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Thorac Cardiovasc Surg 1985; 33(6): 352-353
DOI: 10.1055/s-2007-1014166
© Georg Thieme Verlag Stuttgart · New York

A New Technique for Measuring Oxygen Saturations of Hemoglobin and Myoglobin and its Application in Open Heart Surgery

H. R. Figulla1 , K. H. Leitz2 , J. Hoffmann3 , H. Kreuzer1
  • 1Department of Cardiology,
  • 2Department of Cardiothoracic Surgery, University Hospital Göttingen, and
  • 3Max-Planck Institute for Systemic Physiology, Dortmund, FRG
Further Information

Publication History

1985

Publication Date:
19 March 2008 (online)

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Summary

Light reflected from the human heart surface was used to determine mixed hemoglobin and myoglobin oxygen saturations (O2SAT) in the cardiac tissue.

The measurements were performed in 8 patients with coronary heart disease including Stenosis of left anterior descending coronary artery (LAD) who underwent aorto-coronary bypass surgery. At the end of the Operation the O2SAT was measured in the supply area of the LAD either with patent or occluded coronary bypass. In 13 experiments occlusion of the bypass resulted in a decrease of O2SAT from 74 ± 16% to 61 ± 24% (p<0.02).

A new technique is introduced and its limitations are discussed. Preliminary results of application in coronary bypass surgery demonstrate an increase in tissue oxygenation following myocardial revascularization.

Key words

Reflection photometry - Coronary blood flow - Aorto-coronary bypass surgery

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