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Previous Volume 330:863-864 March 24, 1994 Number 12 Next

	Since this article has no abstract, we have provided an extract of the first 100 words of the full text and any section headings.

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To the Editor: Perhaps the most important finding in the study by Heijboer and coworkers comparing real-time compression ultrasonography with impedance plethysmography (Nov. 4 issue)¹ is that the overwhelming majority of patients who present with suspected venous thrombosis prove not to have it when objective testing is used. The other important finding was that serial impedance plethysmography was as effective as serial compression ultrasonography in excluding venous thrombosis and achieving satisfactory outcomes in terms of a low incidence of thromboembolic recurrences when therapy was withheld. The authors chose, however, to emphasize the apparent superiority of compression ultrasonography over impedance plethysmography . . . [Full Text of this Article]

References

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• Fleisher, L. A., Beckman, J. A., Brown, K. A., Calkins, H., Chaikof, E. L., Fleischmann, K. E., Freeman, W. K., Froehlich, J. B., Kasper, E. K., Kersten, J. R., Riegel, B., Robb, J. F., Smith, S. C. Jr, Jacobs, A. K., Adams, C. D., Anderson, J. L., Antman, E. M., Buller, C. E., Creager, M. A., Ettinger, S. M., Faxon, D. P., Fuster, V., Halperin, J. L., Hiratzka, L. F., Hunt, S. A., Lytle, B. W., Nishimura, R., Ornato, J. P., Page, R. L., Riegel, B., Tarkington, L. G., Yancy, C. W. (2007). ACC/AHA 2007 Guidelines on Perioperative Cardiovascular Evaluation and Care for Noncardiac Surgery: A Report of the American College of Cardiology/American Heart Association Task Force on Practice Guidelines (Writing Committee to Revise the 2002 Guidelines on Perioperative Cardiovascular Evaluation for Noncardiac Surgery) Developed in Collaboration With the American Society of Echocardiography, American Society of Nuclear Cardiology, Heart Rhythm Society, Society of Cardiovascular Anesthesiologists, Society for Cardiovascular Angiography and Interventions, Society for Vascular Medicine and Biology, and Society for Vascular Surgery. J Am Coll Cardiol 50: e159-e242 [Full Text]