Comparison between noninvasive measurement of central venous pressure using near infrared spectroscopy with an invasive central venous pressure monitoring in cardiac surgical Intensive Care Unit.
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Date
2016-07
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Abstract
Introduction: Central venous pressure (CVP) measurement is essential in the management of certain
clinical situations, including cardiac failure, volume overload and sepsis. CVP measurement requires
catheterization of the central vein which is invasive and may lead to complications. The aim of this study was
to evaluate the accuracy of measurement of CVP using a new noninvasive method based on near infrared
spectroscopy (NIRS) in a group of cardiac surgical Intensive Care Unit (ICU) patients. Methodology: Thirty
patients in cardiac surgical ICU were enrolled in the study who had an in situ central venous catheter (CVC).
Sixty measurements were recorded in 1 h for each patient. A total of 1800 values were compared between
noninvasive CVP (CVPn) obtained from Mespere VENUS 2000 CVP system and invasive CVP (CVPi)
obtained from CVC. Results: Strong positive correlation was found between CVPi and CVPn (R = 0.9272,
P < 0.0001). Linear regression equation ‑ CVPi = 0.5404 + 0.8875 × CVPn (r2 = 0.86, P < 0.001),
Bland–Altman bias plots showed mean difference ± standard deviation and limits of agreement: −0.31 ± 1.36
and − 2.99 to + 2.37 (CVPi–CVPn). Conclusion: Noninvasive assessment of the CVP based on NIRS
yields readings consistently close to those measured invasively. CVPn may be a clinically useful substitute
for CVPi measurements with an advantage of being simple and continuous. It is a promising tool for early
management of acute state wherein knowledge of CVP is helpful.
Description
Keywords
Cardiac preload, Central venous pressure, Near infrared spectroscopy
Citation
Sathish N, Singh Naveen G, Nagaraja P S, Sarala B M, Prabhushankar C G, Dhananjaya Manasa, Manjunatha N. Comparison between noninvasive measurement of central venous pressure using near infrared spectroscopy with an invasive central venous pressure monitoring in cardiac surgical Intensive Care Unit. Annals of Cardiac Anaesthesia. 2016 July; 19(3): 405-409.