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Revista chilena de cardiología

On-line version ISSN 0718-8560

Abstract

ARCE, Carlos et al. Oral anticoagulant treatment (OAT) in patients with cardiac valve replacement at a general hospital in Antofagasta, Chile. Rev Chil Cardiol [online]. 2016, vol.35, n.2, pp.147-151. ISSN 0718-8560.  http://dx.doi.org/10.4067/S0718-85602016000200008.

Background: Care of patients with cardiac valve replacement often includes the need for anticoagulation which prevents complications that may decrease survival rate. Aim: to describe the experience with OAT in a cohort of patients with cardiac valve replacement at the Regional Hospital in Antofagasta Results: 135 out of 180 patients fulfilled inclusion criteria. There were 76 females (56.3%) and 59 males (43.7%), with a mean of 62 years old (28-90), 59 (30-90) in females and 64 (36-81) in males. The valve replaced was the aortic in 69 patients (51.1%), the mitral in 60 (44.5%), both the aortic and the mitral valve in 5 (3.7%). Only 1 patients had a tricuspid valve replaced. 122 mechanical valves (90.4%) and 13 biological valves (9.6%) were implanted. The overall mean INR was 2.64 (1.11 - 5.47). The mean INR value according to the valve replaced was: mitral valve 2.5 (1,11-4,89), aortic valve 2.75 (1.195.47) and mitral plus aortic valve 2.65 (1.28-3.74). Overall, 58 patients were found to be outside the therapeutic target. Conclusion: These results are less satisfactory than those proposed by national guidelines. The anticoagulant clinic must be optimized and more biological rather than mechanical valves should be used for cardiac valve replacement.

Keywords : Cardiac surgery; cardiac valve replacement; oral anticoagulation.

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