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Interactive worksheet
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Clinical contextWhy this tool matters and how to interpret it
Understand the result,
not just the number.
CRT-N Response Probability: Explanation and Clinical Context This nomogram predicts the likelihood of a positive response to Cardiac Resynchronization Therapy (CRT) in patients with chronic heart failure. It incorporates three independent factors: Left Ventricular End-Systolic Volume (LVESV), Diffuse Myocardial Fibrosis, and Left Bundle Branch Block (LBBB). Higher LVESV and myocardial fibrosis percentages, along with the presence of LBBB, are associated with a lower probability of CRT response.
The model has demonstrated high discrimination and calibration, with an Area Under the Curve (AUC) of 0.865, indicating strong predictive performance.
Evidence & references1 primary source mapped
- Source 1
Lou Y, et al. A nomogram for predicting CRT response based on multi-parameter features. BMC Cardiovasc Disord. 2024;24:123. doi:10.1186/s12872-024-04033-4
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