IB WatchBP Office Central
Contents
1. WHO ESH AHA Protocol Embedded WatchBP Office Central Cardiovascular Screening Solution for Central blood pressure measurement Ankle Brachial Index assessment Atrial fibrillation detection Simultaneous assessment of the Inter Arm Blood Pressure Difference Instruction Manual H gt o microlife Preface The WatchBP Office Central has been validated against simultaneous recorded intra arterial blood pressure measurement which is the gold standard for validation of central blood pressure measurement and showed extreme high accuracy The WatchBP central has passed the validation protocol of the BHS for accuracy in blood pressure measurement A A and is equipped with innovative screening tools such as An implemented atrial fibrillation Afib detection system that has proven excellent accuracy and is officially recommendation by the National Institute of Clinical health and Excellence NICE in the UK Two arm cuffs that allow simultaneous blood pressure measurement of both arms for accurate determination of inter arm blood pressure differences This mode is highly supported by the latest ESH guidelines 2013 stating that Inter arm difference in blood pressure is only meaningful when obtained from simultaneous arm blood pressure measurement e Ankle brachial index ABI performance that is validated against Doppler for accuracy with positive results and additionally showed2. N e Ensure that children do notuse the device unsupervised some parts are small enough to be swallowed WU UK Protect the device from extreme heat and cold e Only activate the pump when the cuff is installed Avoid proximity to electromagnetic fields such as those produced by mobile phones e Donotuse the device if you think itis damaged or if anything appears unusual e Read the further safety instructions in the individual Never open device sections of the instruction manual y vU e Donotconnectthe device to a computer until prompted to Protect device from impact and drops do so by the computer software 36 EN Device care Clean the device with a soft dry cloth Accuracy test We recommend the WatchBP Office Central device be tested for accuracy every 2 years or after mechanical impact e g being dropped Please contact Microlife to arrange for an accuracy test Cleaning the cuff DO NOT wash the cuff DO NOT iron the cuff cover we Do not wash the cuff AA Do not iron the cuff Disposal X Batteries and electronic instruments must be disposed of in accordance with the locally mmmm applicable regulations and not as domestic waste 37 microlife Technical specifications Operation temperature humidity 10 to 40 C 50 to 104 F Storage temperature humidity e 20 to 55 C 4 to 131 F Weight Dimensions Measuring method Measurement range
3. Mean Arterial Pressure MAP Value for Left Arm Pulse Pressure PP l 3 wA Mode Indication ERES r External Power E a Atrial Fibrillation Detection Sa MAP ye Central Systolic Pulse Pressure ae X GOO cpp P K L ML wo Inter arm Difference m lt Ger EI x9 amp R V alue for Right Arm Supine Position Reminder sna PP E i 3 Hide Display al Memory Mode INDEX MAP Systolic Value Diastolic Value Systolic Value on Diastolic Value ABI indicator and Pulse Rate 1 L cir Battery Symbol Components and accessories microlife AC Adaptor X1 Input 100 240V 50 60Hz 0 48A Output 7 5V 2A WatchBP Office Central Blood Pressure Device Cuff for upper arm M L size 22cm 42cm X2 Cuff for ankle M size 22cm 32cm X 1 Instruction Manual Quick Start Guide 5 microlife Before using WatchBP Office Central WatchBP Office Central Selecting the correct cuff Fitting the cuff properly Two upper arm cuffs and an ankle cuff are provided within the 1 Place the cuff over the left or right upper arm so that standard package of the WatchBP Office Central the air tube and artery mark arrow point towards the lower arm M L Medium Large size arm cuff 2 Wrap the cuffaround the arm Make sure that the nim 22 42 cm 8 7 16 5 inches lower edge of the cuff lies approxi
4. 17 ABl mode sees 18 19 WatchBP Office Central Special Functions Central blood pressure sess 20 Central pulse pressure esee 20 Mean arterial pressure and pulse pressure 21 Appearance of the atrial fibrillation indicator 22 About atrial fibrillation sssssss 23 Inter arm difference IAD sss 23 ABI Ankle Brachial Index ssss 24 Hiding measurement values ssss 25 Viewing and transferring measurement data In SCREEN mode eee 26 In CENTRAL mode esee 27 In ABl mode eee 28 Appendix Rechargeable battery and power adaptor 30 Troubleshooting eere 31 EITOPIIISSSHOBS uissivtetiincun Rn UInEn a usi UU nud 32 34 Safety care accuracy test and disposal 35 36 Technical specifications sess 37 Product description Name of parts I O switch Main Adaptor Socket Battery Compartment Cuff Socket L Serial Port Recharge Indicator Display M Button Memory Mode Switch Start Stop Button 3 microlife WatchBP Office Central Display
5. Cuff pressure display Voltage source e15 90 relative maximum humidity e 1100 g including rechargeable battery pack e200 x 125 x90 mm e Oscillometric corresponding to Korotkoff 30 280 mmHg blood pressure e40 200 beats per minute pulse e Range 0 299 mmHg e Resolution 1 mmHg e Static accuracy pressure within 3 mmHg e Pulse accuracy 5 9o of the readout value e Rechargeable battery pack 4 8V C3500 mAh Mains adapter DC 7 5V 2A Reference to Standards Electromagnetic compatibility C 0044 WatchBP Office Central Device corresponds to the requirements of the standard for non invasive blood pressure monitor EN 1060 1 EN 1060 3 EN 1060 4 IEC 60601 1 IEC 60601 1 2 e Device fulfills the stipulations of the standard IEC 60601 1 2 The stipulations ofthe EU Directive 93 42 EEC for Medical Devices Class lla have been fulfilled Type BF applied part Microlife reserves the right to alter technical specifications without prior written notice Guarantee card This device is covered by a two year guarantee and Name accessories are cover by a one year guarantee Addes from the date of purchase This guarantee is valid only on presentation of the guarantee card completed by the owner confirming date of Date purchase or purchase receipt Telephone E mail Product WatchBP Office Central Product Number TWIN200 CBP Date 39 microlife Europe Middle East Afr
6. i When the last measurementis performed in SCREEN 10 ec cep e o Eg mode press the lt lt M gt gt button to display the average of seconds Ey E n H4 H three measurements we n ri ri ri ng v no i oe i 3 Viewing individual measurements All individual ES b ceu ie readings can be viewed by repeatedly pressing An SR ir the lt lt M gt gt button The display will flash a number a m before the reading to indicate the sequence of the 7 Lt ri H ng Cu measurement 2 Viewing MAP and PP values 9C3 C 9Ch Ten seconds after the display of the average blood pressure value the device displays values for Pulse 4 Values of the individual measurement including PP Pressure PP and Mean Arterial Pressure MAP and MAP values will be displayed in the order listed in step 2 26 EN Viewing and transferring measurement data cont CENTRAL mode 1 Viewing the average of all measurements When the last measurement is performed in CENTRAL mode press the lt lt M gt gt button to display the average of two measurements in the CENTRAL mode em am Je 56 OQ Sex ur G ua p av Pi ey Lr A 65 m t ES5 ta 2 Viewing MAP PP central systolic blood pressure CBP and central pulse pressure CPP values The device switches the display for the average blood pressure Pulse Pressure PP Mean Arterial Pressure MAP central systolic blood pressure CBP and c
7. Hypertension ESH and of the European Society of Cardiology ESC J of Hypertens 2013 31 1281 1357 8 Kollias A et al Automated determination of the ankle brachial index using an oscillometric blood pressure monitor validation vs Doppler measurement and cardiovascular risk factor profile Hypertens Res 2011 34 825 30 9 Verberk W J et al Automated oscillometric determination of the ankle brachial index a systematic review and meta analysis Hypertens Res 2012 35 883 91 microlife Table of Contents Product description Name of parts and display sssse 3 4 Components and accessories ssss 5 Before using WatchBP Office Central Selecting and fitting the correct cuff 6 Selective Cuffs for upper arm and ankle 7 Application of the ankle cuff ssses 8 Three operation modes ABI mode ice cett Dp ID Ner EGRE UA erp CHE PNE 9 CENTRAL mode sene 10 SCREEN mode l 11 12 Taking measurements using WatchBP Office Central SCREEN mode sese 13 14 Taking less than three measurements 14 CENTRAL mode sss 15 16 Skipping the countdown time 17 Setting measurementintervals
8. the recharge indicator turns to green ce An orange recharge indicator means recharge in progress cg Agreen recharge indicator means recharge is completed Using a power adaptor Please only use the Microlife adaptor supplied with the device to recharge the device 1 Plugthe adapter cable into the Power Plug ofthe WatchBP Office Central device 2 Plugthe adaptor plug into the wall socket When the power adaptor is connected no battery power is consumed 31 microlife Troubleshooting WatchBP Office Central Problem Possible cause How to make correction Nopower NoLCDdisplay Power supply is not properly Plug power supply into the wall socket plugged in Battery is fully discharged Recharge the rechargeable battery by plugging in the power supply Cuff does not inflate properly Loose connection of the tube Make sure the tube of the cuff is securely connected to the device Leakage of the tube or Check for cracks on the tube or the bladder Please contact bladder Microlife customer service for this issue No result displayed between The Hide function is activated Disable hide function measurements 2 By Error messages If an error occurs during measurement the measurement is interrupted and an error message Err is displayed c amp Please contact your local Microlife service center if the error persists f m m cg Ifyou think the results are unusu
9. 1 Turn on the power Turn on the device by switching the On Off switch at the back of the device to the ON position AIL ABI CENTRAL SCREEN 4 Inflation by fuzzy logic The device will adjust inflation pressure by fuzzy logic technology in order to determine the optimal inflation pressure 5 Start measurements Press the Start Stop button to startthe measurement sequence 2 Apply the cuff Properly fit one cuff to each of the patient s arms i rr exm NUS Eu ri S 60 second cT d countdown 2 A a i c Additional visual instruction can be found on the cuff 13 microlife WatchBP Office Central 6 Three consecutive measurements The device will Taking less than three measurements take three consecutive measurements with one minute The measurement procedure can be stopped at anytime intervals between measurements by pressing the Start Stop button in SCREEN mode The device enters Standby mode and the remaining 60 1 60 2 60 3 measurements are cancelled The average of the seconds C Dae C Poss M measurements is saved and can be viewed by pressing the lt lt M gt gt button lt A 60 second countdown before each measurement u Cancel remaining 7 The average measurement value The average p Measurement dran ume blood pressure value will be displayed after the during the measurement measurements SEMUCHICE I gt EE zu 008 aa cS fone of the three measurements fai
10. Z x sew ot sa ot ham an LC xe ON a WatchBP Office Central Alow ankle brachial index ABI is indicative of systemic vascular disease and places a patient in the high risk category 24 By Special Function cont Hiding measurement values The WatchBP Office Central features a Hide function in order to prevent unnecessary elevated blood pressure in patients due to nervousness triggered by visible blood pressure values 1 L0 C This feature is available in both SCREEN mode and CENTRAL mode cg When the Hide function is ON only the average values are displayed after the consecutive measurements and the Hide icon is displayed 1 Activate the Hide Function Press lt lt M gt gt button L or R flashes keep pressing and hold the lt lt M gt gt button for 7 more seconds until On or Off flashes amp LorRflashes B Press and hold for 7 seconds 2 Select ON or OFF Press the lt lt M gt gt button again to turn the Hide function ON or OFF 3 Confirm Press Start Stop to confirm the setting O a Cs The default setting of Hide is set at ON in both SCREEN mode and CENTRAL X z 2 MIZ MZ Z x nm Pd ow Ltn 25 microlife Viewing and transferring measurement data WatchBP Office Central SCREEN mode Lc tar SCREEN al D 1 Viewing the average of all measurements n i
11. al please read through the information in this instruction manual carefully JN NC Error Description Potential cause and remedy Err1 Signaltooweak The pulse signals on the cuff are too weak Re position the cuff and repeat the measurement Err2 Error signal During the measurement error signals were detected by the cuff caused for instance by movement or muscle tension Repeat the measurement keeping your arm still 33 microlife Error messages WatchBP Office Central Err3 No pressure in the cuff An adequate pressure cannot be generated in the cuff Aleak may have occurred Replace the batteries if necessary Repeat the measurement Err5 Abnormal result The measuring signals are inaccurate and no result can therefore be displayed Read through the checklist for performing reliable measurements and then repeat the measurement Err11 Signaltooweak The pulse signals on the cuff during Central are too weak Re position blood pressure thecuffand repeat the measurement measurement Err12 Error signal During the measurement during Central blood pressure measurement error signals were detected by the cuff caused for instance by movement or muscle tension Repeat the measurement keeping your arm still Bg Err13 Cuff pressure errors during Central blood pressure measurement Err15 A
12. ase see Setting measurement intervals at page 17 10 BM Three operation modes cont SCREEN mode Select SCREEN mode to perform fully automated triple measurements on both arms R Protocol Embedded Protocol Embedded J MENS ABI CENTRAL SCREEN Simultaneous dual arm measurements In SCREEN mode the WatchBP Office Central device measures the patient s blood pressure on both arms simultaneously for determining the arm with the highest blood pressure value and revealing the possible presence of peripheral arterial disease This procedure is recommended bythe ESH and AHAto perform at a patient s first visit to the GP s practice or hospital 11 microlife WatchBP Office Central Automated triple measurements In SCREEN mode the WatchBP Office Central device automatically takes three consecutive measurements on both arms at fixed one minute intervals After the last measurement the average of three blood pressure values is displayed on the LCD screen e B60 seconds C 60 seconds Bj G cs The measuring intervals are fixed at one minute in lt lt SCREEN gt gt mode The interval time can be shortened by pressing the Start Stop button during the countdown period cg The arm with the higher blood pressure value should be taken for ABI measurement or future blood pressure measurements 2 B Taking blood pressure measurements SCREEN mode 3 Switch to SCREEN mode
13. bnormal result of Central blood pressure reading An adequate pressure cannot be generated in the cuff Aleak may have occurred Check if the cuff is correctly connected and is not too loose Replace the batteries if necessary Repeat the measurement The measuring signals are inaccurate and therefore no result can be displayed Read through the checklist for performing reliable measurements and then repeat the measurement HI Pulse or cuff The pressure in the cuff is too pressure too high over 300 mmHg OR high the pulse is too high over 200 beats per minute Relax for5 minutes and repeat the measurement LO Pulse too low The pulse is too low less than 40 beats per minute Repeatthe measurement 35 microlife Safety care accuracy test and disposal WatchBP Office Central Read the instruction manual carefully before using this device especially the safety instructions and keep the instruction manual for future use Safety and protection Observe the storage and operating conditions described in This device may be used only for the purpose described in the Technical specifications section of this manual this booklet The device comprises of sensitive components and must be treated with caution The manufacturer cannot be held liable for damage caused by incorrect application dA Protect the device from water and moisture Protect the device from direct sunlight
14. cable supplied click On setup exe in the CD s directory alternatively 2 Asuccessful connection is displayed by Connected 2 Follow the instructions provided in the installation on the computer screen window on the computer screen 3 Enter identity number Patient Name and Surname to 3 When the installation is finished be sure to restart create a new record the computer before you start working with the program pui x System Requirements 550MHz CPU eee h 256MB Memory 1024x768 pixel O resolution 256 color CD ROM drive a 1 free USB port 40MB free hard disk R P space Microsoft Windows XP Vista eee Win7 S Jeapmanialean barcund in tiectatimenlcrihe amp Software can also be downloaded from the website computer www watchbp com 29 microlife WatchBP Office Central Software commands Refer to the software user manual for detailed information and instructions Perform ameasurement Click Measure Stop ameasurement Click Stop Store data Click Save Close Click Close Please read the software manual to know more details of the software operation commands 30 Appendix Rechargeable Battery The device is equipped with a built in rechargeable Ni MH battery pack which delivers up to 400 500 measurement cycles The batteries can be recharged while the power adaptor is plugged in It does not affect the measurement ce First time use charge the batteries until
15. central blood pressure monitor a validation report for Microlife WatchBP Office Central Am J Hypertens 2013 26 42 50 20 By Special Function cont Mean Arterial Pressure MAP The WatchBP Office Central device measures the true mean arterial pressure MAP Each measurement includes a single MAP value The average measurement will display the average MAP value When viewing in Memory mode the MAP value will be displayed with the systolic and diastolic pressure once every 5 seconds cc we OE ii a ud Pulse Pressure PP This measurement device provides the pulse pressure PP of the patient pulse pressure systolic diastolic pressure Each measurement includes the calculation of a single PP value The average measurement will display the average PP value When viewing in Memory mode the PP value will be displayed with the systolic diastolic pressure once every 9 seconds PP QN bs ua m5 Li UU cs The Mean Arterial Pressure MAP in this device is determined from the maximum peak ofthe oscillometric envelope curve 21 microlife WatchBP Office Central Appearance of the atrial fibrillation Afib indicator Afib Detector for early detection The device can screen for atrial fibrillation during blood The WatchBP Office Central is designed to screen for pressure measurement asymptomatic atrial fibrillation during blood pressure Occasionally the device might falsely d
16. e by switching 4 Apply the cuff Properly fit the arm cuff to the upper the On Off switch at the back of the device to the ON arm and the ankle cuff to the leg of the preferred position measurement side of the body The preferred arm is the arm with the higher blood pressure value which can be determined in SCREEN mode 5 Make sure the upper arm cuff is connected to the left cuff socket and the ankle cuff is connected to the right cuff 2 Switch to ABl mode socket 3 The supine position reminder will display to notify that the patient must lie down ri eZ Lt Me 91 ABI AL SCREEN Lt ce Additional instruction can be found on the cuff 10 BM Taking blood pressure measurements cont 6 Start the measurement Press the Start Stop button to start the measurement T Inflation by fuzzy logic The device will adjust inflation pressure automatically by fuzzy logic technology 8 Display ofthe measurement values The measurement values will be displayed and the Ankle brachial index is automatically calculated when the measurement is completed The Ankle brachial index and the blood pressure value display first the brachial index value is replaced by the pulse value for 3 seconds All the values are saved automatically NC a 4m e ym a om LS Ve i n v ow ih UL mal co m a Ct E LP ala 19 microlife Special Functions Central blood press
17. entral pulse pressure CPP automatically 3 Viewing individual measurements All individual readings can be viewed by repeatedly pressing the lt lt M gt gt button The display will show a number before the reading to indicate the measurement sequence 1 9739 9C 4 The device switches the display for values of the individual measurement including PP MAP CBP and CPP values 27 microlife WatchBP Office Central ABI mode 3 Viewing MAP and PP values 1 Whenthe last measurementis performed in ABI mode Ten seconds after display ofthe average blood pressure press the lt lt M gt gt button to display the result of the ABI value the values for Pulse Pressure PP and Mean measurement Arterial Pressure MAP are displayed 2 Viewingthe Ankle brachial index ABI rr Atfirstthe INDEX icon the ABI and the blood pressure E Ks 4 ul values will be displayed mt E E LE l al ul Lt Et Ln UL Et Lt m in VUL E Lt Lt Ll c There is only one set of memory capacity in the device Only the last measurements will be saved in the memory cg The memory will be deleted when the power is turned off 28 EN Viewing and transferring measurement data cont Transferring measurement data Installation of the software program Transferring data to the computer 1 Start the software program and connect the device to 1 Putthe CD in the CD ROM drive of your computer or the computer using the
18. etect atrial measurements in SCREEN mode If two out of three fibrillation which can have two causes measurements in SCREEN mode detect atrial fibrillation the Afib icon is displayed This device is able to detect atrial fibrillation with high accuracy a sensitivity of 97 and a specificity of 89 1 2 1 The arm has moved during blood pressure measurement For this reason itis of essential importance to keep the arm still during the measurement 2 Some arrhythmia irregular heart beat other than atrial fibrillation might be present In such case it may still be useful to pay a visit to the doctor amp Wiesel J et al Detection of atrial fibrillation using a modified Microlife lt This device detects atrial fibrillation a major cause of stroke blood pressure monitor Am J Hypertens 2009 22 848 52 Not all risk factors for stroke including atrial flutter may be amp Stergiou GS et al Diagnostic accuracy of a home blood pressure detected by this device monitor to detect atrial fibrillation J Hum Hypertens 2009 23 654 8 amp This device may not detect atrial fibrillation in people with pacemakers or defibrillators 2 By Special Function cont About atrial fibrillation Atrial fibrillation is a common heart rhythm problem It affects more than 2 million people in North America Itis more common in older age and it is found in 18 individuals aged 85 years and older It is a common cause of
19. hree operation modes ABl CENTRAL and SCREEN Use the Mode Switch to select the desired mode m ABI CENTRAL SCREEN ABI mode Select ABl mode for Ankle Brachial measurement Select the arm with the higher blood pressure value as determined with the SCREEN mode Protocol Embedded Protocol Embedded pt ABI CENTRAL SCREEN 9 microlife CENTRAL mode Select CENTRAL mode to perform central blood pressure measurements on the preferred arm for prompt and accurate office measurements JIL ABI CENTRAL SCREEN Automated duplicate measurements In CENTRAL mode the WatchBP Office Central device automatically takes two consecutive measurements at 15 WatchBP Office Central second intervals on default Ateach measurement brachial blood pressure is measured first thereafter the cuff pressure will be hold around 60 mmHg for 30 seconds for assessing the central blood pressure value the readings of the two brachial blood pressure values are averaged and displayed and the readings ofthe two central blood pressure values are averaged and displayed after the measurement process is finished For verifying each measurement separately press the lt lt M gt gt button to see the 2 measurement press the lt lt M gt gt button again to see the 1 measurement Ci i 15seconds C3 c amp The user can manually set measurement intervals of 15 30 45 or 60 seconds in CENTRAL mode Ple
20. ica aud Microlife AG Espenstrasse 139 9443 Widnau Switzerland Tel 4171 727 7000 Fax 4171 727 7011 Email watchbp microlife ch www watchbp com Asia Microlife Corporation 9F 431 RuiGang Road NeiHu Taipei 114 Taiwan R O C Tel 886 2 8797 1288 Fax 886 2 8797 1283 Email watchbp microlife com tw www watchbp com WatchBP Office Central North Central South America Microlife Medical Home Solutions Inc 2801 Youngfield St Suite 241 Golden CO 80401 USA Tel 1 303 274 2277 Fax 1303 274 2244 Email watchbp mimhs com www watchbp com IB WatchBP Office Central EN 2713 40 EN
21. l a 4 measurement will be EH 9 conducted mec S C amp 7 t eR qu que ver Fr lt Ifthe 3 measurements is cancelled by pressing the Start 2 P Stop after the 2 measurement the averages are calculated nao vu L qct and saved to the memory as well Press the lt lt M gt gt button to display the average value Press the lt lt M gt gt button again to see the 2nd and 1st measurement again BM Taking blood pressure measurements cont CENTRAL mode 3 Switch to CENTRAL mode 1 Turn on the power Turn on the device by switching the On Off switch at the back of the device to the ON position I SN JIL ABI CENTRAL SCREEN 2 Apply the cuff Properly fit one cuff to the preferred 4 Select the preferred measurement arm Left or measurement arm Right Press and hold the lt lt M gt gt button for 3 seconds Press and hold for 3 seconds c Additional visual instruction can be found on the cuff 15 microlife 9 Press the lt lt M gt gt to switch between left L and right R Press the Start Stop button to confirm _ e L swith B e7 R 6 Start measurements Press the Start Stop button to start the measurements 15 second countdown an WatchBP Office Central 7 Automatic two measurements The device will take two consecutive measurements with 15 second intervals in between on default Ci i 15 seconds C3 8 Inflation by fuzzy
22. logic The device will adjust inflation pressure by fuzzy logic technology 9 The average value of the measurements The average values of both the brachial and central blood pressure will be displayed and stored automatically cs The measurement intervals can be set to 15 30 45 or 60 seconds in CENTRAL mode Please See Setting up measurement intervals on page 17 16 BM Taking blood pressure measurements cont Skipping the countdown time The countdown time before measurement in SCREEN mode and CENTRAL mode can be skipped by pressing the Start Stop button While the Start Stop button is pressed the next measurement begins immediately oO The device can be set into Standby mode by pressing the Start Stop button after the completion of measurements The device will automatically switch to Standby mode if left unattended for five minutes o Skip the countdown time and begin measurement Standby mode Setting measurement intervals in CENTRAL mode 1 Pressandhold the Start Stop button for 3 seconds o 2 Press the lt lt M gt gt button to adjust the measurement interval then press the Start Stop button to confirm Press and hold for 3 seconds cee 5 50 15130 M ce The default measurement interval is 15 seconds The interval can be set as 15 30 45 or 60 seconds 17 microlife WatchBP Office Central ABI mode 1 Turn onthe power Turn on the devic
23. major strokes About 15 of all strokes are caused by atrial fibrillation The elderly or those with high blood pressure diabetes or heart disease are more likely to get a stroke if they have atrial fibrillation Atrial fibrillation is a rhythm problem that can last from a few minutes to days or weeks and even years Atrial fibrillation can cause blood clots in the upper chambers of the heart the atria These clots can break off and flow to the brain causing a stroke With the right treatment the chance of stroke can be reduced by two thirds Determine the proper arm and inter arm difference Ifthe blood pressure difference between two arms is more than 20mmHg for Systolic or 10mmHg for Diastolic at all three measurements the device indicates the arm with the higher blood pressure value by displaying Lor R and the IAD icon The IAD icon and readings of the higher arm flash to indicate that more attention is needed as this patient might have peripheral arterial disease Cut 4 a IAD m 7 L pe 0 7t zi Le 23 microlife ABI Ankle Brachial Index The systolic blood pressure values of a person s arm and leg need to be measured In order to determine ABI Ankle Brachial Index The ankle brachial index ABI is then calculated using the quotient of the systolic pressure value from the leg measurement and the systolic pressure value from the arm measurement ABI a alle na a Z ee as EO ll
24. mately 2cm 74 inch With airtube 130 cm above the elbow M Medium size ankle cuff 22 32 cm 12 6 16 5 inches With air tube 130 cm Connect the cuff to the device by inserting the cuff connector into the cuff connector socket c8 Remove all clothing covering or constricting the measurement arm before applying the cuff Selective Cuffs for upper arm and ankle For upper arm Rigid cuff M L Medium Large size standard delivered 22 42 cm 8 7 16 5 inches With air tube 130 cm For ankle M Medium size standard delivered L Large size to be ordered 22 32 cm 8 7 12 6 inches 32 42cm 12 6 16 5 inches With air tube 200 cm With air tube 200 cm C Please contact Microlife or its distributor to purchase L XL size or other size cuffs 7 microlife Application of the ankle cuff in ABI mode 1 The patient has to lie down in supine position 2 Place the ankle cuff on the leg Make sure the edge of the ankle cuff lies approximately 2 to 3cm to 1 inch above the ankle and notice that the artery mark is on the posterior tibial artery posterior tibial artery WatchBP Office Central 3 Wrap and tighten the cuff around the leg 4 Leavealittle free space between the leg of the patient and the cuff Two fingers should fit between the leg and the cuff 2 3 cm 3 4 to 1 inch Select an operation mode The WatchBP Office Central device includes t
25. that the assessment led to a significant time reduction as compared to Doppler Finally the automated calculation of the ABI value guarantees uniformity and prevents errors due to registration and calculation failures 1 Cheng H M etal MeasurementAccuracy of a Stand Alone Oscillometric Central Blood Pressure Monitor A Validation Report for Microlife WatchBP Office Central Am J Hypertens 2013 26 42 50 2 Stergiou G S etal Diagnostic accuracy of a home blood pressure monitor to detect atrial fibrillation J Hum Hypertens 2009 23 654 8 3 Wiesel J etal Detection of atrial fibrillation using a modified microlife blood pressure monitor Am J Hypertens 2009 22 848 52 4 NICE WatchBP Home A for opportunistically detecting atrial fibrillation during diagnosis and monitoring of hypertension http quidance nice org uk MT G 13 2013 5 Lohmann F W et al Interarm differences in blood pressure should be determined by measuring both arms simultaneously with an automatic oscillometric device Blood Press Monit 2011 16 37 42 6 Stergiou G S etal Automated device that complies with current guidelines for office blood pressure measurement design and pilot application study of the Microlife WatchBP Office device Blood Press Monit 2008 13 231 5 7 Mancia G et al 2013 ESH ESC Guidelines for the management of arterial hypertension The Task Force for the management of arterial hypertension of the European Society of
26. ure Central blood pressure is the pressure in the ascending aorta the largest artery that originates from the left ventricular of the heart and from where oxygen is distributed to all parts of the body through the systemic circulation How is central blood pressure measured The WatchBP Office Central uses brachial pulse volume plethysmography PVP waveforms to determine central blood pressure The WatchBP Office Central is designed to perform PVP at a cuff pressure of 60 mmHg Based on the analysis of PVP waveforms the central systolic blood pressure CBP value and the central pulse pressure value CPP are determined WatchBP Office Central Accuracy of the WatchBP Office Central The accuracy of central blood pressure measurement performed with an automated oscillometric device can only reliably be determined against intra arterial blood pressure measurement The WatchBP Office Central has been validated against simultaneous recorded intra arterial blood pressure measurement in 85 subjects and showed high accuracy Central Pulse Pressure CPP Central Pulse Pressure by this monitor is estimated directly through pulse volume plethysmography PVP waveform analysis 1 Sung S H etal Measurement of central systolic blood pressure by pulse volume plethysmography with a noninvasive blood pressure monitor Am J Hypertens 2012 25 542 8 2 Cheng H M etal Measurement accuracy of a stand alone oscillometric
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