Predicting Post Spinal Anaesthesia induced hypotension in lower limb surgeries with the help of ultrasound and perfusion index measured through pulse oximeter

Not yet recruiting

Conditions: Other intraoperative and postprocedural complications and disorders of musculoskeletal system, not elsewhere classified,

Registration Number: CTRI/2023/07/055782

Lead Sponsor: DR RAM MANOHAR LOHIA INSTITUTE OF MEDICAL SCIENCES

Brief Summary: Sonographicdetermination of inferior vena cava collapsibility index (IVCCI) and IVC toaorta diameter index (IVC : Ao index) was introduced into clinical practice forassessment of intravascular volume in many studies and reported to be reliable,non-invasive and easy techniques for evaluating volume status, and can beobtained by practitioners with little experience in echocardiography. Perfusionindex (PI) is a novel vital parameter that estimates the pulsatility of bloodin the extremities, which depends upon the amount of red and infrared lightabsorption measured by a pulse oximeter. Perfusion index compares the pulsatileblood flow to non-pulsatile blood flow in the peripheral vessels. Perfusionindex is reciprocally related to the vascular tone. A lower PI denotes a higherperipheral vascular tone. Therefore, increased incidence of reduction in bloodpressure (BP) following SAB reflects the higher baseline PI.

Detailed Description: Not available

Recruitment & Eligibility

Status: Not Yet Recruiting

Sex: All

Target Recruitment: 66

Inclusion Criteria

Patients more than 18-65 years of age with American Society of Anesthesiologistsâ€™ (ASA) physical status 1 or 2 who will be schedule for elective surgery under spinal anaesthesia in the supine position.

Exclusion Criteria

1. BMI more than 30 kg/m2, 2) taking angiotensin converting enzyme inhibitors, 3) pregnant women, 4) emergency cases, 5) absolute or relative contraindications to spinal anaesthesia, 6) patients scheduled for unilateral spinal anaesthesia 7) failure to perform spinal anaesthesia.
1. patients with a baseline arterial SBP less than 90mmHg or mean arterial blood pressure (MBP) less than 70mmHg.

Study & Design

Study Type: Observational

Study Design: Not specified

Primary Outcome Measures

Name	Time	Method
To compare the predictive values of ultrasonographic inferior vena cava collapsibility index, caval aorta index & perfusion index as predictors for post spinal anaesthesia hypotension.	BASE LINE, EVERY 2 MIN TILL 30 MINUTES

Secondary Outcome Measures

Name	Time	Method
To compare the hemodynamic parameters blood pressure mean arterial pressure heart rate	post spinal anaesthesia patient is observed for a period of 30 min & non invasive blood pressure mean arterial blood presure and heart rate are taken every 2 min from giving spinal anaesthesia to 30 min post spinal anaesthesia.

Trial Locations

Locations (1): Dr. RML institute of medical sciences
🇮🇳
Lucknow, UTTAR PRADESH, India
Dr. RML institute of medical sciences
🇮🇳Lucknow, UTTAR PRADESH, India
Dr Virendra Kumar
Principal investigator
8176007232
virendrasankhwar@gmail.com