Mariano José Riesgo

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OBJECTIVE To determine the frequency, etiology, and risk factors of ventilator-associated pneumonia (VAP) and purulent tracheobronchitis (TBX) in patients who have undergone heart surgery. To study the predictive role of systematic surveillance cultures. DESIGN Prospective study. SETTING Heart surgery intensive care unit. PATIENTS Intubated heart(More)
The effect of coronary artery reperfusion on infarct size was studied in a pig heart model. Forty four open chest pigs underwent occlusion of the mid-left anterior descending artery. Fifteen minutes after occlusion the animals were randomised to one of five groups: reperfusion at 30, 45, 60, or 90 min after occlusion (groups 1-4) or permanent occlusion(More)
BACKGROUND Massive calcification of the atrial walls ("porcelain atrium") is a rare condition that usually has been reported as an incidental radiologic findings. METHODS Between January 1988 and June 1993, 971 patients underwent valvular operation at our institution; 21 patients showed extensive calcification of the left atrium. In 8 patients the(More)
Invasive measurement of blood pressure has many advantages. Although arterial canalization is a low-risk technique of great benefit to the patient, complications must be looked for. We report the case of a man who underwent triple coronary bypass with arterial canalization requiring several punctures to achieve. Two weeks after the procedure the patient(More)
The role of transoesophageal echocardiography (TOE) in anaesthesia remains controversial because it is a rapidly evolving technique with few proven benefits and considerable cost. Recently, the Society of Cardiovascular Anaesthesiologists has published practice guidelines for the use of peri-operative TOE. To determine the current role of transoesophageal(More)
Transesophageal echocardiography is being used increasingly by anesthesiologists for monitoring and diagnosis. Real-time imaging provides valuable information about anatomy, preloading and cardiac contractility. Its use is mandatory in valve repair surgery and it has been shown to detect cardiac ischemia before any other monitoring tool. Programs to teach(More)
Our results with surgical revascularization for evolving myocardial infarction in 30 patients are analyzed. There were 25 men and 5 women (mean age 55 +/- 10 years), most with unstable angina (80%), which sustained an acute myocardial infarction secondary to either a severe stenosis (23%) or a complete obstruction (77%) of a mayor coronary artery during a(More)
Transesophageal echocardiography is a monitoring system that is changing the practice of cardiovascular anesthesia and surgery by providing real time images of cardiovascular anatomy and pathophysiology. Our hospital's anesthesiology and postoperative intensive care departments, in particular the cardiac anesthesia team, initiated a joint project in June(More)