Nam Ha Jong, Wee Syeo Young, Kim Se Young, Jeong Hyun Gyo, Lee Da Woon, Byeon Je-Yeon, Park Sang-Ho, Choi Hwan Jun
Department of Plastic and Reconstructive Surgery, Soonchunhyang University Gumi Hospital, Gumi, Korea.
Department of Plastic and Reconstructive Surgery, Soonchunhyang University Cheonan Hospital, Cheonan, Korea.
Int Wound J. 2023 Oct 11;21(2). doi: 10.1111/iwj.14431.
The increased peripheral arterial disease (PAD) incidence associated with aging and increased incidence of cardiovascular conditions underscores the significance of assessing lower limb perfusion. This study aims to report on the correlation and utility of two novel non-invasive instruments: transcutaneous oxygen pressure (TcPO ) and forward-looking infrared (FLIR) thermography. A total of 68 patients diagnosed with diabetic foot ulcer and PAD who underwent vascular studies at a single institution between March 2022 and March 2023 were included. Cases with revascularization indications were treated by a cardiologist. Following the procedure, ambient TcPO and FLIR thermography were recorded on postoperative days 1, 7, 14, 21 and 28. In impaired limbs, TcPO was 12.3 ± 2 mmHg and FLIR thermography was 28.7 ± 0.9°C. TcPO (p = 0.002), FLIR thermography (p = 0.015) and ankle-brachial index (p = 0.047) values significantly reduced with greater vascular obstruction severity. Revascularization (n = 39) significantly improved TcPO (12.5 ± 1.7 to 19.1 ± 2.2 mmHg, p = 0.011) and FLIR (28.8 ± 1.8 to 32.6 ± 1.6°C; p = 0.018), especially in severe impaired angiosomes. TcPO significantly increased immediately post-procedure, then gradually, whereas the FLIR thermography values plateaued from day 1 to 28 post-procedure. In conclusion, FLIR thermography is a viable non-invasive tool for evaluating lower limb perfusion based on angiosomes, comparable with TcPO .
外周动脉疾病（PAD）的发病率随年龄增长而上升，且心血管疾病的发病率也有所增加，这凸显了评估下肢灌注的重要性。本研究旨在报告两种新型非侵入性仪器的相关性及效用：经皮氧分压（TcPO）和前瞻性红外（FLIR）热成像技术。纳入了2022年3月至2023年3月期间在单一机构接受血管检查的68例诊断为糖尿病足溃疡和PAD的患者。有血管重建指征的病例由心脏病专家进行治疗。术后第1、7、14、21和28天记录环境TcPO和FLIR热成像。在受损肢体中，TcPO为12.3±2mmHg，FLIR热成像为28.7±0.9°C。随着血管阻塞严重程度的增加，TcPO（p = 0.002）、FLIR热成像（p = 0.015）和踝肱指数（p = 0.047）值显著降低。血管重建（n = 39）显著改善了TcPO（从12.5±1.7mmHg提高到19.1±2.2mmHg，p = 0.011）和FLIR（从28.8±1.8°C提高到32.6±1.6°C；p = 0.018），尤其是在严重受损的血管区域。术后TcPO立即显著升高，然后逐渐升高，而FLIR热成像值在术后第1天至28天趋于平稳。总之，FLIR热成像是一种基于血管区域评估下肢灌注的可行的非侵入性工具，与TcPO相当。
