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RecruitingNCT06098222Updated Dec 7, 2023

The Effect of Slow Breathing Exercise Applied to Patients on Pulse, Blood Pressure and Quality of Life

An interventional study of Slow breathing exercise training in Slow Breathing and Acute Myocardial Infarction, sponsored by Saglik Bilimleri Universitesi. Recruiting at 1 site in Turkey. Open to participants aged 18 Years to 65 Years, including healthy volunteers. Per ClinicalTrials.gov, last updated 2023-12-07.

Sponsored by Saglik Bilimleri Universitesi · Not applicable, Interventional, and Prevention

From the registry’s dates

  • Primary completion was expected by Apr 2024, 2 years 6 months ago, but the record still lists the study as recruiting.
  • Started Oct 2023; still recruiting 3 years later.
Phase
Not applicable
Study type
Interventional
Enrollment
80
Allocation
Randomized
Ages
18 Years to 65 Years
Sex
All
01

Study summary

This study was designed as a randomized controlled experimental type in order to determine the effect of slow breathing exercise applied after the procedure on heart rate, blood pressure and quality of life in patients who underwent Primary Percutaneous Coronary Intervention (PCI) I after the diagnosis of ST Elevation Myocardial Infarction (STEMI).

Patients who underwent primary PCI due to STEMI in a Training and Research Hospital in Istanbul will constitute the study population. A sample will be formed with a total of 80 patients, 40 experimental and 40 control groups, selected by computer assisted simple randomization method among volunteer patients who underwent primary PCI and met the inclusion criteria.

In this study, slow breathing exercise training will be given to the experimental group by the coordinator. In their home followmup after discharge, they will be asked to do slow breathing exercises for 10 minutes twice a day for eight weeks.

Data will be collected using the "Patient Information Form", "MacNew Heart Disease Health Related Quality of Life Scale", "VAS Breath Therapy Satisfaction Evaluation Form", "Self-Monitoring Form" and "Patient Follow up Form". Patients will be seen again during the outpatient clinic examination in the fourth and eighth weeks and the effectiveness of slow breathing exercises will be evaluated with data collection forms.

Read the detailed description

Cardiovascular Diseases (CVD) is still the leading cause of death in the world and in our country, despite significant advances in its diagnosis and treatment. Acute Coronary Syndromes (ACS), which are among the CVD's, occur with the deterioration of the integrity of the atherosclerotic plaque in the coronary vessels. The deadliest form of ACS is ST Elevation Myocardial Infarction (STEMI).

Primary Percutaneous Coronary Intervention (PCI) is recommended primarily in the treatment of acute myocardial infarction. In these patients, changes in vital signs resulting from diagnosis and treatment and a permanent effect on quality of life can be observed.

Slow breathing exercise is a behavioral technique in which a low breathing rate is applied. Breathing exercises reduce heart rate, blood pressure, reduce anxiety and pain while shown to improve symptoms and improve quality of life in patients with chronic obstructive pulmonary disease and asthma. This technique provides conscious deep and slow breathing and effective breathing, as well as improving conscious control over relaxation and increasing awareness.

This study was designed as a randomized controlled experimental type in order to determine the effect of slow breathing exercise applied after the procedure on heart rate, blood pressure and quality of life in patients who underwent PCI after the diagnosis of STEMI. Study data will be collected between 23 October 2023- 30 April 2024 Patients who underwent primary PCI due to STEMI in a Training and Research Hospital in Istanbul will constitute the study population. A sample will be formed with a total of 80 patients, 40 experimental and 40 control groups, selected by computer assisted simple randomization method among volunteer patients who underwent primary PCI and met the inclusion criteria.

In the study, slow breathing exercise training will be given to the experimental group by the coordinator. In their home followmup after discharge, they will be asked to do slow breathing exercises for 10 minutes twice a day for eight weeks. It will be ensured that video calls and breathing exercises are performed together in the form of conference calls.. "Slow Breathing Exercise Training Booklet" and "Slow Breathing Exercise Short Film Video" will be used in the trainings. A calibrated portable digital upper arm sphygmomanometer will be used for heart rate and blood pressure measurement. Groups will be asked to record their own pulse and blood pressure measurements at home.

Data will be collected using the "Patient Information Form", "Mac New Heart Disease Health Related Quality of Life Scale", "VAS Breath Therapy Satisfaction Evaluation Form", "Self-Monitoring Form" and "Patient Follow up Form". Patients will be seen again during the outpatient clinic examination in the fourth and eighth weeks and the effectiveness of slow breathing exercises will be evaluated with data collection forms.

SPSS (IBM Corp., Armonk, NY, USA) program will be used in the analysis of the findings. Before analysis, the normality of the data will be evaluated with the Shapiro-Wilk test. Comparisons between the two groups will be made with descriptive statistics (frequency, percentage, etc.) in the analysis, as well as the Independent Sample t-test (in data with normal distribution) and Mann-Whitney U test (in data that does not show normal distribution) in quantitative data. In comparisons of more than two groups, One-Way Analysis of Variance (One-way ANOVA) or its non-parametric equivalent Kruskal-Wallis test will be used. Paired Samples t-Test or its non-parametric equivalent Wilcoxon test will be used to test the difference in quantitative repeated measurements. Qualitative comparisons between groups will be made with the Chi-Square test. Results, significance in the 95% confidence interval will be evaluated under p\<0.05.

02

Conditions studied

  • Slow Breathing
  • Acute Myocardial Infarction

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Keywords

  • Blood Pressure
  • Pulse
  • Percutaneous Coronary Intervention
  • Quality of Life
  • Slow Breathing Exercise
03

In context

Hypoventilation

96 studies on the registry are indexed under Hypoventilation; 21 are open to participants now.

This study's planned enrollment of 80 is above the median of 52 across 63 interventional studies indexed under Hypoventilation.

Browse Hypoventilation studies →

Lead sponsor

Saglik Bilimleri Universitesi is the lead sponsor of 453 studies on the registry; 140 are open to participants now.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
18 Years to 65 Years
Sexes eligible
All
Accepts healthy volunteers
Yes

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

  • Young adult patients between the ages of 18-65,
  • Patients who have not received fibrinolytic therapy before or simultaneously with Percutaneous Coronary Intervention (PCI) procedure,
  • Patients who have passed 24 hours after the PCI procedure,
  • Patients with a pulse > 60/min (whether or not beta blockers are used after PCI),
  • Patients without rhythm problems,
  • Patients with hypertension (systolic blood pressure 140-179 mmHg, diastolic blood pressure 90-109 mmHg), (whether or not they use antihypertensive and beta blocker drugs),
  • Patients without a diagnosis of mental or psychiatric disease,
  • Patients who have the materials to watch the breathing exercise video,
  • Patients who can receive reminder messages and make video calls (with devices such as a smartphone, computer, tablet, etc.),
  • Patients with a portable blood pressure monitor suitable for pulse and blood pressure measurement during home monitoring (the necessary equipment will be provided within the scope of the TUBITAK project),
  • Patients without hearing or visual impairment,
  • Patients who can read and write
  • Patients who can communicate,
  • Patients without language problems,
  • Patients who volunteer and indicate this verbally and in writing

Exclusion criteria

Exclusion Criteria:

  • Patients with elective/appointed appointments for whom PCI is planned in advance,
  • Patients whose PCI procedure failed,
  • Patients who underwent only thrombus aspiration and balloon angioplasty during the PCI procedure,
  • Patients who have previously undergone PCI and at least one year has not passed since,
  • Patients who do not comply with planned interventions,
  • Patients who do not volunteer to participate in the study,
  • Patients with physical limitations and respiratory distress who cannot do breathing exercises,
  • Patients with rhythm problems,
  • Patients with diseases that can increase heart rate (anemia, hyperthyroidism, hyperthermia, infection),
  • Patients who are morbidly obese ( > 40 kg/m2),
  • Patients with hearing impairment,
  • Patients with mental disabilities or perception problems,
  • Patients who have previously received breathing therapy training will not be included in the study.
Terms in these criteria, in plain language(1)

Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.

BMI (body mass index)

Weight in kilograms divided by height in metres squared. Example: 70 kg and 1.75 m gives 70 ÷ (1.75 × 1.75) ≈ 22.9.

What counts as overweight or obesity differs between countries (some use lower cut-offs), so go by the range the study states.

05

Study design

Phase
Not applicable
Primary purpose
Prevention
Allocation
Randomized
Intervention model
Parallel assignment
Masking
Single (Participant)
Enrollment
80 participants (estimated)

Study arms

  • Experimental
    Slow breathing exercise training

    Slow breathing exercise training will be given to patients in the experimental group. After discharge, patients will be asked to do slow breathing exercises twice a day for 10 minutes every day for eight weeks. Daily and/or weekly online, weekday, weekend, daytime, evening, video phone calls will be made with patients who are discharged at the end of the training to practice the slow breathing exercise every day according to the patients' demand. It will be provided that breathing exercises will be performed together with a video call in the form of a conference call. Patients will be asked to take measurements a total of two days a week, one day on weekdays and one day on weekends, in the morning, after a light breakfast, at least five minutes of rest and breathing exercises. Pulse and blood pressure measurements at home on weekdays will be asked to be measured Decouply from breathing exercise, and on weekends before and after breathing exercise.

    Behavioral: Slow breathing exercise training

  • No intervention
    Control group

    In the control group, patients will be shown and told self-blood pressure and pulse measurement at home at discharge. A reminder text message will be sent to the mobile phones of patients for blood pressure and pulse measurement at home. The control group will also be asked to perform their own blood pressure and pulse monitoring at home and record a Self-Monitoring Form (for the Control group).During home follow-up, patients will be sent reminder text messages to their mobile phones two days a week. According to the request of patients, daily and/or weekly online, weekdays, weekends, daytime, evening, phone calls will be made to measure pulse and blood pressure values two days a week.

Interventions

  • BehavioralSlow breathing exercise training

    Slow breathing exercise training will be given by the researcher in a single one-hour session in the meeting room of the unit 24 hours after the PCI and/or the next day. After a 20-minute silent rest in the training, patients will be asked to breathe slowly through the nostrils for 4 seconds and slowly exhale through the mouth for 6 seconds to reach 6-8 breaths/min. The patient will rest for 5 seconds after every 6 slow breaths. During the training period, a stopwatch will be used by observing the patient's chest and abdominal movements in order to determine whether the patients have reached the required respiratory rate.

06

What researchers measure

Primary outcomes

  1. Slow breathing exercise changes the pulse rate

    The pulse rate in the experimental group that applied slow breathing exercises after Percutaneous Coronary Intervention is expected to be statistically significantly (p\<0.05) lower than the control group. A calibrated portable digital upper arm blood pressure monitor purchased within the scope of the TUBITAK project will be delivered to the patient to measure pulse values. Volunteers will be asked to take measurements twice a week, one weekday and one weekend, in the morning, after a very light breakfast or 2 to 4 hours after a meal, and after at least five minutes of rest and breathing exercise. The experimental group's heart rate will be measured at home on weekdays, independently of the breathing exercise, and on the weekends, before and after the breathing exercise. Patients will be given a patient follow up form to record data.

    Time frame: 2 months

  2. Slow breathing exercise changes systolic blood pressure

    Systolic blood pressure in the experimental group that applied slow breathing exercises after Percutaneous Coronary Intervention is expected to be statistically significantly lower (p\<0.05) than the control group. A calibrated portable digital upper arm blood pressure monitor purchased within the scope of the TUBITAK project will be delivered to the patient to measure blood pressure values. Volunteers will be asked to take measurements two days a week, one weekday and one weekend, in the morning, after a very light breakfast or 2 to 4 hours after a meal, and after at least five minutes of rest and breathing exercise. The experimental group's blood pressure measurements will be measured at home during the weekdays, independently of the breathing exercise, and on the weekends, before and after the breathing exercise. Patients will be given a patient follow up form to record data.

    Time frame: 2 months

  3. Slow breathing exercise changes diastolic blood pressure

    Diastolic blood pressure in the experimental group that applied slow breathing exercises after Percutaneous Coronary Intervention is expected to be statistically significantly lower (p\<0.05) than the control group. A calibrated portable digital upper arm blood pressure monitor purchased within the scope of the TUBITAK project will be delivered to the patient to measure blood pressure values. Volunteers will be asked to take measurements two days a week, one weekday and one weekend, in the morning, after a very light breakfast or 2 to 4 hours after a meal, and after at least five minutes of rest and breathing exercise. The experimental group's blood pressure measurements will be measured at home during the weekdays, independently of the breathing exercise, and on the weekends, before and after the breathing exercise. Patients will be given a patient follow up form to record data.

    Time frame: 2 months

  4. Mac New Heart Disease Health Related Quality of Life Scale

    Mac New Heart Disease Health Related Quality of Life Questionnaire is a scale developed by Oldridge et al. in 1991 to determine the quality of life of patients after Myocardial Infarction. This scale is designed to evaluate how physical, emotional, social functions and daily activities are affected by Coronary Artery Disease over a two week period. This scale consists of three subscales and 27 items: physical limitation scale (n=13), emotional function scale (n=14) and social function scale (n=13). Scores range from 1 to 7 on average. A low score indicates worse quality of life, a high score indicates better quality of life. Some of the items contain more than one sub-dimension. Subscale scores are calculated by averaging the answers to questions in each subscale, and considering possible scores ranging from 1 to 7, higher scores indicate a better quality of life. Cronbach Alpha Value is \> 0.93. Written permission was obtained for the use of the scale.

    Time frame: 2 months

Secondary outcomes

  1. Satisfaction of Breathing Exercise

    Visual Analog Scale will be used to evaluate patients' satisfaction with breathing therapy. A score of 'one' on the scale indicates that they are dissatisfied with the applied breathing therapy, a score of 'five' indicates that satisfaction is moderate, a score of '10' indicates that satisfaction is very high, and it will be indicated that satisfaction increases as the score increases. Patients will be asked to rate the level of satisfaction with breathing therapy.

    Time frame: 2 months

07

Study locations

1 of 1 sites recruiting
  • Istanbul Provincial Directorate of Health Koşuyolu High Specialization Education and Research Hospital
    Istanbul, 34852, Turkey
    Recruiting
08

References and documents

Individual participant data

Plan to share: No — The IPD sharing will be decided after the data collection has been started. It is planned to share the study protocol.

No publications or documents are linked to this record.

09

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Dec 7, 2023, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT06098222
Collaborators
The Scientific and Technological Research Council of Turkey
Responsible party
Melike Çelik (Lecturer, Saglik Bilimleri Universitesi) — Principal investigator
First posted
Oct 24, 2023
Start date
Oct 23, 2023
Primary completion
Apr 30, 2024 (estimated)
Completion
Oct 1, 2024 (estimated)
Last update
Dec 7, 2023

Study contacts

Melike CELIK, Lecturer
Contact
melike.celik@marmara.edu.tr
905321562205
Selda CELIK, Assoc.Prof.
Contact
selda.celik@sbu.edu.tr
905332253856
Melike CELIK, Lecturer
principal investigator · Marmara University
Selda CELIK, Assoc.Prof.
study director · University of Health science
MELİKE CELİK, Lecturer
study chair · 905321562205

Oversight

Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

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