Daniel Navia

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OBJECTIVE The aim of our study was to evaluate the long-term outcome of patients exclusively undergoing total arterial revascularization off-pump coronary artery bypass grafting and to compare the performance of the radial artery and the right internal thoracic artery as a second conduit. METHODS We studied a consecutive series of 1700 patients undergoing(More)
We report on a rare case of a 65-year-old woman who was admitted with orthopnea (NYHA class IV) and a single syncopal episode. A transthoracic echocardiography examination showed a 7x6x6-cm mass located in the right atrium and perfusion lung scan showed embolization. Complete surgical removal of the right atrial myxoma and tumor embolectomy was successfully(More)
Recognition of the P wave is important for the correct characterization of atrial and ventricular arrhythmias. When the P wave is difficult to identify on standard electrocardiography (SECG), either esophageal electrocardiography (EECG) or intracardiac electrocardiography (IC-ECG), central venous catheter may be used. The feasibility of these methods has(More)
BACKGROUND This was a single-institutional study about total arterial off-pump coronary artery bypass graft surgery (OPCABG) using bilateral internal thoracic arteries in triple-vessel disease. METHODS We retrospectively reviewed the records of 569 multivessel CABG patients (10% female) who underwent total arterial (bilateral internal thoracic arteries)(More)
Osler-Rendu-Weber (hereditary hemorrhagic telangiectasia) disease is an uncommon disease characterized by the presence of abnormal telangiectasias and arteriovenous malformations that cause recurrent episodes of bleeding. We present a patient with Osler-Rendu-Weber disease, with a history of multiple major bleeding events and severe aortic valve stenosis,(More)
BACKGROUND Saphenous vein remains an elective conduit for up to 85% of coronary bypass operations. It is obtained through one or numerous skin incisions, with a reported morbidity varying from 5% to 25%. The endoscopic vein harvesting (EVH) technique was developed to minimize this morbidity and to improve clinical outcomes. The aim of this study was to(More)
OBJECTIVE The aim of our study was to evaluate the impact of recent clopidrogel use before off-pump coronary artery bypass grafting on the postoperative risk of bleeding. METHODS During the period January 2003 to December 2006, 1104 consecutive patients underwent off-pump coronary artery bypass grafting. Patients were divided into two groups according to(More)
This work shows an extension of dual-modifier adaptation methodology for RTO to reduce the infeasibilities. The main idea is to add a PI controller that is activated only when the measurements shows a violation in the constraints. Since the dual problem is solved to estimate the gradients of the process, an additional controller must be considered in order(More)
Echinococcosis is a parasitic zoonosis caused by the dog tapeworm Echinococcus and its larval stage, the hydatid cyst. The vast majority of cysts occur in the liver, lungs, or both. Arterial involvement is usually seen after cardiac hydatid cyst rupture. Hydatid cystwithin the pulmonary arteries is an exceptional localization, usually a consequence of(More)