A 68-year-old man is brought to hospital following an episode of crushing chest pain. ECG on admission showed ST-segment elevations in the anterior leads. 48 hours after hospitalization he experiences acute-onset dyspnea. There are diffuse crackles one-third of the way up both lung fields. Which of the following is the most likely explanation for this patient’s acute presentation?
2/6 diastolic blowing murmur with bounding pulses
2/6 diastolic rumbling murmur
2/6 holodiastolic-holosystolic murmur
2/6 holosystolic murmur
2/6 midsystolic murmur