Anindya Ghosh , Akram KA. Mohamed , Sabari Saravanan , Ulhas M. Pandurangi
{"title":"Open window mapping for redo accessory pathway ablation in Ebstein anomaly","authors":"Anindya Ghosh , Akram KA. Mohamed , Sabari Saravanan , 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}
{"title":"Retrievable leadless pacemakers (Aveir VR) may be beneficial in adult patients with congenital heart disease","authors":"Zainab Syyeda Rahmat , Daniel Cortez","doi":"10.1016/j.ipej.2024.01.008","DOIUrl":"10.1016/j.ipej.2024.01.008","url":null,"abstract":"<div><h3>Introduction</h3><p>Congenital heart disease may present in up to 1.6 % of newborns. Given high burden of pacing need in adult patients with repaired congenital heart disease and availability of different pacing options, more information on outcomes of newer pacemaker types are needed. Retrievable leadless pacemaker implants in adult congenital patients have not been described.</p></div><div><h3>Methods</h3><p>Retrospective review of three Aveir (Abbott) retrievable leadless pacemaker implants were reviewed at the UC Davis Medical Center. All patients underwent implant via femoral access.</p></div><div><h3>Results</h3><p>All patients had one deployment only, after mapping prior. No complications occurred. Implant thresholds were 0.5 V (V) @0.2msilliseconds (ms) for patients 1 and 2 and 1 V @0.4 ms for patient 3. With impedances between 500 and 1290 Ω. Sensing was 5.5–8 mV (mV). Follow-up occurred up to one year (for two patients) with similar values overall. The predicted longevities of each device were between 22.6 and >25 years.</p></div><div><h3>Conclusion</h3><p>Safety and short-mid-term parameters of retrievable leadless pacemaker implantation is reported in three patients with adult congenital heart disease.</p></div>","PeriodicalId":35900,"journal":{"name":"Indian Pacing and Electrophysiology Journal","volume":"24 2","pages":"Pages 57-62"},"PeriodicalIF":0.0,"publicationDate":"2024-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S0972629224000081/pdfft?md5=0a9cc4994b75c2f452a2747ee0f2676f&pid=1-s2.0-S0972629224000081-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139565077","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":"An unusual ECG lead reversal","authors":"Suresh Kumar Sukumaran, Raja J. Selvaraj","doi":"10.1016/j.ipej.2023.11.007","DOIUrl":"10.1016/j.ipej.2023.11.007","url":null,"abstract":"<div><p>Lead reversals are a common cause of electrocardiographic abnormality, which can lead to a false diagnosis like chamber enlargement, myocardial ischemia or infarction. Isolated limb lead reversals and chest lead reversals are common in clinical practice. This article reports a rare case where multiple limb and chest leads were reversed due to the reversal of cables leading to a false diagnosis of myocardial ischemia.</p></div>","PeriodicalId":35900,"journal":{"name":"Indian Pacing and Electrophysiology Journal","volume":"24 2","pages":"Pages 119-121"},"PeriodicalIF":0.0,"publicationDate":"2024-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S0972629224000251/pdfft?md5=b59802e6c93cce16313404fc601c774a&pid=1-s2.0-S0972629224000251-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139736303","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}
Soham Dasgupta , Kevin Thomas , Christopher Johnsrude
{"title":"Subcutaneous cardioverter-defibrillator implantation in an adult with congenital heart disease and left infra-mammary pacemaker","authors":"Soham Dasgupta , Kevin Thomas , Christopher Johnsrude","doi":"10.1016/j.ipej.2023.12.008","DOIUrl":"10.1016/j.ipej.2023.12.008","url":null,"abstract":"<div><p>The approach/type of an implantable cardioverter defibrillator (ICD) is determined by the underlying cardiac anatomy, venous access, and pre-existing cardiac implantable electronic devices. We describe a case of subcutaneous ICD implantation in an adult with congenital heart disease (CHD) with a pre-existing inframammary transvenous pacemaker. This was preferred over adding a defibrillator coil to existing pacing leads, extraction/replacement of pacing system, or a sternotomy/epicardial ICD placement. The procedure was accomplished uneventfully with successful defibrillation threshold testing. Innovative approaches are required to manage arrhythmias in adults with CHD, with shared decision making playing a critical role.</p></div>","PeriodicalId":35900,"journal":{"name":"Indian Pacing and Electrophysiology Journal","volume":"24 2","pages":"Pages 111-113"},"PeriodicalIF":0.0,"publicationDate":"2024-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S0972629223001341/pdfft?md5=fabf2c1c7b363b65a7cb03a4ccc5fc1d&pid=1-s2.0-S0972629223001341-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139088877","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}
Sarah Whittaker-Axon , Vivienne Ezzat , Martin Lowe , Vinit Sawhney
{"title":"Coherent mapping to aid interpretation of multiple intraatrial reentrant tachycardias in an atrio-pulmonary Fontan patient","authors":"Sarah Whittaker-Axon , Vivienne Ezzat , Martin Lowe , Vinit Sawhney","doi":"10.1016/j.ipej.2024.01.002","DOIUrl":"10.1016/j.ipej.2024.01.002","url":null,"abstract":"","PeriodicalId":35900,"journal":{"name":"Indian Pacing and Electrophysiology Journal","volume":"24 2","pages":"Pages 114-118"},"PeriodicalIF":0.0,"publicationDate":"2024-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S0972629224000020/pdfft?md5=e76422137064487e2d6d16757feabe30&pid=1-s2.0-S0972629224000020-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139425632","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":"Clinical profile and electrophysiological characteristics of atypical atrioventricular nodal reentrant tachycardia: A decade's experience","authors":"Ashesh Halder , Soorampally Vijay , Yogesh Kolamkar , Yagnik Mukund Kumble , Yash Lokhandwala","doi":"10.1016/j.ipej.2023.10.004","DOIUrl":"10.1016/j.ipej.2023.10.004","url":null,"abstract":"<div><h3>Objective</h3><p>To assess the clinical features and inducibility characteristics of atypical atrioventricular nodal reentrant tachycardia (AVNRT) and compare it with typical AVNRT.</p></div><div><h3>Background</h3><p>AVNRT is the commonest form of paroxysmal supraventricular tachycardia. The mechanism of AVNRT is very varied. Several classification systems evolved with better understanding but a simplified approach of classification into typical and atypical AVNRT is justifiable and clinically more relevant. In our study, we have assessed the epidemiological profile of atypical AVNRT in a single institute over 10 years and analysed pertinent electrophysiological characteristics.</p></div><div><h3>Method</h3><p>In this retrospective observational single center study we analysed data of all AVNRT cases from January 2011 to June 2021. In our study we classified atypical AVNRT and typical AVNRT based on the HA interval; HA≤70 ms in the His bundle region during tachycardia was considered as typical AVNRT. Other parameters were also analysed during tachycardia, such as: induction by atrial or ventricular pacing, AH/HA ratio, tachycardia cycle length and site of the earliest atrial activation. The demographic profile of the patients were also compared between 2 groups.</p></div><div><h3>Results</h3><p>Atypical AVNRT was found in 75/1431 patients (5.2%) of all cases of AVNRT. The age of patients with atypical AVNRT was 52.4 ± 15.2 years (range 9–82 years) while that for typical AVNRT it was 48.2 ± 15.7 years (2–89 years), p = 0.023. There was no gender difference. Atypical AVNRT was induced by only ventricular extrastimuli (VES) in 17/75 (22.6%) while in typical AVNRT this was seen in only 12/1356 patients (0.9%, p < 0.001). Induction of atypical AVNRT was seen by both atrial extrastimuli (AES) and VES in 17/75 patients (22.6%) while in typical AVNRT this was seen in 64/1356 patients (4.8%, p < 0.001). Atypical AVNRT was induced by only AES in 40/75 patients (53.3%) while in typical AVNRT this was seen in 1280/1356 patients (94.3%, p < 0.001). An AH >200 ms during tachycardia was seen in all patients with typical AVNRT and in only 31/75 patients (41.3%) of atypical AVNRT (p < 0.00001). An interesting finding in atypical AVNRT was the earliest atrial activation at the His bundle region in 10/75 (13.3%) patients.</p></div><div><h3>Conclusion</h3><p>Atypical AVNRT prevalence depends on the way it is classified; this was 5.2% of all AVNRT cases in our study. Typical AVNRT was seen more frequently in comparatively younger age group and was more often induced by AES. Atypical AVNRT was much more commonly induced by only VES compared to typical AVNRT. It was not so unusual in atypical AVNRT to find the earliest atrial activation in the His bundle region.</p></div>","PeriodicalId":35900,"journal":{"name":"Indian Pacing and Electrophysiology Journal","volume":"24 1","pages":"Pages 25-29"},"PeriodicalIF":0.0,"publicationDate":"2024-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S0972629223001043/pdfft?md5=153165681bfc23726657925e729f26d7&pid=1-s2.0-S0972629223001043-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41239462","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":"Burning bridges: Ablation of a Bi-atrial macro-reentrant tachycardia conducting via Bachman's bundle and the Marshall bundle complex","authors":"Tobias Ahnert , Ankit Maheshwari","doi":"10.1016/j.ipej.2023.11.001","DOIUrl":"10.1016/j.ipej.2023.11.001","url":null,"abstract":"","PeriodicalId":35900,"journal":{"name":"Indian Pacing and Electrophysiology Journal","volume":"24 1","pages":"Pages 40-41"},"PeriodicalIF":0.0,"publicationDate":"2024-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S0972629223001067/pdfft?md5=731ab7dcc73235a00a72557a08c8e48f&pid=1-s2.0-S0972629223001067-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136399581","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}
Lisa WM. Leung, Banu Evranos, Hanney Gonna, Idris Harding, Giulia Domenichini, Mark M. Gallagher
{"title":"Multi-catheter cryotherapy for the treatment of resistant accessory pathways","authors":"Lisa WM. Leung, Banu Evranos, Hanney Gonna, Idris Harding, Giulia Domenichini, Mark M. Gallagher","doi":"10.1016/j.ipej.2023.11.002","DOIUrl":"10.1016/j.ipej.2023.11.002","url":null,"abstract":"<div><h3>Objective</h3><p>To investigate the utility of simultaneous multi-catheter cryotherapy for the treatment of APs that were previously resistant to standard radiofrequency (RF) catheter ablation.</p></div><div><h3>Background</h3><p>Catheter ablation is established in the treatment of accessory pathways (AP), with high rates of permanent procedural success with a single attempt. However, there are still instances of acute procedural failure and AP recurrences with standard RF and cryotherapy methods.</p></div><div><h3>Methods</h3><p>Seven consecutive cases of pre-excitation syndromes with prior failed RF catheter ablation had the novel treatment. Cryotherapy was delivered using two 8 mm tip focal cryoablation catheters (Freezor® Max, Medtronic, Minneapolis, Minnesota, USA).</p></div><div><h3>Results</h3><p>Accessory pathway localisation was septal in 5 cases, left posterolateral in 1, right lateral in 1. In all cases, ablation of the AP was acutely successful with no procedural complications. Median procedure and fluoroscopy durations were 199 and 35 min, sequentially. Median Procedure duration fell significantly in the second half of series (174 min) compared to the first half (233 min, P = 0.05). One patient had evidence of a recurring AP conduction with pre-excitation at 5-week follow up. After a median follow up of 66.8+-6.5 months, 6 out of 7 patients remained asymptomatic and free of pre-excitation.</p></div><div><h3>Conclusion</h3><p>Simultaneous multi-catheter cryotherapy is feasible, safe and can provide definitive cure of accessory pathways that were previously resistant to standard radiofrequency ablation. Further study is required in the assessment of this novel form of advanced cryotherapy to treat complex and resistant arrhythmias.</p></div>","PeriodicalId":35900,"journal":{"name":"Indian Pacing and Electrophysiology Journal","volume":"24 1","pages":"Pages 1-5"},"PeriodicalIF":0.0,"publicationDate":"2024-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S0972629223001079/pdfft?md5=f2ea89d9561932f7e9026fe2eae26081&pid=1-s2.0-S0972629223001079-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136399582","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":"An unusual case of duplicated left brachiocephalic vein with right sided aortic arch and aberrant origin of LSCA in a patient undergoing implantable cardioverter defibrillator (ICD) implantation","authors":"Kshitij Prasad , Satyavir Yadav , Niraj Nirmal Pandey , Neeraj Kumar","doi":"10.1016/j.ipej.2023.12.003","DOIUrl":"10.1016/j.ipej.2023.12.003","url":null,"abstract":"<div><h3>Background</h3><p>Anomalous left brachiocephalic vein (ALBCV) is a rare venous anomaly. Double Left brachiocephalic vein is the rarest type of ALBCV anomaly.</p></div><div><h3>Case report</h3><p>Here we report a case of gentleman with post myocardial infarction ventricular tachycardia who underwent ICD implantation, where we could not place the lead initially through left side. CT angiography revealed presence of a duplicated circumaortic left BCV. It's cranial limb coursing normally anterior to arch and compressed at its confluence with RBCV and the caudal limb with a subaortic course draining into the RSVC. We report this first case of double LBCV along with right sided aortic arch and aberrant origin of LSCA arising from Kommerel's diverticulum.</p></div><div><h3>Conclusion</h3><p>This case highlights that interventional cardiologists should be aware of these venous anomalies for proper planning and implantation of CIED successfully via transvenous approach.</p></div>","PeriodicalId":35900,"journal":{"name":"Indian Pacing and Electrophysiology Journal","volume":"24 1","pages":"Pages 49-52"},"PeriodicalIF":0.0,"publicationDate":"2024-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S0972629223001298/pdfft?md5=c7c3a3540c6348ff0e7632aa18909e7a&pid=1-s2.0-S0972629223001298-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138804961","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}