PMID- 12044344
OWN - NLM
STAT- MEDLINE
DCOM- 20020626
LR  - 20191210
IS  - 1064-1955 (Print)
IS  - 1064-1955 (Linking)
VI  - 21
IP  - 1
DP  - 2002
TI  - Comparison of Portapres with standard sphygmomanometry in pregnancy.
PG  - 65-76
AB  - BACKGROUND: Continuous beat-to-beat noninvasive blood pressure (BP) measurement 
      is possible with Portapres. It constructs finger arterial waveforms beat-to-beat. 
      Dedicated software is used to analyze the arterial waveforms. A new technique has 
      been developed to reconstruct brachial intra-arterial pressure that uses return 
      to flow (RTF). This method has been validated against invasive intra-arterial 
      measurements in nonpregnant individuals. OBJECTIVES: To validate Portapres in 
      normal and preeclamptic pregnant women against standard aneroid sphygmomanometry 
      according to Riva-Rocci-Korotkoff (RRK). METHODS: In 30 normotensive (10 in each 
      trimester) and 20 preeclamptic women, two trained observers blinded from each 
      other's results took BP measurements with a standard sphygmomanometer. These 
      measurements were compared with sequential same-arm averaged measurements 
      obtained during 30 sec by Portapres, following protocols from the Association for 
      the Advancement of Medical Instrumentation (AAMI, mean accepted difference < or = 
      5 mmHg, SD < or = 8) and British Hypertension Society (BHS, gradings A down to 
      D). RESULTS: A total of 150 measurement pairs were analyzed. Cumulative 
      percentages of absolute pressure differences for all women (BHS) and mean 
      pressure differences (SD) for different trimesters and preeclampsia (AAMI) 
      between sphygmomanometry and Portapres were calculated. Overall, mean difference 
      (SD) for systolic BP was 5 (SD 8) and for diastolic BP was -3 (SD 8), although 
      analysis of variance revealed a significant effect for preeclampsia on diastolic 
      differences between the two methods of BP measurement ( p<0.001). CONCLUSIONS: 
      Portapres with RTF, developed to equal intra-arterial brachial pressure, compares 
      reasonably well to RRK and overall meets the criteria set by the AAMI. According 
      to the BHS, Portapres receives a B-grading for diastolic BP and a C-grading for 
      systolic BP. As Portapres measures BP and calculates cardiac output continuously 
      and noninvasively, it would appear worthwhile to further evaluate this device in 
      pathological pregnancies.
FAU - Hehenkamp, Wouter J K
AU  - Hehenkamp WJ
AD  - Department of Obstetrics, Academic Medical Center, P.O. Box 22660, 1100 DD 
      Amsterdam, The Netherlands.
FAU - Rang, Saskia
AU  - Rang S
FAU - van Goudoever, Jeroen
AU  - van Goudoever J
FAU - Bos, Willem J W
AU  - Bos WJ
FAU - Wolf, Hans
AU  - Wolf H
FAU - van der Post, Joris A M
AU  - van der Post JA
LA  - eng
PT  - Comparative Study
PT  - Journal Article
PT  - Validation Study
PL  - England
TA  - Hypertens Pregnancy
JT  - Hypertension in pregnancy
JID - 9421297
SB  - IM
MH  - Adolescent
MH  - Adult
MH  - *Blood Pressure Determination/instrumentation/standards
MH  - Blood Pressure Monitors/*standards
MH  - Female
MH  - Humans
MH  - Pre-Eclampsia/physiopathology
MH  - Pregnancy
EDAT- 2002/06/05 10:00
MHDA- 2002/06/27 10:01
CRDT- 2002/06/05 10:00
PHST- 2002/06/05 10:00 [pubmed]
PHST- 2002/06/27 10:01 [medline]
PHST- 2002/06/05 10:00 [entrez]
AID - 120002910 [pii]
AID - 10.1081/PRG-120002910 [doi]
PST - ppublish
SO  - Hypertens Pregnancy. 2002;21(1):65-76. doi: 10.1081/PRG-120002910.