Table 3. Clinical presentation.

Variable	Marfan syndrome	No Marfan syndrome	P value
Hours from onset of symptoms to diagnosis, median (IQR)	4.1 (2.3–9.1)	5.0 (3.0–12.0)	0.014
Hours from onset of symptoms to intervention for type A dissections, median (IQR)	8.2 (5.5–28.1)	9.5 (6.0–20.5)	0.117
Shock	19 (8.3%)	352 (6.5%)	0.293
Coma	13 (5.3%)	475 (7.9%)	0.132
Congestive heart failure	19 (8.2%)	306 (5.4%)	0.074
Aortic insufficiency grade 3 or 4	30 (14.6%)	336 (7.0%)	<0.001
Cardiac tamponade	15 (6.3%)	467 (8.2%)	0.309
Myocardial complications*	17 (7.8%)	389 (7.2%)	0.719
Cerebrovascular accident	3 (1.3%)	210 (3.8%)	0.051
Spinal cord ischemia	4 (1.6%)	124 (2.1%)	0.633
Visceral ischemia	12 (5.1%)	294 (5.1%)	0.968
Acute renal failure	13 (5.5%)	629 (11.0%)	0.007
Limb ischemia	16 (6.5%)	753 (12.5%)	0.005

*, myocardial complications include: acute myocardial infarction, myocardial ischemia, preoperative low output syndrome. IQR, interquartile range.