Table 3: Net management changes due to focused transthoracic echocardiography performed on 100 patients in the preoperative clinic [6]

Management Change	Decision to perform due to TTE	Descision NOT to perform due to TTE	Net result due to TTE
Cancel surgery	0	10	-10
Cardiology referral	4	10	-6
HDU referral	5	11	-6
Comprehensive TTE	0	67	-67
Less invasive surgery	2	0	+2
Changed anaesthesia	5	0	+5
Intraoperative TOE	1	3	-2
Central venous catheter	3	4	-1
Arterial catheter	9	0	+9
Vasopressor infusion	10	0	+10