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. 2024 Jul 19;24(1):376.
doi: 10.1186/s12872-024-04033-4.

A nomogram for predicting CRT response based on multi-parameter features

Yuxuan Lou #  1   2 , Yang Hua #  2 , Jiaming Yang #  2 , Jing Shi  2 , Lei Jiang  2 , Yang Yang  3
Affiliations

A nomogram for predicting CRT response based on multi-parameter features

Yuxuan Lou et al. BMC Cardiovasc Disord. .

Abstract

Objective: To construct a nomogram for predicting the responsiveness of cardiac resynchronization therapy (CRT) in patients with chronic heart failure and verify its predictive efficacy.

Method: A retrospective study was conducted including 109 patients with chronic heart failure who successfully received CRT from January 2018 to December 2022. According to patients after six months of the CRT preoperative improving acuity in the left ventricular ejection fraction is 5% or at least improve grade 1 NYHA heart function classification, divided into responsive group and non-responsive group. Clinical data of patients were collected, and LASSO regression analysis and multivariate logistic regression analysis were used to explore relative factors. A nomogram was constructed, and the predictive performance of the nomogram was evaluated using the calibration curve and decision curve analysis (DCA).

Results: Among the 109 patients, 61 were assigned to the CRT-responsive group, while 48 were assigned to the non-responsive group. LASSO regression analysis showed that left ventricular end-systolic volume, diffuse fibrosis, and left bundle branch block (LBBB) were independent factors for CRT responsiveness in patients with heart failure (P < 0.05). Based on the above three predictive factors, a nomogram was constructed. The ROC curve analysis showed that the area under the curve (AUC) was 0.865 (95% CI 0.794-0.935). The calibration curve analysis showed that the predicted probability of the nomogram is consistent with the actual occurrence rate. DCA showed that the line graph model has an excellent clinical net benefit rate.

Conclusion: The nomogram constructed based on clinical features, laboratory, and imaging examinations in this study has high discrimination and calibration in predicting CRT responsiveness in patients with chronic heart failure.

Keywords: Cardiac resynchronization therapy (CRT); Heart failure; Multiparameter features; Nomogram.

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Conflict of interest statement

The authors declare no competing interests.

Figures

Fig. 1
Fig. 1
Lasso regression screening variables
Fig. 2
Fig. 2
Lasso regression generates the best penalty coefficient
Fig. 3
Fig. 3
Nomogram model for predicting responsiveness to CRT therapy in patients with chronic heart failure
Fig. 4
Fig. 4
ROC curve of nomogram model predicting the occurrence of CRT response in patients with chronic heart failure
Fig. 5
Fig. 5
Calibration curve of nomogram model for predicting the occurrence of CRT response in patients with chronic heart failure
Fig. 6
Fig. 6
DCA decision curve of nomogram model predicting the occurrence of CRT response in patients with chronic heart failure
See this image and copyright information in PMC

References

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