Microlife AFIB, the Blood Pressure Monitor with Atrial Fibrillation detection.
Atrial Fibrillation (AF) is a growing and urgent public health concern. AF is the most common sustained abnormal heart rhythm worldwide and numbers set to increase. About 20% of strokes occur in patients with AF.
AF often is accompanied by additional risk factors such as hypertension and diabetes mellitus. Therefore, Microlife developed blood pressure monitors with an implemented AF detector – the so-called AFIB technology. This means that AF can be diagnosed during blood pressure measurement without any extra efforts. With the implemented AF detector Microlife follows the latest guidelines of the European Society of Hypertension (ESH) for home blood pressure monitoring.
Microlife AFIB detects AF with high accuracy (on average, sensitivity 98% - specificity 92%) as demonstrated in several comparative studies with ECG.
|Patients (n)||Setting||Average age (y)||Afib n (%)||Non-Afib arrhythmia n (%)||Sensitivity (%)||Specificity (%)|
|Wiesel 2004 1||450||Hospital||69||53 (12)||(+/-25)||100||92|
|Stergiou 2009 2||72||Hospital||71||27 (37)||23 (31)||100||89|
|Wiesel 2009 3||405||Hospital||73||93 (23)||64 (14)||97||89|
|Oxford trial 2013 4||893||Primary care practice||80||100 (11)||n.a||94||90|
|Tripps study 2013 5||139||Home||67||14 (10)||n.a||99*||93*|
|Wiesel 2014 6||199||Hospital||74||30 (15)||n.a.||100||92|
Measurement of blood pressure in patients with AF is considered as difficult and uncertain.7 Even auscultatory measurements obtained with a mercury device, regarded as the gold standard for blood pressure measurement, show large differences between and within different observers in the presence of AF.7 The Microlife BP A100 Plus has proven to be accurate in measuring systolic blood pressure in patients with atrial fibrillation.7
One particular study with the aim to assess the accuracy of the Microlife BP A100 Plus showed the exact same results and highlight the importance of accurate measurements of systolic blood pressure in patients who suffer from atrial fibrillation:
“Since atrial fibrillation affects mainly the elderly population in whom systolic blood pressure carries most of the hypertension induced cardiovascular risk, this device [BP A100 Plus] appears to be suitable for self-home blood pressure monitoring in AF patients.”
G.S. Stergiou, A. Destounis, A. Kollias, D. Tzamouranis, N. Karpettas, P. Kalogeropoulos et al.
 Wiesel J et al, Detection of Atrial Fibrillation using a modified microlife blood pressure monitor. Am J Hypertens 2009: 22-845:852
 Stergiou, G.S., et al., Diagnostic accuracy of a home blood pressure monitor to detect atrial fibrillation. J Hum Hypertens, 2009. 23: p. 654-8.
 Wiesel, J., et al., Detection of atrial fibrillation using a modified microlife blood pressure monitor. Am J Hypertens, 2009. 22: p. 848-52.
 Kearley, K., et al., What is the best way to screen for atrial fibrillation in primary care? A comparison of the accuracy of 3 methods: nurse pulse palpation, a hand-held ECG and a modified BP monitor Submitted, 2013.
 Wiesel, J., et al., Screening for Asymptomatic Atrial Fibrillation While Monitoring the Blood Pressure at Home: Trial of Regular Versus Irregular Pulse for Prevention of Stroke (TRIPPS 2.0). Am J Cardiol, 2013.
 Wiesel J, Arbesfeld B, Schechter D. Comparison of the Microlife blood pressure monitor with the Omron blood pressure monitor for detecting atrial fibrillation. Am J Cardiol 2014;114:1046-8.
 Stergiou GS, Kollias A, Destounis A, Tzamouranis D. Automated blood pressure measurement in atrial fibrillation: a systematic review and meta-analysis. J Hypertens 2012; 30:2074-82.
 Stergiou GS, Destounis A, Kollias A, Tzamouranis D, Karpettas N, Kalogeropoulos P, et al. Accuracy of automated oscillometric blood pressure measurement in patients with atrial fibrillation [abstract]. J Hypertens 2011; 29 (Suppl A):e2.