BACKGROUND: We aimed this study to test the hypothesis that short-term blood pressure (BP) variability and abnormal patterns of diurnal BP variation, evaluated by ambulatory BP (ABP), predicts risk of incident cardiovascular disease (CVD) in patients with type 2 diabetes (T2DM). METHODS: ABP monitoring (ABPM) was performed in 300 patients with uncomplicated T2DM without known CVD and without BP medications, who were followed for 54 +/- 20 months. The relationships of different measures of BP variability, the presence of abnormal patterns of diurnal BP variation (nondipper, riser, or morning BP surge) and the standard deviations of awake and asleep ABP were determined. Cox proportional hazards models were used to estimate hazard ratios (HRs) and their 95% confidence intervals (CIs) before and after controlling for various covariates. RESULTS: The mean age was 67.8 +/- 9.6 years, 48% were male, 253 (84%) had a diagnosis of hypertension, and the mean of the standard deviations of awake systolic BP/diastolic BP (SBP/DBP) were 18 +/- 6/11 +/- 4 mm Hg, and those of sleep SBP/DBP were 13 +/- 5/9 +/- 3 mm Hg. During follow-up, there were 29 cardiovascular events. In multivariable analyses, the standard deviations of sleep SBP (HR = 1.08; 95% CI, 1.01-1.16, P < 0.05) and sleep DBP (HR = 1.13; 1.04-1.23, P < 0.01) were independently associated with incident CVD. Neither the nondipper and riser patterns nor the morning BP surge were associated with incident CVD events independently of clinic and 24-h BP levels. CONCLUSIONS: Abnormal diurnal BP variation was not a predictor of CVD in patients with T2DM. Night time BP variability was an independent predictor of future incidence of CVD, suggesting that this measure could reflect pathophysiology of T2DM.
BACKGROUND: We aimed this study to test the hypothesis that short-term blood pressure (BP) variability and abnormal patterns of diurnal BP variation, evaluated by ambulatory BP (ABP), predicts risk of incident cardiovascular disease (CVD) in patients with type 2 diabetes (T2DM). METHODS:ABP monitoring (ABPM) was performed in 300 patients with uncomplicated T2DM without known CVD and without BP medications, who were followed for 54 +/- 20 months. The relationships of different measures of BP variability, the presence of abnormal patterns of diurnal BP variation (nondipper, riser, or morning BP surge) and the standard deviations of awake and asleep ABP were determined. Cox proportional hazards models were used to estimate hazard ratios (HRs) and their 95% confidence intervals (CIs) before and after controlling for various covariates. RESULTS: The mean age was 67.8 +/- 9.6 years, 48% were male, 253 (84%) had a diagnosis of hypertension, and the mean of the standard deviations of awake systolic BP/diastolic BP (SBP/DBP) were 18 +/- 6/11 +/- 4 mm Hg, and those of sleep SBP/DBP were 13 +/- 5/9 +/- 3 mm Hg. During follow-up, there were 29 cardiovascular events. In multivariable analyses, the standard deviations of sleep SBP (HR = 1.08; 95% CI, 1.01-1.16, P < 0.05) and sleep DBP (HR = 1.13; 1.04-1.23, P < 0.01) were independently associated with incident CVD. Neither the nondipper and riser patterns nor the morning BP surge were associated with incident CVD events independently of clinic and 24-h BP levels. CONCLUSIONS: Abnormal diurnal BP variation was not a predictor of CVD in patients with T2DM. Night time BP variability was an independent predictor of future incidence of CVD, suggesting that this measure could reflect pathophysiology of T2DM.
Authors: Russell V Luepker; Fred S Apple; Robert H Christenson; Richard S Crow; Stephen P Fortmann; David Goff; Robert J Goldberg; Mary M Hand; Allan S Jaffe; Desmond G Julian; Daniel Levy; Teri Manolio; Shanthi Mendis; George Mensah; Andrzej Pajak; Ronald J Prineas; K Srinath Reddy; Veronique L Roger; Wayne D Rosamond; Eyal Shahar; A Richey Sharrett; Paul Sorlie; Hugh Tunstall-Pedoe Journal: Circulation Date: 2003-11-10 Impact factor: 29.690
Authors: Juan Ruiz; David Monbaron; Gianfranco Parati; Sophie Perret; Erik Haesler; Claude Danzeisen; Daniel Hayoz Journal: Hypertension Date: 2005-05-31 Impact factor: 10.190
Authors: Thomas G Pickering; John E Hall; Lawrence J Appel; Bonita E Falkner; John Graves; Martha N Hill; Daniel W Jones; Theodore Kurtz; Sheldon G Sheps; Edward J Roccella Journal: Circulation Date: 2005-02-08 Impact factor: 29.690
Authors: Hertzel C Gerstein; Michael E Miller; Robert P Byington; David C Goff; J Thomas Bigger; John B Buse; William C Cushman; Saul Genuth; Faramarz Ismail-Beigi; Richard H Grimm; Jeffrey L Probstfield; Denise G Simons-Morton; William T Friedewald Journal: N Engl J Med Date: 2008-06-06 Impact factor: 91.245
Authors: C Chi; S-K Yu; R Auckle; A A Argyris; E Nasothimiou; C Tountas; E Aissopou; J Blacher; M E Safar; P P Sfikakis; Y Zhang; A D Protogerou Journal: J Hum Hypertens Date: 2017-06-01 Impact factor: 3.012
Authors: Ana P Steinhorst; Sandro C Gonçalves; Ana T Oliveira; Daniela Massierer; Miguel Gus; Sandra C Fuchs; Leila B Moreira; Denis Martinez; Flávio D Fuchs Journal: Sleep Breath Date: 2013-10-03 Impact factor: 2.816