1. Modified button-Bentall operation for aortic root replacement: the miniskirt technique 
Guido Michielon, MD, Loris Salvador, MD, Uberto Da Col, MD, Carlo Valfrè, MD 
The Annals of Thoracic Surgery 
Volume 72, Issue 3, Pages S1059-S1064 (September 2001)
DOI: /S (01)

2. Fig 1
Miniskirt technique. (A) The aneurysmal aorta has been resected and the coronary buttons prepared. Proximal suture-line construction and composite conduit creation from separate prosthetic valve and vascular graft are accomplished with a single-step maneuver. Interrupted extracardiac mattress sutures sequentially enter the aortic annulus, the valve ring and the vascular graft, approximately 7 mm from its free edge. (B) Proximal hemostasis is secured with a running monofilament sutureline, buttressing aortic remnants, native aortic valve leaflets (when preserved) and graft edge. (C) Coronary reimplantation is accomplished according to button technique in all patients.
The Annals of Thoracic Surgery  , S1059-S1064DOI: ( /S (01) )

3. Fig 2
(A) Kaplan-Meier actuarial survival, according to prosthetic valve type. ▵ = mechanical prostheses; □ = bioprostheses; ○ = overall; dashed lines = overall upper confidence limits (UCL) and lower confidence limits (LCL). (B) Actuarial freedom from reoperation. No further events occurred after 70-month follow-up from modified button-Bentall. ○ = % reoperation free; dashed lines = 95% LCL and UCL. (C) Nomogram of hazard function for death with 70% confidence limits. The x-axis (months after repair) is depicted in a log scale. (D) Nomogram of hazard function for reoperation with 70% confidence limits.
The Annals of Thoracic Surgery  , S1059-S1064DOI: ( /S (01) )