Effectiveness of the advisory display SmartPilot® view in the assessment of anesthetic depth in low risk gynecological surgery patients: a randomized controlled trial

Abstract Background Assessment of appropriate anesthetic depth is crucial to prevent harm to patients. Unnecessary deep anesthesia can be harmful, potentially causing acute renal failure, myocardial injury, delirium, and an increased mortality rate. Conversely, too light anesthesia combined with mus...

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Main Authors: Hilde Strand, Ann Charlott Elshaug, Øyvind Bernersen, Randi Ballangrud
Format: Article
Language:English
Published: BMC 2022-02-01
Series:BMC Anesthesiology
Subjects:
Online Access:https://doi.org/10.1186/s12871-022-01593-w
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author Hilde Strand
Ann Charlott Elshaug
Øyvind Bernersen
Randi Ballangrud
author_facet Hilde Strand
Ann Charlott Elshaug
Øyvind Bernersen
Randi Ballangrud
author_sort Hilde Strand
collection DOAJ
description Abstract Background Assessment of appropriate anesthetic depth is crucial to prevent harm to patients. Unnecessary deep anesthesia can be harmful, potentially causing acute renal failure, myocardial injury, delirium, and an increased mortality rate. Conversely, too light anesthesia combined with muscle relaxants can result in intraoperative patient awareness and lead to serious psychological trauma. This trial aimed to ascertain the effectiveness of the advisory display SmartPilot® View (SPV), as a supplemental measure in the assessment of anesthetic depth in low risk gynecological surgery patients. The hypothesis was that the use of the SPV would increase the precision of assessment, and result in a higher mean arterial pressure. Methods This trial used a randomized, controlled, single-blind design with a homogeneous sample. Patients undergoing minor, low risk gynecological surgery were randomly assigned to two groups: a test group wherein current standards were supplemented with the advisory display SPV and a control group assessed using only the current standards. Female patients aged between 18 and 75 years with American Society of Anesthesiologists Physical Status Classification System scores of 1–3 undergoing planned general anesthesia using the total intravenous anesthetic method, combining propofol and remifentanil, were included. The exclusion criteria included a body mass index ≥ 35 kg/m2, a history of alcoholism, drug intake affecting propofol and remifentanil dynamics, and inability to consent. The independent sample t-test and chi-square test or Fisher’s exact test were used to assess the statistical significance of differences between the two groups. Results A total of 114 patients were included in the analysis (test group n = 58, control group n = 56). No significant differences in the mean arterial pressure, heart rate, bispectral index, extubation delay, or post-anesthesia care unit stay were found between groups. Conclusions The addition of the advisory display SmartPilot® View to current standards in the evaluation of anesthetic depth had no significant effect on the outcome. Trial registration The trial was registered on January 16th 2019 with ClinicalTrials.gov (ref: NCT03807271 ).
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spelling doaj.art-5486fca99f754e2c842922b8aced2fd52022-12-21T19:59:30ZengBMCBMC Anesthesiology1471-22532022-02-012211810.1186/s12871-022-01593-wEffectiveness of the advisory display SmartPilot® view in the assessment of anesthetic depth in low risk gynecological surgery patients: a randomized controlled trialHilde Strand0Ann Charlott Elshaug1Øyvind Bernersen2Randi Ballangrud3Department of Anesthesiology, Innlandet Hospital Trust, Sykehuset LillehammerDepartment of Anesthesiology, Østfold Hospital Trust, Sykehuset Østfold KalnesDepartment of Emergency, Anesthesiology and Intensive Care Unit, Innlandet Hospital Trust, Sykehuset LillehammerDepartment of Health Science Gjøvik, Faculty of Medicine and Health Sciences, Norwegian University of Science and TechnologyAbstract Background Assessment of appropriate anesthetic depth is crucial to prevent harm to patients. Unnecessary deep anesthesia can be harmful, potentially causing acute renal failure, myocardial injury, delirium, and an increased mortality rate. Conversely, too light anesthesia combined with muscle relaxants can result in intraoperative patient awareness and lead to serious psychological trauma. This trial aimed to ascertain the effectiveness of the advisory display SmartPilot® View (SPV), as a supplemental measure in the assessment of anesthetic depth in low risk gynecological surgery patients. The hypothesis was that the use of the SPV would increase the precision of assessment, and result in a higher mean arterial pressure. Methods This trial used a randomized, controlled, single-blind design with a homogeneous sample. Patients undergoing minor, low risk gynecological surgery were randomly assigned to two groups: a test group wherein current standards were supplemented with the advisory display SPV and a control group assessed using only the current standards. Female patients aged between 18 and 75 years with American Society of Anesthesiologists Physical Status Classification System scores of 1–3 undergoing planned general anesthesia using the total intravenous anesthetic method, combining propofol and remifentanil, were included. The exclusion criteria included a body mass index ≥ 35 kg/m2, a history of alcoholism, drug intake affecting propofol and remifentanil dynamics, and inability to consent. The independent sample t-test and chi-square test or Fisher’s exact test were used to assess the statistical significance of differences between the two groups. Results A total of 114 patients were included in the analysis (test group n = 58, control group n = 56). No significant differences in the mean arterial pressure, heart rate, bispectral index, extubation delay, or post-anesthesia care unit stay were found between groups. Conclusions The addition of the advisory display SmartPilot® View to current standards in the evaluation of anesthetic depth had no significant effect on the outcome. Trial registration The trial was registered on January 16th 2019 with ClinicalTrials.gov (ref: NCT03807271 ).https://doi.org/10.1186/s12871-022-01593-wAnesthetic depthAdvisory displaySmartPilot® View
spellingShingle Hilde Strand
Ann Charlott Elshaug
Øyvind Bernersen
Randi Ballangrud
Effectiveness of the advisory display SmartPilot® view in the assessment of anesthetic depth in low risk gynecological surgery patients: a randomized controlled trial
BMC Anesthesiology
Anesthetic depth
Advisory display
SmartPilot® View
title Effectiveness of the advisory display SmartPilot® view in the assessment of anesthetic depth in low risk gynecological surgery patients: a randomized controlled trial
title_full Effectiveness of the advisory display SmartPilot® view in the assessment of anesthetic depth in low risk gynecological surgery patients: a randomized controlled trial
title_fullStr Effectiveness of the advisory display SmartPilot® view in the assessment of anesthetic depth in low risk gynecological surgery patients: a randomized controlled trial
title_full_unstemmed Effectiveness of the advisory display SmartPilot® view in the assessment of anesthetic depth in low risk gynecological surgery patients: a randomized controlled trial
title_short Effectiveness of the advisory display SmartPilot® view in the assessment of anesthetic depth in low risk gynecological surgery patients: a randomized controlled trial
title_sort effectiveness of the advisory display smartpilot r view in the assessment of anesthetic depth in low risk gynecological surgery patients a randomized controlled trial
topic Anesthetic depth
Advisory display
SmartPilot® View
url https://doi.org/10.1186/s12871-022-01593-w
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