Annals of noninvasive electrocardiology : the official journal of the International Society for Holter and Noninvasive Electrocardiology, Inc
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Ann Noninvasive Electrocardiol · May 2021
Artificial intelligence for detecting electrolyte imbalance using electrocardiography.
The detection and monitoring of electrolyte imbalance is essential for appropriate management of many metabolic diseases; however, there is no tool that detects such imbalances reliably and noninvasively. In this study, we developed a deep learning model (DLM) using electrocardiography (ECG) for detecting electrolyte imbalance and validated its performance in a multicenter study. ⋯ The proposed DLM demonstrated high performance in detecting electrolyte imbalance. These results suggest that a DLM can be used for detecting and monitoring electrolyte imbalance using ECG on a daily basis.
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Ann Noninvasive Electrocardiol · Mar 2020
Case ReportsWellens' syndrome and finding of multiple coronary cameral fistulae: Is it time to discard this term?
Wellens' syndrome refers to electrocardiographic (ECG) abnormalities in the precordial T-wave segment, which are associated with critical stenosis of the proximal left anterior descending (LAD) coronary artery. According to medical literature, this ECG abnormality is of paramount importance because this syndrome represents a preinfarction stage of coronary artery disease; however, same ECG pattern can also be seen in other conditions. Coronary fistula occurs due to anomalous communications between a coronary artery and a cardiac chamber or other vessel in the vicinity of the heart. We report a case of multiple coronary artery fistulae to the left ventricle in a 74-year-old woman who had a 2-year history of intermittent atypical chest pain and exercise dyspnea with positive criteria mimicking Wellens' syndrome without coronary atherosclerosis.
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Ann Noninvasive Electrocardiol · Jul 2019
The value of syntax score to predict new-onset atrial fibrillation in patients with acute coronary syndrome.
New-onset atrial fibrillation (NOAF) has been associated with poor outcome in patients with acute coronary syndromes (ACS). Also, Syntax score (SS) is a scoring system that is derived from angiographic images and is associated with long-term mortality and major adverse cardiac events. In this study, we aimed to assess the relationship between SS and NOAF with known predictors of atrial fibrillation. ⋯ Syntax score may be helpful to identify for patients who would develop atrial fibrillation in the setting of ACS.
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Ann Noninvasive Electrocardiol · Mar 2019
Performance of an atrial fibrillation detection algorithm using continuous pulse wave monitoring.
Detecting asymptomatic and undiagnosed atrial fibrillation (AF) is increasingly important. Recently, we developed a wristwatch-based pulse wave monitor (PWM; Seiko Epson, Japan) capable of long-term recording, with an automatic diagnosis algorithm that uses frequency-based pulse wave analysis. The aim of this study was to evaluate the validity of continuous pulse wave monitoring for detection of AF. ⋯ Continuous pulse wave monitoring can provide accurate and dependable information to aid in AF diagnosis. A high validity in confirming freedom from AF was shown by a high NPV.
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Ann Noninvasive Electrocardiol · Jan 2019
Fragmented QRS as a predictor of in-hospital life-threatening arrhythmic complications in ST-elevation myocardial infarction patients.
Fragmented QRS (fQRS) complex is an electrocardiographic pattern that reflects the inhomogeneity of ventricular depolarization. The aims of this study were to determine the prognostic significance of fQRS for predicting in-hospital life-threatening arrhythmic complications in ST-elevation myocardial infarction (STEMI) patients, and to identify the most appropriate duration of cardiac rhythm monitoring in STEMI patients with fQRS. ⋯ The presence of fQRS complex on admission ECG was found to be an independent predictor of in-hospital life-threatening arrhythmic events in STEMI patients. Since the time to last life-threatening arrhythmic event from admission was longer in fQRS than in non-fQRS, cardiac rhythm monitoring longer than 24-48 hr may be needed in patients with fQRS.