Lumbar Plexus Block Upon the Incidence of Ischemic Cardiovascular Events in Elderly Patients With Hip Fracture

Inclusion Criteria: * Patients with hip fracture within 48 hours of evolution * Known coronary artery disease: Previous myocardial infarction Chronic stable angina Atypical angina with positive exercise test for coronary flow failure. Evidence of coronary artery disease with ultrasound, scintigraphic or angiographic compatible * Patients with at least two of the risk factors for coronary heart disease as defined by Wallace (1998) Exclusion Criteria: * Patients receiving orthopedic treatment. * Patients with coagulopathy, clinic or laboratory. * Patients with sepsis or infection of the catheter insertion site of lumbar plexus. * Patients with neurological diseases evolving. * Patients disoriented, or dementia. * CKD stage IV National Kidney Foundation (2) * Glomerular filtration rate between 15 and 29 mL/min/1, 73 m2 * Patients unable to use the Numeric Rating Scale (NRS) to assess pain. * Patients with non-sinus rhythm or conduction abnormalities (right bundle branch block or left, atrioventricular block) in the admission ECG * Patients with pacemaker. * Enrolled patients with acute coronary syndrome or decompensated cardiovascular disease at entry. * Allergy to any of the drugs of the protocol. * Inability to understand or unaided sign informed consent.