Caval-aorta Index and Perfusion Index on Predict Hypotension After Spinal Anaesthesia in Elderly

NCT06479512 | Completed

• 1 other identifier: spinal-induced hypotension
• Study Type: observational
• Target: 200
• Locations: 1 country
• Sites: 1

Brief Summary

The aim of our study was to predict hypotension by using caval aorta index and perfusion index in elderly patients who may develop hypotension after spinal anesthesia.

Conditions

Anesthesia, Spinal

Keywords

spinal anesthesia; caval aorta index; perfusion index; orthopedic surgery; elderly patients

Outcome Measures

Primary Outcomes (1)

• caval aorta index for predicting hypotension in the elderly

  to determine the threshold value for the caval aorta index in determining hypotension using logistic regression analysis

  1 hour

Secondary Outcomes (12)

• perfusion index for predicting hypotension in the elderly

  1 hour

• inferior vena cava diameter for predicting hypotension in the elderly

  1 hour

• abdominal aort diameter for predicting hypotension in the elderly

  1 hour

• systolic blood pressure

  1 hour

• diastolic blood pressure

  1 hour

Study Arms (2)

patients with spinal induced hypotension

patients with hypotension after spinal anesthesia (SBP less than 90 mmHg, a decrease in SBP by more than 30% from the preoperative baseline value, or an MAP below 60 mmHg)

Device: ultrasonography to measure the index of the caval aorta and non-invasive pulse oximetry for perfusion index

patients without spinal induced hypotension

patients without spinal induced hypotension

Device: ultrasonography to measure the index of the caval aorta and non-invasive pulse oximetry for perfusion index

Interventions

ultrasonography to measure the index of the caval aorta and non-invasive pulse oximetry for perfusion index DEVICE

Inferior vena cava and aortic diameter measurements will be made by ultrasonography and perfusion index determination using non-invasive pulse oximetry

patients with spinal induced hypotension; patients without spinal induced hypotension

Eligibility Criteria

• Age: 60 Years+
• Sex: all
• Healthy Volunteers: Yes
• Age Groups: Adult (18-64), Older Adult (65+)
• Sampling Method: Probability Sample

Study Population

patients over 60 years of age who will undergo elective lower extremity surgery in supine position admitted to ankara city hospital

You may qualify if:

• American Society of Anesthesiology(ASA) I-II-III score
• Patients over 60 years
• Elective surgeries
• Surgeries in supine position

You may not qualify if:

• Patient refusal to participate in the study
• The patient will undergo emergency surgery
• Contraindication to spinal anaesthesia
• Planning unilateral spinal anaesthesia
• Failure of spinal anaesthesia
• Body mass index above 35kg/m2
• Presence of preoperative hypotension (SBP\<90mmHg or MAP\<60mmHg)
• The patient has valvular disease and arrhythmia impairing haemodynamics
• Presence of neuropsychiatric disorders that make communication difficult
• Presence of abdominal hernia

Sponsors & Collaborators

• Ankara City Hospital Bilkent: lead

Study Sites (1)

Ankara Bilkent City Hospital

Ankara, Ankara, Çankaya, Turkey, 06800, 06800, Turkey (Türkiye)

Location

MeSH Terms

Interventions

Perfusion Index

Intervention Hierarchy (Ancestors)

Diagnostic Techniques, Cardiovascular; Diagnostic Techniques and Procedures; Diagnosis

Study Design

• Study Type: observational
• Observational Model: OTHER
• Time Perspective: PROSPECTIVE
• Sponsor Type: OTHER
• Responsible Party: PRINCIPAL INVESTIGATOR
• PI Title: anesthesiology and reanimation associate professor

Study Record Dates

• First Submitted: June 24, 2024
• First Posted: June 28, 2024
• Study Start: July 1, 2024
• Primary Completion: April 15, 2025
• Study Completion: May 25, 2025
• Last Updated: December 26, 2025

Record last verified: 2025-12

Data Sharing

• IPD Sharing: Will not share

Locations

TU (1)