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https://www.readbyqxmd.com/read/29060787/angiosome-based-time-series-analysis-of-deep-tissue-perfusion-using-diffuse-speckle-contrast-analysis
#1
C B Yeo, K J Lee, C Song
An angiosome is a three dimensional volume of biological tissue which a specific artery governs. Although proven useful for vascular surgery, the direct relationship between arterial flow and microcirculation in specific angiosome remains controversial. Here, we present new optical approach, a four-channel diffuse speckle contrast analysis (DSCA) which can simultaneously measure blood perfusion at different foot area. Based on the hypothesis that same angiosome will support similar low frequency oscillation, we investigated cross-correlation among different DSCA channels...
July 2017: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28839522/the-thermoregulation-of-healthy-individuals-overweight-obese-and-diabetic-from-the-plantar-skin-thermogram-a-clue-to-predict-the-diabetic-foot
#2
REVIEW
Francisco-J Renero-C
Background: Thermoregulation is a complex autonomic process to keep or to dissipate heat in the human body. Methods: In this work, by means of the thermogram of the plantar skin, the thermoregulation of healthy individuals, overweight-obese, and diabetic is discussed. Results: The thermograms of the plantar skin, for the healthy individuals, are: (1) symmetrical, the temperature distribution of the right foot being a mirror image of that of the left foot ; (2) the thermograms of women, on average, are 3°C colder than those of the men; and (3) the temperature distributions decrease distally from the medial longitudinal arch...
2017: Diabetic Foot & Ankle
https://www.readbyqxmd.com/read/28756043/impact-of-angiosome-and-nonangiosome-targeted-peroneal-bypass-on-limb-salvage-and-healing-in-patients-with-chronic-limb-threatening-ischemia
#3
MULTICENTER STUDY
Jean-Baptiste Ricco, Mauro Gargiulo, Andrea Stella, Mohammad Abualhin, Enrico Gallitto, Mathieu Desvergnes, Romain Belmonte, Fabrice Schneider
BACKGROUND: Direct (DIR) or indirect (IND) revascularization of pedal angiosomes in patients with chronic limb-threatening ischemia (CLTI) has an unclear impact on limb salvage and healing. The aim of this study was to evaluate the outcomes of DIR and IND revascularization in patients with a peroneal bypass and tissue loss. METHODS: We conducted a retrospective study of a prospectively maintained database in two European university centers from 2004 to 2015. We extracted from this database all patients with CLTI and tissue loss who had received a bypass to the peroneal artery...
November 2017: Journal of Vascular Surgery
https://www.readbyqxmd.com/read/28670345/the-comparative-efficacy-of-angiosome-directed-and-indirect-revascularisation-strategies-to-aid-healing-of-chronic-foot-wounds-in-patients-with-co-morbid-diabetes-mellitus-and-critical-limb-ischaemia-a-literature-review
#4
Benedictine Y C Khor, Pamela Price
BACKGROUND: Ischaemic ulcerations have been reported to persist and/or deteriorate despite technically successful revascularisations; a higher incidence of which affects patients with diabetes and critical limb ischaemia. In the context of wound healing, it is unclear if applications of the angiosome concept in 'direct revascularisation' (DR) would be able to aid the healing of chronic foot ulcerations better than the current 'best vessel' or 'indirect revascularisation' (IR) strategy in patients with co-morbid diabetes and critical limb ischaemia...
2017: Journal of Foot and Ankle Research
https://www.readbyqxmd.com/read/28541016/pedal-arch-patency-and-not-direct-angiosome-revascularization-predicts-outcomes-of-endovascular-interventions-in-diabetic-patients-with-critical-limb-ischemia
#5
Nicola Troisi, Filippo Turini, Emiliano Chisci, Leonardo Ercolini, Pierfrancesco Frosini, Renzo Lombardi, Francesca Falciani, Cristiana Baggiore, Roberto Anichini, Stefano Michelagnoli
BACKGROUND: Aim of this study was to evaluate the impact of pedal arch status and direct-angiosome revascularization (DAR) on clinical outcomes in diabetic patients with foot wounds undergoing endovascular revascularization. METHODS: Between January 2014 and June 2015 93 diabetic patients with foot wounds underwent endovascular revascularization of at least one below-the-knee vessel. Patients were divided into three groups according to the pedal arch status: complete pedal arch (CPA), incomplete pedal arch (IPA) and absent pedal arch (APA)...
May 24, 2017: International Angiology: a Journal of the International Union of Angiology
https://www.readbyqxmd.com/read/28268585/detection-of-diabetic-foot-hyperthermia-by-using-a-regionalization-method-based-on-the-plantar-angiosomes-on-infrared-images
#6
Y Liu, A Polo, M Zequera, R Harba, R Canals, L Vilcahuaman, Y Bello
Prevention of serious diabetic foot complication like ulceration or infection is an important issue. As the development of thermal graphic technologies, foot temperature-guided avoidance therapy has been recommended. Doctors from Hospital National Dos de Mayo are studying on the risk of the diabetic foot passing from Grade 0 to Grade 1 in the Wagner Scale. This risk to develop ulcers is related to the temperature difference of corresponding area between left and right foot. Generally speaking, the diabetic foot with greater mean temperature difference has more potential to develop ulcers; especially, area whose temperature difference of more than 2...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28226763/detection-of-diabetic-foot-hyperthermia-by-using-a-regionalization-method-based-on-the-plantar-angiosomes-on-infrared-images
#7
Y Liu, A Polo, M Zequera, R Harba, R Canals, L Vilcahuaman, Y Bello, Y Liu, A Polo, M Zequera, R Harba, R Canals, L Vilcahuaman, Y Bello, A Polo, M Zequera, Y Liu, Y Bello, R Canals, L Vilcahuaman, R Harba
Prevention of serious diabetic foot complication like ulceration or infection is an important issue. As the development of thermal graphic technologies, foot temperature-guided avoidance therapy has been recommended. Doctors from Hospital National Dos de Mayo are studying on the risk of the diabetic foot passing from Grade 0 to Grade 1 in the Wagner Scale. This risk to develop ulcers is related to the temperature difference of corresponding area between left and right foot. Generally speaking, the diabetic foot with greater mean temperature difference has more potential to develop ulcers; especially, area whose temperature difference of more than 2...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/27832987/immediate-changes-of-angiosome-perfusion-during-tibial-angioplasty
#8
Ulrich Rother, Katrin Krenz, Werner Lang, Raymund E Horch, Axel Schmid, Marco Heinz, Alexander Meyer, Susanne Regus
OBJECTIVE: In recent years, a controversial discussion about the clinical relevance of the angiosome concept during tibial angioplasty has developed. Therefore, we conducted a prospective study to evaluate the angiosome concept on the level of microcirculation during tibial vascular interventions. METHODS: Thirty patients with isolated tibial angioplasty were examined prospectively. Macrocirculation was evaluated by measurement of the ankle-brachial index (ABI)...
February 2017: Journal of Vascular Surgery
https://www.readbyqxmd.com/read/27693605/the-prognostic-significance-of-different-definitions-for-angiosome-targeted-lower-limb-revascularization
#9
COMPARATIVE STUDY
Kristýna Špillerová, Fausto Biancari, Nicla Settembre, Anders Albäck, Maarit Venermo
BACKGROUND: The definition of angiosome-targeted revascularization is confusing, especially when a tissue lesion affects several angiosomes. Two different definitions of direct revascularization exist in the literature. The study aim was (1) to compare the 2 definitions of direct revascularization in patients with foot lesions involving more than one angiosome and (2) to evaluate which definition better predicts clinical outcome. METHODS: This study cohort comprises 658 patients with Rutherford 5-6 foot lesions who underwent infrapopliteal endovascular or surgical revascularization between January 2010 and July 2013...
April 2017: Annals of Vascular Surgery
https://www.readbyqxmd.com/read/27673541/a-new-approach-for-reconstruction-of-diabetic-foot-wounds-using-the-angiosome-and-supermicrosurgery-concept
#10
Hyun Suk Suh, Tae Suk Oh, Ho Seung Lee, Seung Hwan Lee, Yong Pil Cho, Joong Ryul Park, Joon Pio Hong
BACKGROUND: Major vessels in the diabetic foot are often calcified and inadequate for use as recipient vessels. Thus, a supermicrosurgery technique using small branches or perforators from other collateral vessels with an adequate pulse may be an alternative method. This study evaluated outcome using the supermicrosurgery concept and the risk factors involved. METHODS: Ninety-five cases of diabetic foot reconstruction were reviewed; the average patient age was 57 years; average follow-up was 43...
October 2016: Plastic and Reconstructive Surgery
https://www.readbyqxmd.com/read/27594571/-treatment-of-below-the-knee-lesions-broadening-the-limits-of-vascular-surgery
#11
C Caradu, A S Battut, C Gonthier, D Midy, E Ducasse
One third of patients with critical limb ischemia (CLI) has below the knee lesions and requires a restoration of direct blood flow into the foot. However, many of these patients are ineligible for open surgery. The primary goals thus become pain relief and limb salvage over patency. The angiosome concept helps determine the target artery to treat in priority. The endovascular approach has decreased morbidity and mortality rates compared to distal bypass surgery; while subintimal retrograde, trans-collateral and loop techniques push the limits of open surgery by reopening the plantar arch, thereby improving run-off...
December 2016: Journal des Maladies Vasculaires
https://www.readbyqxmd.com/read/27441570/is-angiosome-targeted-angioplasty-effective-for-limb-salvage-and-wound-healing-in-diabetic-foot-a-meta-analysis
#12
Kum Ju Chae, Jin Yong Shin
PURPOSE: Given that the efficacy of employing angiosome-targeted angioplasty in the treatment of diabetic foot remains controversial, this study was conducted to examine its efficacy. METHODS: We performed a systematic literature review and meta-analysis using core databases, extracting the treatment modality of angiosome-targeted angioplasty as the predictor variable, and limb salvage, wound healing, and revision rate as the outcome variables. We used the Newcastle-Ottawa Scale to assess the study quality, along with the Cochrane Risk of Bias Tool...
2016: PloS One
https://www.readbyqxmd.com/read/27427347/below-the-knee-angioplasty-for-critical-limb-ischemia-results-of-a-series-of-157-procedures-and-impact-of-the-angiosome-concept
#13
Marie Pavé, Laurent Benadiba, Ludovic Berger, Djelloul Gouicem, Maxime Hendricks, Didier Plissonnier
BACKGROUND: To evaluate the long-term clinical results of below-the-knee percutaneous transluminal angioplasty (BTK-PTA) with or without stenting, in patients with critical limb ischemia (CLI), and to determine factors affecting clinical results including the role of the angiosome concept. METHODS: All patients undergoing primary BTK-PTA from January 2007 to December 2011 were included. Primary patency, assisted patency, limb salvage, survival, and wound healing were assessed using the Kaplan-Meier method...
October 2016: Annals of Vascular Surgery
https://www.readbyqxmd.com/read/27423992/determining-end-points-for-critical-limb-ischemia-interventions
#14
REVIEW
Kyle J Cooper, Constantino Peña, James Benenati
Critical limb ischemia is a condition that has increased in prevalence and carries a high degree of morbidity. Although endovascular therapy for treatment of patients with critical limb ischemia has undergone significant advances with improved outcomes over the past decade, these patients often have multilevel disease, and it may take weeks or months for ulceration healing. For this reason, the acceptable therapeutic end points during and immediately following revascularization remain somewhat obscure. There are multiple tools available to guide the treating vascular specialist in this regard...
June 2016: Techniques in Vascular and Interventional Radiology
https://www.readbyqxmd.com/read/26970103/oximetric-angiosome-imaging-in-diabetic-feet
#15
Jie Zheng, David Muccigrosso, Xiaodong Zhang, Hongyu An, Andrew R Coggan, Bashir Adil, Charles F Hildebolt, Chandu Vemuri, Patrick Geraghty, Mary K Hastings, Michael J Mueller
PURPOSE: To develop a noncontrast oximetric angiosome imaging approach to assess skeletal muscle oxygenation in diabetic feet. MATERIALS AND METHODS: In four healthy and five subjects with diabetes, the feasibility of foot oximetry was examined using a 3T clinical magnetic resonance imaging (MRI) scanner. The subjects' feet were scanned at rest and during a toe-flexion isometric exercise. The oxygen extraction fraction of skeletal muscle was measured using a susceptibility-based MRI method...
October 2016: Journal of Magnetic Resonance Imaging: JMRI
https://www.readbyqxmd.com/read/26858079/management-of-critical-limb-ischemia
#16
Scott Kinlay
Critical limb ischemia (CLI) is a clinical syndrome of ischemic pain at rest or tissue loss, such as nonhealing ulcers or gangrene, related to peripheral artery disease. CLI has a high short-term risk of limb loss and cardiovascular events. Noninvasive or invasive angiography help determine the feasibility and approach to arterial revascularization. An endovascular-first approach is often advocated based on a lower procedural risk; however, specific patterns of disease may be best treated by open surgical revascularization...
February 2016: Circulation. Cardiovascular Interventions
https://www.readbyqxmd.com/read/26802295/the-use-of-the-angiosome-concept-for-treating-infrapopliteal-critical-limb-ischemia-through-interventional-therapy-and-determining-the-clinical-significance-of-collateral-vessels
#17
MULTICENTER STUDY
Xiang-Tao Zheng, Rui-Chao Zeng, Jing-Yong Huang, Le-Men Pan, Xiang Su, Zi-Heng Wu, Guan-Feng Yu
BACKGROUND: The purpose of this study was to evaluate the clinical significance of the involvement of collateral vessels in interventional therapy based on the angiosome concept for infrapopliteal critical limb ischemia (CLI). METHODS: We enrolled 486 patients with unilateral infrapopliteal CLI (Rutherford Stage 5 or 6) treated at 2 hospitals from January 2005 to December 2014. Using the angiosome concept, the patients were categorized into 3 groups: the direct revascularization (DR) group, the indirect revascularization through collaterals (IR-tc) group, and the indirect revascularization without collaterals (IR-wc) group...
April 2016: Annals of Vascular Surgery
https://www.readbyqxmd.com/read/26238006/-angiosome-directed-revascularization-of-critical-limb-ischaemia
#18
REVIEW
Kim Houlind
Critical limb ischaemia is the major cause of amputation in the developed world. When performing revascularization of the lower limb, guidelines recommend grafting of the "least diseased distal artery with the best continuous run-off to the ankle/foot... regardless of location" often implying indirect perfusion of the ischaemic area through collaterals. An alter-native strategy, called the "angiosome model", advocates a strategy which provides blood supply directly to the ischaemic area. This paper reviews the current evidence of indirect versus angiosome-directed revascularization of the lower limb...
July 27, 2015: Ugeskrift for Laeger
https://www.readbyqxmd.com/read/25879550/improving-the-performance-of-small-amputations-in-complicated-forms-of-diabetic-foot
#19
T Gvazava, G Smirnov, V Petrova, A Remezov, V Akimov
The aim of the study was comparative assessment of the effectiveness of typical and atypical amputations at the level of footstep in patients with the most complicated course of the diabetic foot syndrome (DFS). The patients suffering from diabetes mellitus type 2 and purulo-necrotic complications of the DFS, treated in the surgical department of the № 1 Pirogov National Surgical and Medical Center of the Sankt Petersburg Clinical Complex were investigated. The study group included 68 patients who underwent atypical surgical interventions taking into account blood flow angiosomes of footstep tissues...
March 2015: Georgian Medical News
https://www.readbyqxmd.com/read/25874473/-vascular-medicine-needs-more-evidence-recent-results-and-meta-analyses-for-the-treatment-of-diabetic-feet
#20
G Torsello, S Debus, F Meyer, R T Grundmann
BACKGROUND: This overview comments on clinical trials and meta-analyses from the literature on the treatment of diabetic feet. METHODS: For the literature review, the MEDLINE database (PUBMED) was searched under the key words "diabetic foot". Publications of the last three years (2012 to 2014) were extracted. RESULTS: For patients with diabetic feet, both endovascular (ER) and open (OR) revascularisation techniques are possible. There are not sufficient data to demonstrate whether open bypass surgery or endovascular interventions are more effective in these patients...
April 2015: Zentralblatt Für Chirurgie
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