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Background: We aimed to validate and to refine current recurrent venous thromboembolism (VTE) risk classification., Methods: We performed a post hoc analysis of a multicentre cohort including 1881 patients with a first symptomatic VTE prospectively followed after anticoagulation discontinuation. The primary objective was to validate the International Society of Thrombosis and Haemostasis (ISTH) risk classification in predicting recurrence risk. The secondary objective was to evaluate a refined ISTH classification based on the recurrence risk estimate for each individual risk factor., Results: During a 4.8-year median follow-up after anticoagulation discontinuation, symptomatic recurrent VTE occurred in 230 patients (12.2%). Based on the ISTH classification, patients with unprovoked VTE or VTE with minor or major persistent risk factors had a 2-fold increased recurrence risk compared with those with VTE and major transient risk factors. Recurrence risk was not increased in patients with minor transient factors (hazard ratio (HR) 1.31, 95% CI 0.84-2.06). Individual risk factors analysis identified hormone-related VTE (pregnancy: HR 0.26, 95% CI 0.08-0.82; oestrogens: HR 0.25, 95% CI 0.14-0.47) and amyotrophic lateral sclerosis (HR 5.84, 95% CI 1.82-18.70). After reclassification of these factors as major transient for the former and major persistent for the latter, the modified ISTH classification allowed us to accurately discriminate between patients at low risk of recurrence ( i.e. with major transient risk factors) and those at high risk of recurrence ( i.e. without major transient risk factors)., Conclusions: Among patients who stopped anticoagulation after a first VTE, a refined ISTH classification based on recurrence risk intensity of individual factors allowed discrimination between patients at low recurrence risk, including hormonal exposure in women, and patients at high recurrence risk., Competing Interests: Conflict of interest: D. Jimenez has served as an advisor or consultant for Bayer HealthCare Pharmaceuticals, Boehringer Ingelheim, Bristol-Myers Squibb, Daiichi Sankyo, Leo Pharma, Pfizer, ROVI and Sanofi; served as a speaker or a member of a speakers’ bureau for Bayer HealthCare Pharmaceuticals, Boehringer Ingelheim, Bristol-Myers Squibb, Daiichi Sankyo, Leo Pharma, ROVI and Sanofi; received grants for clinical research from Daiichi Sankyo, Sanofi and ROVI. E. Le Moigne reports having received research grants from Leo Pharma. C. Leroyer reports having received research grant support from Pfizer and fees for board memberships or symposia from Bayer and AstraZeneca and having received travel support from Bayer, Daiichi Sankyo, Leo Pharma, Intermune and Actelion. K. Lacut reports having received personal fees from Bayer Health Care, Bristol-Myers Squibb and Boehringer Ingelheim. F. Couturaud reports having received research grant support from Pfizer and fees for board memberships or symposia from Bayer, Bristol-Myers Squibb/Pfizer and AstraZeneca, and having received travel support from Bayer, Bristol-Myers Squibb/Pfizer, Boehringer Ingelheim, Leo Pharma and Actelion. The remaining authors declare no conflict of interest related to this research., (Copyright ©The authors 2022. For reproduction rights and permissions contact permissions@ersnet.org.)

Background: The length of hospital stay (LOS) for acute pulmonary embolism (PE) varies considerably. Whether the upfront use of a PE prognostic assessment and management pathway is effective in reducing the LOS remains unknown., Methods: We conducted a randomised controlled trial of adults hospitalised for acute PE: patients were assigned either to a prognostic assessment and management pathway involving risk stratification followed by predefined criteria for mobilisation and discharge (intervention group) or to usual care (control group). The primary end-point was LOS. The secondary end-points were the cost of prognostic tests and of hospitalisation, and 30-day clinical outcomes., Results: Of 500 patients who underwent randomisation, 498 were included in the modified intention-to-treat analysis. The median LOS was 4.0 days (interquartile range (IQR) 3.7-4.2 days) in the intervention group and 6.1 days (IQR 5.7-6.5 days) in the control group (p<0.001). The mean total cost of prognostic tests was EUR 174.76 in the intervention group, compared with EUR 233.12 in the control group (mean difference EUR -58.37, 95% CI EUR -84.34- to -32.40). The mean total hospitalisation cost per patient was EUR 2085.66 in the intervention group, compared with EUR 3232.97 in the control group (mean difference EUR -1147.31, 95% CI EUR -1414.97- to -879.65). No significant differences were observed in 30-day readmission (4.0% versus 4.8%), all-cause mortality (2.4% versus 2.0%) or PE-related mortality (0.8% versus 1.2%) rates., Conclusions: The use of a prognostic assessment and management pathway was effective in reducing the LOS for acute PE., Competing Interests: Conflict of interest: D. Jiménez has served as an advisor or consultant for Bayer HealthCare Pharmaceuticals, Boehringer Ingelheim, Bristol-Myers Squibb, Daiichi Sankyo, Leo Pharma, Pfizer, ROVI and Sanofi; served as a speaker or a member of a speakers’ bureau for Bayer HealthCare Pharmaceuticals, Boehringer Ingelheim, Bristol-Myers Squibb, Daiichi Sankyo, Leo Pharma, ROVI and Sanofi; and has received grants for clinical research from Daiichi Sankyo, Sanofi and ROVI. Conflict of interest: C. Rodríguez has nothing to disclose. Conflict of interest: F. León has nothing to disclose. Conflict of interest: L. Jara-Palomares has served as an advisor or consultant for Actelion Pharmaceuticals, Bayer HealthCare Pharmaceuticals, Leo Pharma, Menarini, Pfizer, GSK and ROVI. Conflict of interest: R. López-Reyes has nothing to disclose. Conflict of interest: P. Ruiz-Artacho has nothing to disclose. Conflict of interest: T. Elías has nothing to disclose. Conflict of interest: R. Otero has served as an advisor or consultant for Bayer HealthCare Pharmaceuticals, Leo Pharma, Janssen Pharmaceutical Companies, Merck Sharp & Dohme Corp, ROVI and Sanofi; and received grants for clinical research from Leo Pharma and Bayer Hispania SL. Conflict of interest: A. García-Ortega has nothing to disclose. Conflict of interest: A. Rivas-Guerrero has nothing to disclose. Conflict of interest: J. Abelaria has nothing to disclose. Conflict of interest: S. Jiménez has nothing to disclose. Conflict of interest: A. Muriel has nothing to disclose. Conflict of interest: R. Morillo has nothing to disclose. Conflict of interest: D. Barrios has nothing to disclose. Conflict of interest: R. Le Mao has nothing to disclose. Conflict of interest: R.D. Yusen has received research funding from Bayer HealthCare Pharmaceuticals, Bristol-Myers Squibb, Pfizer and Portola in the past 3 years; and has served as a consultant for Bayer HealthCare, Inc., Bristol-Myers Squibb, GlaxoSmithkline, Janssen, Johnson and Johnson, Ortho Pharmaceuticals, Organon, Pfizer, Portola, Sanofi and SCIOS in the past 3 years. Conflict of interest: B. Bikdeli reports that he is a consulting expert, on behalf of the plaintiff, for litigation related to two specific brand models of inferior vena cava filters. Conflict of interest: M. Monreal has served as an advisor or consultant for Bayer HealthCare Pharmaceuticals, Daiichi Sankyo, Leo Pharma and Sanofi; served as a speaker or a member of a speakers’ bureau for Bayer HealthCare Pharmaceuticals, Daiichi Sankyo, Leo Pharma and Sanofi; and received grants for clinical research from Sanofi and Bayer. Conflict of interest: J.L. Lobo has nothing to disclose., (Copyright ©The authors 2022. For reproduction rights and permissions contact permissions@ersnet.org.)

Background: Improved prediction of the risk of major bleeding in patients with acute pulmonary embolism ( PE ) receiving systemic thrombolysis is crucial to guide the choice of therapy., Methods: The study included consecutive patients with acute PE who received systemic thrombolysis in the RIETE registry. We used multivariable logistic regression analysis to create a risk score to predict 30-day major bleeding episodes. We externally validated the risk score in patients from the COMMAND VTE registry. We also compared the newly created risk score against the Kuijer and RIETE scores., Results: Multivariable logistic regression identified four predictors for major bleeding: recent major B leeding (3 points), A ge >75 years (1 point), active C ancer (1 point), and S yncope (1 point) ( BACS ). Among 1172 patients receiving thrombolytic therapy in RIETE, 446 (38%) were classified as having low-risk (none of the variables present, 0 points) of major bleeding according to the BACS score, and the overall 30-day major bleeding rate of this group was 2.9% (95% CI, 1.6-4.9%), compared with 44% (95% CI, 14-79%) in the high-risk group (>3 points). In the validation cohort, 51% (149/290) of patients were classified as having low-risk, and the overall 30-day major bleeding rate of this group was 1.3%. In RIETE, the 30-day major bleeding event rates in the Kuijer and RIETE low-risk stratum were 5.3% and 4.4%, respectively., Conclusions: The BACS score is an easily applicable aid for prediction of the risk of major bleeding in the population of PE patients who receive systemic thrombolysis., (Copyright ©ERS 2020.)

We aimed to assess the risk of recurrent venous thromboembolism (VTE) in patients with chronic obstructive pulmonary disease (COPD) following cessation of anticoagulation therapy.In a prospective cohort of 1468 patients with a documented episode of VTE, followed for up to 5 years after cessation of anticoagulation therapy, the diagnosis of COPD was confirmed in 136. The main outcome was recurrent VTE. The secondary outcome was overall mortality. Univariate and multivariate analyses were performed to identify the risk factors of recurrence.Of the 1468 patients included, recurrent VTE was observed in 306 (34 with COPD and 272 without) during a median follow-up period of 36.5 months. The incidence rate of recurrent VTE was 9.1% (95% CI 6.5-12.8) for COPD patients and 7.0% (95% CI 6.2-7.9) for non-COPD patients. COPD was not associated with an increased risk of VTE recurrence on univariate or multivariate analyses (hazard ratio: 1.0 (95% CI 0.7-1.4)). The risk of death, adjusted for demographic and clinical characteristics, showed no increase in COPD patients, as compared to non-COPD patients.In patients with COPD who had an acute episode of VTE, the risk of recurrent VTE was not any higher than that in non-COPD patients., Competing Interests: Conflict of interest: None declared., (Copyright ©ERS 2017.)