Dataset Information

Non-contact physiological monitoring of post-operative patients in the intensive care unit.

ABSTRACT: Prolonged non-contact camera-based monitoring in critically ill patients presents unique challenges, but may facilitate safe recovery. A study was designed to evaluate the feasibility of introducing a non-contact video camera monitoring system into an acute clinical setting. We assessed the accuracy and robustness of the video camera-derived estimates of the vital signs against the electronically-recorded reference values in both day and night environments. We demonstrated non-contact monitoring of heart rate and respiratory rate for extended periods of time in 15 post-operative patients. Across day and night, heart rate was estimated for up to 53.2% (103.0 h) of the total valid camera data with a mean absolute error (MAE) of 2.5 beats/min in comparison to two reference sensors. We obtained respiratory rate estimates for 63.1% (119.8 h) of the total valid camera data with a MAE of 2.4 breaths/min against the reference value computed from the chest impedance pneumogram. Non-contact estimates detected relevant changes in the vital-sign values between routine clinical observations. Pivotal respiratory events in a post-operative patient could be identified from the analysis of video-derived respiratory information. Continuous vital-sign monitoring supported by non-contact video camera estimates could be used to track early signs of physiological deterioration during post-operative care.

SUBMITTER: Jorge J

PROVIDER: S-EPMC8758749 | biostudies-literature | 2022 Jan

REPOSITORIES: biostudies-literature

ACCESS DATA

Publications

Non-contact physiological monitoring of post-operative patients in the intensive care unit.

Jorge João J Villarroel Mauricio M Tomlinson Hamish H Gibson Oliver O Darbyshire Julie L JL Ede Jody J Harford Mirae M Young John Duncan JD Tarassenko Lionel L Watkinson Peter P

NPJ digital medicine 20220113 1

Prolonged non-contact camera-based monitoring in critically ill patients presents unique challenges, but may facilitate safe recovery. A study was designed to evaluate the feasibility of introducing a non-contact video camera monitoring system into an acute clinical setting. We assessed the accuracy and robustness of the video camera-derived estimates of the vital signs against the electronically-recorded reference values in both day and night environments. We demonstrated non-contact monitoring ...[more]

PMID: 35027658

Similar Datasets

Project description:BackgroundPost-operative delirium is a complication with long-lasting consequences for both patients and their families. This is particularly true for those transferred to the intensive care unit after surgery, where the incidence of post-operative delirium is high, and patient outcomes are often poor. Despite the acknowledged role of family engagement in delirium management, previous research has mainly focused on patients, with limited exploration of the shared experiences between patients and family members.AimThis study aims to explore the experiences of patients and family members during episodes of post-operative delirium in the intensive care unit to better understand their unmet needs.Study designA qualitative descriptive study was conducted at a tertiary general hospital. Eighteen pairs of patients, their family members and two other family members were interviewed. Data were collected through face-to-face semi-structured interviews within the first week after patients' discharge from the intensive care unit and analysed using thematic analysis.ResultsFour major themes emerged: (1) the dyadic relationship between patients and family members must be understood in the context of their shared emotional and behavioural experiences; (2) family's history may predispose patients to post-operative delirium; (3) family engagement may prevent the development of post-operative delirium; and (4) inadequate communication between health care providers and patients or families may negatively affect post-operative delirium outcomes.ConclusionsPost-operative delirium presents significant emotional and physical challenges for both patients and their families. Addressing these challenges requires improved communication between health care providers and families, as well as strategies that emphasize early family support and collaboration in care.Relevance to clinical practicePatients and their families should be considered a unit during post-operative delirium management, and earlier family engagement is essential. Health care systems should adapt intensive care unit practices to meet the dynamic needs of families, promoting more comprehensive support during critical care.

Project description:BackgroundAnalgosedation is a cornerstone therapy for mechanically ventilated patients in intensive care units (ICU). To avoid inadequate sedation and its complications, monitoring of analgosedation is of great importance. The aim of this study was to investigate whether monitoring of analgosedative drug concentrations (midazolam and sufentanil) might be beneficial to optimize analgosedation and whether drug serum concentrations correlate with the results of subjective (Richmond Agitation-Sedation Scale [RASS]/Ramsay Sedation Scale) and objective (bispectral (BIS) index) monitoring procedures.MethodsForty-nine intubated, ventilated, and analgosedated critically ill patients treated in ICU were clinically evaluated concerning the depth of sedation using RASS Score, Ramsay Score, and BIS index twice a day. Serum concentrations of midazolam and sufentanil were determined in blood samples drawn at the same time. Clinical and laboratory data were statistically analyzed for correlations using the Spearman's rank correlation coefficient rho (ρ).ResultsAverage age of the population was 57.8 ± 16.0 years, 61% of the patients were males. Most frequent causes for ICU treatments were sepsis (22%), pneumonia (22%), or a combination of both (25%). Serum concentrations of midazolam correlated weakly with RASS (ρ = - 0.467) and Ramsay Scores (ρ = 0.476). Serum concentrations of sufentanil correlated weakly with RASS (ρ = - 0.312) and Ramsay Scores (ρ = 0.295). Correlations between BIS index and serum concentrations of midazolam (ρ = - 0.252) and sufentanil (ρ = - 0.166) were low.ConclusionCorrelations between drug serum concentrations and clinical or neurophysiological monitoring procedures were weak. This might be due to intersubject variability, polypharmacy with drug-drug interactions, and complex metabolism, which can be altered in critically ill patients. Therapeutic drug monitoring is not beneficial to determine depth of sedation in ICU patients.

Dataset Information

Non-contact physiological monitoring of post-operative patients in the intensive care unit.

Publications

Non-contact physiological monitoring of post-operative patients in the intensive care unit.

Similar Datasets

OmicsDI is part of the ELIXIR infrastructure

Tweets