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Therapeutic consequences of variation in intraarterial pressure measurements after iliac angioplasty.

Abstract：

PURPOSE:To assess the accuracy of intraarterial measurement of transstenotic pressure gradients for the detection of hemodynamically suboptimal iliac angioplasty. METHODS:In 14 patients, referred for diagnostic angiography, mean pressure gradients in the aorta and iliac artery were obtained twice, using a double-sensor pressure catheter. Additional iliac measurements were performed during pharmacologically induced flow augmentation. Repeatability was assessed by calculation of the mean difference plus standard deviation (MD +/- SD) and repeatability coefficient (2 x SD). These results were extrapolated to 137 iliac angioplasty procedures with secondary stenting where there was a residual pressure gradient > 10 mmHg. RESULTS:MD +/- SD for repeated measurements at rest and during flow augmentation were 0 +/- 2 mmHg and 1 +/- 3 mmHg, respectively. Repeatability coefficients were 3 and 6 mmHg. Mean pressure gradients after hemodynamically insufficient angioplasty were 8 +/- 7 mmHg at rest and 17 +/- 5 mmHg following vasodilatation. Inaccurate pressure recordings may have led to inappropriate stent placement in less than 2.5%, and inappropriate denial of stent placement in less than 5% of the lesions. CONCLUSION:Variability of intraarterial pressure measurements has little consequence in the detection of hemodynamically significant stenosis after angioplasty.

journal_name

Cardiovasc Intervent Radiol

journal_title

Cardiovascular and interventional radiology

authors

Tetteroo E,Haaring C,van Engelen AD,van der Graaf Y,Mali WP

doi

10.1007/s002709900187

subject

Has Abstract

pub_date

1997-11-01 00:00:00

pages

426-30

issue

6

eissn

0174-1551

issn

1432-086X

journal_volume

20

pub_type

杂志文章

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