Value of Biomarkers of Brain Injury for Predicting Psycho-cognitive Sequelae Secondary to Sepsis: a Prospective Multicenter Study (SEPSYM)
調査の概要
詳細な説明
Sepsis is a major cause of admission to intensive care units and is responsible for approximately 11 million deaths worldwide each year. It may be complicated by an acute brain dysfunction known as sepsis-associated encephalopathy (SAE), which affects about 50% of patients and typically manifests as delirium or coma. The diagnosis of SAE is primarily clinical, with EEG and brain MRI providing supportive information. Risk factors for SAE are mainly related to patient characteristics, including advanced age, chronic kidney disease, and pre-existing neurodegenerative or cognitive disorders. The pathophysiology of SAE involves three major mechanisms: neuroinflammation, endothelial dysfunction with blood-brain barrier disruption, and mitochondrial dysfunction leading to neuronal injury. These mechanisms likely explain both acute neurological symptoms and long-term psycho-cognitive sequelae. Following sepsis, 30-60% of patients develop psychiatric disorders and cognitive impairments comparable to those observed after moderate traumatic brain injury or early Alzheimer's disease. These sequelae are part of post-intensive care syndrome (PICS), supporting the need for structured post-ICU follow-up. However, the optimal target population and organization of such follow-up remain unclear, as some studies have reported reduced quality of life in patients receiving long-term follow-up. Identifying early biomarkers predictive of psycho-cognitive outcomes is therefore crucial, as current data on neuronal and glial biomarkers remain limited. Such biomarkers could improve prognostication, guide cognitive rehabilitation and psychological support, and contribute to the development of future neuroprotective strategies.
Primary objective:
To evaluate the value of biomarkers of brain injury for predicting cognitive impairment (memory impairment assessed by a MoCA score < 26/30) at 3 months.
Secondary objectives:
- To evaluate the value of brain injury biomarkers for predicting delirium in the ICU, including hypoactive, hyperactive, and mixed phenotypes
- To assess the association between brain injury biomarkers and the duration of delirium in the ICU
- To evaluate the value of brain injury biomarkers for predicting psychological sequelae (anxiety, post-traumatic stress disorder, and depression) at 3 months
- To evaluate the value of brain injury biomarkers for predicting functional neurological outcomes using the Glasgow Outcome Scale-Extended at ICU discharge and at 3 months
- To assess the association between brain injury biomarkers and Post-Intensive Care Syndrome (PICS)
- To assess the association between brain injury biomarkers and EEG abnormalities in the ICU
- To assess the association between brain injury biomarkers and MRI abnormalities at 3 months
研究の種類
入学 (推定)
段階
- 適用できない
連絡先と場所
研究連絡先
- 名前:Adèle BELLINO
- 電話番号:+33 01 71 76 07 57
- メール:adele.bellino@aphp.fr
研究連絡先のバックアップ
- 名前:Sarah BENGHANEM, Dr
- 電話番号:+33 01 58 41 25 25
- メール:sarah.benghanem@aphp.fr
研究場所
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-
Île-de-France Region
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Paris、Île-de-France Region、フランス、75014
- Hôpital Cochin - APHP Centre
-
コンタクト:
- Sarah BENGHANEM, Dr
- 電話番号:+33 01 58 41 25 25
- メール:sarah.benghanem@aphp.fr
-
-
参加基準
適格基準
就学可能な年齢
- 大人
- 高齢者
健康ボランティアの受け入れ
説明
Inclusion Criteria:
- Adults aged 18-80 years.
- Admission to a medical or mixed ICU.
- Sepsis or septic shock according to Sepsis-3 criteria.
- ICU admission for less than 24 hours.
- Need for invasive or non-invasive mechanical ventilation and/or vasopressor support.
- Informed consent obtained from the patient or legal representative.
Exclusion Criteria:
- Moribund patients.
- Age >80 years.
- Patients under legal guardianship.
- History of schizophrenia or bipolar disorder.
- Pregnancy.
- No health insurance coverage.
- Previous inclusion in the study.
- Refusal to participate.
研究計画
研究はどのように設計されていますか?
デザインの詳細
- 主な目的:診断
- 割り当て:なし
- 介入モデル:単一グループの割り当て
- マスキング:なし(オープンラベル)
この研究は何を測定していますか?
主要な結果の測定
結果測定 |
メジャーの説明 |
時間枠 |
|---|---|---|
|
Cognitive function impairment assessed by the Montreal Cognitive Assessment (MoCA) score at 3 months
時間枠:3 months
|
Montreal Cognitive Assessment (MoCA) ranges from 0 to 30 points, with higher scores indicating better cognitive performance.
Cognitive impairment will be defined as a MoCA score <26/30.
|
3 months
|
二次結果の測定
結果測定 |
メジャーの説明 |
時間枠 |
|---|---|---|
|
Coma- and/or delirium-free days
時間枠:Day 10 after inclusion
|
Day 10 after inclusion
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|
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Duration of delirium in the intensive care unit (ICU)
時間枠:3 months
|
3 months
|
|
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Type of ICU delirium: hypoactive, hyperactive, or mixed
時間枠:3 months
|
3 months
|
|
|
Psychiatric disorders (anxiety, depression : ( 0 =min; 21 =max) , or PTSD)
時間枠:3 months
|
3 months
|
|
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Glasgow Outcome Scale-Extended (GOSE)
時間枠:3 months
|
3 months
|
|
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Delirium duration
時間枠:3 months
|
Number of ICU days with delirium assessed using the Confusion Assessment Method for the ICU (CAM-ICU).
Delirium duration will be reported as the cumulative number of ICU days with at least one positive CAM-ICU assessment.
Higher values indicate longer delirium duration.
|
3 months
|
|
Delirium phenotype
時間枠:3 months
|
ICU delirium phenotype classified as hypoactive, hyperactive or mixed according to CAM-ICU and RASS assessments.
Results will be reported as the proportion of patients in each category.
|
3 months
|
|
Psychiatric outcomes
時間枠:3 months
|
Symptoms of anxiety and depression assessed using the Hospital Anxiety and Depression Scale (HADS; higher scores indicate greater symptom severity).
PTSD assessed using the PTSD Checklist (PCL-5).
Results will be reported as continuous scores and proportions of patients above validated thresholds
|
3 months
|
|
Functional outcome
時間枠:3 months
|
Functional neurological outcome assessed using the Glasgow Outcome Scale-Extended (GOSE; range 1-8, higher scores indicate better functional recovery).
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3 months
|
|
PICS : Post-Intensive Care Syndrome (PICS)
時間枠:3 months
|
PICS is defined by the presence of cognitive impairment, psychiatric symptoms and/or physical disability at 3 months.
Results will be reported as the proportion of patients fulfilling at least one PICS domain.
|
3 months
|
|
Neurological, psychiatric, or rehabilitation follow-up proposed to the patient
時間枠:3 months
|
Referral for specialized follow-up after ICU discharge.
This outcome will be reported as the proportion of patients referred to neurological consultation, psychiatric consultation, cognitive rehabilitation, physical rehabilitation and/or a multidisciplinary post-ICU clinic.
|
3 months
|
協力者と研究者
捜査官
- 主任研究者:Sarah BENGHANEM, Dr、Assistance Publique - Hôpitaux de Paris
研究記録日
主要日程の研究
研究開始 (推定)
一次修了 (推定)
研究の完了 (推定)
試験登録日
最初に提出
QC基準を満たした最初の提出物
最初の投稿 (実際)
学習記録の更新
投稿された最後の更新 (実際)
QC基準を満たした最後の更新が送信されました
最終確認日
詳しくは
本研究に関する用語
追加の関連 MeSH 用語
その他の研究ID番号
- APHP251947
- IDRCB (その他の識別子:2025-A02589-40)
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