If the patient has a ventricular septal defect and shows no obvious symptoms, it is possible to initially observe the condition. Firstly, this is a type of congenital heart disease, and it is recommended that the patient undergo a cardiac echocardiography to further confirm the diagnosis. If the defect is relatively large, surgery might sometimes be recommended. If the defect is not very large and the patient shows no obvious symptoms, there might be no need for immediate intervention, and regular monitoring would suffice. During this period, it is still important to monitor changes in the patient's blood pressure and heart rate. If the heart rate is too fast or the blood pressure is high, it might sometimes be necessary to actively treat these issues, possibly using medication to improve symptoms. In terms of treatment, surgery is generally advised as the main approach since medication often does not yield very effective results for this condition.