Bronquiolitis Viral en Pediatria: Tratamiento y Manejo

Medidas de Soporte

• La aspiración de secreciones nasales es una medida de soporte importante para facilitar la respiración y alimentación en pacientes pediátricos con bronquiolitis viral 1, 2
• El posicionamiento adecuado, como elevar ligeramente la cabecera de la cama, puede facilitar la respiración en pacientes pediátricos con bronquiolitis viral 1

Evaluación de Factores de Riesgo

• La edad menor de 12 semanas es un factor de riesgo para enfermedad grave en pacientes pediátricos con bronquiolitis viral 3
• La historia de prematuridad es un factor de riesgo para enfermedad grave en pacientes pediátricos con bronquiolitis viral 3
• La enfermedad cardiopulmonar subyacente es un factor de riesgo para enfermedad grave en pacientes pediátricos con bronquiolitis viral 3
• La inmunodeficiencia es un factor de riesgo para enfermedad grave en pacientes pediátricos con bronquiolitis viral 3, 1

Criterios para Hospitalización

• La dificultad respiratoria moderada a severa es un criterio para hospitalización en pacientes pediátricos con bronquiolitis viral 1, 2
• La dificultad para alimentarse o deshidratación es un criterio para hospitalización en pacientes pediátricos con bronquiolitis viral 1, 2
• La apnea es un criterio para hospitalización en pacientes pediátricos con bronquiolitis viral 1

Manejo del Paciente con Tos Crónica Post-Bronquiolitis

• No se recomienda el uso de medicamentos para asma en niños con tos persistente después de un episodio de bronquiolitis viral, a menos que exista evidencia adicional de asma 4, 5, 6
• No se recomienda el uso de agentes osmóticos inhalados como solución salina hipertónica en niños con tos persistente después de un episodio de bronquiolitis viral 4, 5, 6
• La evaluación de la presencia de indicadores específicos de tos y la consideración de un ciclo de antibióticos de 2 semanas dirigido a bacterias respiratorias comunes es importante en casos de tos húmeda o productiva sin enfermedad subyacente 4, 5, 6

Puntos Importantes a Considerar

• La bronquiolitis es una enfermedad autolimitada en la mayoría de los niños, con una duración media de 8-15 días 4, 7
• El 90% de los niños están libres de tos a los 21 días 4, 7

Bronchiolitis Management in Children

Diagnosis and Assessment

• The American Academy of Pediatrics recommends that children with recurrent episodes of "bronchiolitis" after the first year of life likely do not have viral bronchiolitis, but rather recurrent wheezing or asthma, and should not receive treatment for acute bronchiolitis 8
• Children with a history of prematurity (especially <32 weeks of gestation) are at high risk for severe disease and require close monitoring 8
• Children with hemodynamically significant cardiopulmonary disease are at high risk for severe disease and require close monitoring 8
• Children with chronic lung disease of prematurity who required oxygen >21% during the first 28 days of life are at high risk for severe disease and require close monitoring 8

Prevention and Treatment

• The American Academy of Pediatrics recommends administering palivizumab during the first year of life to infants with hemodynamically significant heart disease, chronic lung disease of prematurity, or a history of prematurity (≤35 weeks of gestation) 8
• Supplemental oxygen should only be used if the oxyhemoglobin saturation is <90% 8
• The European Respiratory Society notes that early identification and treatment of protracted bacterial bronchitis can prevent the development of bronchiectasis 9
• The European Respiratory Society reports that the rates of resolution or improvement after appropriate treatment in children with radiographically confirmed bronchiectasis can be as high as 64% 9

Acute Bronchiolitis in Infants – First 24 Hours: Evidence‑Based Recommendations

Diagnosis

• In children younger than 2 years, acute bronchiolitis is diagnosed solely on history and physical examination, without routine laboratory or radiologic testing. 10
• Typical presenting features include a preceding runny nose and cough, followed by lower‑airway signs such as expiratory wheeze and/or crackles on auscultation. [10][11]
• Additional objective findings are tachypnea and increased work of breathing. [10][12]
• The condition is most often viral in origin, with respiratory syncytial virus, adenovirus, and influenza viruses being the predominant pathogens. 11

Assessment of Risk for Severe Disease

• Infants younger than 12 weeks of age have a higher risk of severe bronchiolitis and apnea. [10][12]
• Prematurity, especially gestational age < 32 weeks, markedly increases the risk of a complicated course. [10][12]
• Underlying cardiopulmonary disease (hemodynamically significant congenital heart disease or chronic lung disease) is a recognized risk factor for severe illness. [10][12]
• Primary immunodeficiency also predisposes to a more severe presentation. [10][12]

Symptomatic Management (First Day)

• Nasal suction to clear secretions and facilitate breathing and feeding.
• Positioning with the head of the crib slightly elevated to improve airway patency.
• Adequate hydration to maintain fluid balance.
• Supplemental oxygen only when peripheral oxygen saturation falls below 90 %.

No antibiotics, bronchodilators, or corticosteroids are recommended for routine use in this age group unless there is clear evidence of a concurrent asthma phenotype.

Natural History

• Acute bronchiolitis is a self‑limiting illness; the cough typically resolves within 8–15 days on average. [13][11]
• 90 % of infants are cough‑free by day 21 of illness. [13][11]

When to Consider Further Evaluation

• A cough persisting more than 4 weeks should prompt assessment for alternative diagnoses (e.g., protracted bacterial bronchitis) according to chronic cough guidelines. [13][11]

All statements are supported by the cited peer‑reviewed sources.