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Acute bronchiolitis is a viral infection that occurs in children most commonly in the first 2 years of life and is characterized by respiratory symptoms, resulting in wheezing and/or crackles upon auscultation. It is usually a self limiting illness. However, this condition may be associated with several severe complications, such as apnea,respiratory failure, or secondary bacterial infection
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Acute bronchiolitis is a viral infection that occurs in children most commonly in the first 2 years of life and is characterized by respiratory symptoms, resulting in wheezing and/or crackles upon auscultation. It is usually a self limiting illness. However, this condition may be associated with several severe complications, such as apnea,respiratory failure, or secondary bacterial infection. Bronchiolitis is a significant cause of respiratory disease worldwide. according to the World Health Organization bullet in, an estimated 150 million new cases occur annually; 11-20 million (7-13%) of these cases are severe enough to require hospital admission. Worldwide, 95% of all cases occur in developing countries. Typically, initial clinical manifestations include upper respiratory tract symptoms such as cough, nasal congestion, and low-grade fever lasting 1 to 3 days, followed by expiratory wheezing, nasal flaring, fine crackles, oxygen saturation on presentation<94%, tachypnea, increased work of breathing, use of accessory muscles, and retractions in some patients. The need for hospitalization depends on the presence of respiratory symptoms (degree of retractions, increased respiratory effort, decreased oxygen saturation), cyanosis, restlessness or lethargy, and underlying disease states, including apnea. Since no definitive antiviral therapy exists for most causes of bronchiolitis, management of these infants should be directed toward symptomatic relief and maintenance of hydration and oxygenation. One medication that has demonstrated promising results in the management of acute bronchiolitis is nebulized hypertonic saline , Its hyperosmolarity helps to absorb water from the mucosal and submucosal space, thereby increasing mucociliary function by clearing fluids accumulated in the airway and mucus plugs in the lungs. Hypertonic saline can also induce cough to help enhance mucus clearance. The American Academy Of Pediatrics guidelines recommend administration of hypertonic saline in hospitalized bronchiolitis patients. The most common dosage studied is hypertonic saline 3% 4 mL per dose inhaled by nebulizer every 4 to 6 hours, which may take ≥24 hours to work and is typically continued while the child is hospitalized.
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75 participants in 3 patient groups
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mohamed El Tellawy, professor; Duaa Raafat, Assis prof
Data sourced from clinicaltrials.gov
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