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European Journal of Cardio-Thoracic Surgery, Vol 9, 483-490, Copyright © 1995 by European Association for Cardio-thoracic Surgery
P Biglioli, A Sala, R Spirito, A Parolari, M Agrifoglio, F Alamanni, F Huang, P Gerometta and V Arena
The risk factors for in-hospital mortality and mid-term survival in
patients undergoing composite graft replacement of the aortic root with
reimplant or coronary arteries by a modified button technique were
evaluated with special emphasis on the underlying aortic pathology. Between
1985 and 1993 74 patients underwent replacement of the ascending aorta and
the aortic valve following a modified button technique. The patients were
divided into three groups according to aortic pathology: annuloaortic
ectasia (43.58%), type A dissection (18.24%), and miscellaneous (13.18%).
In-hospital mortality rates were 4.7%, 33.3% and 23.1%, respectively (P =
0.011). Univariate analysis showed that aortic pathology, NYHA class,
emergency operation, redo operation, acute aortic dissection, preoperative
cardiogenic shock, preoperative cardiac tamponade, longer cardiopulmonary
bypass (CPB) and aortic cross-clamp times, and the need of femoral vein or
femoral artery cannulation at intervention had univariate influence on in-
hospital mortality. Multivariable stepwise logistic regression analysis
identified CPB time odds ratio (OR) = 1.021/min, P = 0.007), the need of
femoral vein cannulation at intervention (OR= 4.85, P = 0.008) and
preoperative cardiac tamponade (OR = 3.11, P = 0.07) as independent
predictors of in-hospital death. Follow-up ranged from 1 to 98 months (mean
39 +/- 30 months) with an actuarial survival rate of 75 +/- 9%, 52 +/- 13%
and 67 +/- 14% at 5 years in annuloaortic ectasia, type A dissection, and
miscellaneous patients, respectively (P = 0.18); when survival was
evaluated in hospital survivors only, Kaplan-Meier survival rates were 77
+/- 9%, 79 +/- 14% and 89 +/- 10% at 5 years (P = 0.87). Comparing survival
of annuloaortic ectasia patients (5-year survival 75 +/- 9%) versus
survival of all other patients pooled together (5-year survival 55 +/-
11%), there was a statistically significant difference (P < 0.05); such
a difference was no longer significant when comparing hospital survivors
alone (5-year survival rate 77 +/- 9% annuloaortic ectasia patients vs 79
+/- 12% all other patients P = 0.61). Although aortic root replacement
carries higher in- hospital mortality in some high-risk subgroups of
patients, mid-term survival seems to be less affected by aortic pathology;
high-risk patients are expected to have an out-hospital outcome comparable
to the low-risk ones.
ARTICLES
Composite valve graft replacement of the ascending aorta and the aortic valve by a modified button technique: the influence of aortic pathology on early mortality and late survival
Department of Cardiac Surgery, University of Milano Centro Cardiologico- Fondazione I Monzino IRCCS, Italy.
This article has been cited by other articles:
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K. Bayegan, H. Domanovits, M. Schillinger, M. Ehrlich, G. Sodeck, and A.N. Laggner Acute type A aortic dissection: the prognostic impact of preoperative cardiac tamponade Eur. J. Cardiothorac. Surg., December 1, 2001; 20(6): 1194 - 1198. [Abstract] [Full Text] [PDF] |
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