Efficacy of forced expiratory techniques on wound drainage in post coronary artery bypass grafting patients
Back ground: Coronary Artery Bypass Grafting is a surgery to replace blocked arteries with healthy blood vessels and failure to fully evacuate a hemothorax post coronary artery bypass graft can lead to development of fibrothorax. Fibrothorax restricts the lung, and can begin as early as 1-2 weeks after the surgical procedure. Patients with fibrothorax report initial dyspnea. For mechanically ventilated patients, progressive difficulty with adequate ventilation due to restrictive lung mechanics can be seen.