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Indian Pacing and Electrophysiology Journal

Arun Gopi
No abstract text is available yet for this article.
March 2016: Indian Pacing and Electrophysiology Journal
Vikas Kataria, Amitabh Yaduvanshi, Mohan Nair
No abstract text is available yet for this article.
March 2016: Indian Pacing and Electrophysiology Journal
Anilkumar Singhi, Ejaz Ahmed Sheriff, Kothandam Sivakumar
Complex cyanotic congenital heart diseases with left isomerism are sometimes associated with atrioventricular nodal conduction disturbances that may need permanent pacing. Surgical palliation in such anatomy connecting the superior vena cava to the pulmonary artery precludes a transvenous access for an endocardial pacing lead to the ventricles. Epicardial leads in these patients fail if the pacing thresholds are very high. We report transhepatic permanent ventricular lead implantation for a young boy with heterotaxy complicated by complete heart block...
March 2016: Indian Pacing and Electrophysiology Journal
Fabio Quartieri, Daniele Giacopelli, Matteo Iori, Nicola Bottoni
In this case report, we look into the implant procedure of a single-lead ICD with floating atrial sensing dipole in a pregnant woman, without using fluoroscopy. This system benefits the proper positioning of the lead. This is possible thanks to the simultaneous display of both the atrial and ventricular dipoles on the electro-anatomical mapping system. This technique may be taken into consideration for the few rare cases where fluoroscopy is absolutely contraindicated.
March 2016: Indian Pacing and Electrophysiology Journal
U Lakshmanadoss, A Mertens, M Gallagher, I Kutinsky, B Williamson
Inherited arrhythmia syndromes are a known, albeit rare, cause of sudden cardiac arrest which may present with characteristic electrocardiogram changes in patients with structurally normal heart. There are a variety of distinct arrhythmogenic syndromes that arise from mutations in voltage gated sodium channels, resulting in either gain or loss of function. We describe a patient with a primary inherited arrhythmia syndrome which presented as sudden cardiac arrest. Further workup revealed that her arrest was due to a combination of Brugada syndrome and Long QT3 syndrome secondary to a deleterious mutation of voltage-gated, sodium channel, type V alpha subunit (SCN5A Thr1709Met)...
March 2016: Indian Pacing and Electrophysiology Journal
Massimo Giammaria, Gianluca Quirino, Enrico Cecchi, Gaetano Senatore, Paolo Pistelli, Mario Bocchiardo, Roberto Mureddu, Paolo Diotallevi, Eraldo Occhetta, Andrea Magnani, Mauro Bensoni, Catia Checchinato, Valentina Conti, Sandra Badolati, Antonio Mazza
BACKGROUND: AtrioVentricular (AV) and InterVentricular (VV) delay optimization can improve ventricular function in Cardiac Resynchronization Therapy (CRT) and is usually performed by means of echocardiography. St Jude Medical has developed an automated algorhythm which calculates the optimal AV and VV delays (QuickOpt™) based on Intracardiac ElectroGrams, (IEGM), within 2 min. So far, the efficacy of the algorhythm has been tested acutely with standard lead position at right ventricular (RV) apex...
March 2016: Indian Pacing and Electrophysiology Journal
Srinivasa Prasad, Narayanan Namboodiri, Anees Thajudheen, Gurbhej Singh, Mukund A Prabhu, S P Abhilash, Krishnakumar Mohanan Nair, Aamir Rashid, V K Ajit Kumar, Jaganmohan A Tharakan
BACKGROUND: Many subjects in community have non-type 1 Brugada pattern ECG with atypical symptoms, relevance of which is not clear. Provocative tests to unmask type 1 Brugada pattern in these patients would help in diagnosing Brugada Syndrome. However sensitivity and specificity of provocating drugs are variable. METHODS: We studied 29 patients referred to our institute with clinical presentation suggestive but not diagnostic of Brugada or with non-Type 1 Brugada pattern ECG...
March 2016: Indian Pacing and Electrophysiology Journal
Marc-Alexander Ohlow, Marcus Roos, Bernward Lauer, J Christoph Geller
The purpose of this study was to assess (1) the incidence of safety margin testing <10 J (SMT) and (2) the efficacy/safety of routinely adding a subcutaneous array (SQA) (Medtronic 6996SQ) for these patients. Patients with SMT smaller than a 10-J safety margin from maximum output were considered to have very high readings and underwent SQA insertion. These patients were compared with the rest of the patients who had acceptable SMT (≥10 J). A total of 616 patients underwent ICD implantation during the analysis period...
March 2016: Indian Pacing and Electrophysiology Journal
Soumen Devidutta, Chennapragada Sridevi, Calambur Narasimhan
Cardiac resynchronization therapy device (CRT-P and CRT-D) implantation has increased tremendously with increasing operator experience, eligible patients and expansion of indications. Refinements in devices and algorithms now aid physicians to improve biventricular pacing and optimize CRT. We report a case in which an interesting device program was used to achieve biventricular pacing after repeated dislodgement of the atrial lead in a patient implanted with CRT-D.
January 2016: Indian Pacing and Electrophysiology Journal
Amit Noheria, Siva K Mulpuru, Peter A Noseworthy, Samuel J Asirvatham
We present a case of incessant wide-complex tachycardia in a patient with left-ventricular assist device, and discuss the differential diagnosis with an in-depth analysis of the intracardiac tracings during the invasive electrophysiologic study, including interpretation of the relative timing of the fascicular signals during tachycardia and in sinus rhythm, and interpretation of pacing and entrainment maneuvers.
January 2016: Indian Pacing and Electrophysiology Journal
Manish Undavia, Hejmadi Prabhu, Todd Cohen
We present a case of a patient with significant structural heart disease from previous cardiac surgeries who presented for an electrophysiology study and radiofrequency ablation. The case highlights the significance of intra-atrial conduction delays in such patients and potential pitfalls it can present while interpreting intra-cardiac electrograms especially during implantable cardioverter defibrillator (ICD) interrogations.
January 2016: Indian Pacing and Electrophysiology Journal
Cheryl Teres, Mehdi Namdar, Dipen Shah
No abstract text is available yet for this article.
January 2016: Indian Pacing and Electrophysiology Journal
Elisa Ebrille, Christopher V DeSimone, Vaibhav R Vaidya, Anwar A Chahal, Vuyisile T Nkomo, Samuel J Asirvatham
Although great strides have been made in the areas of ventricular pacing, it is still appreciated that dyssynchrony can be malignant, and that appropriately placed pacing leads may ameliorate mechanical dyssynchrony. However, the unknowns at present include: 1. The mechanisms by which ventricular pacing itself can induce dyssynchrony; 2. Whether or not various pacing locations can decrease the deleterious effects caused by ventricular pacing; 3. The impact of novel methods of pacing, such as atrioventricular septal, lead-less, and far-field surface stimulation; 4...
January 2016: Indian Pacing and Electrophysiology Journal
Bijal Vyas, Ratna D Puri, Narayanan Namboodiri, Renu Saxena, Mohan Nair, Prahlad Balakrishnan, M P Jayakrishnan, Ameya Udyavar, Ravi Kishore, Ishwar C Verma
BACKGROUND: Long QT syndromes (LQTS) are characterized by prolonged QTc interval on electrocardiogram (ECG) and manifest with syncope, seizures or sudden cardiac death. Long QT 1-3 constitute about 75% of all inherited LQTS. We classified a cohort of Indian patients for the common LQTS based on T wave morphology and triggering factors to prioritize the gene to be tested. We sought to identify the causative mutations and mutation spectrum, perform genotype-phenotype correlation and screen family members...
January 2016: Indian Pacing and Electrophysiology Journal
Suvash Shrestha, On Chen, Mary Greene, Jinu Jacob John, Yisachar Greenberg, Felix Yang
Convergent atrial fibrillation ablation involves extensive epicardial as well as endocardial ablation of the left atrium. We examined whether it changes the morphology of the surface P wave. We reviewed electrocardiograms of 29 patients who underwent convergent ablation for atrial fibrillation. In leads V1, II and III, we measured P wave duration, area and amplitude before ablation, and at 1, 3 and 6 months from ablation. After ablation, there were no significant changes in P wave amplitude, area, or duration in leads II and III...
January 2016: Indian Pacing and Electrophysiology Journal
Gopi Dandamudi
No abstract text is available yet for this article.
January 2016: Indian Pacing and Electrophysiology Journal
Moisés Rodríguez-Mañero, Paul Schurmann, Miguel Valderrábano
A perceived distinctive feature of cryoablation is the stability (cryoadherence) of the catheter tip during cold temperatures at the desired location, even during tachycardia. We report the case report of a young patient with a parahisian accessory pathway where stability of the ablation catheter was not achieved despite using the cryocatheter with a steerable sheath. Ultimately, stability at the desired location was achieved robotically by means of Hansen system (Hansen Medical, Mountain View, CA, USA).
November 2015: Indian Pacing and Electrophysiology Journal
Praloy Chakraborty, Bhavna Kaul, Kausik Mandal, H S Isser, Sandeep Bansal, Anandaraja Subramanian
Bidirectional ventricular tachycardia (BDVT) is a rare form of ventricular arrhythmia, characterized by changing QRS axis of 180 degrees. Digitalis toxicity is considered as commonest cause of BDVT; other causes include aconite toxicity, myocarditis, myocardial infarction, metastatic cardiac tumour and cardiac channelopathies. We describe a case of BDVT in a patient with Anderson-Tawil syndrome.
November 2015: Indian Pacing and Electrophysiology Journal
Sandia Iskandar, Madhav Lavu, Moustapha Atoui, Dhanunjaya Lakkireddy
Although current lead design and filtering capabilities have greatly improved, Electromagnetic Interference (EMI) from environmental sources has been increasingly reported in patients with Cardiac Implantable Electronic Device (CIED) [1]. Few cases of inappropriate intracardiac Cardioverter Defibrillator (ICD) associated with swimming pool has been described [2]. Here we present a case of 64 year old male who presented with an interesting EMI signal that was subsequently identified to be related to AC current leak in his swimming pool...
November 2015: Indian Pacing and Electrophysiology Journal
Alexander Kypta, Hermann Blessberger, Michael Lichtenauer, Thomas Lambert, Juergen Kammler, Clemens Steinwender
A 65-year-old man was scheduled for pacemaker implantation for symptomatic sick-sinus-syndrome (SSS). He suffered from multiple drug-allergies and allergies to several metals like quicksilver and titanium. Gold-coated pacemaker generators and polyurethane leads are effective in avoiding allergic reactions to pacing system components. Therefore, we decided to implant a custom-made gold-coated DDDR-pacemaker generator and polyurethane leads.
November 2015: Indian Pacing and Electrophysiology Journal
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