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Nerve system glitches may worsen blood pressure swings during achalasia surgery — a study investigates

NCT ID NCT05772260

Knowledge-focused Sponsor: Gangnam Severance 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
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 Results may not be published yet.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)
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This status has not been confirmed recently, so it may be out of date.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 22, 2026 · Last updated Jul 23, 2026 · Updated 1 time

Summary

This study looks at whether achalasia patients with autonomic (involuntary) nerve system problems experience more blood pressure instability during a procedure called per-oral endoscopic myotomy (POEM) under general anesthesia. Researchers will test nerve function before surgery and track advanced blood pressure measures during the operation. The goal is to see if a simple nerve test could help predict and manage blood pressure changes during the procedure.

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 help anesthesiologists anticipate and manage blood pressure swings during POEM in achalasia patients.
What could go wrong
This is a small observational study, so it can only show an association, not cause and effect. Results may not apply to all achalasia patients or other procedures.

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

41 people

The number who actually took part.

Started

Apr 2023

Finished

Nov 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

Adult patients who are scheduled to undergo per-oral endoscopic myotomy in Gangnam Severance Hospital will be eligible.

Ages

19 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. Patients who are scheduled to undergo per-oral endoscopic myotomy in Gangnam Severance Hospital 2. Patients aged ≥ 19 years Exclusion Criteria: 1. Patients who are hemodynamically unstable before surgery 2. Patients in whom preoperative heart rate variability (HRV) test cannot be conducted 3. Pregnant women of breastfeeding women 4. Patients unable to read the informed consent form

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Conditions

The condition(s) this trial relates to.

achalasia Esophageal Achalasia

As listed by the trial registrant

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

Achalasia

Contacts and locations

Locations

  • GangnamSeverance Hospital

    Seoul, Seoul, South Korea

More trials for these conditions

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