NCT06562660

Brief Summary

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.

Trial Health

57
Monitor

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Trial has exceeded expected completion date
Enrollment
60

participants targeted

Target at P25-P50 for not_applicable

Timeline
Completed

Started May 2024

Shorter than P25 for not_applicable

Geographic Reach
1 country

1 active site

Status
recruiting

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Start

First participant enrolled

May 1, 2024

Completed
3 months until next milestone

First Submitted

Initial submission to the registry

July 28, 2024

Completed
23 days until next milestone

First Posted

Study publicly available on registry

August 20, 2024

Completed
6 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

March 1, 2025

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

March 1, 2025

Completed
Last Updated

September 20, 2024

Status Verified

August 1, 2024

Enrollment Period

10 months

First QC Date

July 28, 2024

Last Update Submit

September 18, 2024

Conditions

Keywords

High-Flow Nasal OxygenObese MenSmoking

Outcome Measures

Primary Outcomes (1)

  • the safe apnoea times

    Investigators will record the time of oxygen saturation drop to 95 % during intubation.

    5-minute

Secondary Outcomes (1)

  • the Pao2 levels

    5-minute

Study Arms (2)

Smoking group

EXPERIMENTAL

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.

Device: apnoeic

never smoking

NO INTERVENTION

no intervention

Interventions

apnoeicDEVICE

In group S, High-Flow Nasal Oxygen was performed after the patient lost spontaneous breathing until the end-expiratory oxygen concentration reached 95 %.

Smoking group

Eligibility Criteria

Age18 Years - 80 Years
Sexmale(Gender-based eligibility)
Gender Eligibility DetailsMale
Healthy VolunteersYes
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

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

You may not qualify if:

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

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Wanghuabing

Zhengzhou, China

RECRUITING

MeSH Terms

Conditions

ObesitySmoking

Condition Hierarchy (Ancestors)

OverweightOvernutritionNutrition DisordersNutritional and Metabolic DiseasesBody WeightSigns and SymptomsPathological Conditions, Signs and SymptomsBehavior

Study Officials

  • jiaqiang zhang

    Chief physician

    STUDY DIRECTOR

Central Study Contacts

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
QUADRUPLE
Who Masked
PARTICIPANT, CARE PROVIDER, INVESTIGATOR, OUTCOMES ASSESSOR
Masking Details
A total of 60 male obese patients undergoing elective non-thoracic surgery were divided into two groups (n=30) based on smoking status: smokers(S groups), and never smokers(NS groups). Those in the smoking group were current or past smokers, while those in the nonsmoking group had never smoked.
Purpose
PREVENTION
Intervention Model
PARALLEL
Model Details: A total of 60 male obese patients undergoing elective non-thoracic surgery were divided into two groups (n=30) based on smoking status: smokers(S groups), and never smokers(NS groups). Those in the smoking group were current or past smokers, while those in the nonsmoking group had never smoked.
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

July 28, 2024

First Posted

August 20, 2024

Study Start

May 1, 2024

Primary Completion

March 1, 2025

Study Completion

March 1, 2025

Last Updated

September 20, 2024

Record last verified: 2024-08

Data Sharing

IPD Sharing
Will not share

Locations