What is the most common congenital heart disease?

Study for the PANCE Cardiology Test. Enhance your knowledge with comprehensive flashcards and multiple-choice questions. Each question comes with hints and detailed explanations. Prepare thoroughly for your exam!

Multiple Choice

What is the most common congenital heart disease?

Explanation:
Understanding prevalence helps here: ventricular septal defect is the most common congenital heart defect. It is a hole in the wall between the heart’s lower chambers, which allows a left-to-right shunt. Many small VSDs close on their own as the child grows, while larger ones can cause symptoms from heart failure and pulmonary overcirculation if not addressed. Atrial septal defects are relatively common too, but not as frequent as VSDs. Patent ductus arteriosus is especially common in premature infants, yet it does not exceed VSD in overall frequency. Tetralogy of Fallot is much less common than VSD. That’s why this defect is the best answer.

Understanding prevalence helps here: ventricular septal defect is the most common congenital heart defect. It is a hole in the wall between the heart’s lower chambers, which allows a left-to-right shunt. Many small VSDs close on their own as the child grows, while larger ones can cause symptoms from heart failure and pulmonary overcirculation if not addressed. Atrial septal defects are relatively common too, but not as frequent as VSDs. Patent ductus arteriosus is especially common in premature infants, yet it does not exceed VSD in overall frequency. Tetralogy of Fallot is much less common than VSD. That’s why this defect is the best answer.

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