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Blood pressure variability in patients with atrial fibrillation
- Publication Year :
- 2014
-
Abstract
- The highly irregular ventricular rate during atrial fibrillation (AF) represents a unique and physiological experimental model to eliminate the influence of rhythmical components of RR variability on arterial pressure variability for investigating the origin of low frequency (LF) component in arterial pressure. Surface ECG, blood pressure and respiratory signals were recorded in thirty patients with persistent AF, at rest and during a passive orthostatic stimulus ("tilt test"). Short-term systolic (SAP) and diastolic arterial pressure (DAP) variability was estimated by autoregressive method. In 15 patients (group A), SAP significantly increased during tilt (from 98±16 to 114±18mmHg, p
- Subjects :
- Male
medicine.medical_specialty
Posture
Blood Pressure
Diastolic arterial pressure
Electrocardiography
Cellular and Molecular Neuroscience
Orthostatic vital signs
Tilt-Table Test
Internal medicine
Atrial Fibrillation
medicine
Humans
Tilt test
Sinus rhythm
In patient
Respiratory system
Aged
Endocrine and Autonomic Systems
business.industry
Respiration
Blood Pressure Determination
Atrial fibrillation
Middle Aged
medicine.disease
Blood pressure
Anesthesia
Cardiology
Female
Neurology (clinical)
business
Subjects
Details
- Language :
- English
- Database :
- OpenAIRE
- Accession number :
- edsair.doi.dedup.....8be1faae9e92a13f0dc1d7c041ff9d24