Solid and gaseous cerebral microembolization after biologic and mechanical aortic valve replacement: Investigation with multirange and multifrequency.

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Presentation transcript:

Solid and gaseous cerebral microembolization after biologic and mechanical aortic valve replacement: Investigation with multirange and multifrequency transcranial Doppler ultrasound Lorenzo Guerrieri Wolf, MD, Bikram P. Choudhary, MRCS, Yasir Abu-Omar, MRCS, David P. Taggart, MD (Hons), PhD, FRCS The Journal of Thoracic and Cardiovascular Surgery Volume 135, Issue 3, Pages 512-520 (March 2008) DOI: 10.1016/j.jtcvs.2007.07.062 Copyright © 2008 The American Association for Thoracic Surgery Terms and Conditions

Figure 1 Median number (25th–75th percentile) of total microemboli in biologic (group B) and mechanical (group M) aortic valve prostheses recipients, as detected 1 day before (−1) and 5 days (5) and 3 months (90) after isolated AVR. Comparison of number of total microemboli detected in group B: *1 day before and 5 days after surgery (P = .001); †1 day before and 3 months after surgery (P = .01); ‡5 days and 3 months after surgery (P = .04). Comparison of number of total microemboli detected in group M: §1 day before and 5 days after surgery (P < .0001); ∥1 day before and 3 months after surgery (P < .0002); #5 days and 3 months after surgery (P = .5). NS, Not significant. The Journal of Thoracic and Cardiovascular Surgery 2008 135, 512-520DOI: (10.1016/j.jtcvs.2007.07.062) Copyright © 2008 The American Association for Thoracic Surgery Terms and Conditions

Figure 2 Median number (25th–75th percentile) of solid microemboli in biologic (group B) and mechanical (group M) aortic valve prostheses recipients, as detected 1 day before (−1) and 5 days (5) and 3 months (90) after isolated AVR. Comparison of number of solid microemboli detected in group B: *1 day before and 5 days after surgery (P = .002); †1 day before and 3 months after surgery (P = .06); ‡5 days and 3 months after surgery (P = .02). Comparison of number of solid microemboli detected in group M: §1 day before and 5 days after surgery (P < .0002); ∥1 day before and 3 months after surgery (P < .0003); #5 days and 3 months after surgery (P = .6). NS Not significant. The Journal of Thoracic and Cardiovascular Surgery 2008 135, 512-520DOI: (10.1016/j.jtcvs.2007.07.062) Copyright © 2008 The American Association for Thoracic Surgery Terms and Conditions