Pathophysiological Processes in Heart Failure

A 60-year-old male patient is admitted to the emergency department with chest pain and shortness of breath. His past medical history includes hypertension, diabetes mellitus type 2, and a previous myocardial infarction. Upon examination, he presents with jugular vein distention, bilateral crackles on lung auscultation, and peripheral edema. A 12-lead ECG shows ST-segment elevations in leads II, III, and aVF. The patient's serum troponin I level is elevated.

Based on the provided clinical scenario, you are asked to fill in the blank regarding the pathophysiological processes underlying the patient's condition. The patient's clinical presentation is most consistent with __________ obstruction due to the increased workload on the heart.