Annals of Noninvasive Electrocardiology最新文献

{"title":"Ventricular Tachycardia Possibly Originated From the His-Purkinje System May Result From Aconitine Poisoning","authors":"Honglin Ni,&nbsp;Changlin Zhai,&nbsp;Haihua Pan","doi":"10.1111/anec.70040","DOIUrl":"10.1111/anec.70040","url":null,"abstract":"<p>Accurate diagnosis of wide QRS complex tachycardia (WCT) with the earliest ventricular origin potentially located in the His-Purkinje system, and exploration of its etiology are helpful for further diagnosis and treatment. This article finds through specific cases that one of the possible etiologies is aconitine poisoning.</p>","PeriodicalId":8074,"journal":{"name":"Annals of Noninvasive Electrocardiology","volume":"30 1","pages":""},"PeriodicalIF":1.1,"publicationDate":"2024-12-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11625383/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142790949","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Predictors of Myocardial Fibrosis Detected by CMR in Patients With Idiopathic PVCs","authors":"Ștefan Ailoaei,&nbsp;Laurențiu Șorodoc,&nbsp;Carina Ureche,&nbsp;Nicolae Sîtari,&nbsp;Gabriel Sandu,&nbsp;Alexandr Ceasovschih,&nbsp;Mihaela Grecu,&nbsp;Radu Andy Sascău,&nbsp;Cristian Stătescu","doi":"10.1111/anec.70039","DOIUrl":"https://doi.org/10.1111/anec.70039","url":null,"abstract":"<div>\u0000 \u0000 \u0000 <section>\u0000 \u0000 <h3> Background</h3>\u0000 \u0000 <p>Premature ventricular contractions (PVCs) are a frequent electrocardiographic finding in routine medical practice, and 16% of the patients with idiopathic PVCs may have underlying heart disease.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Objective</h3>\u0000 \u0000 <p>We analyzed the correlation between the morphology of the PVCs and the myocardial scarring identified by cardiac magnetic resonance (CMR), together with the impact of late gadolinium enhancement (LGE) on the need for ablation.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Methods</h3>\u0000 \u0000 <p>Ninety-four patients (median age 56 years) with frequent PVCs (&gt; 500 PVCs on 24 h) and a structurally normal heart were referred for comprehensive CMR. The patients were followed for 12 months. Patients were referred for ablation if they were symptomatic in the context of frequent PVCs.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Results</h3>\u0000 \u0000 <p>The prevalence of LGE identified by CMR was higher among males (OR 5.506 (2.092–14.49) <i>p</i> &lt; 0.05), with an age ≥ 50 years (OR 1.047 (1.015–1.08), <i>p</i> &lt; 0.05) and a higher PVC burden (OR 1.922 (1.723–1.976), <i>p</i> &lt; 0.05). Additionally, patients with PVCs with a LBBB inferior axis had four times higher risk of exhibiting LGE (OR 4.09 (1.584–10.565), <i>p</i> &lt; 0.05). In multivariate analysis, age (OR 1.059 (1.019–1.099), <i>p</i> &lt; 0.05) and a LBBB inferior axis (OR 4.605 (1.472–14.404), <i>p</i> &lt; 0.05) were independently associated with the presence of LGE.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Conclusion</h3>\u0000 \u0000 <p>Patients with PVCs and apparently, structurally normal heart present myocardial scarring identified by CMR in 71.23% of cases. PVCs with LBBB inferior axis pattern, age ≥ 50 years and male sex are associated with the presence of LGE on CMR. In multivariate analysis, age and LBBB inferior axis were independently correlated with the presence of LGE.</p>\u0000 </section>\u0000 </div>","PeriodicalId":8074,"journal":{"name":"Annals of Noninvasive Electrocardiology","volume":"29 6","pages":""},"PeriodicalIF":1.1,"publicationDate":"2024-11-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/anec.70039","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142708007","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Catheter Ablation of Ventricular Premature Contractions Originating From RVOT With Interruption of the Inferior Vena Cava—A Case Report","authors":"Liang Xiong,&nbsp;Jinzhu Hu,&nbsp;Dandan Wang,&nbsp;Juan Hua,&nbsp;Qi Chen","doi":"10.1111/anec.70034","DOIUrl":"10.1111/anec.70034","url":null,"abstract":"<p>Ventricular premature contractions (VPC) originating from right ventricular outflow tract is the most common type of ventricular arrhythmias in clinic settings, which can be effectively cured by catheter ablation. Interruption of the inferior vena cava (IVC) is a rare vascular anomaly resulting from aberrant development during embryogenesis. Herein, we reported a very rare case of VPC originating from right ventricular outflow tract (RVOT) with interruption of IVC, which was successfully ablated by transfemoral vein approach.</p>","PeriodicalId":8074,"journal":{"name":"Annals of Noninvasive Electrocardiology","volume":"29 6","pages":""},"PeriodicalIF":1.1,"publicationDate":"2024-11-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11580042/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142680602","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Association Between Different Insulin Resistance Indices and Heart Failure in US Adults With Diabetes Mellitus","authors":"Lirong Chen,&nbsp;Lin Qian,&nbsp;Yongming Liu","doi":"10.1111/anec.70035","DOIUrl":"10.1111/anec.70035","url":null,"abstract":"<div>\u0000 \u0000 \u0000 <section>\u0000 \u0000 <h3> Purpose</h3>\u0000 \u0000 <p>This study aims to scrutinize the association between various Insulin Resistance (IR) indices and heart failure (HF) risk in adult diabetics within the United States.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Methods</h3>\u0000 \u0000 <p>The National Health and Nutrition Examination Survey (NHANES) (2005–2018) dataset was used in this study. Weighted logistic regression analysis and restricted cubic spline were employed to ascertain the correlation between IR indices and the incidence of HF in diabetic patients. The predictive capability of the IR indices was evaluated using the Receiver Operating Characteristic curve.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Results</h3>\u0000 \u0000 <p>This study included a total of 2574 diabetic patients, out of which 209 (8.1%) were diagnosed with HF. After the adjustment of potential confounders, TyG-BMI (OR: 1.005, 95% CI: 1.002–1.009), TG/HDL-C (OR: 1.138, 95% CI: 1.024–1.265), and METS-IR index (OR: 1.035, 95% CI: 1.015–1.057) were significantly associated with HF risk. RCS curves revealed nonlinear dose–response relationship between TyG, TyG-BMI, TG/HDL-C, and the occurrence of HF in diabetic patients. Subgroup analyses showed that four IR indices were positively associated with the risk of HF in the elderly diabetic population. Unfortunately, all IR indices failed to improve the predictive performance of the underlying risk model for HF in diabetic patients.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Conclusion</h3>\u0000 \u0000 <p>Four IR markers may be important predictors of HF risk in diabetics.</p>\u0000 </section>\u0000 </div>","PeriodicalId":8074,"journal":{"name":"Annals of Noninvasive Electrocardiology","volume":"29 6","pages":""},"PeriodicalIF":1.1,"publicationDate":"2024-11-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/anec.70035","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142638060","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Coronary Angiographic Features of de Winter Syndrome: More Than Just Occlusion of the Left Anterior Descending Artery","authors":"Wenyi Tang,&nbsp;Junwei Xu,&nbsp;Fangyuan Cheng,&nbsp;Tianmin Liu,&nbsp;Zijian Lin,&nbsp;Bairong Chen,&nbsp;Jian Chen,&nbsp;Liyun Luo","doi":"10.1111/anec.70029","DOIUrl":"10.1111/anec.70029","url":null,"abstract":"<div>\u0000 \u0000 \u0000 <section>\u0000 \u0000 <h3> Background</h3>\u0000 \u0000 <p>The de Winter electrocardiogram (ECG) pattern is a rare presentation of ST-segment elevation myocardial infarction (STEMI) equivalent. The clinical profile of de Winter syndrome remains to be clarified.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Methods</h3>\u0000 \u0000 <p>Medical records of 1865 consecutive patients with acute myocardial infarction admitted from November 2018 to July 2023 were screened. Twelve patients (0.6%) with de Winter syndrome were included. STEMI patients whose culprit vessel was the left anterior descending artery (LAD) but without de Winter ECG pattern were selected as controls after 1:2 matching for age and sex.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Results</h3>\u0000 \u0000 <p>The de Winter syndrome patients were all male, aged 49.0 (46.3–52.5) years. The culprit lesion was the proximal LAD in seven patients (58.3%), the middle LAD in three (25%), the left main coronary artery in one (8.3%), and the ramus intermedius artery in the other. All of their culprit lesions had TIMI Thrombus Grade &lt; 4, Cohen-Rentrop Score ≤ 2, and residual stenosis ≥ 80% after pretreatment with thrombus aspiration or balloon predilatation. Intracoronary imaging data were available in four patients, showing severe atherosclerotic stenosis. Compared with STEMI, de Winter syndrome had a higher prevalence of prior recurrent angina (75.0% vs. 37.5%, <i>p</i> = 0.034), better coronary collateralization (Cohen-Rentrop Score: 1 vs. 0, <i>p</i> = 0.001), lower thrombus burden (TIMI grade: 1 vs. 2, <i>p</i> = 0.005) but more severe atherosclerotic stenosis in the culprit lesions (90% vs. 60%, <i>p</i> &lt; 0.001).</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Conclusions</h3>\u0000 \u0000 <p>The culprit lesions of de Winter syndrome have a low thrombus burden, severe atherosclerotic stenosis, and poor collateral circulation protection.</p>\u0000 </section>\u0000 </div>","PeriodicalId":8074,"journal":{"name":"Annals of Noninvasive Electrocardiology","volume":"29 6","pages":""},"PeriodicalIF":1.1,"publicationDate":"2024-11-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11551587/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142613673","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Intracardiac Echocardiography and Ablation of Atrial Fibrillation in Dextrocardia","authors":"Shuang Zhang,&nbsp;Mingxian Chen,&nbsp;Lin Hu,&nbsp;Hanze Tang,&nbsp;Liyi Liao,&nbsp;Xuping Li","doi":"10.1111/anec.70030","DOIUrl":"10.1111/anec.70030","url":null,"abstract":"<div>\u0000 \u0000 \u0000 <section>\u0000 \u0000 <h3> Background</h3>\u0000 \u0000 <p>Dextrocardia with atrial fibrillation (AF) complicates radiofrequency ablation treatment.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Methods</h3>\u0000 \u0000 <p>A case of successful AF ablation in dextrocardia, guided by intracardiac echocardiography (ICE) and the Carto 3 high-density mapping system, is reported.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Results</h3>\u0000 \u0000 <p>ICE-guided transseptal puncture and three-dimensional mapping facilitated successful pulmonary vein isolation (PVI). The patient had a good recovery with no recurrence.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Conclusion</h3>\u0000 \u0000 <p>ICE and Carto 3 system's high-density mapping aid in ablation for abnormal cardiac anatomy, reducing surgical complications.</p>\u0000 </section>\u0000 </div>","PeriodicalId":8074,"journal":{"name":"Annals of Noninvasive Electrocardiology","volume":"29 6","pages":""},"PeriodicalIF":1.1,"publicationDate":"2024-11-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/anec.70030","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142581295","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Introducing a Novel Pacemaker-Mediated Arrhythmia: The Pseudo-RNRVAS Arising From Atrial Capture Challenges.","authors":"Asli Inci Atar, Ilyas Atar","doi":"10.1111/anec.70033","DOIUrl":"10.1111/anec.70033","url":null,"abstract":"<p><strong>Background: </strong>This study aimed to define and explain a novel form of pacemaker-mediated arrhythmia which is initiated and sustained by atrial capture loss coinciding with ventriculoatrial (VA) conduction within the postventricular atrial refractory period (PVARP). Unlike repetitive nonreentrant VA synchrony (RNRVAS), in the pseudo-RNRVAS, the atrium is not stimulated due to pacing below the threshold level, rather than because of refractory atrial myocardium.</p><p><strong>Objective: </strong>The objective was to elucidate the mechanisms of this pseudo-RNRVAS, identify predisposing factors, and propose preventive strategies.</p><p><strong>Methods: </strong>Twenty-one patients with dual-chamber cardiac implantable electronic devices (CIEDs) exhibiting stable VA conduction within the PVARP were included. Pseudo-RNRVAS were induced by altering atrial amplitude and lower rate interval while keeping other CIED parameters constant.</p><p><strong>Results: </strong>Pseudo-RNRVAS developed after atrial capture loss in 20 out of 21 patients. Notably, 11 patients experienced pseudo-RNRVAS at heart rates ≤ 70 bpm, and 7 patients at AV delay ≤ 150 ms. The condition initiated immediately following the first ventricular pace beat after atrial capture loss in 18 patients. In six cases, pseudo-RNRVAS terminated intermittently and then restarted; in 14 cases, it did not resolve.</p><p><strong>Conclusion: </strong>Pseudo-RNRVAS can occur even at low heart rates and without specific predisposing factors seen in RNRVAS. Conditions that increase atrial pacing probability and threshold raise the likelihood of pseudo-RNRVAS. Early postimplantation may pose a heightened risk, correlating with pacemaker syndrome and susceptibility to heart failure.</p>","PeriodicalId":8074,"journal":{"name":"Annals of Noninvasive Electrocardiology","volume":"29 6","pages":"e70033"},"PeriodicalIF":1.1,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/anec.70033","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142646802","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Reassess Hospital Costs and Mortality Between Myocardial Infarction With and Without ST-Segment Elevation in a Modern Context","authors":"Honglan Ma,&nbsp;Sen Wu,&nbsp;Jinlong Cao,&nbsp;Tianzhi Cai","doi":"10.1111/anec.70027","DOIUrl":"10.1111/anec.70027","url":null,"abstract":"<div>\u0000 \u0000 \u0000 <section>\u0000 \u0000 <h3> Background</h3>\u0000 \u0000 <p>Patients with ST-segment elevation myocardial infarction (STEMI) may have higher hospitalization costs and poorer prognosis than non-ST-segment elevation myocardial infarction (NSTEMI).</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Methods</h3>\u0000 \u0000 <p>A single-center retrospective study was conducted on 758 STEMI patients and 386 NSTEMI patients from January 1, 2020 to May 30, 2023 aimed to investigate the differences in cost and mortality.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Results</h3>\u0000 \u0000 <p>STEMI patients had higher maximal troponin I (15,222.5 (27.18, 40,000.00) vs. 2731.5 (10.73, 27,857.25), <i>p</i> &lt; 0.001) and lower left ventricular ejection fraction (LVEF) (56% (53%, 59%) vs. 57% (55%, 59%), <i>p</i> &lt; 0.001) compared to NSTEMI patients. The clinical symptoms were mainly persistent or interrupted chest pain/distress in either STEMI or NSTEMI patients. STEMI patients had a significantly higher risk of combined hypotension than NSTEMI patients (8.97% vs. 3.89%, <i>p =</i> 0.002), and IABP was much more frequently used in the STEMI group with a statistical difference (2.90% vs. 0.52%, <i>p =</i> 0.015). STEMI patients have statistically higher hospitalization costs (RMB, ¥) (31,667 (25,337.79, 39,790) vs. 30,506.91 (21,405.96, 40,233.75), <i>p = 0.006</i>) and longer hospitalization days (10 (8, 11) vs. 9 (8, 11), <i>p = 0.001</i>) compared to NSTEMI patients. Although in-hospital mortality was higher in STEMI patients, the difference was not statistically significant (3.56% vs. 2.07%, <i>p = 0.167</i>). Multivariable logistic regression was performed and found that systolic blood pressure and NT-proBNP were risk factors for patient death (OR ≥ 1).</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Conclusion</h3>\u0000 \u0000 <p>STEMI patients are more likely comorbid cardiogenic shock, heart failure complications with higher hospitalization costs and longer hospitalization days. And relatively more use of acute mechanical circulatory support devices such as IABP.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Trial Registration</h3>\u0000 \u0000 <p>ChiCTR2300077885</p>\u0000 </section>\u0000 </div>","PeriodicalId":8074,"journal":{"name":"Annals of Noninvasive Electrocardiology","volume":"29 6","pages":""},"PeriodicalIF":1.1,"publicationDate":"2024-10-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11512201/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142493506","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Predicting Spontaneous Termination of Atrial Fibrillation Based on Analysis of Standard Electrocardiograms: A Systematic Review","authors":"Brandon Wadforth,&nbsp;Jing Soong Goh,&nbsp;Kathryn Tiver,&nbsp;Sobhan Salari Shahrbabaki,&nbsp;Ivaylo Tonchev,&nbsp;Dhani Dharmaprani,&nbsp;Anand N. Ganesan","doi":"10.1111/anec.70025","DOIUrl":"10.1111/anec.70025","url":null,"abstract":"<div>\u0000 \u0000 \u0000 <section>\u0000 \u0000 <h3> Background</h3>\u0000 \u0000 <p>Forward prediction of atrial fibrillation (AF) termination is a challenging technical problem of increasing significance due to rising AF presentations to emergency departments worldwide. The ability to non-invasively predict which AF episodes will terminate has important implications in terms of clinical decision-making surrounding treatment and admission, with subsequent impacts on hospital capacity and the economic cost of AF hospitalizations.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Methods and Results</h3>\u0000 \u0000 <p>MEDLINE, EMCare, CINAHL, CENTRAL, and SCOPUS were searched on 29 July 2023 for articles where an attempt to predict AF termination was made using standard surface ECG recordings. The final review included 35 articles. Signal processing techniques fit into three broad categories including machine learning (<i>n</i> = 14), entropy analysis (<i>n</i> = 12), and time–frequency/frequency analysis (<i>n</i> = 9). Retrospectively processed ECG data was used in all studies with no prospective validation studies. Most studies (<i>n</i> = 33) utilized the same ECG database, which included recordings that either terminated within 1 min or continued for over 1 h. There was no significant difference in accuracy between groups (H(2) = 0.058, <i>p</i>-value = 0.971). Only one study assessed recordings earlier than several minutes preceding termination, achieving 92% accuracy using the central 10 s of paroxysmal episodes lasting up to 174.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Conclusions</h3>\u0000 \u0000 <p>No studies attempted to forward predict AF termination in real-time, representing an opportunity for novel prospective validation studies. Multiple signal processing techniques have proven accurate in predicting AF termination utilizing ECG recordings sourced from a database retrospectively.</p>\u0000 </section>\u0000 </div>","PeriodicalId":8074,"journal":{"name":"Annals of Noninvasive Electrocardiology","volume":"29 6","pages":""},"PeriodicalIF":1.1,"publicationDate":"2024-10-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11503732/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142493505","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Biotronik Implantable Cardioverter Defibrillator for Measurement of Intrathoracic Impedance: A Report of Two Cases","authors":"Xuqing Ying,&nbsp;Xinyue Yu,&nbsp;Weixun Cai,&nbsp;Xiaomin Chen,&nbsp;Lihua Wang,&nbsp;Qingcheng Wang,&nbsp;Jie Pang","doi":"10.1111/anec.70015","DOIUrl":"10.1111/anec.70015","url":null,"abstract":"<div>\u0000 \u0000 \u0000 <section>\u0000 \u0000 <h3> Objectives</h3>\u0000 \u0000 <p>Two patients were received ICDs (Biotronic Iforia7 VR-TDX). Holter analysis revealed pacing spikes, which occurred regularly at 100 ms intervals following QRS complexes, with consecutive 1024 test pulses at hourly intervals during a specific time, and the VP was 0%.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Methods</h3>\u0000 \u0000 <p>By analyzing the dynamic electrocardiogram and consulting relevant literature, it was found that this is a feature of the ICD that measures thoracic impedance.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Results</h3>\u0000 \u0000 <p>This phenomenon is a special function for the purpose of transthoracic impedance measurement, which can monitor the heart failure.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Conclusions</h3>\u0000 \u0000 <p>This phenomenon should not be regarded as an interference signal or an abnormal sign of pacemaker malfunction.</p>\u0000 </section>\u0000 </div>","PeriodicalId":8074,"journal":{"name":"Annals of Noninvasive Electrocardiology","volume":"29 6","pages":""},"PeriodicalIF":1.1,"publicationDate":"2024-10-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11503685/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142493503","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}