Acute left main coronary artery (LMCA) occlusion is associated with a high mortality rate. The majority of patients with this clinical condition die suddenly or from cardiogenic shock. We report a case of cardiogenic shock resulting from acute main coronary occlusion. Emergency cardiac catheterization was performed and coronary angiography showed a totally occluded LMCA. Prompt revascularization by means of primary LMCA stenting was successful and the patient was discharged 16 days later without neurological deficit or clinical signs of heart failure. We suggest that the rapid coronary angiography followed by angioplasty and primary stent implantation was instrumental in saving this patient's life.