Bleeding and thrombotic complications during treatment with direct oral anticoagulants or vitamin K antagonists in venous thromboembolic patients included in the prospective, observational START2-register.
BMJ Open
; 10(11): e040449, 2020 11 27.
Article
en En
| MEDLINE
| ID: mdl-33247017
ABSTRACT
OBJECTIVE:
The proportion and characteristics of Italian patients affected by venous thromboembolism (VTE) treated with direct oral anticoagulants (DOACs) or vitamin K antagonists (VKAs), and complications occurring during follow-up.DESIGN:
A prospective cohort of 2728 VTE patients included in the Survey on anticoagulaTed pAtients RegisTer (START2-Register) from January 2014 to June 2018 was investigated. Characteristics of patients, type of treatment and complications occurring during 2962 years of follow-up were analysed.SETTING:
About 60 Italian anticoagulation and thrombosis centres participated in the observational START2-RegisterPARTICIPANTS:
2728 adult patients with VTE of a lower limb and/or pulmonary embolism (PE), with a follow-up after the initial phase treatment.INTERVENTIONS:
Patients could receive DOACs or VKAs; both prescribed by the National and Regional Health Systems for patients with VTE. OUTCOMESMEASURES:
Efficacy rate of VTE recurrence (all thrombotic complications were also recorded). SAFETY the rate of major and clinically relevant non-major bleeding events.RESULTS:
Almost 80% of patients were treated with DOACs. The prevalence of symptomatic PE and impaired renal function was higher in patients receiving VKAs. Duration of anticoagulation was >180 days in approximately 70% of patients. Bleeding events were similar in both treatment groups. The overall eventuality of recurrence was significantly higher in DOAC cohorts versus VKA cohorts (HR 2.15 (1.14-4.06), p=0.018); the difference was almost completely due to recurrences occurring during extended treatment (2.73% DOAC vs 0.49% VKA, p<0.0001). All-cause mortality was higher in VKA-treated (5.9%) than in DOAC-treated patients (2.6%, p<0.001).CONCLUSION:
Italian centres treat most patients with VTE with DOACs and prefer VKA for those with more serious clinical conditions. Recurrences were significantly more frequent in DOAC-treated patients due to increased incidence after 180 days of treatment, probably due to reduced adherence to treatment. These results underline the importance of structured surveillance of DOAC-treated patients with VTE to strengthen treatment adherence during extended therapy.Palabras clave
Texto completo:
1
Bases de datos:
MEDLINE
Asunto principal:
Trombosis
/
Tromboembolia Venosa
/
Anticoagulantes
Tipo de estudio:
Observational_studies
/
Qualitative_research
/
Risk_factors_studies
Límite:
Humans
/
Male
Idioma:
En
Revista:
BMJ Open
Año:
2020
Tipo del documento:
Article
País de afiliación:
Italia