Publications by authors named "A Oliven"

Article Synopsis
  • The study investigates the role of the genioglossus (GG) muscle in tongue movement during breathing, specifically focusing on the anterior fibers and their EMG activity during wakefulness and sleep.
  • Results showed that electrical stimulation of the anterior GG fibers caused tongue retraction, while the longitudinal fibers were responsible for protrusion.
  • The findings reveal distinct control mechanisms for the anterior GG compared to the protrusive fibers, suggesting that treatments for obstructive sleep apnea should avoid stimulating the retractor fibers of the GG.
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Importance: Evidence is lacking from randomized clinical trials of hypoglossal nerve stimulation in obstructive sleep apnea (OSA).

Objective: To evaluate the safety and effectiveness of targeted hypoglossal nerve stimulation (THN) of the proximal hypoglossal nerve in patients with OSA.

Design, Setting, And Participants: This randomized clinical trial (THN3) was conducted at 20 centers and included 138 patients with moderate to severe OSA with an apnea-hypopnea index (AHI) of 20 to 65 events per hour and body mass index (calculated as weight in kilograms divided by height in meters squared) of 35 or less.

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Study Objectives: The major goal of the study was to determine whether changes in tongue morphology under selective hypoglossal nerve therapy for obstructive sleep apnea were associated with alterations in airway patency during sleep when specific portions of the hypoglossal nerve were stimulated.

Methods: This case series was conducted at the Johns Hopkins Sleep Disorders Center at Johns Hopkins Bayview Medical Center. Twelve patients with apnea implanted with a multichannel targeted hypoglossal nerve-stimulating system underwent midsagittal ultrasound tongue imaging during wakefulness.

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Background: Acute exacerbations of chronic obstructive pulmonary disease (AECOPD) are a healthcare burden. Acupuncture improves dyspnea in patients with chronic obstructive pulmonary disease (COPD) but, to the best of our knowledge, has not been tested in AECOPD. Here, we evaluated the efficacy and safety of true acupuncture added to standard of care (SOC), as compared with both sham procedure plus SOC and SOC only, for the treatment of AECOPD among inpatients.

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Virtual patients (VP) have been advocated as reliable tools for teaching and evaluating clinical skills and competence. We have developed an internet-based, OSCE-like, conversational VP system designed both for training and assessment of medical students. The system, that encompasses complete patient management from H&P to diagnostic procedures and treatment, has now been used regularly during the clerkship of internal medicine.

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