Taudorf Mikkel, Nielsen Michael B, Schroeder Torben V, Lönn Lars, Nielsen Henning B
Department of Radiology, Rigshospitalet, Copenhagen, Denmark.
University of Copenhagen, Copenhagen, Denmark.
Acta Radiol Open. 2019 May 20;8(5):2058460119850115. doi: 10.1177/2058460119850115. eCollection 2019 May.
Provoked gluteal claudication is a known risk after endovascular aortic repair (EVAR). Lowered gluteal muscle oxygenation (SO) may be demonstrated by near-infrared spectroscopy (NIRS).
To evaluate NIRS-determined SO in EVAR patients.
NIRS-determined SO was used in an observational study design (n = 17). From the ambulatory setting, seven EVAR patients were included with reported gluteal claudication from medical records. In 10 patients scheduled for EVAR, SO was measured before and after the procedure. NIRS sensors were applied bilaterally on the gluteal region. Treadmill walking (12% incline, 2.4 km/h) was introduced to stress gluteal muscles.
A reduced SO with regional side difference ( < 0.05) was noted in all 10 patients following EVAR and four reported gluteal claudication. In patients with gluteal claudication (n = 7), treadmill decreased SO. The time to recover the SO was prolonged for tissue exposed to occluded hypogastric artery (median = 512 s, range = 73-1207 s vs. median = 137, range = 0-643 s; = 0.046).
EVAR affects gluteal muscle oxygenation. NIRS could be used to assess whether gluteal claudication is related to lowered SO.
血管腔内主动脉修复术（EVAR）后已知存在引发臀肌间歇性跛行的风险。近红外光谱（NIRS）可显示臀肌氧合作用（SO）降低。
评估接受EVAR治疗患者的NIRS测定的SO。
在一项观察性研究设计（n = 17）中使用NIRS测定的SO。在门诊环境中，从病历记录中纳入了7例报告有臀肌间歇性跛行的EVAR患者。在10例计划接受EVAR治疗的患者中，在手术前后测量SO。将NIRS传感器双侧应用于臀区。引入跑步机行走（坡度12%，速度2.4 km/h）以刺激臀肌。
所有10例接受EVAR治疗的患者均出现SO降低且存在区域侧差异（<0.05），其中有四例报告有臀肌间歇性跛行。在有臀肌间歇性跛行的患者（n = 7）中，跑步机行走使SO降低。暴露于闭塞的腹下动脉的组织恢复SO的时间延长（中位数 = 512秒，范围 = 73 - 1207秒，而中位数 = 137秒，范围 = 0 - 643秒； = 0.046）。
EVAR会影响臀肌氧合作用。NIRS可用于评估臀肌间歇性跛行是否与SO降低有关。
