Which of the following is NOT a cause of dysphagia in infants and children?

Dysphagia, or difficulty swallowing, can arise from various medical and physiological issues in infants and children. Low birth weight, heart disease, and prematurity are all known factors that can contribute to dysphagia.

Low birth weight can lead to underdeveloped oral-motor skills, making it more difficult for infants to coordinate sucking and swallowing. Similarly, prematurity often results in developmental delays, including those related to feeding and swallowing. Congenital heart disease can also impact an infant's ability to feed effectively due to the extra energy required for feeding and the potential for respiratory complications that can interfere with the feeding process.

On the other hand, complications from asthma are primarily respiratory issues, which may not directly affect swallowing capabilities. While children with asthma might have some difficulty feeding during acute episodes due to breathing problems, asthma itself does not typically lead to dysphagia as a primary concern. Thus, it is not considered a direct cause of dysphagia in infants and children, setting it apart from the other options presented.