Publications by authors named "M Guyon"

Article Synopsis
  • Adrenal necrosis during pregnancy is a rare but serious condition that can cause severe abdominal pain due to blood clots, often leading to delayed diagnosis and treatment.
  • The study aimed to identify specific clinical and paraclinical signs of adrenal necrosis to improve diagnostic timing and establish a management protocol involving a multidisciplinary approach.
  • Eight case studies of pregnant women diagnosed with adrenal necrosis via CT scans were analyzed, revealing common symptoms, and treatment involving anticoagulation for three to six months is recommended, along with assessments for potential adrenal insufficiency.
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Background: The objective was to evaluate the delay and the acceleration threshold (AT) of movement perception in a population of patients suffering from dizziness and analyze the factors influencing these parameters.

Methods: This prospective study included 256 adult subjects: 16 control and 240 patients (5 acute unilateral vestibular loss, 13 compensated unilateral loss, 32 Meniere diseases, 48 persistent postural-perceptual dizziness (PPPD), 95 benign paroxysmal positional vertigo (BPPV), 10 central cases, 19 bilateral vestibulopathy, 14 vestibular migraine, and 4 age-related dizziness). Patients were evaluated for the sound-movement synchronicity perception (maximum delay between the bed oscillation peak and a beep perceived as synchronous, PST) and AT during a pendular movement on a swinging bed.

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Introduction: Our objective was to develop and to evaluate a system to measure latency and threshold of pendular motion perception based on a swinging bed.

Materials And Methods: This prospective study included 30 healthy adults (age: 32 ± 12 years). All subjects were tested twice with a 10 min.

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Article Synopsis
  • - Perilymphatic fistula (PLF) is identified as a defect in the labyrinthine window, which can be analyzed using virtual endoscopy on CT scans to evaluate changes in radiological density.
  • - The study involved 47 patients with PLF and 98 control patients, diagnosing PLF through a combination of clinical scores and surgical observations.
  • - Results demonstrated that the difference in opening threshold (OT) between affected and unaffected windows was significantly greater in PLF patients, offering a diagnostic sensitivity and specificity of 75% for PLF using a specific OT difference threshold in CT scans.
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