Automatic adjustment of pacing output in the clinical setting

Ribeiro, Antônio Luiz Pinho; Rincon, Leonor Garcia; Oliveira, Bruna Guimarães; Vinha, Caio R; Melatto, Douglas; Torres, A; Barros, Vladimir Costa Val; Levine, Paul A.

doi:10.1016/s0002-8703(03)00529-5

Cited by 38 publications

(32 citation statements)

References 15 publications

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“…Pacing by capture verification of the stimulation threshold has become the gold standard in ventricular pacing since the release of the first Autocapture TM‐featured pacemaker in 1994 1 . Over the last decade, the development of algorithms for the automatic detection of the ventricular pacing threshold and for the adjustment of ventricular output have improved patient safety and increased pacemaker longevity 2–7 . Moreover, automatic measurement of the pacing threshold and automatic output adjustment will be fundamental features of the remote monitoring of pacemaker/implantable cardioverter defibrillator (ICD) patients in the near future.…”

Section: Introductionmentioning

confidence: 99%

Atrial Threshold Variability: Implications for Automatic Atrial Stimulation Algorithms

Biffi

Spitali

Silvetti

et al. 2007

Pacing Clinical Electrophis

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The reliability of ACM is high over a long follow-up. On the basis of atrial threshold variability, a practical approach to ACM programming should be two daily atrial threshold measurements in patients with normal AV conduction and%Ap < or = 40%, or with normal sinus activity and AVB, whereas 3-4 measurements should be recommended in patients with first-degree AVB and%Ap > 40% or with recurrent atrial fibrillation and AVB. The lowest adapted stimulation output should achieve at least threshold +1 V in the first trimester after implantation, then threshold +0.5 V thereafter, in order to achieve > 99.5% effective atrial stimulation.

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Section: Introductionmentioning

confidence: 99%

Atrial Threshold Variability: Implications for Automatic Atrial Stimulation Algorithms

Biffi

Spitali

Silvetti

et al. 2007

Pacing Clinical Electrophis

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“…At the same time, reliable CM allows for an increase in the number of remote device follow-ups, which may add to cost-effectiveness. 11–18 …”

Section: Discussionmentioning

confidence: 99%

Manual vs. automatic capture management in implantable cardioverter defibrillators and cardiac resynchronization therapy defibrillators

et al. 2010

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AimsThe Secura™ ICD and Consulta™ CRT-D are the first defibrillators to have automatic right atrial (RA), right ventricular (RV), and left ventricular (LV) capture management (CM). Complete CM was evaluated in an implantable cardioverter defibrillator (ICD) population.Methods and resultsTwo prospective clinical studies were conducted in 28 centres in Europe and Israel. Automatic CM data were compared with manual threshold measurements, the CM applicability was determined, and adjustments to pacing outputs were analysed. In total, 160 patients [age 64.6 ± 10.4 years, 77% male, 80 ICD and 80 cardiac resynchronization therapy defibrillator (CRT-D)] were included. The differences between automatic and manual measurements were ≤0.25 V in 97% (RA CM) and 96% (RV CM) and were all within the safety margin. Fully automatic CM measurements were available within 1 week prior to the 3-month visit in 90% (RA), 99% (RV), and 97% (LV) of the patients. Results indicated increased output (threshold >2.5 V) due to raised RA threshold in seven (4.4%), high RV threshold in nine (5.6%), and high LV threshold in three patients (3.8%). All high threshold detections and all automatic modulations of pacing output were adjudicated appropriate.ConclusionComplete CM adjusts pacing output appropriately, permitting a reduction in office visits while it may maximize device longevity.The study was registered at ClinicalTrials.gov identifiers: NCT00526227 and NCT00526162.

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“…Foram selecionados oitenta pacientes portadores de marca-passo uni ou bicameral, atendidos no Laboratório de Marca-passo do Hospital das Clínicas da Universidade Federal de Minas Gerais (UFMG) no período de janeiro de 2001 a novembro de 2002, conforme descrito previamente 19 . O projeto de pesquisa foi aprovado pelo Comitê de Ética em Pesquisa da UFMG e os pacientes foram esclarecidos a respeito do protocolo de estudo, tendo todos eles concordado na sua participação e assinado o termo de consentimento.…”

Section: Methodsunclassified

Perfil clínico de pacientes chagásicos e não-chagásicos portadores de marca-passo cardíaco artificial

Rincon

Rocha

Pires

et al. 2006

Rev. Soc. Bras. Med. Trop.

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A doença de Chagas é uma patologia endêmica, de larga distribuição nas Américas Central e do Sul. A doença é encontrada em 21 países deste continente, com cerca de16 a 18 milhões de pessoas infectadas e cem milhões em risco de adquiri-la 21 . A miocardite crônica fibrosante que ocorre na fase crônica da doença é responsável não só pela perda da função contrátil do miocárdio como também pelo ABSTRACTThe aim of this study was to compare Chagas and non-Chagas' disease patients using single or dual-chamber pacemaker in relation to the ejection fraction of the left ventricle, the ventricular stimulation threshold and the occurrence of ventricular arrhythmia. From January, 2001 to November, 2002, 45 Chagas' disease patients and 35 non-Chagas' disease patients, all pacemaker users, were evaluated considering clinical history, echocardiographic study, Holter monitoring and analysis of the pacemaker telemetry data. Chagas' disease patients were significantly younger, but both groups were similar when chest X-Ray variables and right ventricular stimulation threshold were analyzed. Chagas' disease patients had a lower left ventricular ejection fraction and more frequent ventricular arrhythmia during Holter monitoring. A positive correlation between the low ejection fraction of the left ventricle and the intensity of ventricular arrhythmia was observed. In conclusion, among pacemaker user patients, Chagas' disease is related to cardiac markers of worse prognosis. Key-words: Chagas' disease. Pacemaker. Arrhythmia. Telemetry.comprometimento do sistema de condução do coração, por variados tipos de arritmias e sua associação não rara com a morte súbita 13 . A importância do bloqueio atrioventricular na doença de Chagas foi reconhecida desde os estudos iniciais de Chagas e Villela 7 , constituindose ainda hoje uma das mais freqüentes indicações para implante de marcapasso no Brasil.

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Automatic adjustment of pacing output in the clinical setting

Cited by 38 publications

References 15 publications

Atrial Threshold Variability: Implications for Automatic Atrial Stimulation Algorithms

Atrial Threshold Variability: Implications for Automatic Atrial Stimulation Algorithms

Manual vs. automatic capture management in implantable cardioverter defibrillators and cardiac resynchronization therapy defibrillators

Perfil clínico de pacientes chagásicos e não-chagásicos portadores de marca-passo cardíaco artificial

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