Perioperative hypotension
Conditions
Interventions
Subclavicular group (SV group):The proximal part of the right middle clavicle was scanned vertically below the long axis of the subclavicular vein before surgery to obtain the optimal short-axis secti
Carotid group (CA group):Long axis view of the right common carotid artery was obtained at the lower margin of the thyroid cartilage before surgery, and color Doppler blood flow imaging was performed.
Sponsors
The 925th Hospital of PLA Joint Logistics Support Force
Eligibility
Sex/Gender
All
Age
18 Years to 70 Years
Inclusion criteria
Inclusion criteria: Age 18 to 70 years old, American Society of Anesthesiologists ASA grade I to II, strict fasting for 8h, intended to undergo elective surgery under general anesthesia.
Exclusion criteria
Exclusion criteria: Patients undergoing emergency surgery with BMI 35kg/m2, preoperative circulatory instability (systolic blood pressure 160mmHg), severe arrhythmia, more than moderate valvular heart disease, New York Heart Function Class II or above or ejection fraction < 50%, enlarged heart, acute exacerbation of COPD, Asthma attack, respiratory failure, pulmonary hypertension, peripheral vascular disease, moderate or above abnormal liver and kidney function, preoperative cervical vascular ultrasound abnormalities including plaque, stenosis and anatomic variation, history of right neck, clavicle surgery or trauma, inability to maintain supine position, mental illness or emotional, hearing, intellectual impairment, and other inability to cooperate, not willing to participate in this study.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Hypotension occurrence; | — |
Secondary
| Measure | Time frame |
|---|---|
| Heart rate;pulse oxygen saturation;Intraoperative infusion volume;vasoactive drug use;intraoperative blood loss;postoperative nausea and vomiting;postoperative cognitive function;postoperative infection;length of stay; | — |
Countries
China
Contacts
Public ContactWANG Mei
The 925th Hospital of PLA Joint Logistics Support Force
Outcome results
None listed