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Sigmoidal ischaemia after aortic grafting, detected by endoluminal pulse oximetry

Vahl, A.C. (Correspondence to: Dr A. C. Vahl. ); Nauta, S.H.M. (Institute for Cardiovascular Research, Department of Vascular Surgery Free University Hospital, De Boelelaan 1117, 1081 HV Amsterdam The Netherlands ); van Rij, G.L. (Institute for Cardiovascular Research, Department of Vascular Surgery Free University Hospital, De Boelelaan 1117, 1081 HV Amsterdam The Netherlands ); Scheffer, G.J. (Institute for Cardiovascular Research, Department of Vascular Surgery Free University Hospital, De Boelelaan 1117, 1081 HV Amsterdam The Netherlands ); Brom, H.L.F. (Institute for Cardiovascular Research, Department of Vascular Surgery Free University Hospital, De Boelelaan 1117, 1081 HV Amsterdam The Netherlands ); Rauwerda, J.A. (Institute for Cardiovascular Research, Department of Vascular Surgery Free University Hospital, De Boelelaan 1117, 1081 HV Amsterdam The Netherlands );
  • 초록  

    Abstract Colonic ischaemia after abdominal aortic grafting is a severe complication. Late detection of transmural ischaemia will result in a high mortality rate. No simple specific methods are available to detect the early stage. The aim of this pilot study was to detect and monitor sigmoidal ischaemia after aortic surgery with a new endoluminal slgmoidal probe, based on pulse oximetry. Twelve patients with sigmoidal ischaemia were included, the endoluminal probe being introduced into the sigmoid at least 25 cm proximal to the anal verge. It is shown that with this method, mucosal and transmural ischaemia can be graded and differentiated. Patients who showed no wave-form had transmural ischaemia; those with mucosal ischaemia showed reliable wave-forms with oxygen saturation from 40–85%. Colonic ischaemia after aortic grafting can be detected by endoluminal pulse oximetry but the clinical outcome will only improve by early detection in the preclinical stage.


  • 주제어

    sigmoidal ischaemia .   aortic grafting .   pulse oximetry .   counter-current.  

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