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Table 1 Baseline characteristics and duration of anticoagulant (AC) therapy in 54 patients with small pulmonary embolism diagnosed by ventilation/perfusion single photon emission computed tomography (V/P SPECT) who did not receive conventional long-term AC. N(%)

From: Is it safe to withhold long-term anticoagulation therapy in patients with small pulmonary emboli diagnosed by SPECT scintigraphy?

Predisposing factors for thrombosis n(%)  
Malignancy 7 (13)
Oral contraception 1 (2)
Surgery or immobilization 5 (9) (one with malignancy)
Trauma 1 (2)
Previous venous thromboembolism 4 (7)
Pregnancy 2 (4)
Concomitant diseases n(%)  
Congestive heart failure 18 (33)
Chronic obstructive pulmonary disease or asthma 9 (17)
Investigations n(%)  
D-dimer 28 (52), negative in total 18 (33)
NT-proBNP 9 (17), negative in total 8 (15)
Troponin T 28 (52), negative in total 24 (44)
Venous ultrasound or phlebography 1 (2), negative in total 1 (2)
CTPA 17 (31), positive in 6 (11)
Risk stratification n(%)  
sPESI score 0 12 (22)
sPESI score 1 28 (52)
sPESI score 2 11 (20)
sPESI score 3 2 (4)
sPESI score 4 1 (2)
Duration of anticoagulant therapy n(%)  
<48 hours 34 (63)
2–14 days 11 (20)
15–30 days 7 (13)
31–90 days 2 (4)