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A study looked at how changes in a neck vein, seen through ultrasound when a patient is tilted head-down, might help predict if their blood pressure will drop during general anesthesia.

A prospective observational study: Ultrasonography monitored changes in the right subclavian vein diameter induced by Trendelenburg position as a predictor for hypotension associated with general anaesthesia. - NIL

Status
Active, not recruiting
Phases
Unknown
Study type
Observational
Source
CTRI
Registry ID
CTRI/2025/07/090337
Enrollment
70
Registered
2025-07-07
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: - Health Condition 2: O- Medical and Surgical

Interventions

Intervention1: Nil: Nil

Sponsors

PACIFIC MEDICAL COLLEGE AND HOSPITAL UDAIPUR
Lead Sponsor

Eligibility

Inclusion criteria

Inclusion criteria: 1.Patients scheduled for a surgical procedure requiring general anaesthesia. 2.Patients giving informed consent. 3.American Society of Anaesthesiologists (ASA) Grade (I/II). 4.Adult patients aged between 18-60 years.

Exclusion criteria

Exclusion criteria: 1.Refusal of consent. 2.American Society of Anaesthesiologists (ASA) Grade (III/IV/V). 3.Patients with known cardiovascular diseases or any other significant comorbid conditions that significantly alter hemodynamic responses. 4.Patients with contraindications to the Trendelenburg position. 5.Patients with a history of significant venous anomalies or thrombosis in the subclavian vein.

Design outcomes

Primary

MeasureTime frame
To see ultrasonography monitored changes in the right subclavian vein diameter induced by Trendelenburg position as a predictor for hypotension associated with general anaesthesiaTimepoint: Intra operative period—

Secondary

MeasureTime frame
To predict hypotension using collapsibility index of right subclavian veinTimepoint: Perioperative and intraoperative periods—

Countries

India

Contacts

Public ContactDr Ramakant

Pacific medical college and hospital

dr.rkvhu1@gmail.com8058021697

Outcome results

None listed

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