Dysfunction of phrenic pacemakers induced by metallic rescue blankets |
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| Authors: | Boissel N Väänänen L Michoux J Straus C Fartoukh M Derenne J P Talonen P P Similowski T |
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| Affiliation: | Service de Pneumologic et Réanimation, Groupe Hospitalier Pitié-Salpêtrière, Assistance Publique-Hôpitaux de Paris, Paris, France;, Atrotech Ltd, Tampere, Finland;, EuroMC, Morainvilliers;, Service Central d'Explorations Fonctionnelles Respiratoires Groupe Hospitalier Pitié-Salpêtrière, Assistance Publique-Hôpitaux de Paris, Paris;, UniversitéParis VI Pierre et Marie-Curie, Paris, France |
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| Abstract: | BOISSEL, N., et al. : Dysfunction of Phrenic Pacemakers Induced by Metallic Rescue Blankets. Phrenic pacing can restore diaphragmatic contractions in patients with central respiratory paralysis. It relies on radiofrequency transmission of energy from an external unit to implanted receivers through circular coil antennas. The case of a patient is reported in whom severe hypoventilation occurred following the use of a metallic rescue blanket. The phenomenon was confirmed in two subsequent patients and during benchmark tests. Possible mechanisms include reflection and diffusion of high frequency waves by a Faradaylike effect. Patients with implanted devices relying on telemetric control or powering, and their care givers, should be warned against the use of metallic rescue sheets. |
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| Keywords: | phrenic nerve diaphragm artificial stimulation hypothermia prevention adverse effects |
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