An observational study in Surgery, sponsored by Yonsei University. Completed at 1 site in Korea, Republic of. Open to participants aged 6 Months to 6 Years. Per ClinicalTrials.gov, last updated 2019-05-06.
Sponsored by Yonsei University · Observational
Pediatric patients between 6months and 6years old will be included. They are scheduled for elective general or urologic surgery at a single tertiary medical center. Before the operation, the researcher interviews the parents of the pediatric patients to check whether they have the upper respiratory tract infection and asks them to fill out a questionnaire about the severity of their symptoms. The researcher will get the symptom score of the upper respiratory tract infection in the questionnaire. The degree of anesthesia induced atelectasis is measured using lung ultrasound. Pulmonary ultrasound is performed after endotracheal intubation and at the end of the operation dividing the patient's thorax into 12 regions. The investigator grades the degree of atelectasis at each region form 0 to 3 points. After the end of the operation, check whether the respiratory adverse effects occurred during emergence and recovery at the post anesthesia care unit.
Pediatric patients between 6months and 6years old scheduled for elective general or urologic surgery at a single thetiary medical center.
Exclusion Criteria:
Patients without upper respiratory tract infection symptoms
Other: questionnaire about the severity of their symptoms of upper respiratory tract infection
Patients with upper respiratory tract infection symptoms
Other: questionnaire about the severity of their symptoms of upper respiratory tract infection
Before the operation, the researcher interviews the parents of the pediatric patients to check whether they have the upper respiratory tract infection and asks them to fill out a questionnaire about the severity of their symptoms. The questionnaire consists of 8 types of symptom about upper respiratory infections and each symptom was checked from 0 to 3 according to severity by their patients.
The degree of atelectasis due to general anesthesia using lung ultrasound
Anesthesia induced atelectasis is diagnosed when the ultrasound findings as B-line (appears hyperechoic lines perpendicular to the pleura) and consolidation(loss of pleural line and hypoechoic area) are identified. The chest is divided into 12 regions: three longitudinal lines (parasternal, anterior, and posterior axillary) and two axial lines (above the diaphragm, and 1cm above the nipples) in each hemithorax. The investigator grades the degree of atelectasis at each region form 0 to 3 points. The degree of juxtapleural consolidation was graded: (a0) no consolidation; (a1) minimal juxtapleural consolidation; (a2) small-sized consolidation(\<50%); and (a3) large-sized consolidation(\>50%). The degree of B-lines was divided into four grades: (b0) fewer than three isolated B-lines; (b1) multiple well-defined B-lines; (b2) multiple coalescent B-lines; and (b3) white lung.
Time frame: The investigator will measure the degree of atelectasis using lung ultrasound at 2 minutes after endotracheal intubation and at 5minutes the end of the operation.
Occurrence of respiratory adverse effects after the operation
After the end of the operation, check whether the respiratory adverse effects occurred when the patient is extubated and 10, 30 minutes after extubation at the post anesthesia care unit. Respiratory adverse effects are bronchospasm and laryngospasm. We analyze the symptom score of upper respiratory tract infection in pediatric patients who showed respiratory adverse events and suggest the cut off value of the score with high risk of respiratory adverse events by multivariate logistic regression.
Time frame: 10 minutes after extubation at the post anesthesia care unit
Occurrence of respiratory adverse effects after the operation
After the end of the operation, check whether the respiratory adverse effects occurred when the patient is extubated and 10, 30 minutes after extubation at the post anesthesia care unit. Respiratory adverse effects are bronchospasm and laryngospasm. We analyze the symptom score of upper respiratory tract infection in pediatric patients who showed respiratory adverse events and suggest the cut off value of the score with high risk of respiratory adverse events by multivariate logistic regression.
Time frame: 30 minutes after extubation at the post anesthesia care unit
Plan to share: No
This study is completed, as verified in May 2019. You cannot join it, but the record below documents what was studied.
Get an email when the registry record changes — status, dates, results — or when someone posts here.
Sign in to followQuestions and observations about this study, from anyone following it. Not medical advice, and not a channel to the study team — their contact details are on the registry record.
Sign in to join the discussion. Reading takes no account; posting does. You choose a display name, and a pseudonym is the default.
Nothing here yet. If you are running this trial, taking part in it, or weighing whether to, this is the place to say so.
Yonsei University