admission and mortality). Bivariable analysis was performed and multivariable logistic regression models were constructed. Results: We enrolled 246 patients with a mean (SD) age of 77 (13) years; 52% were female. Nasal flaring was present in 19.5%. Patients with nasal flaring had triage levels indicating greater severity and they had more severe tachypnea, worse oxygenation, and greater acidosis and hypercapnia. Bivariable analysis detected that the following variables were associated with mortality age (odds ratio [OR], 1.05; 95% CI, 1.01–1.10), prehospital care from the emergency medical service (OR, 3.97; 95% CI, 1.39–11.39), triage level II (OR, 4.19; 95% CI, 1.63–10.78), signs of respiratory effort such as nasal flaring (OR, 3.79; 95% CI, 1.65–8.69), presence of acidosis (OR, 7.09; 95% CI, 2.97–16.94), and hypercapnia (OR, 2.67; 95% CI, 1,11–6,45). The factors that remained independent predictors of mortality in the multivariable analysis were age, severity (triage level), and nasal flaring. Conclusions: In patients requiring emergency care for dyspnea, nasal flaring is a clinical sign of severity and a predictor of mortality (AU)