Comparative Study of Electrical Stimulation of the Heart with VDD and DDD Pacemakers as to the Evolution to Atrial Fibrillation

Campos, Nelson Leonardo Kerdahi Leite de; Andrade, Rubens Ramos de; Fellicio, Marcello Laneza; Martins, Antônio Sérgio; Garzesi, André Monti; Garcia, Leonardo Rufino; Takeda, Tassya Bueno

doi:10.21470/1678-9741-2017-0505

Cited by 2 publications

(2 citation statements)

References 11 publications

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“…In the incidence study conducted by Campos et al, a minimum period of two months was established as an inclusion criterion, thus avoiding cases of previous asymptomatic AF detected after implantation. 9 As shown in Graph 1, all arrhythmic events were detected after an interval of three months after the implant procedure, which runs in line with the current literature.…”

Section: Discussionsupporting

confidence: 89%

Prevalence of Atrial Fibrillation in Pacemaker Patients

Costa¹,

Santos²,

Schafranski³

2022

International Journal of Cardiovascular Sciences

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Background: Current pacemakers allow for the continuous recording of the occurrence of arrhythmic events. One of the most frequent arrhythmias after implantation of a device is atrial fibrillation (AF), an important risk factor for embolic events. The frequency of this arrhythmia in pacemaker patients has not been widely studied.Objectives: This study aimed to evaluate the prevalence, incidence, and predictors of the occurrence of AF in patients with double-chamber pacemakers and without a history of atrial fibrillation prior to implantation.Methods: A dynamic, retrospective, and prospective cohort study was carried out with 186 patients undergoing biannual follow-up of the double-chamber pacemaker, without previous AF, in a single service, between 2016 and 2018. Clinical data were collected from the medical records and the telemetry of the device and the prevalence, incidence rate, relative risk by univariate analysis (by chi-square), and risk ratio were calculated by multivariate analysis (by Cox regression); values of p<0.05 were considered significant.Results: There was a prevalence of 25.3% FA, with an incidence of 5.64 cases / 100 persons-year. The median time for the development of arrhythmia was 27.5 months. Multivariate analysis identified 5 statistically significant predictors: male gender, OR: 2.54 [1.04-6.15]; coronary artery disease, OR: 2.98 hypothyroidism,; prior heart surgery, OR: 2.67 [1.01-7]; and left atrial enlargement, OR: 2.72 [1.25-5.92]. Conclusion:The prevalence and incidence of AF in this population are high. Risk factors for AF were: male gender, coronary artery disease, hypothyroidism, prior heart surgery, and left atrial enlargement.

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Section: Discussionsupporting

confidence: 89%

Prevalence of Atrial Fibrillation in Pacemaker Patients

Costa¹,

Santos²,

Schafranski³

2022

International Journal of Cardiovascular Sciences

View full text Add to dashboard Cite

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“…Inside the overall population, 4% switched the pacing mode due to permanent AF, a value like the 6.36% found by Nelson de Campos et al, and less than the 10.42% found in DDD group in the same study. 10 We may speculate that this difference in "de novo" AF incidence might be related to atrial lead implantation and subsequent chronic irritation in DDD pacemakers. 4…”

Section: Long-term Performance Of Vdd Pacingmentioning

confidence: 98%

VDD pacemaker: An effective and reliable physiological pacing modality in elderly patients

Martinho

António

Telo

et al. 2023

Pacing Clinical Electrophis

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Background:In elderly patients, single chamber pacing may be considered. For sinus rhythm patients, VDD pacemaker (PM), by preserving atrial sensing, is a more physiological mode than VVI devices. This study aims to evaluate the long-term performance of VDD PM in elderly patients with atrioventricular block (AVB). Methods: We conducted a retrospective, observational study of 200 elderly patients (≥75 years) with AVB and normal sinus rhythm who consecutively implanted VDD PM between 2016 and 2018. Baseline clinical characteristics were analyzed, complications related to pacemaker implantation were assessed and a 3-years follow-up (FUP) was made. Results: Mean age was 84 ± 5 years. After 3-years FUP, 90.5% (n = 181) of the patients preserved their original VDD mode. Only 19 patients (9.5%) switched to VVIR mode, 5.5% (n = 11) due to P-wave undersensing and 4% (n = 8) due to permanent AF. Those patients had a less amplitude of sensed P wave at baseline [median value of 1.30 (IQR 0.99-2.0) versus 0.97 (IQR 0.38-1.68), p = 0.04]. One third of the patients died dur-ing the FUP, 89% (n = 58) from non-cardiovascular causes. All-cause, CV, and non-CV mortality did not relate with atrial sensing loss during FUP (p = 0.58, p = 0.38 and p = 0.80, respectively). However, atrial sensing loss during FUP was associated with de novo atrial fibrillation (12.7% vs. 31.6%, p = 0.038). Conclusion:VDD pacing is a reliable pacing modality in elderly patients even in longterm. The majority of VDD-paced elderly patients maintained their original VDD mode program, with good atrial sensing.

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Comparative Study of Electrical Stimulation of the Heart with VDD and DDD Pacemakers as to the Evolution to Atrial Fibrillation

Cited by 2 publications

References 11 publications

Prevalence of Atrial Fibrillation in Pacemaker Patients

Prevalence of Atrial Fibrillation in Pacemaker Patients

VDD pacemaker: An effective and reliable physiological pacing modality in elderly patients

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