The aim of this research would be to determine the efficacy and effects of preoxygenation when performed by the patient (mask held by the patient). This is the concept of "self-preoxygenation".
Pre-oxygenation is a fundamental element of the induction sequence in anesthesia, described and recommended since 1955. Numerous studies have examined and compared the various techniques for implementing this procedure in terms of duration, objectives, equipment, patient characteristics and conditions. None of them specifies who should hold the mask when carrying out this recommendation. In everyday practice, patients are often asked to hold the mask themselves. A preliminary survey showed that 86% of patients are offered this option. The professionals questioned cited relational reasons (83%) above all, but also organizational reasons (43%).
Study Type
OBSERVATIONAL
Enrollment
110
Management is not modified. Routine monitoring (ECG, BP, SpO2). As in care, the patient takes the mask and the respirator is started, delivering an inspired oxygen fraction of 100% (FiO2=1). Monitoring of : inspired fraction of oxygen, expired fraction of oxygen and end-tidal fraction of carbon dioxide. The ventilator also provides the respiratory rate and tidal volume carried out by the patient. The fresh gas flow is set by default and will be adjusted to 12l/min for patient comfort.After less than a minute, a normal capnia curve and the presence of an FeO2 value appear. Here, time is standardized to 1 min. In the absence of one of these elements, the caregiver always takes control of preoxygenation.Timer is started, it is T0 min. At T 3min, collection of values and decision-making : * objectives achieved : end of this sequence. * objectives not achieved, the caregiver takes control again for an additional 2 minutes in order to seek to achieve an FeO2\>90%.
APAIS scale
Anesthesia-intensive care department - Cochin - Port-Royal hospital - APHP
Paris, Île-de-France Region, France
FeO2>90%
Percentage of patients achieving a FeO2\>90% in 3 min at 12L/min fresh gas flow on 100% oxygen. To Evaluate the efficacity of the self-preoxygenation Assessing the effectiveness of auto-preoxygenation
Time frame: 3 minuts after the beginning of auto-preoxygenation - Day 1
APAIS anxiety score
Percentage of patients with a total APAIS anxiety score greater than 10/20 in women, 12/20 in men on arrival in the operating room
Time frame: At arrival in the Day Surgery Unit - Day 1
Visual analog anxiety scale (VAS-A) score
Percentage of patients with a decrease in the visual analog anxiety scale score (VAS-A) between arrival and discharge in the Day Surgery Unit. Assessing the effect of self-preoxygenation on preoperative anxiety
Time frame: At arrival in the Day Surgery Unit - Day 1
Visual analog anxiety scale (VAS-A) score
Percentage of patients with a decrease in the visual analog anxiety scale score (VAS-A) between arrival and discharge in the Day Surgery Unit. Assessing the effect of self-preoxygenation on preoperative anxiety
Time frame: At discharge from the Day Surgery Unit - Day 1
Visual analog comfort scale (VAS-C) score
Percentage of patients having obtained a visual analog comfort scale (VAS-C) score greater than 5 out of 10 upon discharge from the Day Surgery Unit. Assessing the effect of self-preoxygenation on comfort
Time frame: At discharge from the Day Surgery Unit - Day 1
This platform is for informational purposes only and does not constitute medical advice. Always consult a qualified healthcare professional.
Visual analog anxiety scale (VAS-A)
Visual analog comfort scale (VAS-C)