Home About us Editorial board Search Ahead of print Current issue Archives Submit article Instructions Subscribe Contacts Login 
Home Print this page Email this page
Users Online:: 316
Year : 2018  |  Volume : 21  |  Issue : 4  |  Page : 199-203

Target organ damage among subjects with high-normal blood pressure in a Nigerian tertiary health institution

1 Department of Medicine, Bayero University/Murtala Muhammad Specialist Hospital, Kano, Nigeria
2 Department of Medicine, Bayero University/Aminu Kano Teaching Hospital, Kano, Nigeria
3 Department of Medicine, Jos University Teaching Hospital, Jos, Nigeria

Correspondence Address:
Dr. H Saidu
Department of Medicine, Bayero University/Murtala Muhammad Specialist Hospital, Kano
Login to access the Email id

DOI: 10.4103/smj.smj_66_17

Rights and Permissions

Background: There is paucity of data on the relationship between high – normal blood pressure (BP) and target organ damage (TOD) in sub-Saharan Africa including Nigeria. This study therefore, aimed to assess target organ damage (TOD) among subjects with high – normal BP in comparison with hypertensives and subjects with optimal BP. Materials and Methods: The study was cross-sectional and comparative conducted at Aminu Kano Teaching Hospital, Kano on eligible subjects aged 18 years and above. Three groups comprising of randomly selected subjects (high -normal (group 1), hypertension (group 2) and optimal BP (group 3)), with each group having 100 in number were studied. Funduscopy and relevant investigations including transthoracic echocardiography were carried out. High – normal BP was defined as systolic BP of 130 -139mmHg and/or diastolic BP of 80-89mmHg. Results: The mean age of subjects in group 1 was 27.32 ± 8.20 years and 60% were female, 34.04±6.25 years for group 2 and 53% were female, and 52.81 ± 13.3 years for group 3 and 56% were female (P = < 0.001). The most prevalent TOD was left ventricular hypertrophy, present in 62% of hypertensives, 14% of those with high-normal BP and 2% of those with optimal BP(P = <0.001). Micro albuminuria and slight increase in creatinine were found in 12.9% and 6% of subjects with high-normal BP; 25.7% and 25% of hypertensives and 4.1% and 3% of subjects with optimal BP. The study found a significant progressive increase in both cardiovascular disease risk factors and target organ damage (TOD) as BP increased across the blood pressure categories from optimal BP to high – normal BP and to hypertension (P = <0.05). Conclusion: Subjects with high-normal BP had significantly higher prevalence of both TOD and cardiovascular disease risk factors than those with optimal BP but lower than hypertensives, suggesting that efforts to control BP should start early to reduce the complications of high BP.

Print this article     Email this article
 Next article
 Previous article
 Table of Contents

 Similar in PUBMED
   Search Pubmed for
   Search in Google Scholar for
 Related articles
 Citation Manager
 Access Statistics
 Reader Comments
 Email Alert *
 Add to My List *
 * Requires registration (Free)

 Article Access Statistics
    PDF Downloaded123    
    Comments [Add]    

Recommend this journal