Motor Responses of the Esophagus and Lower Esophageal Sphincter (LES) to Vestibular Stimulation in Man

Marcello Alessandro Caria Institutes of Human Physiology, University of Sassari, Sassari, Italy

Pietro Soro Institutes of Surgery, University of Sassari, Sassari, Italy

Gian Pietro Teatini Institutes of Oto-Rhino-Laryngology, University of Sassari, Sassari, Italy

Francesco Melis Institutes of Human Physiology, University of Sassari, Sassari, Italy

Piero Muretti Institutes of Surgery, University of Sassari, Sassari, Italy

Wilma Masala Institutes of Oto-Rhino-Laryngology, University of Sassari, Sassari, Italy

Francesco Meloni Institutes of Oto-Rhino-Laryngology, University of Sassari, Sassari, Italy

Gian Battista Azzena Institutes of Human Physiology, University of Sassari, Sassari, Italy

Fabrizio Bresadola Institutes of Surgery, University of Sassari, Sassari, Italy

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Abstract

Pressure recordings in the esophageal body, LES and stomach were performed in 10 healthy subjects before and after caloric stimulation of the labyrinth. While esophageal and stomach responses varied or were absent, all subjects showed variations at the LES level. Duration of LES relaxation was increased and both time and amplitude of LES augmentation were significantly reduced. The physiological mechanism of labyrinthine-digestive connections and the possibility of clinical applications are discussed.

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Motor Responses of the Esophagus and Lower Esophageal Sphincter (LES) to Vestibular Stimulation in Man

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Motor Responses of the Esophagus and Lower Esophageal Sphincter (LES) to Vestibular Stimulation in Man

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