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Fedele B, Williams G, McKenzie D, Giles R, McKay A, Olver J. Sleep Disturbance During Post-Traumatic Amnesia and Early Recovery After Traumatic Brain Injury. J Neurotrauma 2024. [PMID: 38553904 DOI: 10.1089/neu.2023.0656] [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: 05/07/2024] Open
Abstract
After moderate to severe traumatic brain injury (TBI), sleep disturbance commonly emerges during the confused post-traumatic amnesia (PTA) recovery stage. However, the evaluation of early sleep disturbance during PTA, its recovery trajectory, and influencing factors is limited. This study aimed to evaluate sleep outcomes in patients experiencing PTA using ambulatory gold-standard polysomnography (PSG) overnight and salivary endogenous melatonin (a hormone that influences the sleep-wake cycle) assessment at two time-points. The relationships between PSG-derived sleep-wake parameters and PTA symptoms (i.e., agitation and cognitive disturbance) were also evaluated. In a patient subset, PSG was repeated after PTA had resolved to assess the trajectory of sleep disturbance. Participants with PTA were recruited from Epworth HealthCare's inpatient TBI Rehabilitation Unit. Trained nurses administered overnight PSG at the patient bedside using the Compumedics Somté portable PSG device (Compumedics, Ltd., Australia). Two weeks after PTA had resolved, PSG was repeated. On a separate evening, two saliva specimens were collected (at 24:00 and 06:00) for melatonin testing. Results of routine daily hospital measures (i.e., Agitated Behavior Scale and Westmead PTA Scale) were also collected. Twenty-nine patients were monitored with PSG (mean: 41.6 days post-TBI; standard deviation [SD]: 28.3). Patients' mean sleep duration was reduced (5.6 h, SD: 1.2), and was fragmented with frequent awakenings (mean: 27.7, SD: 15.0). Deep, slow-wave restorative sleep was reduced, or completely absent (37.9% of patients). The use of PSG did not appear to exacerbate patient agitation or cognitive disturbance. Mean melatonin levels at both time-points were commonly outside of normal reference ranges. After PTA resolved, patients (n = 11) displayed significantly longer mean sleep time (5.3 h [PTA]; 6.5 h [out of PTA], difference between means: 1.2, p = 0.005). However, disturbances to other sleep-wake parameters (e.g., increased awakenings, wake time, and sleep latency) persisted after PTA resolved. This is the first study to evaluate sleep disturbance in a cohort of patients as they progressed through the early TBI recovery phases. There is a clear need for tailored assessment of sleep disturbance during PTA, which currently does not form part of routine hospital assessment, to suggest new treatment paradigms, enhance patient recovery, and reduce its long-term impacts.
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Affiliation(s)
- Bianca Fedele
- Department of Rehabilitation, Department of Rehabilitation and Mental Health, Epworth HealthCare, Melbourne, Australia
- Department of Rehabilitation, Epworth Monash Rehabilitation Medicine (EMReM) Unit, Melbourne, Australia
- School of Clinical Sciences, Monash University, Melbourne, Australia
| | - Gavin Williams
- Department of Rehabilitation, Department of Rehabilitation and Mental Health, Epworth HealthCare, Melbourne, Australia
- Department of Rehabilitation, Epworth Monash Rehabilitation Medicine (EMReM) Unit, Melbourne, Australia
- Department of Physiotherapy, The University of Melbourne, Melbourne, Australia
| | - Dean McKenzie
- Research Development and Governance Unit, Department of Rehabilitation and Mental Health, Epworth HealthCare, Melbourne, Australia
- Department of Epidemiology and Preventive Medicine, Monash University, Melbourne, Australia
| | - Robert Giles
- Sleep Unit, Department of Rehabilitation and Mental Health, Epworth HealthCare, Melbourne, Australia
| | - Adam McKay
- Department of Rehabilitation, Department of Rehabilitation and Mental Health, Epworth HealthCare, Melbourne, Australia
- School of Psychological Sciences, Monash University, Melbourne, Australia
- Monash Epworth Rehabilitation Research Centre, Melbourne, Australia
| | - John Olver
- Department of Rehabilitation, Department of Rehabilitation and Mental Health, Epworth HealthCare, Melbourne, Australia
- Department of Rehabilitation, Epworth Monash Rehabilitation Medicine (EMReM) Unit, Melbourne, Australia
- School of Clinical Sciences, Monash University, Melbourne, Australia
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Yan G, Wei Y, Wang D, Wang D, Ren H, Hou B. Characteristics and neural mechanisms of sleep-wake disturbances after traumatic brain injury. J Neurotrauma 2024. [PMID: 38497747 DOI: 10.1089/neu.2023.0647] [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: 03/19/2024] Open
Abstract
Sleep-wake disturbances (SWDs) is one of the most common complaints following traumatic brain injury (TBI). The high prevalence and socioeconomic burden of sleep-wake disturbances (SWDs) post-TBI have only been recognized in the past decade. Common SWDs induced by TBI include excessive daytime sleepiness (EDS), hypersomnia, insomnia, obstructive sleep apnea (OSA), and circadian rhythm sleep disorders. Sleep disturbances can significantly compromise quality of life, strain interpersonal relationships, diminish work productivity, exacerbate other clinical conditions, and impede the rehabilitation process of TBI patients. Consequently, the prompt regulation and enhancement of sleep homeostasis in TBI patients is of paramount importance. Although studies have shown that abnormal neural network function, neuroendocrine changes, disturbance of sleep-wake regulators, and immune inflammatory responses related to brain structural damage induced by TBI are involved in the development of SWDs, the exact neuropathological mechanisms are still poorly understood. Thus, we systematically review the current clinical and experimental studies on the characteristics and possible neural mechanisms of post-TBI SWDs. Elucidating the neural underpinnings of post- TBI SWDs holds the potential to diversify and enhance therapeutic approaches for these conditions. Such advancements could hasten the recuperation of TBI patients and ameliorate their overall quality of life. It is our aspiration that departments specializing in neurosurgery, rehabilitation, and neuropsychiatry will be able to recognize and address these conditions promptly, thereby facilitating the healing journey of affected individuals.
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Affiliation(s)
- Guizhong Yan
- Lanzhou University Second Hospital, 74713, Department of Neurosurgery, Lanzhou, China
- Key Lab of Neurology of Gansu Province, Lanzhou, China;
| | - Yuan Wei
- Lanzhou University Second Hospital, 74713, Department of Neurosurgery, Lanzhou, Gansu, China
- Key Lab of Neurology of Gansu Province, Lanzhou, China;
| | - Dengfeng Wang
- Lanzhou University Second Hospital, 74713, Department of Neurosurgery, Lanzhou, Gansu, China
- Key Lab of Neurology of Gansu Province, Lanzhou, China;
| | - Dong Wang
- Lanzhou University Second Hospital, 74713, Department of Neurosurgery, Lanzhou, Gansu, China
- Key Lab of Neurology of Gansu Province, Lanzhou, China;
| | - Haijun Ren
- Lanzhou University Second Hospital, 74713, Department of Neurosurgery, Lanzhou, Gansu, China
- Key Lab of Neurology of Gansu Province, Lanzhou, China;
| | - Boru Hou
- Lanzhou University Second Hospital, 74713, Department of Neurosurgery, Lanzhou, Gansu, China
- Key Lab of Neurology of Gansu Province, Lanzhou, China;
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Wu H, Jiang B, Yan X, Zhan C, Dai W, Yu G. Effect of Decompressive Craniectomy with Stepwise Decompression of the Intracranial Compartment on Postoperative Neurologic Function, Hemodynamics, and Glasgow Outcome Scale Score of Patients with Severe Traumatic Brain Injury. J Neurol Surg A Cent Eur Neurosurg 2023; 84:536-541. [PMID: 36572035 DOI: 10.1055/s-0042-1757933] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
BACKGROUND We assess the effects of standard decompressive craniectomy with stepwise decompression of the intracranial compartment on the postoperative neurologic function, hemodynamics, and Glasgow Outcome Scale (GOS) score of patients with severe traumatic brain injury (sTBI). METHODS One hundred sTBI patients admitted from July 2017 to February 2019 were enrolled and randomly divided into step and standard groups (n = 50) using a random number table. The standard group received traditional standard decompression during surgery, while the step group underwent multistep decompression during surgery. Heart rate (HR), systolic blood pressure (SBP), diastolic blood pressure (DBP), and mean arterial pressure (MAP) were measured immediately after surgery (T0), 3 hours after surgery (T1), 6 hours after surgery (T2), and 12 hours after surgery (T3). The postoperative Glasgow Coma Scale (GCS) score, neurologic function deficit score, and GOS score were evaluated. RESULTS After treatment, the excellent/good rate of neurologic function improvement and GCS and GOS scores of the step group significantly exceeded those of the standard group (p < 0.05). Compared with the standard group, the HR, SBP, DBP, and MAP decreased significantly in the step group at T1, T2, and T3 (p < 0.05). CONCLUSION Standard decompressive craniectomy under multistep decompression can markedly improve the neurologic function, hemodynamics, and prognosis of patients.
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Affiliation(s)
- Huayong Wu
- Department of Neurosurgery, The Quzhou Affiliated Hospital of Wenzhou Medical University, Quzhou People's Hospital, Quzhou, Zhejiang Province, People's Republic of China
| | - Bingjie Jiang
- Department of Neurosurgery, The Quzhou Affiliated Hospital of Wenzhou Medical University, Quzhou People's Hospital, Quzhou, Zhejiang Province, People's Republic of China
| | - Xinjiang Yan
- Department of Neurosurgery, The Quzhou Affiliated Hospital of Wenzhou Medical University, Quzhou People's Hospital, Quzhou, Zhejiang Province, People's Republic of China
| | - Chengpeng Zhan
- Department of Neurosurgery, The Quzhou Affiliated Hospital of Wenzhou Medical University, Quzhou People's Hospital, Quzhou, Zhejiang Province, People's Republic of China
| | - Weimin Dai
- Department of Neurosurgery, The Quzhou Affiliated Hospital of Wenzhou Medical University, Quzhou People's Hospital, Quzhou, Zhejiang Province, People's Republic of China
| | - Guofeng Yu
- Department of Neurosurgery, The Quzhou Affiliated Hospital of Wenzhou Medical University, Quzhou People's Hospital, Quzhou, Zhejiang Province, People's Republic of China
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Leclerc C, Gervais C, Hjeij D, Briand MM, Williamson D, Bernard F, Duclos C, Arbour C. Sleep Disruptions in Hospitalized Adults Sustaining a Traumatic Brain Injury: A Scoping Review. J Head Trauma Rehabil 2023:00001199-990000000-00108. [PMID: 37767918 DOI: 10.1097/htr.0000000000000899] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/29/2023]
Abstract
OBJECTIVE Adults sustaining a traumatic brain injury (TBI) are at risk of sleep disturbances during their recovery, including when such an injury requires hospitalization. However, the sleep-wake profile, and internal and external factors that may interfere with sleep initiation/maintenance in hospitalized TBI patients are poorly understood. This review aimed to: (1) identify/summarize the existing evidence regarding sleep and sleep measurements in TBI adults receiving around-the-clock care in a hospital or during inpatient rehabilitation, and (2) identify internal/external factors linked to poor sleep in this context. METHODS A scoping review was conducted in accordance with the PRISMA Scoping Review Extension guidelines. A search was conducted in MEDLINE, PsycINFO, CINAHL, and Web of Science databases. RESULTS Thirty relevant studies were identified. The most common sleep variables that were put forth in the studies to characterize sleep during hospitalization were nighttime sleep time (mean = 6.5 hours; range: 5.2-8.9 hours), wake after sleep onset (87.1 minutes; range: 30.4-180 minutes), and sleep efficiency (mean = 72.9%; range: 33%-96%) using mainly actigraphy, polysomnography, and questionnaires (eg, the sleep-wake disturbance item of the Delirium Rating Scale or the Pittsburgh Sleep Quality Index). Twenty-four studies (80%) suggested that hospitalized TBI patients do not get sufficient nighttime sleep, based on the general recommendations for adults (7-9 hours per night). Sleep disruptions during hospitalization were found to be associated to several internal factors including TBI severity, cognitive status, and analgesia intake. External and modifiable factors, such as noise, light, and patient care, were consistently associated with sleep disruptions in this context. CONCLUSION Although the literature on sleep disturbances in hospitalized TBI patients has been increasing in recent years, many gaps in knowledge remain, including phenotypes and risk factors. Identifying these factors could help clinicians better understand the multiple sources of TBI patients' sleep difficulties and intervene accordingly.
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Affiliation(s)
- Catherine Leclerc
- Center for Advanced Research in Sleep Medicine, Hôpital du Sacré-Cœur de Montréal, CIUSSS du Nord-de-l'Île-de-Montréal, Montréal, Québec, Canada (Mss Leclerc and Hjeij, Mr Gervais, and Drs Williamson, Bernard, Duclos, and Arbour); Department of Psychology, Université de Montréal, Montréal, Québec, Canada (Ms Leclerc and Mr Gervais); Faculty of Medicine (Drs Briand and Bernard), Faculty of Pharmacy (Dr Williamson), and Faculty of Nursing (Dr Arbour), Université de Montréal, Montréal, Québec, Canada; Division of Trauma Research, Departments of Surgery and of Neurological Sciences, Hôpital du Sacré-Coeur de Montréal, CIUSSS du Nord-de-l'Île-de-Montréal, Montréal, Québec, Canada (Drs Briand, Bernard, Duclos, and Arbour); and Department of Anesthesiology and Pain Medicine, Faculty of Medicine, Université de Montréal, Montréal, Québec, Canada (Dr Duclos)
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Fedele B, Olver J. Sleep assessment during early amnesic brain injury recovery. J Clin Sleep Med 2023; 19:203-204. [PMID: 36239050 PMCID: PMC9806778 DOI: 10.5664/jcsm.10326] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2022] [Accepted: 09/30/2022] [Indexed: 11/06/2022]
Affiliation(s)
- Bianca Fedele
- Department of Rehabilitation, Epworth HealthCare, Melbourne, Australia
- Department of Rehabilitation, Epworth Monash Rehabilitation Medicine (EMReM) Unit, Melbourne, Australia
- School of Clinical Sciences, Monash University, Melbourne, Australia
| | - John Olver
- Department of Rehabilitation, Epworth HealthCare, Melbourne, Australia
- Department of Rehabilitation, Epworth Monash Rehabilitation Medicine (EMReM) Unit, Melbourne, Australia
- School of Clinical Sciences, Monash University, Melbourne, Australia
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Fedele B, McKenzie D, Williams G, Giles R, Olver J. A comparison of agreement between actigraphy and polysomnography for assessing sleep during posttraumatic amnesia. J Clin Sleep Med 2022; 18:2605-2616. [PMID: 35912692 PMCID: PMC9622995 DOI: 10.5664/jcsm.10174] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2022] [Revised: 06/26/2022] [Accepted: 06/28/2022] [Indexed: 11/13/2022]
Abstract
STUDY OBJECTIVES Sleep disturbance often emerges in the early recovery phase following a moderate to severe traumatic brain injury, known as posttraumatic amnesia. Actigraphy is commonly employed to assess sleep, as it is assumed that patients in posttraumatic amnesia (who display confusion, restlessness, and agitation) would better tolerate this measure over gold-standard polysomnography (PSG). This study evaluated the agreement between PSG and actigraphy for determining (sleep/wake time, sleep efficiency, sleep latency, and awakenings) in patients experiencing posttraumatic amnesia. It also compared the epoch-by-epoch sensitivity, specificity, and accuracy between the Actigraph device's 4 wake threshold settings (low, medium, high, and automatic) to PSG. METHODS The sample consisted of 24 inpatients recruited from a traumatic brain injury inpatient rehabilitation unit. Ambulatory PSG was recorded overnight at bedside and a Philips Actiwatch was secured to each patient's wrist for the same period. RESULTS There were poor correlations between PSG and actigraphy for all parameters (Lin's concordance correlation coefficient = < 0.80). The low threshold displayed the highest correlation with PSG for wake and sleep time, albeit still low. Actigraphy displayed low specificity (ranging from 17.1% to 36.6%). There appears to be a greater disparity between actigraphy and PSG for patients with increased wake time. CONCLUSIONS Actigraphy, while convenient, demonstrated poorer performance in determining sleep-wake parameters in patients with significantly disturbed sleep. Ambulatory PSG can provide a clearer understanding of the extent of sleep disturbances in these patients with reduced mobility during early rehabilitation. Study findings can help design future protocols of sleep assessment during posttraumatic amnesia and optimize treatment. CITATION Fedele B, McKenzie D, Williams G, Giles R, Olver J. A comparison of agreement between actigraphy and polysomnography for assessing sleep during posttraumatic amnesia. J Clin Sleep Med. 2022;18(11):2605-2616.
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Affiliation(s)
- Bianca Fedele
- Department of Rehabilitation, Epworth HealthCare, Melbourne, Australia
- Department of Rehabilitation, Epworth Monash Rehabilitation Medicine (EMReM) Unit, Melbourne, Australia
- School of Clinical Sciences, Monash University, Melbourne, Australia
| | - Dean McKenzie
- Research Development and Governance Unit, Epworth HealthCare, Melbourne, Australia
- Department of Epidemiology and Preventive Medicine, Monash University, Melbourne, Australia
| | - Gavin Williams
- Department of Rehabilitation, Epworth HealthCare, Melbourne, Australia
- Department of Rehabilitation, Epworth Monash Rehabilitation Medicine (EMReM) Unit, Melbourne, Australia
- Department of Physiotherapy, The University of Melbourne, Melbourne, Australia
| | - Robert Giles
- Sleep Unit, Department of Rehabilitation and Mental Health, Epworth HealthCare, Melbourne, Australia
| | - John Olver
- Department of Rehabilitation, Epworth HealthCare, Melbourne, Australia
- Department of Rehabilitation, Epworth Monash Rehabilitation Medicine (EMReM) Unit, Melbourne, Australia
- School of Clinical Sciences, Monash University, Melbourne, Australia
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Lequerica AH, Shoval HA, Yalamanchi K, Lengenfelder J, Marchetta C, Ace J, DeLuca J. Examining the Use of a Rest-Activity Ratio in a Pediatric Rehabilitation Setting. Arch Phys Med Rehabil 2022; 103:1766-1770. [PMID: 35093333 DOI: 10.1016/j.apmr.2021.12.027] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2021] [Revised: 12/22/2021] [Accepted: 12/26/2021] [Indexed: 11/02/2022]
Abstract
OBJECTIVE To examine the relationship between an estimate of sleep/wake regulation derived from actigraphy would be sensitive to neurocognitive dysfunction associated with acquired brain injury (ABI) in a pediatric rehabilitation sample. DESIGN cross-sectional design SETTING: Inpatient pediatric rehabilitation facility PARTICIPANTS: A sample of 31 males (72.1%) and 12 females (27.9%) admitted to a pediatric rehabilitation hospital wore an actigraph (wrist accelerometer) for one week. Ages ranged from 8 to 17 years (M=13.1, SD=2.7). INTERVENTIONS not applicable MAIN OUTCOME MEASURE(S): Raw actigraphy activity counts in 1-minute epochs were used to derive a rest-activity ratio over each 24-hour period and a 5-day average value was calculated covering Monday through Friday. Brain injury status was derived through medical record review and three groups were formed: traumatic brain injury (n=14), non-traumatic brain injury (n=16), and a non-ABI control group (n=13). Functional status was measured using WeeFIM Cognitive and Motor scores extracted from the medical records. RESULTS Unadjusted models showed a significant main group effect for brain injury status (p=0.012). Compared with controls, the rest-activity ratio was significantly lower in both the traumatic brain injury (p = 0.005), and non-traumatic brain injury (p = 0.023) groups. However, the main group effect was no longer significant in an adjusted model controlling for WeeFIM Cognitive and WeeFIM Motor scores at admission. In the context of the adjusted model, there was a significant relationship between the rest-activity ratio and WeeFIM Cognitive scores at admission. CONCLUSIONS Individuals with lower functional status at admission, especially in the cognitive domain, had lower rest-activity ratios, suggesting poorer sleep/wake regulation. Similar to findings in adults with acquired brain injury, this ratio may have utility in tracking sleep/wake regulation in the pediatric rehabilitation setting. Future studies should investigate sensitivity to change over the course of recovery and responsiveness to clinical interventions to improve sleep.
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Affiliation(s)
- Anthony H Lequerica
- Center for Traumatic Brain Injury Research, Kessler Foundation, East Hanover, NJ, USA; Department of Physical Medicine and Rehabilitation, Rutgers - New Jersey Medical School, Newark, NJ, USA.
| | - Hannah Aura Shoval
- Physiatry Section (Medical), Children's Specialized Hospital, Mountainside, NJ, USA
| | - Krishan Yalamanchi
- Inpatient Rehabilitation Unit, Children's Specialized Hospital, New Brunswick, NJ, USA
| | - Jean Lengenfelder
- Center for Traumatic Brain Injury Research, Kessler Foundation, East Hanover, NJ, USA; Department of Physical Medicine and Rehabilitation, Rutgers - New Jersey Medical School, Newark, NJ, USA
| | - Claire Marchetta
- Children's Specialized Hospital Research Center, New Brunswick, NJ, USA
| | - Jessica Ace
- JFK-Johnson Rehabilitation Institute, Edison, NJ, USA
| | - John DeLuca
- Center for Traumatic Brain Injury Research, Kessler Foundation, East Hanover, NJ, USA; Department of Physical Medicine and Rehabilitation, Rutgers - New Jersey Medical School, Newark, NJ, USA
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Fedele B, McKenzie D, Williams G, Giles R, Olver J. Assessing Sleep Architecture With Polysomnography During Posttraumatic Amnesia After Traumatic Brain Injury: A Pilot Study. Neurorehabil Neural Repair 2021; 35:622-633. [PMID: 33978535 DOI: 10.1177/15459683211011241] [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: 11/17/2022]
Abstract
BACKGROUND Early-onset sleep disturbance is common following moderate to severe traumatic brain injury (TBI) and often emerges while patients are in posttraumatic amnesia (PTA). However, sleep disruptions during this subacute recovery phase are not well-defined, and research often utilizes indirect measures (actigraphy) that quantify sleep based on activity. This study aims to examine sleep macro-architecture and sleep quality directly with ambulatory polysomnography (PSG) and measure endogenous salivary melatonin levels for patients experiencing PTA following moderate to severe TBI. METHOD Participants were recruited from an inpatient TBI rehabilitation unit. Nighttime PSG was administered at the patient's bedside. Two saliva specimens were collected for melatonin testing on a separate evening (24:00 and 06:00 hours) using melatonin hormone profile test kits. RESULTS Of 27 patients in whom PSG was recorded, the minimum required monitoring time occurred in n =17 (adherence: 63%) at a median of 37.0 days (quartile 1 [Q1] to quartile 3 [Q3]: 21.5-50.5) postinjury. Median non-rapid eye movement (NREM) and REM sleep proportions were similar to normal estimates. Slow-wave sleep was reduced and absent in 35.3% of patients. Sleep periods appeared fragmented, and median sleep efficiency was reduced (63.4%; Q1-Q3: 55.1-69.2). Median melatonin levels at both timepoints were outside the normal range of values specified for this test (from Australian Clinical Labs). CONCLUSION This study reports that ambulatory PSG and salivary melatonin assessment are feasible for patients experiencing PTA and offers new insight into the extent of sleep disturbance. Further research is necessary to understand associations between PTA and sleep disturbance.
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Affiliation(s)
- Bianca Fedele
- Epworth HealthCare, Melbourne, Victoria, Australia.,Epworth Monash Rehabilitation Medicine (EMReM) Unit, Melbourne, Victoria, Australia.,Monash University, Melbourne, Victoria, Australia
| | - Dean McKenzie
- Epworth HealthCare, Melbourne, Victoria, Australia.,Monash University, Melbourne, Victoria, Australia
| | - Gavin Williams
- Epworth HealthCare, Melbourne, Victoria, Australia.,Epworth Monash Rehabilitation Medicine (EMReM) Unit, Melbourne, Victoria, Australia.,The University of Melbourne, Melbourne, Victoria, Australia
| | - Robert Giles
- Epworth HealthCare, Melbourne, Victoria, Australia
| | - John Olver
- Epworth HealthCare, Melbourne, Victoria, Australia.,Epworth Monash Rehabilitation Medicine (EMReM) Unit, Melbourne, Victoria, Australia.,Monash University, Melbourne, Victoria, Australia
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