Correlation of pleth variability index with central venous pressure / 局解手术学杂志

ABSTRACT

Objective To observe the changes of pleth variability index ( PVI) and central venous pressure ( CVP) in patients undergo-ing resection operation of brain neoplasms,and the correlation of PVI with CVP was investigated. Methods Forty-two patients ( ASA Ⅱ~Ⅲ grade) undergoing elective resection operation of brain neoplasms were included in the study. PVI was monitored continously with Masio Radical-7 pulse oximeter after patient entering operative room. CVP was monitored after central venous catheterization placed with regional an-esthesia. Total intravenous anesthesia was chosen. CVP and PVI were recorded at the time of entering operative room,operation began,and 30 minutes,60 minutes,90 minutes,120 minutes after the beginning of operation. Results The correlation coefficient of PVI with CVP was 0. 201 under spontaneously breathing ( at patient entering operative room before anesthesia) and was 0. 237 under mechanical ventilation. Conclusion Correlation of PVI and CVP is lower. The value of PVI might need further research for guiding volume management.