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Your muscle mass may determine how long numbing lasts

NCT ID NCT07638280

Knowledge-focused Sponsor: Taksim Egitim ve Arastirma Hastanesi Source: ClinicalTrials.gov ↗

What the study statuses mean

This study's is highlighted.

Recruitment status, easiest to join first

Recruiting now This study
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 Results may not be published yet.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
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This status has not been confirmed recently, so it may be out of date.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 looks at how things like age, sex, body mass, and back muscle size affect how long spinal anesthesia numbs you during surgery. Researchers will measure back muscles with ultrasound and track how fast numbness spreads. The goal is to understand these factors better, not to test a new drug.

What this could mean

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

What this could lead to
If successful, this study could help doctors better predict how long spinal anesthesia will last for each patient, improving surgical planning and patient comfort.
What could go wrong
This is an observational study, not a treatment trial. It only measures factors and does not test a new drug or therapy, so it won't directly lead to a cure or new treatment.

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.

Participants

About 140 people

The number the study aims to enrol. It can still change while the study runs.

Started

Jun 2026

Expected to finish

Dec 2026

An estimate. End dates often move.

Lead sponsor

A government agency

The lead sponsor is a government body.

Who can take part

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

Who is studied

Patients aged 18-80 years, male and female, classified as ASA physical status I-III, and scheduled for elective lower abdominal surgery.

Ages

18 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: * Patients aged 18-80 years * ASA physical status I-III * Patients scheduled for elective lower abdominal surgery. Exclusion Criteria: * Patient refusal to participate * Coagulopathy * Use of medications or substances known to impair coagulation * Pregnancy, sepsis * Shock * Severe aortic or mitral regurgitation * Peripheral vascular disease * Increased intracranial pressure * Mental disorders * Spinal column deformity * History of previous spinal surgery.

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As listed by the trial registrant

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

Paraspinal muscle mass and spinal anaesthesia

How to take part

Only the study team decides who joins. These are the ways to reach them.

  1. The places running it

    1 site. The list below names each one and where it is.

  2. The official record

    ClinicalTrials.gov lists the study team's own contact details, including names and phone numbers. We don't republish those.

    Open the record ↗

  3. A doctor treating you

    A doctor who knows your case can contact a study site on your behalf, and can tell you whether this study is worth pursuing at all.

Contacts and locations

Locations

  • Taksim Training and Research Hospital

    RECRUITING

    Istanbul, 34000, Turkey (Türkiye)