Introduction: Lower extremity arterial disease in diabetic patients has distinct characteristics. Objectives: To study the hospital frequency of lower extremity arterial disease and identify associated factors in diab...Introduction: Lower extremity arterial disease in diabetic patients has distinct characteristics. Objectives: To study the hospital frequency of lower extremity arterial disease and identify associated factors in diabetic patients at the Libreville University Hospital Center (CHUL). Materials and Methods: This was a cross-sectional study conducted from July 1, 2023, to January 31, 2024, in the endocrinology department of the CHUL. All patients with type 2 diabetes over the age of 18 admitted to this department, regardless of the reason for hospitalization, who provided informed consent, were included. Socio-demographic data and cardiovascular risk factors were recorded. Personal and family cardiovascular history and functional symptoms were investigated. The physical examination included measuring blood pressure, heart rate, and the ankle-brachial index in all patients. Results: A total of 219 patients were included, of whom 75 had lower extremity arterial disease, representing a prevalence of 34.24%. It was compensated in 28 cases (37.33%) and decompensated in 39 patients (52%). In eight cases (10.67%), there was critical chronic ischemia. Cardiovascular risk factors associated with diabetes were physical inactivity (89.5%), hypertension (55.25%), overweight (49.77%), obesity (22.84%), and smoking (10.04%). In multivariate analysis, only hypertension (OR = 2.09;95% CI: 1.05 - 4.17;p = 0.035) and LDL cholesterol (OR = 2.75;95% CI: 1.10 - 6.85;p = 0.03) were significantly associated with lower extremity arterial disease in diabetics at the University Hospital of Libreville. Conclusion: Lower extremity arterial disease is common in diabetic patients at the University Hospital of Libreville. It is often asymptomatic, thus requiring systematic screening.[-rId11-]展开更多
Objective To investigate the effect of Furongtongmai capsule on the in-stent restenosis （ISR） of superficial femoral artery after interventional operation in lower extremity Arteriosclerosis Occlusion （ASO）....Objective To investigate the effect of Furongtongmai capsule on the in-stent restenosis （ISR） of superficial femoral artery after interventional operation in lower extremity Arteriosclerosis Occlusion （ASO）. Methods： A total of 110 inpatients with ASO who performed Superficial femoral artery stent implantation were randomly divided into observation group and control group, with 55 cases in each group.Both groups received Aspirin 100 mg/d and Clopidogrel 75 mg/d. The observation group was given Furongtongmai capsule on the basis of routine treatment. After continuous treatment for 6 months, the clinical efficacy, Ankle Brachial Index （ABI）, high-sensitivity C-reactive protein （Hs-CPR） and ISR were compared between the two groups. Results： At 6 months after operation, the plasma levels of Hs-CRP in the two groups were significantly lower than those in the control group （P 〈 0.05）. The ABI of treatment group was significantly higher than the control group （P 〈 0.05）. There was a statistically significant difference in ISR incidence between the treatment group and the control group 6 months after surgery （9.09% vs 27.78%, P 〈 0.05）. Conclusion： Furongtongmai Capsule can inhibit Hs-CRP in patients with ASO after femoral artery intervention, improve the ankle brachial index and reduce the incidence of ISR.展开更多
Objective To investigate the clinical characteristics and treatment strategy of lower extremity arterial occlusive disease in patients with Crohn's disease (CD). Methods Clinical information of 9 cases suffering f...Objective To investigate the clinical characteristics and treatment strategy of lower extremity arterial occlusive disease in patients with Crohn's disease (CD). Methods Clinical information of 9 cases suffering from lower extremity arterial occlusion and CD was investigated retrospectively. Results All the cases were less than 50 years old and the most were females (8/9). Arterial occlusions occurred in either active (5/9) or inactive (4/9) stage of CD. Besides the arteries of lower extremities, other arteries could also be involved such as aorta, iliac artery, renal artery or mesentery artery. Seven cases had atherosclerotic imaging findings (4 had aortic plaques and 6 had iliac artery stenoses). Embolectomy or thromboendarterectomy were mostly performed. Four (44.4%) cases had recurrent lower limb ischemia. Conclusions Arterial occlusive disease is a rare extraintestinal manifestation of CD. A thorough inspection of aorta is necessary. Embolectomy is mostly preferred. Anticoagulation treatment is highly recommended after the operation.展开更多
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...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.展开更多
Introduction: Lower extremity artery disease (LEAD) is a serious cardiovascular disease. People living with the human immunodeficiency virus (HIV) are at risk. The aim of the study was to determine the prevalence of L...Introduction: Lower extremity artery disease (LEAD) is a serious cardiovascular disease. People living with the human immunodeficiency virus (HIV) are at risk. The aim of the study was to determine the prevalence of LEAD and identify the associated factors among people living with HIV who were followed at the departmental university hospital Ouémé-Plateau in Benin. Methods: This was a cross-sectional study. It included all HIV-infected people who were monitored at the department of medicine of the target hospital during the study period and met the inclusion criteria (followed for at least three months, aged at least 25 years, and having given their written consent to participate). Data were collected during an individual interview, followed by the measurement of parameters. The ankle brachial index ≤ 0.9 was used for the diagnosis of LEAD. Associated factors were searched through a multivariable logistic regression. Results: The prevalence of LEAD was 34.2% among 222 respondents having a mean age was 42.9 ± 10.8 years and a female predominance (77.5%). No significant association was found between the presence of LEAD and sociodemographic factors. The presence of LEAD was significantly associated with hypertension and antiretroviral therapy. Hypertensive patients had a higher risk of LEAD compared to non-hypertensive patients (OR = 1.98, 95% CI [1.04-3.83], p = 0.037). Those who were receiving second-line therapy also had a higher risk of LEAD compared to those on first-line therapy (OR = 2.95, 95% CI [1.14-7.60], p = 0.025). Conclusion: This study showed a high prevalence of LEAD especially among hypertensive patients and those who were receiving second-line antiretroviral therapy. LEAD diagnosis and management should be included in the routine care of people living with HIV in Benin.展开更多
Background:The risk of lower extremity arterial disease (LEAD) is increased in diabetic patients.LEAD in diabetic patients occurs earlier and is often more severe and diffuse;however,it is largely underdiagnosed and u...Background:The risk of lower extremity arterial disease (LEAD) is increased in diabetic patients.LEAD in diabetic patients occurs earlier and is often more severe and diffuse;however,it is largely underdiagnosed and untreated.The purposes of this study were to investigate and analyze LEAD situation of hospitalized elderly type 2 diabetic patients.Methods:The ankle-brachial index (ABI) was used to screen LEAD in hospitalized elderly type 2 diabetic patients.The patients were divided into 5 groups based on the screening results:non-LEAD group and LEAD group;the LEAD group was divided into mild stenosis group,moderate stenosis group,and severe stenosis group.Results:The percentage of patients who had LEAD was 43%.Significant difference in age,diabetes duration,peak velocity,microalbuminuria,and vibratory sensory neuropathy was observed between patients with and without LEAD;regression analysis showed that urinary albumin and vibratory sensory neuropathy were independent risk factors for LEAD.Significant difference in age,body mass index (BMI),peak velocity,urinary albumin,and high-density lipoprotein cholesterol (HDL-C) was observed between mild stenosis group,moderate stenosis group,and severe stenosis group;regression analysis showed that urinary albumin,BMI,and HDL-C were independent risk factors for accelerating vascular stenosis.Conclusions:The incidence of LEAD in hospitalized elderly type 2 diabetic patients is high;age,diabetes duration,peak velocity,BMI,urinary microalbumin,vibratory sensory neuropathy,and HDL-C are the maior risk factors for LEAD.Active control of risk factors is helpful to reduce or delay LEAD.展开更多
Purpose: To assess the efficacy of color Doppler imaging for decision making in the treatment of patients with lower extremity peripheral arterial disease (PAD) compared to digital subtraction angiography (DSA). Mater...Purpose: To assess the efficacy of color Doppler imaging for decision making in the treatment of patients with lower extremity peripheral arterial disease (PAD) compared to digital subtraction angiography (DSA). Materials and Methods: Color Doppler scan was done on patients suspected for lower limb PAD, a day prior to the DSA which was done by a vascular surgeon. Also, for the patients who were candidates for endovascular intervention based on the color Doppler arterial mapping results, endovascular interventions were performed at the same time if the DSA findings are correlated with the color Doppler map. The grading for evaluated segments was normal, insignificant stenosis (<50%), hemodynamically significant stenosis (≥50%) and occlusion. We yielded the diagnostic efficacy indices of Doppler for detecting arterial stenosis in each 18 different arterial segments below the renal arteries including, infrarenal aorta, common and external iliac, common femoral, superficial femoral (proximal, middle and distal segments), deep femoral, popliteal artery, tibioperoneal trunk, anterior and posterior tibial arteries (proximal, middle and distal segments) and peroneal artery (proximal and distal segments). Then, we yielded the kappa agreement between Doppler and DSA findings considering the grade of stenosis in 18 arterial segments separately. Results: Totally 115 lower extremities (2045 arterial segments) were evaluated in 90 patients [mean age: 60.8 ± 8.9 (range: 47 - 84 years old)] of which 68 (75.6%) were men. The sensitivity of color Doppler for all arterial segments was 90% or higher except for common iliac artery, distal segment of superficial femoral artery and proximal segments of anterior and posterior tibialis and peroneal arteries. However, the specificity was 89% or higher, in all arterial segments. Kappa agreement was 0.72 or higher in all segments (All P-Values 0.001). Conclusion: This study suggests that considering excellent capability of color Doppler sonography in the evaluation of lower extremity arterial disease, color Doppler arterial mapping is sufficient for decision making in the treatment of these patients and can reduce the rate of diagnostic angiography.展开更多
Diabetes-related foot disease(DFD)is a widely feared complication among people who live with diabetes.In Australia and globally,rates of disability,cardiovascular disease,lower extremity amputation,and mortality are s...Diabetes-related foot disease(DFD)is a widely feared complication among people who live with diabetes.In Australia and globally,rates of disability,cardiovascular disease,lower extremity amputation,and mortality are significantly increased in patients with DFD.In order to understand and prevent these outcomes,we analyse the common pathogenetic processes of neuropathy,arterial disease,and infection.The review then summarises important management considerations through the interdisciplinary lens.Using Australian and international guidelines,we offer a stepwise,evidence-based practical approach to the care of patients with DFD.展开更多
Objective: Evaluation of peripheral arterial disease with 64-detector multi-slice CT angiography (MDCT- A) and comparison of the results with the results of digital subtraction angiography (DSA), a standard reference....Objective: Evaluation of peripheral arterial disease with 64-detector multi-slice CT angiography (MDCT- A) and comparison of the results with the results of digital subtraction angiography (DSA), a standard reference. Materials and Method: The written informed consent of the patients and ethics committee approval were obtained. The retrospective study group consisted of 28 patients with a diagnosis of peripheral arterial disease. Using 64-MDCT-A, the arterial tree of the lower extremity was evaluated for the presence of steno-occlusive lesions that might have led to luminal stenosis. The diagnostic reliability of 64-MDCT- A was calculated and compared with that of DSA. Findings: In the segment-based analysis, the sensitivity, specificity, and reliability rates of 64-MDCT angiography in determining significant stenoses were 97.7%, 97%, and 97.3%, respectively. The Kappa co-efficiency for compatibility between 64-MDCT-A and DSA methods in grading stenosis was calculated as 0.896展开更多
文摘Introduction: Lower extremity arterial disease in diabetic patients has distinct characteristics. Objectives: To study the hospital frequency of lower extremity arterial disease and identify associated factors in diabetic patients at the Libreville University Hospital Center (CHUL). Materials and Methods: This was a cross-sectional study conducted from July 1, 2023, to January 31, 2024, in the endocrinology department of the CHUL. All patients with type 2 diabetes over the age of 18 admitted to this department, regardless of the reason for hospitalization, who provided informed consent, were included. Socio-demographic data and cardiovascular risk factors were recorded. Personal and family cardiovascular history and functional symptoms were investigated. The physical examination included measuring blood pressure, heart rate, and the ankle-brachial index in all patients. Results: A total of 219 patients were included, of whom 75 had lower extremity arterial disease, representing a prevalence of 34.24%. It was compensated in 28 cases (37.33%) and decompensated in 39 patients (52%). In eight cases (10.67%), there was critical chronic ischemia. Cardiovascular risk factors associated with diabetes were physical inactivity (89.5%), hypertension (55.25%), overweight (49.77%), obesity (22.84%), and smoking (10.04%). In multivariate analysis, only hypertension (OR = 2.09;95% CI: 1.05 - 4.17;p = 0.035) and LDL cholesterol (OR = 2.75;95% CI: 1.10 - 6.85;p = 0.03) were significantly associated with lower extremity arterial disease in diabetics at the University Hospital of Libreville. Conclusion: Lower extremity arterial disease is common in diabetic patients at the University Hospital of Libreville. It is often asymptomatic, thus requiring systematic screening.[-rId11-]
文摘Objective To investigate the effect of Furongtongmai capsule on the in-stent restenosis （ISR） of superficial femoral artery after interventional operation in lower extremity Arteriosclerosis Occlusion （ASO）. Methods： A total of 110 inpatients with ASO who performed Superficial femoral artery stent implantation were randomly divided into observation group and control group, with 55 cases in each group.Both groups received Aspirin 100 mg/d and Clopidogrel 75 mg/d. The observation group was given Furongtongmai capsule on the basis of routine treatment. After continuous treatment for 6 months, the clinical efficacy, Ankle Brachial Index （ABI）, high-sensitivity C-reactive protein （Hs-CPR） and ISR were compared between the two groups. Results： At 6 months after operation, the plasma levels of Hs-CRP in the two groups were significantly lower than those in the control group （P 〈 0.05）. The ABI of treatment group was significantly higher than the control group （P 〈 0.05）. There was a statistically significant difference in ISR incidence between the treatment group and the control group 6 months after surgery （9.09% vs 27.78%, P 〈 0.05）. Conclusion： Furongtongmai Capsule can inhibit Hs-CRP in patients with ASO after femoral artery intervention, improve the ankle brachial index and reduce the incidence of ISR.
文摘Objective To investigate the clinical characteristics and treatment strategy of lower extremity arterial occlusive disease in patients with Crohn's disease (CD). Methods Clinical information of 9 cases suffering from lower extremity arterial occlusion and CD was investigated retrospectively. Results All the cases were less than 50 years old and the most were females (8/9). Arterial occlusions occurred in either active (5/9) or inactive (4/9) stage of CD. Besides the arteries of lower extremities, other arteries could also be involved such as aorta, iliac artery, renal artery or mesentery artery. Seven cases had atherosclerotic imaging findings (4 had aortic plaques and 6 had iliac artery stenoses). Embolectomy or thromboendarterectomy were mostly performed. Four (44.4%) cases had recurrent lower limb ischemia. Conclusions Arterial occlusive disease is a rare extraintestinal manifestation of CD. A thorough inspection of aorta is necessary. Embolectomy is mostly preferred. Anticoagulation treatment is highly recommended after the operation.
文摘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.
文摘Introduction: Lower extremity artery disease (LEAD) is a serious cardiovascular disease. People living with the human immunodeficiency virus (HIV) are at risk. The aim of the study was to determine the prevalence of LEAD and identify the associated factors among people living with HIV who were followed at the departmental university hospital Ouémé-Plateau in Benin. Methods: This was a cross-sectional study. It included all HIV-infected people who were monitored at the department of medicine of the target hospital during the study period and met the inclusion criteria (followed for at least three months, aged at least 25 years, and having given their written consent to participate). Data were collected during an individual interview, followed by the measurement of parameters. The ankle brachial index ≤ 0.9 was used for the diagnosis of LEAD. Associated factors were searched through a multivariable logistic regression. Results: The prevalence of LEAD was 34.2% among 222 respondents having a mean age was 42.9 ± 10.8 years and a female predominance (77.5%). No significant association was found between the presence of LEAD and sociodemographic factors. The presence of LEAD was significantly associated with hypertension and antiretroviral therapy. Hypertensive patients had a higher risk of LEAD compared to non-hypertensive patients (OR = 1.98, 95% CI [1.04-3.83], p = 0.037). Those who were receiving second-line therapy also had a higher risk of LEAD compared to those on first-line therapy (OR = 2.95, 95% CI [1.14-7.60], p = 0.025). Conclusion: This study showed a high prevalence of LEAD especially among hypertensive patients and those who were receiving second-line antiretroviral therapy. LEAD diagnosis and management should be included in the routine care of people living with HIV in Benin.
基金funded by Shanghai Municipal Commission of Health and Family Planning,Key Developing Disciplines(2015ZB0501)Project of Shanghai Science and Technology Commission(16411971300).
文摘Background:The risk of lower extremity arterial disease (LEAD) is increased in diabetic patients.LEAD in diabetic patients occurs earlier and is often more severe and diffuse;however,it is largely underdiagnosed and untreated.The purposes of this study were to investigate and analyze LEAD situation of hospitalized elderly type 2 diabetic patients.Methods:The ankle-brachial index (ABI) was used to screen LEAD in hospitalized elderly type 2 diabetic patients.The patients were divided into 5 groups based on the screening results:non-LEAD group and LEAD group;the LEAD group was divided into mild stenosis group,moderate stenosis group,and severe stenosis group.Results:The percentage of patients who had LEAD was 43%.Significant difference in age,diabetes duration,peak velocity,microalbuminuria,and vibratory sensory neuropathy was observed between patients with and without LEAD;regression analysis showed that urinary albumin and vibratory sensory neuropathy were independent risk factors for LEAD.Significant difference in age,body mass index (BMI),peak velocity,urinary albumin,and high-density lipoprotein cholesterol (HDL-C) was observed between mild stenosis group,moderate stenosis group,and severe stenosis group;regression analysis showed that urinary albumin,BMI,and HDL-C were independent risk factors for accelerating vascular stenosis.Conclusions:The incidence of LEAD in hospitalized elderly type 2 diabetic patients is high;age,diabetes duration,peak velocity,BMI,urinary microalbumin,vibratory sensory neuropathy,and HDL-C are the maior risk factors for LEAD.Active control of risk factors is helpful to reduce or delay LEAD.
文摘Purpose: To assess the efficacy of color Doppler imaging for decision making in the treatment of patients with lower extremity peripheral arterial disease (PAD) compared to digital subtraction angiography (DSA). Materials and Methods: Color Doppler scan was done on patients suspected for lower limb PAD, a day prior to the DSA which was done by a vascular surgeon. Also, for the patients who were candidates for endovascular intervention based on the color Doppler arterial mapping results, endovascular interventions were performed at the same time if the DSA findings are correlated with the color Doppler map. The grading for evaluated segments was normal, insignificant stenosis (<50%), hemodynamically significant stenosis (≥50%) and occlusion. We yielded the diagnostic efficacy indices of Doppler for detecting arterial stenosis in each 18 different arterial segments below the renal arteries including, infrarenal aorta, common and external iliac, common femoral, superficial femoral (proximal, middle and distal segments), deep femoral, popliteal artery, tibioperoneal trunk, anterior and posterior tibial arteries (proximal, middle and distal segments) and peroneal artery (proximal and distal segments). Then, we yielded the kappa agreement between Doppler and DSA findings considering the grade of stenosis in 18 arterial segments separately. Results: Totally 115 lower extremities (2045 arterial segments) were evaluated in 90 patients [mean age: 60.8 ± 8.9 (range: 47 - 84 years old)] of which 68 (75.6%) were men. The sensitivity of color Doppler for all arterial segments was 90% or higher except for common iliac artery, distal segment of superficial femoral artery and proximal segments of anterior and posterior tibialis and peroneal arteries. However, the specificity was 89% or higher, in all arterial segments. Kappa agreement was 0.72 or higher in all segments (All P-Values 0.001). Conclusion: This study suggests that considering excellent capability of color Doppler sonography in the evaluation of lower extremity arterial disease, color Doppler arterial mapping is sufficient for decision making in the treatment of these patients and can reduce the rate of diagnostic angiography.
文摘Diabetes-related foot disease(DFD)is a widely feared complication among people who live with diabetes.In Australia and globally,rates of disability,cardiovascular disease,lower extremity amputation,and mortality are significantly increased in patients with DFD.In order to understand and prevent these outcomes,we analyse the common pathogenetic processes of neuropathy,arterial disease,and infection.The review then summarises important management considerations through the interdisciplinary lens.Using Australian and international guidelines,we offer a stepwise,evidence-based practical approach to the care of patients with DFD.
文摘Objective: Evaluation of peripheral arterial disease with 64-detector multi-slice CT angiography (MDCT- A) and comparison of the results with the results of digital subtraction angiography (DSA), a standard reference. Materials and Method: The written informed consent of the patients and ethics committee approval were obtained. The retrospective study group consisted of 28 patients with a diagnosis of peripheral arterial disease. Using 64-MDCT-A, the arterial tree of the lower extremity was evaluated for the presence of steno-occlusive lesions that might have led to luminal stenosis. The diagnostic reliability of 64-MDCT- A was calculated and compared with that of DSA. Findings: In the segment-based analysis, the sensitivity, specificity, and reliability rates of 64-MDCT angiography in determining significant stenoses were 97.7%, 97%, and 97.3%, respectively. The Kappa co-efficiency for compatibility between 64-MDCT-A and DSA methods in grading stenosis was calculated as 0.896
文摘目的探索下肢外周动脉疾病的潜在铁死亡相关生物标志物及诊断治疗靶点。方法应用生物信息学方法从基因表达综合数据库(gene expression omnibus,GEO)中下载下肢外周动脉疾病的转录组数据集,筛选出差异表达基因(differential expressed genes,DEGs),并与铁死亡基因取交集,得到下肢外周动脉疾病相关的铁死亡基因,对其进行功能富集,同时通过受试者工作特征(receiver operating characteristic,ROC)曲线分析下肢外周动脉疾病相关的铁死亡基因的诊断价值;之后构建蛋白质相互作用网络,应用Cytoscape中的算法预测关键基因;最后通过miRWalk预测靶向关键基因的miRNA并构建网络图。结果共筛选出9个下肢外周动脉疾病铁死亡相关基因,GO与KEGG的功能富集分析结果表明,这些基因与铁死亡、免疫调节、凋亡及糖尿病、动脉粥样硬化等相关,ROC诊断提示下肢外周动脉疾病患者中9个相关的铁死亡基因的平均曲线下面积(area under the curve,AUC)为0.930;基于算法筛选出4个关键基因:HMOX1、ALOX5、IL1B和CYBB,而CYBB和HMOX1同时受miR-6734-3p调控。结论通过生物信息学方法分析得出HMOX1、ALOX5、IL1B和CYBB在下肢外周动脉疾病中存在诱导铁死亡的潜在作用,而miR-6734-3p作为HMOX1与CYBB的共同靶向miRNA,有望成为潜在诊断生物标志物及治疗靶点。
