Early Sedation Depth and Clinical Outcomes in Mechanically Ventilated Patients in a Hospital: Retrospective Cohort Study

sum mary: Purpose: This study aimed to identify the early sedation depth in the first 48 hours of mechanical ventilation and its relationship to clinical outcomes to promote the transition to light sedation. Methods: This retrospective single-center cohort study was conducted in two medical intensi...

Full description

Bibliographic Details
Main Authors: Jeong Mi Hwang, Su Jung Choi
Format: Article
Language:English
Published: Elsevier 2023-02-01
Series:Asian Nursing Research
Subjects:
Online Access:http://www.sciencedirect.com/science/article/pii/S1976131722000718
_version_ 1811161833103425536
author Jeong Mi Hwang
Su Jung Choi
author_facet Jeong Mi Hwang
Su Jung Choi
author_sort Jeong Mi Hwang
collection DOAJ
description sum mary: Purpose: This study aimed to identify the early sedation depth in the first 48 hours of mechanical ventilation and its relationship to clinical outcomes to promote the transition to light sedation. Methods: This retrospective single-center cohort study was conducted in two medical intensive care units (MICUs) at a general tertiary hospital, using a standardized sedation protocol. To investigate the early sedation depth, the Sedation Index was used, which can indicate changes over the first 48 hours. Patients were divided into three groups based on tertiles of Sedation Index. The primary outcome was mortality at 30, 90, and 180 days. The secondary outcomes included length of stay in the ICU and ventilator-free days. Kaplan-Meier analysis and multivariable Cox regression were conducted to compare factors influencing mortality. Results: This study included 394 patients. The deepest sedation group showed more severe illness, delirium, and deeper sedation at admission (p < .001). The survival curve decreased as sedation increased, even within the light sedation levels. In the deepest sedation group, 30-day mortality (hazard ratio [HR] 2.11, 95% confidence interval [CI] 1.33–3.34), 90-day mortality (HR 2.00, 95% CI 1.31–3.06), and 180-day mortality (HR 1.77, 95% CI 1.17–2.67) increased. The length of stay in the ICU and ventilator-free days did not show statistical differences. Conclusions: These results indicate that early deep sedation is a modifiable factor that can potentially affect mortality. The protocol for inducing the transition into light sedation must comply with recommendations to improve clinical outcomes.
first_indexed 2024-04-10T06:21:34Z
format Article
id doaj.art-56ed01e6c9464ac69a3853ad2dbe8541
institution Directory Open Access Journal
issn 1976-1317
language English
last_indexed 2024-04-10T06:21:34Z
publishDate 2023-02-01
publisher Elsevier
record_format Article
series Asian Nursing Research
spelling doaj.art-56ed01e6c9464ac69a3853ad2dbe85412023-03-02T04:59:07ZengElsevierAsian Nursing Research1976-13172023-02-011711522Early Sedation Depth and Clinical Outcomes in Mechanically Ventilated Patients in a Hospital: Retrospective Cohort StudyJeong Mi Hwang0Su Jung Choi1Department of Nursing, Samsung Medical Center, Republic of KoreaGraduate School of Clinical Nursing Science, Sungkyunkwan University, Republic of Korea; Correspondence to:sum mary: Purpose: This study aimed to identify the early sedation depth in the first 48 hours of mechanical ventilation and its relationship to clinical outcomes to promote the transition to light sedation. Methods: This retrospective single-center cohort study was conducted in two medical intensive care units (MICUs) at a general tertiary hospital, using a standardized sedation protocol. To investigate the early sedation depth, the Sedation Index was used, which can indicate changes over the first 48 hours. Patients were divided into three groups based on tertiles of Sedation Index. The primary outcome was mortality at 30, 90, and 180 days. The secondary outcomes included length of stay in the ICU and ventilator-free days. Kaplan-Meier analysis and multivariable Cox regression were conducted to compare factors influencing mortality. Results: This study included 394 patients. The deepest sedation group showed more severe illness, delirium, and deeper sedation at admission (p < .001). The survival curve decreased as sedation increased, even within the light sedation levels. In the deepest sedation group, 30-day mortality (hazard ratio [HR] 2.11, 95% confidence interval [CI] 1.33–3.34), 90-day mortality (HR 2.00, 95% CI 1.31–3.06), and 180-day mortality (HR 1.77, 95% CI 1.17–2.67) increased. The length of stay in the ICU and ventilator-free days did not show statistical differences. Conclusions: These results indicate that early deep sedation is a modifiable factor that can potentially affect mortality. The protocol for inducing the transition into light sedation must comply with recommendations to improve clinical outcomes.http://www.sciencedirect.com/science/article/pii/S1976131722000718deep sedationintensive care unitsmortality
spellingShingle Jeong Mi Hwang
Su Jung Choi
Early Sedation Depth and Clinical Outcomes in Mechanically Ventilated Patients in a Hospital: Retrospective Cohort Study
Asian Nursing Research
deep sedation
intensive care units
mortality
title Early Sedation Depth and Clinical Outcomes in Mechanically Ventilated Patients in a Hospital: Retrospective Cohort Study
title_full Early Sedation Depth and Clinical Outcomes in Mechanically Ventilated Patients in a Hospital: Retrospective Cohort Study
title_fullStr Early Sedation Depth and Clinical Outcomes in Mechanically Ventilated Patients in a Hospital: Retrospective Cohort Study
title_full_unstemmed Early Sedation Depth and Clinical Outcomes in Mechanically Ventilated Patients in a Hospital: Retrospective Cohort Study
title_short Early Sedation Depth and Clinical Outcomes in Mechanically Ventilated Patients in a Hospital: Retrospective Cohort Study
title_sort early sedation depth and clinical outcomes in mechanically ventilated patients in a hospital retrospective cohort study
topic deep sedation
intensive care units
mortality
url http://www.sciencedirect.com/science/article/pii/S1976131722000718
work_keys_str_mv AT jeongmihwang earlysedationdepthandclinicaloutcomesinmechanicallyventilatedpatientsinahospitalretrospectivecohortstudy
AT sujungchoi earlysedationdepthandclinicaloutcomesinmechanicallyventilatedpatientsinahospitalretrospectivecohortstudy