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Heart FailureNCT07752706

Breathing Exercises for Dyspnea and Anxiety in Heart Failure

A study testing Diaphragmatic and Pursed-Lip Breathing Exercises in people with Heart Failure and Breathing Exercises, run by Istanbul University - Cerrahpasa at 1 site in Turkey (Türkiye).

Active, not recruiting

Under way, not looking for participants. Everyone needed has enrolled. The study is still running.

Official record
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Trial summary

Heart failure is a leading cause of emergency department admissions, with dyspnea and psychological distress being among the most common presenting symptoms. This randomized controlled trial aims to evaluate the effect of nurse-guided diaphragmatic breathing and pursed-lip breathing exercises on dyspnea and… Read more about this study

Who is it for?
Ages 18 years and older
Conditions the study is for
Heart Failure, Breathing Exercises, Dyspnea
What is being tested?
Diaphragmatic and Pursed-Lip Breathing Exercises
Could I receive a placebo?
No, everyone receives an active treatment
How many people
112 participants
Where
1 siteTurkey (Türkiye)
Study dates
5 Mar 2025to 5 Dec 2026
Phase
Interventional
Are there results?
Not yet: the study is under way

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 years and older
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Applicants must be 18 years of age or older. Volunteer to participate in the study. Present to the emergency department of the hospital where the study is planned to be conducted.
  • Having been diagnosed with NYHA stage III-IV heart failure by a physician. Being able to understand and speak Turkish.

Who cannot join

  • Being under 18 years of age Not being a volunteer to participate in the study Using narcotic analgesics to a degree that affects understanding questions and communication, Having a diagnosis of serious mental illness Not having been diagnosed with NYHA stage III-IV heart failure by a physician
  • -

Trial locations and contacts

1 site in 1 country.

Turkey (Türkiye)1 site
  • İstanbul Üniversitesi-Cerrahpaşa

    Istanbul

Other trials in Turkey (Türkiye)

About this study

Official title: The Effect of Breathing Exercises on Dyspnea and Anxiety in Patients Presenting to the Emergency Department Due to Heart Failure

Heart failure is a leading cause of emergency department admissions, with dyspnea and psychological distress being among the most common presenting symptoms. This randomized controlled trial aims to evaluate the effect of nurse-guided diaphragmatic breathing and pursed-lip breathing exercises on dyspnea and psychological distress in patients presenting to the emergency department with heart failure. A total of 112 eligible participants will be randomly assigned in a 1:1 ratio to either an intervention group receiving breathing exercises in addition to standard care or a control group receiving standard care alone. Dyspnea severity will be assessed using the Modified Borg Dyspnea Scale, and psychological distress will be assessed using the Distress Thermometer at predefined time points. The findings are expected to provide evidence for the effectiveness of a simple, low-cost, nurse-led non-pharmacological intervention in improving symptom management in patients with heart failure.

Read the detailed description

Heart failure is a major public health problem associated with frequent emergency department admissions due to symptoms such as dyspnea and anxiety. Dyspnea is one of the most distressing symptoms experienced by patients with heart failure and is often accompanied by increased anxiety, which may further worsen respiratory distress. Although pharmacological treatment remains the cornerstone of acute management, non-pharmacological interventions, including breathing exercises, may provide additional symptom relief.

The aim of this randomized controlled trial is to evaluate the effect of diaphragmatic breathing and pursed-lip breathing exercises on dyspnea and anxiety in patients presenting to the emergency department with heart failure.

A total of 112 eligible patients will be randomly assigned to either an intervention group or a control group. Participants in the intervention group will receive standard emergency department care in addition to nurse-guided diaphragmatic breathing and pursed-lip breathing exercises. The control group will receive standard emergency department care alone.

Clinical parameters, including pulse rate, blood pressure, respiratory rate, oxygen saturation, and distress level, will be assessed according to the study protocol. Dyspnea severity will be evaluated using the Modified Borg Dyspnea Scale, and anxiety-related distress will be assessed using the Distress Thermometer. Outcome measurements will be obtained at baseline and at predefined time points following the intervention.

The primary objective is to determine whether breathing exercises reduce dyspnea severity and anxiety compared with standard care. The findings of this study are expected to provide evidence regarding the effectiveness of a simple, low-cost, and nurse-led non-pharmacological intervention that may improve symptom management in patients with heart failure treated in emergency departments.

Being tested
Diaphragmatic and Pursed-Lip Breathing Exercises
Medical subject headings
Heart Failure, Dyspnea, Anxiety Disorders

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • Diaphragmatic and Pursed-Lip Breathing ExercisesOther

    Participants received standard emergency department care plus nurse-guided diaphragmatic breathing and pursed-lip breathing exercises. The intervention consisted of three cycles of breathing exercises with rest periods between cycles. Participants were observed and supported throughout the intervention.

Study groups in NCT07752706
Study groupRoleWhat they receive
ControlNo interventionNo Intervention
ExperimentalExperimentalBehavioral: Diaphragmatic and Pursed-Lip Breathing Exercises
Receives: Other: Diaphragmatic and Pursed-Lip Breathing Exercises

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Change in psychological distress measured by the Distress Thermometer

    Psychological distress will be assessed using the Distress Thermometer

    Measured: Baseline (before intervention), and at 5, 10, 15, 30, 45, and 60 minutes after initiation of the intervention.

  2. Change in dyspnea severity measured by the Modified Borg Dyspnea Scale

    Dyspnea severity will be assessed using the Modified Borg Dyspnea Scale

    Measured: Baseline (before intervention), and at 5, 10, 15, 30, 45, and 60 minutes after initiation of the intervention.

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted7 Aug 2026
  2. Study start5 Mar 2025
  3. Primary completion5 Dec 2026 (estimated)
  4. Study completion5 Dec 2026 (estimated)

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase N/A
Primary purpose
Supportive care
Allocation
Randomised
Intervention model
Parallel groups
Masking
Single blind
Who is masked
Outcomes assessor
Enrolment
112 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT07752706
Sponsor's protocol ID
E-74555795-050.04-1248939
Status last verified
Mar 2026
First submitted
11 Jul 2026
Last updated
7 Aug 2026
Results posted
No
Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
Yes: Individual participant data will be available upon reasonable request from the corresponding author after publication of the study. Data will be shared in anonymized form.

Questions about this trial

What is this clinical trial studying?

A study testing Diaphragmatic and Pursed-Lip Breathing Exercises in people with Heart Failure and Breathing Exercises, run by Istanbul University - Cerrahpasa at 1 site in Turkey (Türkiye).

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 2 inclusion and 2 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: under way, not looking for participants, as of the sponsor's last update on 7 Aug 2026. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in Turkey (Türkiye). Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

Are results available for this study?

This study is still under way. Results are not available in the source record yet.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Change in psychological distress measured by the Distress Thermometer (time frame: Baseline (before intervention), and at 5, 10, 15, 30, 45, and 60 minutes after initiation of the intervention.). The study lists 2 primary outcomes in all. It is what the study was designed to measure, not a finding.

Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 7 Aug 2026.

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