RELIABILITY OF PERFUSION INDEX (PI) IN THE EVALUATION OF THE HEMODYNAMIC EFFECT OF PREOPERATIVE FASTING TIME
Project no. 23321 · Status: Kapanmış (Yayın bekleniyor) · 2021
Summary
<p>Introduction: Preoperative fasting causes fluid deficit and a decrease in blood pressure during anesthesia in patients who will undergo elective surgery. In our study, perfusion index (PI) and Plet Variability Index (PVI) – Plet variability index, which are new monitoring methods, will be used to determine fluid deficit status. PI and PVI is a non-invasive parameter that can be obtained simultaneously with the help of a probe that measures oxygen saturation from the finger. Changes in PI, PVI and changes in blood pressure with these parameters will be associated with the fasting period. The expected result is related to the hemodynamic balance PI and PVI values resulting from fasting and dehydration. Results: Pre-induction PI of the two groups was similar. The PI of the fluid group was significantly higher at the 5th minute after intubation (p<0.05). PVI was significantly lower in the fluid group compared to the control group both before induction and at the 5th minute after intubation (p<0.05). Statistically significant changes in hemodynamic parameters during the measurement periods were similar in the two groups. When all measurements of both groups were evaluated with Spearman's correlation test, negative correlation between PI and DAB, SAB, SpO2 and PVI; The positive relationship between HR and HR was significant. There was no significant relationship between fasting duration and pre-induction PI and PVI in both groups. Discussion: In general, fasting time and fluid intake do not affect hemodynamic parameters and baseline values of PI. PVI baseline values were lower in the group whose fluid intake was released up to two hours. PI and PVI measurements during periods of additional stress such as intubation and incision tend to support the importance of fluid balance.</p>