The Effect of Mask Combined With High Flow Oxygen on Preoxygenation During Induction of General Anesthesia in Obese Patients

Zhengzhou University

Status: Enrolling

Conditions: Obese

Treatments: Device: apnoeic

Study type: Interventional

Funder types: Other

Identifiers

NCT06562660

HenanPPH-wanghuabing

Details and patient eligibility

About

There is a risk of airway-related incidents during anaesthesia associated with obesity. High-flow nasal oxygen is advocated for perioperative preoxygenation in obese patients to reduce airway adverse reactions. However, there have been no reports on whether smoking behaviors have an impact on obese men's Apnoeic oxygenation with high-flow nasal.This study compared the effects of smoking on the duration of safe apnoea times in obese males.

Full description

All patients were were divided into two groups based on smoking status: smokers(S groups), and never smokers(NS groups). Those in the smoking group were current smokers, while those in the nonsmoking group had never smoked. Both groups of patients were induced with intravenous anesthesia and received 5 minutes of high flow nasal oxygen (60 L min) prior to induction.After induction of anaesthesia, the patients were apnoeic until peripheral oxygen saturation decreased to 95 %.

Enrollment: 60 estimated patients

Sex: Male

Ages: 18 to 80 years old

Volunteers: Accepts Healthy Volunteers

Inclusion and exclusion criteria

Inclusion Criteria:

1. Participants ranged in age from 18 to 80 with BMI≥30 kg/m2.
2. Participants are male obese patients undergoing elective non-thoracic surgery

Exclusion Criteria :

1. patients were kept awake during the intubation due to cervical spine pathology.
2. Patients with unstable hemodynamics.
3. Patients with airway inflammatory diseases, including asthma, chronic obstructive pulmonary disease (COPD), lung cancer, pulmonary fibrosis and cystic fibrosis.
4. Patients with upper respiratory infection and nasal blockage.
5. Patients with Hypersensitivity to the drug.

Trial design

Primary purpose: Prevention

Allocation: Randomized

Interventional model: Parallel Assignment

Masking: Quadruple Blind

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60 participants in 2 patient groups

Smoking group

Experimental group

Description:

In the Smoking group, the HFNC was performed after the patient lost spontaneous breathing until the end-tidal oxygen concentration reached 95 %. record the patient 's safe apnea time.

Treatment:

Device: apnoeic

never smoking

No Intervention group

Description:

no intervention