The usefulness of near-infrared spectroscopy in the anesthetic management of endovascular aortic aneurysm repair

Abstract

Near-infrared spectroscopy (NIRS) may be a useful method for monitoring the regional oxygen saturation (rSO(2)) of the lower extremity during endovascular aortic repair. Eighteen patients with thoracic descending and/or abdominal aortic aneurysm were enrolled in this study. NIRS probes were placed bilaterally on the calves. Muscular rSO(2) (mrSO(2)) was monitored every 30 s throughout the operation. In the leg in which the femoral artery was clamped, mrSO(2) values were selected at 3 or 4 points-just before clamping (control value), 30 min after clamping, 10 min after the first declamping, and 10 min after the second declamping following repair of the femoral artery, if necessary. In all patients, mrSO(2) decreased significantly during clamping, from 64 ± 11 % (mean ± SD) of the control value to 32 ± 15 %. After declamping, mrSO(2) recovered to 69 ± 14 % of the control value in 16 patients. In the 2 other patients, however, mrSO(2) did not recover after the first declamping, because of femoral artery dissection. After additional repair, mrSO(2) recovered quickly to the control value. These data suggested NIRS may objectively and quantitatively reflect oxygenation of the lower extremities, and may indicate an ischemic event that needs additional repair during endovascular aortic repair.

The significance of regional hemoglobin oxygen saturation values and limb-to-arm ratios of near-infrared spectroscopy to detect critical limb ischemia

“…However, the clinical application of NIRS as a trend measurement within one patient has shown promising results in several applications. 9,[18][19][20][21][22][23][24] Therefore, current NIRS studies of lower extremity vascularization focus on individual trend measurement, like the influence of percutaneous transluminal angioplasty on ulcer healing and the use of NIRS measurements to detect early post-operative infrainguinal bypass failure.…”

Ascending Aortic Repair and Simultaneous Femoro-Femoral Crossover Bypass for Acute DeBakey Type I Dissection with Leg Ischemia

“…Although outside of manufacturer instructions for use, peripheral INVOS TM tissue saturation monitoring is quick, simple, and probably satisfactory in assessing immediate revascularization outcome and limb reperfusion [6].…”

A Novel Bathing Therapeutic Approach for Diabetic Foot Ulcers

“…Noninvasive near infra-red spectroscopy (NIRS) [31][32][33][34] was used to measure the extent of oxygen saturation in the microcirculation of the foot ulcer. This technology can measure the percentage of hemoglobin oxygen saturation up to a distance of 30 mm below the skin [32].…”