WithdrawnNot Applicable

Carotid Flow Time Measurement Guided Fluid Management During Spinal Anesthesia

Stopped: Ethical approval not obtained

Turkey (Türkiye)0Started 2022-07

Plain-language summary

Fluid management is a fundamental aspect of anesthesia. Several monitorization methods have been introduced to optimize fuid management. To date neither of them were ideal. Corrected flow time measurement (FTc) in the carotid artery was recently introduced to detect fluid responsiveness. Spinal anesthesia causes hypotension and fluid preloading is suggested to overcome this problem. The aim of this study is to evaluate the effect of FTc guided fluid loading on spinal anesthesia induced hypotension.

Who can participate

Age range

19 Years – 80 Years

Sex

ALL

See this in plain English?

AI-rewrites the medical criteria so a patient or caregiver can understand them. Always confirm with the trial site.

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

Questions worth asking your doctor

Bring these to your next appointment. They're a starting point for a shared conversation — not a sign you qualify or a recommendation to enrol.

1Based on my diagnosis and history, is this trial worth exploring for me — or is there a standard treatment we should try first?
2What does this trial's phase tell us about how much is already known about its safety and benefit?
3What would taking part actually involve for me — visits, tests, time, and travel?
4What are the known and possible risks or side effects I should weigh, and how would they be monitored?
5If this trial isn't the right fit, what other options or trials would you suggest I look into?

Generated to help you prepare — always confirm anything about your own eligibility and care with the study team and your doctor.

Questions for the trial coordinator

The trial coordinator is the person who runs the study day to day. These cover the practical side — logistics, costs, and what taking part would actually mean for your life. The study team confirms whether you meet the criteria; these are questions to ask, not a sign you qualify.

1What does taking part actually involve week to week — how many visits, where, and how long does each one take?
2What costs are covered by the study, and what might I have to pay for myself, including travel, parking, or time off work?
3What happens during screening, and what happens if the study team confirms I don't meet the criteria after those tests?
4Who pays for the scans, blood work, and other tests the trial requires — the study, my insurance, or me?
5How will being in the trial affect my regular care, and will my own doctor stay informed and involved?
6Can I leave the trial at any point if I change my mind, and what would happen to my care if I do?

A starting point for the conversation — always confirm anything about your own eligibility, costs, and care with the study team and your doctor.

What they're measuring

Number of patients with Hypotension

Timeframe: 5 minutes after induction of spinal anesthesia

Trial details

NCT IDNCT03734497

SponsorDiskapi Teaching and Research Hospital

Sponsor typeOTHER

Study typeINTERVENTIONAL

Primary completion2022-09

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