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Open Access September 09, 2025

Biopsy-Negative Giant Cell Arteritis Presenting as Stroke Mimic with Vision Loss and Complex Vascular Disease

Abstract A man in his 60s with multiple vascular comorbidities presented with sudden, painless vision loss in one eye. Although he had a high risk for atherosclerotic events, initial evaluation for stroke was negative for acute ischemia, but found to have markedly elevated inflammatory markers. Accordingly, giant cell arteritis was investigated and Ophthalmologic findings and fulfillment of the 2022 [...] Read more.
A man in his 60s with multiple vascular comorbidities presented with sudden, painless vision loss in one eye. Although he had a high risk for atherosclerotic events, initial evaluation for stroke was negative for acute ischemia, but found to have markedly elevated inflammatory markers. Accordingly, giant cell arteritis was investigated and Ophthalmologic findings and fulfillment of the 2022 American College of Rheumatology/European Alliance of Associations for Rheumatology classification criteria supported the diagnosis of giant cell arteritis, despite a negative temporal artery biopsy. Management included high-dose glucocorticoids and delayed tocilizumab initiation due to the need for multiple vascular surgeries. Vision loss was irreversible, but systemic symptoms resolved and vascular interventions were successful. This case highlights the diagnostic and management complexities of biopsy-negative giant cell arteritis in patients with severe atherosclerotic vascular disease, emphasizing the importance of clinical judgment and established classification criteria when imaging and biopsy results are inconclusive.
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Case Report
Open Access November 01, 2023

Efficacy and Safety of Long-Term Anticoagulation Therapy with Direct Oral Anticoagulants versus Vitamin K Antagonist in Patients with Cerebral Venous Thrombosis

Abstract Introduction: Cerebral venous thrombosis is a rare type of stroke caused by partial or complete occlusion of cerebral venous sinuses. Current guidelines recommend the administration of Low Molecular Weight Heparin (LMWH) during the acute phase and oral Vitamin K antagonists (VKAs) such as warfarin for 3-12 months. Direct Oral Anticoagulants (DOACs) are an attractive alternative to VKAs as [...] Read more.
Introduction: Cerebral venous thrombosis is a rare type of stroke caused by partial or complete occlusion of cerebral venous sinuses. Current guidelines recommend the administration of Low Molecular Weight Heparin (LMWH) during the acute phase and oral Vitamin K antagonists (VKAs) such as warfarin for 3-12 months. Direct Oral Anticoagulants (DOACs) are an attractive alternative to VKAs as therapy for CVT, for its safety and efficacy as anticoagulation therapy for deep venous thrombosis or pulmonary embolism. Method: This systematic review is written based on PRISMA guidelines with electronic search performed on various databases for journals published from June 1, 2018 to June 1, 2023. Results: We found four studies fulfilling the inclusion criteria, with four randomized controlled studies presenting 179 CVT patients treated with DOAC and 150 patients treated with standard therapy. DOACs used in reviewed studies are Dabigatran and Rivaroxaban. Discussion: Administration of DOACs as anticoagulation therapy in patients with CVT presents better recanalization rate with no significant differences in efficacy compared with VKAs, along with a better safety profile through similar mortality rate across two groups. Conclusion: DOACs as long-term anticoagulation therapy in patients with CVT has better efficacy along with a similar safety profile compared to VKA.
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Systematic Review
Open Access November 28, 2025

Determinants of the Carotid Tortuosity Index: Evidence from Digital Subtraction Angiography

Abstract Introduction: Stroke remains one of the leading causes of death and disability worldwide, with ischemic stroke accounting for most cases. Structural vascular factors such as carotid artery tortuosity have gained attention as potential markers of vascular aging and cerebrovascular risk. The carotid tortuosity index (CTI), defined as the ratio of actual vessel length to the straight-line [...] Read more.
Introduction: Stroke remains one of the leading causes of death and disability worldwide, with ischemic stroke accounting for most cases. Structural vascular factors such as carotid artery tortuosity have gained attention as potential markers of vascular aging and cerebrovascular risk. The carotid tortuosity index (CTI), defined as the ratio of actual vessel length to the straight-line distance between two fixed points, provides a quantitative measure of arterial curvature. A CTI value of ≥1.2 indicates pathological tortuosity. Although noninvasive modalities such as CTA and MRA are frequently used, digital subtraction angiography (DSA) remains the gold standard for evaluating vessel geometry due to its higher spatial precision. This study aimed to determine the association of age, sex, and hypertension with CTI measured by DSA. Methods: A cross-sectional study was conducted from November to December 2025 at the Neurointervention Clinic, RS Pelni Jakarta, Indonesia, involving 61 adult patients who underwent carotid DSA. CTI was measured bilaterally using digital imaging software and classified as <1.2 (non-tortuous) or ≥1.2 (tortuous). Clinical data, including age, sex, and hypertension status, were collected from medical records and analyzed using bivariate tests. Results: Older age (≥65 years), female sex, and hypertension were significantly associated with higher CTI values on both carotid sides. Tortuosity was more common among hypertensive patients and elderly females, indicating the influence of vascular remodeling and chronic hemodynamic stress. Conclusion: Carotid tortuosity increases with age, hypertension, and female sex. DSA-based CTI measurement provides a reliable and precise approach for evaluating vascular changes associated with cerebrovascular risk.
Article
Open Access May 11, 2025

Why Smoking Right after Waking Up Is Harmful to Health

Abstract Smoking is a well-documented risk factor of cardiovascular diseases (CVD) and premature death. Previous studies have focused on smoking duration and total cigarette consumption, but a 2024 paper by Li et al. highlights the time between waking up and smoking the first cigarette as a risk factor of mortality, noting that smoking ≤5 minutes after waking is strongly linked to a higher risk of [...] Read more.
Smoking is a well-documented risk factor of cardiovascular diseases (CVD) and premature death. Previous studies have focused on smoking duration and total cigarette consumption, but a 2024 paper by Li et al. highlights the time between waking up and smoking the first cigarette as a risk factor of mortality, noting that smoking ≤5 minutes after waking is strongly linked to a higher risk of mortality and a higher chance of incident myocardial infarction or stroke, and may be a sign of nicotine dependence. Another study by Hu et al. (2024) states that early-morning smoking more strongly correlates with incident type 2 diabetes than total cigarette consumption, adding to preceding evidence that early-morning smoking is linked to type 2 diabetes and chronic obstructive pulmonary disease (COPD). The demonstrated association with adverse health outcomes and early-morning smoking suggests delayed time to first cigarette can be a useful target as part of smoking interventions. These findings indicate the necessity of public health policies targeting smoking behaviour in addition to cessation as a way to decrease the associated disease burden.
Letter to Editor
Open Access October 09, 2024

Neuroprotection: at what cost, at what time, at what price?

Abstract Stroke and its disability have deserved the notoriety of a severe and potentially lethal condition, whose treatment is still challenging. The widely craved result of saving as much as possible from the neural tissue and eventually reviving what is thought to be in the ischemic penumbra – if not already dead and gone – is the outcome every clinician is dreaming of. There are several reviews on the [...] Read more.
Stroke and its disability have deserved the notoriety of a severe and potentially lethal condition, whose treatment is still challenging. The widely craved result of saving as much as possible from the neural tissue and eventually reviving what is thought to be in the ischemic penumbra – if not already dead and gone – is the outcome every clinician is dreaming of. There are several reviews on the issue, which have discussed several options of achieving neuroprotection in acute ischemic stroke. Of course, reviews are not and do not pretend to be exhaustive; new drugs enter repeatedly in the scene. We would limit our comments on some of the pharmacological agents, that although seem to be worldwide available, are still looking for obtaining the citizenship in the therapeutic armamentarium of acute ischemic stroke.
Commentary
Open Access November 21, 2022

Impact of Lesion Locations on the Severity of Post-Stroke Depression

Abstract Background: Depression occurs in one-third of stroke patients, in what is known as post-stroke depression. The lesion sites in stroke have been associated with the degree of depression. However, studies have provided different perspectives, and this necessitates further clarification. This study investigates the relationship between the lesion sites and the severity of depression in [...] Read more.
Background: Depression occurs in one-third of stroke patients, in what is known as post-stroke depression. The lesion sites in stroke have been associated with the degree of depression. However, studies have provided different perspectives, and this necessitates further clarification. This study investigates the relationship between the lesion sites and the severity of depression in ischemic stroke patients. Methods: This cross-sectional study was conducted between January and April 2020. All samples were obtained from admitted patients with ischemic stroke who agreed to participate in the study. Data were collected using Beck’s Depression Inventory-II (BDI-II), which was used to determine the severity of depression, and the lesion sites were based on radiological imaging interpretation. Results: The study showed a significant association between the lesion site and the degree of depression (OR = 5,368, p-value = 0,013). Lesions in the frontal lobe demonstrated stronger associations with the severity of depression. Conclusion: The location of the lesion, especially in the frontal lobe, was associated with more severe post-stroke depression.
Case Study
Open Access September 08, 2022

Case Fatality Rate and Prognosis of Stroke Hospitalized Patients: A retrospective hospital-based study at the Korle Bu Teaching Hospital

Abstract Introduction: Stroke is associated with high mortality. It is the main neurological cause of mortality and the most important cause of disability worldwide. In the year 2007, Stroke was the third cause of admission at the Korle-Bu Teaching Hospital, and the number one cause of death. Objective: To determine the probability of survival (case-fatality rates) of stroke patients admitted [...] Read more.
Introduction: Stroke is associated with high mortality. It is the main neurological cause of mortality and the most important cause of disability worldwide. In the year 2007, Stroke was the third cause of admission at the Korle-Bu Teaching Hospital, and the number one cause of death. Objective: To determine the probability of survival (case-fatality rates) of stroke patients admitted at the Korle- Bu Teaching Hospital during the period 2007. Method: A Retrospective descriptive study of Surgical/Medical Emergency, SME and the Medical wards admissions and discharges from 1st January 2007 to 31st December, 2007. Results: A total of 250 hospitalized stroke patients were identified, of which 68(27%) were from the SME and 182(72%) from the medical wards. The mean age (SD) was 57.6(14.7) and 52% were males. Case fatality rate was 52% at the SME versus 35% at the Medical wards) whilst the risk of death in males expressed as risk ratio (RR) was 2.1, (95% CI 0.70-5.6) vs. RR=1.3, (95% CI 0.73-2.5) in females and the median survival time was 2days (95% CI 1.5-2.4) versus 7 days (95% CI 6.3-7.6) at the SME and Medical respectively. The type of admission and stroke outcome was significant P=0.01 (95%CI 0.02-0.14). Conclusion: Stroke was associated with high mortality. The risk of dying from stroke was higher at the SME Findings were independent of stroke subtype, stroke onset and any associated co-morbidities.
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Article
Open Access August 19, 2022

COVID-19 and Central Nervous System Diseases

Abstract We reviewed the influence of coronavirus disease 2019 (COVID-19) on the central nervous system reported in the literature since its prevalence. Common neurological symptoms of COVID-19 include altered or impaired consciousness, headache, dizziness, cerebrovascular accidents, and seizures, etc. Encephalopathy caused by or related to COVID-19 includes stroke, acute encephalitis, and Guillain-Barre [...] Read more.
We reviewed the influence of coronavirus disease 2019 (COVID-19) on the central nervous system reported in the literature since its prevalence. Common neurological symptoms of COVID-19 include altered or impaired consciousness, headache, dizziness, cerebrovascular accidents, and seizures, etc. Encephalopathy caused by or related to COVID-19 includes stroke, acute encephalitis, and Guillain-Barre syndrome. Concomitant COVID-19 in patients with vascular risk factors increased the risk of stroke; the hypercoagulable state and vascular dysfunction caused by COVID-19 also led to stroke. Acute encephalitis was usually accompanied by a history of headache, fever, and altered mental status, and shown hemorrhagic lesions or high signal on MRI. In Guillain-Barre syndrome, there was a time lag between infection with the primary pathogen and the onset of neurological symptoms, which generally manifest as limb paralysis and various sensory abnormalities. The review illustrated that COVID-19 lead to serious consequences of brain and brought difficulties to the treatment. Exploring the neural mechanisms of COVID-19 to better understand the activity of the virus in the brain and to prevent further viral damage to the brain is an urgent issue.
Brief Review
Open Access November 12, 2021

A Case Report of Stroke While Driving: Minor Traumas Might be not Minor at all

Abstract Stroke while driving is an uncommon occurrence, but which might have serious medical and legal implications. While still reported casually and with very few systematized studies, sources underscore mainly the neurological picture and risk factors that will lead herein. Car crashes follow as a rule the event of the stroke. We describe the case of a middle-aged patient that had an incomplete loss of [...] Read more.
Stroke while driving is an uncommon occurrence, but which might have serious medical and legal implications. While still reported casually and with very few systematized studies, sources underscore mainly the neurological picture and risk factors that will lead herein. Car crashes follow as a rule the event of the stroke. We describe the case of a middle-aged patient that had an incomplete loss of the car control, with a crash of minor severity and with no external signs of trauma. In spite that the patient underwent successfully a thrombectomy intervention, he presented continuously with refractory hypotension. The clinical picture raised suspicions of an internal blood loss and whole body angiography detected the rupture of the mesenteric artery. This sequence of events (stroke while driving – crash – seatbelt injury – mesenteric rupture) is probably not reported before, but mechanistically an unlucky combination to be kept in mind while dealing with such cases.
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Case Report

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