One of the most common postoperative complications after open cardiac surgery is fluid accumulation between the pleural membranes or in the pericardial sac. This study investigates the consequence of such fluid accumulations on physical performance, recovery-time, cardiac and respiratory complications, and quality of life. Half of the participants will be followed closely and offered fluid drainage at a low threshold, and half of the participants will follow the current postoperative regimen.

Introduction:

Knowledge concerning the impact of pleural and pericardial effusions on physical performance, recovery-time, cardiac and respiratory complications, and quality of life after open cardiac surgery is scarce. A more aggressive approach towards effusions has been suggested, but further studies are needed.

Objectives:

1. to determine the size of pleural and pericardial effusion that results in at least 30% reduction of physical performance in the 6-minute walk test.
2. to compare the improvement in physical performance between the intervention group and the control group, measured from baseline to day 30 after surgery.

Materials and methods:

A randomised controlled intervention trial. Patients admitted for open cardiac surgery (aortic valve surgery, coronary artery bypass graft surgery and combinations) will be randomised into either an intervention group or a control group. The intervention group will be followed with physical tests and ultrasonic examination the month following surgery. Pleural or pericardial effusion of a predefined size will be drained. The control group will follow the current postoperative regimen.

Inclusion Criteria:

• Age >18 years.
• Admitted for elective aortic valve surgery, coronary artery bypass graft surgery or combinations.
• Be able to understand the written and oral patient information and to give informed consent.

Exclusion Criteria:

• Surgical combinations involving the mitral valve since they are already examined with full echocardiography prior to discharge, which may influence protocol driven decisions.
• Simultaneous participation in any other clinical intervention trial