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Background Direct oral anticoagulants (DOAC) are first line treatment for pulmonary embolism (PE). Treatment of acute PE is traditionally hospital based and associated with high costs, in spite of recent guidelines suggesting outpatient treatment for low-risk patients. The aims of this study were to evaluate potential cost savings with outpatient DOAC treatment of patients with low risk PE compared to DOAC treatment of low risk PE patients in hospital. Methods A retrospective comparatory multicenter cohort study in patients with low risk PE (simplified pulmonary severity index [sPESI]) ≤ 1 admitted to the eight hospitals in Sweden´s southernmost healthcare region during 2013-2015, and treated with DOAC. Local criteria guiding outpatient treatment had been used, and sPESI was calculated retrospectively. Health care costs were analysed in the 223 (44%) patients treated as outpatients and the 287 (56%) treated in hospital. Results Total cost per patient was 7334 EUR in the inpatient group, and 2088 EUR in the outpatient group (p

Anticoagulant treatment of acute pulmonary embolism (PE) has traditionally been hospital-based. The lesser need for monitoring with the increasingly used direct acting oral anticoagulants (DOAC) in comparison to warfarin potentially facilitates outpatient treatment of PE with these drugs. This study aimed to evaluate efficacy and safety of outpatient treatment of PE with DOAC. We extracted data from the Swedish quality registry for patients on oral anticoagulation (AuriculA) for all 245 patients in the southernmost hospital region in Sweden (1.3 million inhabitants) selected for outpatient treatment with of PE with DOAC during 2013–2015. Comorbidites, risk factors, and simplified pulmonary embolism severity index were evaluated at baseline, and death, recurrent venous thromboembolism (VTE), and bleeding was recorded during 6 months of follow-up. Outpatient treatment was defined as discharge from the emergency department within 24 h. During 6 months of follow-up, one patient died during DOAC therapy, the cause of death was unrelated to VTE. No VTE recurrences occured, whereas, one patient experienced major bleeding, and five patients experienced minor bleedings. Outpatient treatment of PE with DOAC is efficient and safe in selected patients.

Background Upper extremity deep vein thrombosis (UEDVT) constitutes around 10% of all DVT, and can cause both pulmonary embolism (PE) and postthrombotic syndrome (PTS) in the arm. The incidence of secondary UEDVT is increasing due to widespread use of central venous catheters in patients with cancer and other chronic diseases. The safety and efficacy of using new direct acting oral anti coagulants (DOAC) in the treatment of UEDVT has not been systematically evaluated. Our aims were to evaulate efficacy, safety, and risk of recurrence of venous thromboembolism (VTE) during DOAC treatment in UEDVT patients. Methods Data from the Swedish national anticoagulation registry (AuriculA) was retrospectively evaluated for all 55 patients (27 men aged 23–86 years, and 28 women aged 18–75 years) treated with DOAC because of UEDVT between 2012 and 2015 in the southernmost hospital region of Sweden with 1.3 million inhabitants in 2016. Patients were followed for 6 months. Results During 6 months after institution of DOAC treatment there was one recurrence (2%) of DVT during treatment and two (4%) recurrences after cessation of treatment. No patient died, whereas one (2%) suffered a clinically relevant nonmajor bleeding. Conclusion DOAC can be used in the treatment of UEDVT patients with acceptable efficacy and safety.

Background The need for anticoagulation therapy (AC) in patients with subsegmental pulmonary embolism (SSPE) diagnosed by computed tomography of the pulmonary arteries (CTPA) has been questioned, as these patients run low risk for recurrent venous thromboembolism (VTE) during 3 months of follow-up. Whether this applies also to patients with small PE diagnosed with pulmonary scintigraphy has not yet been evaluated, however. Methods We therefore retrospectively evaluated 54 patients (mean age 62 ± 19 years, 36 [67 %] women) with small PE diagnosed by ventilation/perfusion singe photon emission computed tomography (V/P SPECT) who did not receive conventional long-term AC. Results More than half of our patients (36[67 %]) received less than 48 h of AC, 11 (20 %) patients were treated for 2–14 days, and 7 (13 %) for 15–30 days. The majority (28 [52 %]) of our patients had a non-low simplified pulmonary emboli severity index (S-PESI), and 7 (13 %) had malignancy. D-dimer was negative in 18 (33 %), positive in 10 (19 %), and not analyzed in 28 (52 %) patients. Phlebography of the lower extremities had been performed with negative result in one patient. During 90 days of follow up no deaths or PE occurred. Seven patients were readmitted to hospital, whereof two (2/54 [4 %]) were diagnosed with deep venous thrombosis (DVT) necessitating AC therapy. Conclusion In conclusion, withholding longterm AC therapy in patients with SSPE diagnosed by V/P SPECT resulted in 4 % risk for recurrence of VTE during 90 days of follow up, and can therefore currently not be recommended.