title: Ultrasound evaluation of intima-media thickness of carotid arteries in adults with primary hypertension at Ibadan, Nigeria.
abstract: BACKGROUND
  Ultrasound measured Carotid Intima-Media Thickness (CIMT) is a simple and inexpensive tool for assessing the cumulative effects of hypertension on the carotid arterial walls. It is also an independent predictor of future myocardial infarction and stroke risk.
  
  
  OBJECTIVE
  This study compared ultrasound measured CIMT in hypertensive adults with non-smoking normotensive controls. It also documented variations in CIMT with subjects' age and sex.
  
  
  METHODS
  Hypertensives (120) of both sexes aged 18 years and above were recruited from the Hypertension Clinic at University College Hospital (UCH) Ibadan. Normotensive controls (120) were also recruited from the general public. The CIMT was measured on B- mode ultrasound using the technique of 'Multiple Carotid Sites Measurement'
  
  
  RESULTS
  Mean CIMT values were 0.756 mm ± 0.130 and 0.751 mm ± 0.129 for the hypertensive group and 0.638 mm ± 0.088 and 0.67 0mm ± 0.107 for the control group on the left and right sides respectively (P=0.000). Higher CIMT values were noted among male hypertensive subjects (P=0.030). CIMT values also showed positive correlation with subjects' age.
  
  
  CONCLUSIONS
  There was a significant difference in CIMT for hypertensives when compared with normotensives in the study area. CIMT also varies with subjects' age and sex.
authors.affiliation: Department of Radiology,University College Hospital, Ibadan,Oyo State, Nigeria.
authors.forename: E O
authors.initials: EO
authors.lastname: Umeh
authors.forename: A M
authors.initials: AM
authors.lastname: Agunloye
authors.forename: A J
authors.initials: AJ
authors.lastname: Adekanmi
authors.forename: A O
authors.initials: AO
authors.lastname: Adeyinka
mesh_terms: D000328:Adult; D000367:Age Factors; D000368:Aged; D000369:Aged, 80 and over; D002339:Carotid Arteries / Q000000981:diagnostic imaging* / Q000473:pathology; D059168:Carotid Intima-Media Thickness; D016022:Case-Control Studies; D000075222:Essential Hypertension; D005260:Female; D006801:Humans; D006973:Hypertension / Q000000981:diagnostic imaging* / Q000473:pathology; D008297:Male; D008875:Middle Aged; D009203:Myocardial Infarction / Q000209:etiology; D011446:Prospective Studies; D012307:Risk Factors; D012737:Sex Factors; D020521:Stroke / Q000209:etiology; D055815:Young Adult