Incentive Spirometry vs Diaphragmatic Breathing in Post-PCI Patients
Official title: Effects of Incentive Spirometry Versus Diaphragmatic Breathing on Oxygen Saturation and Heart-rate Variability in Post Percutaneous Coronary Intervention Patients
Run by Foundation University Islamabad · NCT07867431 · Data updated 2026-11-12
This trial tests whether incentive spirometry or diaphragmatic breathing better maintains oxygen levels and heart-rate variability after a PCI procedure in stable patients.
Quick facts
| Study type | Interventional |
|---|---|
| Ages | 44 Years to 75 Years |
| Sex | All |
| Enrollment | 36 (estimated) |
| Sponsor | Foundation University Islamabad Academic / other |
| Locations | 1 site (Rawalpindi) |
| Status | Recruiting |
| Started | February 11, 2026 |
| Main results expected | December 15, 2026 |
| Study ends | December 15, 2026 |
| Registry record updated | October 9, 2026 |
| Trial ID | NCT07867431 on ClinicalTrials.gov |
Is this trial a fit for you?
✓Likely a good fit
Adults aged 44-75 who are hemodynamically stable after PCI, with oxygen saturation >92% and the ability to follow instructions.
✕Probably not a fit
Patients with ongoing ischemia, unstable vitals, significant arrhythmias, or devices with pacing dependency may not benefit.
A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.
What this trial studies
This randomized, parallel-group study compares two breathing therapies in adults who have recently undergone PCI and are hemodynamically stable. Participants will receive either incentive spirometry or diaphragmatic breathing for two consecutive days, with supervised sessions three times daily, in addition to standard post-PCI care. Outcomes include oxygen saturation and heart-rate variability measured at baseline and after the 2-day intervention. The trial is conducted at Foundation University Islamabad, Rawalpindi, with safety monitoring and predefined criteria for stopping the intervention if needed.
Why it matters
Potential benefit: If successful, the preferred breathing technique could help optimize oxygenation and autonomic function after PCI.
How similar studies have gone: Previous research in respiratory therapies after cardiac procedures suggests potential benefits of structured breathing exercises, but direct comparisons between incentive spirometry and diaphragmatic breathing in post-PCI patients are limited.
Who can join: the full rules
Show full inclusion / exclusion criteria
Inclusion Criteria: * Adults aged 44-75 years * Hemodynamically stable post-PCI patients with systolic blood pressure\>90 mmHg, diastolic BP 50-100mmHg Heart-rate 60-100 beats/min and no ongoing chest pain or signs of acute clinical instability. * Oxygen saturation \>92% on room air * Able to follow simple verbal instructions and perform the breathing exercises. * Ejection Fraction \>35% Exclusion Criteria: * Ongoing myocardial ischemia, unstable angina, significant arrythmia or requirement for inotropic/vasopressor support. * Cardiogenic shock or severe heart failure (NYHA class IV) * Recent thoracic surgery or chest wall injury limiting rib expansion or deep breathing. * Cardiac implantable electronic device (pacemaker/ICD) with pacing dependency or an implanted ventricular assist device. * Severe cognitive impairment * Uncontrolled hypertension(SBP\>180 mmHg or DBP\>110 mmHg) or bradycardia\<50 beats/min. * Severe anemia (Hb\<8g/dL)
Where it's running
-
Foundation University Islamabad
Rawalpindi, Pakistan Recruiting
Study contacts
- Study coordinator: Iftikhar Ahmad, MS-CPPT
- Email: iftkharrahmad014@gmail.com
- Phone: 0334-1920385
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How to take part
- Review the eligibility criteria above with your treating physician.
- Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
- Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.