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Table 5 Multivariable cox proportional hazard regression model for risk factor analysis of long-term survival

From: Extensive aortic surgery in acute aortic dissection type A on outcome – insights from 25 years single center experience

Variable p-value HR
SCRa .182 .509 (.19–1.37)
SCR + TARa .451 .823 (.496–1.37)
AVSa .110 .739 (.51–1.07)
COMPa .152 .835 (.65–1.07)
COMP+TARa .248 .860 (.67–1.11
Sexa .683 .928 (.65–1.33)
Agea .000 1.028 (1.01–1.04)
Circulatory arrest .000 2.891 (1.60–5.2)
Bypass time .001 1.007 (1.00–1.01
Operation time .019 .997 (.99–1.00)
General malperfusion .029 1.530 (1.05–2.24)
Hemodialyses .031 1.701 (1.05–2.76)
Aortic cross clamp times .141 .996 (.99–1.00)
Previous cardiothoracic surgery .160 1.410 (.87–2.28)
Myocardial infarction .263 1.526 (.73–3.2)
Sepsis .657 1.164 (.60–2.27)
  1. AVS aortic valve sparing, CI confidence interval, COMP composite replacement, HR hazzard ratio, SCR supracommissural replacement, TAR total arch replacement
  2. aVariables were fixed in the model for adjustment. General malperfusion, sepsis and myocardial infarction diagnosed prior initial surgery; hemodialysis required postoperatively