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His bundle pacing

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https://www.readbyqxmd.com/read/29781518/an-interesting-case-of-wide-qrs-tachycardia-with-right-bundle-branch-block-morphology-what-is-the-mechanism
#1
Krishna Kumar Mohanan Nair, Narayanan Namboodiri, Hiren Kevadiya, Ajitkumar Valaparambil
A 30 year old gentleman with no structural heart disease has been evaluated for paroxysmal palpitation with documented regular wide QRS tachycardia that has not responded to IV adenosine. Surface electrocardiogram has not shown any pre-excitation. He has been taken for an EP study after informed consent. Diagnostic catheters were placed at coronary sinus (CS), His bundle region and right ventricle (RV). During catheter manipulation a regular wide QRS tachycardia with right bundle branch block morphology (RBBB) with a tachycardia cycle length (TCL) of 400 ms and normal QRS axis similar to the clinical tachycardia got induced (Fig:1)...
May 21, 2018: Pacing and Clinical Electrophysiology: PACE
https://www.readbyqxmd.com/read/29773160/his-bundle-pacing-the-holy-grail-of-pacing
#2
EDITORIAL
Kenneth A Ellenbogen, Santosh K Padala
No abstract text is available yet for this article.
May 22, 2018: Journal of the American College of Cardiology
https://www.readbyqxmd.com/read/29759837/clinical-features-and-sites-of-ablation-for-patients-with-incessant-supraventricular-tachycardia-from-concealed-nodofascicular-and-nodoventricular-tachycardias
#3
Frederick T Han, Eric M Riles, Nitish Badhwar, Melvin M Scheinman
OBJECTIVES: This study sought to describe the clinical features and sites of successful ablation for incessant nodofascicular (NF) and nodoventricular (NV) tachycardias. BACKGROUND: Incessant supraventricular tachycardias have been associated with tachycardia-induced cardiomyopathies and have been previously attributed to permanent junctional reciprocating tachycardias, atrial tachycardias, and atrioventricular nodal re-entrant tachycardias. Incessant concealed NF and NV tachycardias have not been described previously...
December 26, 2017: JACC. Clinical Electrophysiology
https://www.readbyqxmd.com/read/29759615/enhancing-response-in-the-cardiac-resynchronization-therapy-patient-the-3b-perspective-bench-bits-and-bedside
#4
REVIEW
Angelo Auricchio, Frits W Prinzen
Cardiac resynchronization therapy (CRT) is an established nonpharmacological treatment for patients with heart failure (HF), reduced left ventricular (LV) ejection fraction, and a wide QRS complex. Although the therapy was developed 30 years ago and approved by the Food and Drug Administration in 2001, attempts to improve it have never stopped. Such improvements have been facilitated by combining knowledge from bench (basic science), bits (computer modeling), and bedside (clinical studies); these issues are addressed in the present review...
November 2017: JACC. Clinical Electrophysiology
https://www.readbyqxmd.com/read/29701822/permanent-his-bundle-pacing-a-systematic-literature-review-and-meta-analysis
#5
Francesco Zanon, Kenneth A Ellenbogen, Gopi Dandamudi, Parikshit S Sharma, Weijian Huang, Daniel L Lustgarten, Roderick Tung, Hiroshi Tada, Jayanthi N Koneru, Tracy Bergemann, Dedra H Fagan, John Harrison Hudnall, Pugazhendhi Vijayaraman
Aims: Permanent cardiac pacing of the His-bundle restores and retains normal electrical activation of the ventricles. Data on His-bundle pacing (HBP) are largely limited to small single-centre reports, and clinical benefits and risks have not been systematically examined. We sought to systematically examine published studies of patients undergoing permanent HBP and quantify the benefits and risks of the therapy. Methods and results: PubMed, Embase, and Cochrane Library were searched for full-text articles on permanent HBP...
April 26, 2018: Europace: European Pacing, Arrhythmias, and Cardiac Electrophysiology
https://www.readbyqxmd.com/read/29678778/clinical-and-electrophysiological-characteristics-of-patients-with-paroxysmal-intra-his-block-with-narrow-qrs-complexes
#6
Loheetha Ragupathi, Drew Johnson, Arnold Greenspon, Daniel Frisch, Reginald T Ho, Behzad B Pavri
BACKGROUND: Atrioventricular (AV) block is usually due to infranodal disease and associated with a wide QRS complex; such patients often progress to complete AV block and pacemaker dependency. Uncommonly, infranodal AV block can occur within the His bundle with a narrow QRS complex. OBJECTIVES: The aims of this study were to define clinical/echocardiographic characteristics of patients with AV block within the His bundle and report progression to pacemaker dependency...
April 18, 2018: Heart Rhythm: the Official Journal of the Heart Rhythm Society
https://www.readbyqxmd.com/read/29622459/upgrade-to-his-bundle-pacing-in-pacing-dependent-patients-referred-for-pulse-generator-change-feasibility-and-intermediate-term-follow-up
#7
Yang Ye, Zuwen Zhang, Xia Sheng, Bei Wang, Shiquan Chen, Yiwen Pan, Jingliang Lan, Yaxun Sun, Yi Luan, Chenyang Jiang, Guosheng Fu
BACKGROUND: Right ventricular pacing (RVP) is associated with an increased incidence of heart failure and may impair cardiac function. Permanent His bundle pacing (HBP) has the potential to physiologically preserve and prevent cardiac dysfunction. This study was to evaluate the feasibility and intermediate follow-up results of upgrade to HBP implantation in patients referred for pulse generator change with long term RVP. METHODS: Twelve of 14 pacing dependent patients who were referred for pulse generator exchange underwent upgrade into HBP successfully in our center...
June 1, 2018: International Journal of Cardiology
https://www.readbyqxmd.com/read/29622418/permanent-his-bundle-pacing-a-physiological-alternative-to-conventional-right-ventricular-pacing-or-just-a-futile-artifice
#8
EDITORIAL
Giuseppe Ricciardi, Luca Checchi
No abstract text is available yet for this article.
June 1, 2018: International Journal of Cardiology
https://www.readbyqxmd.com/read/29608497/his-bundle-pacing-hemodynamics-and-clinical-outcomes
#9
Brijesh Patel, Jalaj Garg, Rahul Chaudhary, Naveen Sablani, Rahul Gupta, Mahek Shah, Talha Nazir, Babak Bozorgnia, Andrea Natale
From 1993 to 2009, nearly 2.9 million pacemakers were implanted in the United States; the majority of which were dual chamber pacemakers. One of the major physiologic advantages of dual chamber pacing over single chamber ventricular pacing is atrioventricular synchrony, which prevents the pacemaker syndrome. However, patients who are pacemaker dependent or use right ventricle (RV) apical pacing more than 40% of the time are at a risk of developing heart failure from electromechanical dyssynchrony. Studies have also shown that RV pacing results in non-physiological activation of the left ventricle, leading to adverse clinical outcomes...
March 30, 2018: Cardiology in Review
https://www.readbyqxmd.com/read/29550833/a-case-of-lown-ganong-levine-syndrome-due-to-an-accessory-pathway-of-james-fibers-or-enhanced-atrioventricular-nodal-conduction-eavnc
#10
Juanita Hunter, Emmanouil Tsounias, John Cogan, Ming-Lon Young
BACKGROUND Lown-Ganong-Levine syndrome, includes a short PR interval, normal QRS complex, and paroxysmal tachycardia. The pathophysiology of this syndrome includes an accessory pathway connecting the atria and the atrioventricular (AV) node (James fiber), or between the atria and the His bundle (Brechenmacher fiber). Similar features are seen in enhanced atrioventricular nodal conduction (EAVNC), with the underlying pathophysiology due to a fast pathway to the AV node, and with the diagnosis requiring specific electrophysiologic criteria...
March 18, 2018: American Journal of Case Reports
https://www.readbyqxmd.com/read/29535066/clinical-outcomes-of-his-bundle-pacing-compared-to-right-ventricular-pacing
#11
Mohamed Abdelrahman, Faiz A Subzposh, Dominik Beer, Brendan Durr, Angela Naperkowski, Haiyan Sun, Jess W Oren, Gopi Dandamudi, Pugazhendhi Vijayaraman
BACKGROUND: Right ventricular pacing (RVP) is associated with heart failure and increased mortality. His bundle pacing (HBP) is a physiological alternative to RVP. OBJECTIVES: This study sought to evaluate clinical outcomes of HBP compared to RVP. METHODS: All patients requiring initial pacemaker implantation between October 1, 2013, and December 31, 2016, were included in the study. Permanent HBP was attempted in consecutive patients at 1 hospital and RVP at a sister hospital...
May 22, 2018: Journal of the American College of Cardiology
https://www.readbyqxmd.com/read/29525386/cardiac-resynchronization-therapy-with-his-bundle-pacing-as-a-method-of-treatment-of-chronic-heart-failure-in-patients-with-permanent-atrial-fibrillation-and-left-bundle-branch-block
#12
Krzysztof Boczar, Agnieszka Sławuta, Andrzej Ząbek, Maciej Dębski, Jacek Gajek, Jacek Lelakowski, Barbara Małecka
CRT is a therapeutic option for patients with heart failure, sinus rhythm, prolonged QRS complex duration and reduced ejection fraction. We present a case of 71-year-old woman with dilated cardiomyopathy, NYHA functional class III and AF. We implanted CRT combined with direct His-bundle pacing. The indication for such a therapy was a left bundle branch block with a QRS complex of 178ms and a left ventricular EF of 15%, left ventricular end-diastolic diameter (LVEDD) of 75mm. After 8months of follow-up the LVEDD was 60mm with EF 35-40%...
March 2, 2018: Journal of Electrocardiology
https://www.readbyqxmd.com/read/29524475/approach-to-permanent-his-bundle-pacing-in-challenging-implants
#13
Pugazhendhi Vijayaraman, Kenneth A Ellenbogen
No abstract text is available yet for this article.
March 8, 2018: Heart Rhythm: the Official Journal of the Heart Rhythm Society
https://www.readbyqxmd.com/read/29508156/cardiac-resynchronization-therapy-emerging-therapeutic-approaches
#14
REVIEW
Neal A Chatterjee, E Kevin Heist
Cardiac resynchronization therapy (CRT) is an important therapeutic tool in the management of patients with heart failure and electrical dyssynchrony. In appropriately selected patients, landmark randomized controlled trials have demonstrated morbidity and mortality benefit beyond standard goal-directed medical therapy. Current guidelines emphasize the greatest clinical efficacy of CRT in patients with symptomatic heart failure, left bundle branch block, and wide QRS duration (> 150 ms). Other relevant considerations include the presence of atrial fibrillation, the presence of AV block, the etiology of cardiomyopathy, the presence of masked left-sided conduction delay, and the impact of comorbidities that might predict poor clinical response...
March 6, 2018: Current Treatment Options in Cardiovascular Medicine
https://www.readbyqxmd.com/read/29508149/permanent-his-bundle-pacing-for-cardiac-resynchronization
#15
REVIEW
William A Huang, Maereg A Wassie, Olujimi A Ajijola
His bundle pacing (HBP) has been shown to be a feasible, beneficial, and safe way to achieve cardiac resynchronization therapy (CRT) with recruitment of the heart's physiological conduction system. HBP should be considered for those with unfavorable coronary sinus (CS) anatomy, and nonresponders to biventricular (BiV) pacing. HBP CRT may also help patients with the nonleft bundle branch block form of conduction delay and heart failure (HF). HBP CRT should be considered strongly in preventing right ventricular (RV) pacing-induced cardiomyopathy, especially after atrioventricular nodal ablation given the discrete nature of the block and the low likelihood of distal block...
March 6, 2018: Current Treatment Options in Cardiovascular Medicine
https://www.readbyqxmd.com/read/29454549/technology-advances-to-improve-response-to-cardiac-resynchronization-therapy-what-clinicians-should-know
#16
Angelo Auricchio, Ward A Heggermont
Cardiac resynchronization therapy (CRT) is a well-established treatment for symptomatic heart failure patients with reduced left ventricular ejection fraction, prolonged QRS duration, and abnormal QRS morphology. The ultimate goals of modern CRT are to improve the proportion of patients responding to CRT and to maximize the response to CRT in patients who do respond. While the rate of CRT nonresponders has moderately but progressively decreased over the last 20 years, mostly in patients with left bundle branch block, in patients without left bundle branch block the response rate is almost unchanged...
February 14, 2018: Revista Española de Cardiología
https://www.readbyqxmd.com/read/29442383/atrial-overdrive-pacing-during-lbbb-tachycardia-what-is-the-mechanism
#17
Krishna Kumar Mohanan Nair, Narayanan Namboodiri, Hiren Kevadiya, Ajitkumar Valaparambil
No abstract text is available yet for this article.
April 2018: Pacing and Clinical Electrophysiology: PACE
https://www.readbyqxmd.com/read/29428145/his-bundle-pacing-is-it-ready-for-prime-time
#18
REVIEW
Fatima M Ezzeddine, Gopi Dandamudi
Long-term right ventricular apical pacing has been associated with detrimental effects, including an increased risk for heart failure, atrial fibrillation, and death. Most of these adverse effects result from ventricular dyssynchrony related to perturbed ventricular depolarization. In addition, biventricular pacing has limited benefits in patients with non-left bundle branch block and severely reduced ejection fraction. Consequently, alternative pacing strategies that mimic natural physiology are desired. Recently, permanent His bundle pacing has emerged as a true physiologic form of ventricular pacing that has been shown to be safe and feasible in clinical practice...
March 2018: Cardiac Electrophysiology Clinics
https://www.readbyqxmd.com/read/29428138/venous-system-interventions-for-device-implantation
#19
REVIEW
Jose M Marcial, Seth J Worley
Subclavian obstruction is common after lead implantation and the need to add or replace a lead is increasing. Subclavian venoplasty (SV) is a safe and effective option for venous occlusion. Peripheral venography overestimates the severity of the obstruction. A wire can usually be advanced into the central circulation for SV. Compared with dilators, SV improves the quality of venous access, providing unrestricted catheter manipulation for His bundle pacing and left ventricular lead implantation. SV preserves venous access and reduces lead burden...
March 2018: Cardiac Electrophysiology Clinics
https://www.readbyqxmd.com/read/29387545/obstacles-preventing-biventricular-pacing-mitigated-with-lead-extraction-and-his-bundle-pacing-to-achieve-effective-cardiac-resynchronization
#20
Advay G Bhatt, Dan L Musat, Mark W Preminger, Tina Sichrovsky, Suneet Mittal
No abstract text is available yet for this article.
November 2017: HeartRhythm Case Reports
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