PMID: 9184297Jun 1, 1997Paper

Evaluation of a pressure-recording guidewire in patients with coronary arterial disease

Catheterization and Cardiovascular Diagnosis
A AbildgaardK Endresen

Abstract

The accuracy and feasibility of coronary arterial pressure measurements with a 0.018-in. pressure-recording guidewire (PRGW) was evaluated in patients. Transstenotic pressure gradients were measured with the PRGW and a guiding catheter, at baseline and during coronary vasodilatation. Proximal intracoronary pressure was measured with both systems before and after gradient measurements. Zero pressure was measured with the PRGW before and after intracoronary use. The average of all proximal intracoronary PRGW readings were close to guiding catheter values, but there were substantial individual deviations. Average change in proximal deviation before and after gradient measurements was -1 mm Hg, standard deviation (S.D.) 7.6, range -16 to 15. Errors in zero pressure measurements after intracoronary use (average 2.8 mm Hg, S.D. 8.8, range -9 to 35) were much greater than before use (average 0.1 mm Hg, S.D. 1.4, range -4 to 3, P < 0.001). The PRGW was successfully introduced through an 8F guiding catheter and positioned across the stenosis in 21 of 26 attempts (81%). Intracoronary advancement of the PRGW through a double-lumen multifunctional probing catheter was successful in all nine attempts. In conclusion, errors in PRGW-measureme...Continue Reading

References

Oct 1, 1991·Catheterization and Cardiovascular Diagnosis·H EmanuelssonL Tenerz
Jan 1, 1986·Catheterization and Cardiovascular Diagnosis·M HaraphongseR E Rossall
Dec 1, 1983·The American Journal of Cardiology·R LeiboffA Ross
Dec 1, 1993·Catheterization and Cardiovascular Diagnosis·G GörgeJ Meyer
Jun 27, 1996·The New England Journal of Medicine·N H PijlsJ J Koolen

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Citations

Jun 30, 1999·Interventional Neuroradiology : Journal of Peritherapeutic Neuroradiology, Surgical Procedures and Related Neurosciences·S G Imbesi, C W Kerber

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