Abstract
To observe the influence of circulatory changes on the lag time of the pulse oximeter response, eight healthy patients scheduled for hand surgery were studied. After breath holding, the patients took a breath of oxygen and the time to an increase in SpO2 was measured before and after axillary brachial plexus block. It was found that the lag time with finger probe decreased from 28.6 ±7.1 sec to 15.8 ± 1.1 sec (mean ± SD) following brachial block (P < 0.01), There was no change in arterial blood pressure. The results suggest that the lag time of the finger pulse oximeter response is primarily determined by blood flow.
Résumé
Afin d’observer l’influence des changements circulatoires sur le temps de réponse du saturomètre, huit patients en santé devant subir une chirurgie de la main ont été étudiés. Après avoir retenu leur respiration, les patients ont pris une respiration sous oxygène et le temps d’attente jusqu’à l’observation d’une augmentation de la SpO2 a été mesuré avant et après le bloc du plexus axillaire. Il a été noté que le temps de réponse avec la pièce digitale diminuait (P < 0,01) de 28,6 ± 7,1 sec à 15,8 ±1,1 sec (moyenne ± ET) après le bloc axillaire. Il n’y avait aucun changement de la tension artérielle. Ces résultats suggèrent que le temps de réponse de la pièce digitale du saturomètre est principalement déterminé par le débit sanguin.
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Yelderman M, New W Jr. Evaluation of pulse oximetry. Anesthesiology 1983; 59: 349–52.
Tremper KK, Barker SJ. Pulse oximetry. Anesthesiology 1989; 70: 98–108.
Severinghaus JW, Naifeh KH. Accuracy of response of six pulse oximeters to profound hypoxia. Anesthesiology 1987; 67: 551–8.
Rebuck AS, P FCC, Chapman KR, D’Urzo A, PhE B. The accuracy and response characteristics of a simplified ear oximeter. Chest 1983; 83: 860–4.
Kagle DM, Alexender CM, Berko RS, Giuffre M, Gross JB. Evaluation of the Ohemeda 3700 pulse oximeter: steady-state and transient response characteristics. Anesthesiology 1987; 66: 375–80.
Wilkins CJ, Moores M, Harming CD. Comparison of pulse oximeters: effects of vasoconstriction and venous engorgement. Bri J Anaesth 1989; 62: 439–44.
Langton JA, Lassey D, Hanning CD. Comparison of four pulse oximeters: effects of venous occlusion and coldinduced peripheral vasoconstriction. Br J Anaesth 1990; 65: 245–7.
Shionoya S, Matsubara J, Hirai M et al. Measurement of blood pressure, blood flow and blood flow velocity in arterial reconstruction of the lower extremity. Angiology 1983; 34:244–55.
Riva CE, Grunwald JE, Sinclair SH, Petring BL. Blood velocity and volumetric flow rate in human retinal vessels. Invest Ophthamol Vis Sci 1985; 26: 1124–32.
Silverman NR, Rosen L. Arterial blood flow measurement: assessment of velocity estimation methods. Invest Radiol 1977; 12:319–24.
Stein PD, Badeer HS, Schuttle WH, Zencka AE,Omaha. Velocity of coronary sinus blood flow as an indicator of coronary arterial flow. Am Heart J 1970; 80: 202–8.
Cronqvist S, Greitz T. Cerebral circulation time and cerebral blood flow. Acta Radiol Diag 1969; 8: 296–304.
David Spence J. Effects of antihypertensive agents on blood velocity: implication for atherogenesis. Can Med Assoc J 1982; 15:721–4.
David Spense J, Melmon KL Effects of antihypertensive drugs on blood velocity in rhesus monkeys. Stroke 1977; 8: 589–94.
Lofstrom JB, Lloyd JW, Cousins MJ. Sympathetic neural blockade of upper and lower extremity.In: Cousins MJ, Bridenbaugh PO (Eds.). Neural Blockade. Clinical Anesthesia and Management of Pain. Toronto: Philadephia, 1980; 355–8.
Zen M, Tryba M, Horch C. Sympathicusblockade nach Plexusanaesthesie. Reg Anaesth 1986; 9: 84–7.
Sada T, Kobayashi T, Murakami S. Continuous axillary brachial plexus block. Can Anaesth Soc J 1983; 30: 201–5.
Blick EF, Stein PD. A review of second-order effects on Poiseuille’s equation for application to blood and other viscous fluids. Med Res Eng 1976; 11: 27–31.
Agostoni E, Fenn WO. Velocity of muscle shorting as a limiting factor in respiratory air flow. J Appl Physiol 1960; 15:349–53.
Nowak GS, Moorthy SS, McNiece WL. Use of pulse oximetry for assessment of collateral arterial flow. Anesthesiology 1986; 64:527.
Graham B, Paulus DA, Caffee HH. Pulse oximetry for vascular monitoring in upper extremity replantation surgery. J Hand Surg (Am) 1986; 11A: 687–92.
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Ding, ZN., Shibata, K., Yamamoto, K. et al. Decreased circulation time in the upper limb reduces the lag time of the finger pulse oximeter response. Can J Anaesth 39, 87–89 (1992). https://doi.org/10.1007/BF03008681
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DOI: https://doi.org/10.1007/BF03008681