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Left atrial reverse remodeling following surgical revascularization and mitral valve repair

P. Panayotov, M. Slavov, D. Panayotova, N. Nikolova

Abstract

The results from the analysis of the preoperative cardiac status and postoperative period of 140 patients with ischemic heart disease and significant ischemic mitral regurgitation (IMR) were presented. In 71 patients, surgical revascularization and simultaneous mitral valve repair was done (group A). The rest 69 patients were subjected to isolated coronary artery bypass procedure (group B). Control transthoracic echocardiographic examinations were performed before discharge from hospital and postoperative follow-up (mean 20 months) was accomplished. The emphasis was made on the left atrial morphology prior to the intervention as well as on the gradual changes following the two types of procedures. It is established that immediately after isolated revascularization, left atrial size decreases, but slightly and temporarily. Later on, dilatation goes on and at patient`s follow-up its mean size      is bigger than preoperatively. On the other hand, combined coronary revascularization and mitral valve repair result in more prominent and durable left atrial reduction. Based on this a conclusion can be drawn that combined surgical revascularization and mitral repair may trigger a process of significant left atrial reverse remodeling thus lowering the risk of subsequent cardiovascular accidents.


Keywords

ischemic mitral regurgitation; left atrial remodeling; surgical revascularization; isolated coronary artery bypass; echography

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DOI: http://dx.doi.org/10.14748/hl.v17i1-2.4320

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