A predictive nomogram for intramyocardial hemorrhage in patients with ST-segment elevation myocardial infarction undergoing primary percutaneous coronary intervention based on coronary angiography-derived index of microcirculatory resistance.

ABSTRACT:

Background

Intramyocardial hemorrhage (IMH) after ST-segment elevation myocardial infarction (STEMI) reperfusion increases the risk of major adverse cardiovascular events (MACE). We aimed to integrate a coronary angiography-derived index of microcirculatory resistance (caIMR) with clinical features in a nomogram model for predicting IMH in patients with STEMI following primary percutaneous coronary intervention (PCI).

Methods

A retrospective study included 309 STEMI patients admitted at Xuzhou Medical University for primary PCI from 2022 to 2023 in training and validation cohorts. Their caIMR was calculated from coronary angiography images and IMH was assessed by cardiac Magnetic Resonance (CMR). A nomogram was constructed through logistic regression analyses. Predictive acc

SUBMITTER: Wang Y 

PROVIDER: S-EPMC12330113 | biostudies-literature | 2025 Aug

REPOSITORIES: biostudies-literature