De la part de René Amyot qui ne l'a pas envoyé au bon endroit... Cré René va :-)))
Fred -----Message d'origine----- De : RENE AMYOT [mailto:[EMAIL PROTECTED]] Envoyé : 7 décembre, 2002 07:16 À : SMU-L Objet : SMU-L: 15:2; 5:1 et autres questions Voici quelques paragraphes qui répondront à certaines de vos questions. Je n'ai pas traduit le texte afin de ne pas en changer le sens. " During cardiac arrest, the coronary perfusion pressure gradually rises with the performance of sequential compressions. This pressure is higher after 15 uninterrupted chest compressions than it is after 5 chest compressions. Therefore, after each pause for ventilation, several compressions must be performed before previous levels of brain and coronary perfusion are re-established. For these reasons, a ratio of 15 compressions to 2 ventilations is recommended for 1 or 2 rescuers (Class IIb *) until airways is secured. " (Guidelines 2000 for Cardiopulmonary Resuscitation and Emergency Cardiovascular Care / American Heart Association; page 41) " During cardiac arrest, properly performed chest compression can produce systolic arterial pressure peaks of 60 to 80 mm Hg, but diastolic blood pressure is low. Mean pressure in the carotid artery seldom exceeds 40 mmHg. Cardiac output resulting from chest compressions is probably only one fourth to one third of normal and decreases during the course of prolonged conventional CPR." (Guidelines 2000 for Cardiopulmonary Resuscitation and Emergency Cardiovascular Care / American Heart Association; page 43) "If the airway is protected (with tracheal tube, LMA, and CombitubeT), continue to deliver chest compression at a rate of at least 100 compressions per minute but without a compression pause for ventilations (asynchrous ventilations). Deliver 1 ventilation over 2 seconds asynchronously every 5 seconds for a minute rate of 12 ventilations." (ACLS Provider manual 2001 / American Heart Association; page 24) "Class IIb * recommendation: Two devices were approved for use as advanced airway devices: § Laryngeal mask airway (LMA) § Esophageal-tracheal CombitubeT (ACLS Provider manual 2001 / American Heart Association; page 32) " Studies of the clinical use of the CombitubeT confirm superior ventilation and oxygenation compared with the face mask and equivalent performance compared with the tracheal tube." (ACLS Provider manual / American Heart Association; 2001 page 33) *Classe I : Recommandé; Extrêmement utile Classe II a ::Acceptable; très utile Classe IIb : Acceptable; utile Classe Indéterminé : Acceptable; manque d'évidence Classe III : Peut être dangereux René Amyot Paramédic, Projet ALS Montréal [EMAIL PROTECTED] _____________________________________________________ _____________ Visiter le site d'urgences-santé à http://www.urgences-sante.qc.ca --- SMU-L Si vous avez plusieurs adresses email, vous pouvez les envoyer a Frederic Giroux a l'adresse [EMAIL PROTECTED] Un (ou des) alias pourront ainsi etre crees pour que vous puissiez envoyer des messages a travers la liste a partir de n'importe quel de vos alias. Autrement, les messages qui proviennent d'une adresse non-listee sont automatiquement rejetes. --- SMU-L La liste du prehospitalier est commanditee par Services Informatiques Giroux. Pour du materiel informatique de qualite, des prix competitifs et un service hors pair... (514) 572-8194.
