An observational study to predict post spinal anaesthesia fall in Blood pressure by measuring the inferior vena cava diameter preoperatively using ultrasound scan

Pre - operative ultrasonographic evaluation of Inferior vena caval collapsibility to predict post-spinal hypotension in patients undergoing lower abdominal surgeries : A prospective observational study - NIL

Status

Active, not recruiting

Phases

Phase 1Phase 2

Study type

Observational

Source

CTRI

Registry ID

CTRI/2025/02/081044

Enrollment

144

Registered

2025-02-20

Start date

Unknown

Completion date

Unknown

Last updated

2026-09-14

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

Conditions

Health Condition 1: B- Imaging

Interventions

Intervention1: Ultrasonographic evaluation of Inferior venacaval collapsibility: Preoperative evaluation of inferior venacaval diameter using sultry sound machine Control Intervention1: Hemodynamic mo

Eligibility

Inclusion criteria

Inclusion criteria: American Society of Anaesthesiology class 1&2 patients of either sex between the age of 18years-60years undergoing elective lower abdominal surgeries under spinal anaesthesia

Exclusion criteria

Exclusion criteria: Patient refusal, chronic systemic illness, pregnancy, contraindications to spinal anaesthesia like: bleeding diathesis, infection at local site, patients with spine deformities, hemodynamically unstable patients, hypovolemic shock

Design outcomes

Primary

Measure	Time frame
To evaluate the inferior venacaval collapsibility and predict postspinal hypotension by observing heart rate, systolic blood pressure, diastolic blood pressure, mean arterial pressure, SpO2Timepoint: 0mins,3mins,6mins,9mins,12mins,15mins,18mins,20mins followed by every 10mins till the end of surgery	—

Secondary

Measure	Time frame
Need for rescue fluid replacement and vasopressorsTimepoint: 0mins,3mins,6mins,9mins,12mins,15mins,18mins,20mins followed by every 10mins till the end of surgery	—

Countries

India

Contacts

Public ContactPrithvi Raajanand B

Sri Venkateshwaraa medical college hospital and research centre

drarthimd@gmail.com7895683205

Outcome results

None listed

Source: CTRI (via WHO ICTRP) · Data processed: Sep 19, 2026