Unreliable Tracking Ability of the Third-Generation FloTrac/Vigileo™ System for Changes in Stroke Volume after Fluid Administration in Patients with High Systemic Vascular Resistance during Laparoscopic Surgery

• DOI: 10.1371/journal.pone.0142125
• Publication Date: 2015-11-03T19:05:54Z
• Authors: Ji-Hyun Chin; Wook-Jong Kim; Jeong-Hyun Choi; Yun A. Han; Seon-Ok Kim; Woo-Jong Choi
• Keywords: Trendelenburg position

Background The FloTrac/Vigileo™ system does not thoroughly reflect variable arterial tones, due to a lack of external calibration. ability this measure stroke volume and track its changes after fluid administration has been fully evaluated in patients with the high systemic vascular resistance that can develop during laparoscopic surgery. Methods In 42 undergoing prostatectomy, derived by third-generation (SV-Vigileo), measured using transesophageal echocardiography (SV-TEE) as reference method, total were before 500 ml pneumoperitoneum combined Trendelenburg position. Results Total was 2159.4 ± 523.5 dyn·s/cm5 administration. SV-Vigileo significantly higher than SV-TEE both (68.8 15.9 vs. 57.0 11.0 ml, P < 0.001) (73.0 14.8 64.9 12.2 = 0.003) During position, Bland-Altman analysis for repeated measures showed 53.8% percentage error between SV-TEE. Four-quadrant plot (69.2% concordance rate) polar (20.6° mean angle, 16.4° SD ±51.5° radial sector containing 95% data points) did indicate good trending system. Conclusions may be useful surgery, based on unreliable performance measuring tracking