Abstract
A technique is described for accurate measurement of intraarterial pressure through radial artery catheters in neonates. The technique, which can be used for short-term monitoring, uses cannulation of the radial artery with a 24-gauge Teflon catheter, connected by a Luer-Lok fitting to a threeway stopcock and a high-fidelity tip transducer. In vitro studies showed that the system is linear and the frequency response is flat (±3 dB) up to 50 Hz. The technique permits gathering of high-quality pressure data and can be used in the area of neonatal clinical research for short-term monitoring. It needs to be developed further before routine application in clinical practice can be recommended.
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References
Sonesson SE, Brobergcr U. Arterial blood pressure in the very low birthweight neonate. Evaluation of an automatic oscillometric technique. Acta Paediatr Scand 1987, 76:338–341
Evans DH, Lark GM, Archer LNJ, Levene MI. The continuous measurement of intra-arterial pressure in the neonate: method and accuracy. Clin Phys Physiol Meas 1986;7:179–184
Randel SN, Tsang BHL, Wung JT, et al. Experience with percutaneous indwelling peripheral arterial catheterization in neonates. Am J Dis Child 1987;141:848–851
Scllden H, Nilsson K, Larsson LE, Ekstrom-Jodal B. Radial arterial catheters in children and neonates: a prospective study. Crit Care Med 1987;15:1106–1109
Todres DI, Rogers MC, Shannon DC, et al. Percutaneous catheterization of the radial artery in the critically ill neonate. J Pcdiatr 1975;87:273–275
Gardner RM. Direct blood pressure measurementdynamic response requirements. Anesthesiology 1981; 54:227–236
Shinozaki T, Deane RS, Mazuzan JE. The dynamic responses of liquid-filled catheter systems for direct measurements of blood pressure. Ancsthesiology 1980; 53:498–504
Fry DL. Physiologic recording by modern instruments with particular reference to pressure recording. Physiol Rev 1960;40:753–788
Shapiro GG, Krovetz LJ. Damped and undamped frequency responses of underdamped catheter manometer systems. Am Heart J 1970;80:226–236
Boutros A, Albert S. Effect of the dynamic response of transducer-tubing system on accuracy of direct blood pressure measurement in patients. Crit Care Mcd 1983;11:124–127
Patel DJ, Mason DT, Ross J, Braunwald E. Harmonic analysis of pressure pulses obtained from the heart and great vessels of man. Am Heart J 1965;69:785–794
Attinger EO, Anne A, McDonald DA. Use of Fourier series for the analysis of biological systems. J Biophys 1966;6:291–304
Westcrhof N, Sipkema P, Elzinga G, et al. Arterial impedance. In: Hwang NHC, Gross DR, Patel DJ, eds. Quantitative cardiovascular studies. Clinical and research applications of engineering principles. Baltimore: University Park Press, 1979:11–150
Taylor BC, Ellis DM, Drew JM. Quantification and simulation ot fluid-filled catheter/transducer systems. Med Instrum 1986;20:123–129
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Hack, W.W.M., Westerhof, N., Leenhoven, T. et al. Accurate measurement of intraarterial pressure through radial artery catheters in neonates. J Clin Monitor Comput 6, 211–216 (1990). https://doi.org/10.1007/BF02832149
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DOI: https://doi.org/10.1007/BF02832149