Tokunaga Takuya, Shimada Mitsuo, Higashijima Jun, Yoshikawa Kozo, Nishi Masaaki, Kashihara Hideya, Takasu Chie, Ishikawa Daichi, Yoshimoto Toshiaki
Department of Surgery, Tokushima University, Tokushima, Japan.
Surg Laparosc Endosc Percutan Tech. 2020 Dec 16;31(3):281-284. doi: 10.1097/SLE.0000000000000893.
Anastomotic leakage is a feared complication of anterior resection for rectal cancer. Among the various factors reported to be involved in the occurrence of anastomotic leakage, blood perfusion of the remnant intestine is one of the most important. Recently, the usefulness of evaluating blood perfusion using indocyanine green (ICG) has been reported. We therefore aimed to show that measuring intestinal temperature using thermography is useful for evaluating blood perfusion. The authors also investigated the relation between intestinal temperatures and the ICG fluorescence time (FT).
Altogether, 45 patients who underwent laparoscopic anterior resection for rectal cancer between July 2017 and September 2018 were enrolled in this study. ICG FT and intestinal temperature were measured after the mesenteric dissection.
The temperature boundary could be easily identified using thermographic images. The temperature of the residual intestinal tract was significantly higher than that of the resected intestinal tract at the planned separation line (29.9 vs. 27.3°C). In addition, there was an inverse correlation between the ICG FT and the temperature of the residual intestine.
Intestinal temperature measurement through thermography is a useful new tool for evaluating intestinal blood perfusion.
吻合口漏是直肠癌前切除术令人担忧的并发症。在据报道与吻合口漏发生相关的各种因素中，残留肠管的血液灌注是最重要的因素之一。最近，有报道称使用吲哚菁绿（ICG）评估血液灌注的有效性。因此，我们旨在表明使用热成像测量肠温度对评估血液灌注是有用的。作者还研究了肠温度与ICG荧光时间（FT）之间的关系。
本研究共纳入2017年7月至2018年9月期间接受腹腔镜直肠癌前切除术的45例患者。在肠系膜解剖后测量ICG FT和肠温度。
使用热成像图像可以很容易地识别温度边界。在计划的分离线处，残留肠道的温度明显高于切除肠道的温度（29.9对27.3°C）。此外，ICG FT与残留肠管的温度呈负相关。
通过热成像测量肠温度是评估肠血液灌注的一种有用的新工具。
