Sandmann W, Kremer K, Wüst H, Florack G, Ruf S
Thoraxchir Vask Chir. 1977 Dec;25(6):427-34. doi: 10.1055/s-0028-1097073.
An electromagnetic blood flow cuff probe was implanted up to 4 days in 50 patients to control basal blood flow through a femoro-popliteal vein graft. Patent grafts showed increasing blood flow due to hyperemia with maximum on the 2. p. op. day. The level of the postoperative hyperemia and the increase of blood flow caused by intraarterial papaverine injection during operation were in the same range. The method and the extension of analgesia influenced the degree of postoperative hyperemia. Pain and blood loss diminuished graft flow. Patients with epidural block and sufficient blood volume produced a significant higher graft flow than patients with morphine analgesia. 2 patients had early occlusion of the graft, 2 others showed occlusion at the distal anastomosis. These complications could be easily detected by blood flow measurement and were successfully corrected in two patients. Moreover, electromagnetic postoperative blood flow control may be helpful in patients with proximal a.v. shunt for hemodialysis.
在50例患者中植入电磁血流袖带探头长达4天，以控制通过股腘静脉移植血管的基础血流。通畅的移植血管因充血而血流增加，在术后第2天达到最大值。术后充血水平以及术中动脉内注射罂粟碱引起的血流增加处于同一范围。镇痛方法和范围影响术后充血程度。疼痛和失血会减少移植血管的血流。采用硬膜外阻滞且血容量充足的患者，其移植血管血流显著高于采用吗啡镇痛的患者。2例患者移植血管早期闭塞，另外2例在远端吻合口处出现闭塞。这些并发症通过血流测量很容易检测到，并且有2例患者成功得到纠正。此外，电磁术后血流控制对近端动静脉分流进行血液透析的患者可能有帮助。
