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Using T1 mapping indices to evaluate muscle function and predict conservative treatment outcomes in diabetic patients with peripheral arterial disease. Eur Radiol 2023:10.1007/s00330-023-09392-8. [PMID: 36651955 DOI: 10.1007/s00330-023-09392-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2022] [Revised: 12/10/2022] [Accepted: 12/23/2022] [Indexed: 01/19/2023]
Abstract
OBJECTIVES To investigate interstitial muscle fibrosis via T1 mapping indices and its relationships with muscle function and conservative treatment outcomes. METHODS A total of 49 DM patients with PAD were prospectively recruited from 2016 to 2017. All PAD patients underwent pre-treatment MRI with conservative treatment via a rehabilitation program and antiplatelet therapy. The need to require percutaneous transluminal angioplasty intervention was recorded as intolerance to conservative treatment outcomes. We quantified calf interstitial muscle fibrosis using T1 mapping indices (native T1, post-contrast T1, and the extracellular volume fraction [ECV]). Muscle function was evaluated using a 6-min walking test (6MWT) and a 3-min stepping test (3MST). PAD patients were divided into two groups according to their tolerance or intolerance of the conservative treatment. Pearson's correlation, reproducibility, and multivariable Cox hazard analyses were performed with p < 0.05 indicating statistical significance. RESULTS Among the T1 mapping indices in the posterior compartment of the calf in PAD patients, the native T1 value was significantly correlated with 6MWT (r = -0.422, p = 0.010) and 3MST (r = -0.427, p = 0.009). All T1 mapping indices showed excellent intra-observer and inter-observer correlations. ECV was an independent predictor of conservative treatment intolerance (average ECV, hazard ratio: 1.045, 95% confidence interval: 1.011-1.079, p = 0.009). CONCLUSIONS T1 mapping measurements are reproducible with excellent intra-observer and inter-observer correlations. T1 mapping indices may be predictive of treatment and functional outcomes and carry promise in patient evaluation. TRIAL REGISTRATION Clinical Trials Identifier: NCT02850432 . KEY POINTS • T1 mapping measurements of the calf muscles are reproducible with excellent intra-observer and inter-observer correlations (0.98 and 0.95 for anterior and posterior compartment muscle extracellular volume matrix [ECV] measurements, respectively). • ECV is shown to independently predict conservative treatment intolerance. • T1 mapping indices may be predictive of treatment and functional outcomes and carry promise in patient evaluation.
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Role of Lipid-Lowering Therapy in Peripheral Artery Disease. J Clin Med 2022; 11:jcm11164872. [PMID: 36013107 PMCID: PMC9410277 DOI: 10.3390/jcm11164872] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2022] [Revised: 08/05/2022] [Accepted: 08/16/2022] [Indexed: 11/16/2022] Open
Abstract
Atherosclerosis is a multifactorial, lipoprotein-driven condition that leads to plaque formation within the arterial tree, leading to subsequent arterial stenosis and thrombosis that accounts for a large burden of cardiovascular morbidity and mortality globally. Atherosclerosis of the lower extremities is called peripheral artery disease and is a major cause of loss in mobility, amputation, and critical limb ischemia. Peripheral artery disease is a common condition with a gamut of clinical manifestations that affects an estimated 10 million people in the United States of America and 200 million people worldwide. The role of apolipoprotein B-containing lipoproteins, such as LDL and remnant lipoproteins in the development and progression of atherosclerosis, is well-established. The focus of this paper is to review existing data on lipid-lowering therapies in lower extremity atherosclerotic peripheral artery disease.
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Martini R. Current opinion on the role of the foot perfusion in limb amputation risk assessment. Clin Hemorheol Microcirc 2020; 76:405-412. [PMID: 32675403 DOI: 10.3233/ch-200901] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
The most important and consulted guidelines dealing with not healing foot ulcers suggest the measurement of the foot perfusion (FP) to exclude the critical limb ischemia (CLI), because of the high risk of limb amputation. But the recommended cut-off values of FP fail to include all the heterogeneity of patients of the real-life with a not healing ulcer. Often these patients are diabetics with a moderate PAD but with a high level of infection. To meet this goal, in 2014, the Society for Vascular Surgery has published the "Lower Extremity Threatened Limb Classification System: Risk stratification based on Wound, Infection, and foot Ischemia (WIfI)." This new classification system has changed the criteria of assessment of limb amputation risk, replacing the single cut-off value role with a combination of a spectrum of perfusion values along with graded infection and dimension levels of skin ulcers. The impact of this new classification system was remarkable so to propose the substitution of the CLI definition, with the new Critical limb-threatening ischemia (CLTI), that seems to define the limb amputation risk more realistically.
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Affiliation(s)
- Romeo Martini
- Unità Operativa di Angiologia, Azienda Ospedaliera Universitaria di Padova, Padova, Italy
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4
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Gentile F, Lundberg G, Hultgren R. Outcome for Endovascular and Open Procedures in Infrapopliteal Lesions for Critical Limb Ischemia: Registry Based Single Center Study. Eur J Vasc Endovasc Surg 2016; 52:643-649. [DOI: 10.1016/j.ejvs.2016.07.013] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2016] [Accepted: 07/11/2016] [Indexed: 10/21/2022]
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Computed Tomography Fractional Flow Reserve Can Identify Culprit Lesions in Aortoiliac Occlusive Disease Using Minimally Invasive Techniques. Ann Vasc Surg 2016; 38:151-157. [PMID: 27575305 DOI: 10.1016/j.avsg.2016.08.010] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2016] [Revised: 08/12/2016] [Accepted: 08/18/2016] [Indexed: 11/22/2022]
Abstract
BACKGROUND Currently, the gold standard diagnostic examination for significant aortoiliac lesions is angiography. Fractional flow reserve (FFR) has a growing body of literature in coronary artery disease as a minimally invasive diagnostic procedure. Improvements in numerical hemodynamics have allowed for an accurate and minimally invasive approach to estimating FFR, utilizing cross-sectional imaging. We aim to demonstrate a similar approach to aortoiliac occlusive disease (AIOD). METHODS A retrospective review evaluated 7 patients with claudication and cross-sectional imaging showing AIOD. FFR was subsequently measured during conventional angiogram with pull-back pressures in a retrograde fashion. To estimate computed tomography (CT) FFR, CT angiography (CTA) image data were analyzed using the SimVascular software suite to create a computational fluid dynamics model of the aortoiliac system. Inlet flow conditions were derived based on cardiac output, while 3-element Windkessel outlet boundary conditions were optimized to match the expected systolic and diastolic pressures, with outlet resistance distributed based on Murray's law. The data were evaluated with a Student's t-test and receiver operating characteristic curve. RESULTS All patients had evidence of AIOD on CT and FFR was successfully measured during angiography. The modeled data were found to have high sensitivity and specificity between the measured and CT FFR (P = 0.986, area under the curve = 1). The average difference between the measured and calculated FFRs was 0.136, with a range from 0.03 to 0.30. CONCLUSIONS CT FFR successfully identified aortoiliac lesions with significant pressure drops that were identified with angiographically measured FFR. CT FFR has the potential to provide a minimally invasive approach to identify flow-limiting stenosis for AIOD.
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Morisaki K, Yamaoka T, Iwasa K, Ohmine T. Popliteal-Peroneal Artery Bypass via the Posterior Approach: A Case Report. Ann Vasc Surg 2016; 36:292.e1-292.e4. [PMID: 27421203 DOI: 10.1016/j.avsg.2016.03.009] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2015] [Revised: 02/11/2016] [Accepted: 03/06/2016] [Indexed: 11/25/2022]
Abstract
We report the case of a 65-year-old man with critical limb ischemia treated with popliteal-peroneal bypass via the posterior approach and endarterectomy of the P2 popliteal artery. The posterior approach is useful in a number of situations, such as cases of arteriosclerotic disease of the crural arteries, where the target artery is the distal posterior tibial artery or peroneal artery; where the inflow site is the popliteal artery; in cases of a poor-quality greater saphenous vein, limited length of vein, and a preferable lesser saphenous vein; and in reoperation after failed bypass via a medial approach. Vascular surgeons should consider the posterior approach as an alternative procedure in below-knee revascularization.
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Affiliation(s)
- Koichi Morisaki
- Department of Vascular Surgery, Matsuyama Red Cross Hospital, Matsuyama, Ehime, Japan.
| | - Terutoshi Yamaoka
- Department of Vascular Surgery, Matsuyama Red Cross Hospital, Matsuyama, Ehime, Japan
| | - Kazuomi Iwasa
- Department of Vascular Surgery, Matsuyama Red Cross Hospital, Matsuyama, Ehime, Japan
| | - Takahiro Ohmine
- Department of Vascular Surgery, Hiroshima Red Cross Hospital and Atomic-bomb Survivors Hospital, Hiroshima, Hiroshima, Japan
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Lack of Evidence for Dual Antiplatelet Therapy after Endovascular Arterial Procedures: A Meta-analysis. Eur J Vasc Endovasc Surg 2016; 52:253-62. [PMID: 27241270 DOI: 10.1016/j.ejvs.2016.04.023] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2015] [Accepted: 04/25/2016] [Indexed: 12/22/2022]
Abstract
INTRODUCTION Dual antiplatelet therapy (DAPT) has mainly replaced mono antiplatelet therapy (MAPT) and is recommended after arterial endovascular revascularization. The aim of this meta-analysis was to summarize the available evidence for DAPT after endovascular revascularization throughout the arterial system. METHODS A systematic search was performed in Medline, Embase, and the Cochrane Register. Two reviewers independently performed data extraction and quality assessment using the Cochrane Collaboration risk of bias assessment tool. Included in the search were randomized controlled trials (RCTs) comparing DAPT with MAPT after endovascular procedures for the treatment of coronary, carotid, or peripheral artery disease, reporting at least one clinical outcome. Articles were excluded if patients received anticoagulation in addition to antiplatelet therapy in the post-procedural phase. The primary outcome was restenosis or stent thrombosis, and secondary outcomes were major adverse cardiac events (MACE), target lesion revascularization, cerebrovascular accident or transient ischemic attack, bleeding, and death. Meta-analyses of binary outcomes were performed using the random effects model and described as risk ratios (RRs) and 95% confidence intervals (95% CIs). Chi-square tests were used to test for heterogeneity. RESULTS Nine articles were included in this study, involving lower limb peripheral arteries (1), carotid arteries (2), and coronary arteries (6). The pooled results of coronary trials showed a RR for restenosis with DAPT of 0.60 (95% CI 0.28-1.31) and for myocardial infarction 0.49 (95% CI 0.12-2.03). In the carotid artery trials the RR for restenosis was 0.22 (95% CI 0.04-1.20) and for peripheral arteries 1.02 (95% CI 0.56-1.82). A meta-analysis of bleeding risk of all the included trials showed a RR of 1.06 (95% CI 0.32-3.52) with DAPT. CONCLUSION The available evidence comparing DAPT with MAPT after endovascular arterial revascularization is limited and the majority of trials were conducted in the cardiology field. No significant evidence for superiority of DAPT compared with MAPT was found, but there was also no evidence of an increased bleeding risk with DAPT over MAPT.
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The management of diabetic foot: A clinical practice guideline by the Society for Vascular Surgery in collaboration with the American Podiatric Medical Association and the Society for Vascular Medicine. J Vasc Surg 2016; 63:3S-21S. [DOI: 10.1016/j.jvs.2015.10.003] [Citation(s) in RCA: 285] [Impact Index Per Article: 35.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2015] [Accepted: 10/08/2015] [Indexed: 12/13/2022]
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9
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Tangelder MJD, Nwachuku CE, Jaff M, Baumgartner I, Duggal A, Adams G, Ansel G, Grosso M, Mercuri M, Shi M, Minar E, Moll FL. A Review of Antithrombotic Therapy and the Rationale and Design of the Randomized Edoxaban in Patients With Peripheral Artery Disease (ePAD) Trial Adding Edoxaban or Clopidogrel to Aspirin After Femoropopliteal Endovascular Intervention. J Endovasc Ther 2015; 22:261-8. [DOI: 10.1177/1526602815574687] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Compared with the coronary setting, knowledge about antithrombotic therapies after endovascular treatment (EVT) is inadequate in patients with peripheral artery disease (PAD). Based on a review of trials and guidelines, which is summarized in this article, there is scant evidence that antithrombotic drugs improve outcome after peripheral EVT. To address this knowledge gap, the randomized, open-label, multinational edoxaban in patients with Peripheral Artery Disease (ePAD) study ( ClinicalTrials.gov identifier NCT01802775) was designed to explore the safety and efficacy of a combined regimen of antiplatelet therapy with clopidogrel and anticoagulation with edoxaban, a selective and direct factor Xa inhibitor, both combined with aspirin. As of July 2014, 203 patients (144 men; mean age 67 years) from 7 countries have been enrolled. These patients have been allocated to once-daily edoxaban [60 mg for 3 months (or 30 mg in the presence of factors associated with increased exposure)] or clopidogrel (75 mg/d for 3 months). All patients received aspirin (100 mg/d) for the 6-month duration of the study. The primary safety endpoint is major or clinically relevant nonmajor bleeding; the primary efficacy endpoint is restenosis or reocclusion at the treated segment(s) measured at 1, 3, and 6 months using duplex ultrasound scanning. All outcomes will be assessed and adjudicated centrally in a masked fashion. The ePAD study is the first of its kind to investigate a combined regimen of antiplatelet therapy and anticoagulation through factor Xa inhibition with edoxaban.
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Affiliation(s)
| | | | - Michael Jaff
- Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA
| | - Iris Baumgartner
- Swiss Cardiovascular Center, University Hospital Bern, Switzerland
| | - Anil Duggal
- Daiichi Sankyo Pharma Development, Edison, NJ, USA
| | - George Adams
- Rex Healthcare, University of North Carolina Health Systems, Raleigh, NC, USA
| | - Gary Ansel
- Riverside Methodist Hospital, Columbus, OH, USA
| | | | | | - Minggao Shi
- Daiichi Sankyo Pharma Development, Edison, NJ, USA
| | - Erich Minar
- Vienna General Hospital, Medical University of Vienna, Austria
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Lumsden AB, Morrissey NJ, Staffa R, Lindner J, Janousek L, Treska V, Stadler P, Moursi M, Storck M, Johansen K, Schermerhorn M, Powell R, Panneton J, Zhou W, Naoum J, Lipsitz E, Buckley C, Timaran C, Jordan W, Darling RC, Silhart Z, Buckley C, Armstrong P, Belkin M, Morrissey N, Porreca F, Cayne N. Randomized controlled trial comparing the safety and efficacy between the FUSION BIOLINE heparin-coated vascular graft and the standard expanded polytetrafluoroethylene graft for femoropopliteal bypass. J Vasc Surg 2015; 61:703-12.e1. [DOI: 10.1016/j.jvs.2014.10.008] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2014] [Accepted: 10/06/2014] [Indexed: 11/25/2022]
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11
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Mustapha J, Diaz-Sandoval LJ. Balloon Angioplasty in Tibioperoneal Interventions for Patients With Critical Limb Ischemia. Tech Vasc Interv Radiol 2014; 17:183-96. [DOI: 10.1053/j.tvir.2014.08.007] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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12
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Gray BH, Diaz-Sandoval LJ, Dieter RS, Jaff MR, White CJ. SCAI expert consensus statement for infrapopliteal arterial intervention appropriate use. Catheter Cardiovasc Interv 2014; 84:539-45. [DOI: 10.1002/ccd.25395] [Citation(s) in RCA: 48] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/31/2013] [Accepted: 01/01/2014] [Indexed: 11/10/2022]
Affiliation(s)
- Bruce H. Gray
- University of South Carolina School of Medicine/Greenville; Greenville South Carolina
| | | | | | - Michael R. Jaff
- MGH Institute for Heart, Vascular and Stroke Care, Harvard University, Boston, Massachusetts
| | - Christopher J. White
- John Ochsner Heart & Vascular institute, Ochsner Medical Center; New Orleans Louisiana
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13
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Clinical consequence of bare metal stent and stent graft failure in femoropopliteal occlusive disease. J Vasc Surg 2013; 58:1525-31. [DOI: 10.1016/j.jvs.2013.05.094] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2013] [Revised: 05/29/2013] [Accepted: 05/29/2013] [Indexed: 11/22/2022]
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Mills JL, Conte MS, Armstrong DG, Pomposelli FB, Schanzer A, Sidawy AN, Andros G. The Society for Vascular Surgery Lower Extremity Threatened Limb Classification System: risk stratification based on wound, ischemia, and foot infection (WIfI). J Vasc Surg 2013; 59:220-34.e1-2. [PMID: 24126108 DOI: 10.1016/j.jvs.2013.08.003] [Citation(s) in RCA: 972] [Impact Index Per Article: 88.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2013] [Revised: 08/09/2013] [Accepted: 08/13/2013] [Indexed: 02/08/2023]
Abstract
Critical limb ischemia, first defined in 1982, was intended to delineate a subgroup of patients with a threatened lower extremity primarily because of chronic ischemia. It was the intent of the original authors that patients with diabetes be excluded or analyzed separately. The Fontaine and Rutherford Systems have been used to classify risk of amputation and likelihood of benefit from revascularization by subcategorizing patients into two groups: ischemic rest pain and tissue loss. Due to demographic shifts over the last 40 years, especially a dramatic rise in the incidence of diabetes mellitus and rapidly expanding techniques of revascularization, it has become increasingly difficult to perform meaningful outcomes analysis for patients with threatened limbs using these existing classification systems. Particularly in patients with diabetes, limb threat is part of a broad disease spectrum. Perfusion is only one determinant of outcome; wound extent and the presence and severity of infection also greatly impact the threat to a limb. Therefore, the Society for Vascular Surgery Lower Extremity Guidelines Committee undertook the task of creating a new classification of the threatened lower extremity that reflects these important considerations. We term this new framework, the Society for Vascular Surgery Lower Extremity Threatened Limb Classification System. Risk stratification is based on three major factors that impact amputation risk and clinical management: Wound, Ischemia, and foot Infection (WIfI). The implementation of this classification system is intended to permit more meaningful analysis of outcomes for various forms of therapy in this challenging, but heterogeneous population.
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Affiliation(s)
- Joseph L Mills
- Division of Vascular and Endovascular Surgery, Southern Arizona Limb Salvage Alliance, University of Arizona Health Sciences Center, Tucson, Ariz.
| | - Michael S Conte
- University of California San Francisco, San Francisco, Calif
| | - David G Armstrong
- Division of Vascular and Endovascular Surgery, Southern Arizona Limb Salvage Alliance, University of Arizona Health Sciences Center, Tucson, Ariz
| | | | | | - Anton N Sidawy
- George Washington University School of Medicine and Health Sciences, Washington, D.C
| | - George Andros
- Amputation Prevention Center, Valley Presbyterian Medical Center, Van Nuys, Calif
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Sadaghianloo N, Jean-Baptiste E, Declemy S, Mousnier A, Brizzi S, Hassen-Khodja R. Percutaneous Angioplasty of Long Tibial Occlusions in Critical Limb Ischemia. Ann Vasc Surg 2013; 27:894-903. [DOI: 10.1016/j.avsg.2013.02.008] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2012] [Accepted: 02/11/2013] [Indexed: 12/01/2022]
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Comparison of initial hemodynamic response after endovascular therapy and open surgical bypass in patients with diabetes mellitus and critical limb ischemia. J Vasc Surg 2012; 56:380-6; discussion 386. [DOI: 10.1016/j.jvs.2012.01.050] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2011] [Revised: 01/17/2012] [Accepted: 01/18/2012] [Indexed: 11/19/2022]
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Abstract
Every 30 s, a lower limb is amputated due to diabetes. Of all amputations in diabetic patients 85% are preceded by a foot ulcer which subsequently deteriorates to a severe infection or gangrene. There is a complexity of factors related to healing of foot ulcers including strategies for treatment of decreased perfusion, oedema, pain, infection, metabolic disturbances, malnutrition, non-weight bearing, wound treatment, foot surgery, and management of intercurrent disease. Patients with diabetic foot ulcer and decreased perfusion do often not have rest pain or claudication and as a consequence non-invasive vascular testing is recommended for early recognition of ulcers in need of revascularisation to achieve healing. A diabetic foot infection is a potentially limb-threatening condition. Infection is diagnosed by the presence or increased rate of signs inflammation. Often these signs are less marked than expected. Imaging studies can diagnose or better define deep, soft tissue purulent collections and are frequently needed to detect pathological findings in bone. The initial antimicrobial treatment as well as duration of treatment is empiric. There is a substantial delay in wound healing in diabetic foot ulcer which has been related to various abnormalities. Several new treatments related to these abnormalities have been explored in wound healing with various successes. An essential part of the strategy to achieve healing is an effective offloading. Many interventions with advanced wound management have failed due to not recognizing the need for effective offloading. A multidisciplinary approach to wounds and foot ulcer has been successfully implemented in different centres with a substantial decrease in amputation rate.
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Affiliation(s)
- Jan Apelqvist
- Department of Endocrinology, University Hospital of Skåne (SUS), 205 02, Malmö, Sweden.
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Lepäntalo M, Apelqvist J, Setacci C, Ricco JB, de Donato G, Becker F, Robert-Ebadi H, Cao P, Eckstein HH, De Rango P, Diehm N, Schmidli J, Teraa M, Moll FL, Dick F, Davies AH. Chapter V: Diabetic foot. Eur J Vasc Endovasc Surg 2012; 42 Suppl 2:S60-74. [PMID: 22172474 DOI: 10.1016/s1078-5884(11)60012-9] [Citation(s) in RCA: 118] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Ulcerated diabetic foot is a complex problem. Ischaemia, neuropathy and infection are the three pathological components that lead to diabetic foot complications, and they frequently occur together as an aetiologic triad. Neuropathy and ischaemia are the initiating factors, most often together as neuroischaemia, whereas infection is mostly a consequence. The role of peripheral arterial disease in diabetic foot has long been underestimated as typical ischaemic symptoms are less frequent in diabetics with ischaemia than in non-diabetics. Furthermore, the healing of a neuroischaemic ulcer is hampered by microvascular dysfunction. Therefore, the threshold for revascularising neuroischaemic ulcers should be lower than that for purely ischaemic ulcers. Previous guidelines have largely ignored these specific demands related to ulcerated neuroischaemic diabetic feet. Any diabetic foot ulcer should always be considered to have vascular impairment unless otherwise proven. Early referral, non-invasive vascular testing, imaging and intervention are crucial to improve diabetic foot ulcer healing and to prevent amputation. Timing is essential, as the window of opportunity to heal the ulcer and save the leg is easily missed. This chapter underlines the paucity of data on the best way to diagnose and treat these diabetic patients. Most of the studies dealing with neuroischaemic diabetic feet are not comparable in terms of patient populations, interventions or outcome. Therefore, there is an urgent need for a paradigm shift in diabetic foot care; that is, a new approach and classification of diabetics with vascular impairment in regard to clinical practice and research. A multidisciplinary approach needs to implemented systematically with a vascular surgeon as an integrated member. New strategies must be developed and implemented for diabetic foot patients with vascular impairment, to improve healing, to speed up healing rate and to avoid amputation, irrespective of the intervention technology chosen. Focused studies on the value of predictive tests, new treatment modalities as well as selective and targeted strategies are needed. As specific data on ulcerated neuroischaemic diabetic feet are scarce, recommendations are often of low grade.
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Affiliation(s)
- M Lepäntalo
- Department of Vascular Surgery, Helsinki University Central Hospital, Helsinki, Finland.
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A Framework for the Evaluation of “Value” and Cost-Effectiveness in the Management of Critical Limb Ischemia. J Am Coll Surg 2011; 213:552-66.e5. [DOI: 10.1016/j.jamcollsurg.2011.07.011] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2011] [Revised: 07/11/2011] [Accepted: 07/14/2011] [Indexed: 11/20/2022]
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Alexandrescu V, Hubermont G. Primary infragenicular angioplasty for diabetic neuroischemic foot ulcers following the angiosome distribution: a new paradigm for the vascular interventionist? Diabetes Metab Syndr Obes 2011; 4:327-36. [PMID: 21969804 PMCID: PMC3180522 DOI: 10.2147/dmso.s23471] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/03/2022] Open
Abstract
The angiosome principle was first described by Jan Taylor in 1987 in the plastic reconstructive surgery field, providing useful information on the vascular anatomy of the human body. Specifically concerning foot and ankle pathology, it may help the clinician to select better vascular access and specific strategies for revascularization. This knowledge may be particularly beneficial when treating diabetic neuroischemic foot wounds associated with particularly aggressive atherosclerotic disease and a poor collateral circulation. The implementation of angiosome-based strategies in diabetic infragenicular vascular reconstruction may afford encouraging wound healing and limb preservation rates using both bypass and endovascular techniques. The minimal invasiveness of these novel strategies enables us to perform more specific and more distal tibial and/or foot arterial reconstructions, in one or multiple targeted vessels. This paper reviews the available literature on this revascularization strategy and focuses on the potential benefit of angiosome-guided primary angioplasty for diabetic ischemic foot ulcers.
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Affiliation(s)
- Vlad Alexandrescu
- Department of Vascular Surgery, Princess Paola Hospital, Marcheen-Famenne, Belgium
| | - Gerard Hubermont
- Department of Diabetology, Princess Paola Hospital, Marche-en-Famenne and Sainte-Thérèse Hospital, Bastogne, Belgium
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Stansby G, Williams R. Angioplasty for Treatment of Isolated Below-the-Knee Arterial Stenosis in Patients With Critical Limb Ischemia. Angiology 2011; 62:357-8. [DOI: 10.1177/0003319710398009] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Affiliation(s)
- Gerard Stansby
- Northern Vascular Unit, Newcastle University and Freeman Hospital, Newcastle upon Tyne, UK,
| | - Robin Williams
- Department of Radiology, Freeman Hospital, Newcastle upon Tyne, UK
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