Question
A four-year-old boy has recently been having difficulty breathing and wheezing, with an abnormal electrocardiogram but normal results from the myocardial enzyme test and a normal heart ultrasound. The child has not reported feeling unwell; the severe symptom is only the heavy wheezing.
Answer
Based on the description, this may be a case of bronchial asthma. Although the myocardial enzymes are normal, it cannot be completely ruled out that there may be myocarditis, especially if there has been a history of cold and fever in the past month. It is recommended to first use a bronchodilator to observe the effect; if it is effective, it indicates that it may be asthma. This is a suggestion for the issue of “a four-year-old boy recently having difficulty breathing and wheezing,” hoping it will be helpful to you, and wishing you good health!