Effect of Positive End-expiratory Pressure on Gastic Residual Volume

The Effect of End-expiratory Positive Pressure on Gastric Residual Volume in Elective Pediatric Outpatient Surgery Where Laryngeal Mask is Applied

Status

Completed

Phases

Unknown

Study type

Observational

Source

ClinicalTrials.gov

Registry ID

NCT06426394

Enrollment

Registered

2024-05-23

Start date

2024-05-17

Completion date

2025-01-31

Last updated

2025-09-19

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

Conditions

Fasting Period, Pediatrics

Keywords

Gastric ultrasonography, gastric residual volume, pediatric outpatient surgery

Brief summary

This study was designed as a prospective observational study.

Detailed description

In this study, it was planned to evaluate the effect of positive end-expiratory pressure on gastric residual volume in patients who will undergo outpatient pediatric surgery with laryngeal mask application on the specified dates. Patients aged 1-11 years, ASA I-II and undergoing outpatient lower abdominal and genitourinary surgery were included in the study. Since the use of positive end-expiratory pressure varies in our clinic depending on the anesthesiologist preference, the effect of this application on gastric volume will also be evaluated primarily by recording images with gastric ultrasonography at certain perioperative time periods. Secondarily, the effect of this positive end-expiratory pressure on mechanical ventilator parameters and airway pressures will be evaluated.

Interventions

None listed

Study design

Observational model

COHORT

Time perspective

CROSS_SECTIONAL

Eligibility

Sex/Gender

ALL

Age

1 Years to 11 Years

Healthy volunteers

Yes

Inclusion criteria

* Pediatric patients who will undergo elective outpatient minor surgery (lower abdominal and urogenital) * 1-11 years old * American Society of Anesthesiology (ASA) classification 1-2 patient groups * Patients who are fully hungry and whose fasting period is appropriate for their age and diet.

Exclusion criteria

* Patients whose fasting period is not appropriate * Acute abdominal and emergency surgeries * ASA 3-4 patient group * Patients with diseases or medication use that will affect gastric emptying time * Previous nasogastric tube placement and re-operation • Patients with known difficult airway or failure to fit the laryngeal mask

Design outcomes

Primary

Measure	Time frame	Description
Gastric residual volume	preoperatively, intraoperatively after laryngeal mask placement, before laryngeal mask removal at the end of surgery	The primary purpose of this study is to measure gastric residual volume with peroperative gastric ultrasonography measurements. Gastric residual volume will be calculated according to gastric ultrasonography measurements.

Secondary

Measure	Time frame	Description
Airway pressures	intraoperative process	The secondary aim of this study was to evaluate the effect of positive end-expiratory pressures on airway pressures

Countries

Turkey (Türkiye)

Outcome results