Resumo

MALDONADO VILLEGAS, Alejandra  e  MERCADO MALDONADO, Luis. Oral anticoagulation on patients with chronic hearth failure with reduced ejection fraction, experience at Centro Médico Quirúrgico Boliviano Belga. Gac Med Bol [online]. 2013, vol.36, n.2, pp.64-67. ISSN 1012-2966.

Objectives: to describe warfarin use and the incidence of stroke and mortality in chronic hearth failure with reduced ejection fraction (HFrEF) at Centro Médico Quirúrgico Boliviano Belga between 2004 and 2011. Methods: descriptive and transversal study in > 18 years with symptomatic ICC-FER, dividing them into those with sinus rhythm and non-valvular atrial fibrillation (NVAF), excluding those with intracavitary thrombus, recent thromboembolism, prosthetic valve and requiring the implant during the study. Results: 46 patients with sinus rhythm and 18 with NVAF. 46 patients with sinus rhythm and 18 with NVAF with severely reduced ejection fraction in both groups (29% and 30% respectively), all with diuretics and disease modifiers. All NVAF patients received antithrombotic therapy (anticoagulant and/or antiplatelet agents), 94% indicating anticoagulation as VASc CHA2DS2 were medicated with warfarin.). All the patients with NVAF received antithrombotics (anticoagulants and/or and antiplatelet drugs), 94% of which required anticoagulation according to CHA2DS2 VASc, they were medicated with warfarin. 67% of patients with sinus rhythm were anticoagulated whilst 6,5% were not. The stroke incidence were of 0,11 in NVAF and 0,15 in sinus rhythm during a 3 year monitoring period, whilst mortality reached 40% and 42% respectively in an average period of 4 years (+1,2). Conclusions: in HFrEF and NVFA most patients where receiving warfarin, that in this group had high embolic risk. Oral anticoagulation with warfarin in chronic heart failure with severely compromised FE (< 30%) in sinus rhythm often, without reporting major complications. The incidence of stroke was low and the overall mortality was high.

Palavras-chave : heart failure; anticoagulants; atrial fibrillation.

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