Cases reported "Motion Sickness"

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1/20. Visual-vestibular habituation and balance training for motion sickness.

    BACKGROUND AND PURPOSE: This case report describes physical therapy for motion sickness in a 34-year-old woman. The purpose of the report is twofold: (1) to provide an overview of the literature regarding motion sickness syndrome, causal factors, and rationale for treatment and (2) to describe the evaluation and treatment of a patient with motion sickness. CASE DESCRIPTION AND OUTCOMES: The patient initially had moderate to severe visually induced motion sickness, which affected her functional abilities and prevented her from working. Following 10 weeks of a primarily home-based program of visual-vestibular habituation and balance training, her symptoms were alleviated and she could resume all work-related activities. DISCUSSION: Although motion sickness affects nearly one third of all people who travel by land, sea, or air, little documentation exists regarding prevention or management.
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keywords = motion sickness, sickness, motion
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2/20. motion sickness susceptibility due to a small hematoma in the right supramarginal gyrus.

    We describe a unique case of a woman who twice experienced episodes of susceptibility to motion sickness that lasted for several months. Both times a small hemorrhage from a cavernous angioma in the supramarginal gyrus (SMG) was detected by MRI. Because the SMG is part of area 7, which belongs to a network of multisensory visual-vestibular cortical areas, we conclude that a small lesion there can cause motion sickness susceptibility.
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ranking = 0.22854241010783
keywords = motion sickness, sickness, motion
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3/20. vertigo in virtual reality with haptics: case report.

    A researcher was working with a desktop virtual environment system. The system was displaying vector fields of a cyclonic weather system, and the system incorporated a haptic display of the forces in the cyclonic field. As the subject viewed the rotating cyclone field, they would move a handle "through" the representation of the moving winds and "feel" the forces buffeting the handle as it moved. Stopping after using the system for about 10 min, the user experienced an immediate sensation of postural instability for several minutes. Several hours later, there was the onset of vertigo with head turns. This vertigo lasted several hours and was accompanied with nausea and motion illusions that exacerbated by head movements. Symptoms persisted mildly the next day and were still present the third and fourth day, but by then were only provoked by head movements. There were no accompanying symptoms or history to suggest an inner ear disorder. physical examination of inner ear and associated neurologic function was normal. No other users of this system have reported similar symptoms. This case suggests that some individuals may be susceptible to the interaction of displays with motion and movement forces and as a result experience motion illusions. Operators of such systems should be aware of this potential and minimize exposure if vertigo occurs.
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ranking = 2.2860501903653E-5
keywords = motion
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4/20. Dramatic favorable responses of children with learning disabilities or dyslexia and attention deficit disorder to antimotion sickness medications: four case reports.

    Responses of four learning disabled children who showed dramatic improvements to one or more antimotion-sickness-antihistamines and -stimulants are described qualitatively. These cases were selected from a prior quantitative study in which three antihistamines (meclizine, cyclizine, dimenhydrinate) and three stimulants (pemoline, methylphenidate, dextroamphetamine) were tested in variable combinations (using a specific clinical method) for favorable responses by 100 children characterized by diagnostic evidence of learning disabilities and cerebellar-vestibular dysfunctioning. Pending validation in double-blind controlled studies, these qualitative results suggest that the "cerebellar-vestibular (CV) stabilizing" antimotion-sickness medications, piracetam included, and their combinations may be shown to be therapeutically useful in treating children with learning disabilities or dyslexia and attention deficit disorder.
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ranking = 0.44761977872185
keywords = motion sickness, sickness, motion
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5/20. Simulator sickness provoked by a human centrifuge.

    Simulator sickness is now a well-recognized entity. It is recognized as a form of motion sickness, having a higher incidence in the more sophisticated simulators. Human centrifuges (dynamic simulators) are the newest innovation in aircrew training devices. Simulator sickness has never been reported in human centrifuges. We are reporting on a case of delayed simulator sickness in a pilot-subject after a centrifuge experience. A review of the "psycho-physiological" problems routinely experienced by subjects on human centrifuges indicates such problems are due to simulator sickness, although they are not reported as such. In this paper, we give a brief overview of simulator sickness and briefly discuss simulator sickness, as related to the human centrifuge experience.
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ranking = 0.12691158082512
keywords = motion sickness, sickness, motion
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6/20. Simulator sickness in an army simulator.

    Simulator sickness describes a symptom reported by aircrew during or after flight simulator training. Some features are common to motion sickness but others, which are unusual during real flight, are believed to result specifically from the simulator environment. This paper describes the results of a questionnaire study examining the incidence and factors influencing simulator sickness in any army training system. Case histories are described and conclusions drawn with respect to health and safety, training and the effect on flight operations. One hundred and fifteen aircrew were registered in the questionnaire study. Data were collected from a history questionnaire, a post-sortie report and a delayed report form. Sixty-nine per cent of aircrew gave a history of symptoms in the simulator and 59.9 per cent experienced at least one symptom during the study period although few symptoms were rated as being other than slight. Only 3.6 per cent of subjects reported symptoms of disequilibrium. Comparative analysis of the results was performed after scoring symptoms to produce a sickness rating. This showed: association between simulator-induced sickness and greater flying experience; adaptation to the simulator environment; a history of sea sickness may predict susceptibility to simulator sickness; and no association of crew role and simulator sickness. Although some authorities believe simulator sickness to be a potential flight safety hazard there was little evidence from this study. Guidelines for the prevention of the problem are presented now that many factors have been identified. A general policy to 'ground' aircrew for a period following simulator training is not necessary, but severe cases should be assessed individually.
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ranking = 0.13007167476792
keywords = motion sickness, sickness, motion
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7/20. Scopolamine withdrawal syndrome.

    As travel by air and ship becomes increasingly popular, more and more travelers are using transdermal scopolamine to avoid motion sickness. In fact, it has become almost fashionable for ocean travelers to sit on the sun deck with a patch behind the ear. This article describes withdrawal symptoms in a patient who used transdermal scopolamine beyond the recommended 3 days.
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ranking = 0.11111111111111
keywords = motion sickness, sickness, motion
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8/20. Control of simulator sickness in an AH-64 aviator.

    An active 33-year-old Army AH-64 aviator with simulator sickness refractory to routine preventive measures was successfully managed with transdermal scopolamine. Although adaptation is the ultimate means for control of simulator sickness, the use of anti-motion sickness medication, specifically transdermal scopolamine, may be a useful adjuvant in selected aviators.
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ranking = 0.12059139293952
keywords = motion sickness, sickness, motion
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9/20. Transdermal scopolamine-induced psychosis.

    Transdermal scopolamine (Transderm-Scop) is being increasingly used for effective prophylaxis of motion sickness. It is reported to have a lower incidence of CNS side effects than orally administered scopolamine. Although uncommon, such side effects occur more often in the elderly, in those with preexisting psychiatric disease, and in patients concurrently taking other medications with anticholinergic activity. Correct diagnosis may be delayed by the occult location of the delivery system, delayed onset of symptoms, prolonged action, absence of peripheral manifestations, and negative toxicologic screening tests. Treatment is usually supportive. physostigmine should be reserved for the treatment of severe symptoms.
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ranking = 0.11111111111111
keywords = motion sickness, sickness, motion
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10/20. Simulator sickness: a problem for Army aviation.

    "Simulator Sickness" describes a symptom complex frequently reported by pilots during or after flight simulator training. There were 112 helicopter pilots at a U.S. Army AH-1 Cobra Flight weapons Simulator (FWS) who completed a symptom-oriented subjective questionnaire. Of these, 40% reported symptoms of dysequilibrium; pilots developing simulator sickness had significantly more total and AH-1 flight time. Adaptation to the syndrome occurred with increasing FWS experience. The history and aeromedical significance of simulator sickness are briefly reviewed, and a case report presented. A mandatory grounding policy in use locally is described. Potential treatment strategies are briefly discussed.
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ranking = 0.0094802818284055
keywords = sickness
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