To assess the role of Carotid artery ultrasound imaging, a major artery of neck, in prediction of post spinal anaesthesia hypotension in spontaneously breathing patients.
Not Applicable
- Conditions
- Health Condition 1: 4- Measurement and Monitoring
- Registration Number
- CTRI/2019/05/019073
- Lead Sponsor
- Head of the Department Anaesthesiology pain medicine critical care
- Brief Summary
Not available
- Detailed Description
Not available
Recruitment & Eligibility
- Status
- ot Yet Recruiting
- Sex
- Not specified
- Target Recruitment
- 0
Inclusion Criteria
1.Patients of ASA physical status of 1 and 2 posted for elective surgeries under spinal anaesthesia
Exclusion Criteria
1.patient refusal
2.uncontrolled hypertension
3.h/o pulmonary artery hypertension peripheral vascular disease and valvular heart disease
4.BMI less than 15kg/m2 and BMI more than 35kg/m2
5.h/o chronic alcoholism
6. coagulopathy
7. presence of carotid artery stenosis more than 50%
8.local site infection
9.presence of ascitis
10.COPD
11.left ventricular failure
12.common carotid artery plaque
Study & Design
- Study Type
- Observational
- Study Design
- Not specified
- Primary Outcome Measures
Name Time Method 1. To assess the role of carotid artery corrected flow time(FTc) in prediction pf post spinal anaesthesia hypotension in spontaneously breathing patientsTimepoint: Cycle time will be calculated by measuring the interval between heart beats at the beginning of the doppler flow upstroke <br/ ><br>Flow time will be calculated from the beginning og the systolic upstroke to the dicrotic notch <br/ ><br>FTc will be calculated by dividing the flow time by the square root of cycle time.
- Secondary Outcome Measures
Name Time Method 1.To assess the role of carotid artery velocity time integral and carotid artery peak velocity variation(CAPVV)in prediction of post spinal anaesthesia hypotension in spontaneously breathing patientsTimepoint: 1.Velocity time integral is a parameter used to calculate the blood flow across a cross sectional area <br/ ><br>2.Carotid artery peak velocity variation (CAPVV) will be measured as difference between the maximum and minimum values of peak velocity over a single respiratory cycle dividing it by average of that