Venous Small Bowel Infarction: Intraoperative Laser Doppler Flowmetry Discriminates Critical Blood Supply and Spares Bowel Length
Figure 2
Mean values (10 sec) of laser Doppler flowmetry (microvascular flow and erythrocyte velocity) and spectroscopy (microvascular haemoglobin oxygenation SO2 and microvascular haemoglobin concentration rHB) of the proximal segment of the jejunum (I), of the distal segment of the jejunum and the ileum (II and III), and of the transverse colon (IV). The mean values measured at the chosen cut margin are just in range of the critical threshold values. The resected segment of bowel (III) shows a microvascular flow value below the critical threshold value of 10 AU and a microvascular haemoglobin concentration rHB almost at the critical threshold value of 90 AU.
