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Active, not recruitingNCT06705556CABG ACBT ABGUpdated Nov 26, 2024

Effect of Active Cycle of Breathing Technique as Add on to Routine Chest Physical Therapy on Respiratory Parameters in Coronary Artery Bypass Graft Patients

An interventional study of Active cycle of breathing technique, incentive spirometer, percussion, 3-minute of walking and incentive spirometer, percussion, 3-minute of walking in Coronary Artery Bypass Graft, sponsored by Sadaf Bukhari. Active, not recruiting at 2 sites in Pakistan. Open to participants aged 30 Years to 65 Years. Per ClinicalTrials.gov, last updated 2024-11-26.

Sponsored by Sadaf Bukhari · Not applicable, Interventional, and Supportive care

From the registry’s dates

  • Primary completion was expected by Dec 2024, 1 year 10 months ago, but the record still lists the study as active, not recruiting.
  • Registered 8 months after the study started (first participant enrolled Mar 2024, registered Nov 2024).
Phase
Not applicable
Study type
Interventional
Enrollment
72
Allocation
Randomized
Ages
30 Years to 65 Years
Sex
All
01

Study summary

A controlled trial was conducted to determine the effect of the active cycle of breathing technique (ACBT) in improving respiratory parameters after coronary artery bypass graft surgery. The main aim of this study was to determine the effects of pre and postoperative active cycle of breathing technique (ACBT) in coronary artery disease patients undergoing coronary artery bypass graft surgery in improving respiratory parameters such as arterial blood gas (ABG), oxygen saturation (SpO2) and respiratory rate. The intervention group performed an active cycle of breathing technique with routine chest physical therapy while the control group performed routine chest physical therapy. Arterial blood gas (ABG), oxygen saturation (SpO2), and respiratory rate were measured at baseline and five days after surgery, every 2 hours on postoperative days 1, 2, and 3 and 4 hours on days 4 and 5.

Participants in the intervention group performed preoperative routine chest physical therapy sessions were followed as:

  • Incentive spirometry, 3 sessions per day, 10 repetitions
  • Percussions, 3 sessions per day, 20 repetitions
  • 3-minutes walking, 2 sessions per day
  • ACBT, 3 sessions per day

The preoperative chest physiotherapy treatment plan was continued after CABG surgery. In addition to these, the following were included postoperatively:

  • Nebulization, 3 sessions per day
  • 3 minutes of walking, 2 sessions per day
  • ACBT, 3 sessions per day While participants in the control group performed the same pre and postoperative sessions except ACBT.
Read the detailed description

This single-blinded randomized controlled trial was conducted at the Faisalabad Institute of Cardiology, Faisalabad, Pakistan, to assess the effects the Active Cycle of Breathing Technique (ACBT) as add on to routine chest physical therapy in the preoperative care of coronary artery bypass graft (CABG) patients. The primary aim was to evaluate ACBT's impact on minimizing postoperative respiratory complications. A secondary aim was to educate patients in the preoperative period to reduce surgery-related stress and support respiratory drive.

Patients with coronary artery disease are generally advised bed rest to manage shortness of breath. However, CABG is an invasive procedure that involves the placement of an endotracheal tube, raising infection risks and leading to weakened respiratory muscles due to ventilation effects. Post-surgery, patients often experience reduced lung volumes and altered arterial blood gases. Adding ACBT to chest physical therapy in the preoperative period is intended to improve ventilation and arterial blood gas levels postoperatively.

The study involved 72 male and female patients, aged 30 to 65, with double or triple-vessel coronary disease and a 10 to 15-year disease history, scheduled for CABG. Screening was performed using a custom questionnaire based on inclusion and exclusion criteria, and non-probability purposive sampling was used to select participants. Patients were randomly assigned to either the intervention or control group using the lottery method. The intervention group received ACBT alongside routine chest physical therapy, while the control group received only standard chest physical therapy, both pre- and postoperatively. Patient confidentiality was maintained through informed consent.

Key study parameters included arterial blood gas (ABG) levels, oxygen saturation (SpO2), and respiratory rate, with ABG samples taken from the brachial and radial arteries and analyzed via an ABG analyzer. SpO2 was measured using a pulse oximeter, and respiratory rate was recorded on a cardiac monitor.

02

Conditions studied

  • Coronary Artery Bypass Graft
03

In context

Lead sponsor

This is the only study on the registry with Sadaf Bukhari as lead sponsor.

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

04

Who can participate

Ages eligible
30 Years to 65 Years
Sexes eligible
All
Accepts healthy volunteers
No

Inclusion criteria

  • Elective coronary artery bypass graft patients
  • The study included both male and female
  • 30 to 65 years old patients were included in this study
  • Adults with stable coronary artery disease for the last 15 years

Exclusion criteria

Exclusion Criteria:

  • Patient with unstable vitals
  • Preoperative pulmonary dysfunction
  • COPD or Emphysema
  • Asthma and Severe atelectasis
  • Renal disorders
  • Connected to the ventilator for more than 48 hours
05

Study design

Phase
Not applicable
Primary purpose
Supportive care
Allocation
Randomized
Intervention model
Factorial assignment
Masking
Single (Outcomes assessor)
Enrollment
72 participants (actual)

Study arms

  • Experimental
    The intervention group

    The intervention group: The intervention group (n=36) was instructed to perform the ACBT with routine chest physical therapy pre and postoperatively. The preoperative chest physical therapy was conducted 3 days before surgery and the postoperative CPT, including ACBT, was performed 3 times in the ICU for up to 5 days after surgery. Preoperative routine chest physical therapy sessions were followed as: * Incentive spirometer, 3 sessions per day, 10 repetitions * Percussions, 3 sessions per day, 20 repetitions * 3-minutes walking, 2 sessions per day * ACBT, 3 sessions per day The preoperative chest physiotherapy treatment plan was continued after CABG surgery. In addition to these, the following were included postoperatively: * Nebulization, 3 sessions per day * 3 minutes of walking, 2 sessions per day * ACBT, 3 sessions per day

    Procedure: Active cycle of breathing technique, incentive spirometer, percussion, 3-minute of walking

  • Experimental
    The control group

    The control group: The routine Chest physical therapy was performed 3 days before surgery at the preoperative bay and 5 days after surgery in the ICU with 3 sessions each day. Preoperative chest physical therapy sessions were followed as: * Incentive spirometer, 3 sessions per day, 10 repetitions. * Percussions, 3 sessions per day, 20 repetitions. * 3-minutes walking, 2 sessions per day The preoperative chest physiotherapy treatment plan was continued after CABG surgery. In addition to these, the following were included postoperatively: * Nebulization, 3 sessions per day * 3-minutes walking, 2 sessions per day

    Procedure: incentive spirometer, percussion, 3-minute of walking

Interventions

  • ProcedureActive cycle of breathing technique, incentive spirometer, percussion, 3-minute of walking

    The intervention group: patients were asked to perform Active cycle of breathing technique as add on to routine chest physical therapy such as Incentive spirometer, percussion, 3-minute of walking 3 days before surgery and five days postoperative. * Incentive spirometry, 3 sessions per day, 10 repetitions * Percussions, 3 sessions per day, 20 repetitions * 3-minutes walking, 2 sessions per day * ACBT, 3 sessions per day the following were included postoperatively: * Nebulization, 3 sessions per day * ACBT, 3 sessions per day

  • Procedureincentive spirometer, percussion, 3-minute of walking

    The control group The routine CPT was performed 3 days before surgery at the preoperative bay and 5 days after surgery in the ICU with 3 sessions each day. Preoperative chest physical therapy sessions were followed as: * Incentive spirometry, 3 sessions per day, 10 repetitions. * Percussions, 3 sessions per day, 20 repetitions. * 3-minutes walking, 2 sessions per day The preoperative chest physiotherapy treatment plan was continued after CABG surgery. In addition to these, the following were included postoperatively: * Nebulization, 3 sessions per day * 3-minutes walking, 2 sessions per day

06

What researchers measure

Primary outcomes

  1. Arterial blood gas

    Arterial Blood Gas (ABG) is a critical test used to evaluate a patient's acid-base balance, oxygenation, and ventilation status by measuring the levels of oxygen (O₂), carbon dioxide (CO₂), and bicarbonate (HCO₃-) in arterial blood.

    Time frame: ABG test was conducted once preoperative for both groups and after surgery every 2 hours on postoperative days 1, 2, and 3, and every 4 hours on days 4 and 5.

Secondary outcomes

  1. oxygen saturation (SpO₂)

    SpO₂ (Oxygen Saturation) is a measurement that estimates the percentage of oxygen-saturated hemoglobin in the blood. SpO₂ monitoring is vital in clinical settings, especially for patients with respiratory or cardiac conditions, during and after surgery.

    Time frame: SpO₂ was measured once preoperative for both groups and after surgery every 2 hours on postoperative days 1, 2, and 3, and every 4 hours on days 4 and 5.

  2. Respiratory rate

    Respiratory rate (RR) refers to the number of breaths a person takes per minute. It is a key vital sign used to assess breathing and overall respiratory function.

    Time frame: Respiratory rate was measured once preoperative for both groups and after surgery every 2 hours on postoperative days 1, 2, and 3, and every 4 hours on days 4 and 5.

07

Study locations

2 sites
  • The University of Faisalabad
    Faisalabad, Punjab 37000, Pakistan
  • Dr Sana Ashraf
    Lahore, Punjab 54000, Pakistan
08

References and documents

Individual participant data

Plan to share: No

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 Nov 26, 2024, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT06705556
Lead sponsor
Sadaf Bukhari
Responsible party
Sadaf Bukhari (Principal investigator, University of Faisalabad) — Sponsor-investigator
First posted
Nov 26, 2024
Start date
Mar 1, 2024
Primary completion
Dec 1, 2024 (estimated)
Completion
Dec 20, 2024 (estimated)
Last update
Nov 26, 2024

Oversight

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

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