[Off pump coronary artery bypass surgery long term results after 20 years in a cardiac center in Chile].

Background: The benefits of off-pump coronary artery bypass graft (OPCAB) compared with conventional on-pump coronary artery bypass graft are not well established although several studies show excellent long-term results.

Aim: To assess and report the long-term results of OPCAB surgery in a 20-year period in a Chilean Regional Cardiac Surgery Center.

Patients And Methods: Retrospective analysis of the medical records and surgical protocols of 1353 patients aged 61.

[Beating heart anterior descending coronary artery grafting with left internal mammary artery: a long term follow up experience].

Background: In recent years the use of left internal mammary artery (LIMA) as a gran to anterior descending artery (DA) with the off pump technique has been associated with similar good long term results as with the on pump technique.

Aim: To report the results of LIMA to DA bypass grafting without extracorporeal circulation (EC) for isolated DA lesions.

Patients And Methods: Descriptive study of 80 patients subjected to coronary surgery between 1999 and 2007.

[Ministernotomy for aortic valve surgery: report of 20 patients].

Background: Aortic valve surgery can be performed through a reduced mid sternotomy with excellent long term results.

Aim: To report the initial results obtained with this technique.

Patients And Methods: Descriptive study of 20 patients aged 48+/-11 years, subjected to valve replacement surgery for aortic valve disease between 2004 and 2007.