Carotid Doppler sonography: additional tool to assess hemodynamic improvement after transcatheter aortic valve implantation

Carotid Doppler sonography: additional tool to assess hemodynamic improvement after transcatheter... PurposeThe aim of our study was to assess the arterial cerebral blood flow variations in patients with aortic valve stenosis, immediately after the transcatheter aortic valve implantation (TAVI).MethodsThe study population includes 62 consecutive patients who underwent TAVI for aortic valve stenosis (95%) and sugical bioprosthesis degeneration (5%). Carotid Doppler examination was performed recording blood flow, systolic peak velocity, time average mean velocity and mean acceleration time at baseline, after balloon aortic valvuloplasty, and within 10 min after the device release.ResultsA significant improvement of blood flow was recorded at the end of the procedure (from 315.05 ± 141.72 to 538.67 ± 277.46 ml/min; P < 0.00001). The systolic peak velocity and the time average mean velocity increased from 52.27 ± 14.29 to 78.89 ± 20.48 cm/s (P < 0.00001) and from 12.24 ± 4.74 to 21.21 ± 9 cm/s (P < 0.00001), respectively. Consensually, the mean acceleration time decreased from 0.22 ± 0.02 to 0.03 ± 0.02 s (P < 0.00001) after the procedure.ConclusionMonitoring of Doppler measurements may be a useful and noninvasive method to assess acutely the improvement of hemodynamic flow after TAVI, specifically for the cerebral district. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Journal of Cardiovascular Medicine Wolters Kluwer Health

Carotid Doppler sonography: additional tool to assess hemodynamic improvement after transcatheter aortic valve implantation

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Publisher
Wolters Kluwer
Copyright
© 2018 Italian Federation of Cardiology. All rights reserved.
ISSN
1558-2027
eISSN
1558-2035
D.O.I.
10.2459/JCM.0000000000000622
Publisher site
See Article on Publisher Site

Abstract

PurposeThe aim of our study was to assess the arterial cerebral blood flow variations in patients with aortic valve stenosis, immediately after the transcatheter aortic valve implantation (TAVI).MethodsThe study population includes 62 consecutive patients who underwent TAVI for aortic valve stenosis (95%) and sugical bioprosthesis degeneration (5%). Carotid Doppler examination was performed recording blood flow, systolic peak velocity, time average mean velocity and mean acceleration time at baseline, after balloon aortic valvuloplasty, and within 10 min after the device release.ResultsA significant improvement of blood flow was recorded at the end of the procedure (from 315.05 ± 141.72 to 538.67 ± 277.46 ml/min; P < 0.00001). The systolic peak velocity and the time average mean velocity increased from 52.27 ± 14.29 to 78.89 ± 20.48 cm/s (P < 0.00001) and from 12.24 ± 4.74 to 21.21 ± 9 cm/s (P < 0.00001), respectively. Consensually, the mean acceleration time decreased from 0.22 ± 0.02 to 0.03 ± 0.02 s (P < 0.00001) after the procedure.ConclusionMonitoring of Doppler measurements may be a useful and noninvasive method to assess acutely the improvement of hemodynamic flow after TAVI, specifically for the cerebral district.

Journal

Journal of Cardiovascular MedicineWolters Kluwer Health

Published: Mar 1, 2018

References

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