The usefulness of plethysmography in predicting spinal anaesthesia-induced hypotension in elderly patients
Not Applicable
- Conditions
- Health Condition 1: M169- Osteoarthritis of hip, unspecifiedHealth Condition 2: M179- Osteoarthritis of knee, unspecified
- Registration Number
- CTRI/2024/05/066637
- Lead Sponsor
- Post Graduate Institute of Medical Education ResearchChandigarh
- Brief Summary
Not available
- Detailed Description
Not available
Recruitment & Eligibility
- Status
- Open to Recruitment
- Sex
- Not specified
- Target Recruitment
- 0
Inclusion Criteria
1.Patient undergoing spinal or spinal-epidural anaesthesia
2.ASA-PS I/II
3.Patients undergoing elective surgery
Exclusion Criteria
1.BMI more than 35 kg/m2
2.Pre-existing hypotension or shock
3.Any contraindication to spinal anaesthesia
4.Cardiac dysfunction (EFless than 40%, arrhythmias)
5.Known peripheral vascular disease/vasculitis
6.Patients with less than 15-sec breath holding time
•Failed spinal anaesthesia
Study & Design
- Study Type
- Observational
- Study Design
- Not specified
- Primary Outcome Measures
Name Time Method •To determine the predictive value of Pleth variability index (PVI) at the end of a 15-sec maximal inspiratory breath hold in the sitting position before spinal anaesthesia in predicting the occurrence of hypotension, defined as a fall in MAP by 20% from baseline or SBP less than 80 mm of Hg in elderly patients.Timepoint: Baseline and every 2 minutes for 10 minutes, followed by every 5 minutes till 30 minutes from spinal drug injection.
- Secondary Outcome Measures
Name Time Method 1. To determine the predictive value of change in PVI (baseline & after 15 sec breath hold) & occurrence of post-spinal hypotension in elderly patients. <br/ ><br>2. To determine the predictive value of baseline PI in the development of hypotensive response to spinal anaesthesia. <br/ ><br>3. To find the incidence of hypotension in the elderly population following spinal anaesthesia. <br/ ><br>4. Incidence of baseline hypothermia <br/ ><br>Timepoint: From induction of spinal anaesthesia to 24 hours after surgery