Steno Diabetes Center, Niels Steensensvej 1, 2820 Gentofte, Denmark.
Cardiovasc Diabetol. 2013 Aug 27;12:122. doi: 10.1186/1475-2840-12-122.
Non-invasive measurements of 24 hour ambulatory central aortic systolic pressure (24 h-CASP) and central pulse pressure (24 h-CPP) are now feasible. We evaluate the relationship between 24 h central blood pressure and diabetes-related complications in patients with type 1 diabetes.
The study was cross-sectional, including 715 subjects: 86 controls (C), 69 patients with short diabetes duration (< 10 years), normoalbuminuria (< 30 mg/24 h) without receiving antihypertensive treatment (SN), 211 with longstanding diabetes (≥ 10 years) and normoalbuminuria (LN), 163 with microalbuminuria (30-299 mg/24 h) (Mi) and 186 with macroalbuminuria (> 300 mg/24 h) (Ma).24 h-CASP and 24 h-CPP was measured using a tonometric wrist-watch-like device (BPro, HealthStats, Singapore) and derived using N-point moving average.
In C, SN, LN, Mi and Ma mean ± SD 24 h-CASP was: 114 ± 17, 115 ± 13, 121 ± 13, 119 ± 16 and 121 ± 13 mmHg (p < 0.001); and 24 h-CPP: 38 ± 8, 38 ± 7, 44 ± 10, 46 ± 11 and 46 ± 11 mmHg, (p < 0.001).Following rigorous adjustment (24 h mean arterial pressure and conventional risk factors), 24 h-CASP and 24 h-CPP increased with diabetes, albuminuria degree, previous cardiovascular disease (CVD), retinopathy and autonomic dysfunction (p ≤ 0.031).Odds ratios per 1 standard deviation increase in 24 h-CASP, 24 h-CPP and 24 h systolic blood pressure (24 h-SBP) were for CVD: 3.19 (1.68-6.05), 1.43 (1.01-2.02) and 2.39 (1.32-4.33), retinopathy: 4.41 (2.03-9.57), 1.77 (1.17-2.68) and 3.72 (1.85-7.47) and autonomic dysfunction: 3.25 (1.65-6.41), 1.64 (1.12-2.39) and 2.89 (1.54-5.42).
24 h-CASP and 24 h-CPP was higher in patients vs. controls and increased with diabetic complications independently of covariates. Furthermore, 24 h-CASP was stronger associated to complications than 24 h-SBP.The prognostic significance of 24 h-CASP and 24 h-CPP needs to be determined in follow-up studies.
ClinicalTrials.gov ID NCT01171248.
24 小时动态中心动脉收缩压(24 h-CASP)和中心脉压(24 h-CPP)的非侵入性测量现在已经成为可能。我们评估了 1 型糖尿病患者的 24 小时中心血压与糖尿病相关并发症之间的关系。
该研究为横断面研究,共纳入 715 例患者:对照组(C)86 例,糖尿病病程较短(< 10 年),尿白蛋白正常(< 30mg/24h)且未接受降压治疗(SN)69 例,糖尿病病程较长(≥ 10 年)且尿白蛋白正常(LN)211 例,微量白蛋白尿(30-299mg/24h)(Mi)163 例,大量白蛋白尿(> 300mg/24h)(Ma)186 例。使用一种腕戴式血压计(BPro,HealthStats,新加坡)测量 24 h-CASP 和 24 h-CPP,并使用 N 点移动平均值进行衍生。
在 C、SN、LN、Mi 和 Ma 中,24 h-CASP 的平均值 ± 标准差分别为:114 ± 17、115 ± 13、121 ± 13、119 ± 16 和 121 ± 13mmHg(p<0.001);24 h-CPP 分别为:38 ± 8、38 ± 7、44 ± 10、46 ± 11 和 46 ± 11mmHg(p<0.001)。在严格调整(24 h 平均动脉压和常规危险因素)后,24 h-CASP 和 24 h-CPP 随糖尿病、白蛋白尿程度、既往心血管疾病(CVD)、视网膜病变和自主神经功能障碍而增加(p ≤ 0.031)。24 h-CASP、24 h-CPP 和 24 h 收缩压(24 h-SBP)每增加 1 个标准差的优势比(OR)分别为 CVD:3.19(1.68-6.05)、1.43(1.01-2.02)和 2.39(1.32-4.33)、视网膜病变:4.41(2.03-9.57)、1.77(1.17-2.68)和 3.72(1.85-7.47)和自主神经功能障碍:3.25(1.65-6.41)、1.64(1.12-2.39)和 2.89(1.54-5.42)。
与对照组相比,患者的 24 h-CASP 和 24 h-CPP 更高,且独立于混杂因素随糖尿病并发症而增加。此外,24 h-CASP 与并发症的相关性强于 24 h-SBP。24 h-CASP 和 24 h-CPP 的预后意义需要在后续研究中确定。
ClinicalTrials.gov 注册号 NCT01171248。