Atrial fibrillation does not affect ankle-brachial index measured using the Doppler method
| Autor: | Zbigniew Gaciong, Jacek Lewandowski, Piotr Abramczyk, Izabela Łoń, Michał Dąbrowski, Maciej Siński |
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| Rok vydání: | 2017 |
| Předmět: |
Male
medicine.medical_specialty Physiology Electric Countershock Blood Pressure 030204 cardiovascular system & hematology 03 medical and health sciences symbols.namesake 0302 clinical medicine Both lower extremities Internal medicine Atrial Fibrillation Internal Medicine Medicine Humans Sinus rhythm Ankle Brachial Index cardiovascular diseases Aged business.industry Atrial fibrillation Blood Pressure Determination Middle Aged medicine.disease Confidence interval Echocardiography Doppler Electrical cardioversion medicine.anatomical_structure Blood pressure cardiovascular system symbols Cardiology Female Ankle Cardiology and Cardiovascular Medicine business Doppler effect 030217 neurology & neurosurgery Blood Flow Velocity |
| Zdroj: | Hypertension research : official journal of the Japanese Society of Hypertension. 41(1) |
| ISSN: | 1348-4214 |
| Popis: | Atrial fibrillation may affect blood pressure measurements. The ankle-brachial index (ABI) is a ratio of systolic blood pressure measured on the lower and upper limbs that may also be affected by arrhythmia. The purpose of the study was to investigate whether atrial fibrillation influenced ABI results. Ninety-nine patients (age 66.6±11 years, 63 males and 36 females) who underwent electrical cardioversion of atrial fibrillation were investigated. ABI measurements using the Doppler method were performed on both lower extremities before and after electrical cardioversion. Measurements were repeated three times and then averaged. The ABI using both lower limbs was lower before electrical cardioversion than after restoration to sinus rhythm (right side: 1.132 (1.065-1.210) during atrial fibrillation vs. 1.179 (1.080-1.242) in sinus rhythm, P=0.019; left side: 1.142 (1.075-1.222) during atrial fibrillation vs. 1.170 (1.098-1.255) in sinus rhythm, P=0.011). However, the upper 95% confidence interval (CI) margins for the median differences in ABI were 0.045 and 0.040 for right and left, respectively, suggesting that the observed difference was clinically insignificant. There was a significant correlation between measurements obtained before and after electrical cardioversion on both lower limbs (r=0.61, P |
| Databáze: | OpenAIRE |
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