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Published on: February 17, 2015
Prediction of pacemaker-induced cardiomyopathy using a convolutional neural network based on clinical findings prior
Mitsunori Oida1, Takuya Mizutani2, Eriko Hasumi3
1Department of Cardiovascular Medicine, Graduate School of Medicine, The University of Tokyo, 7-3-1 Hongo, Bunkyo, Tokyo, 113-8655, Japan.
Insights
A new convolutional neural network (CNN) model can predict pacemaker-induced cardiomyopathy (PICM) using pre-implantation clinical data. This tool helps identify patients at risk, enabling timely interventions to prevent heart muscle damage.
Area of Science:
- Cardiology
- Artificial Intelligence in Medicine
- Biomedical Engineering
Background:
- Pacemaker-induced cardiomyopathy (PICM) is a known complication of cardiac pacing.
- Predicting PICM development is challenging despite identified risk factors like high right ventricular pacing burden and pre-existing left ventricular dysfunction.
Purpose of the Study:
- To develop and validate a convolutional neural network (CNN) model for predicting PICM development.
- To utilize pre-pacemaker implantation clinical data for early risk stratification of PICM.
Main Methods:
- A CNN model was trained on a dataset of 31 pre-pacemaker implantation variables from 165 patients with dual-chamber pacemakers.
- The dataset included demographic, clinical, echocardiographic, and laboratory findings.
- Model performance was evaluated using accuracy, sensitivity, specificity, and area under the curve (AUC).
Main Results:
- The CNN model achieved an accuracy of 75.8%, sensitivity of 55.6%, specificity of 83.3%, and an AUC of 0.78.
- The model demonstrated the ability to predict PICM development using pre-implantation clinical data.
- 47 out of 165 patients developed PICM during a mean follow-up of 1.7 years.
Conclusions:
- A CNN model based on pre-pacemaker implantation clinical data can accurately predict the development of PICM.
- This predictive model can aid in identifying high-risk patients for PICM.
- Early identification facilitates timely interventions, such as upgrading to physiological pacing, to prevent adverse outcomes.
Abstract:
Risk factors for pacemaker-induced cardiomyopathy (PICM) have been previously reported, including a high burden of right ventricular pacing, lower left ventricular ejection fraction, a wide QRS duration, and left bundle branch block before pacemaker implantation (PMI). However, predicting the development of PICM remains challenging. This study aimed to use a convolutional neural network (CNN) model, based on clinical findings before PMI, to predict the development of PICM. Out of a total of 561 patients with dual-chamber PMI, 165 (mean age 71.6 years, 89 men [53.9%]) who underwent echocardiography both before and after dual-chamber PMI were enrolled. During a mean follow-up period of 1.7 years, 47 patients developed PICM. A CNN algorithm for prediction of the development of PICM was constructed based on a dataset prior to PMI that included 31 variables such as age, sex, body mass index, left ventricular ejection fraction, left ventricular end-diastolic diameter, left ventricular end-systolic diameter, left atrial diameter, severity of mitral regurgitation, severity of tricuspid regurgitation, ischemic heart disease, diabetes mellitus, hypertension, heart failure, New York Heart Association class, atrial fibrillation, the etiology of bradycardia (sick sinus syndrome or atrioventricular block) , right ventricular (RV) lead tip position (apex, septum, left bundle, His bundle, RV outflow tract), left bundle branch block, QRS duration, white blood cell count, haemoglobin, platelet count, serum total protein, albumin, aspartate transaminase, alanine transaminase, estimated glomerular filtration rate, sodium, potassium, C-reactive protein, and brain natriuretic peptide. The accuracy, sensitivity, specificity, and area under the curve of the CNN model were 75.8%, 55.6%, 83.3% and 0.78 respectively. The CNN model could accurately predict the development of PICM using clinical findings before PMI. This model could be useful for screening patients at risk of developing PICM, ensuring timely upgrades to physiological pacing to avoid missing the optimal intervention window.
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