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Conjunctival oxygen monitoring: relationship to ventricular arrhythmias
S M Harding1, S M Podolsky, J H Wertheimer
1Department of Internal Medicine, Albert Einstein Medical Center, Philadelphia, Pennsylvania 19141.
Abstract:
The results of conjunctival oxygen monitoring in a critically ill patient whose cardiac rhythm changed from sinus tachycardia to ventricular tachycardia and ventricular fibrillation and back to sinus tachycardia are described. Monitoring revealed a significant decrease in conjunctival oxygen tension 2 minutes before ventricular tachycardia was manifested by continuous electrocardiography, and an immediate rise in conjunctival oxygen tension was seen with the resumption of sinus tachycardia. This monitoring modality may be a useful adjunct in the hemodynamic evaluation of critically ill patients.