The cerebral hyperperfusion syndrome: Diagnostic value of ocular pneumoplethysmography Gary G. Nicholas, MD, FACS, Homayoun Hashemi, MD, William Gee,

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Presentation transcript:

The cerebral hyperperfusion syndrome: Diagnostic value of ocular pneumoplethysmography Gary G. Nicholas, MD, FACS, Homayoun Hashemi, MD, William Gee, MD, FACS, James F. Reed, PhD Journal of Vascular Surgery Volume 17, Issue 4, Pages 690-695 (April 1993) DOI: 10.1016/0741-5214(93)90112-Y Copyright © 1993 Society for Vascular Surgery and International Society for Cardiovascular Surgery, North American Chapter Terms and Conditions

Fig. 1 Preoperative OPG test in one of four Si-Oc patients, with severe stenosis on left and total occlusion on right. Right and left OBFs are 0.86 and 0.93 ml/min, respectively. Right and left ophthalmic systolic pressures are 91 and 94 mm Hg, respectively. Ophthalmobrachial systolic pressure (OBSP) indexes were − 22.0 and − 19.0 mm Hg, respectively. Latter are calculated from respective ophthalmic systolic pressures (OSP) and brachial systolic pressure (BSP) with formula OBSP = OSP − 39.0 − 0.43 BSP, as described elsewhere.7 Reference also contains explanations for our preference of OBSP index over OSP/BSP ratio. Journal of Vascular Surgery 1993 17, 690-695DOI: (10.1016/0741-5214(93)90112-Y) Copyright © 1993 Society for Vascular Surgery and International Society for Cardiovascular Surgery, North American Chapter Terms and Conditions

Fig. 2 Postoperative OPG test on same patient in Fig. 1 after left carotid endarterectomy. Right and left OBFs are 2.63 and 5.38 ml/min, respectively. Ophthalmic systolic pressures are 127 and 140 mm Hg, respectively. OBSP indexes are − 6.6 and 6.4 mm Hg, respectively. Latter reflect occluded right internal carotid artery and now-patent left internal carotid artery. Journal of Vascular Surgery 1993 17, 690-695DOI: (10.1016/0741-5214(93)90112-Y) Copyright © 1993 Society for Vascular Surgery and International Society for Cardiovascular Surgery, North American Chapter Terms and Conditions