Skip to content

Use of pulse oximeter to predict hypotension during surgery

Pleth variability index as a predictor of hypotension following Spinal anaesthesia in infra umbilical surgeries - Nil

Status
Active, not recruiting
Phases
Unknown
Study type
Observational
Source
CTRI
Registry ID
CTRI/2025/06/089781
Enrollment
100
Registered
2025-06-27
Start date
Unknown
Completion date
Unknown
Last updated
2025-07-21

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Health Condition 1: K409- Unilateral inguinal hernia, without obstruction or gangrene

Interventions

Intervention1: Nil: Nil Intervention2: Nil: Nil Intervention3: Nil: Nil

Sponsors

Dr Haripriya
Lead Sponsor

Eligibility

Inclusion criteria

Inclusion criteria: Adult patients between 18 and 60 years undergoing infra-umbilical surgeries under spinal anaesthesia. ASA Physical Status 1 or 2. Consent to participate in the study. Patient undergoing infraumbilical surgeries requiring 15 mg of 0.5 per cent of Bupivacaine heavy in subarachnoid block

Exclusion criteria

Exclusion criteria: Patients with pre-existing hypotension or autonomic dysfunction. History of cardiovascular disease affecting hemodynamic stability. Use of beta-blockers or other medications affecting heart rate variability. Obesity, with a BMI greater than 35, it may affect PVI readings. Peripheral vascular disease. Poor peripheral perfusion affecting the pulse oximetry signal. Patient refusal to participate in the study

Design outcomes

Primary

MeasureTime frame
Determine the correlation between preoperative PVI values and the incidence of Spinal anaesthesia induced hypotension.Timepoint: One year

Secondary

MeasureTime frame
Establish a Pleth variability index (PVI) threshold for predicting hypotension. Assess the sensitivity & specificity of PVI as a predictor Timepoint: One year

Countries

India

Contacts

Public ContactHaripriya Ramachandran

MVJ Medical College

haripri20@gmail.com08970766376

Outcome results

None listed

Source: CTRI (via WHO ICTRP) · Data processed: Feb 4, 2026