Normal Vascular Doppler Pattern of Abdominal Organ in Children
Not Applicable
- Conditions
- Normal Children
- Interventions
- Diagnostic Test: abdominal Doppler
- Registration Number
- NCT05290168
- Lead Sponsor
- Seoul National University Hospital
- Brief Summary
The following ultrasonic findings are obtained at both time points before and after induction of anesthesia (T1) and after induction (T2) in normal children . Positive pressure ventilation (Tidal volume of 6-8 ml/kg and a positive exhalation pressure of 5 cmH2O) is applied after anesthetic induction.
1. Inferior vena cava diameter and distensibility
2. Hepatic vein Doppler
3. Portal vein Doppler
4. Splenic artery and vein Doppler
5. Renal artery and vein Doppler Based on this, the reference values for Doppler findings before and after anesthesia in normal children are obtained.
- Detailed Description
Not available
Recruitment & Eligibility
- Status
- UNKNOWN
- Sex
- All
- Target Recruitment
- 100
Inclusion Criteria
- Children undergoing simple surgery
Exclusion Criteria
- thoracic/abdominal surgery
- surgery for congenital heart disease
- disease involving liver, kidney, spleen
- vascular disease
Study & Design
- Study Type
- INTERVENTIONAL
- Study Design
- SINGLE_GROUP
- Arm && Interventions
Group Intervention Description Normal children abdominal Doppler normal children undergoing simple surgery
- Primary Outcome Measures
Name Time Method inferior vena cava diameter (mm) during general anesthesia during positive pressure ventilation (within 5 - 60 minutes after anesthetic induction) portal vein flow velocity (cm/s) during self respiration just before anesthesia induction (about 5 minutes before anesthetic induction) portal vein flow velocity (cm/s) during general anesthesia during positive pressure ventilation (within 5 - 60 minutes after anesthetic induction) splenic vein flow velocity (cm/s) during self respiration just before anesthesia induction (about 5 minutes before anesthetic induction) inferior vena cava diameter (mm) during self respiration just before anesthesia induction (about 5 minutes before anesthetic induction) hepatic vein flow velocity (cm/s) during self respiration just before anesthesia induction (about 5 minutes before anesthetic induction) hepatic vein flow velocity (cm/s) during general anesthesia during positive pressure ventilation (within 5 - 60 minutes after anesthetic induction) renal artery/vein flow velocities (cm/s) during self respiration just before anesthesia induction (about 5 minutes before anesthetic induction) renal artery/vein flow velocities (cm/s) during general anesthesia during positive pressure ventilation (within 5 - 60 minutes after anesthetic induction)
- Secondary Outcome Measures
Name Time Method
Trial Locations
- Locations (1)
Jin-Tae Kim
🇰🇷Seoul, Korea, Republic of