Can slow breathing heal a broken heart? new study tests Device-Guided breathing
NCT ID NCT03324529
First seen Jun 25, 2026 · Last updated Jun 27, 2026 · Updated 1 time
Summary
This study tests whether a device that guides slow breathing can improve heart rate variability and quality of life in people who have had takotsubo syndrome (also known as broken heart syndrome). Ten patients with a history of takotsubo and ten healthy volunteers will use the RESPeRATE device at home for 15 weeks. Researchers will measure heart function remotely to see if the breathing exercises help.
What this could mean
Our plain-language read of the trial. This is informational only, not medical advice or a prediction.
- Active substance
- RESPeRATE device-guided slow breathing
- What this could lead to
- If it works, this could point toward a simple, drug-free way to improve heart health and well-being after takotsubo syndrome.
- What could go wrong
- This is a very small, early study with only 24 participants, so results may not apply to everyone. It is not designed to prove the device treats or prevents the condition.
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.
- Phase
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Not a phased trial
Phase numbers describe drug development. The registry uses this when they do not apply, as it does for trials of devices, procedures or behaviour changes, and for observational studies.
- Participants
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About 24 people
The number the study aims to enrol. It can still change while the study runs.
- Started
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Oct 2021
- Expected to finish
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Jun 2027
An estimate. End dates often move.
- Lead sponsor
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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.
- Ages
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21 years and older
- Sex
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Anyone
- Healthy volunteers
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Not accepted
This study is not open to healthy volunteers. The entry requirements below say who it is open to.
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Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.
Inclusion Criteria: * Confirmed history of takotsubo syndrome * Healthy person with no significant past history of cardiovascular or neurological disease such as heart failure or heart attack; people with cardiovascular risk factors such as hypertension will be permitted to participate Exclusion Criteria: * Pacemaker or defibrillator implanted * Evidence of autonomic neuropathy, alcohol or drug abuse or exposure to neurotoxins (chemotherapy). * Diabetes
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Conditions
The condition(s) this trial relates to.
As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.
Contacts and locations
Locations
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New York University School of Medicine
New York, New York, 10016, United States
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