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91.
Shin Yi Jang Eun Young Ju Eun Hee Huh Jung Hyun Kim Duk-Kyung Kim 《Journal of Korean medical science》2014,29(6):798-804
The aim of this study was to determine the normal value of brachial-ankle pulse wave velocity (baPWV) and carotid-femoral pulse wave velocity (cfPWV) according to age group, gender, and the presence of cardiovascular risk factors in healthy Koreans, and to investigate the association between PWV and risk factors such as prehypertension, dyslipidemia, smoking, and obesity. We measured an arterial stiffness in 110 normal subjects who were 20 to 69 yr-old with no evidence of cardiovascular disease, cerebrovascular accident or diabetes mellitus. The mean values of baPWV and cfPWV were 12.6 (±2.27) m/sec (13.1±1.85 in men, 12.1±2.51 in women; P=0.019) and 8.70 (±1.99) m/sec (9.34±2.13 in men, 8.15±1.69 in women; P=0.001), respectively. The distribution of baPWV (P<0.001) and cfPWV (P=0.006) by age group and gender showed an increase in the mean value with age. Men had higher baPWV and cfPWV than women (P<0.001). There was a difference in baPWV and cfPWV by age group on prehypertension, dyslipidemia, current smoking, or obesity (P<0.001). In multiple linear regression, age and prehypertension were highly associated with baPWV and cfPWV after adjustment for confounding factors (P<0.001). The present study showed that baPWV and cfPWV are associated with age, gender, and prehypertension in healthy Koreans.
Graphical Abstract
相似文献92.
王秋艳%黄金林%侯海生%陈少川 《中国心血管病研究杂志》2014,(9):789-792
目的 探讨增强型体外反搏治疗代谢综合征的临床疗效,观察增强体外反搏治疗对患者血液生化指标及动脉弹性的影响.方法 选取本院2012年1~12月收治的80例代谢综合征患者,其中50例近期未用药患者为A组,30例规律用药患者为B组,均给予增强型体外反搏治疗,并于治疗前后检测患者各项血液生化指标.同时选取30名健康受试者作为对照组,检测相同指标,并将检测结果与代谢综合征患者进行比较.结果 两组代谢综合征患者的血压、血糖、甘油三酯、胆固醇、ABI及baPWV水平均比对照组高,且差异有统计学意义(P<0.05).治疗后两组代谢综合征患者的血压、血液生化指标、ABI及baPWV均显著改善,与治疗前比较差异有统计学意义(P<0.05).结论 对代谢综合征患者开展增强型体外反搏治疗可显著缓解各项临床危险指标,并且能够促进动脉血管功能的改善. 相似文献
93.
目的探讨CT联合D-二聚体(D-D)在急性胰腺炎(acute pancreatitis,AP)诊断及预后评估中的应用价值。方法选取2016年10月~2018年12月我院收治的重症AP患者84例,所有患者入院后均完善腹部CT检查及血清D-D检测。根据Balthazar CT分级以C级为分界,将患者分为低级组(≤C级)与高级组(> C级);并以D-D=2.00μg/mL为分界,将患者分为低水平组(≤2.00μg/mL)和高水平组(>2.00μg/mL);对上述不同组间患者预后参数进行对比分析。结果 CT分级高级组住院时间明显长于低级组(P<0.05),死亡率明显高于低级组(P<0.05),两组ICU入住率、中转手术率对比无统计学差异(P>0.05)。D-D高水平组死亡率明显高于低水平组(P<0.05)。Pearson相关分析显示,D-D水平与Balthazar CT分级呈正相关(r=0.368,P<0.05)。ROC曲线分析显示,Balthazar CT分级、D-D及二者联合预测重症AP患者死亡的曲线下面积分别为0.660 (95%CI:0.507~0.813)、0.669 (95%CI:0.558~0.780)、0.757 (95%CI:0.614~0.900)。结论 Balthazar CT分级、D-D均可对重症AP患者预后进行判断,二者联合可提高预估价值。 相似文献
94.
《中国现代医生》2020,58(7):94-96+100
目的 探讨床边超声检查对危重症患者液体复苏的指导意义。方法 选取2018年3月~2019年7月收治的80例危重症患者作为研究对象,随机将研究对象分为床边超声组和对照组两组,每组各40例。床边超声组采用床边超声的测定参数值进行指导危重症患者的液体复苏治疗,对照组患者选择脉搏指示剂持续心排血量法(PICCO)对患者液体复苏治疗予以相关指导。两组患者均在早期进行液体复苏治疗,且均进行有效的综合治疗,最后比较患者液体复苏前后下腔静脉(IVC)内径、呼吸变异指数(RVI)、左室舒张末期容积(LVEDV);同时比较患者血管外肺水指数(EVLWI)、液体复苏前后的胸腔内血容量指数(ITBVI)、中心静脉压(CVP)以及两组患者液体复苏前后的心率、收缩压及舒张压、液体复苏治疗后各时间点即治疗后6 h、12 h、24 h的达标率。结果 患者进行液体复苏后,其中床边超声组的各参数除RVI均升高,两组患者的心率、收缩压及舒张压在复苏前差异无统计学意义(P0.05)。两组患者心率在复苏6 h后较复苏前明显下降,收缩压、舒张压较复苏前明显升高,差异有统计学意义(P0.05)。复苏24 h,床边超声组心率明显优于对照组,差异有统计学意义(P0.05)。结论 对危重症患者进行液体复苏采用床边超声具有重要的指导作用。 相似文献
95.
96.
Elaine Cristina Tolezani Valéria Costa-Hong Gustavo Correia Alfredo José Mansur Luciano Ferreira Drager Luiz Aparecido Bortolotto 《Arquivos brasileiros de cardiologia》2014,103(5):426-432
Background
Changes in the properties of large arteries correlate with higher cardiovascular risk. Recent guidelines have included the assessment of those properties to detect subclinical disease. Establishing reference values for the assessment methods as well as determinants of the arterial parameters and their correlations in healthy individuals is important to stratify patients.Objective
To assess, in healthy adults, the distribution of the values of pulse wave velocity, diameter, intima-media thickness and relative distensibility of the carotid artery, in addition to assessing the demographic and clinical determinants of those parameters and their correlations.Methods
This study evaluated 210 individuals (54% women; mean age, 44 ± 13 years) with no evidence of cardiovascular disease. The carotid-femoral pulse wave velocity was measured with a Complior® device. The functional and structural properties of the carotid artery were assessed by using radiofrequency ultrasound.Results
The means of the following parameters were: pulse wave velocity, 8.7 ± 1.5 m/s; diameter, 6,707.9 ± 861.6 μm; intima-media thickness, 601 ± 131 μm; relative distensibility, 5.3 ± 2.1%. No significant difference related to sex or ethnicity was observed. On multiple linear logistic regression, the factors independently related to the vascular parameters were: pulse wave velocity, to age (p < 0.01) and triglycerides (p = 0.02); intima-media thickness, to age (p < 0.01); diameter, to creatinine (p = 0.03) and age (p = 0.02); relative distensibility, to age (p < 0.01) and systolic and diastolic blood pressures (p = 0.02 and p = 0.01, respectively). Pulse wave velocity showed a positive correlation with intima media thickness (p < 0.01) and with relative distensibility (p < 0.01), while diameter showed a positive correlation with distensibility (p = 0.03).Conclusion
In healthy individuals, age was the major factor related to aortic stiffness, while age and diastolic blood pressure related to the carotid functional measure. The carotid artery structure was directly related to aortic stiffness, which was inversely related to the carotid artery functional property. 相似文献97.
Introduction
Hypertension is highly prevalent in black South Africans in which morbidity and mortality from stroke are on the increase. Elevated blood pressure and haemostatic markers can induce changes in blood rheology and endothelial function which could result in a procoagulant state that increases the risk for cerebrovascular disease. Information about the coagulation and fibrinolytic systems of people from African descent are limited. We therefore, investigated the haemostatic profile and its relationships with blood pressure in black South Africans.Materials and methods
We measured ambulatory blood pressure and haemostatic markers of 201 black and 208 white school teachers. The haemostatic markers included measurements representing coagulation and fibrinolysis (von Willebrand factor, fibrinogen, plasminogen activator inhibitor-1, fibrin D-dimer and clot lysis time).Results
Black participants displayed significantly higher blood pressure, von Willebrand factor, fibrinogen, plasminogen activator inhibitor-1 and D-dimer levels and longer clot lysis times (p ≤ 0.001). Single, partial and multiple regression analyses showed that systolic (p ≤ 0.011) and diastolic blood pressure (p = 0.010) correlated positively with D-dimer in black participants, while systolic (p ≤ 0.001) and daytime diastolic blood pressure (p = 0.011) correlated negatively with clot lysis time in white participants.Conclusion
The black population had a more prothrombotic profile, with higher levels of coagulation markers and inhibited fibrinolysis, than the white study participants. The positive association between blood pressure and elevated D-dimer in the blacks may contribute to the high prevalence of hypertension and related increased cardiovascular and cerebrovascular risk in this group. 相似文献98.
Lauren C. Nisbet Stephanie R. Yiallourou Gillian M. Nixon Sarah N. Biggs Margot J. Davey John Trinder Lisa M. Walter Rosemary S.C. Horne 《Sleep medicine》2013,14(11):1123-1131
Background
Surges in heart rate (HR) and blood pressure (BP) at apnea termination contribute to the hypertension seen in obstructive sleep apnea (OSA). Because childhood OSA prevalence peaks in the preschool years, we aimed to characterize the cardiovascular response to obstructive events in preschool-aged children.Methods
Clinically referred children aged 3–5 years were grouped by obstructive apnea–hypopnea index (OAHI) into the following: primary snoring (PS) (OAHI ? 1 event/h [n = 21]), mild OSA (OAHI > 1– ? 5 [n = 32]), and moderate to severe (MS) OSA (OAHI > 5 [n = 28]). Beat-to-beat pulse transit time (PTT), an inverse continuous indicator of BP changes, and HR were averaged during the two halves (early and late) and during the peak after (post) each obstructive event and were expressed as percentage change from late- to post-event.Results
We analyzed 422 events consisting of 55 apneas and 367 hypopneas. A significant post-event increase in HR and fall in PTT occurred in all severity groups (P < .05 for all). A greater response was associated with OSA, nonrapid eye movement sleep (NREM), cortical arousal, hypopneas, and oxygen desaturation (P < .05 for all).Conclusions
Obstructive events elicit acute cardiovascular changes in preschool children. Such circulatory perturbations have been implicated in the development of hypertension, and our findings complement previous studies to suggest a cumulative impact of snoring on the cardiovascular system from childhood into adulthood. 相似文献99.
《Sleep medicine》2013,14(12):1260-1265
BackgroundObstructive sleep apnea (OSA) is associated with increased cardiovascular morbidity and mortality which may be mediated by increased arterial stiffness and endothelial dysfunction. Continuous positive airway pressure (CPAP) therapy improves excessive daytime somnolence (EDS), but its effect on vascular function in patients without preexisting cardiovascular disease (CVD) is unclear.MethodsFifty-three patients with OSA defined as an apnea–hypopnea index (AHI) of ⩾15 and without CVD were recruited into a double-blind, randomized, placebo-controlled, crossover trial of 12 weeks of CPAP therapy, of whom 43 participants completed the study protocol. Arterial stiffness was assessed by measuring the augmentation index (AIx) and pulse wave velocity (PWV) by applanation tonometry and cardiovascular magnetic resonance imaging to determine aortic distensibility. Endothelial function was assessed by measuring vascular reactivity after administration of salbutamol and glyceryl trinitrate.ResultsCPAP therapy lowered systolic blood pressure (SBP) (126 mmHg [standard deviation {SD}, 12] vs 129 mmHg [SD, 14]; P = .03), with a trend towards reduced AIx (15.5 [SD, 11.9] vs 16.6 [SD, 11.7]%; P = .08) but did not modify endothelial function. When subjects with (n = 24) and without (n = 19) EDS were separately examined, no effect of CPAP therapy on vascular function was seen.ConclusionsIn patients without overt CVD, CPAP therapy had a nonsignificant effect on AIx and did not modify endothelial function. 相似文献
100.
David Gozal Fahed HakimLeila Kheirandish-Gozal 《Respiratory physiology & neurobiology》2013,185(1):177-185
Obstructive sleep apnea (OSA) is highly prevalent sleep disorder of breathing in both adults and children that is fraught with substantial cardiovascular morbidities, the latter being attributable to a complex interplay between intermittent hypoxia (IH), episodic hypercapnia, recurrent large intra-thoracic pressure swings, and sleep disruption. Alterations in autonomic nervous system function could underlie the perturbations in cardiovascular, neurocognitive, immune, endocrine and metabolic functions that affect many of the patients suffering from OSA. Although these issues have received substantial attention in adults, the same has thus far failed to occur in children, creating a quasi misperception that children are protected. Here, we provide a critical overview of the evidence supporting the presence of autonomic nervous system (ANS) perturbations in children with OSA, draw some parallel assessments to known mechanisms in rodents and adult humans, particularly, peripheral and central chemoreceptor and baroreceptor pathways, and suggest future research directions. 相似文献