Purpose: To present a case of kissing aneurysms of the anterior communicating artery treated with endovascular coil embolization and discuss the advantages and disadvantages of this technique compared with neck clipping.
Case Report: A 48-year-old man became drowsy and was admitted to the hospital; he had right hemiparesis and aphasia. Computed tomography revealed diffuse subarachnoid hemorrhage; diagnostic angiography identified an aneurysm at the left A1-A2 junction of the anterior communicating artery and another in the distal anterior cerebral artery (ACA). Endovascular coil embolization was performed on the same day. During the procedure, the 3-mm-diameter junctional aneurysm was successfully packed with coils, but an additional aneurysm was suspected; right carotid angiography following embolization of the left aneurysm clearly showed a mirror image aneurysm of the right A1-A2 junction. The right aneurysm was treated using the same technique. The broad-necked ACA aneurysm was unsuitable for embolization, so neck clipping was performed 5 weeks later. The patient was discharged to his home following complete recovery 7 weeks after the coil embolization.
Conclusions: Kissing aneurysms are a rare and specific type of multiple aneurysms that require caution in diagnosis and surgical management. Endovascular treatment may be suitable because it does not involve dissection around the aneurysms.
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http://dx.doi.org/10.1583/05-1637R.1 | DOI Listing |
Front Neurol
January 2025
Department of Neurology, Ajou University School of Medicine, Suwon, Republic of Korea.
Background: This study aims to investigate how A1 segment asymmetry-also known as A1 dominancy-influences the development of the anterior communicating artery aneurysm (AcomA) as it affects hemodynamic conditions within the circle of Willis (COW). Using time-of-flight magnetic resonance angiography (TOF-MRA), the research introduces a novel approach to assessing shear stress in A1 segments to uncover the hemodynamic factors contributing to AcomA formation.
Method: An observational study was conducted over 6 years at a tertiary university hospital's outpatient clinic.
Commun Biol
January 2025
Department of Psychology, The University of Hong Kong, Hong Kong, China.
Traditional decision-making models conceptualize humans as adaptive learners utilizing the differences between expected and actual rewards (prediction errors, PEs) to maximize outcomes, but rarely consider the influence of violations of emotional expectations (emotional PEs) and how it differs from reward PEs. Here, we conducted a fMRI experiment (n = 43) using a modified Ultimatum Game to examine how reward and emotional PEs affect punishment decisions in terms of rejecting unfair offers. Our results revealed that reward relative to emotional PEs exerted a stronger prediction to punishment decisions.
View Article and Find Full Text PDFCureus
December 2024
Department of Orthopedics, Sri Devaraj Urs Academy of Higher Education and Research, Kolar, IND.
Introduction Degenerative spondylolisthesis (DS) is a degenerative condition characterized by subluxation of one vertebral body anterior to the adjacent inferior vertebral body with an intact pars. Conservative treatment approaches, such as steroid injections and physical therapy, may work well at first, but in resistant situations, surgery is frequently necessary. Posterolateral lumbar fusion (PLF) has been widely used, but transforaminal lumbar interbody fusion (TLIF) offers theoretical advantages such as improved alignment and enhanced fusion rates.
View Article and Find Full Text PDFEur J Neurosci
January 2025
Faculty of Life Sciences, Leipzig University, Leipzig, Germany.
Communication sound processing in mouse AC is lateralized. Both left and right AC are highly specialised and differ in auditory stimulus representation, functional connectivity and field topography. Previous studies have highlighted intracortical functional circuits that explain hemispheric stimulus preference.
View Article and Find Full Text PDFJBMR Plus
February 2025
Radiology and Imaging Sciences, National Institutes of Health Clinical Center, National Institutes of Health, Bethesda, MD 20892, United States.
Jansen metaphyseal chondrodysplasia (JMC) is an ultra-rare disorder caused by constitutive activation of parathyroid hormone type 1 receptor (PTH1R). We sought to characterize the craniofacial phenotype of patients with the disease. Six patients with genetically confirmed JMC underwent comprehensive craniofacial phenotyping revealing a distinct facial appearance that prompted a cephalometric analysis demonstrating a pattern of mandibular retrognathia.
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