Date of Award


Document Type

Open Access Thesis

Degree Name

Master of Medical Science (MMSc)

First Advisor

Jonathan Puchalski, MD, MEd


Coronary artery bypass graft surgery is a high-risk surgical intervention and commonly accounts for hospital readmissions within 30 days of discharge. Pleural effusions that require therapeutic thoracentesis are a reason for many of the readmissions. Studies have examined the adverse clinical effects that large volume pleural effusions have in these patients. However, effusion volume itself may have little influence on patient outcomes. Complications occur without close monitoring and drainage. In this study, we propose a randomized controlled trial to determine whether frequent follow-up and drainage of pleural effusions ≥320 ml can improve the need for rehospitalization and influence 6-minute walk tests in patients undergoing coronary artery bypass surgery. We hypothesize that these two interventions will decrease hospital readmission rates and improve 6-minute walk tests in patients within 30 days of hospital discharge. Insights from this study may ultimately help improve the management of coronary artery bypass graft patients.

Open Access

This Article is Open Access