Toe pressure determination by audiophotoplethysmography.

PURPOSE The purpose of this study was to evaluate the performance of audiophotoplethysmography as a modality to measure toe pressure without the requirement of a recorder. METHOD A portable photoplethysmograph with an audio output was used to determine toe pressures, and the results were compared with those obtained by a commercial photoplethysmograph with a recorder. RESULTS Thirty-one measurements in control subjects and 62 measurements in patients with arterial occlusive disease were performed. The average toe pressure recorded with oscillography with standard photoplethysmography was 103.5 mm Hg +/- 14.7 SD and 95.9 mm Hg +/- 13.4 SD with audio-photoplethysmography. In the patient group the pressure recorded with a commercial photoplethysmograph was 65.3 mm Hg +/- 34.9 SD compared with 61.6 mm Hg +/- 34.8 SD obtained with audio-photoplethysmography. The difference in both groups was insignificant, and the correlation between both methods was very good. CONCLUSION A portable hand-held photoplethysmograph equipped with an audio output was used to measure toe pressure in control subjects and in patients with arterial occlusive disease. The results have been compared with the oscillometric method by a standard commercial photoplethysmograph connected to a recorder. The correlation was very good in the control and patient groups, and the difference between both methods was below the level of statistical significance. The fact that no recorder is needed may help in introducing toe pressure measurement into everyday office diagnostic practice.

[1]  T. Orchard,et al.  Assessment of Peripheral Vascular Disease in Diabetes Report and Recommendations of an International Workshop* Sponsored by the American Diabetes Association and the American Heart Association September 18‐20, 1992 New Orleans, Louisiana , 1993, Circulation.

[2]  R. Tate,et al.  The effect of body heating and cooling on the ankle and toe systolic pressures in arterial disease. , 1992, Journal of vascular surgery.

[3]  Strandness De,et al.  PERIPHERAL VASCULAR DISEASE: DIAGNOSIS AND OBJECTIVE EVALUATION USING A MERCURY STRAIN GAUGE. , 1965 .

[4]  J. Gundersen.  Diagnosis of Arterial Insufficiency With Measurement of Blood Pressure in Fingers and Toes , 1971, Angiology.

[5]  P. Holstein,et al.  Toe blood pressure in peripheral arterial disease. Quantitative evaluation of occlusive process localized mainly in the arteries in lower leg and foot. , 1973, Acta orthopaedica Scandinavica.

[6]  S. Carter,et al.  Digital Systolic Pressures in the Lower Limb in Arterial Disease , 1971, Circulation.

[7]  P. Holstein,et al.  The distal blood pressure predicts healing of amputations on the feet. , 1984, Acta orthopaedica Scandinavica.

[8]  Sumner Ds,et al.  Toe blood pressure. A valuable adjunct to ankle pressure measurement for assessing peripheral arterial disease. , 1983 .

[9]  S. Shionoya,et al.  Intermittent claudication in the foot and buerger's disease , 1978, The British journal of surgery.

[10]  S. Shionoya,et al.  The Value of Toe Blood Pressure Measurement in Arterial Reconstructive Surgery , 1981 .

[11]  N. Lassen,et al.  Healing of ulcers on the feet correlated with distal blood pressure measurements in occlusive arterial disease. , 1980, Acta orthopaedica Scandinavica.

[12]  Bonecutter Ge,et al.  Toe blood pressure by photoplethysmography: an index of healing in forefoot amputation. , 1981 .