Angiographic Lesion Complexity Score and In-Hospital Outcomes after Percutaneous Coronary Intervention

ObjectiveWe devised a percutaneous coronary intervention (PCI) scoring system based on angiographic lesion complexity and assessed its association with in-hospital complications.BackgroundAlthough PCI is finding increasing application in patients with coronary artery disease, lesion complexity can lead to in-hospital complications.MethodsData from 3692 PCI patients were scored based on lesion complexity, defined by bifurcation, chronic total occlusion, type C, and left main lesion, along with acute thrombus in the presence of ST-segment elevation myocardial infarction (1 point assigned for each variable).ResultsThe patients’ mean age was 67.5 +/- 10.8 years; 79.8% were male. About half of the patients (50.3%) presented with an acute coronary syndrome, and 2218 (60.1%) underwent PCI for at least one complex lesion. The patients in the higher-risk score groups were older (p 3.0 g/dL (3.1%, 11.0%, 13.1%, 10.3%, 28.6%, p ConclusionThe complexity score was cumulatively associated with in-hospital mortality and complication rate and could be used for event prediction in PCI patients.