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Albina, G.; Fernandez Cisneros, L.; Laiño, R.; Nobo, U.L.; Ortega, D.; Schwarz, E.; Barja, L.; Lagos, R.; Giniger, A.; Ameriso, S.F. "Transcranial Doppler monitoring during head upright tilt table testing in patients with suspected neurocardiogenic syncope" (2004) Europace. 6(1):63-69
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Abstract:

The aim of the present study was to evaluate the mechanism of cerebrovascular autoregulation in patients with neurocardiogenic syncope using bilateral transcranial Doppler (TCD) monitoring during head upright tilt table testing (HUT). Two hundred and six patients were prospectively studied. One hundred and fifty-nine subjects (77%) had a prior history of syncope and 47 (23%) had presyncope. Ninety-nine patients (48%) had syncope or presyncope during HUT with a 76% fall in diastolic middle cerebral artery blood flow velocity (D-MCA-BFV). Systolic MCA-BFV (S-MCA-BFV) fell by 33%. Deepening of the dicrotic notch in the Doppler waveform always preceded the fall in D-MCA-BFV. Patients without syncope or presyncope (n=96) had smaller changes in cerebral blood flow velocities during HUT and only twenty-two subjects had transient deepening of the dicrotic notch. Eleven subjects had presyncope during HUT due to an exaggerated response to nitrates with progressive arterial hypotension without bradycardia and changes during TCD monitoring that were intermediate between positive and negative HUT. In conclusion, patients with neurocardiogenic syncope have changes in cerebral blood flow during the event. TCD monitoring during HUT helps to assess these alterations. © 2003. Published by Elsevier Ltd on behalf of The European Society of Cardiology.

Registro:

Documento: Artículo
Título:Transcranial Doppler monitoring during head upright tilt table testing in patients with suspected neurocardiogenic syncope
Autor:Albina, G.; Fernandez Cisneros, L.; Laiño, R.; Nobo, U.L.; Ortega, D.; Schwarz, E.; Barja, L.; Lagos, R.; Giniger, A.; Ameriso, S.F.
Filiación:Cardiovascular Inst. of Buenos Aires, Blanco Encalada 1543, 1428 Buenos Aires, Argentina
Institute for Neurological Research, Buenos Aires, Argentina
Palabras clave:Head upright tilt table test; Syncope; Transcranial Doppler; isosorbide dinitrate; adolescent; adult; aged; anamnesis; article; blood flow velocity; bradycardia; brain blood flow; cardiovascular autoregulation; child; controlled study; diastole; Doppler echography; drug response; female; head tilting; human; hypotension; major clinical study; male; medical assessment; patient monitoring; priority journal; syncope; tilt table test; brain circulation; Doppler echography; echography; middle aged; pathophysiology; physiology; tilt table test; Adolescent; Adult; Aged; Aged, 80 and over; Blood Flow Velocity; Cerebrovascular Circulation; Child; Female; Humans; Male; Middle Aged; Syncope, Vasovagal; Tilt-Table Test; Ultrasonography, Doppler, Transcranial
Año:2004
Volumen:6
Número:1
Página de inicio:63
Página de fin:69
DOI: http://dx.doi.org/10.1016/j.eupc.2003.09.009
Título revista:Europace
Título revista abreviado:Europace
ISSN:10995129
CODEN:EUROC
CAS:isosorbide dinitrate, 87-33-2
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_10995129_v6_n1_p63_Albina

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Citas:

---------- APA ----------
Albina, G., Fernandez Cisneros, L., Laiño, R., Nobo, U.L., Ortega, D., Schwarz, E., Barja, L.,..., Ameriso, S.F. (2004) . Transcranial Doppler monitoring during head upright tilt table testing in patients with suspected neurocardiogenic syncope. Europace, 6(1), 63-69.
http://dx.doi.org/10.1016/j.eupc.2003.09.009
---------- CHICAGO ----------
Albina, G., Fernandez Cisneros, L., Laiño, R., Nobo, U.L., Ortega, D., Schwarz, E., et al. "Transcranial Doppler monitoring during head upright tilt table testing in patients with suspected neurocardiogenic syncope" . Europace 6, no. 1 (2004) : 63-69.
http://dx.doi.org/10.1016/j.eupc.2003.09.009
---------- MLA ----------
Albina, G., Fernandez Cisneros, L., Laiño, R., Nobo, U.L., Ortega, D., Schwarz, E., et al. "Transcranial Doppler monitoring during head upright tilt table testing in patients with suspected neurocardiogenic syncope" . Europace, vol. 6, no. 1, 2004, pp. 63-69.
http://dx.doi.org/10.1016/j.eupc.2003.09.009
---------- VANCOUVER ----------
Albina, G., Fernandez Cisneros, L., Laiño, R., Nobo, U.L., Ortega, D., Schwarz, E., et al. Transcranial Doppler monitoring during head upright tilt table testing in patients with suspected neurocardiogenic syncope. Europace. 2004;6(1):63-69.
http://dx.doi.org/10.1016/j.eupc.2003.09.009