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Question
The figure indicates angioplasty of heart. What is B filled with?
The figure indicates angioplasty of heart. What is B filled with?
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Solution
The correct option is C Helium gas
The Intra-aortic balloon pump (IABP) is a mechanical device that increases myocardial oxygen perfusion while at the same time increasing cardiac output. Increasing cardiac output increases coronary blood flow and therefore myocardial oxygen delivery. It actively deflates in systole, increasing forward blood flow by reducing afterload through a vacuum effect. It actively inflates in diastole, increasing blood flow to the coronary arteries via retrograde flow. These actions combine to decrease myocardial oxygen demand and increase myocardial oxygen supply. Helium is used to inflate the balloon as it is easily dissolved in blood and prevents the risk of air emboli if the catheter ruptures.
The Intra-aortic balloon pump (IABP) is a mechanical device that increases myocardial oxygen perfusion while at the same time increasing cardiac output. Increasing cardiac output increases coronary blood flow and therefore myocardial oxygen delivery. It actively deflates in systole, increasing forward blood flow by reducing afterload through a vacuum effect. It actively inflates in diastole, increasing blood flow to the coronary arteries via retrograde flow. These actions combine to decrease myocardial oxygen demand and increase myocardial oxygen supply. Helium is used to inflate the balloon as it is easily dissolved in blood and prevents the risk of air emboli if the catheter ruptures.
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