Pressure support ventilation during general anaesthesia

The effects of pressure support ventilation on emergence time and ventilatory function in comparison to volume controlled ventilation and spontaneous breathing: a randomised study

Status

Active, not recruiting

Phases

Unknown

Study type

Interventional

Source

ISRCTN

Registry ID

ISRCTN17382426

Enrollment

Registered

2009-11-23

Start date

2005-01-01

Completion date

Unknown

Last updated

2015-01-13

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Mechanical ventilation Surgery

Interventions

SB-group: patients underwent SB throughout the ventilator circuit CMV-group: patients underwent CMV (expiratory tidal volume: VTe of 8 mL/kg, a respiratory rate (RR) of 10 breaths/min and an inspirato

Eligibility

Sex/Gender

All

Inclusion criteria

Inclusion criteria: 1. Patients aged 18 - 75 years, either sex 2. American Society of Anaesthesiologists (ASA) grade I - II 3. Scheduled for elective knee arthroscopic surgery under total intravenous anaesthetic (TIVA) with a LMA and mechanical ventilation

Exclusion criteria

Exclusion criteria: 1. Morbidly obese patients (body mass index [BMI] greater than 35 kg/m^2) 2. Chronic obstructive pulmonary disease (COPD) patients 3. Asthmatic patients 4. Less than 18 years old and more than 75 years old

Design outcomes

Primary

Measure	Time frame
1. LMA removal time, determined by repeatedly (every minute) questioning the patient 2. Emergence time, defined as the time to obtain a 10 point score on a five questions test	—

Secondary

Measure	Time frame
1. Propofol consumption 2. Ventilatory function 3. Adverse effects	—

Countries

France

Outcome results

None listed

Source: ISRCTN (via WHO ICTRP) · Data processed: Mar 6, 2026