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Fig. 10B. 73-year-old man with supraceliac bifurcated aorta to splenic
artery and superior mesenteric artery bypass graft. Spectral Doppler waveform
was abnormal with minimal flow distally and high resistance, indicating distal
occlusion or significant stenosis. Surgeon elected not to revise this
abnormality because of prolonged operating and clamping time and significant
patient comorbidities. Graft occluded the following day and patient underwent
additional operation.