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Hot climate may raise bleeding risk after heart surgery, study suggests

NCT ID NCT07510022

Knowledge-focused Sponsor: Al-Azhar University Source: ClinicalTrials.gov ↗

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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 This study
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 Results may not be published yet.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)
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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

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Status unknown
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First seen Jun 26, 2026 · Last updated Jun 27, 2026 · Updated 1 time

Summary

This study looked at 400 Egyptian patients who had open-heart surgery to see if living in a hot climate affects bleeding afterward. Researchers compared patients from hot regions (Upper Egypt) with those from milder regions (Lower Egypt). The goal was to understand if climate plays a role in recovery, which could help doctors personalize care.

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 this study finds a link, it could help doctors adjust care for heart surgery patients living in hot climates.
What could go wrong
This is an observational study, not a treatment trial. It cannot prove cause and effect, and results may not apply to other regions or populations.

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

400 people

The number who actually took part.

Started

Jun 2023

Finished

Jun 2025

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

This retrospective observational study involved 400 Egyptian patients, comprising both sexes, aged≥ 18 years, underwent open-heart surgery with cardiopulmonary bypass. This research took place over a two-year period between June 2023 and June 2025, following approval from the ethical committee of Al-Azhar University Hospitals.

Ages

18 years and older

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: * Age ≥18 years. * Both sexes. * Egyptian nationality. * Underwent open-heart surgery with cardiopulmonary bypass. * Complete medical records and postoperative bleeding data are available. Exclusion Criteria: * Emergency surgeries * Pre-existing coagulopathy * Use of anticoagulants not discontinued prior to surgery * Re-do surgeries

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Conditions

The condition(s) this trial relates to.

hemorrhagic disease vascular hemostatic disease

As listed by the trial registrant

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

Bleeding tendency Cardiac surgery Egyptian patients Hot climate

Contacts and locations

Locations

  • Al-Azhar University

    Cairo, 11651, Egypt

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Other studies related to the condition(s) this trial covers.