Clinical trial · Interventional
Effect of PEEP on Arterial Oxygen Partial Pressure in Elderly Patients With Lithotomy Position Using LMA Supreme™
Effect of Positive End-expiratory Pressure on Arterial Oxygen Partial Pressure in Elderly Patients Undergoing Urologic Surgery Using LMA Supreme™ in Lithotomy Position
NCT03390127CI-TRIAL-00032392completedN/AClinicalTrials.gov clinicaltrialsProvenance
- Source
- ClinicalTrials.gov
- Retrieved
- Sep 8, 2026
- Layer
- normalized (units and labels harmonized; values unchanged)
- Run
- ING-CLINICALTRIALS-20260908-000001
Summary
Brief summary (as posted)
The purpose of the present study is to compare the effect of PEEP on arterial oxygen partial pressure in elderly patients undergoing urologic surgery using LMA supreme™ in a lithotomy position.
Conditions
Conditions (2)
Free-text conditions as registered, with the CancerIndex entity they were reconciled to and the match type.
| Condition (as posted) | Mapped entity | Match | Confidence |
|---|---|---|---|
| Prostatic Neoplasms | Prostate Neoplasm | ALIAS | 0.90 |
| Urinary Bladder Neoplasms | Bladder Neoplasm | ALIAS | 0.90 |
Interventions
Interventions (1)
| Intervention | Type | Mapped drug | Match |
|---|---|---|---|
| PEEP | Other | — | UNRESOLVED |
Design
Arms and outcomes
Arms (2)
- type
- EXPERIMENTAL
- label
- Group P
- description
- After LMA Supreme™ insertion, PEEP of 7 cmH2O would apply during general anesthesia with mechanical ventilation.
- interventionNames
- Other: PEEP
- type
- NO_INTERVENTION
- label
- Group Z
- description
- After LMA Supreme™ insertion, PEEP would not apply during general anesthesia with mechanical ventilation.
Primary outcomes (1)
- measure
- The difference of arterial oxygen partial pressure (PaO2) between group P and group Z
- timeFrame
- 1 hour after LMA insertion
- description
- The difference of arterial oxygen partial pressure (PaO2) between group P and group Z 1 hour after LMA insertion by arterial blood gas analysis
Eligibility
Eligibility (as posted)
- Sex
- All
- Minimum age
- 65 Years
- Maximum age
- 79 Years
Show eligibility criteria text
Inclusion Criteria: * Patients undergoing urologic surgery with lithotomy position under general anesthesia * Elderly patients (65 ≤ Age \< 80) * American Society of Anesthesiologists (ASA) physical status: 1-3 * Patients who voluntarily agreed to participate in this clinical study Exclusion Criteria: * Heart failure (ejection fraction ≤ 40%) * Hemodynamic instability during perioperative period * Lung diseases (chronic obstructive pulmonary disease, asthma, bullae, pleural effusion) * Obesity (BMI ≥ 30 kg/m2) * Neck or upper respiratory tract pathologies * An increased risk of pulmonary aspiration * Anticipation of the difficult laryngeal mask fixation due to poor dentition
References
Publications (0)
Data not yet available
No reference posted for this study.