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Safe Use of CPAP and PEEP During Induction of General Anesthesia

Not Applicable
Completed
Conditions
General Anesthesia
Registration Number
NCT04271683
Lead Sponsor
Region Västmanland
Brief Summary

The study compares the safety of using pressure controlled ventilation with a positive end-expiratory pressure (PEEP) during induction of general anaesthesia immediately after apnoea to a standard method starting ventilation manually without PEEP immediately after apnoea.

Detailed Description

Using a continuous positive pressure (CPAP) during preoxygenation, followed by pressure controlled ventilation with PEEP after apnoea during induction of general anesthesia, might offer several benefits but safety issues needs more investigation. This study compares the safety of using pressure controlled with PEEP during induction of general anesthesia immediately after apnoea to a standard method starting ventilation manually without PEEP immediately after apnoea.

Recruitment & Eligibility

Status
COMPLETED
Sex
All
Target Recruitment
70
Inclusion Criteria
  • Normal or overweight patients scheduled for day case surgery in general anesthesia.
  • American Society of Anesthesiologists functional class I-III.
  • Body Mass Index 18.5-30.
Exclusion Criteria
  • Increased risk of regurgitation of gastric content.
  • Symptomatic asthma, COPD or heart failure.
  • Peripheral oxygen saturation (SpO2) breathing air <94 %
  • Anticipated difficult airway.
  • Beard.
  • Anatomical features making it difficult to keep a tight seal during maskventilation.

Study & Design

Study Type
INTERVENTIONAL
Study Design
PARALLEL
Primary Outcome Measures
NameTimeMethod
Number of breaths until return of CO2.2 minutes

When starting ventilation after apnea the number of breaths given until the return of CO2 is at least 1.3 kPa at a respiratory frequency of 10 per minute.

Secondary Outcome Measures
NameTimeMethod

Trial Locations

Locations (1)

Lennart Edmark

🇸🇪

Västerås, Sweden

Lennart Edmark
🇸🇪Västerås, Sweden

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