title: [Comparison between the central and brachial blood pressure values in patients with hypertension undergoing cineangiocoronarography].
abstract: BACKGROUND
  Systolic blood pressure (SP) and pulse pressure (PP) rise gradually during the aging process as a consequence of a reduction in arterial elasticity. The measure of systemic arterial pressure (SAP) taken at the root of the aorta has been considered an independent determinant of cardiovascular mortality superior to the values of brachial SAP.
  
  
  OBJECTIVE
  To compare the values of SAP central to those of braquial SAP in patients of different age brackets who have systemic hypertension.
  
  
  METHODS
  We evaluated the central SAP at the root of the aorta and the brachial SAP in the left arm using the ocillometric method 244 hypertensive patients who had been submitted to cineangiocoronarography. Five groups of patients were constituted: Group I, 39-49 years-old (y.o.), n = 36; Group II, 50-59 y.o., n = 67; Group III, 60-69 y.o., n = 69; Group IV, 70-79 y.o., n = 46; Group V, > 80 y.o., n = 26.
  
  
  RESULTS
  When central SP was compared to brachial SP, it was possible to find significance in patients who were 50 y.o and upwards. It was not possible to find a statistical difference between central diastolic pressure and brachial except in patients between the ages of 60-69 y.o. When comparing central to brachial PP, we observed that central PP was significantly greater (between 11 and 15 mmHg) in all patient above the age of 50 y.o.
  
  
  CONCLUSIONS
  In older people, the values of SP and PP, taken directly at the root of the aorta, are superior to those obtained by indirect means from the brachial artery. These differences are significant from the age of 50 y.o. onwards.
authors.affiliation: UFU. (Intensive Care Unit Nurse Coronary/General ICU).
authors.forename: Bruno Bordin
authors.initials: BB
authors.lastname: Pelazza
authors.forename: Cesar Augusto Saldanha
authors.initials: CA
authors.lastname: Rosa
authors.forename: Sebastião Rodrigues
authors.initials: SR
authors.lastname: Ferreira Filho
mesh_terms: D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D001011:Aorta / Q000503:physiopathology*; D001794:Blood Pressure; D001916:Brachial Artery / Q000503:physiopathology*; D002932:Cineangiography; D017023:Coronary Angiography; D003430:Cross-Sectional Studies; D005260:Female; D006801:Humans; D006973:Hypertension / Q000503:physiopathology*; D008297:Male; D008875:Middle Aged; D013599:Systole