Publications by authors named "Jaakko Rinne"

Introduction: Ubiquitin carboxy-terminal hydrolase L1 (UCH-L1) is recognized as a diagnostic and prognostic blood biomarker for traumatic brain injury (TBI). This study aimed to evaluate whether UCH-L1 concentrations measured in patients' urine post-injury could serve as a diagnostic or prognostic biomarker for outcomes in various types of acute brain injuries (ABI).

Material And Methods: This pilot study included 46 ABI patients: aneurysmal subarachnoid hemorrhage (n = 22), ischemic stroke (n = 16), and traumatic brain injury (n = 8), along with three healthy controls.

View Article and Find Full Text PDF

Lipidomic alterations have been associated with various neurological diseases. Examining temporal changes in serum lipidomic profiles, irrespective of injury type, reveals promising prognostic indicators. In this longitudinal prospective observational study, serum samples were collected early (46 ± 24 h) and late (142 ± 52 h) post-injury from 70 patients with ischemic stroke, aneurysmal subarachnoid hemorrhage, and traumatic brain injury that had outcomes dichotomized as favorable (modified Rankin Scores (mRS) 0-3) and unfavorable (mRS 4-6) three months post-injury.

View Article and Find Full Text PDF

Aneurysmal subarachnoid hemorrhage (aSAH), ischemic stroke (IS), and traumatic brain injury (TBI) are severe conditions impacting individuals and society. Identifying reliable prognostic biomarkers for predicting survival or recovery remains a challenge. Soluble urokinase type plasminogen activator receptor (suPAR) has gained attention as a potential prognostic biomarker in acute sepsis.

View Article and Find Full Text PDF

Introduction: Spontaneous intracerebral haemorrhage (sICH) is a major cause of morbidity and mortality. Large-scale trials have shown neutral outcomes for surgical interventions. The recent trial suggested functional benefits from surgical intervention.

View Article and Find Full Text PDF

Background And Objectives: Large-scale genome-wide studies of chronic hydrocephalus have been lacking. We conducted a genome-wide association study (GWAS) in normal pressure hydrocephalus (NPH).

Methods: We used a case-control study design implementing FinnGen data containing 473,691 Finns with genotypes and nationwide health records.

View Article and Find Full Text PDF

Background: Brain recovery mechanisms after injuries like aneurysmal subarachnoid hemorrhage (aSAH), ischemic stroke (IS), and traumatic brain injury (TBI) involve brain plasticity, synaptic regeneration, and neuroinflammation. We hypothesized that serum levels of the p75 neurotrophic receptor (p75NTR) and associated signaling proteins, as well as differentially expressed (DE) microRNAs, could predict recovery outcomes irrespective of injury type.

Methods: A prospective patient cohort with ischemic stroke (IS, n = 30), aneurysmal subarachnoid hemorrhage (aSAH, n = 31), and traumatic brain injury (TBI, n = 13) were evaluated (total n = 74).

View Article and Find Full Text PDF

Background: Post-neurosurgical meningitis (PNM) constitutes a grave complication associated with substantial morbidity and mortality. This study aimed to determine the risk factors predisposing patients to PNM following surgery for low- and high-grade gliomas.

Methods: We conducted a retrospective analysis encompassing all patients who underwent glioma surgery involving craniotomy at Turku University Hospital, Turku, Finland, between 2011 and 2018.

View Article and Find Full Text PDF
Article Synopsis
  • - The study aims to assess the feasibility of using PET imaging (specifically with 18F-FDG and 68Ga-DOTANOC tracers) to evaluate inflammation in the walls of unruptured intracranial aneurysms (UIA) prior to surgical treatment.
  • - Patients scheduled for surgery will undergo a series of imaging tests and sample collections to measure the uptake of the tracers in aneurysms and relate it to various clinical and histological factors.
  • - The research has received ethical approval and intends to share its findings through scientific publications and conferences, contributing to the understanding of UIA and arterial inflammation.
View Article and Find Full Text PDF

Objective: To investigate the association between intracranial aneurysms (IAs) and thoracic aortic diameter.

Methods: This observational cohort study examined thoracic aortic diameters in patients with IA. Patients were categorized by IA size (<7 mm and ≥7 mm) and IA status (ruptured/unruptured) based on radiologic findings.

View Article and Find Full Text PDF
Article Synopsis
  • A low ankle-brachial index (ABI) is linked to increased systemic inflammation and a higher risk of cardiovascular events, prompting investigation into its association with unruptured intracranial aneurysms (IAs).
  • A study of 776 patients found a significant correlation between low ABI values and higher prevalence rates of unruptured IAs, indicating that lower ABI scores may suggest greater risk for these conditions.
  • The findings suggest that ABI measurements could be useful for identifying individuals more likely to have unruptured IAs, potentially guiding further screening and prevention strategies.
View Article and Find Full Text PDF

Acute brain injuries (ABIs) pose a substantial global burden, demanding effective prognostic indicators for outcomes. This study explores the potential of urinary p75 neurotrophin receptor (p75NTR) concentration as a prognostic biomarker, particularly in relation to unfavorable outcomes. The study involved 46 ABI patients, comprising sub-cohorts of aneurysmal subarachnoid hemorrhage, ischemic stroke, and traumatic brain injury.

View Article and Find Full Text PDF

Background: The morbidity and mortality of acute subdural hematoma (aSDH) remains high. Several factors have been reported to affect the outcome and survival of these patients. In this study, we explored factors potentially associated with the outcome and survival of surgically treated acute subdural hematoma (aSDH), including postcraniotomy hematomas (PCHs).

View Article and Find Full Text PDF
Article Synopsis
  • - The study aimed to assess trends in the detection rates of asymptomatic unruptured intracranial aneurysms (UIAs) using brain CTA/MRA from 2005 to 2019, revealing a notable increase in detection frequencies during this period.
  • - Analysis of data from over 81,000 scans indicated a significant rise in new UIA cases, with a detection rate growth from 1.7% (2005-2009) to 3.4% (2015-2019), particularly among older age groups.
  • - The findings suggest a trend toward increased identification of smaller UIAs, specifically less than 5 mm, raising important considerations for the management of these asymptomatic conditions in clinical practice.*
View Article and Find Full Text PDF

Background: Aneurysmal subarachnoid hemorrhage (aSAH) is a neurological emergency, affecting a younger population than individuals experiencing an ischemic stroke; aSAH is associated with a high risk of mortality and permanent disability. The noble gas xenon has been shown to possess neuroprotective properties as demonstrated in numerous preclinical animal studies. In addition, a recent study demonstrated that xenon could attenuate a white matter injury after out-of-hospital cardiac arrest.

View Article and Find Full Text PDF

Background: Cerebrovascular involvement of Kawasaki disease (KD) is poorly studied. White matter hyperintensities (WMH) indicate cerebral small vessel disease and increase the risk for stroke.

Purpose: To investigate whether childhood KD is associated with WMHs and other cerebrovascular findings later in adulthood.

View Article and Find Full Text PDF

Objectives: Anterior decompression and fusion in cervical spine has become one of the most common procedures in neurosurgery. In the surgery, cervical cage implants made of different biomaterials are used. Our purpose was to create a cervical cage made of glass fiber-reinforced composite (FRC) filled with bioactive glass particles and to characterize its behavior in quasi-static compression/shear stress loading conditions.

View Article and Find Full Text PDF

Background: Perimesencephalic and nonperimesencephalic nonaneurysmal subarachnoid hemorrhage (PM-naSAH and NPM-naSAH) have a different bleeding pattern and clinical course. The etiology and risk factors for PM-naSAH and NPM-naSAH are unclear. The objective of this study was to compare risk factors and triggering events between PM-naSAH and NPM-naSAH.

View Article and Find Full Text PDF

The diagnosis of mild traumatic brain injury (TBI) is challenging in the acute setting because the symptoms are nonspecific and often transient, or they develop with a delay. In these cases, the criteria for acute head imaging are frequently not fulfilled. This may lead to missed diagnoses in emergency care.

View Article and Find Full Text PDF

Background And Aims: Patients with intracranial aneurysms (IA) have excess mortality for cardiovascular diseases, but little is known on whether atherosclerotic manifestations and IA coexist. We investigated abdominal aortic calcification index (ACI) association with unruptured and ruptured IAs.

Methods: This retrospective case-control study reviews all tertiary centers patients (n = 24,660) who had undergone head computed tomography angiography (CTA), magnetic resonance angiography (MRA) or digital subtraction angiography (DSA) for any reason between January 2003 and May 2018.

View Article and Find Full Text PDF

Importance: Unruptured intracranial aneurysms not undergoing preventive endovascular or neurosurgical treatment are often monitored radiologically to detect aneurysm growth, which is associated with an increase in risk of rupture. However, the absolute risk of aneurysm rupture after detection of growth remains unclear.

Objective: To determine the absolute risk of rupture of an aneurysm after detection of growth during follow-up and to develop a prediction model for rupture.

View Article and Find Full Text PDF

Background: Surgery for degenerative cervical spine disease has escalated since the 1990s. Fusion has become the mainstay of surgery despite concerns regarding adjacent segment degeneration. The patient-specific trends in reoperations have not been studied previously.

View Article and Find Full Text PDF

Background: The pathophysiological basis of idiopathic normal pressure hydrocephalus (iNPH) is still unclear. Previous studies have shown a familial aggregation and a potential heritability when it comes to iNPH. Our aim was to conduct a novel case-controlled comparison between familial iNPH (fNPH) patients and their elderly relatives, involving multiple different families.

View Article and Find Full Text PDF

P75 neurotrophic receptor (p75NTR) is an important receptor for the role of neurotrophins in modulating brain plasticity and apoptosis. The current understanding of the role of p75NTR in cellular adaptation following pathological insults remains blurred, which makes p75NTR's related signaling networks an interesting and challenging initial point of investigation. We identified p75NTR and related genes through extensive data mining of a PubMed literature search including published works related to p75NTR from the past 20 years.

View Article and Find Full Text PDF