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Ultrasound-Guided fluid plan for anesthesia withdrawn before starting

NCT ID NCT03734497

Knowledge-focused Sponsor: Diskapi Teaching and Research Hospital Source: ClinicalTrials.gov ↗

What the study statuses mean

This study's is highlighted.

Recruitment status, easiest to join first

Recruiting now
This trial is taking on new participants right now.
Not yet recruiting
Registered, but not yet taking participants.
By invitation only
Not open to general applications. Only people the study team invites can take part.
Paused
Paused for now. It may or may not start again.
Ongoing
Running, but no longer taking on new participants.
Completed
The trial has finished. Results may not be published yet.
Stopped early
Stopped early, before it reached the end. That can be for many reasons, including safety.
Cancelled This study
Cancelled before anyone took part.

Expanded access (not trials)

Expanded access
Not a trial. This treatment can be requested outside a study, case by case, for people who qualify.
Expanded access (paused)
Not a trial. The treatment can normally be requested outside a study, but is unavailable right now.
Expanded access (ended)
Not a trial. The treatment could once be requested outside a study, but no longer can.
Approved
The treatment has been approved, so it is available normally rather than through this programme.

When the status isn't known

Details not published
The full record has not been published yet, so there is little to show here.
Status unknown
This status has not been confirmed recently, so it may be out of date.

First seen Jun 27, 2026 · Last updated Jun 27, 2026

Summary

This study was designed to see if using ultrasound to measure blood flow in the carotid artery could help doctors give the right amount of IV fluids during spinal anesthesia for knee surgery, aiming to prevent a drop in blood pressure. The trial was withdrawn before enrolling any participants, so no results are available. It was planned for adults aged 19-80 undergoing arthroscopic knee surgery.

What this could mean

Our plain-language read of the trial. This is informational only, not medical advice or a prediction.

Active substance
Ringer's lactate (intravenous fluid)

This is an AI summary of the original study and may miss details. Read our disclaimer.

Study facts

What this study's own registry entry says, in plain language.

Phase

Not a phased trial

Phase numbers describe drug development. The registry uses this when they do not apply, as it does for trials of devices, procedures or behaviour changes, and for observational studies.

Expected to start

Jul 2022

An estimate. Start dates often move.

Expected to finish

Dec 2022

An estimate. End dates often move.

Lead sponsor

Other sponsor

The registry's catch-all category, for sponsors it does not file as a company, a government agency, or a research network.

Who can take part

This study's own entry requirements. Only the study team can say for certain whether you qualify.

Ages

19 to 80 years

Sex

Anyone

Healthy volunteers

Not accepted

This study is not open to healthy volunteers. The entry requirements below say who it is open to.

Show the full entry requirements

Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.

Inclusion Criteria: * Adult patients (19-80 years of age) who were scheduled to undergo arthroscopic knee surgery under spinal anesthesia Exclusion Criteria: * Mean blood pressure \< 70 mmHg before induction of general anesthesia * Patients who have currently taken angiotensin-converting enzyme inhibitor * Patients who have currently taken angiotensin receptor blocker * the presence of carotid artery stenosis \> 50% * cardiac rhythm other than sinus * unstable angina * a left ventricular ejection fraction of \< 40% * severe vascular disease * implanted pacemaker/cardioverter * autonomic nervous system disorders * pregnancy

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As listed by the trial registrant

The condition terms exactly as the trial's registrant entered them.

Meniscus disorder

Contacts and locations

Locations

  • Diskapi Yildirim Beyazit Teaching and Research Hospital

    Ankara, 06110, Turkey (Türkiye)

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