Special problems of the asthmatic patient

Wallace, Jeanne M.; Stein, Susan J.; Au, Janet

doi:10.1097/00063198-199701000-00011

Cited by 10 publications

(8 citation statements)

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“…Recent reports 2,3,11–14 have described individuals with VCD previously thought to have exercise‐induced asthma, a common clinical problem that occurs primarily in individuals who engage in physical activity. Symptoms of VCD during exercise reportedly result in discontinuation of physical activity, loss of consciousness, emergency room visits, hospitalization, excessive use of medication, intubation, and even tracheostomy.…”

Section: Introductionmentioning

confidence: 99%

A Treatment for Vocal Cord Dysfunction in Female Athletes: An Outcome Study

2001

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Section: Introductionmentioning

confidence: 99%

A Treatment for Vocal Cord Dysfunction in Female Athletes: An Outcome Study

2001

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“…It has been suggested that the mechanisms by which hypoxia and cooling cause airway constriction might play a role in the enhanced airway hyperresponsiveness of asthmatic patients at high altitude (13). Conversely, it has been reported that asthmatic patients may have airway hyporesponsiveness at high altitude (5,27). Asthmatic patients may do well at high altitude due to the following possible mechanisms: 1) expiration at low atmospheric pressure is easier compared with atmospheric pressure at sea level; 2) absence of allergen and pollutants; and 3) increased level of cortisol (5) and increased activity of the sympathoadrenal system, leading to liberation of catecholamines (14,28).…”

Section: Discussionmentioning

confidence: 99%

Modulation of the contractile responses of guinea pig isolated tracheal rings after chronic intermittent hypobaric hypoxia with and without cold exposure

Chakrabarty

Fahim²

2005

Journal of Applied Physiology

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Previous studies have documented that repetitive exposure to intermittent hypoxia, such as that encountered in preparation to high-altitude ascent, influences breathing. However, the impact of intermittent hypoxia on airway smooth muscle has not been explored. Ascents to high altitude, in addition to hypoxia, expose individuals to cold air. The objective of the present study is to examine the effect of chronic intermittent hypobaric hypoxia (CIH) and CIH combined with cold exposure (CIHC) on tracheal smooth muscle responses to various contractile and relaxant agonists. Experiments were performed on tracheal rings harvested from adult guinea pigs exposed either to CIH or CIHC [14 days (6 h/day) at barometric pressure of 350 mmHg with and without cold exposure of 5 degrees C] or to room air (normoxia). CIH and CIHC attenuated maximum contractile responses to ACh compared with normoxia. The maximum contractile response to histamine decreased with CIH, whereas CIHC restored the response back to normoxia. Both CIH and CIHC attenuated maximum contractile responses to 5-HT. Altered contractile responses after CIH and CIHC were independent of epithelium. Isoproterenol-induced relaxation was not altered by CIH, whereas it was enhanced after CIHC, and these responses were independent of the epithelium. The data demonstrate that intermittent exposure to hypoxia profoundly influences contractile response of tracheal smooth muscle, and cold exposure can further modulate the response, implying the importance of cold at high altitude.

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“…[3][4][5][6][7][8][9] Certain medical conditions represent known risk factors for the scuba diver (eg, patent foramen ovale, middle and inner ear conditions, functional lung conditions) and the requirements that define medical fitness suitable for diving are well defined, although no international standard has been established yet. 1,[10][11][12][13][14][15][16] The published medical literature has so far focused on injuries and trauma received during or after scuba diving. [17][18][19] To the best of our knowledge, no study has described how major ablative and reconstructive surgery in the head and neck area affects diving ability.…”

Section: Scuba Diving After Extensive Head and Neckmentioning

confidence: 99%

Scuba Diving After Extensive Head and Neck Reconstructive Surgery

Thiele

Knape

Mischkowski

et al. 2016

Journal of Craniofacial Surgery

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In the case described herein, the CT scans revealed tooth fragments embedded in the tongue. The parasagittal cuts revealed the anterior-posterior and slightly cranial-caudal direction of the fragments and the parasagital cuts revealed that the fragments followed a left to right direction. These findings allowed the precise localization of the foreign bodies and facilitated their removal from the lacerations in the tongue with the aid of a long hemostatic clamp without the need for incisions. FIGURE 3. Postoperative x-ray (orthopantomography) of the 3rd patient after surgical open bite correction with Le Fort 1 downfracture. FIGURE 2. Postoperative x-ray of the skull (posterior-anterior) of the second patient after open reduction and osteosynthesis of the panfacial fracture.

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Special problems of the asthmatic patient

Cited by 10 publications

References 0 publications

A Treatment for Vocal Cord Dysfunction in Female Athletes: An Outcome Study

A Treatment for Vocal Cord Dysfunction in Female Athletes: An Outcome Study

Modulation of the contractile responses of guinea pig isolated tracheal rings after chronic intermittent hypobaric hypoxia with and without cold exposure

Scuba Diving After Extensive Head and Neck Reconstructive Surgery

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