scholarly journals Detection of the left accessory pathway with synthesized 18-lead electrocardiography in WPW syndrome

2018 ◽  
Vol 18 (6) ◽  
Author(s):  
Keiji Matsunaga ◽  
Takahisa Noma ◽  
Yuichi Miyake ◽  
Makoto Ishizawa ◽  
Teppei Tsuji ◽  
...  
Keyword(s):  
Accessory Pathway ◽  
Wpw Syndrome ◽  
Left Accessory Pathway

scholarly journals Accessory pathway analysis using a multimodal deep learning model

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Makoto Nishimori ◽  
Kunihiko Kiuchi ◽  
Kunihiro Nishimura ◽  
Kengo Kusano ◽  
Akihiro Yoshida ◽  
...  
Keyword(s):  
Deep Learning ◽  
Electrophysiological Study ◽  
Accessory Pathway ◽  
Learning Model ◽  
X Rays ◽  
X Ray ◽  
Wpw Syndrome ◽  
Chest X Ray ◽  
Deep Learning Model ◽  
Ecg Data

AbstractCardiac accessory pathways (APs) in Wolff–Parkinson–White (WPW) syndrome are conventionally diagnosed with decision tree algorithms; however, there are problems with clinical usage. We assessed the efficacy of the artificial intelligence model using electrocardiography (ECG) and chest X-rays to identify the location of APs. We retrospectively used ECG and chest X-rays to analyse 206 patients with WPW syndrome. Each AP location was defined by an electrophysiological study and divided into four classifications. We developed a deep learning model to classify AP locations and compared the accuracy with that of conventional algorithms. Moreover, 1519 chest X-ray samples from other datasets were used for prior learning, and the combined chest X-ray image and ECG data were put into the previous model to evaluate whether the accuracy improved. The convolutional neural network (CNN) model using ECG data was significantly more accurate than the conventional tree algorithm. In the multimodal model, which implemented input from the combined ECG and chest X-ray data, the accuracy was significantly improved. Deep learning with a combination of ECG and chest X-ray data could effectively identify the AP location, which may be a novel deep learning model for a multimodal model.

Detection of Accessory Pathway in Patients with WPW Syndrome by Means of The Isomagnetic Map and MRI

1989 ◽  
pp. 373-376 ◽  
Author(s):  
Masahiro Nomura ◽  
Yutaka Nakaya ◽  
Katsusuke Watanebe ◽  
Mariko Katayama ◽  
Akemi Takeuchi ◽  
...  
Keyword(s):  
Accessory Pathway ◽  
Wpw Syndrome

scholarly journals Pre-excitation pattern associated with accessory pathway related tachycardia: Case report

2010 ◽  
Vol 138 (9-10) ◽  
pp. 639-642
Author(s):  
Mirko Burazor ◽  
Ivana Burazor ◽  
Nebojsa Mujovic
Keyword(s):  
Ventricular Tachycardia ◽  
Diagnostic Tests ◽  
Accessory Pathway ◽  
Accurate Assessment ◽  
Wpw Syndrome ◽  
Conduction Pathway ◽  
Difficulty Breathing ◽  
Life Threatening ◽  
Mapping Techniques ◽  
Excitation Pattern

Introduction. Pre-excitation is based on an accessory conduction pathway between the atrium and ventricle. The term Wolff- Parkinson-White (WPW) syndrome is used for patients with the pre-excitation/WPW pattern associated with AP-related tachycardia. Case Outline. We present a 52-year-old man with severe palpitation, fatigue, lightheadedness and difficulty breathing. The initial ECG showed tachyarrhythmia with heart rate between 240 and 300/min. He was treated with antiarrhythmics (Digitalis, Verapamil, Lidocaine) with no response. Then, the patient was treated with electrical cardioversion and was referred to our Clinic for further evaluation with the diagnosis: ?Ventricular tachycardia?. During in-hospital stay, the previously undiagnosed WPW pattern had been seen. Additional diagnostic tests confirmed permanent pre-excitacion pattern (ECG Holter recording, exercises test). The patient was referred to an electrophysiologist for further evaluation. Mapping techniques provided an accurate assessment of the position of the accessory pathway which was left lateral. The elimination of the accessory pathway by radiofrequent catheter ablation is highly effective in termination and elimination of tacchyarrhythmias. Conclusion. Symptomatic, life-threatening arrhythmia, first considered as ventricular tachycardia, reflected atrial fibrillation with ventricular pre-excitation over an accessory pathway in a patient with previously undiagnosed WPW syndrome.

Transradial catheter ablation of left accessory pathway in patient with severe chest deformity

2011 ◽  
Vol 44 (4) ◽  
pp. 467-469 ◽  
Author(s):  
Gouhua Han ◽  
Jianqiang Hu ◽  
Huanming Zhu ◽  
Xinjie Ma ◽  
Changlin Weng ◽  
...  
Keyword(s):  
Catheter Ablation ◽  
Accessory Pathway ◽  
Chest Deformity ◽  
Left Accessory Pathway

WOLFF-PARKINSON-WHITE SYNDROME

2020 ◽  
pp. 34-38
Author(s):  
Pedada Syam Prashanth Pedada Syam Prashanth ◽  
Allamsetty Jyotsna Allamsetty Jyotsna ◽  
Modukuri.Sravya Modukuri.Sravya ◽  
Swathi Priya.Vana Swathi Priya.Vana ◽  
Tushara Bammidi Tushara Bammidi ◽  
...  
Keyword(s):  
Accessory Pathway ◽  
Young Patients ◽  
Av Node ◽  
Bundle Branch Block ◽  
Wpw Syndrome ◽  
Pr Interval ◽  
Cardiac Ventricles ◽  
Seminal Article ◽  
Electrical Connections ◽  
Wolff Parkinson White Syndrome

WPW syndrome is a congenital heart disease that is characterized by the presence of abnormal electrical connections between the atria and ventricles of the heart. In 1930, Louis Wolff, Sir John Parkinson, and Paul Dudley white published a seminal article describing the 11 young patients who suffered from attacks of tachycardia associated with an electrocardiographic pattern of ‘bundle branch block’ with a short PR interval. So from there onwards, it is called Wolff Parkinson white [WPW] syndrome. The normal conduction of the AV node occurs slowly than the accessory pathway conduction. Preexcitation is a process that the cardiac ventricles are activated earlier than the impulse of the AV node which leads to the shorter PR interval and formation of a delta wave. The supraventricular tachycardia associated with WPW syndrome is called AV reentrant or reciprocating tachycardia (AVRT).WPW syndrome is that there is an accessory pathway between the atrium and ventricles which cause rapid heartbeat or tachycardia.

scholarly journals ID: 1081 Development and validation of surface electrocardiogram in the septal accessory pathway localization in typical Wolff-Parkinson-White syndrome

2017 ◽  
Vol 4 (S) ◽  
pp. 167
Author(s):  
Si Dung Chu ◽  
Khanh Quoc Pham ◽  
Dong Van Tran
Keyword(s):  
Accessory Pathway ◽  
High Sensitivity ◽  
High Accuracy ◽  
Qrs Complex ◽  
Delta Wave ◽  
Wpw Syndrome ◽  
Development And Validation ◽  
Electrocardiogram Ecg ◽  
Surface Electrocardiogram ◽  
Wolff Parkinson White Syndrome

Objectives: This study was designed characteristics of surface electrocardiogram (ECG) for the localization of septal accessory pathway (AP) in the typical Wolff-Parkinson-White (WPW) syndrome to develop a new algorithm ECG for the septal AP localization, and to test the accuracy of the algorithm prospectively.  Subject and Methods: We studied 106 patients, in 65 patients with typical WPW syndrome have a single anterograde with the localization of Aps identified by successful radiofrequency catheter ablation (RCFA) to develop a new ECG algorithm for the septal AP localization. Then this algorithm was tested propectively in 41 patients were compared with the location of AP’s successful ablation by RCFA (gold standard).  Results: We found that the 12 lead ECG parameters in 65 patients with typical WPW syndrome such as the transition of the QRS complex, delta wave polarity in V1 lead, delta wave polarity in at least 2/3 inferior leads and morphology QRS was “QRS pattern’’ in inferior leads in diagnosis for the localization of septal APs with hight accuracy predicted from 83.3% to 100%, and for development of a new ECG algorithm. Then the following 41 patients were prospectively evaluated by the new derived algorithm for the septal pathways with high sensitivity and specificity from 84.6% to 100%.  Conclusion: 12-lead ECG parameters in typical WPW syndrome closely related to the septal AP localization, in order to develop the new ECG algorithm by parameters as above; and can be used to a new septal ECG algorithm in predicted the location APs with high accuracy predicted

scholarly journals Development and evaluation of surface electrocardiogram in the septal accessory pathway localization in typical Wolff-Parkinson-White syndrome

2018 ◽  
Vol 5 (9) ◽  
pp. 2680-2687
Author(s):  
Si Dung Chu ◽  
Khanh Quoc Pham ◽  
Dong Van Tran
Keyword(s):  
Accessory Pathway ◽  
High Sensitivity ◽  
High Accuracy ◽  
Strongly Correlated ◽  
Qrs Complex ◽  
Delta Wave ◽  
Wpw Syndrome ◽  
Electrocardiogram Ecg ◽  
Surface Electrocardiogram ◽  
Wolff Parkinson White Syndrome

Objectives: This study was designed to characterize the surface electrocardiogram (ECG) of the typical Wolff-Parkinson-White (WPW) syndrome to develop a new algorithm ECG to localize the septal accessory pathways (APs) and to prospectively test the accuracy of the algorithm. Methods: We studied 106 patients, in which 65 patients with typical WPW syndrome who had a single antero-grade with the localization of APs identified by successful radiofrequency catheter ablation (RFCA) to develop a new ECG algorithm for the septal AP localization. Then, this algorithm was tested prospectively in 41 patients to compare to the localization of APs by successful ablation by RFCA (gold standard). Results: In 65 patients with typical WPW syndrome, we found that the 12-lead ECG parameters such as the transition of the QRS complex, delta wave polarity in V1 lead, delta wave polarity in at least 2/3 inferior leads and ``QRS pattern'' in inferior leads can predict the localization of septal APs with the accuracy ranging from 83.3% to 100%. Then, 41 patients were prospectively evaluated by the new derived algorithm to localize the septal APs with high sensitivity and specificity from 84.6% to 100%. Conclusion: 12-lead ECG parameters in typical WPW syndrome are strongly correlated to the septal AP localization, which can be used to develop a new ECG algorithm to localize septal APs with high accuracy.

Diagnosis and management of arrhythmias associated with Wolff-Parkinson-White syndrome

1994 ◽  
Vol 14 (3) ◽  
pp. 30-39 ◽  
Author(s):  
MB Conover
Keyword(s):  
Atrial Fibrillation ◽  
Emergency Treatment ◽  
Accessory Pathway ◽  
P Wave ◽  
Av Node ◽  
Wpw Syndrome ◽  
Reentry Tachycardia ◽  
Fast Pathway ◽  
Wolff Parkinson White Syndrome

Because of the emergency nature of the arrhythmias associated with WPW syndrome, nurses are often called upon for diagnosis and intervention in critical settings. In such cases the nurse's understanding of mechanisms, ECG recognition, and emergency treatment guarantees the patient the best possible outcome, not only in the critical setting, but in the long term as well. The most common arrhythmias of WPW syndrome are PSVT and atrial fibrillation. In PSVT a differential diagnosis is made on the ECG between (1) CMT using the AV node anterogradely and an accessory pathway retrogradely and (2) AV nodal reentry tachycardia. Helpful clues are location of the P' wave, presence of QRS alternans, the initiating P'R interval, and presence of aberrancy. Atrial fibrillation with an accessory pathway has the morphology of VT but is differentiated because the rhythm is irregular and the rate is more than 200 beats per minute. Emergency treatment consists of blocking the accessory pathway with procainamide. Emergency treatment for both types of PSVT consists of breaking the reentry circuit at the AV node (eg, vagal maneuver, adenosine, or verapamil). Procainamide can also be used to block the retrograde fast pathway in the AV node and to terminate CMT by blocking the accessory pathway. Symptomatic patients with accessory pathways are referred for evaluation and possible radio-frequency ablation.

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