Comparison of Ankle Pressure, Systolic Toe Pressure, and Transcutaneous Oxygen Pressure to Predict Major Amputation After 1 Year in the COPART Cohort

Angiology ◽  
2018 ◽  
Vol 70 (3) ◽  
pp. 229-236 ◽  
Author(s):  
Pierre Salaun ◽  
Ileana Desormais ◽  
François-Xavier Lapébie ◽  
Alessandra Bura Rivière ◽  
Victor Aboyans ◽  
...  
Keyword(s):  
Peripheral Arterial Disease ◽  
Oxygen Pressure ◽  
Limb Ischemia ◽  
Arterial Disease ◽  
Major Amputation ◽  
Transcutaneous Oxygen ◽  
Ankle Pressure ◽  
Transcutaneous Oxygen Pressure ◽  
Peripheral Arterial ◽  
Toe Pressure

The hemodynamic definition of critical limb ischemia (CLI) has evolved over time but remains controversial. We compared the prediction of major amputation by 3 hemodynamic methods. Patients were selected from the Cohorte des Patients ARTériopathes cohort of patients hospitalized for peripheral arterial disease. Patients with CLI were enrolled according to the Trans-Atlantic Inter-Society Consensus Document on Management of Peripheral Arterial Disease II definition and followed up for at least 1 year. We compared the major amputation rate according to initial ankle pressure (AP), systolic toe pressure (STP), and forefoot transcutaneous oxygen pressure (TcPO2); 556 patients were included and divided into surgical (264) and medical (292) groups. The AP failed to identify 42% of patients with CLI. After 1 year, 27% of medical and 17% of surgical patients had undergone major amputation. The TP <30 mm Hg predicted major amputation in the whole sample and in the medical group (odds ratio [OR] 3.5 [1.7-7.1] and OR 5 [2-12.4], respectively), but AP did not. The TcPO2 <10 mm Hg also predicted major amputation (OR 2.3 [1.5-3.5] and OR 3.8 [2.1-6.8]). The best predictive thresholds to predict major amputation were STP <30 mm Hg and TcPO2 <10 mm Hg. None of these methods performed before surgery was able to predict outcome in the revascularized patients.

scholarly journals Proximal Ischemia is a Frequent Cause of Exercise-Induced Pain in Patients with a Normal Ankle to Brachial Index at Rest

2013 ◽  
Vol 1;16 (1;1) ◽  
pp. 57-64
Author(s):  
Dr. Pierre P. Abraham
Keyword(s):  
Peripheral Arterial Disease ◽  
Oxygen Pressure ◽  
Regional Blood Flow ◽  
Ankle Brachial Index ◽  
Accurate Method ◽  
Arterial Disease ◽  
Transcutaneous Oxygen ◽  
Transcutaneous Oxygen Pressure ◽  
Exercise Induced ◽  
Peripheral Arterial

Background: Excluding a vascular origin of exercise-related pain is often difficult in clinical practice. Recent papers have underlined the frequent association of concurrent lumbar spine degenerative disease and peripheral arterial disease. Furthermore, even when suspected, isolated exercise-induced proximal ischemia is difficult to diagnose. Measurement of transcutaneous oxygen pressure (tcpO2) is an interesting and accurate method to differentiate proximal (buttock) from distal (calf) regional blood flow impairment (RBFI) during exercise. Objectives: We searched for isolated proximal-without-distal RBFI as a possible cause of claudication, in patients with borderline (ABI-b: 0.91 - 0.99) or normal (ABI-n: 1.00 to 1.40) ankle to brachial index at rest. Study design: Retrospective cohort design study. We analyzed patients referred to our laboratory with symptom limiting claudication and an ankle brachial index within normal limits. Settings: University-based exercise-investigation center. Methods: Over a 12-year period, we identified 463 patients referred to our laboratory that had their lowest resting ABI between 0.90 and 1.40. The tcpO2 on chest, buttocks, and calves were recorded during treadmill walking tests (3.2 km/h, 10% slope) in 220 ABI-b and 243 ABI-n unique consecutive patients complaining of limiting claudication (each patient’s ABI was the lowest of the 2 legs). Limiting claudication was defined as the reported inability to walk 1 kilometer without stopping. A DROP index (limb tcpO2-changes minus chest tcpO2-changes from rest) below -15 mmHg was used to indicate a positive result (i.e. exercise-induced RBFI). Results: Treadmill exercise showed evidence for proximal or distal RBFI, of at least one side, in 128 out of 220 patients (58.2%) and in 86 out of 243 (35.4%) patients with ABI-b and ABI-n, respectively. Isolated proximal-without-distal RBFI was found in 32 out of the 128 (25.0 %) positive tests in ABI-b and 32 out of the 86 (37.2%) positive tests in ABI-n patients. Limitations: Study limitations include the absence of systematic follow-up of diagnosed patients and absence of systematic search for cardio-respiratory co-morbid conditions. Conclusion: Isolated proximal-without distal RBFI is found in approximately one out of 7 patients complaining of symptom limiting claudication with a borderline or normal resting ABI. Exercise-tcpO2 may help to discriminate patients with arterial claudication that could benefit from invasive vascular investigations and procedures. Key Words: Claudication, diagnosis, prevalence, peripheral arterial disease, transcutaneous oxygen pressure, pathophysiology, exercise testing, arterial pressure, vascular disease

Peripheral Arterial Disease in Persons with Diabetic Foot Ulceration: a Current Comprehensive Overview

2020 ◽  
Vol 16 ◽  
Author(s):  
Meloni Marco ◽  
Izzo Valentina ◽  
Morosetti Daniele ◽  
Da Ros Valerio ◽  
Panunzi Andrea ◽  
...  
Keyword(s):  
Peripheral Arterial Disease ◽  
Diabetic Foot ◽  
Limb Ischemia ◽  
Developed Countries ◽  
Arterial Disease ◽  
Major Amputation ◽  
Comprehensive Overview ◽  
Foot Ulceration ◽  
Cardiovascular Morbidity And Mortality ◽  
Peripheral Arterial

-: In developed countries, the prevalence of persons with diabetes and peripheral arterial disease (PAD) is approximately 50%. The presence of PAD is associated with non-healing ulcers, major amputation, cardiovascular morbidity, and mortality. It is estimated that 50% of persons with diabetes, foot ulceration and PAD have a 5-year mortality rate . Therefore, subjects with ischemic diabetic foot ulcers (DFUs) should be considered a special group of patients with specific clinical characteristics, general health status and prognosis. -: In persons with ischemic DFUs, an early diagnosis and treatment is mandatory to reduce the risk of worse outcomes such as major amputation. Revascularization of occluded lower extremity arteries is the main treatment to restore blood flow in the foot and promote wound healing. Nonetheless, there are several unmet needs in the management of diabetic subjects with PAD and foot ulceration as medical therapy, diagnostic criteria and indications for revascularization, revascularization strategy and technical approach as well as the management of no-option critical limb ischemia patients. -: Furthermore, it is a common opinion that there is an evolution of PAD features in diabetic persons which seem to present a more aggressive pattern. This may be related to the frequent presence of concomitant comorbidities such as renal failure which could influence the characteristics of atherosclerotic plaques and their distribution. -: The aim of this review is to commence a complete overview and state of the art in the treatment of patients with diabetes, PAD, and foot ulceration and to describe the current challenges and future perspectives.

Abstract P250: Incidence of Hospitalized Peripheral Arterial Disease and Critical Limb Ischemia: The Atherosclerosis Risk in Communities (ARIC) Study

Circulation ◽  
2012 ◽  
Vol 125 (suppl_10) ◽  
Author(s):  
Corey A Kalbaugh ◽  
Anna Kucharska-Newton ◽  
Laura Loehr ◽  
Elizabeth Selvin ◽  
Aaron R Folsom ◽  
...  
Keyword(s):  
Risk Factors ◽  
African Americans ◽  
Peripheral Arterial Disease ◽  
Lower Extremity ◽  
Limb Ischemia ◽  
Arterial Disease ◽  
Atherosclerosis Risk In Communities ◽  
Atherosclerosis Risk ◽  
Baseline Characteristics ◽  
Peripheral Arterial

Introduction: Lower extremity peripheral arterial disease (PAD) affects between 12% and 20% of Americans over the age of 65. PAD compromises quality of life, contributes a high burden of disability and its related health care costs exceed $4 billion/year, yet this preventable CVD outcome remains understudied. Aims: Assess the incidence of hospitalized PAD, and of the most severe form of PAD, critical limb ischemia (CLI), in middle-aged men and women, and evaluate their risk factors in a bi-ethnic, population-based cohort. We hypothesized that incidence of hospitalized PAD and CLI are higher in African Americans, and that modifiable atherosclerosis risk factors in middle age predict these sequelae of PAD. Methods: We analyzed data from 13,865 participants from the Atherosclerosis Risk in Communities Study aged 45–64 without PAD at baseline (1987–89). Incident PAD and CLI events were identified using ICD-9 codes from active surveillance of all hospitalizations among cohort participants from 1987 through 2008. All estimates are incidence rates per 10,000 person-years; nominal statistical significance was achieved for all baseline characteristic comparisons reported. Results: There were 707 incident hospitalized PAD during a median of 18 years of follow-up (249,570 person-years). The overall age-adjusted incidence of PAD and limb-threatening CLI were 26.0 and 9.6 per 10,000 person-years, respectively. Incidence of hospitalized PAD was higher in African Americans than whites (34.7 vs. 23.2) and in men compared to women (32.4 vs. 26.7). Baseline characteristics associated with age-adjusted incident PAD (per 10,000 person-years) compared to their referent groups were diabetes (91.2 vs. 19.0), history of smoking (33.6 vs. 16.2), hypertension (42.6 vs. 18.6), coronary heart disease (81.4 vs. 24.1), and obesity (41.5 vs. 20.2). Incidence of CLI also was higher among African Americans (21.0 vs. 5.9) and in men (10.5 vs. 8.9 per 10,000 person-years). Baseline characteristics associated with incident CLI were similar to those for PAD. Conclusions: The absolute risk of hospitalized lower extremity PAD in this community-based cohort is of a magnitude similar to that of heart failure and of stroke. As modifiable factors are strongly predictive of the long-term risk of hospitalized PAD and CLI, particularly among African Americans, our results highlight the need for effective risk factor prevention and control.

Impact of Kidney Disease on Peripheral Arterial Interventions: A Systematic Review and Meta-Analysis

2020 ◽  
Vol 51 (7) ◽  
pp. 527-533
Author(s):  
Mahesh Anantha-Narayanan ◽  
Azfar Bilal Sheikh ◽  
Sameer Nagpal ◽  
Kim G. Smolderen ◽  
Jeffrey Turner ◽  
...  
Keyword(s):  
Systematic Review ◽  
Lower Extremity ◽  
Meta Analysis ◽  
Limb Ischemia ◽  
Arterial Disease ◽  
Major Amputation ◽  
Early Mortality ◽  
Comorbid Condition ◽  
Increased Risk ◽  
Peripheral Arterial

Background: There are limited data on outcomes of patients undergoing peripheral arterial disease (PAD) interventions who have comorbid CKD/ESRD versus those who do not have such comorbid condition. We performed a systematic review and meta-analysis to analyze outcomes in this patient population. Methods: Five databases were searched for studies comparing outcomes of lower extremity PAD interventions for claudication and critical limb ischemia (CLI) in patients with CKD/ESRD versus non-CKD/non-ESRD from January 2000 to June 2019. Results: Our study included 16 observational studies with 44,138 patients. Mean follow-up was 48.9 ± 27.4 months. Major amputation was higher with CKD/ESRD compared with non-CKD/non-ESRD (odds ratio [OR 1.97] [95% confidence interval [CI] 1.39–2.80], p = 0.001). Higher major amputations with CKD/ESRD versus non-CKD/non-ESRD were only observed when indication for procedure was CLI (OR 2.27 [95% CI 1.53–3.36], p < 0.0001) but were similar for claudication (OR 1.15 [95% CI 0.53–2.49], p = 0.72). The risk of early mortality was high with CKD/ESRD patients undergoing PAD interventions compared with non-CKD/non-ESRD (OR 2.55 [95% CI 1.65–3.96], p < 0.0001), which when stratified based on indication, remained higher with CLI (OR 3.14 [95% CI 1.80–5.48], p < 0.0001) but was similar with claudication (OR 1.83 [95% CI 0.90–3.72], p = 0.1). Funnel plot of included studies showed moderate bias. Conclusions: Patients undergoing lower extremity PAD interventions for CLI who also have comorbid CKD/ESRD have an increased risk of experiencing major amputations and early mortality. Randomized trials to understand outcomes of PAD interventions in this at-risk population are essential.

scholarly journals Simultaneous pain intensity rating and quantification of ischemia throughout exercise and recovery in proximal versus distal arterial claudication

2017 ◽  
Vol 22 (6) ◽  
pp. 490-497 ◽  
Author(s):  
Alban Fouasson-Chailloux ◽  
Pierre Abraham ◽  
Christophe Colas-Ribas ◽  
Mathieu Feuilloy ◽  
Bruno Vielle ◽  
...  
Keyword(s):  
Pain Intensity ◽  
Oxygen Pressure ◽  
Limb Ischemia ◽  
Constant Load ◽  
Pain Rating ◽  
Transcutaneous Oxygen ◽  
Intensity Rating ◽  
Transcutaneous Oxygen Pressure ◽  
Rating Changes ◽  
Distal Localization

Data on simultaneous hemodynamic changes and pain rating estimation in arterial claudication while walking are lacking. This study was conducted to determine if a difference in transcutaneous oxygen pressure (tc pO2) exists between proximal and distal localization at pain appearance (PAINapp), maximal pain (PAINmax) and pain relief (PAINrel) in proximal or distal claudication and if a relationship exists between tc pO2 changes and pain intensity. We analyzed the pain rating (Visual Analog Scale (VAS)) to lower limb ischemia, measured with the decrease from rest of oxygen pressure (DROP) tc pO2 index during constant-load treadmill tests in patients with calf ( n = 41) or buttock ( n = 19) claudication. Calves versus buttocks results were analyzed with ANOVA tests. The R2 correlation coefficient between individual VAS versus DROP was calculated. Ischemia intensity versus pain rating changes were correlated. Significant ischemia was required for pain appearance, but pain disappeared despite the persistence of ischemia. We observed no statistical difference for DROP at PAINapp, PAINmax or PAINrel between proximal or distal claudication. A significant correlation between pain rating versus DROP was found: from PAINapp to PAINmax, R2 = 0.750 (calves) and 0.829 (buttocks), and from PAINmax to PAINrel, R2 = 0.608 (calves) and 0.560 (buttocks); p<0.05. Pain appeared after a significant decrease of hemodynamic parameters but disappeared while parameters were not normalized. No difference in pain rating was found in proximal versus distal claudication.

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