Table 6.

Outcome of patients with different risks of PE.

	Acute thrombus			Chronic thrombus
	Low	Intermediate	High	Low	Intermediate	High
	(n = 124)	(n = 69)	(n = 12)	(n = 30)	(n = 25)	(n = 3)
Echocardiography within one week	63	38	4	5	15	0
Velocity of TR >2.9 (m/s)	14 (22%)	25 (66%)	1 (25%)	0 (0%)	15 (100%)	0 (0%)
Echocardiography >3 months later	57	39	4	7	15	0
Velocity of TR >2.9 (m/s)	1 (2%)	4 (10%)	0 (0%)	2 (29%)	14 (93%)	0 (0%)
Chest CT >3 months later	46	33	1	7	11	1
Residual PE	16 (35%)	14 (42%)	0 (0%)	5 (71%)	11 (100%)	1 (100%)
Recurrent PE	4 (3.2%)	4 (5.8%)	0 (0%)	1 (3%)	0 (0%)	0 (0%)
Death due to PE or RV failure	0 (0%)	0 (0%)	5 (42%)	0 (0%)	2 (8%)	3 (100%)
Death due to other etiology	49 (40%)	21 (30%)	0 (0%)	16 (53%)	11 (44%)	0 (0%)

CT: computed tomography; PE: pulmonary embolism; RV: right ventricle; TR: tricuspid regurgitation.