Perioperative management of vitamin K antagonists in patients with low thromboembolic risk undergoing elective surgery: A prospective experience.

Background And Objectives: To quantify thromboembolic and bleeding events in patients with low thromboembolic risk, who were chronically receiving vitamin K antagonists and undergoing elective surgery.

Material And Methods: A descriptive, prospective, single-center study was conducted between December 2010 and July 2014. Patients aged over 18 years old, chronically anticoagulated with vitamin K antagonists and admitted for elective surgery were included in the study.

[Perioperative control of vitamin K antagonists in elective surgery].

Anti-coagulated patients who undergo elective surgery require temporary interruption of vitamin K antagonists. The aim of this study was to evaluate the incidence of thromboembolic events and bleeding complications in anti-coagulated patients undergoing elective invasive procedures by using an institutional management protocol. This was a descriptive study with prospective follow-up that included patients over 18 year old anti-coagulated with vitamin K antagonists, undergoing elective surgery.

[Risk of hemorrhage in patients older than 85 years, anticoagulated due to atrial fibrillation].

Background: Atrial fibrillation is the most common cardiac tachyarrhythmia and is an important independent risk factor for ischemic stroke. Its prevalence begins to increase in both sexes after 40 years of age as well as the risk of hemorrhage. The aim of this study was to compare the annual rate of hemorrhagic events between patients older and younger than 85 years, with diagnosis of nonvalvular atrial fibrillation and anticoagulated with warfarin.