scholarly journals The Challenge and Importance of Defining Critical Limb Ischemia

1997 ◽  
Vol 2 (2) ◽  
pp. 126-131 ◽  
Author(s):  
Stefan A Carter
Keyword(s):  
Risk Factors ◽  
Critical Limb Ischemia ◽  
Clinical Manifestations ◽  
Total Mortality ◽  
Limb Ischemia ◽  
Mortality Rates ◽  
Critical Ischemia ◽  
History Of ◽  
Definition Of ◽  
Very High

Patients with critical limb ischemia are at risk of limb loss and have very high cardiovascular and total mortality rates, which are greater than can be accounted for by the usual risk factors for atherosclerosis. A definition of critical ischemia is necessary to determine the natural history of the disease and to assess and compare the efficacy of various forms of therapy. The definition needs to be based on hemodynamic criteria because clinical manifestations and outcomes are not reliable. The reasons for the difficulties in arriving at a generally acceptable definition are explored. Building on the previous work of others, modified hemodynamic definitions for critical and subcritical ischemia, which include measurements of pressures and of indices of microcirculation, are proposed.

Critical limb ischemia patients clinically improving with medical treatment have lower neutrophil-to-lymphocyte and platelet-to-lymphocyte ratios

Vascular ◽  
2021 ◽  
pp. 170853812098629
Author(s):  
Sevinç B Erdoğan ◽  
Ümmühan N Selçuk ◽  
Murat Baştopçu ◽  
Gökhan Arslanhan ◽  
Arif Y Çakmak ◽  
...  
Keyword(s):  
Risk Factors ◽  
Medical Treatment ◽  
Critical Limb Ischemia ◽  
Limb Ischemia ◽  
Response To Treatment ◽  
Standard Regimen ◽  
Markers Of Inflammation ◽  
Endovascular Revascularization ◽  
Cardiovascular Center ◽  
Associated Risk Factors

Objectives Inflammation is a component in the pathogenesis of critical limb ischemia. We aimed to assess how inflammation affects response to treatment in patients treated for critical limb ischemia using neutrophil-to-lymphocyte (NLR) and platelet-to-lymphocytes ratios (PLR) as markers of inflammation. Methods Patients in a single tertiary cardiovascular center with critical limb ischemia unsuitable for surgical or interventional revascularization were retrospectively identified. Data were collected on medical history for risk factors, previous surgical or endovascular revascularization, and outcome. A standard regimen of low molecular weight heparin, aspirin, statins, iloprost infusions, and a standard pain medication protocol were applied to each patient per hospital protocol. Patients with improvement in ischemic pain and healed ulcers made up the responders group and cases with no worsening pain or ulcer size or progression to minor or major amputations made up the non-responders group. Responders and Non-responders were compared for risk factors including pretreatment NLR and PLR. Results 268 included patients who were not candidates for surgical or endovascular revascularization were identified. Responders had significantly lower pretreatment NLR (4.48 vs 8.47, p < 0.001) and PLR (162.19 vs 225.43, p = 0.001) values. After controlling for associated risk factors NLR ≥ 4.63 (p < 0.001) and PLR ≥ 151.24 (p = 0.016) were independently associated with no response to treatment. Conclusions Neutrophil-to-lymphocyte ratio and platelet-to-lymphocytes ratio are markers of inflammation that are reduced in patients improving with medical treatment suggesting a decreased state of inflammation before treatment in responding patients.

The physiopathology of spontaneous hemorrhagic stroke: a systematic review

2021 ◽  
Vol 0 (0) ◽  
Author(s):  
Alcivan Batista de Morais Filho ◽  
Thiago Luis de Holanda Rego ◽  
Letícia de Lima Mendonça ◽  
Sulyanne Saraiva de Almeida ◽  
Mariana Lima da Nóbrega ◽  
...  
Keyword(s):  
Risk Factors ◽  
Systematic Review ◽  
Ischemic Stroke ◽  
Subarachnoid Hemorrhage ◽  
Natural History ◽  
Hemorrhagic Stroke ◽  
Recent Literature ◽  
Clinical Manifestations ◽  
The Road ◽  
History Of

Abstract Hemorrhagic stroke (HS) is a major cause of death and disability worldwide, despite being less common, it presents more aggressively and leads to more severe sequelae than ischemic stroke. There are two types of HS: Intracerebral Hemorrhage (ICH) and Subarachnoid Hemorrhage (SAH), differing not only in the site of bleeding, but also in the mechanisms responsible for acute and subacute symptoms. This is a systematic review of databases in search of works of the last five years relating to the comprehension of both kinds of HS. Sixty two articles composed the direct findings of the recent literature and were further characterized to construct the pathophysiology in the order of events. The road to the understanding of the spontaneous HS pathophysiology is far from complete. Our findings show specific and individual results relating to the natural history of the disease of ICH and SAH, presenting common and different risk factors, distinct and similar clinical manifestations at onset or later days to weeks, and possible complications for both.

scholarly journals The natural history of untreated severe or critical limb ischemia

2015 ◽  
Vol 62 (6) ◽  
pp. 1642-1651.e3 ◽  
Author(s):  
Abd Moain Abu Dabrh ◽  
Mark W. Steffen ◽  
Chaitanya Undavalli ◽  
Noor Asi ◽  
Zhen Wang ◽  
...  
Keyword(s):  
Natural History ◽  
Critical Limb Ischemia ◽  
Limb Ischemia ◽  
History Of

Isolated femoral artery revascularisation with or without iliac inflow improvement – a less invasive surgical option in critical limb ischemia

VASA ◽  
2021 ◽  
pp. 1-7
Author(s):  
Andreas S. Peters ◽  
Katrin Meisenbacher ◽  
Dorothea Weber ◽  
Theodosios Bisdas ◽  
Giovanni Torsello ◽  
...  
Keyword(s):  
Risk Factors ◽  
Femoral Artery ◽  
Critical Limb Ischemia ◽  
Negative Impact ◽  
Limb Ischemia ◽  
Major Amputation ◽  
Lesion Length ◽  
Vascular Intervention ◽  
Selection Of Variables ◽  
Surgical Option

Summary: Background: Isolated femoral artery revascularisation (iFAR) represents a well-established surgical method in the treatment of peripheral arterial disease (PAD) involving common femoral artery disease. Data for iFAR in multilevel PAD are inconsistent, particularly in patients with critical limb ischemia (CLI). The aim of the study was to evaluate the outcome of iFAR in CLI regarding major amputation and reintervention and to identify associated risk factors for this outcome. Patients and methods: The data used have been derived from the German Registry of Firstline Treatment in Critical Limb Ischemia (CRITISCH). A total of 1200 patients were enrolled in 27 vascular centres. This sub-analysis included patients, which were treated with iFAR with/without concomitant iliac intervention. For detection of risk factors for the combined endpoint of major amputation and/or reintervention, selection of variables for multiple regression was conducted using stepwise forward/backward selection by Akaike’s information criterion. Results: 95 patients were included (mean age: 72 years ± 10.82; 64.2% male). Of those, 32 (33.7%) participants reached the combined endpoint. Risk factor analysis revealed continued tobacco use (odds ratio [OR] 2.316, confidence interval [CI] 0.832–6.674), TASC D-lesion (OR: 2.293, CI: 0.869–6.261) and previous vascular intervention in the trial leg (OR: 2.720, CI: 1.037–7.381) to be associated with reaching the combined endpoint. Conclusions: iFAR provides a reasonable, surgical option to treat CLI. Lesion length (TASC D) seems to have a negative impact on outcome. Further research is required to better define the future role of iFAR for combined femoro-popliteal lesions in CLI – best in terms of a randomised controlled trial.

Use of intravenous alprostadil in patients with severe critical ischemia of the lower limbs

Vascular ◽  
2018 ◽  
Vol 27 (3) ◽  
pp. 318-323
Author(s):  
Jorge Enrique Machado-Alba ◽  
Manuel E Machado-Duque
Keyword(s):  
Critical Limb Ischemia ◽  
Adverse Reactions ◽  
Limb Ischemia ◽  
Cross Sectional Study ◽  
Lower Limbs ◽  
Critical Ischemia ◽  
Cross Sectional ◽  
Potential Benefits ◽  
Advanced Stages ◽  
Clinical Records

Objectives To determine the indications for the use, potential benefits, and adverse reactions of alprostadil in a group of Colombian patients. Methods A retrospective cross-sectional study was conducted in patients diagnosed with critical limb ischemia who received alprostadil in five hospitals in Colombia between September 2011 and July 2017. We reviewed the clinical records of each patient to obtain the sociodemographic and pharmacological variables, clinical stages, complications, comorbidities, reported effectiveness and adverse reactions. Results Sixty-one patients treated with alprostadil were evaluated; 50.8% of patients were men, and the average age of 72.5 ± 10.7 years. A total of 86.9% of patients were hypertensive, and 65.6% were diabetic. A total of 77.0% presented ulceration, and this condition was considered as a diabetic foot in 57.4% of patients. A total of 81.9% of patients were classified as Fontaine stage 4; 60.7% received therapy as initially indicated, with an average of 19 days of alprostadil use. Regarding the therapy results, 58.0% of the patients with ulcers or trophic lesions showed improvement, 86.2% showed improvement of pain, and the limb was saved in 72.1% of patients. Conclusions Critical limb ischemia was presented by patients with advanced age and high cardiovascular risk who were treated during severe and advanced stages where therapeutic options are limited. Treatment with alprostadil achieved satisfactory results with improvement in ulcers, pain, and limb salvage rates in this series of patients.

scholarly journals Long-term outcomes in patients with critical limb ischemia and heart failure with preserved or reduced ejection fraction

2017 ◽  
Vol 22 (4) ◽  
pp. 307-315 ◽  
Author(s):  
Kavita B Khaira ◽  
Ellen Brinza ◽  
Gagan D Singh ◽  
Ezra A Amsterdam ◽  
Stephen W Waldo ◽  
...  
Keyword(s):  
Heart Failure ◽  
Ejection Fraction ◽  
Critical Limb Ischemia ◽  
Limb Ischemia ◽  
Left Ventricular ◽  
Term Survival ◽  
Long Term Survival ◽  
Reduced Ejection Fraction ◽  
History Of

The impact of heart failure (HF) on long-term survival in patients with critical limb ischemia (CLI) has not been well described. Outcomes stratified by left ventricular ejection fraction (EF) are also unknown. A single center retrospective chart review was performed for patients who underwent treatment for CLI from 2006 to 2013. Baseline demographics, procedural data and outcomes were analyzed. HF diagnosis was based on appropriate signs and symptoms as well as results of non-invasive testing. Among 381 CLI patients, 120 (31%) had a history of HF and 261 (69%) had no history of heart failure (no-HF). Within the HF group, 74 (62%) had HF with preserved ejection fraction (HFpEF) and 46 (38%) had HF with reduced ejection fraction (HFrEF). The average EF for those with no-HF, HFpEF and HFrEF were 59±13% vs 56±9% vs 30±9%, respectively. The likelihood of having concomitant coronary artery disease (CAD) was lowest in the no-HF group (43%), higher in the HFpEF group (70%) and highest in the HFrEF group (83%) ( p=0.001). Five-year survival was on average twofold higher in the no-HF group (43%) compared to both the HFpEF (19%, p=0.001) and HFrEF groups (24%, p=0.001). Long-term survival rates did not differ between the two HF groups ( p=0.50). There was no difference in 5-year freedom from major amputation or freedom from major adverse limb events between the no-HF, HFpEF and HFrEF groups, respectively. Overall, the combination of CLI and HF is associated with poor 5-year survival, independent of the degree of left ventricular systolic dysfunction.

scholarly journals Analytical epidemiology of multiple sclerosis in the Republic of Kabardino-Balkaria

2021 ◽  
Vol 13 (1S) ◽  
pp. 10-14
Author(s):  
L. B. Tlapshokova ◽  
A. R. Zikhova
Keyword(s):  
Risk Factors ◽  
Multiple Sclerosis ◽  
Environmental Factors ◽  
Scarlet Fever ◽  
Disease Onset ◽  
Clinical Manifestations ◽  
Control Group ◽  
Place Of Residence ◽  
History Of ◽  
The Republic

Multiple sclerosis (MS) is a common autoimmune disease, which etiology includes a complex of genetic and environmental factors. Data suggests that their interaction can influence the age of the clinical manifestations and the course of the disease. Therefore, the study of risk factors of MS in regions with different ethnic compositions of the population and climatic and geographical characteristics is of considerable interest.Objective: to study MS risk factors prevalence in the Republic of Kabardino-Balkaria (RKB).Patients and methods. This case-control study of the representation of risk factors included a cohort of 112 MS patients living in two regions of the RKB (Nalchik and the Prokhladnensky district). The MS diagnosis was established with the McDonald criteria (2017). MS risk factors were assessed with a unified questionnaire. 112 respondents (matched by the main demographic characteristics and place of residence) were included in the control group.Results and discussion. MS patients from the Prokhladnensky district were significantly more likely to contact harmful chemical compounds, had higher consumption of smoked meat products; and suffered from viral infections more often (all differences were significant, p<0.05). More patients with MS, regardless of their place of residence, had a history of scarlet fever than the controls (n=23; 19.5% and n=14; 13.4%, ratio indicator 0.43 (95% CI 0.32–1.01), p=0.041), and the maximum significance of this factor was found in patients who suffered from scarlet fever after the age of 15 years (n=7; 6.3% and n=1; 0.9%, ratio indicator 2.45 (95% CI 1.92–3.21), p=0.041). More patients with MS had a history of chickenpox (n=70; 62.5% and n=55; 41.1%; ratio indicator 0.78 (95% CI 0.65–0.94, p=0.032), the frequency of this factor was most significant in early (up to 7 years) disease onset. Regardless of the place of residence, patients with MS were more likely to suffer from tonsillitis and sinusitis in childhood (p=0.032).Conclusion. In the RKB, as in other regions of the Russian Federation, the risk of MS, along with a genetic predisposition, is primarily determined by environmental factors, such as contact with potentially harmful chemicals, history of somatic diseases, characteristics of the ecological situation, etc. Therefore, MS risk is higher in people exposed to these factors before the age of 7 years and does not depend on the place of residence. 

scholarly journals Recurrent Atherosclerotic Cardiovascular Event Rates Differ Among Patients Meeting the Very High Risk Definition According to Age, Sex, Race/Ethnicity, and Socioeconomic Status

2020 ◽  
Vol 9 (23) ◽  
Author(s):  
Jaejin An ◽  
Yiyi Zhang ◽  
Paul Muntner ◽  
Andrew E. Moran ◽  
Jin‐Wen Hsu ◽  
...  
Keyword(s):  
Socioeconomic Status ◽  
High Risk ◽  
Sociodemographic Factors ◽  
Study Cohort ◽  
Atherosclerotic Cardiovascular Disease ◽  
Annual Household Income ◽  
History Of ◽  
Race Ethnicity ◽  
Definition Of ◽  
Very High

Background The risk for atherosclerotic cardiovascular disease (ASCVD) events may differ by sociodemographic factors among patients meeting the definition of very high risk according to the 2018 American Heart Association/American College of Cardiology cholesterol guideline, leading to treatment disparities. We estimated the risk for recurrent ASCVD events among adults meeting the definition of very high risk by age, sex, race/ethnicity, and socioeconomic status in a US integrated healthcare system. Methods and Results The study cohort included Kaiser Permanente Southern California members aged ≥21 years with a history of clinical ASCVD on September 30, 2009. Very high risk for recurrent ASCVD was defined by a history of ≥2 major ASCVD events or a history of 1 major event along with ≥2 high‐risk conditions. Patients were followed through 2015 for a first recurrent ASCVD event. Of 77 101 patients with ASCVD, 50.8% met the definition for very high risk. Among patients meeting the definition of very high risk, recurrent ASCVD rates were higher in older (>75 years) versus younger patients (21–40 years) (sex‐adjusted hazard ratio [HR] [95% CI] 1.85; 1.23–2.79), non‐Hispanic Black patients versus non‐Hispanic White patients (age‐, sex‐adjusted HR, 1.32; 1.23–1.41), those who lived in neighborhoods with lower (<$35k) versus higher annual household income (≥$80k) (HR, 1.20; 1.11–1.30), or with lower (≥31.2%) versus higher education levels (<8.8% high school or lower) (HR, 1.26; 1.19–1.34). Conclusions Disparities in the risk for recurrent ASCVD events were present across sociodemographic factors among very high risk patients. The addition of sociodemographic factors to current definitions of very high risk could reduce health disparities.

scholarly journals Patients with Critical Limb Ischemia Requiring Intervention: Occurrence and Risk Factors for Reintervention

2020 ◽  
Vol 231 (4) ◽  
pp. S351-S352
Author(s):  
Muhammad N. Khan ◽  
Romeo B. Mateo ◽  
Faisal S. Jehan ◽  
Muhammad Zeeshan ◽  
Viraj Pandit ◽  
...  
Keyword(s):  
Risk Factors ◽  
Critical Limb Ischemia ◽  
Limb Ischemia

scholarly journals Gender-related differences in critical limb ischemia due to peripheral arterial occlusive disease

2013 ◽  
Vol 12 (4) ◽  
pp. 278-283 ◽  
Author(s):  
Vanessa Prado dos Santos ◽  
Carlos Alberto Silveira Alves ◽  
Cicero Fidelis Lopes ◽  
Jose Siqueira de Araujo Filho
Keyword(s):  
Risk Factors ◽  
Critical Limb Ischemia ◽  
Peripheral Arterial Occlusive Disease ◽  
Clinical Characteristics ◽  
Limb Ischemia ◽  
Arterial Occlusive Disease ◽  
Occlusive Disease ◽  
Male And Female ◽  
Female Patients ◽  
Peripheral Arterial

BACKGROUND: Mortality from cardiovascular disease has declined among men and increased among North American women. Recent studies have revealed differences between genders in the epidemiology of atherosclerotic disease. OBJECTIVE: To study possible differences between male and female patients with critical limb ischemia (CLI) according to risk factors of atherosclerosis and clinical characteristics of lower limbs with peripheral arterial occlusive disease (PAOD). METHODS: The study included 171 male and female patients treated for CLI due to infrainguinal PAOD and compared clinical characteristics (Rutherford category and PAOD territory), risk factors for atherosclerosis (diabetes, age, smoking and hypertension) and number of opacified arteries on digital angiograms of the leg. The EPI-INFO software was used for statistical analysis, and the level of significance was set at p<0.05. RESULTS: Mean age was 70 years, and 88 patients were men (52%). For most patients (both genders), Rutherford category was 5 (82 % of men and 70% of women; p=0.16). The group of women had higher mean age (73 vs. 67 years; p=0.0002) and greater prevalence of diabetes (66% vs. 45%; p=0.003) and hypertension (90% vs. 56%; p=0.0000001). Among men, the prevalence of smoking was higher (76% vs. 53%; p=0.0008). The analysis of digital angiograms revealed that opacification of only one artery in the leg was found for 74% of women (vs. 50% of men). CONCLUSION: The prevalence of risk factors for atherosclerosis and the characteristics of PAOD are different between male and female patients with CLI.

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