scholarly journals Acute myocardial infarctation in patients with critical ischemia underwent lower limb revascularization

2013 ◽  
Vol 12 (4) ◽  
pp. 284-288
Author(s):  
Esdras Marques Lins ◽  
Jose Wellington Barros ◽  
Fernanda Appolonio ◽  
Eduardo Anacleto ◽  
Eduardo Cavalcanti Lima
Keyword(s):  
Myocardial Infarction ◽  
Lower Limb ◽  
Troponin I ◽  
Lower Limbs ◽  
Elevated Blood ◽  
Peripheral Artery ◽  
Conventional Surgery ◽  
Critical Ischemia ◽  
Infrainguinal Bypass ◽  
Peripheral Artery Occlusive Disease

BACKGROUND: Atherosclerosis is the main cause of peripheral artery occlusive disease (PAOD) of the lower limbs. Patients with PAOD often also have obstructive atherosclerosis in other arterial sites, mainly the coronary arteries. This means that patients who undergo infrainguinal bypass to treat critical ischemia have a higher risk of AMI. There are, however, few reports in the literature that have assessed this risk properly. OBJECTIVE: The aim of this study was to determine the incidence of acute myocardial infarction in patients who underwent infrainguinal bypass to treat critical ischemia of the lower limbs caused by PAOD. MATERIAL AND METHODS: A total of 64 patients who underwent 82 infrainguinal bypass operations, from February 2011 to July 2012 were studied. All patients had electrocardiograms and troponin I blood assays during the postoperative period (within 72 hours). RESULTS: There were abnormal ECG findings and elevated blood troponin I levels suggestive of AMI in five (6%) of the 82 operations performed. All five had conventional surgery. The incidence of AMI as a proportion of the 52 conventional surgery cases was 9.6%. Two patients died. CONCLUSION: There was a 6% AMI incidence among patients who underwent infrainguinal bypass due to PAOD. Considering only cases operated using conventional surgery, the incidence of AMI was 9.6%.

scholarly journals Combined Endovascular Treatment of Acute Coronary Syndrome with Bioresorbable Scaffolds and Angioplasty in Patient with Critical Lower Limb Ischemia – Hybrid Treatment in Multidisciplinary Hospital

2019 ◽  
Vol 14 (6) ◽  
pp. 901-907
Author(s):  
A. I. Zagorulko ◽  
R. V. Kolosov ◽  
A. V. Sidelnikov ◽  
Yu. V. Korzheva ◽  
A. G. Koledinsky
Keyword(s):  
Acute Coronary Syndrome ◽  
Coronary Arteries ◽  
Lower Limb ◽  
Hybrid Methods ◽  
Lower Limbs ◽  
Limb Amputation ◽  
Critical Ischemia ◽  
Long Term Outcome ◽  
Coronary Syndrome ◽  
Hybrid Treatment

The key to successful treatment in patients with acute coronary syndrome is maximally early revascularization of the coronary arteries. Treatment of multifocal atherosclerosis with lesions of the coronary and peripheral arteries requires coordinated work of the multidisciplinary team of doctors. Critical ischemia of the lower limbs requires urgent revascularization in order to prevent limb amputation. However, it is not always possible to perform revascularization using specialists of the same profile – endovascular or surgical. The use of hybrid methods of treatment (surgical and endovascular) allows to significantly improve the prognosis in saving the limb. The article presents a clinical observation of successful multistep treatment of a patient with acute coronary syndrome in combination with critical ischemia of the lower limb. The first stage was performed by multiple stenting of the coronary arteries with bioabsorptive scaffolds; the second stage was the hybrid treatment – femoral-tibial bypass with simultaneous recanalization and angioplasty of the lower leg arteries with good postoperative and long-term outcome.

Residual limb claudication after vascular transfemoral amputation

2017 ◽  
Vol 41 (6) ◽  
pp. 601-604 ◽  
Author(s):  
Riemke GA de Boer ◽  
Marieke A Paping ◽  
Bert Kap ◽  
Jan HB Geertzen
Keyword(s):  
Lower Limb ◽  
Developed Countries ◽  
Occlusive Disease ◽  
Limb Amputation ◽  
Residual Limb ◽  
Peripheral Artery ◽  
Transfemoral Amputation ◽  
Limb Pain ◽  
Peripheral Artery Occlusive Disease ◽  
Residual Limb Pain

Background:In all, 68% of all lower limb amputees experience residual limb pain. More than 95% of all lower limb amputations in developed countries are due to peripheral artery occlusive disease in combination with diabetes mellitus. Therefore, claudication, which is one of the most common manifestations of peripheral artery occlusive disease, should be taken into consideration in making a differential diagnosis of residual limb pain.Case description and methods:We present a case study of a 60-year-old diabetic patient who underwent a transfemoral amputation due to peripheral artery occlusive disease and who experiences residual limb pain. A computed tomography angiography was performed, and we searched for relevant literature on claudication pain after lower limb amputation.Conclusion:Little research has explored claudication as a cause of residual limb pain. More research will lead to a decrease in unnecessary prosthetic fittings and adjustments give more insight into the treatment and management of residual limb pain and prevent a decrease in mobility in amputees.Clinical relevanceClaudication due to peripheral artery occlusive disease should be included as a possible cause of residual limb pain to prevent unnecessary prosthetic fittings and adjustments and to minimize psychological effects and limitations in activities and participation.

scholarly journals Peripheral Artery Disease in Patients Presenting with Acute Coronary Syndrome in Hill Population of Northern India

2020 ◽  
Author(s):  
Nagaraju Naik Banavath ◽  
Mohd Iqbal Dar ◽  
Mohd Iqbal Wani ◽  
Aamir Rashid ◽  
Khursheed A Khan
Keyword(s):  
Myocardial Infarction ◽  
Acute Coronary Syndrome ◽  
Ct Angiography ◽  
Lower Limb ◽  
Peripheral Artery ◽  
Coronary Syndrome ◽  
Vessel Disease ◽  
Northern India ◽  
St Elevation ◽  
Artery Disease

Introduction: Acute Coronary Syndrome (ACS) and Peripheral Artery Disease (PAD) represent the serious presentations of the atherosclerotic disease spectrum. PAD due to atherosclerotic disease can lead to significant morbidity and mortality with significant medical and economic burden. Aim: To study the prevalence of PAD in patients presenting with ACS in the Hill population of Northern India. Materials and Methods: Patients presenting with ACS, with acute chest pain, Electrocardiogram (ECG) changes and elevated troponins were enrolled in the study. The presence of PAD was assessed with MESI Ankle Branchial Measuring Device (MESI ABPI MD® Slovenia EU) system which uses plethysmographic sensors with an inbuilt software that automatically calculates ABI with accuracy. Patients with ABI <0.91 were further evaluated by Computed Tomography (CT) Angiography of lower limb vessels. Results: A total of 288 patients were included in the study. There were 238 (82.6%) males and 50 (17.4%) females. Majority of patients had hypertension (214, 74.3%) as the risk factor. ST-Elevation Myocardial Infarction (STEMI) was seen in 197 (68.4%) and Non-ST Elevation Myocardial Infarction (NSTEMI) in 91 (31.6%). Coronary angiography was done in 240 patients. Single vessel disease was seen in 135 (56.2%), double vessel disease in 69 (28.8%) and triple vessel disease in 36 (15%) cases. Out of overall 288 patients 9 (3.12%) had borderline ABI (ABI- >0.9 and ≤1.0) and 4 (1.38%) had abnormal ABI (ABI <0.9). CT angiography of 3 out of 4 patients with ABI <0.9 showed significant atherosclerosis of lower limb vessels. Conclusion: There was very low prevalence of PAD with ACS in this study population.

Genetic predictors of an unfavorable course of obliterating atherosclerosis of lower limb arteries

2021 ◽  
Vol 29 (2) ◽  
pp. 251-256
Author(s):  
Roman E. Kalinin ◽  
Igor A. Suchkov ◽  
Artem A. Chobanyan ◽  
Aleksandr A. Nikiforov ◽  
Evgenia I. Shumskaya
Keyword(s):  
Healthy Volunteers ◽  
Lower Limb ◽  
Young Patients ◽  
Lower Limbs ◽  
Control Group ◽  
Critical Ischemia ◽  
Genetic Predictors ◽  
Increased Risk ◽  
The Difference ◽  
Progressive Course

AIM: This study aimed to determine the influence of 250GA polymorphism in the LIPC gene and 1607insG in the MMP-1 gene on the course of obliterating atherosclerosis of lower limb arteries (OALLA). MATERIALS AND METHODS: Seventy-six individuals were included in this study. In the first group (n = 34), patients with an unfavorable (progressive) course of OALLA and developed critical ischemia of the lower limbs within 5 years from the onset of the disease were included. In the second group (n = 34), patients with a conventionally favorable (non-progressive) course but did not develop critical ischemia of the lower limbs within 5 years from the onset of the disease and did not have a progressive degree of chronic ischemia. In the control group, healthy volunteers (n = 8) without signs of atherosclerosis in all vascular pools were included. In all the patients, LIPC-250GA and MMP-1-1607insG were genotyped. The difference in the observed and expected frequencies was evaluated via a Pearson 2 test with correction for likelihood. RESULTS: Significant differences (p = 0.013) in the 250GA polymorphism of the LIPC gene were found between the observed and expected frequencies compared with those in patients with OALLA and healthy volunteers. The assessment of the first and second groups revealed differences in the observed and expected frequencies (р = 0.004). Heterozygous carriage (GA genotype) was associated with an increased risk of the development of the unfavorable course of OALLA (hazard ratio = 2.133 with 95% confidence interval = 1.2143.748). In the analysis of the 1607insG polymorphism of the MMP-1 gene, statistically insignificant data were obtained compared between the first and second groups (р = 0.128) and between the groups of patients with OALLA and healthy volunteers (р = 0.38). CONCLUSIONS: The heterozygous carrier of LIPC 250GA was associated with an increased risk of an unfavorable OALLA course. This research on this polymorphism could be applied to patients with the newly diagnosed atherosclerosis of the arteries of the lower extremities to determine the prognosis of the disease course, especially in young patients with early manifestation and individuals with a burdened hereditary history. The 1607insG polymorphism of the MMP-1 gene had no effect on the course of OALLA.

scholarly journals Screening Peripheral Artery Disease using the Systolic Rise Time Measured with Photoplethysmography

2021 ◽  
pp. 1-4
Author(s):  
Hasan Obeid ◽  
◽  
Georges Leftheriotis ◽  
Keyword(s):  
Pilot Study ◽  
Lower Limb ◽  
Rise Time ◽  
Gold Standard ◽  
Pulse Wave ◽  
Ankle Brachial Index ◽  
Limiting Factor ◽  
Peripheral Artery ◽  
Peripheral Artery Occlusive Disease ◽  
Artery Disease

Screening for Peripheral Artery Occlusive Disease (PAOD) remains a challenge in the prevention and care of patients with arteriosclerosis. The Ankle Brachial Index (ABI) is currently the gold standard. However, ABI is time consuming and requires some expertise to perform which is a limiting factor for global screening. The measurement of the Systolic Rise Time (SRT) of the pulse wave of the lower limb may provide an easier alternative to detect PAOD. In a retrospective pilot study, we analyzed the possibility of detecting PAOD using the SRT of the toe waveform using the Photo-PlethysmoGraphic signal (PPG).

scholarly journals Pathogenesis of ischemia/reperfusion syndrome

2018 ◽  
Vol 99 (4) ◽  
pp. 640-644 ◽  
Author(s):  
D E Kutepov ◽  
M S Zhigalova ◽  
I N Pasechnik
Keyword(s):  
Blood Flow ◽  
Lower Limb ◽  
Ischemia Reperfusion ◽  
Vascular Complications ◽  
Limb Ischemia ◽  
Biologically Active ◽  
Lower Limbs ◽  
Ion Pump ◽  
Critical Ischemia ◽  
Lower Limb Ischemia

Ischemia/reperfusion syndrome is a collective concept that combines various pathological conditions developing against the background of the restoration of the main blood flow in the organ or limb segment, which has long been subjected to ischemia or traumatic amputation. Intensive care physicians often see ischemia/reperfusion syndrome after restoration of blood supply in patients with critical ischemia of the lower limb. The rate of critical ischemia of the lower limbs ranges from 400 to 1000 cases per 1 million of the population. The number of lower limb amputations due to critical lower limb ischemia in economically developed countries is 13.7-32.3 cases per 100,000 of the population. The main etiological factors of critical lower limb ischemia are atherosclerosis of peripheral vessels and vascular complications of diabetes. The pathogenesis of ischemia/reperfusion syndrome is based on a complex of pathophysiological changes resulting from the restoration of blood flow in previously ischemic lower limb. Restoration of blood circulation leads to massive flow into the systemic bloodstream of anaerobic metabolism products, free myoglobin, biologically active substances and inflammatory mediators. The main sources of reperfusion damage are activated forms of oxygen, in particular, superoxide radical О2-, nitric oxide, lipid peroxidation products. In the conditions of primary ischemia, and then tissue reperfusion, excessive production of activated oxygen forms leads to damage of biological structures (lipids, proteins, deoxyribonucleic acid), which causes disruption of normal cell functioning or its death due to necrosis or apoptosis, ion pump dysfunction, adhesion of leukocytes and increased vascular permeability.

scholarly journals Sepsis as a cause of fatal cases after the lower limbs amputation at the hip level due to gangrene in patients with a diabetic foot syndrome

2019 ◽  
Vol 41 part 1 (2) ◽  
pp. 29-35
Author(s):  
A. V. Kapshitar ◽  
A. A. Kapshitar
Keyword(s):  
Myocardial Infarction ◽  
Lower Limb ◽  
Diabetic Foot ◽  
Lower Limbs ◽  
Diabetic Foot Syndrome ◽  
Limb Amputation ◽  
Pathological Changes ◽  
Educational Work ◽  
Severe Diabetes ◽  
Patients With Diabetes

Purpose of the study. To study frequency of fatal sepsis, the causes and severity of diabetes patients complicated by diabetic foot syndrome of the gangrene limb, after amputation of the lower limb at the hip level. Material and methods. Amputation of the lower limb at the hip level was performed in 180 patients with diabetic foot, gangrene of the limb. 15 (8,3%) died. Results. From the 15 patients who died, 9 died from sepsis. The age was 54–78 years old. On admission, sepsis was diagnosed in 5 and septic shock – in 4 patients. After examination and preparation, emergency surgeries were performed in 4 patients and urgent surgeries – in 5. Two- and three-step surgeries were performed in 5 patients. They first performed the removal of the toes of the gangrene, osteomyelitis, opened deep phlegmon of the foot and the lower leg was completed by amputation of the lower limb. Primary amputations were performed in 4 patients. Sepsis was the cause of death in 5 patients from 11 to 60 days and the combinations of sepsis with acute myocardial infarction or repeated myocardial infarction – in 4 from 5 to 17 days. During the autopsy, pathological changes of severe diabetes, complicated diabetic foot syndrome, its mixed form, sepsis with manifestations of septicemia or septicopyjemia, and all organs and systems were revealed. Conclusions. The unsatisfactory organization of medical care for patients with diabetes and diabetic foot syndrome at the pre hospital stage, ineffective sanitary and educational work, systemic pathological changes led to sepsis and death after the amputation of the lower limb at the hip level. Keywords: sepsis, diabetic foot syndrome, limb amputation, mortality.

Cardiac troponin I in patients with acute upper and lower limb ischemia

VASA ◽  
2008 ◽  
Vol 37 (4) ◽  
pp. 327-332 ◽  
Author(s):  
Koutouzis ◽  
Sfyroeras ◽  
Moulakakis ◽  
Kontaras ◽  
Nikolaou ◽  
...  
Keyword(s):  
Upper Limb ◽  
Lower Limb ◽  
Cardiac Troponin ◽  
Cardiac Involvement ◽  
Troponin I ◽  
Limb Ischemia ◽  
Elevated Troponin ◽  
Troponin Elevation ◽  
Lower Limb Ischemia ◽  
Ischemia Group

Background: The aim of this study was to investigate the presence, etiology and clinical significance of elevated troponin I in patients with acute upper or lower limb ischemia. The high sensitivity and specificity of cardiac troponin for the diagnosis of myocardial cell damage suggested a significant role for troponin in the patients investigated for this condition. The initial enthusiasm for the diagnostic potential of troponin was limited by the discovery that elevated cardiac troponin levels are also observed in conditions other than acute myocardial infarction, even conditions without obvious cardiac involvement. Patients and Methods: 71 consecutive patients participated in this study. 31 (44%) of them were men and mean age was 75.4 ± 10.3 years (range 44–92 years). 60 (85%) patients had acute lower limb ischemia and the remaining (11; 15%) had acute upper limb ischemia. Serial creatine kinase (CK), isoenzyme MB (CK-MB) and troponin I measurements were performed in all patients. Results: 33 (46%) patients had elevated peak troponin I (> 0.2 ng/ml) levels, all from the lower limb ischemia group (33/60 vs. 0/11 from the acute upper limb ischemia group; p = 0.04). Patients with lower limb ischemia had higher peak troponin I values than patients with upper limb ischemia (0.97 ± 2.3 [range 0.01–12.1] ng/ml vs. 0.04 ± 0.04 [0.01–0.14] ng/ml respectively; p = 0.003), higher peak CK values (2504 ± 7409 [range 42–45 940] U/ml vs. 340 ± 775 [range 34–2403] U/ml, p = 0.002, respectively, in the two groups) and peak CK-MB values (59.4 ± 84.5 [range 12–480] U/ml vs. 21.2 ± 9.1 [range 12–39] U/ml, respectively, in the two groups; p = 0.04). Peak cardiac troponin I levels were correlated with peak CK and CK-MB values. Conclusions: Patients with lower limb ischemia often have elevated troponin I without a primary cardiac source; this was not observed in patients presenting with acute upper limb ischemia. It is very important for these critically ill patients to focus on the main problem of acute limb ischemia and to attempt to treat the patient rather than the troponin elevation per se. Cardiac troponin elevation should not prevent physicians from providing immediate treatment for limb ischaemia to these patients, espescially when signs, symptoms and electrocardiographic findings preclude acute cardiac involvement.

Design of a Human Knee Reeducation Mechanism

2019 ◽  
Vol 11 (1) ◽  
pp. 42-53
Author(s):  
Allaoua Brahmia ◽  
Ridha Kelaiaia
Keyword(s):  
Lower Limb ◽  
Mechanical Design ◽  
Kinematic Chain ◽  
Lower Limbs ◽  
Kinematic Structure ◽  
Robotic Device ◽  
Human Knee ◽  
Kinematic Study ◽  
Rehabilitation Exercise ◽  
New Machine

Abstract To establish an exercise in open muscular chain rehabilitation (OMC), it is necessary to choose the type of kinematic chain of the mechanical / biomechanical system that constitutes the lower limbs in interaction with the robotic device. Indeed, it’s accepted in biomechanics that a rehabilitation exercise in OMC of the lower limb is performed with a fixed hip and a free foot. Based on these findings, a kinematic structure of a new machine, named Reeduc-Knee, is proposed, and a mechanical design is carried out. The contribution of this work is not limited to the mechanical design of the Reeduc-Knee system. Indeed, to define the minimum parameterizing defining the configuration of the device relative to an absolute reference, a geometric and kinematic study is presented.

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