Intraoperative Doppler spectrum analysis of blood flow in the internal mammary artery used for myocardial revascularization.
Intraoperative Doppler-derived measurements of blood flow velocity were used to characterize the hemodynamics in 6 internal mammary artery grafts before and after anastomosis to the left anterior descending artery. Pulsed Doppler spectrum analysis demonstrated a change from a systolic to a predominantly diastolic flow pattern. The presented technique is a valuable aid to differentiate intraoperatively between normal and low flow states in the internal mammary artery. In addition, this study serve as a pilot study to investigate the clinical applicability of Doppler spectrum analysis in the functional assessment of the internal mammary artery in the pre- and postoperative stages of myocardial revascularization.
Department of Thoracic and Cardiac Surgery, University Hospital Nijmegen St. Radboud, The Netherlands.
J
J
van der Meulen
J A
JA
van Son
W N
WN
van Asten
S H
SH
Skotnicki
L K
LK
Lacquet
D000368:Aged; D001783:Blood Flow Velocity; D015150:Echocardiography, Doppler; D005260:Female; D006801:Humans; D008297:Male; D008323:Mammary Arteries / Q000000981:diagnostic imaging* / Q000503:physiopathology; D008875:Middle Aged; D016343:Monitoring, Intraoperative / Q000379:methods*; D009204:Myocardial Revascularization; D013057:Spectrum Analysis