A nomogram risk prediction model for ischemic mitral regurgitation after primary percutaneous coronary intervention in patients with ST-segment elevation myocardial infarction

Figures

• 

  Fig. 1. Flowchart of patient inclusion. PCI: percutaneous coronary intervention; STEMI: ST-segment elevation myocardial infarction; IMR: ischemic mitral regurgitation

• 

  Fig. 2. Development and verification of a nomogram risk prediction model for the incidence of IMR in STEMI patients hospitalized following PCI. A Nomogram predicting the risk of IMR during hospitalization in STEMI patients following PCI; (B) Model calibration curves predicting the risk of IMR during hospitalization; (C) Clinical impact curves of the model; (D) Model decision curve analysis; (E) ROC curves to evaluate the diagnostic performance of the model; (F) Comparison of the SII/100, LVEF, Gensini score, albumin and ROC curves of the nomogram risk prediction model. LVEF: Left ventricular ejection fraction; SII: Systemic immune-inflammation index

• 

  Fig. 3. Nomogram showing the incidence of IMR in STEMI patients 12, 24, and 36 months following PCI. LVEF: Left ventricular ejection fraction; SII: Systemic immune-inflammation index

• 

  Fig. 4. ROC curves of the nomogram risk prediction model indicating the likelihood of IMR in STEMI patients following PCI at 12, 24, and 36 months of follow-up

• 

  Fig. 5. The nomogram risk prediction model's calibration curves and decision curve analysis (DCA). The nomogram risk prediction model's calibration curves for the probability and proportion of actual IMR occurrence at 12 months (A), 24 months (B), and 36 months (C) are shown. Risk prediction model of DCA validation nomogram for IMR occurrence at 12 months (D), 24 months (E), and 36 months (F)

• 

  Fig. 6. MACEs in STEMI patients with IMR during hospitalization and during post-discharge follow-up following PCI. A Comparison of MACEs that patients in the IMR and non-IMR groups experienced during hospitalization. B Comparison of MACEs that occurred at discharge follow-up between patients in the IMR and non-IMR groups

• 

  Fig. 7. Kaplan–Meier survival analysis of STEMI patients in the nomogram risk prediction model ≤ 95.67 and > 95.67 groups with follow-up MACEs