Background : Hypertension is a disease characterized by end-organ
complications, leading to high morbidity and mortality in many cases.
People with untreated or uncontrolled hypertension often run the risk
of developing complications directly associated with the disease. Left
ventricular hypertrophy (LVH) has been shown to be a significant risk
factor for adverse outcomes both in patients with hypertension and in
the general population. We investigated the prevalence and pattern of
LVH in a treated hypertensive population at the University College
Hospital, Ibadan, Nigeria, using non-hypertensive subjects as control.
Design and Setting : A prospective observational study performed at the
University College Hospital, Ibadan, Nigeria. Methods : Patients had 6
visits, when at least one blood pressure measurement was recorded for
each hypertensive subject and average calculated for systolic blood
pressure (SBP) and diastolic blood pressure (DBP) separately. The
values obtained were used for stratification of the subjects into
controlled and uncontrolled hypertension. Subjects also had
echocardiograms to determine their left ventricular mass. Results :
LVH was found in 14 (18.2%) of the normotensive group, 40 (20.8%) of
the uncontrolled hypertensive group and 14 (24.1%) of the controlled
hypertensive group when left ventricular mass (LVM) was indexed to body
surface area (BSA). When LVM was indexed to height, left ventricular
hypertrophy was found in none of the subjects of the normotensive
group, while it was found present in 43 (22.4%) and 14 (24.1%) subjects
of the uncontrolled and controlled hypertensive groups, respectively.
Significant difference in the prevalence of LVH was detected only when
LVM was indexed to height alone. Conclusion : Clinic blood pressure is
an ineffective way of assessing BP control. Thus in apparently
controlled hypertensive subjects, based on office blood pressure,
cardiac structural changes do remain despite antihypertensive therapy.
This population is still at risk of cardiovascular events.arri\ue8re-plan: l\u2019hypertension est une maladie
caract\ue9ris\ue9e par l\u2019orgue de fi n complications menant
\ue0 \ue9lev\ue9 de morbidit\ue9 et mortalit\ue9 dans de
nombreux cas. Personnes avec l\u2019hypertension non trait\ue9e ou
non contr\uf4l\ue9e souvent risquent de d\ue9velopper
complications directement associ\ue9es \ue0 la maladie. Laiss\ue9
ventriculaire hypertrophie (LVH) a \ue9t\ue9 d\ue9montr\ue9 un
facteur de risque signifi catif pour les effets n\ue9gatifs
r\ue9sultats tant chez les patients atteints de l\u2019hypertension
et de la population g\ue9n\ue9rale. Nous avons a enqu\ueat\ue9
sur la pr\ue9valence et le mod\ue8le de LVH dans un trait\ue9
hypertendues population au University College Hospital, \ue0
l\u2019aide Ibadan, Nigeria non-hypertendues des sujets comme
contr\uf4le. conception et la confi guration: A \ue9ventuel
\ue9tude d\u2019observation effectu\ue9e \ue0 la University
College Hospital, Ibadan, Nigeria. m\ue9thodes: Patients avaient six
visites o\uf9 au moins un sang mesure de pression a \ue9t\ue9
enregistr\ue9e pour chaque sujet hypertendues et moyenne
calcul\ue9s s\ue9par\ue9ment pour SBP et DBP. Les valeurs
obtenues ont \ue9t\ue9 utilis\ue9es pour stratifi cation des
sujets dans l\u2019hypertension contr\uf4l\ue9e et
incontr\uf4l\ue9e. Sujets ont \ue9galement echocardiograms pour
d\ue9terminer leur masse ventriculaire gauche. r\ue9sultats: LVH a
\ue9t\ue9 trouv\ue9 en 14(18.2%) de la groupe normotensive,
40(20.8%) de groupe de hypertendues non contr\uf4l\ue9es et
14(24.1%) de hypertendues contr\uf4l\ue9e groupe lorsque
quitt\ue9 masse ventriculaire (LVM) a \ue9t\ue9 index\ue9e
\ue0 corps surface (BSA). Lorsque LVM a \ue9t\ue9 index\ue9
\ue0 hauteur, laiss\ue9 ventriculaire hypertrophie a \ue9t\ue9
trouv\ue9 dans aucun du groupe normotensive, bien qu\u2019il a
\ue9t\ue9 constat\ue9 pr\ue9sents dans les 43(22.4%) et
14(24.1%) de hypertendues non ma\ueetris\ue9e et
contr\uf4l\ue9e groupes respectivement. \uc9tait de
diff\ue9rence signifi cative dans la pr\ue9valence de la LVH
d\ue9tect\ue9s uniquement lorsque LVM a \ue9t\ue9 index\ue9
\ue0 hauteur alone. conclusion: clinique art\ue9rielle est un moyen
ineffi cace de mesurer le contr\uf4le de BP. Ainsi en sujet
hypertendues apparemment contr\uf4l\ue9e bas\ue9e sur la pression
art\ue9rielle de bureau, des changements structurels cardiaques
restent malgr\ue9 th\ue9rapie antihypertensive. Cette population
est toujours \ue0 risque de maladies cardiovasculaires
\ue9v\ue9nements