Correlation of Peripheral Venous Pressure and Central Venous Pressure in Surgical Patients

• Main Authors: Amar, D., Melendez, J. A., ZHANG, H., Dobres, C., Leung, Denis H. Y., Padilla, R.
• Format: text
• Language: English
• Published: Institutional Knowledge at Singapore Management University 2001
• Subjects: Econometrics; Medicine and Health Sciences
• Online Access: https://ink.library.smu.edu.sg/soe_research/450
• Institution: Singapore Management University

To determine the degree of agreement between central venous pressure (CVP) and peripheral venous pressure (PVP) in surgical patients. Design: Prospective study. Setting: University hospital. Participants: Patients without cardiac dysfunction undergoing major elective noncardiac surgery (n = 150). Measurements and Main Results: Simultaneous CVP and PVP measurements were obtained at random points in mechanically ventilated patients during surgery (n = 100) and in spontaneously ventilating patients in the postanesthesia care unit (n = 50). In a subset of 10 intraoperative patients, measurements were made before and after a 2-L fluid challenge. During surgery, PVP correlated highly to CVP (r = 0.86), and the bias (mean difference between CVP and PVP) was ?1.6 ± 1.7 mmHg (mean ± SD). In the postanesthesia care unit, PVP also correlated highly to CVP (r = 0.88), and the bias was ?2.2 ± 1.9 (mean ± SD). When adjusted by the average bias of ?2, PVP predicted the observed CVP to within ±3 mmHg in both populations of patients with 95% probability. In patients receiving a fluid challenge, PVP and CVP increased similarly from 6 ± 2 to 11 ± 2 mmHg and 4 ± 2 to 9 ± 2 mmHg. Conclusion: Under the conditions of this study, PVP showed a consistent and high degree of agreement with CVP in the perioperative period in patients without significant cardiac dysfunction. PVP ?2 was useful in predicting CVP over common clinical ranges of CVP. PVP is a rapid noninvasive tool to estimate volume status in surgical patients. Copyright © 2001 by W.B. Saunders Company