Abstract
The usefulness of distal coronary pressure monitoring during percutaneous transluminal coronary angioplasty (PTCA) was recognized by the pioneers in balloon angioplasty as testified by the design of a fluid-filled lumen in the first generation of balloon catheters. However, the interest in measuring coronary pressure has oscillated between enthusiasm of having a simple index of coronary hemodynamics [1–4] and disillusion due to the inconsistency of the results [5–7]. Clinical practice learned that a marked reduction in coronary flow often accompanies the placement of the deflated balloon catheter across the stenosis. Accordingly, it was admitted that, even with the presently available ultra low profile balloon angioplasty catheters, a marked overestimation in gradient could occur. The development of monorail angioplasty catheters precluding pressure measurements, further prompted the trend away from measuring distal pressures during PTCA. Nevertheless, it still holds that the knowledge of the transstenotic pressure gradient can be of aid to estimate dilatation efficacy [8–10]. Accordingly, a fluid-filled pressure monitoring PTCA wire was developed. It is the smallest coronary pressure monitoring device ever built and, hence, it should not cause additional obstruction to coronary flow when positioned across the lesion. Furthermore, monorail balloon catheters are best suited to be used over this wire to perform angioplasty.
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de Bruyne, B., Pijls, N.H.J., Vantrimpont, P.J., Paulus, W.J., Sys, S.U., Heyndrickx, G.R. (1994). Intracoronary pressure measurements with a 0.015″ fluid-filled angioplasty guide wire. In: Serruys, P.W., Foley, D.P., De Feyter, P.J. (eds) Quantitative Coronary Angiography in Clinical Practice. Developments in Cardiovascular Medicine, vol 145. Springer, Dordrecht. https://doi.org/10.1007/978-94-015-8358-9_10
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DOI: https://doi.org/10.1007/978-94-015-8358-9_10
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