1. On-pump versus off-pump coronary artery bypass grafting: impact on postoperative renal failure requiring renal replacement therapy 
Jan Bucerius, MD, Jan F Gummert, MD, PhD, Thomas Walther, MD, PhD, Dierk V Schmitt, MD, Nicolas Doll, MD, Volkmar Falk, MD, PhD, Friedrich W Mohr, MD, PhD 
The Annals of Thoracic Surgery 
Volume 77, Issue 4, Pages (April 2004)
DOI: /S (03)

2. Fig 1
Prevalence of postoperative continuous renal replacement therapy (postop. CRRT) according to the type of coronary artery bypass grafting in the total study population and in patients with preoperative renal disease. ■ = total study population; □ = patients with preoperative renal disease. (CABG = conventional coronary artery bypass grafting; OPCAB = off-pump coronary artery bypass grafting.)
The Annals of Thoracic Surgery  , DOI: ( /S (03) )

3. Fig 2
Intensive care unit (ICU) stay (days), total postoperative hospital stay (days), and 30-day mortality rate in patients with and without postoperative continuous renal replacement therapy (CRRT). Dot 30-day mortality rate.
The Annals of Thoracic Surgery  , DOI: ( /S (03) )