Table 5.

Mortality rates for timing of surgical therapy.

	Sample size	Elective (> 7 days)	Urgent (1–7 days)	Emergent (< 24 h)
Gott et al. NEJM 1999 (M)a	675	1.5%	2.6%	11.7%
Coady et al. J thorac Surg 1997	230	4.3%	20.5%
Achnek et al. Ann Thorac Surg 2007	506	4.4%	21.6%
Kallenback et al. Circulation 2005	284	1.3%	9.3 ± 2.5%

^a(M) = studies on patients with Marfan syndrome.