[Intraoperative control of revascularisation and indication for reintervention (author's transl)]

Among the procedures of intraoperative control of revascularisation the simple method of probe passage for determination of technical mistakes during anastomoses is very valuable. More informative is the measurement of bypass-flow using an electromagnetic flowmeter. We compared this method with the results of intraoperative angiography, which is performed in our hospital routinely for immediate control of revascularisation. A comparison of 214 veins demonstrated a good statistically significant correlation between run-off and bypass-flow. The quality of the anastomosis can only be judged by intraoperative angiography and does not correlate with a low bypass flow. According to these measurements it was necessary in four cases to perfrom an intraoperative reintervention.