Detection of occult colonic ischemia during aortic procedures: Use of an intraoperative photoplethysmographic technique

Intraoperative Determination of Intestinal Viability: A Comparison with Transserosal Pulse Oximetry and Histopathological Examination

“…Pulse oximetry has been applied to the serosal surface of intestinal organs, where a good correlation has been reported between oxygen saturation and organ viability [13]. Viable intestines have normal saturation values [14,15], although a low value does not always indicate intestinal ischemia [16]. In a study of evaluation of anastomosis safety by Turkyilmaz et al [17], 80 -90% oxygen saturation was regarded as mild ischemia, 70 -80% oxygen saturation as moderate ischemia, and 60 -70% oxygen saturation as severe ischemia, but these findings have not been correlated with histopathological examination.…”

Intraoperative Colon Mucosal Oxygen Saturation During Aortic Surgery

“…In 1988, Ouriel and associates described a photoplethysmographic technique in 30 consecutive patients undergoing abdominal aortic reconstruction and was able to identify the loss of photoplethysmographic pulsatility with an immeasurable transcolonic oxygen saturation as suggestive of inadequate post-reconstructive colonic perfusion [16]. Sheridan and associates reported a technique using intraoperative oxygen tension measurement [9].…”

A new fibre optic pulse oximeter probe for monitoring splanchnic organ arterial blood oxygen saturation

“…A reflectance fibre optic splanchnic pulse oximeter probe was designed using 600 m core silica glass step index fibres, infrared (850 nm) and red (650 nm) emitters, and a 1 mm 2 active area photodiode [9]. In order to facilitate the evaluation of the fibre optic probe during open laparotomy, it was decided to configure the probe as a handheld device.…”

“…Pulse oximetry has also been used experimentally in both animals and humans [7][8][9][10] where it was found to be a 0169-2607/$ -see front matter © 2011 Elsevier Ireland Ltd. All rights reserved. doi:10.1016/j.cmpb.2011.03.019 rapid, reproducible, as well as a highly sensitive and specific technique for detecting small bowel ischaemia.…”