Therapeutic consequences of variation in intraarterial pressure measurements after iliac angioplasty.
Cardiovasc Intervent Radiol
; 20(6): 426-30, 1997.
Article
em En
| MEDLINE
| ID: mdl-9354710
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.
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Base de dados:
MEDLINE
Assunto principal:
Arteriopatias Oclusivas
/
Pressão Sanguínea
/
Angioplastia com Balão
/
Artéria Ilíaca
Idioma:
En
Ano de publicação:
1997
Tipo de documento:
Article