Indian Pacing and Electrophysiology Journal最新文献

{"title":"Crazy accessory pathway- going round the bend!","authors":"Abhinav B. Anand ,&nbsp;Pratap J. Nathani ,&nbsp;Yash Y. Lokhandwala","doi":"10.1016/j.ipej.2024.04.001","DOIUrl":"10.1016/j.ipej.2024.04.001","url":null,"abstract":"<div><p>A 15-year-old boy with manifest preexcitation and recurrent palpitations had undergone an unsuccessful ablation procedure elsewhere and was subsequently referred to us. The ECG suggested a left free wall pathway but there was a pattern break in lead V2. This helped localise the accessory pathway to the summit region and achieve success.</p></div>","PeriodicalId":35900,"journal":{"name":"Indian Pacing and Electrophysiology Journal","volume":"24 3","pages":"Pages 165-170"},"PeriodicalIF":0.0,"publicationDate":"2024-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S097262922400041X/pdfft?md5=187a0b82e85ca4cf4302923ffd5d003b&pid=1-s2.0-S097262922400041X-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140763336","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"We promise to keep your candle burning","authors":"","doi":"10.1016/j.ipej.2024.05.003","DOIUrl":"10.1016/j.ipej.2024.05.003","url":null,"abstract":"","PeriodicalId":35900,"journal":{"name":"Indian Pacing and Electrophysiology Journal","volume":"24 3","pages":"Page 173"},"PeriodicalIF":0.0,"publicationDate":"2024-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S0972629224000548/pdfft?md5=0f7735f510245ffe7043801853f17abd&pid=1-s2.0-S0972629224000548-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141034709","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Cardiac resynchronization therapy with conduction system pacing in a long-term heart transplant recipient: A case report","authors":"Simone Taddeucci ,&nbsp;Carmine Marallo ,&nbsp;Giacomo Merello ,&nbsp;Amato Santoro","doi":"10.1016/j.ipej.2024.01.003","DOIUrl":"10.1016/j.ipej.2024.01.003","url":null,"abstract":"<div><p>We performed cardiac resynchronization therapy by means of conduction system pacing in a heart transplant patient suffering from heart failure with reduced ejection fraction and atrial fibrillation with conduction disturbance (bifascicular block and QRS &gt;160 ms). ECG monitoring showed paroxysmal atrioventricular block. Biventricular pacing was not feasible due to the absence of a suitable coronary sinus branch for pacing. His bundle pacing was performed, and an implantable cardioverter-defibrillator was implanted due to severe left ventricular dysfunction. Cardiac allograft vasculopathy was excluded. During follow-up, the patient's left ventricular function improved, and symptoms alleviated with a high percentage of ventricular stimulation.</p></div>","PeriodicalId":35900,"journal":{"name":"Indian Pacing and Electrophysiology Journal","volume":"24 3","pages":"Pages 147-149"},"PeriodicalIF":0.0,"publicationDate":"2024-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11143729/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139418237","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Heart failure and atrial fibrillation: To freeze or to burn, that's the question!","authors":"Nayani Makkar MD, DM,&nbsp;Narayanan Namboodiri MD, DM","doi":"10.1016/j.ipej.2024.05.002","DOIUrl":"10.1016/j.ipej.2024.05.002","url":null,"abstract":"","PeriodicalId":35900,"journal":{"name":"Indian Pacing and Electrophysiology Journal","volume":"24 3","pages":"Pages 130-132"},"PeriodicalIF":0.0,"publicationDate":"2024-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11143714/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140909357","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Epicardial ablation of ventricular tachycardia in ischemic cardiomyopathy: A review and local experience","authors":"Henri Roukoz ,&nbsp;Venkatakrishna Tholakanahalli","doi":"10.1016/j.ipej.2024.02.002","DOIUrl":"10.1016/j.ipej.2024.02.002","url":null,"abstract":"<div><p>Myocardial scar in ischemic cardiomyopathy is predominantly endocardial, however, between 5% and 15% of these patients have an arrhythmogenic epicardial substrate. Percutaneous epicardial ablation should be considered in patients with ICM and VT especially if they failed an endocardial ablation. Simultaneous epicardial and endocardial ablation of VT in ICM may reduce short- and medium-term VT recurrence compared with an endocardial only approach. Cardiac imaging could be used to help guide patient selection for a combined epi-endo approach. Complications related to epicardial access can happen in up to 7% of patients. Epicardial ablation in these patients should be referred to experienced tertiary centers. We review the literature and share interesting cases.</p></div>","PeriodicalId":35900,"journal":{"name":"Indian Pacing and Electrophysiology Journal","volume":"24 2","pages":"Pages 84-93"},"PeriodicalIF":0.0,"publicationDate":"2024-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S097262922400024X/pdfft?md5=0666b66e3b8957515291789b36010a55&pid=1-s2.0-S097262922400024X-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139716484","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"A cluster of inappropriate shocks in a pediatric S-ICD patient - how to troubleshoot?","authors":"Christina Menexi ,&nbsp;Mohamed ElRefai ,&nbsp;David Farwell ,&nbsp;Neil Srinivasan","doi":"10.1016/j.ipej.2023.12.006","DOIUrl":"10.1016/j.ipej.2023.12.006","url":null,"abstract":"<div><p>We present the case of a 16-year-old male pediatric patient diagnosed with hypertrophic cardiomyopathy (HCM, identified as having a high risk of sudden cardiac death (SCD), who underwent a successful subcutaneous implantable cardiac defibrillator (S-ICD) implantation as a primary prevention measure in 2018.</p><p>His past medical history included ADHD, Autism, and panic attacks. The patient experienced appropriate shocks that successfully terminated VF episodes. However, he also experienced multiple inappropriate shocks from the S-ICD, triggered by anxiety-induced tachycardia during panic episodes. Meticulous assessment of S-ICD tracings and electrocardiograms (ECGs) revealed the erroneous classification of sinus tachycardia as sustained ventricular tachycardia, leading to unwarranted therapeutic interventions.</p><p>Clinical intervention involved reprogramming of the S-ICD, emphasizing the pivotal role of personalized device configuration in pediatric cases where fine margins matter. While literature on S-ICD use in pediatric populations remains limited, emerging registries underscore the efficacy and safety of S-ICDs in preventing sudden cardiac death while reducing complications associated with intravascular leads. This case underscores the critical nature of customized device programming in pediatric patients, underscoring S-ICDs as a practical defibrillation alternative that addresses distinct concerns within this cohort of patients.</p></div>","PeriodicalId":35900,"journal":{"name":"Indian Pacing and Electrophysiology Journal","volume":"24 2","pages":"Pages 94-104"},"PeriodicalIF":0.0,"publicationDate":"2024-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S0972629223001328/pdfft?md5=dfe42eb737d733bb52c5ae434547f866&pid=1-s2.0-S0972629223001328-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139075268","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Symmetrical recovery time course between impedance and intramyocardial temperature after bipolar radiofrequency ablation; Role of impedance monitoring to estimate temperature rise","authors":"Takumi Kasai,&nbsp;Osamu Saitoh,&nbsp;Kyogo Fuse,&nbsp;Ayaka Oikawa,&nbsp;Hiroshi Furushima,&nbsp;Masaomi Chinushi","doi":"10.1016/j.ipej.2023.12.001","DOIUrl":"10.1016/j.ipej.2023.12.001","url":null,"abstract":"<div><h3>Introduction</h3><p>During radiofrequency (RF) ablation, impedance monitoring has been used to avoid steam-pop caused by excessive intramyocardial temperature (IMT) rise. However, it is uncertain why the impedance decline is related to steam-pop and whether the impedance decline is correlated to IMT.</p></div><div><h3>Methods</h3><p>Twenty-one bipolar ablations (40 W, 30-g contact, 120 s) were attempted for seven perfused porcine myocardium. Immediately after ablation, a temperature electrode was inserted into the mid-myocardial portion, and the recovery process of impedance and its correlation to IMT were assessed.</p></div><div><h3>Results</h3><p>Transmural lesion was created in all 21 applications but steam-pop occurred in 5/21 applications with large impedance decline. In the 16 applications without steam-pop, impedance and IMT soon after ablation were 97.2 ± 4.0 Ω and 66.1 ± 4.8 °C, respectively. Reasonably high linear correlation was demonstrated between the maximum IMT after ablation and impedance differences before and after ablation. Recovery processes of the decreased impedance and the elevated IMT fit well to each equation of the single exponential decay function and showed symmetric shapes with no statistical difference of time constant (100.1 ± 34.5 s in impedance vs. 108.7 ± 27.3 s in IMT) and half-time of recovery (144.5 ± 49.8 s in impedance vs. 156.9 ± 39.4 s in IMT). Recovered impedance after ablation (104.8 ± 3.9 Ω) was 5.1 ± 2.0 Ω smaller than that before ablation (109.9 ± 2.7 Ω), suggesting several factors other than IMT rise participate in impedance decline in RF ablation.</p></div><div><h3>Conclusions</h3><p>Recovery of impedance and IMT after ablation well correlated, which supports the usefulness of impedance monitoring for safe RF ablation.</p></div>","PeriodicalId":35900,"journal":{"name":"Indian Pacing and Electrophysiology Journal","volume":"24 2","pages":"Pages 68-74"},"PeriodicalIF":0.0,"publicationDate":"2024-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S0972629223001274/pdfft?md5=a4a4e482549ddb0e2294da66183588e5&pid=1-s2.0-S0972629223001274-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138804870","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Is left bundle branch pacing (LBBP) associated with better depolarization and repolarization kinetics than right ventricular mid septal pacing (RVSP)? - Comparison of frontal QRS -T angle in patients with LBBP, RVSP and normal ventricular conduction","authors":"Vadivelu Ramalingam ,&nbsp;Shunmugasundaram Ponnusamy ,&nbsp;Rizwan Suliankatchi Abdulkader ,&nbsp;Senthil Murugan ,&nbsp;Selvaganesh Mariyappan ,&nbsp;Jeyashree Kathiresan ,&nbsp;Mahesh Kumar ,&nbsp;Vijesh Anand","doi":"10.1016/j.ipej.2023.12.004","DOIUrl":"10.1016/j.ipej.2023.12.004","url":null,"abstract":"<div><h3>Aims</h3><p>To assess the frontal QRS- T angle (f QRS- T angle) in patients with left bundle branch pacing (LBBP) as compared to right ventricular mid septal pacing (RVSP) implanted for symptomatic high degree atrioventricular (AV) block and to compare with control subjects with normal ventricular conduction (CSNVC)</p></div><div><h3>Methods</h3><p>A total of one-fifty subjects were chosen (50 patients with LBBP, 50 patients with RVSP and 50 CSNVC). The indication for pacemaker implantation was symptomatic high degree AV block. Baseline clinical and electrocardiogram (ECG) parameters like QRS duration (QRSD), QRS axis and f QRS-T angle and Ejection Fraction (EF) were assessed. f QRS-T angle was measured as the difference between the computerised mean frontal QRS and T wave axes in the limb leads. If the difference between the QRS axis and T-wave axis exceeds 180°, then the resultant QRS-T angle would be calculated as 360° minus the absolute angle to obtain a value between 0° and 180°. Baseline, immediate post procedural and 6 month follow up (f/u) ECGs and EF were chosen for the analysis.</p></div><div><h3>Results</h3><p>Patients who underwent LBBP had significantly shorter paced QRSD than patients who had undergone RVSP (112 ± 12 ms vs 146 ± 13 ms; 95 % confidence interval (CI): 43, −31; <strong>p&lt;0.001</strong>). There was no significant difference in the QRSD before and after LBBP. The QRSD before and after pacing in RVSP was 111 ± 27 ms and 146 ± 13 ms; 95 % CI: 43, −28; <strong>p &lt; 0.001</strong>. The QRSD in control patients with NVC was 82.94 ± 9.59 ms.</p><p>RVSP was associated with wider f QRS-T angle when compared with LBBP (103 ± 53° vs 82 ± 43°; 95 % CI: 39, −1.0; <strong>p = 0.037</strong>). The baseline and immediate post procedure f QRS-T angle in LBBP was 70 ± 48° and 82 ± 43°; 95 % CI: 31, 5.3; p = 0.2. At 6 months f/u, the f QRS-T angle was 61 ± 43°; 95 % CI: 8.5, 35; <strong>p=0.002</strong>. The baseline and immediate post procedure f QRS-T angle in RVSP was 67 ± 51° and 103 ± 53°; 95 % CI: 54, −17; <strong>p &lt; 0.001</strong>. At 6 months f/u, the f QRS-T angle in RVSP group was 87 ± 58°; 95 % CI: 2.6, 29; <strong>p = 0.020</strong>. The f QRS T angle in control patients with NVC was 24 ± 16°. When subgroup analysis was done the difference in the f QRS-T angle was significant between RVSP and LBBP groups only in patients who had wide QRS escape.</p><p>The mean LVEF at 6-month follow-up in LBBP vs RVSP was 61 ± 3.7 % vs 57.1 ± 7.8 %; 95 % CI:1.48, 6.32, <strong><em>p = 0.002</em></strong>. In the RVSP group, three patients developed pacing induced cardiomyopathy (PIC) whereas no patients in the LBBP group developed PIC at 6-month follow-up; <strong>p=0.021</strong>. One patient with PIC had deterioration of functional status with new onset HF symptoms. The patient symptoms improved with medical therapy and needed no hospitalisation. The patient declined further interventions including upgradation to CRT or LBB","PeriodicalId":35900,"journal":{"name":"Indian Pacing and Electrophysiology Journal","volume":"24 2","pages":"Pages 75-83"},"PeriodicalIF":0.0,"publicationDate":"2024-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S0972629223001304/pdfft?md5=b86d5cc13c3cf15a9a879426d380532b&pid=1-s2.0-S0972629223001304-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139049455","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"The leadless pacemaker in ACHD – Cautiously optimistic","authors":"Jayant Kakarla,&nbsp;Krishnakumar Nair","doi":"10.1016/j.ipej.2024.03.002","DOIUrl":"10.1016/j.ipej.2024.03.002","url":null,"abstract":"","PeriodicalId":35900,"journal":{"name":"Indian Pacing and Electrophysiology Journal","volume":"24 2","pages":"Pages 63-67"},"PeriodicalIF":0.0,"publicationDate":"2024-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S0972629224000275/pdfft?md5=39e07ad69a103dfbb08795d182e0e80f&pid=1-s2.0-S0972629224000275-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140159234","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Open window mapping for redo accessory pathway ablation in Ebstein anomaly","authors":"Anindya Ghosh ,&nbsp;Akram KA. Mohamed ,&nbsp;Sabari Saravanan ,&nbsp;Ulhas M. Pandurangi","doi":"10.1016/j.ipej.2023.12.007","DOIUrl":"10.1016/j.ipej.2023.12.007","url":null,"abstract":"<div><p>Accessory pathway ablation in Ebstein anomaly can be significantly more challenging than in structurally normal hearts. An alternative to the conventional approach to mapping APs is to detect points with a high-density mapping catheter based on an automated detection algorithm using open window mapping. It detects the sharpest signal at each point with high-density mapping rather than relying on the origin of the local electrogram to localize the pathway and determine a site for successful ablation. We herein report the first case in literature of a redo-accessory pathway ablation in Ebstein anomaly using this technique.</p></div>","PeriodicalId":35900,"journal":{"name":"Indian Pacing and Electrophysiology Journal","volume":"24 2","pages":"Pages 105-110"},"PeriodicalIF":0.0,"publicationDate":"2024-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S097262922300133X/pdfft?md5=0e4ac2ce74638813aeba8083d8eff62d&pid=1-s2.0-S097262922300133X-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139098850","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}