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Subcutaneous defibrillator

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https://www.readbyqxmd.com/read/28534239/analysis-of-screening-electrocardiogram-for-the-subcutaneous-defibrillator-in-adults-with-congenital-heart-disease
#1
Vincent C Thomas, Mark Peterson, Martin McDaniel, Humberto Restrepo, Abraham Rothman, Amit Jain
Candidates for the subcutaneous implantable cardioverter-defibrillator (S-ICD) are screened using an electrocardiogram (S-ECG) tool to measure appropriate detection. We sought to define the S-ICD candidacy of congenital heart disease patients using the S-ECG tool. We also analyzed the reliability of the (S-ECG) tool between measurers in this population. Patients above the age of 12 and with a diagnosis associated with either a higher incidence of cardiac arrest or vascular access challenges were asked to undergo screening...
May 22, 2017: Pediatric Cardiology
https://www.readbyqxmd.com/read/28523371/impact-of-electrocardiogram-screening-during-drug-challenge-test-for-the-prediction-of-t-wave-oversensing-by-a-subcutaneous-implantable-cardioverter-defibrillator-in-patients-with-brugada-syndrome
#2
Tsukasa Kamakura, Mitsuru Wada, Kohei Ishibashi, Yuko Y Inoue, Koji Miyamoto, Hideo Okamura, Satoshi Nagase, Takashi Noda, Takeshi Aiba, Satoshi Yasuda, Kengo Kusano
Screening tests conducted at rest may be inadequate for the prediction of the T-wave oversensing (TWOS) in subcutaneous implantable cardioverter defibrillator (S-ICD) candidates with Brugada syndrome (BrS) because of the dynamic nature of electrocardiogram (ECG) morphology. We evaluated the utility of ECG screening during drug challenge (DC) for prediction of TWOS in BrS patients implanted with an S-ICD. The study enrolled 6 consecutive BrS patients implanted with an S-ICD. In addition to baseline ECG screening, pre-implant screening during DC using a sodium channel blocker was performed in all patients...
May 18, 2017: Heart and Vessels
https://www.readbyqxmd.com/read/28508439/conventional-and-right-sided-screening-for-subcutaneous-icd-in-a-population-with-congenital-heart-disease-at-high-risk-of-sudden-cardiac-death
#3
Pau Alonso, Joaquín Osca, Joaquín Rueda, Oscar Cano, Pedro Pimenta, Ana Andres, María José Sancho, Luis Martinez
BACKGROUND: Information regarding suitability for subcutaneous defibrillator (sICD) implantation in tetralogy of Fallot (ToF) and systemic right ventricle is scarce and needs to be further explored. The main objective of our study was to determine the proportion of patients with ToF and systemic right ventricle eligible for sICD with both, standard and right-sided screening methods. Secondary objectives were: (i) to study sICD eligibility specifically in patients at high risk of sudden cardiac death, (ii) to identify independent predictors for sICD eligibility, and (iii) to compare the proportion of eligible patients in a nonselected ICD population...
May 15, 2017: Annals of Noninvasive Electrocardiology
https://www.readbyqxmd.com/read/28502872/the-subcutaneous-icd-post-market-approval-study-clinical-characteristic-and-perioperative-results
#4
Michael R Gold, Johan D Aasbo, Mikhael F El-Chami, Mark Niebauer, John Herre, Jordan M Prutkin, Bradley P Knight, Steven Kutalek, Kevin Hsu, Raul Weiss, Eric Bass, Michael Husby, Timothy M Stivland, Martin C Burke
BACKGROUND: The subcutaneous implantable defibrillator (S-ICD) was developed to reduce short and long-term complications associated with transvenous ICD (TV-ICD) leads. Early multicenter studies included younger patients with less LV systolic dysfunction and fewer comorbidities than traditional ICD cohorts. OBJECTIVE: To characterize patient selection and the acute performance of the S-ICD in a contemporary real world setting. METHODS: The S-ICD PAS is a prospective registry involving 86 US centers...
May 11, 2017: Heart Rhythm: the Official Journal of the Heart Rhythm Society
https://www.readbyqxmd.com/read/28491810/oversensing-of-atrial-fibrillatory-waves-in-a-subcutaneous-implantable-cardioverter-defibrillator
#5
Ankur A Karnik, Robert H Helm, Kevin M Monahan
No abstract text is available yet for this article.
April 2017: HeartRhythm Case Reports
https://www.readbyqxmd.com/read/28491787/ventricular-tachycardia-slower-than-the-rate-cut-off-of-a-subcutaneous-cardiac-defibrillator-sensed-and-successfully-treated-as-a-result-of-oversensing
#6
Ali A Sovari, Ashkan Ehdaie, Qiang Liu, Xunzhang Wang, Charles Swerdlow, Michael Shehata
No abstract text is available yet for this article.
February 2017: HeartRhythm Case Reports
https://www.readbyqxmd.com/read/28491773/inappropriate-subcutaneous-implantable-cardioverter-defibrillator-therapy-due-to-r-wave-amplitude-variation-another-challenge-in-device-management
#7
Syeda A Batul, Felix Yang, Karan Wats, Suvash Shrestha, Yisachar J Greenberg
No abstract text is available yet for this article.
January 2017: HeartRhythm Case Reports
https://www.readbyqxmd.com/read/28491769/surgical-and-electrophysiological-considerations-in-the-management-of-a-patient-with-a-subcutaneous-implantable-cardioverter-defibrillator-undergoing-coronary-artery-bypass-surgery
#8
Brett Angel, Jay Overcash, Wade Fischer, John M Fontaine
No abstract text is available yet for this article.
January 2017: HeartRhythm Case Reports
https://www.readbyqxmd.com/read/28491765/systemic-infection-due-to-subcutaneous-implantable-cardioverter-defibrillator-implantation-importance-of-early-recognition-and-treatment-of-device-pocket-related-complications
#9
Patrick M Looser, Layth Saleh, George Thomas, Jim W Cheung
No abstract text is available yet for this article.
January 2017: HeartRhythm Case Reports
https://www.readbyqxmd.com/read/28491741/inappropriate-shocks-in-a-patient-with-a-subcutaneous-implantable-cardioverter-defibrillator
#10
Sana M Al-Khatib, Sasmrita Belbase, Diane Sauro, Gail Brock, Kathleen Brink, Kevin P Jackson
No abstract text is available yet for this article.
November 2016: HeartRhythm Case Reports
https://www.readbyqxmd.com/read/28491723/substernal-implantation-of-a-subcutaneous-implantable-cardioverter-defibrillator-in-a-patient-with-preexisting-hemodialysis-reliable-outflow-graft
#11
Thomas A Boyle, Joshua Cohen, Roger Carrillo
No abstract text is available yet for this article.
September 2016: HeartRhythm Case Reports
https://www.readbyqxmd.com/read/28491718/t-wave-oversensing-during-drug-challenge-test-after-subcutaneous-implantable-cardioverter-defibrillator-implantation-in-a-patient-with-brugada-syndrome
#12
Tsukasa Kamakura, Taiki Sato, Mitsuru Wada, Kohei Ishibashi, Takashi Noda, Kengo Kusano
No abstract text is available yet for this article.
September 2016: HeartRhythm Case Reports
https://www.readbyqxmd.com/read/28489502/advances-in-cardiac-pacing-and-defibrillation
#13
Kristin Ellison, Parikshit S Sharma, Richard Trohman
There have been many milestones in the evolution of cardiac implantable electronic devices (CIEDs) over the past few decades. Along with advancements in the field, new challenges have arisen. The ability to pace the right ventricular was the original breakthrough in the late 1950s, however adverse structural and clinical effects of long-term pacing induced dyssynchrony have recently become evident. Biventricular pacing has provided a viable option to help mitigate dyssynchrony, but has only proved to be beneficial for selective patients (primarily left bundle branch block and QRS duration ≥ 150 ms with depressed left ventricular (LV) function)...
May 10, 2017: Expert Review of Cardiovascular Therapy
https://www.readbyqxmd.com/read/28460030/subcutaneous-cardioverter-defibrillator-has-longer-time-to-therapy-but-is-less-cardiotoxic-than-transvenous-cardioverter-defibrillator-study-carried-out-in-a-preclinical-porcine-model
#14
Rodrigue Garcia, Sofiane Inal, Frederic Favreau, Christophe Jayle, Thierry Hauet, Patrick Bruneval, Thomas Kerforne, Jamil Hajj-Chahine, Bruno Degand
Aims: Totally subcutaneous implantable cardioverter defibrillator (S-ICD) delivers higher shock energy and can have longer time to therapy compared to transvenous implantable cardioverter defibrillator (T-ICD). Aim of the study was to compare time to therapy and to investigate cardiac, cerebral and systemic injuries of S-ICD and T-ICD shocks delivered after ventricular fibrillation (VF) induction. Methods and results: Fourteen pigs were randomly implanted with a S-ICD (n = 7) or a T-ICD (n = 7)...
April 27, 2017: Europace: European Pacing, Arrhythmias, and Cardiac Electrophysiology
https://www.readbyqxmd.com/read/28457236/ventricular-arrhythmias-in-adult-congenital-heart-disease-mechanisms-diagnosis-and-clinical-aspects
#15
REVIEW
Gnalini Sathananthan, Louise Harris, Krishnakumar Nair
The risk of ventricular arrhythmias in the adult congenital heart disease population increases with age. The mechanism, type, and frequency vary depending on the complexity of the defect, whether it has been repaired, and the type and timing of repair. Risk stratification for sudden death in patients with congenital heart disease is often challenging. Current recommendations provide a useful guide for management of these patients and risk stratification continues to evolve. Internal cardiac defibrillator implantation is often challenging due to limited transvenous access, often resulting in the need for epicardial or subcutaneous devices...
June 2017: Cardiac Electrophysiology Clinics
https://www.readbyqxmd.com/read/28432805/pitfalls-in-electrogram-interpretation-subcutaneous-cardioverter-defibrillator-malfunction-in-brugada-syndrome
#16
Giovanni Morani, Bruna Bolzan, Luca Tomasi, Ruggero Tomei, Corrado Vassanelli
A patient with Brugada Syndrome implanted with subcutaneous cardioverter defibrillator (S-ICD) had oversensing episodes treated with S-ICD shocks. Comparable artefacts weren't evocable with S-ICD pocket manipulation. The fluoroscopy excluded S-ICD macroscopic damage. The device extraction revealed undamaged pulse generator and connector, but the lead was inappropriately tunnelled under the sixth rib. Then the S-ICD malfunction was due to lead microscopic damage caused by lead rubbing the rib surface. This article is protected by copyright...
April 22, 2017: Pacing and Clinical Electrophysiology: PACE
https://www.readbyqxmd.com/read/28416987/importance-of-exercise-testing-shortly-after-subcutaneous-implantable-cardioverter-defibrillator-implantation-in-patients-with-brugada-syndrome-the-first-case-of-associated-inappropriate-shock-in-japan
#17
Kohei Ishibashi, Takashi Noda, Tsukasa Kamakura, Mitsuru Wada, Yuko Inoue, Hideo Okamura, Kengo Kusano
We report the case of a 51-year-old patient with Brugada syndrome (BrS) who experienced inappropriate shock due to T-wave oversensing (TWOS) during exercise when the optimal sensing vector was selected based on the automatic analysis by a subcutaneous implantable cardioverter-defibrillator (S-ICD). After selecting another vector during exercise testing, TWOS did not re-occur. Selection of appropriate sensing vector based on analyses under various conditions, including during exercise after S-ICD implantation, should be considered for patients with BrS...
April 2017: Journal of Arrhythmia
https://www.readbyqxmd.com/read/28408651/disease-severity-and-exercise-testing-reduce-subcutaneous-implantable-cardioverter-defibrillator-left-sternal-ecg-screening-success-in-hypertrophic-cardiomyopathy
#18
Neil T Srinivasan, Kiran H Patel, Kashif Qamar, Amy Taylor, Marco Bacà, Rui Providência, Maria Tome-Esteban, Perry M Elliott, Pier D Lambiase
BACKGROUND: The features of the hypertrophic cardiomyopathy (HCM) ECG make it a challenge for subcutaneous implantable cardioverter-defibrillator (S-ICD) screening. We aimed to investigate the causes of screening failure at rest and on exercise to inform optimal S-ICD ECG vector development. METHODS AND RESULTS: One hundred and thirty-one HCM patients (age, 50±16 years; 92 males and 39 females) with ≥1 HCM risk factor for sudden death underwent S-ICD ECG screening at rest and on exercise...
April 2017: Circulation. Arrhythmia and Electrophysiology
https://www.readbyqxmd.com/read/28403391/outcomes-associated-with-subcutaneous-implantable-cardioverter-defibrillators-reply
#19
Daniel J Friedman, Sana M Al-Khatib
No abstract text is available yet for this article.
April 12, 2017: JAMA Cardiology
https://www.readbyqxmd.com/read/28403390/outcomes-associated-with-subcutaneous-implantable-cardioverter-defibrillators
#20
Abdul Wase, Thein T Aung, Ronald J Markert
No abstract text is available yet for this article.
April 12, 2017: JAMA Cardiology
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