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A simple bedside score may flag heart patients at risk after surgery — a large study puts it to the test

NCT ID NCT07735689

Knowledge-focused Sponsor: Fujian Medical University Union 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 This study
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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 Jul 30, 2026 · Last updated Jul 31, 2026 · Updated 1 time

Summary

This study looks at whether a simple calculation called the modified shock index (MSI) — which combines heart rate and blood pressure — can predict serious heart complications after non-cardiac surgery in people who already have heart disease. Researchers will review medical records from 1,500 patients aged 45 and older who had major abdominal surgery. The goal is to see if a higher MSI score before or during surgery is linked to a higher chance of heart attack, heart failure, dangerous heart rhythms, or cardiac death afterward.

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 the modified shock index proves accurate, it could give doctors a simple tool to identify high-risk cardiac patients before complications arise after non-cardiac surgery.
What could go wrong
This is a retrospective analysis, not a controlled trial, so it can show associations but not prove cause and effect. The results may not apply to all hospitals or patient groups.

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 1,500 people

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

Expected to start

Aug 2026

An estimate. Start dates often move.

Expected to finish

Dec 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 who underwent gastric or colorectal surgery at Fujian Medical University Union Hospital between January 2020 and December 2025, and who met all inclusion criteria and none of the exclusion criteria.

Ages

45 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: * (1) Age ≥45 years. (2) Underwent elective major abdominal surgery with a duration of ≥2 hours at Fujian Medical University Union Hospital between January 2020 and December 2025. (3) Presence of any of the following: history of heart disease; elevated BNP or cardiac troponin within 30 days before surgery; or at least two cardiac risk factors. (4) Complete electronic medical records available. Exclusion Criteria: * (1) ASA ≥ V. (2) Acute cardiovascular event. (3) Severe uncontrolled hypertension. (4) End-stage renal disease. (5) Sepsis. (6) Preoperative requirement for vasopressor support. (7) Pregnancy. (8) Missing \>20% of key clinical data. (9) Loss to follow-up or refusal to consent to the use of medical records.

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Conditions

The condition(s) this trial relates to.

cardiovascular disorder

As listed by the trial registrant

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

Cardiovascular diseases (CVD) Postoperative

How to take part

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  1. 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 ↗

  2. A doctor treating you

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More trials for these conditions

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