Effectiveness of Finger and Forehead Plethysmographic Variability Index Monitoring in Pediatric Patients

Study Overview
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Brief Summary
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In pediatric surgical patients, the sensitivity of forehead and finger PVI monitoring was similar for the prediction of fluid responsiveness, whereas the specificity of forehead monitoring was higher. The use of forehead PVI probes in the fluid management of these patients seemed to be appropriate because cephalic region was not affected by low perfusion states.

Detailed Description
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he Plethysmographic Variability Index (PVI) can be measured with both finger and forehead probes. Vasoconstriction may reduce the reliability of PVI measurements in pediatric surgical patients prone to hypothermia. The vascular structure of the forehead area is resistant to changes in vasomotor tonus. The aim of our study is to compare the efficacy of PVI values measured at the finger and forehead areas to predict fluid responsiveness in these patients. Fifty pediatric patients with obtained parental consent and ethics committee approval underwent elective minor surgery were included into the study. Basic monitoring, finger and forehead perfusion index (PI) and PVI monitoring were applied. Hemodynamic parameters, PI, PVI, cardiac output (CO) values were recorded. The 15% increase in CO with passive leg raise (PLR) maneuver was estimated as fluid responsiveness. Two groups were created: Group R (fluid responsive); Group NR (fluid nonresponsive). Mann-Whitney U, t, chi-square and ROC tests were used in statistical evaluation.

Official Title
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The Comparison of the Effectiveness of Finger and Forehead Plethysmographic Variability Index Monitoring in Pediatric Patients

Conditions
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PVI

Intervention / Treatment
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* Device: pvi


Participation Criteria
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Eligibility Criteria
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Inclusion Criteria: written consent from their parents patients undergoing elective minor surgery with bleeding less than 500ml Children between the ages of 5-12. Exclusion Criteria: those who stay in the specified age range those with cardiopulmonary disease spontaneous breathing positive allen test peripheral circulatory failure vasopressor therapy anemia hypothermic

Ages Eligible for Study
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Minimum Age: 5 Years
Maximum Age: 12 Years

Sexes Eligible for Study
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All

Study Plan
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How is the study designed?
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Arms and Interventions

| Participant Group/Arm | Intervention/Treatment |
| --- | --- |
| PVI values<br>PVI values measured at the finger and forehead areas in pediatric patients | Device: pvi<br>* The Plethysmographic Variability Index (PVI) can be measured with both finger and forehead probes. Vasoconstriction may reduce the reliability of PVI measurements in pediatric surgical patients prone to hypothermia. The vascular structure of the forehead area is resistant to changes in vasomotor tonus. The aim of our study is to compare the efficacy of PVI values measured at the finger and forehead areas to predict fluid responsiveness in these patients.<br>|
| no control group<br>no control group | Device: pvi<br>* The Plethysmographic Variability Index (PVI) can be measured with both finger and forehead probes. Vasoconstriction may reduce the reliability of PVI measurements in pediatric surgical patients prone to hypothermia. The vascular structure of the forehead area is resistant to changes in vasomotor tonus. The aim of our study is to compare the efficacy of PVI values measured at the finger and forehead areas to predict fluid responsiveness in these patients.<br>|

What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| The Plethysmographic Variability Index (PVI) | The Plethysmographic Variability Index (PVI) can be measured with both finger and forehead probes by pvi monitoring. | 15 minute intervals during surgery | 

Secondary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Cardiac output (CO) | Cardiac output (CO) values were recorded by noninvasive cardiac output monitoring | 15 minute intervals during surgery |