Near-infrared spectroscopy in vegetables and humans: An observational study.
Eur J Anaesthesiol. 2018 Jul 16;:
Authors: Kahn RA, Anyanwu A
BACKGROUND: Cerebral near-infrared spectroscopy (NIRS) of tissue oxygen saturation is claimed to be a surrogate marker for global cerebral perfusion. Increasingly, NIRS target-based therapy has been used during cardiac surgery in the hope of decreasing the incidence of adverse neurological outcome.
OBJECTIVES: We report NIRS values for some common vegetables and faculty at a world-class medical institution.
DESIGN: Observational nonblinded study.
SETTING: Single tertiary care institution and local urban vegetable market.
PARTICIPANTS: Five yams (Dioscorea cayenensis), five courgettes (Cucurbita pepo) and five butternut squashes (Cucurbita moschata) were studied. Five cardiothoracic surgeons and anaesthesiologists were the control group.
MAIN OUTCOME MEASURES: NIRS value of each species.
RESULTS: Mean NIRS value for the control group was 71% [95% confidence interval (CI) 68 to 74] and was similar to that of the yellow squashes [75% (95% CI 74 to 76)]. These values were significantly greater than the NIRS measurements of both the butternut squash and yam [63% (95% CI 62 to 64) and 64% (95% CI 63 to 65), respectively, P < 0.01].
CONCLUSION: Commonly eaten vegetables have NIRS measurements similar to those seen in healthy humans.
PMID: 30020143 [PubMed – as supplied by publisher]