Comportamiento diferencial de la tensión arterial de pacientes con síncope neuro-cardiogénico en la fase inicial de la prueba de inclinación / Differential behaviour of blood pressure in patients with neurocardiogenic syncope during the initial stage of the tilt table test
Arch. cardiol. Méx
; 76(1): 59-62, ene.-mar. 2006.
Article
en Es
| LILACS
| ID: lil-569526
Biblioteca responsable:
BR1.1
ABSTRACT
Neurocardiogenic syncope (NCS) is diagnosed by means of a head-up tilt table tests (HUTT). This is a prolonged test although early outcome predictors are known. METHODS:
We conducted a study among patients engaged in a syncope study protocol. We performed HUTT in all of them and compared the basal arterial pressure with the arterial pressure at the end of a the 70 degrees tilting.RESULTS:
We performed 185 HUTT studies. Systolic blood pressure (BP) raised 0.9% among patients with a negative test, whereas patients with a positive HUTT showed a 2.3% decrease (p = 0.2) in the same measurement. Diastolic BP increased 34% among negative HUTT patients and 14.9% among patients with positive test (p = 0.02). We calculated a relative risk of 1.45 for positive test when the combination of systolic BD decrease and dyastolic increase was present, according to the percentage of change (IC95% 1.1 to 7.8).CONCLUSIONS:
The combination of systolic BP reduction and diastolic BP elevation at the end of the 70 degrees tilting is associated with an increased risk of having a positive HUTT. These changes might be related to differential sympathetic stimulation.
Texto completo:
1
Índice:
LILACS
Asunto principal:
Presión Sanguínea
/
Pruebas de Mesa Inclinada
/
Síncope Vasovagal
Tipo de estudio:
Etiology_studies
/
Guideline
/
Observational_studies
/
Prognostic_studies
/
Risk_factors_studies
Límite:
Female
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Humans
/
Male
Idioma:
Es
Revista:
Arch. cardiol. Méx
Asunto de la revista:
CARDIOLOGIA
Año:
2006
Tipo del documento:
Article