Ankle-brachial index and brachial-ankle pulse wave velocity are risk factors for ischemic stroke in patients with type 2 diabetes

The incidence of ischemic stroke in patients with diabetes is increasing. While brachial-ankle pulse wave velocity （BaPWV） and ankle-bra- chial index （ABI） are known to be associated with ischemic cardiovascular and cerebrovascular diseases, whether these measures predict the risk of ischemic cerebrovascular disease in diabetic patients remains unclear. 117 patients with type 2 diabetes were enrolled in this study. According to the results of head magnetic resonance imaging, the patients were divided into a diabetes-only group （n = 55） and a diabetes and ischemic stroke group （n = 62）. We then performed ABI and BaPWV examinations for all patients. Compared with the diabe- tes-only group, we found decreased ABI and increased BaPWV in the diabetes and ischemic stroke group. Multivariate logistic regression analyses revealed that BaPWV and ABI were risk factors for ischemic stroke in patients with type 2 diabetes. Our findings indicate that decreased ABI and increased BaPWV are objective indicators of increased risk of ischemic stroke in patients with type 2 diabetes.

Ankle-brachial index as a predictor of all-cause and cardio- vascular disease mortality in 3733 Chinese patients with high cardiovascular risk

目的将在在高 CVD 风险的中国病人估计在所有原因和心血管的疾病(CVD ) 死亡和脚关节臂的索引(ABI ) 的 1 年风险之间的协会。完全，有高 CV 的 3733 个病人冒险的方法在基线有双边的 ABI 大小并且被跟随在上面为 1-1.5 年。病人们被划分到四个组：1 ) 冠的心疾病(CHD ) ；2 ) ischemic 击() ；3 ) 糖尿病 mellitus (DM ) ；4 ) 很高的风险组(VHR ) ，低 ABI 是被定义 < 0.9。3179 个病人全部的结果 A 被分析。低 ABI 的流行是 28.1% 。在 1 年，所有原因死亡是 8.7% ，和 27.6% 对 CVD 可归因；死亡由于 CV 事件是 4.8% 和 1.5% 。在调整另外的风险因素以后，低 ABI 的危险比率为所有原因死亡是 1.623 并且 2.304 为 CVD 死亡。在有或没有低 ABI 的病人类似，分别地在四 groups.Conclusion ABI 被发现是死亡的一个强壮、独立的预言者。有低 ABI 的病人有所有原因死亡和 CVD 死亡的实质地增加的风险。

Screening of Peripheral Artery Disease by Systematic Measurement of Ankle-Brachial Index among Diabetic Patients in Dakar

Introduction: The peripheral artery disease (PAD) is one of the chronic and frightening vascular complications of the diabetes whose tracking can be done by the Ankle-Brachial Index (ABI) measurement. We conducted in this context a study which consisted in measuring the ABI among hospitalized diabetic patients at Teaching Hospital of Pikine in Dakar, over 18 months’ duration. The aim was to determine the prevalence and evaluate factors correlated to the presence of the PAD. Patients and Method: This cross-sectional descriptive study interested the whole of diabetic patients hospitalized in Internal Medicine/Endocrinology Department, from January 2013 to June 2014. We carried out a complete clinical examination associated with ABI measurement by a Doppler probe for each included patient after having collected the clinical and paraclinical data. Results: Our population of study comprised 209 diabetic patients with a female predominance (126, 60.3%). The sex-ratio man/woman was 0.6. The median age of the population of study was 54 ± 2 years. In our series, 157 (75.1%) patients discovered their diabetes with the waning of an affection while the 52 (24.9%) other patients discovered their diabetes at the time of a systematic assessment. The PAD appeared by an intermittent claudication among 38 patients (18.2%). The ABI was normal for 126 patients (60.3%). The ABI was low for 51 patients (24.4%), unilateral in 3.8% of cases and bilateral in 20.6% of cases. The ABI was high among 32 patients (15.3%), unilateral in 7.2% of cases and bilateral in 8.1% of cases. The ABI extremes values were 0.11 and 2. In the population of study, 46 patients (22%) had a well-compensated PAD. The PAD was low compensated for 3 patients (1.4%) and severe for 2 patients (1%). The ABI was more frequent and significantly among women than men, with 32 cases (25.4%) against 19 (22.9%) cases (p = 0.021). The proportion of low ABI was more important among patients whose diabetes had evolved for more than 5 years (42.3% of cases) with a peak of frequency in the duration of 6 - 10 years (47.7% of cases). Conclusion: The PAD global prevalence among hospitalized diabetic patients appeared high with 24.4% patients presenting low ABI. Its early diagnosis among subjects at risk as for our study population allowed identifying asymptomatic subjects having another cardiovascular damage. Thus, the screening of obstructive arteriopathy of lower limb PAD by the measurement of ABI should be applied to all diabetic patients for a better assessment of atherosclerotic complication.

Association of Race and Change in Ankle-Brachial Index: The Atherosclerosis Risk in Communities (ARIC) Cohort

Objective: This study evaluates the association of self-reported race with change in ankle-brachial index (ABI) over time and modification of this association by paraoxonase gene (PON1, PON2 and PON3) single nucleotide polymorphisms (SNPs). Methods: This longitudinal study included 11,992 (N = 2952 Black, N = 9040 White) participants from the Atherosclerosis Risk in Communities (ARIC) cohort with PON genotyping. Mixed-effects models examined whether race was associated with change in ABI over time after adjustment for known peripheral artery disease (PAD) risk factors. Results: Change in ABI over time differed between Whites and Blacks (race-time interaction, p < 0.0001). Stratified analyses showed that ABI values were better in both Blacks and Whites who completed high school or more education compared to those who completed less education. None of the PON SNPs met the significance level (p < 0.001) after Bonferroni correction for multiple comparisons. Conclusions: ABI differences by race were small and although statistically significant, may not be clinically significant. Change in ABI over time varies by race and may be modified by education. Results suggest that higher education may influence the lifestyle and behavioral choices contributing to better ABI in both Blacks and Whites. Further studies are needed to confirm this observation.

Pulse palpation and limited joint mobility examination are better indicators than oscillometric measurement for diagnosing abnormal ankle-brachial index

Background: Peripheral artery disease (PAD) is the least recognized form of atherosclerosis and may even result in amputation if the diagnosis is delayed. Manual pulse palpation is the traditional way to diagnose PAD. Doppler ultrasonographic measurement of ankle-brachial index (ABI) is the gold standard diagnosing method but requires training and is not necessarily available as an outpatient procedure. Using automated oscillometric blood pressure devices has been suggested as an easier method for measuring the ABI. Methods: A single observer palpated the arterial dorsalis pedis, examined hand joints and measured the ABI of one hundred diabetic patients using both Doppler and oscillometric methods. The purpose of this study was to compare the oscillometric method and the manual diagnosing methods to the gold standard method of using a hand held Doppler device for measuring the ABI and detecting PAD. Results: ABI was abnormal in 24 patients (24%) (22 males, 2 females) when measured with the Doppler method. Of these 24 patients, the oscillometric method would have missed 12 giving 12 false negatives. We found that the sensitivity of the oscillometric method was 50.0% and specificity 90.8%. Clinical examination with palpation of ADP combined with limited joint mobility (LJM) scoring would have missed only four cases. Conclusions: Although the oscillometric method is easy and accessible, it is not sensitive enough to be used as the only method in measuring ABI. The simple and inexpensive ADP pulse palpation combined with testing for LMJ was able to find 20 of the 24 (83%) patients with an abnormal ABI measured by Doppler stethoscope.

Analysis of Ankle-Brachial Index, Waist-Hip Ratio, Ejection-Fraction, Obesity, Smoking, Alcohol Habits, Diabetes and Hypertension as Independent Predictors of Complexity and Severity of Coronary Artery Disease

Background: The present study was conducted to examine the association between various coronary risk factors and clinical parameters, with special emphasis on ankle-brachial index, in predicting the severity and complexity of coronary artery disease. Methods: Patients diagnosed with coronary artery disease at our hospital between September-2012 and December-2014 were examined in this study. Selected patients were screened for cardiovascular risk factors including diabetes, hypertension, smoking, and alcohol habits as well as for clinical parameters including body-mass index, waist-hip ratio, ankle-brachial index, and ejection fraction. All patients underwent coronary angiography and were evaluated for severity of coronary artery disease (based on number of vessels involved) and complexity of coronary angiographic lesions (measured by computer-assisted Syntax score calculator). The collected data were analyzed to determine the role of cardiovascular risk factors and clinical parameters as predictors of complexity and severity of coronary artery disease. Results: A total of 211 patients (mean age: 54.64 ± 9.9 years;81% males) with coronary artery disease were analyzed. Findings revealed that diabetes mellitus (p < 0.001), hypertension (p < 0.001), smoking habits (p = 0.036), and low ankle-brachial index (p < 0.001) were independent predictors of complex coronary artery disease as measured by Syntax score. Significant associations were also evident between severity of coronary artery disease and diabetes mellitus (p < 0.001), hypertension (p < 0.001), and ankle-brachial index (p < 0.001). Conversely, other cardiovascular risk factors including body-mass index, alcohol habits, wait-hip ratio, and ejection fraction did not exhibit significant associations with severity and complexity of coronary artery. Conclusions: The early diagnosis of coronary artery can be predicated by evaluating diabetes, hypertension, and smoking habits in patients presenting with acute coronary syndrome. In addition, ankle-brachial index can be used as an effective non-invasive bed-side tool, as an alternative to Syntax score, in predicting the severity and complexity of coronary artery disease.

Association between Systolic Blood Pressure Difference ≥10 mm Hg and Ankle-Brachial Index

Background: In new outpatients, blood pressure should be measured in both arms. A previous study reported that an inter-arm systolic blood pressure difference (ΔSBP) of ≥10 mm Hg is associated with an increased risk of mortality. Aim: The aim was to identify the associations with absolute values of ΔSBP (|ΔSBP|) ≥10 mm Hg. Subjects and Methods: This study included 2481 patients. Patients with a body mass index ≥25 kg/m2 were defined as obese. The group of A was defined as following: ankle-brachial index (ABI) was <0.9 or ≥1.3. ΔSBP was expressed as right arm BP minus left arm BP. |ΔSBP| ≥10 mm Hg were analyzed using multivariate logistic analysis. Results: |ΔSBP| ≥10 mm Hg was found in 6.0% of patients and |ΔSBP| < 5 mm Hg in 80.4%. In multivariate analysis, the odds ratios (ORs) of the associations with |ΔSBP| ≥10 mm Hg were significantly associated with abnormal ABI and obesity regardless of sex and age. Moreover, the OR of the combined effects of abnormal ABI and obesity was higher than that of abnormal ABI and obesity alone. Conclusion: |ΔSBP| ≥10 mm Hg was associated with abnormal ABI and obesity. In a primary care setting, blood pressure should be actively measured in both arms. This study suggests that the associations with |ΔSBP| ≥10 mm Hg may be a useful part of screening for abnormal ABI.

New Approach to Measuring the Ankle and Toe Brachial Indices as New Markers for Early Detection of Lower Extremity Peripheral Artery Disease

Background: Lower extremity Peripheral artery disease (PAD) is caused by atherosclerosis, or Plaque buildup, that reduces the blood flow to the legs and feet. PAD affects approximately 230 million adults worldwide and is associated with an increased risk of coronary heart disease, stroke, and leg amputation. The first-line method for diagnosis of PAD is the Ankle Brachial Index (ABI), which is the ratio of ankle to brachial higher systolic pressure measured in ankles and arms. The Toe Brachial Index (TBI), which is the ratio of the toe systolic pressure to brachial higher systolic pressure measured in both arms, is considered to be an alternative to the ABI in screening for PAD. The ABI and TBI are measured on the right and left side, and the lower of these numbers is the patient’s overall ABI and TBI. Clinical studies and meta-analysis reviews have shown that the conventional ABI measurement, which uses a cuff, and handheld sphygmomanometer and continuous-wave Doppler tracings, provides an acceptable-to-high specificity level but low sensitivity when compared with vascular color Doppler ultrasound, and/or angiography methods. Another study has shown that the TBI measurement has greater sensitivity but lower specificity than the ABI when compared with vascular color Doppler ultrasound diagnostic based on waveforms. The aim of this clinical study was to evaluate the specificity and sensitivity of the VasoPad System comparing its results to the vascular color doppler ultrasound waveforms. Materials and Methods: The VasoPad System is an automated device using the pulse wave method to measure the arms and ankles dorsalis and tibial posterior artery blood pressures, the photoplethysmography second derivative (PTGSD) to estimate the toe systolic pressure, a patented photoplethysmography (PTG) index marker and volume plethysmography via cuffs during deflation. Vascular Color Doppler ultrasound can diagnose stenosis through the direct visualization of atherosclerosis or plaques and through waveform analysis. The vascular color Doppler ultrasound provides 3 waveform types. The type 1, triphasic waveform is normal blood flow and no atherosclerosis or plaque, the type 2, diphasic waveform is seen when there are atherosclerosis plaques, but normal blood flow, and the type 3, monophasic waveform reflects stenosis with diameter reduction > 50%. Results: The sum of the overall ABI and TBI VasoPad values, called Sum of Brachial Indices (SBI), gave a specificity of 88.89% and sensitivity of 100% for detecting vascular color Doppler ultrasound biphasic and monophasic waveforms versus triphasic waveforms with a cutoff ≤ 1.36 (P Conclusion: The VasoPad was useful for detecting PAD, which is fully defined as having vessel stenosis > 50% (Doppler monophasic waveforms) but also early stage of atherosclerosis plaque of the lower extremities (Doppler biphasic waveforms). The VasoPad method provided a remarkable sensitivity of 100% and a specificity level similar to those of the conventional ABI test method compared with the vascular color Doppler ultrasound. In addition to being useful to screen and detect PAD, the VasoPad offers early detection of lower extremity atherosclerosis, with normal blood flow (Doppler biphasic waveforms), which could provide greater treatment options and thus reduce the overall number of lower extremity complications.

Importance of Ankle/Brachial Pressure Index in Saudi Patients with Coronary Artery Disease

Background: The ankle/brachial pressure index (ABPI) has been shown to be a good marker of systemic atherosclerosis and a powerful predictor of cardiovascular morbidity and mortality. The objective of this study was to determine the importance of measuring ABPI in Saudi patients with coronary artery disease (CAD). METHODS: This is a hospital based cross-sectional study which was conducted on all Saudi patients who underwent coronary angiography without symptoms of peripheral arterial disease at King Fahd Hospital of the University, Al-Khobar Saudi Arabia. All patients underwent measurement of their ABPI. The study was carried out between December 2010 and November 2011. RESULTS: During the study period, two hundred and five patients were included. Fifty-nine (28.8%) patients were Group II (ABPI ≤ 0.90) and the rest was Group I (ABPI > 0.90). Significant correlation was also found between low ABPI and the extent of CAD (mean number of arteries involved in Group I was 1.78 ± 0.83 compared to 2.10 ± 0.736 in Group II p = 0.011). Nevertheless, the correlation between low ABPI, and the severity of presentation of CAD were also significant (Incidence of myocardial infarction with congestive heart failure was 0.5% in Group I compared to 12% in Group II p CONCLUSION: The ABPI is an important prognostic indicator for Saudi patients with CAD.

Risk factors and ankle brachial indexes in cerebral infarction combined with peripheral arterial disease

BACKGROUND: Ankle brachial index (ABI) is widely involved in researches and clinical application of peripheral vascular injury of patients with diabetes mellitus (DM); however, the application in cerebral infarction (CI) is rare. OBJECTIVE: To investigate the possible risk factor of cerebral infarction plus peripheral arterial disease (PAD), compare metabolic characteristics of patients who having CI plus PAD or only having CI, and understand the significance of ABI on screening and diagnosing CI plus PAD of lower limb. DESIGN: Contrast observation based on CI patients. SETTING: Department of Neurology, Nanxishan Hospital of Guangxi Zhuang Autonomous Region. PARTICIPANTS: A total of 124 CI patients were selected from Department of Neurology, Nanxishan Hospital of Guangxi Zhuang Autonomous Region from July 2005 to April 2006, including 72 males and 52 females aged from 45 to 88 years. All patients met the diagnostic criteria of cerebrovascular disease established by National Academic Conference of Cerebrovascular Diseases in 1995 and determined as cerebral infarction with MRI or CT examination. All patients provided informed consent. There were 46 cases (37.2%) with CI plus PAD and 78 cases (62.8%) only with CI. METHODS: Blood pressure of bilateral ankles and upper extremities was measured at plain clinostatism with DINAMAP blood pressure monitor (GE Company). The ratio between average systolic pressure of lateral ankle and average systolic pressure of both upper extremities was regarded as ABI. The normal ABI was equal to or more than 0.9. If ABI < 0.9 occurred at one side, patients were diagnosed as PAD. On the second morning after hospitalization, blood was collected to measure fasting blood glucose (FBG), 2-hour postprandial blood glucose (PBG2h), glycosylated hemoglobin (HbA1c), triglycerides (TG), total cholesterol (TC), high-density lipoprotein cholesterol (HDL-C) and low-density lipoprotein cholesterol (LDL-C). Among them, blood glucose, lipid and other biochemical markers were measured with enzyme chemistry assay and HbA1c was measured with HbA1c meter based on high liquid phase. Measurement data and enumeration data were compared with t test and Chi-square test, and multiple factors were dealt with Logistic regression analysis and multivariate linear regression analysis. MAIN OUTCOME MEASURES: Results of correlation between ABI and metabolic markers with multivariate linear regression analysis; risk factors of CI plus PAD with Logistic regression analysis; comparisons of metabolic markers between PAD and non-PAD patients. RESULTS: All 124 patients with acute CI were involved in the final analysis. ① Comparisons of metabolic markers: Levels of serum LDL-C and uric acid (UA) were higher of PAD patients than those of non-PAD patients (t =2.051 9, 3.339 1, P < 0.05); however, there were no significant differences among other metabolic markers (P > 0.05). ② Results of multivariate linear regression analysis: PBG2h, LDL-C and UA were obvious correlation with ABI of posterior tibial artery of lower limb and dorsal pedis artery (partial regression coefficient = -0.231 to -1.010, P < 0.05). ③ Risk factors of CI plus PAD with Logistic regression analysis: Age, smoking history, sum of CI focus (≥3) and LDL-C were independent risk factor of CI plus PAD (OR =1.524-5.422, P < 0.05-0.01). CONCLUSION: ① Levels of serum LDL-C and UA of patients with CI plus PAD are high. ② ABI of lower limbs is correlation with PBG2h, LDL-C and UA. In addition, measuring ABI is beneficial for early diagnosing PAD of lower limbs of patients who have poorly controlled blood glucose, abnormal lipid and poor renal function. ③ Age, LDL-C and sum of CI focus (≥3) are independent risk factors of CI plus PAD. It is of significance for screening non-PAD patients to evaluate risk degrees and prognosis and select therapeutic methods based on ABI measurement.

踝肱指数联合血清25-羟维生素D水平对2型糖尿病下肢血管病变的诊断价值

目的 探讨踝肱指数(ABI)联合血清25-羟维生素D[25(OH)D]水平对2型糖尿病下肢血管病变的诊断价值。方法 选择2018年7月至2021年1月安徽省亳州市人民医院收治的179例2型糖尿病患者,根据是否发生下肢血管病变将其分为未病变组(106例)与病变组(73例)。分析2型糖尿病患者发生下肢血管病变的影响因素,分析ABI联合血清25(OH)D水平对其的诊断价值。结果 病变组年龄、糖化血红蛋白、低密度脂蛋白胆固醇高于非病变组,白蛋白、ABI、血清25(OH)D水平低于非病变组(P<0.05)。多因素分析结果显示,年龄(OR=2.843,95%CI:1.250~6.468)、糖化血红蛋白(OR=3.056,95%CI:1.343~6.951)、ABI (OR=2.724,95%CI:1.197~6.196)、血清25(OH)D水平(OR=3.979,95%CI:1.749~9.051)为2型糖尿病患者发生下肢血管病变的影响因素(P<0.05)。ABI、血清25(OH)D水平联合预测2型糖尿病下肢血管病变的曲线下面积高于二者单独预测(P<0.05)。结论 ABI联合血清25(OH)D水平对2型糖尿病患者发生下肢血管病变具有一定的诊断价值,临床中应予以重视。

血浆致动脉硬化指数与臂-踝脉搏波传导速度在早发冠心病发生及其冠状动脉病变程度中的评估价值

目的探讨血浆致动脉硬化指数(AIP)与臂-踝脉搏波传导速度(ba-PWV)在早发冠心病(PCAD)的发生及其冠状动脉病变程度中的评估价值。方法收集2020年12月至2021年12月因胸痛疑诊冠心病在新疆医科大学第一附属医院住院行冠状动脉造影(CAG)检查且男性<55岁,女性<65岁的患者336例,根据CAG确诊早发冠心病(PCAD)组163例,其中急性冠状动脉综合征92例(56.4%),稳定型冠心病71例(43.6%),未达冠心病诊断标准的173例患者设为对照组。又根据Gensini评分分为A组(0分)129例、B组(1-14分)126例、C组(>14分)81例。对各组间一般临床资料与相关实验室检查进行统计学分析。采用logistic回归模型筛选PCAD的独立危险因素,并进一步分析AIP及ba-PWV对PCAD的诊断价值。结果与对照组相比,PCAD组AIP、ba-PWV等均明显偏高,差异具有统计学意义(P<0.05)。相关分析显示,AIP、ba-PWV与Gensini评分均呈正相关(rs分别为0.321、0.440,均P<0.05)。Logistic多因素回归分析显示,ba-PWV、AIP、吸烟、糖尿病、Hcy等均为PCAD的独立危险因素(均P<0.05);以AIP联合ba-PWV绘制的ROC曲线下面积为0.780(95%CI 0.730~0.830,P<0.05),敏感度和特异度分别为70.60%、77.50%。结论AIP及ba-PWV均为PCAD的独立危险因素,二者联合时可以提高诊断PCAD的敏感度,且二者与冠状动脉病变程度均呈正相关。

四逆散治疗糖尿病周围神经病变的效果及对震动感觉阈值的影响

目的 研究四逆散治疗糖尿病周围神经病变的效果及对震动感觉阈值(VPT)的影响。方法 纳入2018年3月至2023年3月我院收治的80例糖尿病周围神经病变患者,根据随机数字表法将其分为对照组、观察组,各40例。对照组采用常规治疗(甲钴胺联合依帕司他),观察组在此基础上加用四逆散治疗。比较两组的治疗效果。结果 观察组的治疗总有效率高于对照组(P<0.05)。治疗后,两组的空腹血糖(FPG)、餐后2 h血糖(2 h PG)水平及糖化血红蛋白(HbA1c)均显著降低,且观察组低于对照组(P<0.05)。治疗后,两组的中医证候积分、多伦多临床评分系统(TCSS)评分均显著降低,且观察组低于对照组(P<0.05)。治疗后,两组的VPT显著降低,臂踝指数(ABI)显著升高,且观察组优于对照组(P<0.05)。两组的不良反应总发生率比较,差异无统计学意义(P>0.05)。结论 四逆散治疗糖尿病周围神经病变的效果显著,可缓解患者的临床症状,调节血糖水平,修复受损神经功能,具有较高安全性。

Manifestation of lower extremity atherosclerosis in diabetic patients with high ankle-brachial index

Background The ankle brachial index （ABI） is a simple, inexpensive, noninvasive tool that correlates well with angiographic disease severity and functional symptoms. The aim of this study was to identify the manifestation of lower extremity atherosclerotic lesions in patients with high ABI by retrospective clinical study.Methods A cohort of 184 diabetic patients, （63±14） years old, 144 males, who underwent simultaneously ABI testing and low extremity arterial duplex ultrasound within one week, were enrolled randomly into this study. According to the ABI value, they were divided into three groups： the high, normal and low ABI groups. The severity and location of atherosclerotic lesions in the lower extremity were determined based on the results of low extremity artery duplex ultrasound. The chi-square test was used to compare the atherosclerosis severity grade and lesion location across the three groups.Results The prevalence of low extremity artery occlusion was significantly lower in the high ABI group than in the low ABI group （3.3% vs. 63.5%, P〈0.01）, and the main atherosclerotic lesions were diffuse dot-like hyperechogenicity spots or small plaques （86.7%）. In addition, the atherosclerotic lesions were mostly found in the distal segment of the lower extremity in patients with high ABI （46.3%）.Conclusion A high ABI may be an integrative marker for intimal and medial calcification, which has a high positive predictive value for artery calcification.

药物涂层球囊联合血管减容对下肢动脉硬化闭塞病变病人血运重建率、血管内皮功能及踝肱指数的影响

目的观察药物涂层球囊(DCB)联合血管减容对下肢动脉硬化闭塞病变(LEAOD)病人血运重建率、血管内皮功能及踝肱指数(ABI)的影响。方法选择2018年6月至2021年6月黄河三门峡医院收治的LEAOD病人100例,按随机数字表法分两组,对照组(n=50)予DCB,研究组(n=50)予DCB联合血管减容。比较靶血管通畅率、靶血管血运重建(TLR)率、再狭窄率、Rutherford分级情况、血管内皮功能、ABI、下肢动脉最小管腔直径(MLD)、晚期管腔丢失(LLL)值。结果术后12个月,研究组靶血管通畅率(92.00%,46/50)均较对照组(74.00%,37/50)高(P<0.05)。术后12个月,研究组TLR率(2.00%,1/50)、再狭窄率(0,0/50)均较对照组(18.00%,9/50)、(12.00%,6/50)低(P<0.05)。术后,两组Rutherford分级情况均优于术前(P<0.05),且研究组Rutherford分级情况均优于对照组(Z=-2.21,P=0.027)。术后个12个月,两组血流介导的血管内皮舒张程度值(FMD)、硝酸甘油介导的血管内皮舒张程度值(NMD)、足背动脉ABI、胫后动脉ABI均高于术前(P<0.05),且研究组高于对照组(均P<0.05)。术后个12个月,两组的下肢动脉MLD、LLL值均低于术后次日(P<0.05),且研究组下肢动脉MLD高于对照组(P<0.05),LLL值低于对照组(P<0.05)。结论DCB联合血管减容能提高LEAOD病人靶血管通畅率,降低TLR率、再狭窄率,改善Rutherford分级情况、血管内皮功能、ABI,调节下肢动脉MLD、LLL值。

踝臂指数、趾臂指数、LDL-C/HDL-C在冠状动脉疾病中的应用价值

目的探讨踝臂指数(ABI)、趾臂指数(TBI)、低密度脂蛋白胆固醇与高密度脂蛋白胆固醇比值(LDL-C/HDL-C)在冠状动脉疾病患者中的应用价值。方法纳入2011年10月-2013年2月于中国医科大学附属第一医院心内科住院治疗的160例患者,依据冠状动脉多层螺旋CT造影(CTA)检查结果将患者分为两组,其中对照组患者57例(冠状动脉狭窄程度≤25%),冠状动脉病变组患者103例(冠状动脉狭窄程度>25%)。冠状动脉病变组患者中冠状动脉单支病变患者30例(单支病变组)、双支病变患者31例(双支病变组)、三支病变患者42例(三支病变组);轻度病变组患者55例(冠状动脉狭窄程度≤50%)及中重度病变组患者48例(冠状动脉狭窄程度>50%)。对入组患者行ABI、TBI、LDL-C/HDL-C检查,分析冠状动脉病变不同亚组间ABI、TBI、LDL-C/HDL-C水平变化及其对判断冠状动脉病变程度的价值。结果对照组与冠状动脉单支病变组、双支病变组、三支病变组间ABI、TBI呈降低趋势,LDL-C/HDL-C水平呈升高趋势,组间ABI、TBI、LDL-C/HDL-C水平比较,差异均有统计学意义(P<0.05);三支病变组与对照组、单支病变组ABI、TBI及LDL-C/HDL-C水平间比较,差异均有统计学意义(P<0.05);双支病变组与对照组ABI水平间比较,差异有统计学意义(P<0.05)。对照组与冠状动脉狭窄轻度病变组、中重度病变组间ABI、TBI呈降低趋势,LDL-C/HDL-C水平呈升高趋势,组间ABI、TBI、LDL-C/HDL-C水平比较,差异均有统计学意义(P<0.05);中重度病变组与对照组ABI、TBI及LDL-C/HDL-C水平间比较,差异有统计学意义(P<0.05);中重度病变组与轻度病变组及轻度病变组与对照组ABI水平间比较,差异有统计学意义(P<0.05)。结论 ABI能较好反应冠脉病变程度,ABI值越低冠脉狭窄越重,但并不能全面反映冠脉病变范围;LDL-C/HDL-C、TBI对冠脉病变的判断有一定意义,但不适用于准确评价冠脉病变程度及范围。

归龙丸方对0级糖尿病足血清基质金属蛋白酶-9、血清同型半胱氨酸的影响研究

目的观察归龙丸方早期干预0级糖尿病足(DF)的临床疗效及对周围神经传导速度、血管功能的影响。方法将80例0级DF患者按随机数字表随机分为治疗组和对照组各40例。在基础治疗(口服降糖药或胰岛素注射降糖等)的基础上,治疗组加用归龙丸方治疗,对照组加用西洛他唑口服治疗,观察两组患者治疗前后临床症状评分、踝/肱动脉比(ABI)、双下肢腓总神经传导速度、血清基质金属蛋白酶-9(MMP-9)、血清同型半胱氨酸(Hcy)的变化。结果两组患者临床症状评分治疗后与治疗前比较,差异均有统计学意义(P<0.05);治疗组优于对照组,差异有统计学意义(P<0.05)。治疗组治疗后ABI评分与治疗前比较,差异有统计学意义(P<0.05);对照组患者治疗前后ABI评分间差异无统计学意义(P>0.05);治疗组治疗后ABI评分与对照组比较,差异有统计学意义(P<0.05)。治疗后两组患者腓总神经感觉神经传导速度(SCV)、运动神经传导速度(MCV)与治疗前相比,差异均有统计学意义(P<0.05);治疗组与对照组比较,差异亦有统计学意义(P<0.05)。两组患者治疗后血清MMP-9、Hcy水平与治疗前比较,差异有显著统计学意义(P<0.01),治疗组与对照组比较,差异亦有统计学意义(P<0.05)。结论归龙丸方具有温阳养血、活血通络的作用,可以提升ABI评分,提高神经传导速度,降低血清MMP-9、Hcy水平,改善0级DF患者的临床症状,疗效优于西洛他唑。

稳消方对颈动脉粥样硬化不稳定斑块MCP-1、VCAM-1表达、脂质代谢、踝臂指数的影响

目的观察稳消方对颈动脉粥样硬化不稳定斑块炎症因子、脂质代谢、踝臂指数的影响。方法将78例动脉粥样硬化患者随机分为2组,每组39例。对照组给予基础治疗,干预组在基础治疗同时加用稳消方。2组疗程均为24周,观察治疗前后人血清单核细胞趋化蛋白-1(MCP-1)、血管细胞黏附因子-1(VCAM-1)、血脂水平及踝臂指数变化。结果最终完成研究69例,对照组36例,干预组33例。2组治疗后MCP-1、VCAM-1、血脂水平及踝臂指数均较治疗前明显改善(P均<0.05),且干预组各指标改善情况均明显优于对照组(P<0.05)。结论稳消方可抑制炎症因子表达,改善脂质代谢,降低踝臂指数,从而达到延缓动脉硬化、减少斑块的目的。

血浆β2-微球蛋白对高血压患者动脉粥样硬化的评价探讨

目的:探讨血浆β2微球蛋白(β2-MG)与高血压患者动脉硬化的关系。方法:收集105例明确诊断的高血压患者,按患者踝肱指数及高血压病程分组,以同期35例非高血压病患者作为对照,比较各组血浆β2-MG水平。结果:高血压患者血浆β2-MG浓度较对照组明显增高,并随着高血压病程的延长而升高(均P<0.05)。结论:血浆β2-MG可作为评价高血压患者动脉粥样硬化程度的指标,高血压患者筛查血浆β2-MG水平对预测靶器官损害及判断预后具有重要的临床意义。

踝肱指数诊断慢性肢体威胁性缺血患者全球肢体解剖分期系统3期的可行性研究

目的探讨踝肱指数(ABI)诊断慢性肢体威胁性缺血(CLTI)患者全球肢体解剖分期系统(GLASS)3期的可行性。方法收集2020年1月至2022年10月于西安交通大学第一附属医院就诊的73例CLTI患者的临床资料,按照GLASS分期的不同将其分为GLASS 1~2期组(n=24)和GLASS 3期组(n=49)。比较两组患者的ABI,采用受试者工作特征(ROC)曲线进行诊断价值分析,计算ROC曲线下面积(AUC)、阈值、灵敏度、特异度。结果GLASS 1~2期组患者平均ABI为0.890(0.710,1.000),高于GLASS 3期组患者的0(0,0.595),差异有统计学意义(Z=-5.676,P﹤0.05)。ROC曲线显示,ABI诊断CLTI患者GLASS 3期的AUC为0.903,阈值为0.490,灵敏度为95%,特异度为70%。结论CLTI患者GLASS 1~2期与GLASS 3期的ABI差异显著,以0.490为ABI阈值可于术前预筛出GLASS 3期患者,从而更好地预判手术策略。