Final answer:
With left ventricle heart failure, pulmonary edema is the most likely occurrence due to the inability of the left heart to pump blood effectively, leading to fluid accumulation in the lungs.
Step-by-step explanation:
The most likely occurrence with left ventricle heart failure, also known as congestive heart failure affecting only the left ventricle, is pulmonary edema. This condition happens when the left ventricle cannot pump sufficient blood into the systemic circulation, causing a backlog of blood in the pulmonary circulation. This backup starts in the left atrium, extends into the pulmonary veins, and then the pulmonary capillaries, leading to increased hydrostatic pressure that pushes fluid into lung tissues.