Sanjev Sarin, FRCS, David A. Shields, FRCS, John H

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Presentation transcript:

Photoplethysmography: A valuable noninvasive tool in the assessment of venous dysfunction? Sanjev Sarin, FRCS, David A. Shields, FRCS, John H. Scurr, FRCS, Phillip D. Coleridge Smith, FRCS Journal of Vascular Surgery Volume 16, Issue 2, Pages 154-162 (August 1992) DOI: 10.1016/0741-5214(92)90103-F Copyright © 1992 Society for Vascular Surgery and the North American Chapter, International Society for Cardiovascular Surgery Terms and Conditions

Fig. 1 Schematic photoplethysmography trace shows the resting value (A), the lowest point after ten dorsiflexions of the ankle (B), and the subsequent restoration to the resting value values (C). Journal of Vascular Surgery 1992 16, 154-162DOI: (10.1016/0741-5214(92)90103-F) Copyright © 1992 Society for Vascular Surgery and the North American Chapter, International Society for Cardiovascular Surgery Terms and Conditions

Fig. 2 Composite photoplethysmography trace (median value and interquartile) ranges of limbs with simple varicose veins (n = 132), varicose veins with lipodermatosclerosis (VVs + LDS) (n = 50), and varicose veins with lipodermatosclerosis and ulceration (VVs + LDS/Ulcer) (n = 44) compared with the composite trace of clinically normal lower limbs (n = 78). Journal of Vascular Surgery 1992 16, 154-162DOI: (10.1016/0741-5214(92)90103-F) Copyright © 1992 Society for Vascular Surgery and the North American Chapter, International Society for Cardiovascular Surgery Terms and Conditions

Fig. 3 Composite photoplethysmography trace (median value and interquartile) ranges of limbs with long saphenous vein (LSV) reflux only (n = 120), with short saphenous vein (SPJ) reflux only (n = 33), and deep venous reflux only (n = 17) on duplex scanning compared with the composite trace of limbs with no evidence of reflux in the venous system (n = 80). Journal of Vascular Surgery 1992 16, 154-162DOI: (10.1016/0741-5214(92)90103-F) Copyright © 1992 Society for Vascular Surgery and the North American Chapter, International Society for Cardiovascular Surgery Terms and Conditions

Fig. 4 Three ROC curves (gradient, 50% refilling time and 95% refilling time) on limbs grouped clinically into those with varicose veins only (n = 132) and those with complicated varicose veins (n = 94), compared with clinically normal limbs (n = 78). Journal of Vascular Surgery 1992 16, 154-162DOI: (10.1016/0741-5214(92)90103-F) Copyright © 1992 Society for Vascular Surgery and the North American Chapter, International Society for Cardiovascular Surgery Terms and Conditions

Fig. 5 Three ROC curves (gradient, 50% refilling time and 95% refilling time) on limbs grouped by duplex scanning into those with superficial venous reflux (n = 173) only and those with deep venous reflux (n = 51) compared with those with no evidence of reflux (n = 80). Journal of Vascular Surgery 1992 16, 154-162DOI: (10.1016/0741-5214(92)90103-F) Copyright © 1992 Society for Vascular Surgery and the North American Chapter, International Society for Cardiovascular Surgery Terms and Conditions

Fig. 6 Effect of above-knee and below-knee cuffs on photoplethysmography traces in limbs with long saphenous vein reflux (LSV) (n = 120). Short saphenous vein reflux (SSV) (n = 33), and deep venous insufficiency (DVI) (n = 17). Journal of Vascular Surgery 1992 16, 154-162DOI: (10.1016/0741-5214(92)90103-F) Copyright © 1992 Society for Vascular Surgery and the North American Chapter, International Society for Cardiovascular Surgery Terms and Conditions