Publications by authors named "Jan Rodemerk"

Objective: The size of unruptured intracranial aneurysms (UIA) remains the most crucial risk factor for treatment decisions. On the other side, there is a non-negligible portion of small ruptured IA and large stable UIA. This study aimed to identify the patients' characteristics related to IA size in the context of IA rupture status.

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Objective: Despite recent advances in neuro-intensive care, there is still considerable mortality in patients with aneurysmal subarachnoid hemorrhage (SAH). In this long-term monocentric observational cohort study, we aimed to analyze the rates, timing, and predictors of mortality after SAH.

Methods: All consecutive SAH cases treated between January 2003 and June 2016 were included.

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Background: Thyroid hormones were reported to exert neuroprotective effects after ischemic stroke by reducing the burden of brain injury and promoting post-ischemic brain remodeling.

Objective: We aimed to analyze the value of thyroid hormone replacement therapy (THRT) due to pre-existing hypothyroidism on the clinical course and outcome of aneurysmal subarachnoid hemorrhage (SAH).

Methods: SAH individuals treated between January 2003 and June 2016 were included.

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Background: Aneurysmal subarachnoid hemorrhage (SAH) presents a devastating diagnosis for elderly individuals, resulting in high morbidity and mortality rates. The aim of the study was to analyze the impact of medical history and complications during SAH on the outcome of elderly patients.

Methods: Consecutive SAH cases aged ≥ 65 years old treated in our hospital between 01/2003 and 06/2016 were included (n = 218).

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Objective: Chronic hydrocephalus requiring shunt placement is a common complication of aneurysmal subarachnoid hemorrhage (SAH). Different risk factors and prediction scores for post-SAH shunt dependency have been evaluated so far. We analyzed the value of ventricle measurements for prediction of the need for shunt placement in SAH patients.

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Objective: Acute hydrocephalus is a common complication in patients with aneurysmal subarachnoid hemorrhage (SAH). Several ventricular indices have been introduced to enable measurements of ventricular morphology. Previously, researchers have showed their diagnostic value for various neurological disorders.

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Background: Previous medical history strongly contributes to the genesis of intracranial aneurysms (IA). A possible impact of regular medication on the occurrence of abdominal aortic aneurysms has been reported.

Aim: To evaluate the value of regular medication on the risk of development and rupture of IA.

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Background And Purpose: Data on the temporal distribution of the bleeding time of intracranial aneurysms are limited to a few small studies. With this study, the aim was to analyze time patterns of the occurrence of aneurysmal subarachnoid hemorrhage (SAH), particularly focusing on the impact of patients' socio-demographic and clinical characteristics on the ictus timing.

Methods: The study is based on an institutional SAH cohort with 782 consecutive cases treated between January 2003 and June 2016.

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Anemia is a common, treatable condition in patients with aneurysmal subarachnoid hemorrhage (SAH) and has been associated with poor outcome. As there are still no guidelines for anemia management after aneurysm rupture, we aimed to identify outcome-relevant severity of anemia in SAH. We systematically searched PubMed, Embase, Scopus, Web of Science, and Cochrane Library for publications before Oct 23rd, 2022, reporting on anemia in SAH patients.

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Background And Purpose: Aneurysmal subarachnoid hemorrhage (aSAH) is characterized by high morbidity and mortality proceeding from the initial severity and following complications of aSAH. Various scores have been developed to predict these risks. We aimed to analyze the clinical value of different radiographic scores for prognostication of aSAH outcome.

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Article Synopsis
  • * Anemia was found to be highly prevalent, affecting approximately 83% of patients, with a specific focus on those whose hemoglobin levels dropped below 9 g/dL, which was linked to higher risks of cerebral infarctions, in-hospital mortality, and poor recovery outcomes.
  • * The findings suggest that both the timing and duration of severe anemia post-SAH are critical, leading to recommendations for further research on transfusion strategies to improve patient outcomes.
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Background And Purpose: According to the International Study of Unruptured Intracranial Aneurysms, small (<7 mm) unruptured intracranial aneurysms (IAs) of the anterior circulation (aC) carry a neglectable 5-year rupture risk. In contrast, some studies report frequencies of >20% of all ruptured IAs being small IAs of the aC. This contradiction was addressed in this study by analyzing the rates and risk factors for rupture of small IAs within the aC.

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Objective: The pathophysiology of development, growth, and rupture of arteriovenous malformations (AVMs) is only partially understood. However, inflammation is known to play an essential role in many vascular diseases. This feasibility study was conducted to investigate the expression of enzymes (cyclooxygenase 2 [COX-2] and NLRP3 [NOD-, LRR-, and pyrin domain-containing protein 3]) in the AVM nidus that are essential in their inflammatory pathways and to explore how these influence the pathophysiology of AVMs.

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Temozolomide (TMZ) is the first line of standard therapy in glioblastoma (GBM). However, relapse occurs due to TMZ resistance. We attempted to establish an acquired TMZ resistance model that recapitulates the TMZ resistance phenotype and the relevant gene signature.

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Background: Preoperative traction with the Gardner-Wells tongs (PTGWT) is a valuable option for cervical spine injuries with malalignment. The aim of this study was to analyze the factors related to the treatment success of PTGWT.

Methods: All consecutive cases with PTGWT due to cervical spine injury with malalignment treated between 01/2010 and 09/2020 were included.

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Article Synopsis
  • The study explores the role of COX-2, an enzyme involved in inflammation, in the development and characteristics of intracranial aneurysms (IAs).
  • It examines COX-2 expression in wall samples from 40 patients with both ruptured and unruptured IAs, using various imaging techniques and staining methods.
  • Key findings include a correlation between increased COX-2 expression and larger IA sizes, as well as a potential link between COX-2 levels and MRI signal changes, suggesting it could be a useful biomarker for IA instability.
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Objective: Despite recent advances in molecular biology and genetics, the development of intracranial aneurysms (IA) is still poorly understood. Elucidation of the processes occurring in the IA wall is essential for a better understanding of IA pathophysiology. We sought to analyze the current evidence from histological, molecular and genetic studies of IA.

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