Table 2.

Characteristics of Patients with Postoperative Delirium After Aortic Valve Replacement

Characteristics	SAVR (N=77)	TAVR (N=110)	P value
Postoperative delirium, n (%)	39 (50.7)	28 (25.5)	<0.001
Delirium duration,* days, mean ± SD	2.2 ± 1.5	3.4 ± 2.8	0.04
Delirium severity*,†			0.10
Mild delirium, n (%)	26 (66.7)	13 (46.4)
Severe delirium, n (%)	13 (33.3)	15 (53.6)
Maximum CAM-S score,*, ‡ mean ± SD	8.4 ± 2.2	9.5 ± 3.1	0.09
Mean CAM-S score,*, ‡ mean ± SD	4.5 ± 1.7	5.7 ± 2.2	0.01
Delirium motoric type*			0.43
Mixed or hyperactive type, n (%)	7 (17.9)	7 (25.0)
Hypoactive type, n (%)	23 (59.0)	12 (42.9)
Normoactive type, n (%)	9 (23.1)	9 (32.1)

Abbreviations: CAM, Confusion Assessment Method; CAM-S, Confusion Assessment Method-Severity; SAVR, surgical aortic valve replacement; SD, standard deviation; TAVR, transcatheter aortic valve replacement

^*Data were presented for patients who developed postoperative delirium.

^†Delirium severity was defined as mild if CAM-S maximum score ≤9 and severe if CAM-S maximum score >9 (CAM-S score 9 was the median score of all available assessments in patients with delirium).

^‡The maximum and mean CAM-S scores were calculated from all available assessments in patients with delirium.