murmur in venous air embolism

Q: Which murmur is heard in venous air embolism?

Answer: Millwheel murmur 

 A millwheel murmur is a churning sound that can be heard throughout the cardiac cycle. In such cases, other clinical signs are usually evident. This murmur is usually present with a patient gasping or coughing,, tachypnea, tachycardia or bradycardia, hemodynamic instability, crackles, elevated jugular venous pressure (JVP), and hypoxemia.

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Reference:

1. Gordy S, Rowell S. Vascular air embolism. Int J Crit Illn Inj Sci. 2013;3(1):73–76. doi:10.4103/2229-5151.109428