[Blood pressure change and syncope during leg phlebography].
Nihon Igaku Hoshasen Gakkai Zasshi
; 54(9): 846-52, 1994 Aug 25.
Article
en Ja
| MEDLINE
| ID: mdl-7936982
Although syncope attacks such as black-out, faint consciousness, and cold sweat are sometimes experienced during leg phlebography, no study of their incidence and mechanism has been reported. We measured blood pressure noninvasively by using a Finapress with ECG monitor during overall examinations (21 cases, 33 limbs; male 8, female 13) following anamnesis. Age, sex, and past history of drug, syncope, leg phlebography, and other diseases were determined. All examinations were done in the upright position. Three cases (14.3%) and four limbs (12.1%) showed syncope attacks during leg phlebography. Syncope occurred after steps taken for the evaluation of venous return in two limbs, during infusion of contrast medium in one, and after infusion in the other. In all cases, the systolic blood pressure measurement during syncope was below 80 mmHg, and the sudden decrease of both systolic blood pressure (-83.0 +/- 22.0 mmHg) and heart rate (-29.5 +/- 5.0/min) suggested vasovagal reaction as a mechanism of syncope. Other causes of syncope including anaphylaxy, hyperventilation syndrome, seizure, and arrhythmia (except for bradycardia) were not found. There were also significant changes in blood pressure and heart rate in the nonsyncope group during leg phlebography that seemed to trigger vasovagal excitation. Premedication, contrast media, and position might be important factors and should be discussed further.
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Colección:
01-internacional
Base de datos:
MEDLINE
Asunto principal:
Síncope
/
Presión Sanguínea
/
Flebografía
/
Pierna
Límite:
Adult
/
Aged
/
Female
/
Humans
/
Male
/
Middle aged
Idioma:
Ja
Revista:
Nihon Igaku Hoshasen Gakkai Zasshi
Año:
1994
Tipo del documento:
Article
Pais de publicación:
Japón