Effectiveness of Incentive Spirometer and Diaphragmatic Breathing Exercise on ABG Measures in Post-CABG Patients
- Conditions
- Post Coronary Artery Bypass Grafting
- Interventions
- Other: Incentive spirometer plus Chest physiotherapyOther: Diaphragmatic breathing exercise plus Chest physiotherapy
- Registration Number
- NCT05684679
- Lead Sponsor
- King Saud University
- Brief Summary
The rate of pulmonary complications following Coronary artery bypass graft (CABG) is high. Early pulmonary exercises are important in preventing this complication following cardiac surgery. This study aimed to investigate the effectiveness of incentive spirometer (IS) and diaphragmatic breathing exercise (DBE) on the alteration of arterial blood gas (ABG) measures. The study was based on a two-arm, parallel-group, randomized comparative design. Thirty patients who underwent CABG enrolled in the study based on inclusion and exclusion criteria, randomly allocated into either of the groups, IS Group or DBE Group. IS Group and DBE Group underwent chest physiotherapy with IS and DBE, respectively. ABG measures, including PH of blood, partial pressure of arterial oxygen molecule (PaO2), and partial pressure of arterial carbon dioxide (PaCO2), was assessed using an ABG analyzer at baseline (pre-operation), day1 post-operation, and day2 post-operation. The significance level was kept constant for all statistical analyses at 95%.
- Detailed Description
Coronary artery bypass graft (CABG) is one of common treatment procedures performed worldwide. Evidence suggest that every year more than 1 million CABG procedure has been performed. Pulmonary complications are one of the most common consequence post CABG.
The incidence of atelectasis after heart operation with cardiopulmonary bypass is still 80-84% in spite of careful fluid \& respiratory management. The basic problem in respiratory care of post-surgical patient is atelectasis leading to hypoxemia causing alteration in arterial blood gases (ABGs). Associated with atelectasis are widening alveolar - arterial O2 gradient (as right to left intrapulmonary shunting increases) decrease ventilation perfusion ratio, decrease functional residual capacity and decrease compliance. Chest physiotherapy is routinely used after major abdominal \& cardiothoracic surgery to prevent these pulmonary complications following operation.
To date, there is a variable view about the effectiveness of these two primary breathing exercise techniques (incentive spirometer and diaphragmatic breathing exercise). 10-12 Hence an effort to systematically study the effectiveness of these is attempted. Thus, the current study aimed to determine the efficacy of incentive spirometer and diaphragmatic breathing exercises in addition to conventional chest physiotherapy on alteration of ABG measures in patients with post CABG. This study hypothesized that there will be a significant difference between the effect of the IS and DBE on ABG alteration in post CABG patients.
Recruitment & Eligibility
- Status
- COMPLETED
- Sex
- All
- Target Recruitment
- 30
- The patient with post-CABG,
- Aged between 40 and 60 years,
- Had forced expiratory volume in 1 second (FEV1) <70% of predicted value,
- Showed FEV1/forced vital capacity (FVC) ratio >0.8,
- Weight equal or exceeded the ideal body weight by less than 20%, and
- Patient co-operation.
- Aged more than 60 years,
- Weight equal or exceeded the ideal body weight by more than 20%,
- Post-operative respiratory treatment exceeding 20 hours,
- History of Chronic obstructive pulmonary disease (COPD) /thoracic surgery including CABG,
- had thoracic anomalies/unstable angina,
- Developed hemodynamic complication, and
- Non-cooperative/neurological debilitated patient.
Study & Design
- Study Type
- INTERVENTIONAL
- Study Design
- PARALLEL
- Arm && Interventions
Group Intervention Description IS Group Incentive spirometer plus Chest physiotherapy • Patients were instructed to utilize an incentive spirometer in the sitting or half lying position as taught preoperatively. * 3 to 5 consecutive breath with the spirometer were interspersed between period of quite breathing. * Duration 10-15 minutes/session. DBE Group Diaphragmatic breathing exercise plus Chest physiotherapy • Patients were advised to do diaphragmatic breathing exercise in the sitting or half lying position as taught preoperatively. * 3 to 5 consecutive deep breath were interspersed between period of quite breathing. * Duration 10-15 minutes/session.
- Primary Outcome Measures
Name Time Method Partial pressure of Arterial Oxygen molecule (PaO2) 3 Days PaO2 was assessed using an ABG analyzer machine
PH of Blood 3 Days PH of blood was assessed using an ABG analyzer machine
Partial pressure of Arterial Carbon dioxide molecule (PaCO2) 3 Days PaCO2 was assessed using an ABG analyzer machine
- Secondary Outcome Measures
Name Time Method
Trial Locations
- Locations (1)
Rehabilitation Research Chair, Department of Rehabilitation Sciences, king Saud University
🇸🇦Riyadh, Riyadh 11433, Saudi Arabia