Τίτλος:
Comparison of noninvasive oscillometric and intra-arterial blood pressure measurements in hyperacute stroke
Γλώσσες Τεκμηρίου:
Αγγλικά
Περίληψη:
OBJECTIVES: This study aims to compare automatic oscillometric blood pressure recordings with simultaneous direct intra-arterial blood pressure measurements in hyperacute stroke patients to test the accuracy of oscillometric readings. METHODS: A total of 51 first-ever stroke patients underwent simultaneous noninvasive automatic oscillometric and intra-arterial blood pressure monitoring within 3 h of ictus. Casual blood pressure was measured in both arms using a standard mercury sphygmomanometer on hospital admission. Patients who received antihypertensive medication during the blood pressure monitoring were excluded. RESULTS: The estimation of systolic blood pressure (SBP) using oscillometric recordings underestimated direct radial artery SBP by 9.7 mmHg (95% confidence interval: 6.5-13.0, P<0.001). In contrast, an upward bias of 5.6 mmHg (95% confidence interval: 3.5-7.7, P<0.001) was documented when noninvasive diastolic blood pressure (DBP) recordings were compared with intra-arterial DBP recordings. For SBP and DBP, the Pearson correlation coefficients between noninvasive and intra-arterial recordings were 0.854 and 0.832, respectively. When the study population was stratified according to SBP bands (group A: SBP≤160 mmHg; group B: SBP>160 mmHg and SBP≤180 mmHg, group C: SBP>180 mmHg), higher mean ΔSBP (intra-arterial SBP-oscillometric SBP) levels were documented in group C (+19.8 mmHg, 95% confidence intervals: 12.2-27.4) when compared with groups B (+8.5 mmHg, 95% confidence intervals: 2.7-14.5; P=0.025) and A (+5.9 mmHg, 95% confidence intervals: 1.8-9.9; P=0.002). CONCLUSION: Noninvasive automatic oscillometric BP measurements underestimate direct SBP recordings and overestimate direct DBP readings in acute stroke. The magnitude of the discrepancy between intra-arterial and oscillometric SBP recordings is even more prominent in patients with critically elevated SBP levels. © 2007 Lippincott Williams & Wilkins, Inc.
Συγγραφείς:
Manios, E.
Vemmos, K.
Tsivgoulis, G.
Barlas, G.
Eleni, K.
Spengos, K.
Zakopoulos, N.
Περιοδικό:
Blood Pressure Monitoring
Λέξεις-κλειδιά:
mercury, aged; article; autoanalysis; blood pressure monitoring; clinical trial; confidence interval; controlled clinical trial; controlled study; correlation coefficient; diagnostic accuracy; diagnostic error; diagnostic value; diastolic blood pressure; female; hospital admission; human; hypertension; intermethod comparison; major clinical study; male; non invasive measurement; oscillometry; priority journal; radial artery; sphygmomanometer; stroke; systolic blood pressure, Aged; Aged, 80 and over; Blood Pressure; Blood Pressure Determination; Blood Pressure Monitoring, Ambulatory; Blood Pressure Monitors; Cerebrovascular Accident; Female; Humans; Male; Middle Aged; Oscillometry
DOI:
10.1097/MBP.0b013e3280b083e2
