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Clinical Trial Details — Status: Recruiting

Administrative data

NCT number NCT06127173
Other study ID # D 343
Secondary ID
Status Recruiting
Phase N/A
First received
Last updated
Start date October 10, 2023
Est. completion date December 1, 2024

Study information

Verified date November 2023
Source Kasr El Aini Hospital
Contact Khaled Sarhan, MD
Phone +201020067816
Email khaled.sarhan@kasralainy.edu.eg
Is FDA regulated No
Health authority
Study type Interventional

Clinical Trial Summary

The aim of our study is first to assess the effect of different PEEP levels on gastric volume using ultrasonography during induction of general anesthesia in children undergoing elective surgery


Description:

Patients will be randomized into three groups: - Group (ZEEP) with PEEP level 0 cmH2O. - Group (PEEP 3) with PEEP level 3 cmH2O. - Group (PEEP 5) with PEEP level 5 cmH2O. The principal investigator will create a computer-generated random table for randomization and allocation which will be numbered in sequence and will be sealed in envelopes. An attending anesthesiologist will unfold the envelopes 10min before starting the procedure. The parents and a sonographer will be blinded to patient group allocation. The attending anesthesiologist will not be blinded; however, the attending anesthesiologist will not participate in the ultrasonography or data analysis. Anesthetic technique: All children will undergo routine preoperative investigations: Complete blood count and coagulation profile. First, children will enter the recovery room for examination as regards the fulfillment of inclusion criteria to be in the study or to be excluded from the study. Second, the children will be included in the study will be premedicated using midazolam 0.5 mg/kg IM and IM atropine 0.2 mg /kg. Then a baseline antral area for each child lying supine will be measured by a single anesthesiologist using GE, LOGIC-e Ultrasound device with a 4-8 MHz transducer. The gastric antrum will be obtained in the sagittal or parasagittal plane between the left lobe of the liver and the pancreas, at the level of the aorta or inferior vena cava. The transducer will be tilted and rotated perpendicular to the long axis of the antrum, after having the longitudinal (D1) and anteroposterior (D2) diameters of the gastric antrum, the cross sectional areal, (CSA) will be calculated as follows: CSA = D1x D2 x p/4 Gastric volume will be obtained by a formula based on a study by perlas.15 Stomach volume (mL) = (27 + 14.6 CSA (cm2)) - (1.28*age (years)). After that, the lungs will be divided into three regions: anterior, lateral and posterior, using the anterior and posterior axillary lines as boundaries. The ultrasound transducer will be placed perpendicular or parallel to the rib cage, and each region of the lung will be scanned bilaterally. The ultrasound probe will be first placed perpendicular to the rib cage to look for pulmonary atelectasis, and then the ultrasound probe will be placed parallel to the rib cage to take images at the most obvious point of pulmornary atelectasis. The scoring criteria will be Pulmonary consolidation score (zero- no consolidation; 1-minimal parietal consolidation; 2-small consolidation; 3-large consolidation). Pulmonary atelectasis will be defined as a pulmonary consolidation score ≥2 in any region. Upon arrival to the operation room, standard monitors (5-lead electrocardiogram, pulse oximetry, noninvasive blood pressure monitoring, capnography) will be applied and continued all over the operation. Intravenous cannula will be introduced after induction of anesthesia by inhalational induction with a facemask using sevoflurane 8% and oxygen 50% for all children. Then, all children will have 2-3mg /Kg of propofol, 1mcg/Kg of fentanyl and 0.4-0.6 mg /kg of rocronium. Face mask ventilation with pressure controlled ventilation using PIP 12cmH2O 16, a PEEP level according to randomization done before will be applied for 90s to all children and respiratory rate (RR) will be adjusted according to the rule, RR=24-age/2. Then, an appropriate sized endotracheal tube will be introduced. Anesthesia will be maintained using Isoflorane 1% MAC with the same parameters of mechanical ventilation during induction of anesthesia. Immediately after intubation, another measurement for gastric volume will be taken ultrasound guided as described before. Ringer Lactate solution will be infused according to the rule 4-2-1 till the end of surgery. Before awakening of the patient another measurement for pulmonary consolidation score will be taken. Then, they will be awakened as usual at the end of surgery and transferred to post anesthesia care unit (PACU).


Recruitment information / eligibility

Status Recruiting
Enrollment 90
Est. completion date December 1, 2024
Est. primary completion date December 1, 2024
Accepts healthy volunteers No
Gender All
Age group 1 Year to 12 Years
Eligibility Inclusion Criteria: Children aged1 to 12 years old American Society of Anesthesiologists (ASA) physical status I or II Children will be scheduled for elective surgery under general anesthesia. Exclusion Criteria: Parental refusal Children with increased risk of regurgitation Known respiratory diseases or uncorrected congenital heart disease

Study Design


Related Conditions & MeSH terms


Intervention

Other:
Positive End Expiratory Pressure PEEP
children will receive different levels of PEEP during induction of anesthesia

Locations

Country Name City State
Egypt Cairo university hospitals, kasralainy Cairo

Sponsors (2)

Lead Sponsor Collaborator
Kasr El Aini Hospital Fayoum University

Country where clinical trial is conducted

Egypt, 

Outcome

Type Measure Description Time frame Safety issue
Primary Gastric residual volume immediately after intubation ultrasound guided measurement of gastric residual volume immediately after intubation 15 minutes
Secondary Lung Ultrasound Score Each lung will be divided into 3 areas. For each area, a score of 0 to 3 has been assigned. Scores as follows, for any lung area: 0 indicates A-pattern (defined by the presence of only A-lines); 1, B-pattern (defined as the presence of 3 B-lines, well-spaced); 2, severe B-pattern (defined as the presence of crowded and coalescent B lines with or without consolidations limited to subpleural space); and 3, extended consolidation. 15 minutes
Secondary Qualitative gastric antrum score Grade 0 antrum: is defined as the absence of fluid content in both supine and RLD positions.
Grade 1 antrum: If fluid content is observed only in the RLD position, but not in the supine position.
Grade 2 antrum: If fluid is observed in both supine and RLD.
15 minutes
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