Document Detail

Investigation of the agreement of a continuous non-invasive arterial pressure device in comparison with invasive radial artery measurement.
MedLine Citation:
PMID:  22171358     Owner:  NLM     Status:  Publisher    
BACKGROUND: /st>Arterial pressure (AP) monitoring should be accurate, easy to use, free of risks, and ideally continuous. The continuous non-invasive arterial pressure (CNAP) device is non-invasive and provides continuous pressure readings. This study was performed to compare the agreement of CNAP and invasive AP monitoring. METHODS: /st>Ninety patients undergoing surgery under general anaesthesia were enrolled. Invasive pressure monitoring was established at the radial artery. CNAP monitoring using a finger sensor recording was begun before induction of anaesthesia. Statistical analysis was conducted with the Bland-Altman method for comparisons of repeated measures. RESULTS: /st>We obtained 16 843 valid pressure readings from 85 patients. Mean (sd) bias during maintenance of anaesthesia was: systolic AP: 4.2 (16.5) mm Hg; mean AP (MAP): -4.3 (10.4) mm Hg; and diastolic AP: -5.8 (6) mm Hg. The results of a subgroup analysis of patients who had a mean intra-arterial pressure of <70 mm Hg were as follows: systolic pressure: -0.3 (9.7) mm Hg; mean pressure: -6.8 (7.6) mm Hg; and diastolic pressure: -7.9 (7.2) mm Hg. Bias and percentage error during the induction period were greater in both the main and subgroup analyses, probably due to recalibration being omitted after induction. CONCLUSIONS: /st>The CNAP monitor showed an acceptable agreement and was interchangeable with invasive pressure monitoring for MAP during normotensive conditions. During induction of anaesthesia and when the AP was low, the agreement was less good and interchangeability was not achieved. These results suggest that CNAP is not statistically equivalent to invasive monitoring during all periods of anaesthesia but may be a useful additional AP monitor.
C Ilies; M Bauer; P Berg; J Rosenberg; J Hedderich; B Bein; J Hinz; R Hanss
Related Documents :
21693468 - Increase in optic nerve sheath diameter induced by epidural blood patch: a preliminary ...
8512408 - Factors confounding impedance catheter volume measurements in vitro.
21694948 - Role of aliskiren in blood pressure control and renoprotection.
3703208 - Acute middle cerebral artery occlusion: experience with volume expansion therapy.
2201348 - Cerebral autoregulation.
23112808 - An emerging concept of vascular salt sensitivity.
Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2011-12-12
Journal Detail:
Title:  British journal of anaesthesia     Volume:  -     ISSN:  1471-6771     ISO Abbreviation:  -     Publication Date:  2011 Dec 
Date Detail:
Created Date:  2011-12-15     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0372541     Medline TA:  Br J Anaesth     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Department of Anaesthesiology and Intensive Care Medicine, University Hospital of Schleswig-Holstein, Campus Kiel, Schwanenweg 21, D-24105, Germany.
Export Citation:
APA/MLA Format     Download EndNote     Download BibTex
MeSH Terms

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

Previous Document:  John Newsom-Davis: clinician-scientist and so much more.
Next Document:  Cardiac output measurement with transpulmonary ultrasound dilution is feasible in the presence of a ...