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Clinical significance of perfusion defects by thallium-201 single photon emission tomography following oral dipyridamole early after coronary angioplasty.

Publication ,  Journal Article
Jain, A; Mahmarian, JJ; Borges-Neto, S; Johnston, DL; Cashion, WR; Lewis, JM; Raizner, AE; Verani, MS
Published in: J Am Coll Cardiol
May 1988

The clinical significance of myocardial perfusion defects present early after angiographically successful percutaneous transluminal coronary angioplasty was assessed in 53 patients using thallium-201 single photon emission computed tomography combined with pharmacologic vasodilation induced by a large dose (300 mg) of orally administered dipyridamole. Myocardial tomographic images were obtained at a mean of 20 +/- 6 h (SD) before and 2.9 +/- 2.7 days after angioplasty. Before angioplasty, 15 (28%) of the 53 patients developed angina after dipyridamole administration, in contrast to only 3 (7.5%) of 40 patients after angioplasty (p less than 0.001). The mean percent luminal area stenosis decreased from 93 +/- 6% before angioplasty to 34 +/- 17% after angioplasty (p less than 0.001). Myocardial perfusion defects, present in 49 (93%) of the 53 patients before angioplasty, were reversible in 44 patients (83%), all of whom underwent dilation of arteries supplying the ischemic areas. After angioplasty, 26 (65%) of 40 patients had no ischemic defects, whereas 14 (35%) of the patients still had an ischemic defect in the vascular territory of the dilated artery. After a mean follow-up period of 21.7 months, 13 (33%) of 39 patients developed restenosis, 10 of whom had an ischemic defect early after angioplasty. Restenosis developed in 10 (71%) of 14 patients with an ischemic defect after angioplasty, but in only 3 (11.5%) of the patients without an ischemic defect (p = 0.007). In conclusion, thallium-201 tomography after oral dipyridamole affords convenient assessment of the physiologic significance of coronary stenosis present before angioplasty and the residual stenosis after angioplasty.(ABSTRACT TRUNCATED AT 250 WORDS)

Duke Scholars

Published In

J Am Coll Cardiol

DOI

ISSN

0735-1097

Publication Date

May 1988

Volume

11

Issue

5

Start / End Page

970 / 976

Location

United States

Related Subject Headings

  • Vasodilation
  • Tomography, Emission-Computed
  • Time Factors
  • Thallium Radioisotopes
  • Recurrence
  • Middle Aged
  • Male
  • Image Processing, Computer-Assisted
  • Image Interpretation, Computer-Assisted
  • Humans
 

Citation

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MLA
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Jain, A., Mahmarian, J. J., Borges-Neto, S., Johnston, D. L., Cashion, W. R., Lewis, J. M., … Verani, M. S. (1988). Clinical significance of perfusion defects by thallium-201 single photon emission tomography following oral dipyridamole early after coronary angioplasty. J Am Coll Cardiol, 11(5), 970–976. https://doi.org/10.1016/s0735-1097(98)90053-5
Jain, A., J. J. Mahmarian, S. Borges-Neto, D. L. Johnston, W. R. Cashion, J. M. Lewis, A. E. Raizner, and M. S. Verani. “Clinical significance of perfusion defects by thallium-201 single photon emission tomography following oral dipyridamole early after coronary angioplasty.J Am Coll Cardiol 11, no. 5 (May 1988): 970–76. https://doi.org/10.1016/s0735-1097(98)90053-5.
Jain A, Mahmarian JJ, Borges-Neto S, Johnston DL, Cashion WR, Lewis JM, et al. Clinical significance of perfusion defects by thallium-201 single photon emission tomography following oral dipyridamole early after coronary angioplasty. J Am Coll Cardiol. 1988 May;11(5):970–6.
Jain, A., et al. “Clinical significance of perfusion defects by thallium-201 single photon emission tomography following oral dipyridamole early after coronary angioplasty.J Am Coll Cardiol, vol. 11, no. 5, May 1988, pp. 970–76. Pubmed, doi:10.1016/s0735-1097(98)90053-5.
Jain A, Mahmarian JJ, Borges-Neto S, Johnston DL, Cashion WR, Lewis JM, Raizner AE, Verani MS. Clinical significance of perfusion defects by thallium-201 single photon emission tomography following oral dipyridamole early after coronary angioplasty. J Am Coll Cardiol. 1988 May;11(5):970–976.
Journal cover image

Published In

J Am Coll Cardiol

DOI

ISSN

0735-1097

Publication Date

May 1988

Volume

11

Issue

5

Start / End Page

970 / 976

Location

United States

Related Subject Headings

  • Vasodilation
  • Tomography, Emission-Computed
  • Time Factors
  • Thallium Radioisotopes
  • Recurrence
  • Middle Aged
  • Male
  • Image Processing, Computer-Assisted
  • Image Interpretation, Computer-Assisted
  • Humans