A versatile technique for aortic root replacement without pre-manufactured composite graft: a 12-year experience.
OBJECTIVE
Replacement of the aortic root is the treatment of choice for aneurysmal dilatation. Many modifications of the Bentall technique have been described, as have valve-sparing procedures. The study aim was to determine the outcome of a versatile modification of composite replacement that has been adopted over the past 12 years. Separate graft and prosthetic valve components were used to allow freedom of valve choice and the use of an appropriately sized graft for the distal aortic anastomosis.


METHODS
Between January 1990 and March 2002, 59 patients (45 males, 14 females; mean age 56 +/- 14 years) underwent aortic root replacement using this technique. Indications for surgery were elective in 35 patients and emergent (usually type A aortic dissection) in 24. The range of valve prostheses used, their size, and the size of aortic graft used in each case was assessed. Durations of ischemia and cardiopulmonary bypass were recorded, as was postoperative blood loss and subsequent patient progress, including valve-related events, perioperative mortality and actuarial survival.


RESULTS
A wide range of aortic graft sizes was combined with both mechanical and tissue valves (from 1-7 mm larger in diameter). Median postoperative blood loss was 550 ml (IQR 400-800 ml). Perioperative mortality was 5.1%. There were no valve- or technique-related deaths, and the median actuarial survival was 13.17 years. During a 12-year follow up there were no proximal aortic reoperations.


CONCLUSIONS
This technique had favorable perioperative mortality, produced a secure proximal suture line, and allowed the surgeon free choice of both valve type and size of aortic graft. This minimized tension at the distal suture line, and produced good hemostasis, especially in those patients with fragile dissected tissues.
Halstead
James C
JC
Department of Cardiothoracic Surgery, Papworth Hospital, Cambridge, UK. jameschalsread@yahoo.co.uk
Lim
Eric
E
Ali
Ayyaz
A
Tsui
Steven
S
Large
Stephen
S
Wallwork
John
J
Dunning
John
J
D000328:Adult; D000368:Aged; D000784:Aortic Dissection / Q000150:complications / Q000601:surgery*; D001011:Aorta; D001014:Aortic Aneurysm / Q000150:complications / Q000601:surgery*; D001021:Aortic Valve / Q000601:surgery; D001807:Blood Vessel Prosthesis; D019917:Blood Vessel Prosthesis Implantation / Q000295:instrumentation; D002318:Cardiovascular Diseases / Q000601:surgery; D005260:Female; D006349:Heart Valve Diseases / Q000150:complications / Q000601:surgery*; D006350:Heart Valve Prosthesis; D019918:Heart Valve Prosthesis Implantation / Q000295:instrumentation; D006801:Humans; D008297:Male; D008875:Middle Aged; D012189:Retrospective Studies; D016019:Survival Analysis; D016896:Treatment Outcome