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Could longer fasting before surgery raise blood pressure risks?

NCT ID NCT07785635

Knowledge-focused Sponsor: University Hospital Ostrava Source: ClinicalTrials.gov ↗

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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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 Aug 25, 2026 · Last updated Aug 26, 2026 · Updated 1 time

Summary

This study looks at whether the time a patient fasts before surgery is linked to post-induction hypotension (PIH), a sudden drop in blood pressure after anesthesia is given. Researchers will track 100 adults undergoing planned procedures with general anesthesia, recording how long they fasted and any blood pressure changes. They will also compare other risk factors like health conditions and medications. The goal is to see if longer fasting times lead to more severe blood pressure drops, which could inform future fasting recommendations.

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 a link is found, it could lead to better fasting guidelines to reduce blood pressure drops during anesthesia.
What could go wrong
This is a small, single-center observational study, so results may not apply broadly. Other factors like medications and health conditions also affect blood pressure.

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 100 people

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

Started

May 2025

Expected to finish

Sep 2026

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.

Who is studied

Patients undergoing surgery in general anaesthesia

Ages

18 years and older

Sex

Anyone

Healthy volunteers

Accepted

You do not need to have the condition being studied to take part.

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: * Age ≥ 18 years * Patients undergoing planned surgical or diagnostic procedure * Intubation under general anaesthesia Exclusion Criteria: * Pregnancy * Disagreement with participation in the study * Bowel preparation

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Conditions

The condition(s) this trial relates to.

Fasting

As listed by the trial registrant

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

Post-induction hypotension

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

  • University Hospital Ostrava

    RECRUITING

    Ostrava, Moravian-Silesian Region, 70852, Czechia

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