Left ventricular geometric patterns in hypertensive Nigerians: a systematic review

Kamilu Karaye, Abdulrazaq G Habib

Abstract


Introduction: Several studies on left ventricular hypertrophy (LVH) and LV geometric patterns in hypertensive subjects
have been carried out in Nigeria, but the results vary widely. The present article aims to systematically review published
studies carried out in Nigeria on the prevalence and pattern of LV geometry in hypertensive subjects as determined using
echocardiography.
Methods: Relevant English language papers published up to 15th November 2012 were searched for in Medline, African
Journals on Line, Google Scholar and several other websites, and enquiries were made from colleagues. Study quality was
assessed using a condensed version of the Downs and Black checklist. LVH was defined in most of the studies as LV mass
index (LVMI) >96g/m2 in women and >116g/m2 in men, or LVMI >125g/m2 for both sexes.
Results: A total of 148 records were initially obtained after excluding duplicates, but 138 articles had to be excluded (126 for
lack of relevance; 12 abstracts for lack of full length articles) while data in the remaining 10 were extracted, further analysed
and discussed. Out of a total of 1722 persons in all the included studies, 621 (36.1%) subjects had LVH, while 496 (28.8%)
had concentric remodelling and the remaining 605 (35.1%) subjects had normal geometry. Of those with LVH, 321 (51.7%) of
them had eccentric hypertrophy while the remaining 300 (48.3%) had concentric hypertrophy.
Conclusion: The findings in the present study have important clinical implications in the choice of antihypertensive treatments
to control the blood pressure, induce regression of LVH and reduce overall cardiovascular morbidity and mortality, as
recommended in standard guidelines.

Full Text:

PDF HTML


DOI: https://doi.org/10.17987/icfj.v1i2.26

Copyright (c) 2015 Kamilu Karaye

Creative Commons License
This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.