Reproducibility of electrophysiological parameters of sinus node following autonomic blockade

Alboni, Paoló; Filippi, Laura; Pirani, Roberto; Tomasi, A; Candini, Giancarlo; Masoni, A

doi:10.1016/0167-5273(83)90193-6

Cited by 23 publications

(6 citation statements)

References 24 publications

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“…It has a sensitivity of Ͼ70% in patients with proven sick sinus and a specificity close to 100%, and it is comparable to other protocols (5). The reproducibility of sinus node recovery time assessment is ϳ70% in sick sinus patients, higher in healthy subjects (1,17). Analysis of short-term sinus cycle variations is a new noninvasive screening method, which has been described in detail elsewhere (7,9) and was used together with the recovery time assessment to diagnose sinus node dysfunction.…”

Section: Methods For Defining Study Groupsmentioning

confidence: 99%

Power spectral and Poincaré plot characteristics in sinus node dysfunction

Bergfeldt

Haga

2003

Journal of Applied Physiology

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A salient feature of the normal sinus node activity is its prominent beat-to-beat variability, which shows self-similarity on different time scales (fractal dynamics). However, in patients with sinus node dysfunction, short-term time sinus cycles show exaggerated variability, the characteristics of which have not been analyzed. Therefore, Poincaré plots and power spectral analysis were applied to short-term variations of sinus cycles in 30 patients with and 30 patients without sinus node disease. Three patterns of behavior were observed in sick sinus patients: type 1, completely normal (n = 3); type 2, randomlike pattern in the Poincaré plots with "white noise" power spectra (n = 9); and type 3, a transitional pattern, characterized by remnants of normal behavior mixed with scattered points (n = 18). In control subjects, only type 1 (n = 27) and type 3 (n = 3) patterns were observed, P < 0.0001. The power spectral changes in sinus node dysfunction are thus characterized by a loss of the inverse power law relationship, which both has implications for heart rate variability analysis and might offer a new diagnostic approach.

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Section: Methods For Defining Study Groupsmentioning

confidence: 99%

Power spectral and Poincaré plot characteristics in sinus node dysfunction

Bergfeldt

Haga

2003

Journal of Applied Physiology

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“…There is no generally accepted protocol for evaluating sinus node function. SACT cannot always be assessed in patients with proven sinus node disease [160] , and recovery time assessment is therefore usually preferred. A prolonged sinus node recovery time reflects abnormal sinus node automaticity, sino-atrial conduction, or both [161] (Table 2.5).…”

Section: Task Force Report 1273mentioning

confidence: 99%

Guidelines on management (diagnosis and treatment) of syncope

Brignole¹,

Alboni²,

Benditt

et al. 2001

European Heart Journal

677

432

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“…There is no generally accepted protocol for evaluating sinus node function. SACT cannot always be assessed in patients with proven sinus node disease [170], and recovery time assessment is therefore usually preferred. A prolonged sinus node recovery time reflects abnormal sinus node automaticity, sinoatrial conduction, or both [171].…”

Section: Suspected Intermittent Bradycardiamentioning

confidence: 99%

Guidelines on Management (diagnosis and treatment) of syncope ? update 2004

2004

Europace

520

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Reproducibility of electrophysiological parameters of sinus node following autonomic blockade

Cited by 23 publications

References 24 publications

Power spectral and Poincaré plot characteristics in sinus node dysfunction

Power spectral and Poincaré plot characteristics in sinus node dysfunction

Guidelines on management (diagnosis and treatment) of syncope

Guidelines on Management (diagnosis and treatment) of syncope ? update 2004

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