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The Journal of Cardiovascular Surgery 1998 February;39(1):75-8

Copyright © 2000 EDIZIONI MINERVA MEDICA

The assessment of internal mammary artery grafts by colour Doppler in coronary artery surgery

Sungun M., Duran E., Cebeci B. S., Us M. H., Saba D., Saygin G.

From the GATA Haydarpasa Education Hospital Department of Cardiovascular Surgery Istanbul, Turkey


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Background. Various stud­ies in ­progress on the flow and diam­e­ter param­e­ters based assess­ment and suit­abil­ity of inter­nal mam­mary ­artery by pre­op­er­a­tive ­colour Doppler exam­ina­tion in cor­o­nary ­artery sur­gery. Postoperative vis­u­al­isa­tion of these ­grafts is also in evo­lu­tion. Due to its non­in­va­sive ­approach, ­colour Doppler sonog­ra­phy is tak­ing its place in the fol­low-up of cor­o­nary ­artery ­bypass pro­ce­dure. The aim of this study was to show the effec­tive­ness and fea­sibil­ity of ­colour Doppler in the rou­tine post­op­er­a­tive fol­low-up eval­u­a­tion.
Methods. In GATA Haydarpasa Education Hospital, cor­o­nary ­artery ­bypass graft­ing was performed by anas­to­mos­ing left inter­nal mam­mary ­artery to left ante­ri­or descend­ing ­artery and saph­e­nous veins to remain­ing ­lesions of the cor­o­nary arter­ies in 36 male ­patients ­between the ages of 42 to 66 (mean 54.8) in 1995. Left inter­nal mam­mary ­artery and ­unused right inter­nal mam­mary ­artery were ­imaged by ­colour Doppler six to eight weeks after the oper­a­tions in all cases. Coronary angio­gra­phy was also per­formed in two cases 4 ­months post­op­er­a­tive­ly.
Results. Colour Doppler sonog­ra­phy find­ings ­showed that the diam­e­ter of left inter­nal mam­mary ­artery was larg­er (p=0.03) and mean flow value was great­er than ­intact right inter­nal mam­mary ­artery (p=0.02).
Conclusions. These ­results shows that ­colour Doppler sonog­ra­phy ­should be ­applied as a non­in­va­sive meth­od, in the fol­low-up of inter­nal mam­mary ­artery ­grafts after cor­o­nary ­artery revas­cu­lar­isa­tion.

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