1
|
Singh G, Nguyen C, Kuschner W. Pharmacologic Sleep Aids in the Intensive Care Unit: A Systematic Review. J Intensive Care Med 2024:8850666241255345. [PMID: 38881385 DOI: 10.1177/08850666241255345] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/18/2024]
Abstract
Background: Patients in the intensive care unit (ICU) often experience poor sleep quality. Pharmacologic sleep aids are frequently used as primary or adjunctive therapy to improve sleep, although their benefits in the ICU remain uncertain. This review aims to provide a comprehensive assessment of the objective and subjective effects of medications used for sleep in the ICU, as well as their adverse effects. Methods: PubMed, Web of Science, Scopus, Embase, and Cochrane Central Register of Controlled Trials were systematically searched from their inception until June 2023 for comparative studies assessing the effects of pharmacologic sleep aids on objective and subjective metrics of sleep. Results: Thirty-four studies with 3498 participants were included. Medications evaluated were melatonin, ramelteon, suvorexant, propofol, and dexmedetomidine. The majority of studies were randomized controlled trials. Melatonin and dexmedetomidine were the best studied agents. Objective sleep metrics included polysomnography (PSG), electroencephalography (EEG), bispectral index, and actigraphy. Subjective outcome measures included patient questionnaires and nursing observations. Evidence for melatonin as a sleep aid in the ICU was mixed but largely not supportive for improving sleep. Evidence for ramelteon, suvorexant, and propofol was too limited to offer definitive recommendations. Both objective and subjective data supported dexmedetomidine as an effective sleep aid in the ICU, with PSG/EEG in 303 ICU patients demonstrating increased sleep duration and efficiency, decreased arousal index, decreased percentage of stage N1 sleep, and increased absolute and percentage of stage N2 sleep. Mild bradycardia and hypotension were reported as side effects of dexmedetomidine, whereas the other medications were reported to be safe. Several ongoing studies have not yet been published, mostly on melatonin and dexmedetomidine. Conclusions: While definitive conclusions cannot be made for most medications, dexmedetomidine improved sleep quantity and quality in the ICU. These benefits need to be balanced with possible hemodynamic side effects.
Collapse
Affiliation(s)
- Gaurav Singh
- Pulmonary, Critical Care, and Sleep Medicine Section, Department of Medicine, Veterans Affairs Palo Alto Health Care System, Palo Alto, CA, USA
- Division of Pulmonary, Allergy, and Critical Care Medicine, Department of Medicine, Stanford University, Palo Alto, CA, USA
| | - Christopher Nguyen
- Pulmonary, Critical Care, and Sleep Medicine Section, Department of Medicine, Veterans Affairs Palo Alto Health Care System, Palo Alto, CA, USA
- Division of Pulmonary, Allergy, and Critical Care Medicine, Department of Medicine, Stanford University, Palo Alto, CA, USA
| | - Ware Kuschner
- Pulmonary, Critical Care, and Sleep Medicine Section, Department of Medicine, Veterans Affairs Palo Alto Health Care System, Palo Alto, CA, USA
- Division of Pulmonary, Allergy, and Critical Care Medicine, Department of Medicine, Stanford University, Palo Alto, CA, USA
| |
Collapse
|
2
|
Ekkapat G, Kampitak W, Theerasuwipakorn N, Kittipongpattana J, Engsusophon P, Phannajit J, Chokengarmwong N. A Comparison of Efficacy between Low-dose Dexmedetomidine and Propofol for Prophylaxis of Postoperative Delirium in Elderly Patients Undergoing Hip Fracture Surgery: A Randomized Controlled Trial. Indian J Crit Care Med 2024; 28:467-474. [PMID: 38738208 PMCID: PMC11080087 DOI: 10.5005/jp-journals-10071-24710] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2024] [Accepted: 04/12/2024] [Indexed: 05/14/2024] Open
Abstract
Aims and background The efficacy of dexmedetomidine and propofol in preventing postoperative delirium is controversial. This study aims to evaluate the efficacy of dexmedetomidine and propofol for preventing postoperative delirium in extubated elderly patients undergoing hip fracture surgery. Materials and methods This randomized controlled trial included participants undergoing hip fracture surgery. Participants were randomly assigned to receive dexmedetomidine, propofol, or placebo intravenously during intensive care unit (ICU) admission (8 p.m. to 6 a.m.). The drug dosages were adjusted to achieve the Richmond Agitation Sedation Scale (RASS) of 0 to -1. The primary outcome was postoperative delirium. The secondary outcomes were postoperative complications, fentanyl consumption, and length of hospital stay. Results 108 participants were enrolled (n = 36 per group). Postoperative delirium incidences were 8.3%, 22.2%, and 5.6% in the dexmedetomidine, propofol, and placebo groups, respectively. The hazard ratios of dexmedetomidine and propofol compared with placebo were 1.49 (95% CI, 0.25, 8.95; p = 0.66) and 4.18 (95% CI, 0.88, 19.69; p = 0.07). The incidence of bradycardia was higher in the dexmedetomidine group compared with others (13.9%; p = 0.01) but not for hypotension (8.3%; p = 0.32). The median length of hospital stays (8 days, IQR: 7, 11) and fentanyl consumption (240 µg, IQR: 120, 400) were not different among groups. Conclusion This study did not successfully demonstrate the impact of nocturnal low-dose dexmedetomidine and propofol in preventing postoperative delirium among elderly patients undergoing hip fracture surgery. While not statistically significant, it is noteworthy that propofol exhibited a comparatively higher delirium rate. How to cite this article Ekkapat G, Kampitak W, Theerasuwipakorn N, Kittipongpattana J, Engsusophon P, Phannajit J, et al. A Comparison of Efficacy between Low-dose Dexmedetomidine and Propofol for Prophylaxis of Postoperative Delirium in Elderly Patients Undergoing Hip Fracture Surgery: A Randomized Controlled Trial. Indian J Crit Care Med 2024;28(5):467-474.
Collapse
Affiliation(s)
- Gamonmas Ekkapat
- Department of Anesthesiology, Faculty of Medicine, Chulalongkorn University, King Chulalongkorn Memorial Hospital, Bangkok, Thailand
| | - Wirinaree Kampitak
- Department of Anesthesiology, Faculty of Medicine, Chulalongkorn University, King Chulalongkorn Memorial Hospital, Bangkok, Thailand
| | - Nonthikorn Theerasuwipakorn
- Division of Cardiovascular Medicine, Department of Medicine, Faculty of Medicine, Chulalongkorn University, and Cardiac Center, King Chulalongkorn Memorial Hospital, Bangkok, Thailand
| | - Jirapat Kittipongpattana
- Department of Anesthesiology, Faculty of Medicine, Chulalongkorn University, King Chulalongkorn Memorial Hospital, Bangkok, Thailand
| | - Phatthanaphol Engsusophon
- Department of Anesthesiology, Faculty of Medicine, Chulalongkorn University, King Chulalongkorn Memorial Hospital, Bangkok, Thailand
| | - Jeerath Phannajit
- Division of Nephrology and Clinical Epidemiology, Department of Medicine, and Center of Excellence for Metabolic Bone Disease in CKD patients, Faculty of Medicine, Chulalongkorn University, King Chulalongkorn Memorial Hospital, Bangkok, Thailand
| | - Nalin Chokengarmwong
- Department of Anesthesiology, Faculty of Medicine, Chulalongkorn University, King Chulalongkorn Memorial Hospital, Bangkok, Thailand
| |
Collapse
|
3
|
van der Hoeven AE, Bijlenga D, van der Hoeven E, Schinkelshoek MS, Hiemstra FW, Kervezee L, van Westerloo DJ, Fronczek R, Lammers GJ. Sleep in the intensive and intermediate care units: Exploring related factors of delirium, benzodiazepine use and mortality. Intensive Crit Care Nurs 2024; 81:103603. [PMID: 38171236 DOI: 10.1016/j.iccn.2023.103603] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2023] [Revised: 11/25/2023] [Accepted: 12/09/2023] [Indexed: 01/05/2024]
Abstract
AIM OF THE STUDY The primary purpose was to examine sleep difficulties and delirium in the Intensive and Intermediate Care Unit. Secondarily, factors impacting night-time sleep duration and quality, mortality, and the impact of benzodiazepine use on sleep outcomes were investigated. MATERIALS AND METHODS This retrospective study encompassed data from 323 intensive and intermediate care unit admissions collected in the Netherlands, spanning from November 2018 to May 2020. Sleep quality was measured using the Richards-Campbell Sleep Questionnaire. Night-time sleep duration was nurse-reported. We investigated associations of these sleep outcomes with age, sex, length-of-stay, natural daylight, disease severity, mechanical ventilation, benzodiazepine use, and delirium using Generalized Estimating Equations models. Associations with one-year post-discharge mortality were analyzed using Cox regression. RESULTS Night-time sleep duration was short (median 4.5 hours) and sleep quality poor (mean score 4.9/10). Benzodiazepine use was common (24 % of included nights) and was negatively associated with night-time sleep duration and quality (B = -0.558 and -0.533, p <.001). Delirium and overnight transfers were negatively associated with sleep quality (B = -0.716 and -1.831, p <.05). The day-to-night sleep ratio was higher in the three days before delirium onset than in non-delirious individuals (p <.05). Age, disease severity and female sex were associated with increased one-year mortality. Sleep quality was negatively, but not-significantly, associated with mortality (p =.070). CONCLUSIONS Night-time sleep in the critical care environment has a short duration and poor quality. Benzodiazepine use was not associated with improved sleep. Sleep patterns change ahead of delirium onset. IMPLICATIONS FOR CLINICAL PRACTICE Consistent sleep monitoring should be part of routine nursing practice, using a validated instrument like the Richards-Campbell Sleep Questionnaire. Given the lack of proven efficacy of benzodiazepines in promoting sleep in critical care settings, it is vital to develop more effective sleep treatments that include non-benzodiazepine medication and sleep hygiene strategies.
Collapse
Affiliation(s)
- Adrienne E van der Hoeven
- Department of Neurology, Leiden University Medical Center, Leiden, the Netherlands; Stichting Epilepsie Instellingen Nederland (SEIN), Sleep-Wake Center, Heemstede, the Netherlands
| | - Denise Bijlenga
- Department of Neurology, Leiden University Medical Center, Leiden, the Netherlands; Stichting Epilepsie Instellingen Nederland (SEIN), Sleep-Wake Center, Heemstede, the Netherlands
| | - Ernst van der Hoeven
- Stichting Epilepsie Instellingen Nederland (SEIN), Sleep-Wake Center, Heemstede, the Netherlands
| | - Mink S Schinkelshoek
- Department of Neurology, Leiden University Medical Center, Leiden, the Netherlands; Stichting Epilepsie Instellingen Nederland (SEIN), Sleep-Wake Center, Heemstede, the Netherlands
| | - Floor W Hiemstra
- Department of Intensive Care, Leiden University Medical Center, Leiden, the Netherlands; Group of Neurophysiology, Department of Cell and Chemical Biology, Leiden University Medical Center, Leiden, the Netherlands
| | - Laura Kervezee
- Group of Neurophysiology, Department of Cell and Chemical Biology, Leiden University Medical Center, Leiden, the Netherlands
| | - David J van Westerloo
- Department of Intensive Care, Leiden University Medical Center, Leiden, the Netherlands
| | - Rolf Fronczek
- Department of Neurology, Leiden University Medical Center, Leiden, the Netherlands; Stichting Epilepsie Instellingen Nederland (SEIN), Sleep-Wake Center, Heemstede, the Netherlands
| | - Gert Jan Lammers
- Department of Neurology, Leiden University Medical Center, Leiden, the Netherlands; Stichting Epilepsie Instellingen Nederland (SEIN), Sleep-Wake Center, Heemstede, the Netherlands.
| |
Collapse
|
4
|
Sirilaksanamanon P, Thawitsri T, Charuluxananan S, Chirakalwasan N. Diagnostic Value of the Bispectral Index to Assess Sleep Quality after Elective Surgery in Intensive Care Unit. Indian J Crit Care Med 2023; 27:795-800. [PMID: 37936795 PMCID: PMC10626235 DOI: 10.5005/jp-journals-10071-24555] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2023] [Accepted: 09/15/2023] [Indexed: 11/09/2023] Open
Abstract
Purpose Monitoring and improving sleep quality may help recovery from major illness. Polysomnography is a gold standard for measuring sleep quality, but routine use is not practical. The goal of this study is to investigate the diagnostic accuracy of an alternative monitor, the Bispectral Index (BIS), for evaluating the quality of sleep-in postoperative patients in the intensive care unit (ICU). Study design An observational study. Materials and methods Patients admitted to postoperative ICU after elective major noncardiac surgery were monitored with both BIS and PSG during the first night. The temporally synchronized data from both monitors were obtained for measurement of the association. Clinical outcomes were compared between patients with different postoperative sleep quality. Results Thirty-three patients were enrolled in this study. For determining the average BIS index associated with good postoperative sleep quality, receiver operating characteristics (ROC) curve was generated. Area under the ROC curve (AUC) was 0.65. The cutoff with best discriminability was 75 with a sensitivity of 68% and a specificity of 56%. Compared with those with good and poor postoperative sleep quality, there were no differences in main postoperative outcomes including duration of mechanical ventilation and ICU stay. Although the quality of sleep after surgery of all subjects with postoperative delirium was poor, the incidence of delirium between the groups did not significantly differ (0% vs 10.3%; p = 0.184). Conclusion The monitoring of BIS is a viable tool for evaluating sleep quality in mechanically ventilated patients in the postoperative ICU with acceptable precision. Trial registration www.clinicaltrials.in.th, TCTR20200310005. How to cite this article Sirilaksanamanon P, Thawitsri T, Charuluxananan S, Chirakalwasan N. Diagnostic Value of the Bispectral Index to Assess Sleep Quality after Elective Surgery in Intensive Care Unit. Indian J Crit Care Med 2023;27(11):795-800.
Collapse
Affiliation(s)
- Pongpol Sirilaksanamanon
- Department of Anesthesiology, King Chulalongkorn Memorial Hospital, Thai Red Cross Society, Bangkok, Thailand
| | - Thammasak Thawitsri
- Department of Anesthesiology, King Chulalongkorn Memorial Hospital, Thai Red Cross Society, Bangkok, Thailand
| | - Somrat Charuluxananan
- Department of Anesthesiology, Faculty of Medicine, Chulalongkorn University, Bangkok, Thailand
| | - Naricha Chirakalwasan
- Division of Pulmonary and Critical Care Medicine, Department of Medicine, Faculty of Medicine, Chulalongkorn University, Bangkok, Thailand; Excellence Center for Sleep Disorders, King Chulalongkorn Memorial Hospital, Thai Red Cross Society, Bangkok, Thailand
| |
Collapse
|
5
|
Wiegand A, Behal M, Robbins B, Bissell B, Pandya K, Mefford B. Niche Roles for Dexmedetomidine in the Intensive Care Unit. Ann Pharmacother 2023; 57:1207-1220. [PMID: 36721323 DOI: 10.1177/10600280221151170] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023] Open
Abstract
OBJECTIVE Review dexmedetomidine use in critically ill patients for niche indications including sleep, delirium, alcohol withdrawal, sepsis, and immunomodulation. DATA SOURCES Literature was sought using PubMed (February 2012-November 2022). Search terms included dexmedetomidine AND (hypnotics OR sedatives OR sleep OR delirium OR immunomodulation OR sepsis OR alcohol withdrawal). STUDY SELECTION AND DATA EXTRACTION Relevant studies conducted in humans ≥18 years published in English were included. Exclusion criteria included systematic reviews, meta-analyses, and studies evaluating oral dexmedetomidine or other alpha-2 agonists. DATA SYNTHESIS A total of 231 articles were retrieved. After removal of duplicates, title and abstract screening, and application of inclusion criteria, 35 articles were included. Across the clinical conditions included in this review, varying clinical outcomes were seen. Dexmedetomidine may improve morbidity outcomes in delirium, sleep, and alcohol withdrawal syndrome. Due to limited human studies and poor quality of evidence, no conclusions can be drawn regarding the role of dexmedetomidine in immunomodulation or sepsis. RELEVANCE TO PATIENT CARE AND CLINICAL PRACTICE This review presents data for potential niche roles of dexmedetomidine aside from sedation in critically ill patients. This may serve as a guide for sedation selection in critically ill patients who may also benefit from the pleiotropic effects of dexmedetomidine due to a clinical condition discussed in this review. CONCLUSION While further studies are needed, dexmedetomidine may provide benefit in other indications in critically ill patients including delirium, sleep, and alcohol withdrawal. Given the poor quality of evidence of dexmedetomidine use in immunomodulation and sepsis, no conclusions can be drawn.
Collapse
Affiliation(s)
- Alexandra Wiegand
- Department of Pharmacy Services, University of Kentucky HealthCare, Lexington, KY, USA
| | - Michael Behal
- Department of Pharmacy Services, University of Kentucky HealthCare, Lexington, KY, USA
- Department of Pharmacy Practice & Science, University of Kentucky College of Pharmacy, Lexington, KY, USA
| | - Blake Robbins
- Department of Pharmacy Services, University of Kentucky HealthCare, Lexington, KY, USA
| | - Brittany Bissell
- Department of Pharmacy Services, University of Kentucky HealthCare, Lexington, KY, USA
| | - Komal Pandya
- Department of Pharmacy Services, University of Kentucky HealthCare, Lexington, KY, USA
| | - Breanne Mefford
- Department of Pharmacy Services, University of Kentucky HealthCare, Lexington, KY, USA
| |
Collapse
|
6
|
Sawires AN, Weiner TR, Shah RP, Geller JA, Cooper HJ. Is It Necessary to Wake Patients for Overnight Vital Signs Following Total Joint Arthroplasty? Orthop Nurs 2023; 42:243-248. [PMID: 37494904 DOI: 10.1097/nor.0000000000000957] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 07/28/2023] Open
Abstract
Benefits of sleep are well-established in postoperative recovery; however, patients undergoing total joint arthroplasty (TJA) often experience poor sleep during hospitalization. While multifactorial, among the major reasons are the frequent and ritualized overnight vital sign checks. In the absence of data in support of or against this practice, we asked whether it remains necessary. We retrospectively analyzed a cohort of 419 primary TJA patients. Demographics, comorbidities, operative, and vital sign data were collected through postoperative Day 3. Correlation between daytime (6:00 a.m. to 10:00 p.m.) and nighttime (10:01 p.m. to 5:59 a.m.) vitals was examined. The vast majority of nighttime vitals fell within normal ranges, including O2 saturation (O2; 99.4%), temperature (TEMP; 97.8%), heart rate (HR; 87.5%), systolic blood pressure (SBP; 85.8%), and diastolic blood pressure (DBP; 84.4%). Predictors of abnormal nighttime vitals included American Society of Anesthesiologists (ASA) score (abnormal SBP; odds ratio [OR] 1.64, p = .045), obesity (abnormal DBP; OR: 0.37, p = .011), and smoking status (elevated temperature; OR: 2.79, p = .042). Estimated blood loss was predictive of an abnormal nighttime TEMP (OR: 1.002; p < .001). Postoperatively, there were several correlations between abnormal daytime and nighttime vitals, including SBP (OR: 6.23, p < .001), DBP (OR: 4.31, p < .001), and HR (OR: 10.35; p < .001). Of the 419 patients, only 9 (2.1%) received any intervention based on abnormal nighttime vitals. Each exhibited daytime vital sign abnormalities prior to the abnormal nighttime readings. Patients with abnormal nighttime vitals can be predicted on the basis of medical comorbidities and abnormal daytime vitals. These findings suggest that healthy post-TJA patients with normal daytime vitals may not need to be routinely woken at night.
Collapse
Affiliation(s)
- Andrew N Sawires
- Andrew N. Sawires, MD, Department of Orthopedic Surgery, Columbia University Medical Center, New York, NY
- Travis R. Weiner, BS, Department of Orthopedic Surgery, Columbia University Medical Center, New York, NY
- Roshan P. Shah, MD, Department of Orthopedic Surgery, Columbia University Medical Center, New York, NY
- Jeffrey A. Geller, MD, Department of Orthopedic Surgery, Columbia University Medical Center, New York, NY
- H. John Cooper, MD, Department of Orthopedic Surgery, Columbia University Medical Center, New York, NY
| | - Travis R Weiner
- Andrew N. Sawires, MD, Department of Orthopedic Surgery, Columbia University Medical Center, New York, NY
- Travis R. Weiner, BS, Department of Orthopedic Surgery, Columbia University Medical Center, New York, NY
- Roshan P. Shah, MD, Department of Orthopedic Surgery, Columbia University Medical Center, New York, NY
- Jeffrey A. Geller, MD, Department of Orthopedic Surgery, Columbia University Medical Center, New York, NY
- H. John Cooper, MD, Department of Orthopedic Surgery, Columbia University Medical Center, New York, NY
| | - Roshan P Shah
- Andrew N. Sawires, MD, Department of Orthopedic Surgery, Columbia University Medical Center, New York, NY
- Travis R. Weiner, BS, Department of Orthopedic Surgery, Columbia University Medical Center, New York, NY
- Roshan P. Shah, MD, Department of Orthopedic Surgery, Columbia University Medical Center, New York, NY
- Jeffrey A. Geller, MD, Department of Orthopedic Surgery, Columbia University Medical Center, New York, NY
- H. John Cooper, MD, Department of Orthopedic Surgery, Columbia University Medical Center, New York, NY
| | - Jeffrey A Geller
- Andrew N. Sawires, MD, Department of Orthopedic Surgery, Columbia University Medical Center, New York, NY
- Travis R. Weiner, BS, Department of Orthopedic Surgery, Columbia University Medical Center, New York, NY
- Roshan P. Shah, MD, Department of Orthopedic Surgery, Columbia University Medical Center, New York, NY
- Jeffrey A. Geller, MD, Department of Orthopedic Surgery, Columbia University Medical Center, New York, NY
- H. John Cooper, MD, Department of Orthopedic Surgery, Columbia University Medical Center, New York, NY
| | - H John Cooper
- Andrew N. Sawires, MD, Department of Orthopedic Surgery, Columbia University Medical Center, New York, NY
- Travis R. Weiner, BS, Department of Orthopedic Surgery, Columbia University Medical Center, New York, NY
- Roshan P. Shah, MD, Department of Orthopedic Surgery, Columbia University Medical Center, New York, NY
- Jeffrey A. Geller, MD, Department of Orthopedic Surgery, Columbia University Medical Center, New York, NY
- H. John Cooper, MD, Department of Orthopedic Surgery, Columbia University Medical Center, New York, NY
| |
Collapse
|
7
|
Zhang Z, Liu J, Wu X, Yan J. What are the sleep characteristics among early kidney transplant recipients? An objective and subjective measurement from China. PLoS One 2022; 17:e0277678. [PMID: 36413558 PMCID: PMC9681072 DOI: 10.1371/journal.pone.0277678] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2022] [Accepted: 11/01/2022] [Indexed: 11/24/2022] Open
Abstract
OBJECTIVE To evaluate the sleep quality by self-reported questionnaires and polysomnography (PSG) among early kidney transplant recipients (KTRs) and to further explore their correlation. DESIGN This was a prospective and cross-sectional analysis of the sleep characteristics among early kidney transplant recipients through an objective and subjective measurement. PARTICIPANTS Patients with end stage renal disease on the transplant waiting list and after kidney transplantation were from a major organ transplantation center in Southern China (n = 83). PRIMARY AND SECONDARY OUTCOME MEASUREMENTS Objective outcomes: PSG, noise and light. Subjective outcomes: demographic and clinical questionnaires, self-reported pain and Richards Campbell sleep questionnaire (RCSQ). After agreement with the informed consent, participants first completed demographic and clinical questionnaires, then worn the PSG within 5-10 days after kidney transplantation. Both noise, light and self-reported pain were monitored during sleep. After completion of PSG, the RCSQs were filled out next morning. RESULTS A total of 298 patients were recruited and 83 participants were finally analyzed. The total RCSQ mean score was 51.0±18.9mm. The prevalence of poor sleep quality among early KTRs was 45.1%. Most of PSG characteristics were significantly correlated with their corresponding RCSQ items. And the total RCSQ scores were significantly correlated with the number of awakenings, the N2 percentage and the total sleep time (r = 0.79, 0.47 and 0.40, P<0.05) respectively. Noise was a statistically significant factor affecting the subjective sleep quality. CONCLUSIONS The sleep quality in early KTRs measured by both PSG and RCSQ exhibits consistency with each other. Sleep disruption always remains a substantial problem and is affected by self-reported noise among early KTRs. The RCSQ is easily applicable and interpretable so that it can be used for future daily clinical practice.
Collapse
Affiliation(s)
- Zhihao Zhang
- School of Public Administration, Central South University, Changsha, Hunan, China
| | - Jia Liu
- Xiangya Nursing School, Central South University, Changsha, Hunan, China
- Transplantation Center, The Third Xiangya Hospital of Central South University, Changsha, China
| | - XiaoXia Wu
- Department of Nursing, The Third Xiangya Hospital of Central South University, Changsha, Hunan, China
- * E-mail: (JY); (XW)
| | - Jin Yan
- Xiangya Nursing School, Central South University, Changsha, Hunan, China
- Department of Nursing, The Third Xiangya Hospital of Central South University, Changsha, Hunan, China
- * E-mail: (JY); (XW)
| |
Collapse
|
8
|
An Automated Algorithm for Determining Sleep Using Single-Channel Electroencephalography to Detect Delirium: A Prospective Observational Study in Intensive Care Units. Healthcare (Basel) 2022; 10:healthcare10091776. [PMID: 36141389 PMCID: PMC9498606 DOI: 10.3390/healthcare10091776] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2022] [Revised: 09/11/2022] [Accepted: 09/13/2022] [Indexed: 11/17/2022] Open
Abstract
The relationship between polysomnography-based objective sleep and delirium in the intensive care unit (ICU) is inconsistent across studies, suggesting limitations in manually determining the sleep stage of critically ill patients. We objectively measured 24-h sleep using a single-channel electroencephalogram (SleepScope [SS]) and an under-mattress sleep monitor (Nemuri SCAN [NSCAN]), both of which have independent algorithms that automatically determine sleep and wakefulness. Eighteen patients (median age, 68 years) admitted to the ICU after valvular surgery or coronary artery bypass grafting were included, and their sleep time was measured one day after extubation. The median total sleep times (TSTs) measured by SS (TST-SS) and NSCAN were 548 (48−1050) and 1024 (462−1257) min, respectively. Two patients with delirium during the 24-h sleep measurement had very short TST-SS of 48 and 125 min, and the percentage of daytime sleep accounted for >80% in both SS and NSCAN. This preliminary case series showed marked sleep deprivation and increased rates of daytime sleeping in ICU patients with delirium. Although data accuracy from under-mattress sleep monitors is contentious, automated algorithmic sleep/wakefulness determination using a single-channel electroencephalogram may be useful in detecting delirium in ICU patients and could even be superior to polysomnography.
Collapse
|
9
|
Ahuja M, Siddhpuria S, Reppas‐Rindlisbacher C, Wong E, Gormley J, Lee J, Patterson C. Sleep monitoring challenges in patients with neurocognitive disorders: A cross-sectional analysis of missing data from activity trackers. Health Sci Rep 2022; 5:e608. [PMID: 35509396 PMCID: PMC9059179 DOI: 10.1002/hsr2.608] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2021] [Revised: 02/14/2022] [Accepted: 02/19/2022] [Indexed: 11/23/2022] Open
Abstract
Background and Aims Activity monitors, such as Fitbits®, are being used increasingly for research purposes and data have been validated in healthy community-dwelling older adults. Given the lack of research in older adults with neurocognitive disorders, we investigated the consistency of sleep data recorded from a wrist-worn activity monitor in this population. Methods Fitbit® activity monitors were worn by hospitalized older adults as part of a parent study investigating sleep and step count in patients recovering from hip fracture surgery in a tertiary care academic hospital in Hamilton, Canada between March 2018 and June 2019. In this secondary analysis, we compared the proportion of missing sleep data between participants with and without a neurocognitive disorder and used a multivariable model to assess the association between neurocognitive disorder and missing sleep data. Results Of 67 participants included in the analysis, 22 had a neurocognitive disorder (median age: 86.5 years). Sleep data were missing for 47% of the neurocognitive disorder group and 23% of the non-neurocognitive disorder group. The presence of a neurocognitive disorder was associated with an increased likelihood of missing sleep data using the Fitbit® activity monitors (adjusted odds ratio: 3.41; 95% confidence interval: 1.06-11.73, p = 0.04). Conclusion The inconsistent nature of sleep data tracking in hospitalized older adults with neurocognitive disorders highlights the challenges of using interventions in patient populations who are often excluded from validation studies. As opportunities expand for activity monitoring in persons with neurocognitive disorders, novel technologies not previously studied in this group should be used with caution.
Collapse
Affiliation(s)
- Manan Ahuja
- Division of Geriatric Medicine, Department of MedicineMcMaster UniversityHamiltonOntarioCanada
| | - Shailee Siddhpuria
- Department of Undergraduate MedicineUniversity of British ColumbiaVancouverBritish ColumbiaCanada
| | | | - Eric Wong
- Division of Geriatric Medicine, Department of MedicineUniversity of TorontoTorontoOntarioCanada
| | - Jessica Gormley
- Division of Plastic Surgery, Department of SurgeryMcMaster UniversityHamiltonOntarioCanada
| | - Justin Lee
- Division of Geriatric Medicine, Department of MedicineMcMaster UniversityHamiltonOntarioCanada
| | - Christopher Patterson
- Division of Geriatric Medicine, Department of MedicineMcMaster UniversityHamiltonOntarioCanada
| |
Collapse
|
10
|
Guisasola-Rabes M, Solà-Enriquez B, Vélez-Pereira AM, de Nadal M. Noise Levels and Sleep in a Surgical ICU. J Clin Med 2022; 11:jcm11092328. [PMID: 35566455 PMCID: PMC9105004 DOI: 10.3390/jcm11092328] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2022] [Revised: 04/06/2022] [Accepted: 04/17/2022] [Indexed: 11/16/2022] Open
Abstract
Sleep is disturbed in critically ill patients and is a frequently overlooked complication. The aim of our study is to evaluate the impact of sound levels in our surgical ICU on our patients’ sleep on the first night of admission. The study was performed in a tertiary care university hospital, in a 12-bed surgical ICU. Over a 6-week period, a total of 148 adult, non-intubated and non-sedated patients completed the study. During this six-week period, sound levels were continuously measured using a type II sound level meter. Sleep quality was evaluated using the Richards–Campbell Sleep Questionnaire (RCSQ), which was completed both by patients and nurses on the first morning after admission. A non-significant correlation was found between night sound levels and sleep quality in the overall sample (r = −1.83, 95% CI; −4.54 to 0.88, p = 0.19). After multivariable analysis, a correlation was found between higher sound levels at night and lower RCSQ evaluations (r = −3.92, 95% CI; −7.57 to −0.27, p = 0.04). We found a significant correlation between lower sound levels at night and a better quality of sleep in our patients; for each 1 dBA increase in LAFeq sound levels at night, patients scored 3.92 points lower on the sleep questionnaire.
Collapse
Affiliation(s)
- Maria Guisasola-Rabes
- Anaesthesiology Department, Hospital Vall d’Hebron, Universitat Autònoma de Barcelona, Passeig de la Vall d’Hebrón 119-129, 08035 Barcelona, Spain; (B.S.-E.); (M.d.N.)
- Correspondence: ; Tel.: +34-932746004
| | - Berta Solà-Enriquez
- Anaesthesiology Department, Hospital Vall d’Hebron, Universitat Autònoma de Barcelona, Passeig de la Vall d’Hebrón 119-129, 08035 Barcelona, Spain; (B.S.-E.); (M.d.N.)
| | - Andrés M. Vélez-Pereira
- Departamento de Ingeniería Mecánica, Facultad de Ingeniería, Universidad de Tarapacá, Avenue 18 de Septiembre 2222, Arica 1000007, Chile;
| | - Miriam de Nadal
- Anaesthesiology Department, Hospital Vall d’Hebron, Universitat Autònoma de Barcelona, Passeig de la Vall d’Hebrón 119-129, 08035 Barcelona, Spain; (B.S.-E.); (M.d.N.)
| |
Collapse
|
11
|
Ellithorpe ME, Ulusoy E, Eden A, Hahn L, Yang CL, Tucker RM. The complicated impact of media use before bed on sleep: Results from a combination of objective EEG sleep measurement and media diaries. J Sleep Res 2022; 31:e13551. [PMID: 35137471 DOI: 10.1111/jsr.13551] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2021] [Revised: 01/04/2022] [Accepted: 01/04/2022] [Indexed: 12/21/2022]
Abstract
Media use has been linked to sleep disturbance, but the results are inconsistent. This study explores moderating conditions. A media diary study with 58 free-living adults measured the time spent with media before bed, the location of use, and multitasking. Electroencephalography (EEG) captured bedtime, total sleep time, and the percent of time spent in deep (Stage N3), and rapid eye movement (REM) sleep. Media use in the hour before sleep onset was associated with an earlier bedtime. If the before bed use did not involve multitasking and was conducted in bed, that use was also associated with more total sleep time. Media use duration was positively associated with (later) bedtime and negatively associated with total sleep time. Sleep quality, operationalised as the percent of total sleep time spent in N3 and REM sleep, was unaffected by media use before bed. Bedtime media use might not be as detrimental for sleep as some previous research has shown. Important contextual variables moderate the relationship, such as location, multitasking, and session length.
Collapse
Affiliation(s)
| | - Ezgi Ulusoy
- Department of Communication, Michigan State University, East Lansing, MI, USA
| | - Allison Eden
- Department of Communication, Michigan State University, East Lansing, MI, USA
| | - Lindsay Hahn
- Department of Communication, University of Buffalo, Buffalo, NY, USA
| | - Chia-Lun Yang
- Department of Food Science and Human Nutrition, Michigan State University, East Lansing, MI, USA
| | - Robin M Tucker
- Department of Food Science and Human Nutrition, Michigan State University, East Lansing, MI, USA
| |
Collapse
|
12
|
Morales-Cané I, Moral-Arroyo JA, Debbia F, Guler I, Llamas-Recio F, Jiménez-Pastor JM, de la Cruz López-Carrasco J, Acuña-Castroviejo D, Rodríguez-Borrego MA, López-Soto PJ. Impact of sound levels on physiological and consciousness state of cardiovascular patients. Nurs Crit Care 2022; 27:240-250. [PMID: 35052015 DOI: 10.1111/nicc.12746] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2021] [Revised: 12/04/2021] [Accepted: 12/11/2021] [Indexed: 01/14/2023]
Abstract
BACKGROUND Patients treated in intensive care units (ICUs) experience life-threatening medical conditions but some external factors in ICUs do not help or even adversely affect and complicate their evolution. Among others, such factors include noise pollution due to alarms and medical clinical equipment, as well as the activities of the health care personnel themselves. AIM This study aimed to evaluate the influence of elevated sound levels on physiological variables and the consciousness state of patients treated in a cardiovascular area in an ICU. DESIGN A longitudinal study with several observations was carried out during 1 month in the cardiovascular area of an ICU of a third-level hospital in southern Spain. METHODS Sound levels were monitored in different work shifts and patients' physiological data and consciousness status were recorded. Generalized additive mixed models (GAMMs) were developed to detect the variability of the sound levels together with the vital parameters of the patients in the ICU. RESULTS Thirty-eight patients were included. The mean sound level was 54.09 dBA. The GAMM sound levels analysis showed a significant increase in sound levels from 4:30 p.m. to 8:00 p.m. (1.83 dBA; P < .001) and 8:00 p.m. to 11:30 p.m. (3.06 dBA; P < .001). An increase in heart rate (3.66 bpm; P < .001), respiratory rate (2.62 rpm; P < .001) and the Glasgow Coma Scale (0.50 units; P = .002) was detected during the 4:30 p.m.-8:30 p.m. PERIOD CONCLUSIONS Elevated sound levels in cardiovascular ICUs seem to influence positively the physiological and consciousness status of patients. Given the importance of the findings for patient safety, future intervention studies are recommended. RELEVANCE TO CLINICAL PRACTICE The finding of this study could translate into structural changes in ICU facilities, as well as the development of clinical practice guidelines that influence the behaviour of health care professionals.
Collapse
Affiliation(s)
- Ignacio Morales-Cané
- Department of Nursing, Instituto Maimónides de Investigación Biomédica de Córdoba (IMIBIC), Córdoba, Spain.,Department of Nursing, Pharmacology and Physiotherapy, Universidad de Córdoba, Córdoba, Spain.,Department of Nursing, Hospital Universitario Reina Sofía de Córdoba, Córdoba, Spain
| | - Juan Antonio Moral-Arroyo
- Department of Nursing, Instituto Maimónides de Investigación Biomédica de Córdoba (IMIBIC), Córdoba, Spain.,Department of Nursing, Pharmacology and Physiotherapy, Universidad de Córdoba, Córdoba, Spain.,Department of Nursing, Hospital Universitario Reina Sofía de Córdoba, Córdoba, Spain
| | - Fabio Debbia
- Department of Nursing, Instituto Maimónides de Investigación Biomédica de Córdoba (IMIBIC), Córdoba, Spain
| | - Ipek Guler
- Department of Nursing, Instituto Maimónides de Investigación Biomédica de Córdoba (IMIBIC), Córdoba, Spain
| | - Francisca Llamas-Recio
- Department of Nursing, Instituto Maimónides de Investigación Biomédica de Córdoba (IMIBIC), Córdoba, Spain.,Department of Nursing, Pharmacology and Physiotherapy, Universidad de Córdoba, Córdoba, Spain.,Department of Nursing, Hospital Universitario Reina Sofía de Córdoba, Córdoba, Spain
| | - José Manuel Jiménez-Pastor
- Department of Nursing, Instituto Maimónides de Investigación Biomédica de Córdoba (IMIBIC), Córdoba, Spain.,Department of Nursing, Pharmacology and Physiotherapy, Universidad de Córdoba, Córdoba, Spain.,Department of Nursing, Hospital Universitario Reina Sofía de Córdoba, Córdoba, Spain
| | - Juan de la Cruz López-Carrasco
- Department of Nursing, Instituto Maimónides de Investigación Biomédica de Córdoba (IMIBIC), Córdoba, Spain.,Department of Nursing, Pharmacology and Physiotherapy, Universidad de Córdoba, Córdoba, Spain.,Department of Nursing, Hospital Universitario Reina Sofía de Córdoba, Córdoba, Spain
| | - Darío Acuña-Castroviejo
- Department of Physiology, Faculty of Medicine, Centro de Investigación Biomédica, Parque Tecnológico de Ciencias de la Salud, Universidad de Granada, Granada, Spain
| | - María Aurora Rodríguez-Borrego
- Department of Nursing, Instituto Maimónides de Investigación Biomédica de Córdoba (IMIBIC), Córdoba, Spain.,Department of Nursing, Pharmacology and Physiotherapy, Universidad de Córdoba, Córdoba, Spain.,Department of Nursing, Hospital Universitario Reina Sofía de Córdoba, Córdoba, Spain
| | - Pablo Jesús López-Soto
- Department of Nursing, Instituto Maimónides de Investigación Biomédica de Córdoba (IMIBIC), Córdoba, Spain.,Department of Nursing, Pharmacology and Physiotherapy, Universidad de Córdoba, Córdoba, Spain.,Department of Nursing, Hospital Universitario Reina Sofía de Córdoba, Córdoba, Spain
| |
Collapse
|
13
|
Zhang X, Chang L, Pan SD, Yan FX. Dexmedetomidine Improves Non-rapid Eye Movement Stage 2 Sleep in Children in the Intensive Care Unit on the First Night After Laparoscopic Surgery. Front Pediatr 2022; 10:871809. [PMID: 35573948 PMCID: PMC9091560 DOI: 10.3389/fped.2022.871809] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/08/2022] [Accepted: 04/04/2022] [Indexed: 11/30/2022] Open
Abstract
BACKGROUND Previous studies have reported that children who were admitted to the ICU experienced a significant decrease in sleep quality compared to home. We investigated the effects of dexmedetomidine as an adjunct to sufentanil on the sleep in children admitted to the ICU on the first night after major surgery. METHODS This is a prospective study From January to February 2022. Clinical trial number: ChiCTR2200055768, http://www.chictr.org.cn. Fifty-four children aged 1-10 years old children undergoing major laparoscopic surgery were recruited and randomly assigned to either the DEX group, in which intravenous dexmedetomidine (0.3 ug/kg/h) and sufentanil (0.04 ug/kg/h) were continuously infused intravenously for post-operative analgesia; or the SUF group, in which only sufentanil (0.04 ug/kg/h) was continuously infused. Patients were monitored with polysomnography (PSG) on the first night after surgery for 12 h. PSG, sleep architecture, physiologic variables and any types of side effects related to anesthesia and analgesia were recorded. The differences between the two groups were assessed using the chi-square and Wilcoxon rank-sum tests. RESULTS Fifty-four children completed data collection, of which thirty-four were 1-6 years old and twenty were aged >6 years. Compared to the SUF group, subjects in the DEX group aged 1-6 years displayed increased stage 2 sleep duration (P = 0.02) and light sleep duration (P = 0.02). Subjects aged >6 years in the DEX group also displayed increased stage 2 sleep duration (P = 0.035) and light sleep duration (P = 0.018), but decreased REM sleep percentage (P = 0). Additionally, the heart rate and blood pressure results differed between age groups, with the heart rates of subjects aged >6 years in DEX group decreasing at most time points compared to SUF group (P < 0.05). CONCLUSION Dexmedetomidine prolonged N2 sleep and light sleep duration in the pediatric ICU after surgery but had different effects on the heart rate and blood pressure of subjects in different age groups.
Collapse
Affiliation(s)
- Xian Zhang
- Department of Anesthesiology, Capital Institute of Pediatrics Affiliated Children's Hospital, Chinese Academy of Medical Sciences/Peking Union Medical College, Beijing, China
| | - Li Chang
- Department of Respiratory Medicine, Capital Institute of Pediatrics Affiliated Children's Hospital, Beijing, China
| | - Shou-Dong Pan
- Department of Anesthesiology, Capital Institute of Pediatrics Affiliated Children's Hospital, Beijing, China
| | - Fu-Xia Yan
- Department of Anesthesiology, Fuwai Hospital, Chinese Academy of Medical Sciences/Peking Union Medical College, Beijing, China
| |
Collapse
|
14
|
Evaluation of Sleep Architecture using 24-hour Polysomnography in Patients Recovering from Critical Illness in an Intensive Care Unit and High Dependency Unit: a Longitudinal, Prospective, and Observational Study. J Crit Care Med (Targu Mures) 2021; 7:257-266. [PMID: 34934815 PMCID: PMC8647672 DOI: 10.2478/jccm-2021-0023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2021] [Accepted: 06/28/2021] [Indexed: 11/20/2022] Open
Abstract
Background and objective The sleep architecture of critically ill patients being treated in Intensive Care Units (ICU) and High Dependency Units (HDU) is frequently unsettled and inadequate both qualitatively and quantitatively. The study aimed to investigate and elucidate factors influencing sleep architecture and quality in ICU and HDU in a limited resource setting with financial constraints, lacking human resources and technology for routine monitoring of noise, light and sleep promotion strategies in ICU. Methods The study was longitudinal, prospective, hospital-based, analytic, and observational. Insomnia Severity Index (ISI) and the Epworth Sleepiness Scale (ESS) pre hospitalisation scores were recorded. Patients underwent 24-hour polysomnography (PSG) with the simultaneous monitoring of noise and light in their environments. Patients stabilised in ICU were transferred to HDU, where the 24-hour PSG with the simultaneous monitoring of noise and light in their environments was repeated. Following PSG, the Richards-Campbell Sleep Questionnaire (RCSQ) was employed to rate patients’ sleep in both the ICU and HDU. Results Of 46 screened patients, 26 patients were treated in the ICU and then transferred to the HDU. The mean (SD) of the study population’s mean (SD) age was 35.96 (11.6) years with a predominantly male population (53.2% (n=14)). The mean (SD) of the ISI and ESS scores were 6.88 (2.58) and 4.92 (1.99), respectively. The comparative analysis of PSG data recording from the ICU and HDU showed a statistically significant reduction in N1, N2 and an increase in N3 stages of sleep (p<0.05). Mean (SD) of RCSQ in the ICU and the HDU were 54.65 (7.70) and 60.19 (10.85) (p-value = 0.04) respectively. The disease severity (APACHE II) has a weak correlation with the arousal index but failed to reach statistical significance (coeff= 0.347, p= 0.083). Conclusion Sleep in ICU is disturbed and persisting during the recovery period in critically ill. However, during recovery, sleep architecture shows signs of restoration.
Collapse
|
15
|
Abstract
TOPIC Sleep in the intensive care unit can be poorly consolidated and highly fragmented. This review examines the neurobiology of normal and abnormal sleep, with a focus on the changes that occur in the intensive care unit environment. CLINICAL RELEVANCE Patients in the intensive care unit demonstrate a lack of rapid-eye-movement sleep and an inability to effectively transition from light to deep stages of sleep. These abnormalities can adversely affect hemodynamic parameters and physiological and psychological outcomes. PURPOSE To describe the brain mechanisms and electroencephalographic characteristics of wakefulness and the different stages of sleep. This review also describes how sleep can be altered by hospitalization in the intensive care unit and how nurses can design interventions that improve sleep and outcomes. CONTENT COVERED The review examines sleep mechanisms, including brain electrical activity, regulatory centers in the brain, and circadian and diurnal patterns of sleep and hemodynamic function. Nursing interventions for specific patient risk factors in the intensive care unit are proposed.
Collapse
Affiliation(s)
- Anne M Fink
- Anne M. Fink is an assistant professor in the Department of Biobehavioral Nursing Science, College of Nursing, University of Illinois at Chicago, Chicago, Illinois
| |
Collapse
|
16
|
Louzon PR, Andrews JL, Torres X, Pyles EC, Ali MH, Du Y, Devlin JW. Characterisation of ICU sleep by a commercially available activity tracker and its agreement with patient-perceived sleep quality. BMJ Open Respir Res 2021; 7:7/1/e000572. [PMID: 32332025 PMCID: PMC7204814 DOI: 10.1136/bmjresp-2020-000572] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2020] [Revised: 03/02/2020] [Accepted: 04/06/2020] [Indexed: 01/21/2023] Open
Abstract
Background A low-cost, quantitative method to evaluate sleep in the intensive care unit (ICU) that is both feasible for routine clinical practice and reliable does not yet exist. We characterised nocturnal ICU sleep using a commercially available activity tracker and evaluated agreement between tracker-derived sleep data and patient-perceived sleep quality. Patients and methods A prospective cohort study was performed in a 40-bed ICU at a community teaching hospital. An activity tracker (Fitbit Charge 2) was applied for up to 7 ICU days in English-speaking adults with an anticipated ICU stay ≥2 days and without mechanical ventilation, sleep apnoea, delirium, continuous sedation, contact isolation or recent anaesthesia. The Richards-Campbell Sleep Questionnaire (RCSQ) was administered each morning by a trained investigator. Results Available activity tracker-derived data for each ICU study night (20:00–09:00) (total sleep time (TST), number of awakenings (#AW), and time spent light sleep, deep sleep and rapid eye movement (REM) sleep) were downloaded and analysed. Across the 232 evaluated nights (76 patients), TST and RCSQ data were available for 232 (100%), #AW data for 180 (78%) and sleep stage data for 73 (31%). Agreement between TST (349±168 min) and RCSQ Score was moderate and significant (r=0.34; 95% CI 0.18 to 0.48). Agreement between #AW (median (IQR), 4 (2–9)) and RCSQ Score was negative and non-significant (r=−0.01; 95% CI −0.19 to 0.14). Agreement between time (min) spent in light (259 (182 to 328)), deep (43±29), and REM (47 (28–72)) sleep and RCSQ Score was moderate but non-significant (light (r=0.44, 95% CI −0.05 to 0.36); deep sleep (r=0.44, 95% CI −0.11 to 0.15) and REM sleep (r=0.44; 95% CI −0.21 to 0.21)). Conclusions A Fitbit Charge 2 when applied to non-intubated adults in an ICU consistently collects TST data but not #AW or sleep stage data at night. The TST moderately correlates with patient-perceived sleep quality; a correlation between either #AW or sleep stages and sleep quality was not found.
Collapse
Affiliation(s)
| | | | - Xavier Torres
- Department of Pharmacy, University of Chicago Medical Center, Chicago, Illinois, USA
| | - Eric C Pyles
- Department of Pharmacy, AdventHealth Orlando, Orlando, Florida, USA
| | - Mahmood H Ali
- Pulmonology, Central Florida Pulmonary Group PA, Orlando, Florida, USA
| | - Yuan Du
- Research Institute, AdventHealth Orlando, Orlando, Florida, USA
| | - John W Devlin
- School of Pharmacy, Northeastern University, Boston, Massachusetts, USA.,Division of Pulmonary, Critical Care and Sleep Medicine, Tufts Medical Center, Boston, Massachusetts, USA
| |
Collapse
|
17
|
Abstract
OBJECTIVES Numerous risk factors for sleep disruption in critically ill adults have been described. We performed a systematic review of all risk factors associated with sleep disruption in the ICU setting. DATA SOURCES PubMed, EMBASE, CINAHL, Web of Science, Cochrane Central Register for Controlled Trials, and Cochrane Database of Systematic Reviews. STUDY SELECTION English-language studies of any design published between 1990 and April 2018 that evaluated sleep in greater than or equal to 10 critically ill adults (> 18 yr old) and investigated greater than or equal to 1 potential risk factor for sleep disruption during ICU stay. We assessed study quality using Newcastle-Ottawa Scale or Cochrane Risk of Bias tool. DATA EXTRACTION We abstracted all data independently and in duplicate. Potential ICU sleep disruption risk factors were categorized into three categories based on how data were reported: 1) patient-reported reasons for sleep disruption, 2) patient-reported ratings of potential factors affecting sleep quality, and 3) studies reporting a statistical or temporal association between potential risk factors and disrupted sleep. DATA SYNTHESIS Of 5,148 citations, we included 62 studies. Pain, discomfort, anxiety/fear, noise, light, and ICU care-related activities are the most common and widely studied patient-reported factors causing sleep disruption. Patients rated noise and light as the most sleep-disruptive factors. Higher number of comorbidities, poor home sleep quality, home sleep aid use, and delirium were factors associated with sleep disruption identified in available studies. CONCLUSIONS This systematic review summarizes all premorbid, illness-related, and ICU-related factors associated with sleep disruption in the ICU. These findings will inform sleep promotion efforts in the ICU and guide further research in this field.
Collapse
|
18
|
Elías MN, Munro CL, Liang Z, Padilla Fortunatti CF, Calero K, Ji M. Nighttime Sleep Duration Is Associated With Length of Stay Outcomes Among Older Adult Survivors of Critical Illness. Dimens Crit Care Nurs 2021; 39:145-154. [PMID: 32251163 PMCID: PMC11110929 DOI: 10.1097/dcc.0000000000000411] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023] Open
Abstract
BACKGROUND Older adults who required mechanical ventilation while in an intensive care unit (ICU) require adequate sleep throughout recovery from critical illness. Poor post-ICU sleep quality may contribute to worsening impairments in physical, cognitive, or psychological status after critical illness, known as post-ICU syndrome. Previous research has evaluated post-ICU sleep with qualitative or mixed methods (eg, interviews, questionnaires). We proposed measurement of sleep with actigraphy. We hypothesized that nighttime sleep is associated with length of stay (LOS). OBJECTIVES The aims of this study were to describe sleep quality of previously mechanically ventilated older adults recently transferred out of ICU and explore relationships between sleep duration and LOS outcomes. METHODS We enrolled 30 older adults, 65 years and older, within 24 to 48 hours after ICU discharge. We collected actigraphy data on post-ICU sleep duration (total sleep time [TST]) and sleep fragmentation (wake time after sleep onset) over 2 consecutive nights. We explored associations between TST and LOS (in days) outcomes using multivariate regression. RESULTS Subjects' mean TST was 7.55 ± 2.52 hours, and mean wake time after sleep onset was 2.26 ± 0.17 hours. In exploratory regression analyses, longer ICU LOS (β = 0.543, P < .001) and longer length of mechanical ventilation (β = 0.420, P = .028) were associated with greater post-ICU TST, after adjusting for potential confounding factors. Total sleep time was prospectively associated with total hospital LOS (β = 0.535, P < .001). DISCUSSION Older ICU survivors demonstrate greater sleep duration and worse sleep fragmentation. Poor sleep may contribute to longer LOS, secondary to post-ICU syndrome and sequelae. We recommend nursing interventions to promote sleep consolidation throughout transitions of care in the acute post-ICU recovery period.
Collapse
Affiliation(s)
- Maya N Elías
- Maya N. Elías, PhD, MA, RN, is postdoctoral research fellow, School of Nursing & Health Studies, University of Miami, Coral Gables, Florida. Cindy L. Munro, PhD, ANP-BC, FAAN, FAANP, FAAAS, is dean and professor, School of Nursing & Health Studies, University of Miami, Coral Gables, Florida. Zhan Liang, PhD, MSN, RN, is assistant professor, School of Nursing & Health Studies, University of Miami, Coral Gables, Florida. Cristobal F. Padilla Fortunatti, MSN, is PhD student, School of Nursing & Health Studies, University of Miami, Coral Gables, Florida; and assistant clinical professor, School of Nursing, Pontificia Universidad Catolica de Chile, Santiago, Chile. Karel Calero, MD, is assistant professor, Department of Pulmonary, Critical Care & Sleep Medicine, College of Medicine, University of South Florida, Tampa, Florida. Ming Ji, PhD, is professor, College of Nursing, University of South Florida, Tampa, Florida
| | | | | | | | | | | |
Collapse
|
19
|
Abstract
Sleep is fundamental for everyday functioning, yet it is often negatively impacted in critically ill patients by the intensive care setting. With a focus on the neurological intensive care unit (NeuroICU), this narrative review summarizes methods of measuring sleep and addresses common causes of sleep disturbance in the hospital including environmental, pharmacological, and patient-related factors. The effects of sleep deprivation on the cardiovascular, pulmonary, immune, endocrine, and neuropsychological systems are discussed, with a focus on short-term deprivation in critically ill populations. Where evidence is lacking in the literature, long-term sleep deprivation studies and the effects of sleep deprivation in healthy individuals are also referenced. Lastly, strategies for the promotion of sleep in the NeuroICU are presented.
Collapse
|
20
|
Delaney LJ, Litton E, Melehan KL, Huang HCC, Lopez V, Van Haren F. The feasibility and reliability of actigraphy to monitor sleep in intensive care patients: an observational study. Crit Care 2021; 25:42. [PMID: 33514414 PMCID: PMC7844945 DOI: 10.1186/s13054-020-03447-8] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2020] [Accepted: 12/18/2020] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Sleep amongst intensive care patients is reduced and highly fragmented which may adversely impact on recovery. The current challenge for Intensive Care clinicians is identifying feasible and accurate assessments of sleep that can be widely implemented. The objective of this study was to investigate the feasibility and reliability of a minimally invasive sleep monitoring technique compared to the gold standard, polysomnography, for sleep monitoring. METHODS Prospective observational study employing a within subject design in adult patients admitted to an Intensive Care Unit. Sleep monitoring was undertaken amongst minimally sedated patients via concurrent polysomnography and actigraphy monitoring over a 24-h duration to assess agreement between the two methods; total sleep time and wake time. RESULTS We recruited 80 patients who were mechanically ventilated (24%) and non-ventilated (76%) within the intensive care unit. Sleep was found to be highly fragmented, composed of numerous sleep bouts and characterized by abnormal sleep architecture. Actigraphy was found to have a moderate level of overall agreement in identifying sleep and wake states with polysomnography (69.4%; K = 0.386, p < 0.05) in an epoch by epoch analysis, with a moderate level of sensitivity (65.5%) and specificity (76.1%). Monitoring accuracy via actigraphy was improved amongst non-ventilated patients (specificity 83.7%; sensitivity 56.7%). Actigraphy was found to have a moderate correlation with polysomnography reported total sleep time (r = 0.359, p < 0.05) and wakefulness (r = 0.371, p < 0.05). Bland-Altman plots indicated that sleep was underestimated by actigraphy, with wakeful states overestimated. CONCLUSIONS Actigraphy was easy and safe to use, provided moderate level of agreement with polysomnography in distinguishing between sleep and wakeful states, and may be a reasonable alternative to measure sleep in intensive care patients. Clinical Trial Registration number ACTRN12615000945527 (Registered 9/9/2015).
Collapse
Affiliation(s)
- L J Delaney
- School of Nursing, Queensland University of Technology, Brisbane, QLD, Australia.
- Medicine and Health Sciences, Australian National University, Canberra, ACT, Australia.
| | - E Litton
- Intensive Care Unit, Fiona Stanley Hospital, Perth, WA, Australia
- Intensive Care Unit, St John of God Hospital Subiaco, Perth, WA, Australia
| | - K L Melehan
- Sleep Unit, Royal Prince Alfred Hospital, Sydney, NSW, Australia
- Faculty of Medicine and Health, University of Sydney, Sydney, NSW, Australia
| | - H-C C Huang
- Medicine and Health Sciences, Australian National University, Canberra, ACT, Australia
- Respiratory and Sleep Medicine, Canberra Hospital, Woden, ACT, Australia
- Canberra Obesity Management Service, Canberra Health Services, Belconnen, ACT, Australia
| | - V Lopez
- School of Nursing, Hubei University of Medicine, Shiyan, China
- School of Nursing, University of Tasmania, Hobart, TAS, Australia
| | - F Van Haren
- Medicine and Health Sciences, Australian National University, Canberra, ACT, Australia
- Intensive Care Unit, Canberra Hospital, Garran, ACT, Australia
| |
Collapse
|
21
|
Abstract
TOPIC Sleep deprivation in the intensive care unit setting. CLINICAL RELEVANCE The Society of Critical Care Medicine has identified sleep deprivation as a significant contributor to the development of delirium in adult patients in the intensive care unit. Thus, preventing and managing sleep deprivation is important in reducing the incidence of delirium in this patient population. A multifaceted and multidisciplinary approach to promoting sleep in the intensive care unit setting that includes sleep hygiene routines, nursing care plans, and appropriate medication regimens may improve patient outcomes, including reducing delirium. PURPOSE OF ARTICLE To review the current literature on sleep deprivation in the intensive care unit setting and present care guidelines in a concise format. This information may be helpful in the development of clinical tools and may guide future quality improvement projects aimed at reducing delirium through sleep promotion in critical care patients. CONTENT COVERED A review of current literature and national organization recommendations revealed consistent themes in addressing the problem of sleep deprivation in the intensive care unit. Modifiable and nonmodifiable risk factors included frequent care interactions, light, noise, medication effects, and preexisting sleep problems.
Collapse
Affiliation(s)
- Jessica Grimm
- Jessica Grimm is an associate professor, School of Nursing, College of Health and Human Services, Touro University Nevada, Henderson, Nevada
| |
Collapse
|
22
|
Nilius G, Richter M, Schroeder M. Updated Perspectives on the Management of Sleep Disorders in the Intensive Care Unit. Nat Sci Sleep 2021; 13:751-762. [PMID: 34135650 PMCID: PMC8200142 DOI: 10.2147/nss.s284846] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/21/2021] [Accepted: 05/19/2021] [Indexed: 12/28/2022] Open
Abstract
Sleep disorders and circadian dysrhythmias are extremely prevalent in critically ill patients. Impaired sleep has a variety of etiologies, exhibits a wide range of negative effects and, moreover, might deteriorate the patient's prognosis. Despite a number of scientific findings and increased awareness, the importance of sleep optimization is still lower on the list of priories in the intensive care unit (ICU). The techniques of measuring and the evaluation of sleep quantity and quality are a great challenge in the ICU setting. The subjective and objective tools of sleep validation continue to suffer from deficiencies. Treatment approaches to improve the critically ill patient's sleep have focused on non-pharmacologic and pharmacologic strategies with some promising results. But pharmacological interventions alone could not provide sufficient patient benefit. Being aware and knowing of sleep problems and the beneficial effect of the necessary therapies in ICU patients requires greater acceptance. The application of available methods and the development of new methods to prevent sleep disorders in the ICU offer the potential to improve the critically ill patient's outcome.
Collapse
Affiliation(s)
- Georg Nilius
- Kliniken Essen Mitte, Department of Pneumology, Essen, Germany.,Witten/Herdecke University, Department of Internal Medicine, Witten, Germany
| | | | - Maik Schroeder
- Kliniken Essen Mitte, Department of Pneumology, Essen, Germany
| |
Collapse
|
23
|
Serenko A, Turel O, Bohonis H. The impact of social networking sites use on health-related outcomes among UK adolescents. COMPUTERS IN HUMAN BEHAVIOR REPORTS 2021. [DOI: 10.1016/j.chbr.2021.100058] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023] Open
|
24
|
Albanesi B, Nania T, Barello S, Villa G, Rosa D, Caruso R, Udugampolage NS, Casole L, Dellafiore F. Lived experience of patients in
ICU
after cardiac surgery: A phenomenological study. Nurs Crit Care 2020; 27:204-213. [DOI: 10.1111/nicc.12562] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2020] [Revised: 09/21/2020] [Accepted: 09/24/2020] [Indexed: 12/23/2022]
Affiliation(s)
- Beatrice Albanesi
- Department of Medicine and Psychology Sapienza University Rome Italy
| | - Tiziana Nania
- Health Professions Research and Development Unit IRCCS Policlinico San Donato Milan Italy
| | - Serena Barello
- Department of Psychology, EngageMinds Hub Research Center Università Cattolica del Sacro Cuore Milan Italy
| | | | - Debora Rosa
- IRCCS Istituto Auxologico Italiano Milan Italy
| | - Rosario Caruso
- Health Professions Research and Development Unit IRCCS Policlinico San Donato Milan Italy
| | | | - Lorenzo Casole
- Health Professions Research and Development Unit IRCCS Policlinico San Donato Milan Italy
| | - Federica Dellafiore
- Health Professions Research and Development Unit IRCCS Policlinico San Donato Milan Italy
| |
Collapse
|
25
|
Kaseda ET, Levine AJ. Post-traumatic stress disorder: A differential diagnostic consideration for COVID-19 survivors. Clin Neuropsychol 2020; 34:1498-1514. [PMID: 32847484 DOI: 10.1080/13854046.2020.1811894] [Citation(s) in RCA: 97] [Impact Index Per Article: 24.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Objective: SARS-CoV-2 infection and its oft-associated illness COVID-19 may lead to neuropsychological deficits, either through direct mechanisms (i.e., neurovirulance) or indirect mechanisms, most notably complications caused by the virus (e.g., stroke) or medical procedures (e.g., intubation). The history of past human coronavirus outbreaks resulting in similar health emergencies suggests there will be a substantial prevalence of post-traumatic stress disorder (PTSD) among COVID-19 survivors. To prepare neuropsychologists for the difficult task of differentiating PTSD-related from neuropathology-related deficits in the oncoming wave of COVID-19 survivors, we integrate research across a spectrum of related areas.Methods: Several areas of literature were reviewed: psychiatric, neurologic, and neuropathological outcomes of SARS and MERS patients; neurological outcomes in COVID-19 survivors; PTSD associated with procedures common to COVID-19 patients; and differentiating neuropsychological deficits due to PTSD from those due to acquired brain injuries in other patient groups.Conclusions: Heightened risk of PTSD occurred in MERS and SARS survivors. While data concerning COVID-19 is lacking, PTSD is known to occur in patient groups who undergo similar hospital courses, including ICU survivors, patients who are intubated and mechanically ventilated, and those that experience delirium. Research with patients who develop PTSD in the context of mild traumatic brain injury further suggests that PTSD may account for some or all of a patient's subjective cognitive complaints and neuropsychological test performance. Recommendations are provided for assessing PTSD in the context of COVID-19.
Collapse
Affiliation(s)
- Erin T Kaseda
- Department of Psychology, Rosalind Franklin University of Medicine and Science, North Chicago, IL, USA
| | - Andrew J Levine
- Department of Neurology, David Geffen School of Medicine, University of California, Los Angeles, Los Angeles, CA, USA
| |
Collapse
|
26
|
Farasat S, Dorsch JJ, Pearce AK, Moore AA, Martin JL, Malhotra A, Kamdar BB. Sleep and Delirium in Older Adults. CURRENT SLEEP MEDICINE REPORTS 2020; 6:136-148. [PMID: 32837850 PMCID: PMC7382993 DOI: 10.1007/s40675-020-00174-y] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Abstract
Purpose of Review Poor sleep and delirium are common in older patients but recognition and management are challenging, particularly in the intensive care unit (ICU) setting. The purpose of this review is to highlight current research on these conditions, their inter-relationship, modes of measurement, and current approaches to management. Recent Findings Sleep deprivation and delirium are closely linked, with shared clinical characteristics, risk factors, and neurochemical abnormalities. Acetylcholine and dopamine are important neurochemicals in the regulation of sleep and wakefulness and their dysregulation has been implicated in development of delirium. In the hospital setting, poor sleep and delirium are associated with adverse outcomes; non-pharmacological interventions are recommended, but tend to be resource intensive and hindered by a lack of reliable sleep measurement tools. Delirium is easier to identify, with validated tools available in both ICU and non-ICU settings; however, an optimal treatment approach remains unclear. Antipsychotics are used widely to prevent and treat delirium, although the efficacy data are equivocal. Bundled non-pharmacologic approaches represent a promising framework for prevention and management. Summary Poor sleep and delirium are common problems in older patients. While these phenomena appear linked, a causal relationship is not clearly established. At present, there are no established sleep-focused guidelines for preventing or treating delirium. Novel interventions are needed that address poor sleep and delirium, particularly in older adults.
Collapse
Affiliation(s)
- Sadaf Farasat
- Division of Geriatrics and Gerontology, University of California San Diego, 9350 Campus Point Drive, La Jolla, CA 92037 USA
| | - Jennifer J Dorsch
- Johns Hopkins Medicine, Baltimore, MD USA.,Johns Hopkins Medicine, Howard County General Hospital, 5755 Cedar Ln, Columbia, MD 21044 USA
| | - Alex K Pearce
- Division of Pulmonary, Critical Care and Sleep Medicine, University of California San Diego School of Medicine, 9300 Campus Point Drive #7381, La Jolla, CA 92037-7381 USA
| | - Alison A Moore
- Division of Geriatrics and Gerontology, University of California San Diego, 9500 Gilman Drive, MC 0665, La Jolla, CA 92093-0665 USA
| | - Jennifer L Martin
- VA Greater Los Angeles Healthcare System, 16111 Plummer St. (11E), North Hills, CA 91343 USA.,David Geffen School of Medicine at the University of California, Los Angeles, CA USA
| | - Atul Malhotra
- Division of Pulmonary, Critical Care and Sleep Medicine, University of California San Diego School of Medicine, 9300 Campus Point Drive #7381, La Jolla, CA 92037-7381 USA
| | - Biren B Kamdar
- Division of Pulmonary, Critical Care and Sleep Medicine, University of California San Diego School of Medicine, 9300 Campus Point Drive #7381, La Jolla, CA 92037-7381 USA
| |
Collapse
|
27
|
Azimaraghi O, Hammer M, Santer P, Platzbecker K, Althoff FC, Patrocinio M, Grabitz SD, Wongtangman K, Rumyantsev S, Xu X, Schaefer MS, Fuller PM, Subramaniam B, Eikermann M. Study protocol for a randomised controlled trial evaluating the effects of the orexin receptor antagonist suvorexant on sleep architecture and delirium in the intensive care unit. BMJ Open 2020; 10:e038474. [PMID: 32690536 PMCID: PMC7371384 DOI: 10.1136/bmjopen-2020-038474] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/08/2022] Open
Abstract
INTRODUCTION Insomnia frequently occurs in patients admitted to an intensive care unit (ICU). Sleep-promoting agents may reduce rapid eye movement sleep and have deliriogenic effects. Suvorexant (Belsomra) is an orexin receptor antagonist with Food and Drug Administration (FDA) approval for the treatment of adult insomnia, which improves sleep onset and maintenance as well as subjective measures of quality of sleep. This trial will evaluate the efficacy of postoperative oral suvorexant treatment on night-time wakefulness after persistent sleep onset as well as the incidence and duration of delirium among adult cardiac surgical patients. METHODS AND ANALYSIS In this single-centre, randomised, double-blind, placebo-controlled trial, we will enrol 120 patients, aged 60 years or older, undergoing elective cardiac surgery with planned postoperative admission to the ICU. Participants will be randomised to receive oral suvorexant (20 mg) or placebo one time a day starting the night after extubation. The primary outcome will be wakefulness after persistent sleep onset. The secondary outcome will be total sleep time. Exploratory outcomes will include time to sleep onset, incidence of postoperative in-hospital delirium, number of delirium-free days and subjective sleep quality. ETHICS AND DISSEMINATION Ethics approval was obtained through the 'Committee on Clinical Investigations' at Beth Israel Deaconess Medical Center (protocol number 2019P000759). The findings will be published in peer-reviewed journals. TRIAL REGISTRATION NUMBER This trial has been registered at clinicaltrials.gov on 17 September 2019 (NCT04092894).
Collapse
Affiliation(s)
- Omid Azimaraghi
- Department of Anesthesia, Critical Care and Pain Medicine, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, Massachusetts, USA
| | - Maximilian Hammer
- Department of Anesthesia, Critical Care and Pain Medicine, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, Massachusetts, USA
| | - Peter Santer
- Department of Anesthesia, Critical Care and Pain Medicine, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, Massachusetts, USA
| | - Katharina Platzbecker
- Department of Anesthesia, Critical Care and Pain Medicine, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, Massachusetts, USA
| | - Friederike C Althoff
- Department of Anesthesia, Critical Care and Pain Medicine, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, Massachusetts, USA
| | - Maria Patrocinio
- Department of Anesthesia, Critical Care and Pain Medicine, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, Massachusetts, USA
| | - Stephanie D Grabitz
- Department of Anesthesia, Critical Care and Pain Medicine, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, Massachusetts, USA
| | - Karuna Wongtangman
- Department of Anesthesiology, Faculty of Medicine, Siriraj Hospital, Mahidol University, Bangkok, Thailand
| | - Sandra Rumyantsev
- Pharmacy, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, Massachusetts, USA
| | - Xinling Xu
- Department of Anesthesia, Critical Care and Pain Medicine, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, Massachusetts, USA
| | - Maximilian S Schaefer
- Department of Anesthesia, Critical Care and Pain Medicine, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, Massachusetts, USA
| | - Patrick M Fuller
- Department of Neurology, Program in Neuroscience and Division of Sleep Medicine, Beth Israel Deaconess Medical Center, Boston, Massachusetts, USA
| | - Balachundhar Subramaniam
- Department of Anesthesia, Critical Care and Pain Medicine, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, Massachusetts, USA
| | - Matthias Eikermann
- Department of Anesthesia, Critical Care and Pain Medicine, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, Massachusetts, USA
| |
Collapse
|
28
|
Cole JL. Steroid-Induced Sleep Disturbance and Delirium: A Focused Review for Critically Ill Patients. Fed Pract 2020; 37:260-267. [PMID: 32669778 PMCID: PMC7357890] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
OBJECTIVE Insomnia and delirium have gained much attention since the publication of recent guidelines for the management in critically ill adults. Neurologic effects such as sleep disturbance, psychosis, and delirium are commonly cited adverse effects (AEs) of corticosteroids. Steroid use is considered a modifiable risk factor in intensive care unit patients; however, reported mechanisms are often lacking. This focused review will specifically evaluate the effects of steroids on sleep deprivation, psychosis, delirium, and what is known about these effects in a critically ill population. OBSERVATIONS The medical literature proposes 3 pathways primarily responsible for neurocognitive AEs of steroids: behavior changes through modification of the hypothalamic-pituitary-adrenal axis, changes in natural sleep-wake cycles, and hyperarousal caused by modification in neuroinhibitory pathways. Initial search fields produced 285 articles. Case reports, reviews, letters, and articles pertaining to primary care or palliative populations were excluded, leaving 8 relevant articles for inclusion. CONCLUSIONS Although steroid therapy often cannot be altered in the critically ill population, research showed that steroid overuse is common in intensive care units. Minimizing dosage and duration are important ways clinicians can mitigate AEs.
Collapse
Affiliation(s)
- Jennifer L Cole
- is a Critical Care and Internal Medicine Pharmacy Specialist at the Veterans Health Care System of the Ozarks in Fayetteville, Arkansas
| |
Collapse
|
29
|
Reinke L, Haveman M, Horsten S, Falck T, van der Heide EM, Pastoor S, van der Hoeven JH, Absalom AR, Tulleken JE. The importance of the intensive care unit environment in sleep-A study with healthy participants. J Sleep Res 2019; 29:e12959. [PMID: 31833118 PMCID: PMC7154670 DOI: 10.1111/jsr.12959] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2019] [Revised: 09/20/2019] [Accepted: 11/12/2019] [Indexed: 11/29/2022]
Abstract
Sleep disruption is common among intensive care unit patients, with potentially detrimental consequences. Environmental factors are thought to play a central role in ICU sleep disruption, and so it is unclear why environmental interventions have shown limited improvements in objectively assessed sleep. In critically ill patients, it is difficult to isolate the influence of environmental factors from the varying contributions of non‐environmental factors. We thus investigated the effects of the ICU environment on self‐reported and objective sleep quality in 10 healthy nurses and doctors with no history of sleep pathology or current or past ICU employment participated. Their sleep at home, in an unfamiliar environment (‘Control’), and in an active ICU (‘ICU’) was evaluated using polysomnography and the Richard‐Campbell Sleep Questionnaire. Environmental sound, light and temperature exposure were measured continuously. We found that the control and ICU environment were noisier and warmer, but not darker than the home environment. Sleep on the ICU was perceived as qualitatively worse than in the home and control environment, despite relatively modest effects on polysomnography parameters compared with home sleep: mean total sleep times were reduced by 48 min, mean rapid eye movement sleep latency increased by 45 min, and the arousal index increased by 9. Arousability to an awake state by sound was similar. Our results suggest that the ICU environment plays a significant but partial role in objectively assessed ICU sleep impairment in patients, which may explain the limited improvement of objectively assessed sleep after environmental interventions.
Collapse
Affiliation(s)
- Laurens Reinke
- Department of Critical Care, University Medical Center Groningen, University of Groningen, Groningen, the Netherlands
| | - Marjolein Haveman
- Department of Critical Care, University Medical Center Groningen, University of Groningen, Groningen, the Netherlands
| | - Sandra Horsten
- Department of Critical Care, University Medical Center Groningen, University of Groningen, Groningen, the Netherlands
| | | | | | | | - Johannes H van der Hoeven
- Department of Neurology, University Medical Center Groningen, University of Groningen, Groningen, the Netherlands
| | - Anthony R Absalom
- Department of Anaesthesiology, University Medical Center Groningen, University of Groningen, Groningen, the Netherlands
| | - Jaap E Tulleken
- Department of Critical Care, University Medical Center Groningen, University of Groningen, Groningen, the Netherlands
| |
Collapse
|
30
|
Clinical Practice Guidelines for the Prevention and Management of Pain, Agitation/Sedation, Delirium, Immobility, and Sleep Disruption in Adult Patients in the ICU. Crit Care Med 2019; 46:e825-e873. [PMID: 30113379 DOI: 10.1097/ccm.0000000000003299] [Citation(s) in RCA: 1750] [Impact Index Per Article: 350.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
OBJECTIVE To update and expand the 2013 Clinical Practice Guidelines for the Management of Pain, Agitation, and Delirium in Adult Patients in the ICU. DESIGN Thirty-two international experts, four methodologists, and four critical illness survivors met virtually at least monthly. All section groups gathered face-to-face at annual Society of Critical Care Medicine congresses; virtual connections included those unable to attend. A formal conflict of interest policy was developed a priori and enforced throughout the process. Teleconferences and electronic discussions among subgroups and whole panel were part of the guidelines' development. A general content review was completed face-to-face by all panel members in January 2017. METHODS Content experts, methodologists, and ICU survivors were represented in each of the five sections of the guidelines: Pain, Agitation/sedation, Delirium, Immobility (mobilization/rehabilitation), and Sleep (disruption). Each section created Population, Intervention, Comparison, and Outcome, and nonactionable, descriptive questions based on perceived clinical relevance. The guideline group then voted their ranking, and patients prioritized their importance. For each Population, Intervention, Comparison, and Outcome question, sections searched the best available evidence, determined its quality, and formulated recommendations as "strong," "conditional," or "good" practice statements based on Grading of Recommendations Assessment, Development and Evaluation principles. In addition, evidence gaps and clinical caveats were explicitly identified. RESULTS The Pain, Agitation/Sedation, Delirium, Immobility (mobilization/rehabilitation), and Sleep (disruption) panel issued 37 recommendations (three strong and 34 conditional), two good practice statements, and 32 ungraded, nonactionable statements. Three questions from the patient-centered prioritized question list remained without recommendation. CONCLUSIONS We found substantial agreement among a large, interdisciplinary cohort of international experts regarding evidence supporting recommendations, and the remaining literature gaps in the assessment, prevention, and treatment of Pain, Agitation/sedation, Delirium, Immobility (mobilization/rehabilitation), and Sleep (disruption) in critically ill adults. Highlighting this evidence and the research needs will improve Pain, Agitation/sedation, Delirium, Immobility (mobilization/rehabilitation), and Sleep (disruption) management and provide the foundation for improved outcomes and science in this vulnerable population.
Collapse
|
31
|
Abstract
Sleep is a behavioral phenomenon conserved among mammals and some invertebrates, yet the biological functions of sleep are still being elucidated. In humans, sleep time becomes shorter, more fragmented, and of poorer quality with advancing age. Epidemiologically, the development of age-related neurodegenerative diseases such as Alzheimer's and Parkinson's disease is associated with pronounced sleep disruption, whereas emerging mechanistic studies suggest that sleep disruption may be causally linked to neurodegenerative pathology, suggesting that sleep may represent a key therapeutic target in the prevention of these conditions. In this review, we discuss the physiology of sleep, the pathophysiology of neurodegenerative disease, and the current literature supporting the relationship between sleep, aging, and neurodegenerative disease.
Collapse
Affiliation(s)
- Thierno M Bah
- Department of Anesthesiology and Perioperative Medicine, Oregon Health & Science University, Portland, Oregon, USA
| | - James Goodman
- Department of Anesthesiology and Perioperative Medicine, Oregon Health & Science University, Portland, Oregon, USA
| | - Jeffrey J Iliff
- Department of Anesthesiology and Perioperative Medicine, Oregon Health & Science University, Portland, Oregon, USA.
- Knight Cardiovascular Institute, Oregon Health & Science University, Portland, Oregon, USA.
- Veterans Integrated Service Network 20 Mental Illness Research, Education and Clinical Center, Puget Sound Health Care System, Mail Stop 116-MIRECC, 1660 South Columbian Way, Seattle, Washington, 98108, USA.
- Department of Psychiatry and Behavioral Sciences, University of Washington School of Medicine, Seattle, Washington, USA.
- Department of Neurology, University of Washington School of Medicine, Seattle, Washington, USA.
| |
Collapse
|
32
|
Abstract
PURPOSE OF REVIEW Excessive noise has direct adverse physiological and psychological effects, and may also have indirect negative health consequences by reducing sleep quality and quantity. This review presents a synthesis of the epidemiology of noise in the ICU, and the potential interventions designed to attenuate noise and protect patients. RECENT FINDINGS Noise increases cortisol release, oxygen consumption, and vasoconstriction. ICU noise levels are excessive throughout the 24-h cycle, irrespective of level of intervention or whether the patient is in a side room or open ward. Direct measurement suggests that noise is a substantial contributor to poor sleep quantity and quality in the ICU and is frequently recalled by survivors of critical illness as a negative experience of ICU admission. Noise abatement, environmental masking and pharmacological interventions may all reduce the impact of noise on patients. However, the sustainability of behavioural interventions remains uncertain and high-quality evidence demonstrating the benefit of any intervention on patient-centered outcomes is lacking. SUMMARY Noise levels in the ICU are consistently reported to reach levels likely to have both direct and indirect adverse health consequences for both patients and staff. Noise reduction, abating the transmission of noise and pharmacological modulation of the adverse neural effects of noise are all potentially beneficial strategies, although definitive evidence of improved patient-centered outcomes is lacking.
Collapse
|
33
|
Better Sleep Experience for the Critically Ill: A Comprehensive Strategy for Designing Hospital Soundscapes. MULTIMODAL TECHNOLOGIES AND INTERACTION 2019. [DOI: 10.3390/mti3020036] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023] Open
Abstract
In this paper, the sleep phenomenon is considered in relation to critical care soundscapes with the intention to inform hospital management, medical device producers and policy makers regarding the complexity of the issue and possible modes of design interventions. We propose a comprehensive strategy based on soundscape design approach that facilitates a systematic way of tackling the auditory quality of critical care settings in favor of better patient sleep experience. Future research directions are presented to tackle the knowledge deficits in designing for critical care soundscapes that cater for patient sleep. The need for scientifically-informed design interventions for improving patient sleep experience in critical care is highlighted. The value of the soundscape design approach for resolving other sound-induced problems in critical care and how the approach allows for patient-centred innovation that is beyond the immediate sound issue are further discussed.
Collapse
|
34
|
Individualized sleep promotion in acute care hospitals: Identifying factors that affect patient sleep. Appl Nurs Res 2019; 48:63-67. [PMID: 31266610 DOI: 10.1016/j.apnr.2019.05.006] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2018] [Revised: 03/25/2019] [Accepted: 05/07/2019] [Indexed: 11/21/2022]
Abstract
BACKGROUND/AIM One major challenge of inpatient sleep promotion is that there is no "one-size-fits-all" intervention as patients' sleep may be bothered by different factors. A tool evaluating factors that disturb patient sleep is greatly needed as a foundation for generating a personalized action plan to address the patient's specific need for sleep. Unfortunately such tools are currently unavailable in clinical practice. In this study we developed and psychometrically evaluated a brief assessment tool for sleep disruptors important for hospitalized patients, the Factors Affecting Inpatient Sleep (FAIS) scale. METHODS The FAIS items were developed by literature review and validated by content validity testing. A survey collected from 105 hospitalized patients was used to select the most significant sleep disruptors. Psychometric evaluation using survey data included item analysis, principal components analysis, and internal consistency reliability. RESULTS The final FAIS scale included 14 items in three subscales explaining 56.4% of the total variance: 1) emotional or physical impairment due to illness or hospitalization; 2) sleep disturbance due to discomfort or care plan schedule; 3) sleep interruption due to hospital environment or medical care. The Cronbach's alpha coefficient for the FAIS scale was 0.87, and the reliability of the subscales ranged from 0.72 to 0.81. CONCLUSION The FAIS is a brief tool assessing sleep disruptors important for patients, and is empirically grounded, judged to have content validity, and has demonstrated psychometric adequacy. The FAIS scale can be used to guide the development of an individualized patient-centered sleep promotion plan.
Collapse
|
35
|
Dres M, Younes M, Rittayamai N, Kendzerska T, Telias I, Grieco DL, Pham T, Junhasavasdikul D, Chau E, Mehta S, Wilcox ME, Leung R, Drouot X, Brochard L. Sleep and Pathological Wakefulness at the Time of Liberation from Mechanical Ventilation (SLEEWE). A Prospective Multicenter Physiological Study. Am J Respir Crit Care Med 2019; 199:1106-1115. [DOI: 10.1164/rccm.201811-2119oc] [Citation(s) in RCA: 34] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023] Open
Affiliation(s)
- Martin Dres
- Keenan Research Centre, Li Ka Shing Knowledge Institute, and
- Interdepartmental Division of Critical Care Medicine, University of Toronto, Toronto, Ontario, Canada
- Service de Pneumologie, Médecine Intensive—Réanimation, Département R3S AP-HP, Groupe Hospitalier Pitié–Salpétrière Charles Foix, Paris, France
| | - Magdy Younes
- YRT Ltd., Winnipeg, Manitoba, Canada
- Sleep Disorders Centre, Winnipeg, Manitoba, Canada
| | - Nuttapol Rittayamai
- Keenan Research Centre, Li Ka Shing Knowledge Institute, and
- Interdepartmental Division of Critical Care Medicine, University of Toronto, Toronto, Ontario, Canada
- Division of Respiratory Diseases and Tuberculosis, Department of Medicine, Faculty of Medicine, Siriraj Hospital, Mahidol University, Bangkok, Thailand
| | - Tetyana Kendzerska
- Division of Respirology, Ottawa Hospital Research Institute, Ottawa, Ontario, Canada
| | - Irene Telias
- Keenan Research Centre, Li Ka Shing Knowledge Institute, and
- Interdepartmental Division of Critical Care Medicine, University of Toronto, Toronto, Ontario, Canada
| | - Domenico Luca Grieco
- Keenan Research Centre, Li Ka Shing Knowledge Institute, and
- Interdepartmental Division of Critical Care Medicine, University of Toronto, Toronto, Ontario, Canada
| | - Tai Pham
- Keenan Research Centre, Li Ka Shing Knowledge Institute, and
- Interdepartmental Division of Critical Care Medicine, University of Toronto, Toronto, Ontario, Canada
| | - Detajin Junhasavasdikul
- Keenan Research Centre, Li Ka Shing Knowledge Institute, and
- Interdepartmental Division of Critical Care Medicine, University of Toronto, Toronto, Ontario, Canada
| | - Edmond Chau
- Interdepartmental Division of Critical Care Medicine, University of Toronto, Toronto, Ontario, Canada
| | - Sangeeta Mehta
- Interdepartmental Division of Critical Care Medicine, University of Toronto, Toronto, Ontario, Canada
- Intensive Care Unit, Mount Sinai Hospital, Toronto, Ontario, Canada
| | - M. Elizabeth Wilcox
- Interdepartmental Division of Critical Care Medicine, University of Toronto, Toronto, Ontario, Canada
- Critical Care, Department of Medicine, Toronto Western Hospital, Toronto, Ontario, Canada; and
| | - Richard Leung
- Division of Respirology, Ottawa Hospital Research Institute, Ottawa, Ontario, Canada
| | - Xavier Drouot
- Neurophysiologie Clinique et Explorations Fonctionnelles, CHU de Poitiers, Poitiers, France
| | - Laurent Brochard
- Keenan Research Centre, Li Ka Shing Knowledge Institute, and
- Interdepartmental Division of Critical Care Medicine, University of Toronto, Toronto, Ontario, Canada
| |
Collapse
|
36
|
Pagnucci N, Tolotti A, Cadorin L, Valcarenghi D, Forfori F. Promoting nighttime sleep in the intensive care unit: Alternative strategies in nursing. Intensive Crit Care Nurs 2019; 51:73-81. [DOI: 10.1016/j.iccn.2018.11.010] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2017] [Revised: 08/05/2018] [Accepted: 11/29/2018] [Indexed: 10/27/2022]
|
37
|
Crawford KJ, Barnes LA, Peters TM, Falk J, Gehlbach BK. Identifying determinants of noise in a medical intensive care unit. JOURNAL OF OCCUPATIONAL AND ENVIRONMENTAL HYGIENE 2018; 15:810-817. [PMID: 30193088 PMCID: PMC6372309 DOI: 10.1080/15459624.2018.1515491] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/14/2018] [Revised: 08/16/2018] [Accepted: 08/20/2018] [Indexed: 06/08/2023]
Abstract
Continuous and intermittent exposure to noise elevates stress, increases blood pressure, and disrupts sleep among patients in hospital intensive care units. The purpose of this study was to determine the effectiveness of a behavior-based intervention to reduce noise and to identify determinants of noise in a medical intensive care unit. Staff were trained for 6 weeks to reduce noise during their activities in an effort to keep noise levels below 55 dBA during the day and below 50 dBA at night. One-min noise levels were logged continuously in patient rooms 8 weeks before and after the intervention. Noise levels were compared by room position, occupancy status, and time of day. Noise levels from flagged days (>60 dBA for >10 hr) were correlated with activity logs. The intervention was ineffective, with noise frequently exceeding project goals during the day and night. Noise levels were higher in rooms with the oldest heating, ventilation, and air-conditioning system, even when patient rooms were unoccupied. Of the flagged days, the odds of noise over 60 dBA occurring was 5.3 dBA higher when high-flow respiratory support devices were in use compared to times with low-flow devices in use (OR = 5.3, 95% CI = 5.0-5.5). General sources, like the heating, ventilation, and air-conditioning system, contribute to high baseline noise and high-volume (>10 L/min) respiratory-support devices generate additional high noise (>60 dBA) in Intensive Care Unit patient rooms. This work suggests that engineering controls (e.g., ventilation changes or equipment shielding) may be more effective in reducing noise in hospital intensive care units than behavior modification alone.
Collapse
Affiliation(s)
- Kathryn J. Crawford
- Department of Occupational and Environmental Health, College of Public Health, University of Iowa
| | - Lindsey A. Barnes
- Division of Pulmonary, Critical Care, and Occupational Medicine, Department of Internal Medicine, Carver College of Medicine, University of Iowa
| | - Thomas M. Peters
- Department of Occupational and Environmental Health, College of Public Health, University of Iowa
| | - Jeffrey Falk
- Department of Occupational and Environmental Health, College of Public Health, University of Iowa
| | - Brian K. Gehlbach
- Division of Pulmonary, Critical Care, and Occupational Medicine, Department of Internal Medicine, Carver College of Medicine, University of Iowa
| |
Collapse
|
38
|
Effect of Intravenous Oxycodone in Combination With Different Doses of Dexmedetomdine on Sleep Quality and Visceral Pain in Patients After Abdominal Surgery. Clin J Pain 2018; 34:1126-1132. [DOI: 10.1097/ajp.0000000000000645] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
|
39
|
Simons KS, Verweij E, Lemmens PMC, Jelfs S, Park M, Spronk PE, Sonneveld JPC, Feijen HM, van der Steen MS, Kohlrausch AG, van den Boogaard M, de Jager CPC. Noise in the intensive care unit and its influence on sleep quality: a multicenter observational study in Dutch intensive care units. CRITICAL CARE : THE OFFICIAL JOURNAL OF THE CRITICAL CARE FORUM 2018; 22:250. [PMID: 30290829 PMCID: PMC6173893 DOI: 10.1186/s13054-018-2182-y] [Citation(s) in RCA: 53] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/26/2018] [Accepted: 09/10/2018] [Indexed: 11/10/2022]
Abstract
BACKGROUND High noise levels in the intensive care unit (ICU) are a well-known problem. Little is known about the effect of noise on sleep quality in ICU patients. The study aim is to determine the effect of noise on subjective sleep quality. METHODS This was a multicenter observational study in six Dutch ICUs. Noise recording equipment was installed in 2-4 rooms per ICU. Adult patients were eligible for the study 48 h after ICU admission and were followed up to maximum of five nights in the ICU. Exclusion criteria were presence of delirium and/or inability to be assessed for sleep quality. Sleep was evaluated using the Richards Campbell Sleep Questionnaire (range 0-100 mm). Noise recordings were used for analysis of various auditory parameters, including the number and duration of restorative periods. Hierarchical mixed model regression analysis was used to determine associations between noise and sleep. RESULTS In total, 64 patients (68% male), mean age 63.9 (± 11.7) years and mean Acute Physiology And Chronic Health Evaluation (APACHE) II score 21.1 (± 7.1) were included. Average sleep quality score was 56 ± 24 mm. The mean of the 24-h average sound pressure levels (LAeq, 24h) was 54.0 dBA (± 2.4). Mixed-effects regression analyses showed that background noise (β = - 0.51, p < 0.05) had a negative impact on sleep quality, whereas number of restorative periods (β = 0.53, p < 0.01) and female sex (β = 1.25, p < 0.01) were weakly but significantly correlated with sleep. CONCLUSIONS Noise levels are negatively associated and restorative periods and female gender are positively associated with subjective sleep quality in ICU patients. TRIAL REGISTRATION www.ClinicalTrials.gov, NCT01826799 . Registered on 9 April 2013.
Collapse
Affiliation(s)
- Koen S Simons
- Departement of Intensive Care, Jeroen Bosch Ziekenhuis, Henri Dunantstraat 1, 5223 GZ, 's-Hertogenbosch, The Netherlands. .,Departement of Intensive Care Research, Radboud University Medical Center, Nijmegen, The Netherlands.
| | - Eva Verweij
- Departement of Intensive Care, Jeroen Bosch Ziekenhuis, Henri Dunantstraat 1, 5223 GZ, 's-Hertogenbosch, The Netherlands
| | | | - Sam Jelfs
- Philips Research, Eindhoven, The Netherlands
| | - Munhum Park
- Institute of Music, Science and Engineering, King Mongkut's Institute of Technology Ladkrabang, Bangkok, Thailand
| | - Peter E Spronk
- Departement of Intensive Care, Gelre Ziekenhuizen, Apeldoorn, The Netherlands
| | | | - Hilde-Marieken Feijen
- Departement of Intensive Care, Onze Lieve Vrouwe Gasthuis, Amsterdam, The Netherlands
| | | | - Armin G Kohlrausch
- Human-Technology Interaction Group, Technische Universiteit Eindhoven, Eindhoven, The Netherlands
| | - Mark van den Boogaard
- Departement of Intensive Care Research, Radboud University Medical Center, Nijmegen, The Netherlands
| | - Cornelis P C de Jager
- Departement of Intensive Care, Jeroen Bosch Ziekenhuis, Henri Dunantstraat 1, 5223 GZ, 's-Hertogenbosch, The Netherlands
| |
Collapse
|
40
|
Altman MT, Pulaski C, Mburu F, Pisani MA, Knauert MP. Non-circadian signals in the intensive care unit: Point prevalence morning, noon and night. Heart Lung 2018; 47:610-615. [PMID: 30143362 DOI: 10.1016/j.hrtlng.2018.07.011] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2018] [Revised: 05/30/2018] [Accepted: 07/17/2018] [Indexed: 02/03/2023]
Abstract
BACKGROUND Intensive care unit (ICU) sleep disturbance is severe and potentially related to abnormal light and sound exposure. OBJECTIVES To assess the prevalence of measures of light and sound disturbance in ICU patient rooms, and whether these could be modified by a sleep-promotion intervention. METHODS This observational study with a before and after design for a quality improvement initiative surveyed environmental factors in ICU rooms at 01:00 08:00, and 12:00. Surveys assessed light usage, television usage, window shade position, and room door/curtain position. Factors were compared before and after an ICU sleep-promotion intervention. RESULTS 990 (pre-intervention) and 819 (post-intervention) occupied rooms were surveyed. Pre-intervention, the prevalence of night-time factors included: bright lights on (21%), television on (46%), and room door open (94%). Post-intervention, more rooms had all lights off at night (41% v 50%, p = 0.04), and fewer rooms had open door curtains (57% v 42%, p = 0.001) and window shades (78% v 62%, p = 0.002). CONCLUSIONS Disruptive environmental factors are common in the ICU. Some factors improve with sleep-promotion interventions.
Collapse
Affiliation(s)
- Marcus T Altman
- Yale University School of Medicine, 333 Cedar St, New Haven, CT 06510, United States
| | - Catherine Pulaski
- Section of Pulmonary, Critical Care & Sleep Medicine, Department of Internal Medicine, Yale University School of Medicine; P.O. Box 208057, New Haven, CT 06520-8057, United States
| | - Francis Mburu
- Section of Pulmonary, Critical Care & Sleep Medicine, Department of Internal Medicine, Yale University School of Medicine; P.O. Box 208057, New Haven, CT 06520-8057, United States
| | - Margaret A Pisani
- Section of Pulmonary, Critical Care & Sleep Medicine, Department of Internal Medicine, Yale University School of Medicine; P.O. Box 208057, New Haven, CT 06520-8057, United States
| | - Melissa P Knauert
- Section of Pulmonary, Critical Care & Sleep Medicine, Department of Internal Medicine, Yale University School of Medicine; P.O. Box 208057, New Haven, CT 06520-8057, United States.
| |
Collapse
|
41
|
Park C, Sim CS, Sung JH, Lee J, Ahn JH, Choe YM, Park J. Low Income as a Vulnerable Factor to the Effect of Noise on Insomnia. Psychiatry Investig 2018; 15:602-612. [PMID: 29865781 PMCID: PMC6018138 DOI: 10.30773/pi.2018.01.14] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/20/2017] [Accepted: 01/14/2018] [Indexed: 11/27/2022] Open
Abstract
OBJECTIVE The present study aimed to examine the potential mediating effect of income level on the association between noise exposure and insomnia. METHODS 706 individuals were evaluated in conjunction with 2014 noise map data from Seoul, South Korea. Cross-sectional analysis was performed to examine differences in noise level according to household income, while three separate logistic regression models were used to examine factors influencing insomnia. Odds ratios (ORs) were calculated after adjusting for depression, anxiety, auditory acuity and noise sensitivity in the first model. Analyses were adjusted for sociodemographic variables in the second model, lifestyle factors and medical illnesses in the third model. RESULTS Noise level was significantly associated with an increased risk of insomnia in the low-income group, although no such association was observed in the high-income group. Groups exposed to >60 dB of noise (Lden; day-evening-night equivalent) exhibited a 1.79-fold increase in the incidence of insomnia relative to those exposed to <50 dB. The result was significant after adjusting sociodemographic variables, although not significant when adjusted for lifestyle factors and medical illnesses. CONCLUSION Individuals with low income may be more vulnerable to the deleterious effects of noise exposure on health. Various aspects including income should be considered to ascertain the influence of noise on insomnia.
Collapse
Affiliation(s)
- Choongman Park
- Department of Psychiatry, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Republic of Korea
| | - Chang Sun Sim
- Department of Occupational & Environmental Medicine, Ulsan University Hospital, University of Ulsan College of Medicine, Ulsan, Republic of Korea
| | - Joo Hyun Sung
- Department of Occupational & Environmental Medicine, Gyeongsang National University Changwon Hospital, Gyeongsang National University School of Medicine, Changwon, Republic of Korea
| | - Jiho Lee
- Department of Occupational & Environmental Medicine, Ulsan University Hospital, University of Ulsan College of Medicine, Ulsan, Republic of Korea
| | - Joon Ho Ahn
- Department of Psychiatry, Ulsan University Hospital, University of Ulsan College of Medicine, Ulsan, Republic of Korea
| | - Young Min Choe
- Department of Neuropsychiatry, Hallym University Dongtan Sacred Heart Hospital, Hwaseong, Republic of Korea
| | - Jangho Park
- Department of Psychiatry, Ulsan University Hospital, University of Ulsan College of Medicine, Ulsan, Republic of Korea
| |
Collapse
|
42
|
Altman MT, Knauert MP, Murphy TE, Ahasic AM, Chauhan Z, Pisani MA. Association of intensive care unit delirium with sleep disturbance and functional disability after critical illness: an observational cohort study. Ann Intensive Care 2018; 8:63. [PMID: 29740704 PMCID: PMC5940933 DOI: 10.1186/s13613-018-0408-4] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2017] [Accepted: 05/02/2018] [Indexed: 12/14/2022] Open
Abstract
Background In medical intensive care unit (MICU) patients, the predictors of post-discharge sleep disturbance and functional disability are poorly understood. ICU delirium is a risk factor with a plausible link to sleep disturbance and disability. This study evaluated the prevalence of self-reported post-ICU sleep disturbance and increased functional disability, and their association with MICU delirium and other ICU factors. Methods This was an observational cohort study of MICU patients enrolled in a biorepository and assessed upon MICU admission by demographics, comorbidities, and baseline characteristics. Delirium was assessed daily using the Confusion Assessment Method for the ICU. Telephone follow-up interview instruments occurred after hospital discharge and included the Pittsburgh Sleep Quality Index (PSQI), and basic and instrumental activities of daily living (BADLs, IADLs) for disability. We define sleep disturbance as a PSQI score > 5 and increased disability as an increase in composite BADL/IADL score at follow-up relative to baseline. Multivariable regression modeled the associations of delirium and other MICU factors on follow-up PSQI scores and change in disability scores. Results PSQI and BADL/IADL instruments were completed by 112 and 122 participants, respectively, at mean 147 days after hospital discharge. Of those surveyed, 63% had sleep disturbance by PSQI criteria, and 37% had increased disability by BADL/IADL scores compared to their pre-MICU baseline. Total days of MICU delirium (p = 0.013), younger age (p = 0.013), and preexisting depression (p = 0.025) were significantly associated with higher PSQI scores at follow-up. Lower baseline disability (p < 0.001), older age (p = 0.048), and less time to follow-up (p = 0.024) were significantly associated with worsening post-ICU disability, while the occurrence of MICU delirium showed a trend toward association (p = 0.077). Conclusions After adjusting for important covariates, total days of MICU delirium were significantly associated with increased post-discharge sleep disturbance. Delirium incidence showed a trend toward association with increased functional disability in the year following discharge.
Collapse
Affiliation(s)
- Marcus T Altman
- Yale University School of Medicine, 300 Cedar Street, P.O. Box 208057, New Haven, CT, USA.
| | - Melissa P Knauert
- Section of Pulmonary, Critical Care and Sleep Medicine, Yale University School of Medicine, New Haven, CT, USA
| | - Terrence E Murphy
- Geriatrics, Yale University School of Medicine, New Haven, CT, USA.,Department of Biostatistics, Yale School of Public Health, New Haven, CT, USA
| | - Amy M Ahasic
- Section of Pulmonary and Critical Care Medicine, Norwalk Hospital, Norwalk, CT, USA
| | - Zeeshan Chauhan
- Department of Internal Medicine, John T. Mather Memorial Hospital, Port Jefferson, NY, USA
| | - Margaret A Pisani
- Section of Pulmonary, Critical Care and Sleep Medicine, Yale University School of Medicine, New Haven, CT, USA
| |
Collapse
|
43
|
Plummer NR, Herbert A, Blundell JE, Howarth R, Baldwin J, Laha S. SoundEar noise warning devices cause a sustained reduction in ambient noise in adult critical care. J Intensive Care Soc 2018; 20:106-110. [PMID: 31037102 DOI: 10.1177/1751143718767773] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Introduction Elevated sound levels in critical care are associated with sleep deprivation and an increased incidence of delirium. We aimed to determine whether a sound-activated visual noise display meter could cause a sustained reduction in sound levels overnight in an adult critical care unit. Method Sound levels were recorded overnight for eight days before and after the introduction of a visual noise display meter, with a further eight days recorded four months later after continued use of the visual noise display meter. Results Median ambient sound levels were significantly reduced from 57.4 dB by 3.9 dB, with a sustained reduction of 3.6 dB from baseline after four months of the device operating. Peak ambient sound levels had a small but significant reduction from 66.0 dB by 0.7 dB, with a sustained reduction of 0.8 dB after four months. Discussion Sound-activated visual noise display meters can be effective in providing a sustained reduction in ambient sound overnight in adult critical care units, which would appear to be driven by behavioural change.
Collapse
Affiliation(s)
| | | | | | - Rachel Howarth
- Critical Care Unit, Lancashire Teaching Hospitals NHS Foundation Trust, Preston, UK
| | - Jacqueline Baldwin
- Clinical Studies Unit, Lancashire Teaching Hospitals NHS Foundation Trust, Preston, UK
| | - Shondipon Laha
- Critical Care Unit, Lancashire Teaching Hospitals NHS Foundation Trust, Preston, UK
| |
Collapse
|
44
|
Szczygiel EJ, Cho S, Tucker RM. Characterization of the Relationships Between Sleep Duration, Quality, Architecture, and Chemosensory Function in Nonobese Females. Chem Senses 2018. [DOI: 10.1093/chemse/bjy012] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- Edward J Szczygiel
- Department of Food Science and Human Nutrition, Michigan State University, East Lansing, USA
| | - Sungeun Cho
- Department of Food Science and Human Nutrition, Michigan State University, East Lansing, USA
| | - Robin M Tucker
- Department of Food Science and Human Nutrition, Michigan State University, East Lansing, USA
| |
Collapse
|
45
|
Delaney LJ, Currie MJ, Huang HCC, Litton E, Wibrow B, Lopez V, Haren FV. Investigating the application of motion accelerometers as a sleep monitoring technique and the clinical burden of the intensive care environment on sleep quality: study protocol for a prospective observational study in Australia. BMJ Open 2018; 8:e019704. [PMID: 29358448 PMCID: PMC5781106 DOI: 10.1136/bmjopen-2017-019704] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
INTRODUCTION Sleep is a state of quiescence that facilitates the significant restorative processes that enhance individuals' physiological and psychological well-being. Patients admitted to the intensive care unit (ICU) experience substantial sleep disturbance. Despite the biological importance of sleep, sleep monitoring does not form part of standard clinical care for critically ill patients. There exists an unmet need to assess the feasibility and accuracy of a range of sleep assessment techniques that have the potential to allow widespread implementation of sleep monitoring in the ICU. KEY MEASURES The coprimary outcome measures of this study are to: determine the accuracy and feasibility of motion accelerometer monitoring (ie, actigraphy) and subjective assessments of sleep (nursing-based observations and patient self-reports) to the gold standard of sleep monitoring (ie, polysomnography) in evaluating sleep continuity and disturbance. The secondary outcome measures of the study will include: (1) the association between sleep disturbance and environmental factors (eg, noise, light and clinical interactions) and (2) to describe the sleep architecture of intensive care patients. METHODS AND ANALYSIS A prospective, single centre observational design with a within subjects' assessment of sleep monitoring techniques. The sample will comprise 80 adults (aged 18 years or more) inclusive of ventilated and non-ventilated patients, admitted to a tertiary ICU with a Richmond Agitation-Sedation Scale score between +2 (agitated) and -3 (moderate sedation) and an anticipated length of stay >24 hours. Patients' sleep quality, total sleep time and sleep fragmentations will be continuously monitored for 24 hours using polysomnography and actigraphy. Behavioural assessments (nursing observations) and patients' self-reports of sleep quality will be assessed during the 24-hour period using the Richards-Campbell Sleep Questionnaire, subjective sleepiness evaluated via the Karolinska Sleepiness Scale, along with a prehospital discharge survey regarding patients' perception of sleep quality and disturbing factors using the Little Sleep Questionnaire will be undertaken. Associations between sleep disturbance, noise and light levels, and the frequency of clinical interactions will also be investigated. Sound and luminance levels will be recorded at 1 s epochs via Extech SDL600 and SDL400 monitoring devices. Clinical interactions will be logged via the electronic patient record system Metavision which documents patient monitoring and clinical care. ETHICS AND DISSEMINATION The relevant institutions have approved the study protocol and consent procedures. The findings of the study will contribute to the understanding of sleep disturbance, and the ability to implement sleep monitoring methods within ICUs. Understanding the contribution of a clinical environment on sleep disturbance may provide insight into the need to address clinical environmental issues that may positively influence patient outcomes, and could dispel notions that the environment is a primary factor in sleep disturbance. The research findings will be disseminated via presentations at national and international conferences, proceedings and published articles in peer-reviewed journals. TRIAL REGISTRATION NUMBER ACTRN12615000945527; Pre-results.
Collapse
Affiliation(s)
- Lori J Delaney
- Faculty of Nursing, University of Canberra, Canberra, Australia
- College of Health and Medicine; Australian National University, Canberra, Australia
| | - Marian J Currie
- Faculty of Nursing, University of Canberra, Canberra, Australia
| | - Hsin-Chia Carol Huang
- College of Health and Medicine; Australian National University, Canberra, Australia
- Chronic Diseases Management and Respiratory and Sleep Medicine, Canberra Hospital, Canberra, Australia
| | - Edward Litton
- Intensive Care Unit, St John of God Subiaco Hospital, Perth, Australia
| | - Bradley Wibrow
- Intensive Care Medicine, Sir Charles Gairdner Hospital, Nedlands, Australia
| | - Violeta Lopez
- Alice Lee Centre for Nursing Studies, Yong Loo Lin School of Medicine, Singapore, Singapore
| | - Frank Van Haren
- Intensive Care Unit, Canberra Hospital, Canberra, Australia
- University of Canberra, Australian National University, Canberra, Australia
| |
Collapse
|
46
|
Naik RD, Gupta K, Soneja M, Elavarasi A, Sreenivas V, Sinha S. Sleep Quality and Quantity in Intensive Care Unit Patients: A Cross-sectional Study. Indian J Crit Care Med 2018; 22:408-414. [PMID: 29962740 PMCID: PMC6020640 DOI: 10.4103/ijccm.ijccm_65_18] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022] Open
Abstract
Introduction: Lack of restorative sleep and altered sleep-wake cycle is a frequent problem among patients admitted to the Intensive Care Unit (ICU). This study was conducted to estimate the prevalence of poor sleep and patient's perspective of factors governing poor sleep in the ICU. Materials and Methods: A cross-sectional study was performed in medical ICU of a tertiary care hospital. A total of 32 patients admitted to the ICU for at least 24 h were recruited. A 72-h actigraphy was done followed by a subjective assessment of sleep quality by the Richards-Campbell Sleep Questionnaire (RCSQ). Patient's perspective of sleep quality and quantity and possible risk factors for poor sleep were recorded. Results: Poor sleep (defined as RCSQ <50, sensitivity 88% and specificity 87%) was found in 15 out of the 32 patients (47%). The prevalence of poor sleep was higher among patients on mechanical ventilation (n = 15) (66.7% vs. 33.3%, P < 0.05). Patients with poor sleep had higher age (median age [in years] 42.8 vs. 31.4, P = 0.008), acute physiology, and chronic health evaluation II score (mean 14 ± 5.15 vs. 9.3 ± 5.64, P = 0.02), SAPS 3 score (62.7 ± 8.9 vs. 45.6 ± 10.5, P ≤ 0.0001), and worse actigraphy parameters. Only 55.63% of total sleep time was in the night (2200–0600). All patients had discomfort from indwelling catheters and suctioning of endotracheal tubes. All patients suggested that there be a minimum interruption in the sleep for interventions or medications. Conclusion: There is a high prevalence of poor sleep among patients admitted to the ICU. There is a dire need to minimize untimely interventions and design nonpharmacological techniques to allow patients to sleep comfortably.
Collapse
Affiliation(s)
- Ramavath Devendra Naik
- Department of Medical Oncology, All India Institute of Medical Sciences, New Delhi, India.,Department of Medicine, All India Institute of Medical Sciences, New Delhi, India
| | - Kartik Gupta
- Department of Medicine, All India Institute of Medical Sciences, New Delhi, India
| | - Manish Soneja
- Department of Medicine, All India Institute of Medical Sciences, New Delhi, India
| | - Arunmozhimaran Elavarasi
- Department of Medicine, All India Institute of Medical Sciences, New Delhi, India.,Department of Neurology, All India Institute of Medical Sciences, New Delhi, India
| | - V Sreenivas
- Department of Biostatistics, All India Institute of Medical Sciences, New Delhi, India
| | - Sanjeev Sinha
- Department of Medicine, All India Institute of Medical Sciences, New Delhi, India
| |
Collapse
|
47
|
Medical hypothesis: Light at night is a factor worth considering in critical care units. ADVANCES IN INTEGRATIVE MEDICINE 2017; 4:115-120. [PMID: 34094846 DOI: 10.1016/j.aimed.2017.12.001] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Exposure to light at night is not an innocuous consequence of modernization. There are compelling data linking long-term exposure to occupational and environmental light at night with serious health conditions, including heart disease, obesity, diabetes, and cancer. However, far less is known about the physiological and behavioral effects of acute exposure to light at night. Among healthy volunteers, acute night-time light exposure increases systolic blood pressure and inflammatory markers in the blood, and impairs glucose regulation. Whether critically ill patients in a hospital setting experience the same physiological shifts in response to evening light exposure is not known. This paper reviews the available data on light at night effects on health and wellbeing, and argues that the data are sufficiently compelling to warrant studies of how lighting in intensive care units may be influencing patient recovery.
Collapse
|
48
|
Abstract
Hospitalization is a period of acute sleep deprivation for older adults owing to environmental, medical, and patient factors. Although hospitalized patients are in need of adequate rest and recovery during acute illness, older patients face unique risks owing to acute sleep loss during hospitalization. Sleep loss in the hospital is associated with worse health outcomes, including cardiometabolic derangements and an increased risk of delirium. Because older patients are at risk of polypharmacy and medication side effects, a variety of nonpharmacologic interventions are recommended first to improve sleep loss for hospitalized older adults.
Collapse
Affiliation(s)
- Nancy H Stewart
- Creighton University Medical Center, 7500 Mercy Road, Omaha, NE 68124, USA
| | - Vineet M Arora
- Department of Medicine, University of Chicago, 5841 South Maryland Avenue, MC 2007 AMB W216, Chicago, IL 60637, USA.
| |
Collapse
|
49
|
Delaney LJ, Currie MJ, Huang HCC, Lopez V, Litton E, Van Haren F. The nocturnal acoustical intensity of the intensive care environment: an observational study. J Intensive Care 2017; 5:41. [PMID: 28702196 PMCID: PMC5504755 DOI: 10.1186/s40560-017-0237-9] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2017] [Accepted: 06/27/2017] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND The intensive care unit (ICU) environment exposes patients to noise levels that may result in substantial sleep disruption. There is a need to accurately describe the intensity pattern and source of noise in the ICU in order to develop effective sound abatement strategies. The objectives of this study were to determine nocturnal noise levels and their variability and the related sources of noise within an Australian tertiary ICU. METHODS An observational cross-sectional study was conducted in a 24-bed open-plan ICU. Sound levels were recorded overnight during three nights at 5-s epochs using Extech (SDL 600) sound monitors. Noise sources were concurrently logged by two research assistants. RESULTS The mean recorded ambient noise level in the ICU was 52.85 decibels (dB) (standard deviation (SD) 5.89), with a maximum noise recording at 98.3 dB (A). All recorded measurements exceeded the WHO recommendations. Noise variability per minute ranged from 9.9 to 44 dB (A), with peak noise levels >70 dB (A) occurring 10 times/hour (SD 11.4). Staff were identified as the most common source accounting for 35% of all noise. Mean noise levels in single-patient rooms compared with open-bed areas were 53.5 vs 53 dB (p = 0.37), respectively. CONCLUSION Mean noise levels exceeded those recommended by the WHO resulting in an acoustical intensity of 193 times greater than the recommended and demonstrated a high degree of unpredictable variability, with the primary noise sources coming from staff conversations. The lack of protective effects of single rooms and the contributing effects that staffs have on noise levels are important factors when considering sound abatement strategies.
Collapse
Affiliation(s)
- Lori J. Delaney
- Faculty of Nursing, University of Canberra, Canberra, Australia
- College of Medicine, Biology and Environment, Australian National University, Canberra, Australia
- Faculty of Health: Discipline of Nursing, University of Canberra, Canberra, Act 2601 Australia
| | - Marian J. Currie
- Faculty of Nursing, University of Canberra, Canberra, Australia
- College of Medicine, Biology and Environment, Australian National University, Canberra, Australia
| | | | - Violeta Lopez
- Alice Lee Centre for Nursing Studies, Yong Loo Lin School of Medicine, Singapore, Singapore
- St. John of God Hospital, Subiaco Perth Australia, Subiaco, Australia
| | - Edward Litton
- St. John of God Hospital, Subiaco Perth Australia, Subiaco, Australia
- School of Medicine and Pharmacology, University of Western Australia, Perth, 6009 Australia
| | - Frank Van Haren
- College of Medicine, Biology and Environment, Australian National University, Canberra, Australia
- Intensive Care Unit, Canberra Hospital, Canberra, Australia
| |
Collapse
|
50
|
Ding Q, Redeker NS, Pisani MA, Yaggi HK, Knauert MP. Factors Influencing Patients' Sleep in the Intensive Care Unit: Perceptions of Patients and Clinical Staff. Am J Crit Care 2017; 26:278-286. [PMID: 28668912 DOI: 10.4037/ajcc2017333] [Citation(s) in RCA: 57] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022]
Abstract
BACKGROUND Multiple factors are believed to contribute to disruption of patients' sleep and negatively affect clinical outcomes in the intensive care unit. Achieving restorative sleep for critically ill patients remains a challenge. OBJECTIVES To explore the perceptions and beliefs of staff, patients, and surrogates regarding the environmental and nonenvironmental factors in the medical intensive care unit that affect patients' sleep. METHODS This qualitative study included 24 medical intensive care unit staff (7 physicians, 5 respiratory therapists, 10 nurses, and 2 patient-care assistants), 8 patients, and 6 patient surrogates. Semistructured interviews were conducted, and qualitative analysis of content was used to code, categorize, and identify interview themes. RESULTS Interview responses revealed 4 themes with related subthemes: (1) The overnight medical intensive care unit environment does affect sleep, (2) nonenvironmental factors such as difficult emotions and anxiety also affect sleep, (3) respondents' perceptions about sleep quality in the medical intensive care unit were highly variable, and (4) suggestions for sleep improvement included reassuring patients and care-clustering strategies. CONCLUSIONS Results of this study suggest that environment is not the only factor influencing patients' sleep. Decreases in environmental sources of disturbance are necessary but not sufficient for sleep improvement. Guideline-recommended clustered care is needed to provide adequate sleep opportunity, but patients' emotions and anxiety also must be addressed.
Collapse
Affiliation(s)
- Qinglan Ding
- Qinglan Ding is a doctoral student at the Yale School of Nursing, West Haven, Connecticut. Nancy S. Redeker is a professor at the Yale School of Nursing. Margaret A. Pisani and Henry K. Yaggi are associate professors and Melissa P. Knauert is an assistant professor, Section of Pulmonary, Critical Care and Sleep Medicine, Department of Internal Medicine, Yale University School of Medicine, New Haven, Connecticut
| | - Nancy S. Redeker
- Qinglan Ding is a doctoral student at the Yale School of Nursing, West Haven, Connecticut. Nancy S. Redeker is a professor at the Yale School of Nursing. Margaret A. Pisani and Henry K. Yaggi are associate professors and Melissa P. Knauert is an assistant professor, Section of Pulmonary, Critical Care and Sleep Medicine, Department of Internal Medicine, Yale University School of Medicine, New Haven, Connecticut
| | - Margaret A. Pisani
- Qinglan Ding is a doctoral student at the Yale School of Nursing, West Haven, Connecticut. Nancy S. Redeker is a professor at the Yale School of Nursing. Margaret A. Pisani and Henry K. Yaggi are associate professors and Melissa P. Knauert is an assistant professor, Section of Pulmonary, Critical Care and Sleep Medicine, Department of Internal Medicine, Yale University School of Medicine, New Haven, Connecticut
| | - Henry K. Yaggi
- Qinglan Ding is a doctoral student at the Yale School of Nursing, West Haven, Connecticut. Nancy S. Redeker is a professor at the Yale School of Nursing. Margaret A. Pisani and Henry K. Yaggi are associate professors and Melissa P. Knauert is an assistant professor, Section of Pulmonary, Critical Care and Sleep Medicine, Department of Internal Medicine, Yale University School of Medicine, New Haven, Connecticut
| | - Melissa P. Knauert
- Qinglan Ding is a doctoral student at the Yale School of Nursing, West Haven, Connecticut. Nancy S. Redeker is a professor at the Yale School of Nursing. Margaret A. Pisani and Henry K. Yaggi are associate professors and Melissa P. Knauert is an assistant professor, Section of Pulmonary, Critical Care and Sleep Medicine, Department of Internal Medicine, Yale University School of Medicine, New Haven, Connecticut
| |
Collapse
|