Ultrasound of the Inferior Vena Cava in the Prevention of Hypotension After Induction of General Anesthesia
Trial statusNot yet recruiting
Trial phaseNot listed
Trial typeObservational
Biological sexAll
Age65-85
SponsorZhuan Zhang
About this trial
Based on the preoperative ultrasound detection of various parametric indicators of the inferior vena cava cross-section, including the ratio of the inferior vena cava's long and short axes, cross-sectional area and circumference during two-dimensional and three-dimensional imaging, as well as the changes in respiratory variability of each parameter, we explored the predictive value of IVC ultrasound indicator parameters on hypotension after induction of general anesthesia in elderly patients undergoing elective non-cardiac surgery, screened the sensitive indicators, and calculated the cut-off values.
Eligibility criteria
This trial does not accept healthy volunteersQualifiers
Elderly patients undergoing elective non-cardiac surgery under general anesthesia;
Age 65-85 years old;
Body mass index (BMI) 18-28 kg/m2;
American society of anesthesiologists (ASA) class I-III.
Disqualifiers
Patient refusal or lack of cooperation;
Inability to communicate properly;
Severe sinus bradycardia, pacemaker implantation, atrioventricular block, and atrial fibrillation;
Presence of severe hepatic and renal function abnormalities;
Trial population
Elderly patients undergoing elective non-cardiac surgery under general anesthesia
Trial design
Design model
Cohort
Time perspective
Prospective
Treatments tested in this trial
Multidimensional ultrasound of the inferior vena cava
Diagnostic testCross-sectional parameters of the inferior vena cava include two-dimensional longitudinal diameter, cross-sectional length and short diameter, circumference, and cross-sectional area, as well as cross-sectional length and short diameter, circumference, and cross-sectional area in three-dimensional imaging
Treatment groups
100 Participants
are divided into 1 treatment groupGroup A: Elderly patients undergoing elective noncardiac surgery under general anesthesia1 intervention
Trial outcomes
Primary outcomes
1
Changes in the level of Mean Arterial Pressure
The outcome above should be measured at the time before induction, 1 min after induction, 2 min after induction, 3 min after induction, 4 min after induction, 5 min after induction,10 min after induction
Time frame
Baseline (before induction), 10 min after induction2
Changes in the level of Systolic Blood Pressure
The outcome above should be measured at the time before induction, 1 min after induction, 2 min after induction, 3 min after induction, 4 min after induction, 5 min after induction,10 min after induction
Time frame
Baseline (before induction), 10 min after induction3
Multidimensional ultrasound of the inferior vena cava
The outcome above should be measured at the time before induction
Time frame
Baseline (before induction)Secondary outcomes
1
Changes in the level of Heart Rate
The outcome above should be measured at the time before induction, 1 min after induction, 2 min after induction, 3 min after induction, 4 min after induction, 5 min after induction,10 min after induction
Time frame
Baseline (before induction), 10 min after induction2
Changes in the level of Diastolic Blood Pressure
The outcome above should be measured at the time before induction, 1 min after induction, 2 min after induction, 3 min after induction, 4 min after induction, 5 min after induction,10 min after induction
Time frame
Baseline (before induction), 10 min after inductionSponsors and contacts
Click on the lead sponsor to view all of their trials.
Zhuan Zhang
Lead sponsor
Yangzhou University
Sponsor institution
Source ClinicalTrials.gov
This trial is not recruiting at the moment. You can still explore other options: