Seuils de pression artérielle ambulatoire pour la classification de l'hypertension
DOI :
https://doi.org/10.62438/tunismed.v104i08.6628Mots-clés :
Surveillance ambulatoire de la pression artérielle, Valeurs de reference, Diagnostic , HypertensionRésumé
Contexte : Des progrès considérables ont été réalisés dans la définition de seuils de pression artérielle ambulatoire (PAA) équivalents à ceux des mesures de pression artérielle au cabinet médical (MAPA). Cependant, des seuils de PAA standardisés pour les différents stades d’hypertension font encore défaut dans certaines populations, notamment en Tunisie. L’objectif de cette étude était d’établir des seuils de PAA pour différents degrés d’hypertension dans
la population tunisienne.
Méthodes : Il s’agissait d’une étude transversale menée auprès d’adultes tunisiens. Les participants ont subi une mesure de la pression artérielle à l’aide d’un sphygmomanomètre à mercure classique, suivie d’un enregistrement ambulatoire de la pression artérielle (MAPA) sur 24 heures. Les seuils de MAPA pour chaque grade d’hypertension ont été identifiés par rapport à la pression artérielle mesurée au cabinet médical (PAC) à l’aide d’une analyse de la courbe ROC (Receiver Operating Characteristic) afin de déterminer les valeurs seuils optimales.
Résultats : Au total, 403 participants ont été inclus, dont 274 hommes (68 %) et 129 femmes (32 %), d’un âge moyen de 49,01 ± 12,44 ans. Les seuils de pression artérielle au cabinet médical (OBPM) pour l’hypertension de grade 1, 2 et 3 sont respectivement de 140/90 mmHg, 160/100 mmHg et 180/110 mmHg. Concernant les mesures ambulatoires de la pression artérielle (ABPM), les seuils sur 24 heures sont de 127,5/75,5 mmHg, 136,5/82,5 mmHg et 146,5/88,5 mmHg pour les grades 1, 2 et 3, respectivement ; les seuils diurnes sont respectivement de 132,5/79,5 mmHg, 143,5/86,5 mmHg ...( résumé tronqué à 250 mots).
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