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Effect of Different Breathing Techniques on Dyspnea and Cardiopulmonary Parameters Among Patients After Open Heart Surgery

14. maj 2026 opdateret af: Muslim Aqeel Essa, University of Baghdad

Effect of Segmental Breathing Versus Active Cycle Breathing Techniques on Dyspnea and Cardiopulmonary Parameters Among Patients After Open Heart Surgery: Randomized Controlled Trial.

Open heart surgery is often associated with postoperative pulmonary complications, reduced lung expansion, dyspnea, and impaired cardiopulmonary function. Breathing exercises are commonly used after surgery to improve lung ventilation, enhance oxygenation, and support respiratory recovery. However, limited evidence is available comparing the effectiveness of segmental breathing exercises and active cycle breathing technique (ACBT) in patients after open heart surgery.

This randomized controlled trial will compare the effects of segmental breathing exercises and ACBT on dyspnea and cardiopulmonary parameters in adults undergoing open heart surgery. Participants will be randomly assigned to either the segmental breathing exercise group, the ACBT group, or the standard care group during the postoperative period following extubation.

Cardiopulmonary parameters, including oxygen saturation, respiratory rate, heart rate, and blood pressure, as well as dyspnea severity and postoperative pulmonary complications, will be assessed before and after the interventions.

The findings of this study may help identify the most effective breathing exercise technique for improving respiratory outcomes, reducing postoperative pulmonary complications, and supporting evidence-based postoperative rehabilitation after cardiac surgery.

Studieoversigt

Detaljeret beskrivelse

This randomized clinical trial evaluates the effects of segmental breathing exercises (SBE) and active cycle breathing technique (ACBT) on dyspnea, cardiopulmonary parameters, and postoperative pulmonary complications in adults undergoing elective open-heart surgery with cardiopulmonary bypass.

Participants will be randomly assigned to one of three groups: segmental breathing exercises group, active cycle breathing technique group, or standard care group. Patients in the intervention groups will perform the assigned breathing exercises after extubation, including sessions conducted 1 hour and 6 hours post-intervention during the early postoperative period.

Cardiopulmonary parameters, including oxygen saturation, respiratory rate, heart rate, and blood pressure parameters, will be monitored throughout hospitalization. Dyspnea and postoperative pulmonary complications, including atelectasis and pneumonia, will also be assessed.

The primary purpose of this study is to determine the effectiveness of breathing exercise interventions in improving postoperative respiratory outcomes and reducing pulmonary complications after cardiac surgery. The study also aims to support evidence-based postoperative rehabilitation practices for healthcare professionals caring for patients after open-heart surgery.

Undersøgelsestype

Interventionel

Tilmelding (Anslået)

99

Fase

  • Ikke anvendelig

Kontakter og lokationer

Dette afsnit indeholder kontaktoplysninger for dem, der udfører undersøgelsen, og oplysninger om, hvor denne undersøgelse udføres.

Studiekontakt

Undersøgelse Kontakt Backup

  • Navn: Rusul Khalid Kadhim, Master Student

Studiesteder

    • Baghdad Governorate
      • Baghdad, Baghdad Governorate, Irak, 10001
        • Rekruttering
        • Ibn Al-Bitar Specialized Hospital for Cardiac Surgery
        • Ledende efterforsker:
          • Muslim Aqeel Essa, Master student
      • Baghdad, Baghdad Governorate, Irak, 10001
        • Rekruttering
        • Iraqi Center for Heart Diseases
        • Ledende efterforsker:
          • Muslim Aqeel Essa, Master student
    • Kerbala Governorate
      • Karbala, Kerbala Governorate, Irak, 56001
        • Rekruttering
        • Al-Hassan Al-Mujtaba Hospital
        • Ledende efterforsker:
          • Muslim Aqeel Essa, Master student

Deltagelseskriterier

Forskere leder efter personer, der passer til en bestemt beskrivelse, kaldet berettigelseskriterier. Nogle eksempler på disse kriterier er en persons generelle helbredstilstand eller tidligere behandlinger.

Berettigelseskriterier

Aldre berettiget til at studere

  • Voksen
  • Ældre voksen

Tager imod sunde frivillige

Ingen

Beskrivelse

Inclusion Criteria:

  • Age 18-75 years.
  • Scheduled for elective open-heart surgery.
  • Can understand instructions and perform Segmental breathing and Active cycle breathing techniques.
  • Stable preoperative hemodynamic condition.

Exclusion Criteria:

  • Emergency cardiac surgeries.
  • Patients with pre-existing severe pulmonary disease (e.g., COPD, asthma, restrictive lung disease, Atelectasis, and Tuberculosis).
  • Neurological disorders affecting breathing effort.
  • Patients with rib fractures, recent thoracic trauma, or contraindications for coughing maneuvers.
  • Inability to provide informed consent (cognitive impairment, language barrier).

Studieplan

Dette afsnit indeholder detaljer om studieplanen, herunder hvordan undersøgelsen er designet, og hvad undersøgelsen måler.

Hvordan er undersøgelsen tilrettelagt?

Design detaljer

  • Primært formål: Behandling
  • Tildeling: Randomiseret
  • Interventionel model: Parallel tildeling
  • Maskning: Enkelt

Våben og indgreb

Deltagergruppe / Arm
Intervention / Behandling
Eksperimentel: Segmental Breathing Exercises
Patients receive segmental breathing exercises after open heart surgery to improve lung expansion and cardiopulmonary function
Deep breathing exercises focusing on specific lung segments to improve ventilation, lung expansion, and oxygenation in post open heart surgery patients.
Eksperimentel: Active Cycle Breathing Technique
Patients receive active cycle breathing technique (ACBT) after open heart surgery to enhance airway clearance and improve respiratory function.
A combination of breathing control, thoracic expansion exercises, and forced expiration technique to improve airway clearance and lung function.
Aktiv komparator: Standard Postoperative Care
Patients receive routine postoperative care without structured breathing exercise interventions.
Participants will receive routine postoperative care according to institutional protocols following cardiac surgery. This includes standard medical and nursing management such as oxygen therapy, pain control, monitoring of vital signs, and mobilization as tolerated, without additional structured respiratory physiotherapy interventions.

Hvad måler undersøgelsen?

Primære resultatmål

Resultatmål
Foranstaltningsbeskrivelse
Tidsramme
Oxygen Saturation (SpO₂)
Tidsramme: Measurements will be obtained at baseline pre-intervention, 1 hour post-intervention, and 6 hours post-intervention during hospital stay
Assessment of peripheral oxygen saturation in patients after open heart surgery undergoing breathing exercises (segmental breathing exercises or active cycle breathing technique)
Measurements will be obtained at baseline pre-intervention, 1 hour post-intervention, and 6 hours post-intervention during hospital stay
Respiratory Rate
Tidsramme: Measurements will be obtained at baseline pre-intervention,1 hour post-intervention, and 6 hours post-intervention
Assessment of respiratory rate in patients after open heart surgery undergoing breathing exercises.
Measurements will be obtained at baseline pre-intervention,1 hour post-intervention, and 6 hours post-intervention
Heart Rate
Tidsramme: Measurements will be obtained at baseline pre-intervention, 1 hour post-intervention, and 6 hours post-intervention during hospital stay
Assessment of heart rate in patients after open heart surgery undergoing breathing exercises.
Measurements will be obtained at baseline pre-intervention, 1 hour post-intervention, and 6 hours post-intervention during hospital stay
Systolic Blood Pressure, Diastolic Blood Pressure, and Pulse Pressure
Tidsramme: Measurements will be obtained at baseline pre-intervention, 1 hour post-intervention, and 6 hours post-intervention during hospital stay
Assessment of Systolic Blood Pressure Pulse Pressure, and Diastolic Blood Pressure in patients after open heart surgery undergoing breathing exercises.
Measurements will be obtained at baseline pre-intervention, 1 hour post-intervention, and 6 hours post-intervention during hospital stay

Sekundære resultatmål

Resultatmål
Foranstaltningsbeskrivelse
Tidsramme
Dyspnea Index
Tidsramme: measur at baseline pre-intervention and post-intervention after 6 hours.
Assessment of dyspnea index in patients after open heart surgery using a standardized dyspnea scale contain ten questions for score 0 = Never. 1 = Almost never. 2 = Sometimes. 3 = Almost always. 4 = Always , the higher number is the worst that to evaluate changes before interventions and after implementation of segmental breathing exercises or active cycle breathing techniques.
measur at baseline pre-intervention and post-intervention after 6 hours.

Andre resultatmål

Resultatmål
Foranstaltningsbeskrivelse
Tidsramme
Mean Arterial Pressure
Tidsramme: Measurements will be obtained at baseline pre-intervention, 1 hour post-intervention, and 6 hours post-intervention during hospital stay
Assessment of Mean Arterial Pressure in patients after open heart surgery undergoing breathing exercises.
Measurements will be obtained at baseline pre-intervention, 1 hour post-intervention, and 6 hours post-intervention during hospital stay

Samarbejdspartnere og efterforskere

Det er her, du vil finde personer og organisationer, der er involveret i denne undersøgelse.

Efterforskere

  • Ledende efterforsker: Wafaa Abd Ali Hattab, Assist prof, College of Nursing , University of Baghdad

Publikationer og nyttige links

Den person, der er ansvarlig for at indtaste oplysninger om undersøgelsen, leverer frivilligt disse publikationer. Disse kan handle om alt relateret til undersøgelsen.

Datoer for undersøgelser

Disse datoer sporer fremskridtene for indsendelser af undersøgelsesrekord og resumeresultater til ClinicalTrials.gov. Studieregistreringer og rapporterede resultater gennemgås af National Library of Medicine (NLM) for at sikre, at de opfylder specifikke kvalitetskontrolstandarder, før de offentliggøres på den offentlige hjemmeside.

Studer store datoer

Studiestart (Faktiske)

2. januar 2026

Primær færdiggørelse (Anslået)

10. juli 2026

Studieafslutning (Anslået)

10. oktober 2026

Datoer for studieregistrering

Først indsendt

7. maj 2026

Først indsendt, der opfyldte QC-kriterier

14. maj 2026

Først opslået (Faktiske)

18. maj 2026

Opdateringer af undersøgelsesjournaler

Sidste opdatering sendt (Faktiske)

18. maj 2026

Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier

14. maj 2026

Sidst verificeret

1. maj 2026

Mere information

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IPD will not be shared due to patient privacy and confidentiality concerns.

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