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Nonlinearity of the post-spinel transition and its expression in slabs and plumes worldwide.
Nat Commun
January 2025
Center for Advanced Radiation Sources, University of Chicago, Chicago, IL, USA.
Phase transitions in the mantle control its internal dynamics and structure. The post-spinel transition marks the upper-lower mantle boundary, where ringwoodite dissociates into bridgmanite plus ferropericlase, and its Clapeyron slope regulates mantle flow across it. This interaction has previously been assumed to have no lateral spatial variations, based on the assumption of a linear post-spinel boundary in pressure and temperature.
View Article and Find Full Text PDFAutoimmune sensorineural hearing loss/Meniere's disease possibly triggered by neurocysticercosis: a case report.
J Med Case Rep
January 2025
Centers for Advanced Ent, Woodbridge, VA, US.
Background: Meniere's disease arises when an abnormal fluid accumulation results in heightened pressure within the inner ear or labyrinth. Its symptoms encompass vertigo, tinnitus, hearing loss, and a sensation of fullness in the ear. Various triggers for Meniere's disease are known, from smoking and alcohol consumption to recent viral illnesses, allergies, and anxiety.
View Article and Find Full Text PDFFamily and genetic counseling in Leber hereditary optic neuropathy.
Ophthalmic Genet
January 2025
Centre for Eye Research Australia, Royal Victorian Eye and Ear Hospital, East Melbourne, Victoria, Australia.
Aim: Leber hereditary optic neuropathy (LHON) predominantly manifests during adolescence or young adulthood, resulting in sudden and profound vision loss in individuals who previously had normal vision. This abrupt change significantly impacts daily life, necessitating emotional support, counseling and low-vision rehabilitative services to help affected individuals cope with the shock and adapt to their residual vision. The psychosocial burden of dealing with vision loss extends beyond the individuals directly affected by LHON, affecting matrilineal relatives who face the dual challenges of grieving for their loved one's vision loss and managing their own uncertainty about potential vision loss and its familial implications.
View Article and Find Full Text PDFNasal myiasis: an infrequent cause of sinusitis in a critical care patient.
BMJ Case Rep
January 2025
Critical Care Department, Finis Terrae University Faculty of Medicine, Santiago, Chile.
A patient in his 70s, admitted to the cardiac intensive care unit with cardiogenic shock, unexpectedly presented with nasal myiasis during a workup for persistently elevated inflammatory markers. CT scans revealed sinusitis and bronchial secretions, while bronchoscopy identified mucus with positive pathogen testing. Nasal endoscopy was crucial in diagnosing myiasis, and immediate mechanical removal of larvae was performed.
View Article and Find Full Text PDFPredictive factors for severe epistaxis in a tertiary center of Tunisia.
Tunis Med
December 2024
Department of Ear, Nose, Throat and Head and Neck Surgery, Farhat Hached University Hospital, Sousse, Tunisia.
Introduction: Epistaxis is a prevalent clinical condition that can be associated with significant morbidity and places a considerable burden on the healthcare system.
Aim: To ascertain the prevalence of epistaxis in our center and to identify the predictive factors of severity.
Methods: This is a retrospective cross-sectional analytical study of patients who presented to and/or were admitted for epistaxis at our department of Ear, Nose and Throat (ENT) during the period from January 2015 to December 2022.
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