Baroreflex Sensitivity in Patients With Atrial Fibrillation.
J Am Heart Assoc
; 9(24): e018019, 2020 12 15.
Article
em En
| MEDLINE
| ID: mdl-33263265
ABSTRACT
Background It has been reported that atrial fibrillation (AF) may contribute to impairment of baroreflex sensitivity (BRS). However, the difference of BRS between patients with persistent AF (PeAF) and those with paroxysmal AF (PAF) is unknown. We tested the hypothesis that patients with PeAF have a more impaired BRS compared with those with PAF. Methods and Results From October 2015 onwards, a total of 67 patients (14 women [20.9%]; mean age 65.2±10.1 years) with PAF (n=46, 68.7%) and PeAF (n=21, 31.3%), who underwent catheter ablation, were prospectively enrolled. The baseline BRS was evaluated during sinus rhythm. The baseline BRS in patients with PeAF was significantly lower than those with PAF (2.97 [0.52-6.62] ms/mm Hg versus 4.70 [2.36-8.37] ms/mm Hg, P=0.047). The BRS was significantly depressed after catheter ablation in all the patients (4.66 [1.80-7.37] ms/mm Hg versus 0.55 [-0.15 to 1.22] ms/mm Hg, P<0.001). However, the depression of BRS because of catheter ablation appeared attenuated in patients with PeAF when compared with those with PAF. The number of patients who did not show depression of BRS was significantly greater, that is, patients with PeAF (3/12, 25%) than those with PAF (0/46, 0%, P<0.01). Conclusions Our findings demonstrated that the baseline BRS was more depressed in patients with PeAF compared with PAF. Catheter ablation depressed BRS irrespective of the type of AF, with a greater effect in patients with PAF than PeAF.
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Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Veias Pulmonares
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Fibrilação Atrial
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Síndrome do Nó Sinusal
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Ablação por Cateter
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Barorreflexo
Tipo de estudo:
Diagnostic_studies
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Observational_studies
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Prognostic_studies
Limite:
Aged
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Female
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Humans
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Male
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Middle aged
Idioma:
En
Ano de publicação:
2020
Tipo de documento:
Article