Clinical implications and prognostic value of mastoid effusion in the management of aneurysmal subarachnoid hemorrhage

BackgroundThe clinical significance of mastoid effusion (ME) in intensive care unit (ICU) patients has not been well elucidated. Recently, an association between ME and intracranial pressure (ICP) has been reported. We aimed to investigate the clinical implications of ME occurrence in the management...

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Main Authors: Junhyung Kim, Sohyun Kim, Chang Ki Jang, Hyun Jin Han, Keun Young Park, Jung-Jae Kim, Yong Bae Kim, Jiwoong Oh
Format: Article
Language:English
Published: Frontiers Media S.A. 2025-08-01
Series:Frontiers in Neurology
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Online Access:https://www.frontiersin.org/articles/10.3389/fneur.2025.1603869/full
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author Junhyung Kim
Sohyun Kim
Chang Ki Jang
Hyun Jin Han
Keun Young Park
Jung-Jae Kim
Yong Bae Kim
Jiwoong Oh
author_facet Junhyung Kim
Sohyun Kim
Chang Ki Jang
Hyun Jin Han
Keun Young Park
Jung-Jae Kim
Yong Bae Kim
Jiwoong Oh
author_sort Junhyung Kim
collection DOAJ
description BackgroundThe clinical significance of mastoid effusion (ME) in intensive care unit (ICU) patients has not been well elucidated. Recently, an association between ME and intracranial pressure (ICP) has been reported. We aimed to investigate the clinical implications of ME occurrence in the management of aneurysmal subarachnoid hemorrhage (aSAH) patients and its association with their prognosis.MethodsData from patients aged > 18 years who were treated for aSAH in a single institution between January 2020 and December 2022 were retrospectively reviewed. Brain CT or MRI images obtained within the first 14 days after the onset of SAH were evaluated for the presence of ME, which is defined as either opacification or an air-fluid level in the mastoid air cells. We examined the patients’ demographic information, neurological and medical status at admission, aneurysm and treatment characteristics, and clinical outcomes. We then analyzed how these factors were associated with the occurrence of ME.ResultsA total of 114 patients were included in the study. ME was observed in 40 patients (34.5%) within the first 14 days, occurring at a mean of 5.0 ± 3.5 days after the onset of SAH. In multivariate analysis, patients with ME were found to have a higher incidence of tracheostomy (odds ratio [OR] 10.034, p = 0.024), radiologic vasospasm (OR 4.987, p = 0.018), a higher APACHE II score (OR 1.138, p = 0.013), and poor clinical outcomes (OR 4.289, p = 0.041), defined as modified Rankin Scale score > 2 at 90 days. Poor clinical outcomes were independently associated with ME (OR 5.003, p = 0.006).ConclusionThis study demonstrated that ME was observed in 34.5% of aSAH patients and was associated with poor clinical outcomes. ME may serve as a simple and useful prognostic indicator for predicting poor outcomes in aSAH patients.
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spelling doaj-art-e1bce253d34e459e8899084cd38f51b02025-08-20T03:44:54ZengFrontiers Media S.A.Frontiers in Neurology1664-22952025-08-011610.3389/fneur.2025.16038691603869Clinical implications and prognostic value of mastoid effusion in the management of aneurysmal subarachnoid hemorrhageJunhyung Kim0Sohyun Kim1Chang Ki Jang2Hyun Jin Han3Keun Young Park4Jung-Jae Kim5Yong Bae Kim6Jiwoong Oh7Department of Neurosurgery, Yonsei University College of Medicine, Seoul, Republic of KoreaDepartment of Physiology, Yonsei University College of Medicine, Seoul, Republic of KoreaDepartment of Neurosurgery, Yonsei University College of Medicine, Seoul, Republic of KoreaDepartment of Neurosurgery, Yonsei University College of Medicine, Seoul, Republic of KoreaDepartment of Neurosurgery, Yonsei University College of Medicine, Seoul, Republic of KoreaDepartment of Neurosurgery, Yonsei University College of Medicine, Seoul, Republic of KoreaDepartment of Neurosurgery, Yonsei University College of Medicine, Seoul, Republic of KoreaDepartment of Neurosurgery, Yonsei University College of Medicine, Seoul, Republic of KoreaBackgroundThe clinical significance of mastoid effusion (ME) in intensive care unit (ICU) patients has not been well elucidated. Recently, an association between ME and intracranial pressure (ICP) has been reported. We aimed to investigate the clinical implications of ME occurrence in the management of aneurysmal subarachnoid hemorrhage (aSAH) patients and its association with their prognosis.MethodsData from patients aged > 18 years who were treated for aSAH in a single institution between January 2020 and December 2022 were retrospectively reviewed. Brain CT or MRI images obtained within the first 14 days after the onset of SAH were evaluated for the presence of ME, which is defined as either opacification or an air-fluid level in the mastoid air cells. We examined the patients’ demographic information, neurological and medical status at admission, aneurysm and treatment characteristics, and clinical outcomes. We then analyzed how these factors were associated with the occurrence of ME.ResultsA total of 114 patients were included in the study. ME was observed in 40 patients (34.5%) within the first 14 days, occurring at a mean of 5.0 ± 3.5 days after the onset of SAH. In multivariate analysis, patients with ME were found to have a higher incidence of tracheostomy (odds ratio [OR] 10.034, p = 0.024), radiologic vasospasm (OR 4.987, p = 0.018), a higher APACHE II score (OR 1.138, p = 0.013), and poor clinical outcomes (OR 4.289, p = 0.041), defined as modified Rankin Scale score > 2 at 90 days. Poor clinical outcomes were independently associated with ME (OR 5.003, p = 0.006).ConclusionThis study demonstrated that ME was observed in 34.5% of aSAH patients and was associated with poor clinical outcomes. ME may serve as a simple and useful prognostic indicator for predicting poor outcomes in aSAH patients.https://www.frontiersin.org/articles/10.3389/fneur.2025.1603869/fullmastoid effusionmiddle ear effusionintracranial pressuresubarachnoid hemorrhageaneurysmvasospasm
spellingShingle Junhyung Kim
Sohyun Kim
Chang Ki Jang
Hyun Jin Han
Keun Young Park
Jung-Jae Kim
Yong Bae Kim
Jiwoong Oh
Clinical implications and prognostic value of mastoid effusion in the management of aneurysmal subarachnoid hemorrhage
Frontiers in Neurology
mastoid effusion
middle ear effusion
intracranial pressure
subarachnoid hemorrhage
aneurysm
vasospasm
title Clinical implications and prognostic value of mastoid effusion in the management of aneurysmal subarachnoid hemorrhage
title_full Clinical implications and prognostic value of mastoid effusion in the management of aneurysmal subarachnoid hemorrhage
title_fullStr Clinical implications and prognostic value of mastoid effusion in the management of aneurysmal subarachnoid hemorrhage
title_full_unstemmed Clinical implications and prognostic value of mastoid effusion in the management of aneurysmal subarachnoid hemorrhage
title_short Clinical implications and prognostic value of mastoid effusion in the management of aneurysmal subarachnoid hemorrhage
title_sort clinical implications and prognostic value of mastoid effusion in the management of aneurysmal subarachnoid hemorrhage
topic mastoid effusion
middle ear effusion
intracranial pressure
subarachnoid hemorrhage
aneurysm
vasospasm
url https://www.frontiersin.org/articles/10.3389/fneur.2025.1603869/full
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