Perioperative hypotension
Conditions
Interventions
Observation group:None
Sponsors
The Second Affiliated Hospital of Zunyi Medical University
Eligibility
Sex/Gender
All
Age
18 Years to 80 Years
Inclusion criteria
Inclusion criteria: 1 Planned elective surgery for lower abdominal tumors; 2 18 <= Age <= 80 years old; 3 Gender is not limited; 4 ASA grades I-III; 5 BMI 18-28kg/m^2.
Exclusion criteria
Exclusion criteria: 1 Ultrasound examination of the internal jugular vein, inferior vena cava, and carotid artery suggests stenosis or malformation; 2 Preoperative anemia or mean arterial pressure<65mmHg; 3 Preoperative sustained blood pressure above 180/110mmHg; 4 Preoperative volume therapy; 5 Increased intra-abdominal pressure; 6 History of anesthesia drug allergies and contraindications.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Variability of internal jugular vein respiration;Inferior vena cava collapse index;Carotid artery corrected blood flow time;The degree of decrease in blood pressure; | — |
Secondary
| Measure | Time frame |
|---|---|
| systolic pressure;diastolic pressure;mean arterial pressure;heart rate;EEG bispectral index;Pulse oxygen saturation;age;height;body weight;gender; | — |
Countries
China
Contacts
Public ContactHongying He
The Second Affiliated Hospital of Zunyi Medical University
Outcome results
None listed