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Isolated limb perfusion

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https://www.readbyqxmd.com/read/28515994/in-vivo-reflectance-confocal-microscopy-a-useful-non-invasive-tool-to-assess-the-response-to-isolated-limb-perfusion-for-superficial-pigmented-melanoma-in-transit-metastatic-disease-report-of-a-case
#1
Rastine Merat, Wolf-Henning Boehncke, Gürkan Kaya
Complete response can be difficult to assess after isolated limb perfusion (ILP) for metastatic in-transit melanoma, especially when numerous and unresectable post-necrotic persisting pigmented lesions occur. These residual lesions are mainly seen in the more superficial and pigmented types of metastatic disease and correspond to the residual melanophage granuloma that persists after tumor tissues undergo complete necrosis. Reflectance confocal microscopy (RCM) is a non-invasive technique that allows the exploration of the superficial dermis...
April 2017: Dermatology Practical & Conceptual
https://www.readbyqxmd.com/read/28470333/extracorporeal-perfusion-of-isolated-organs-of-large-animals-bridging-the-gap-between-in-vitro-and-in-vivo-studies
#2
Carola R Daniel, Raphael Labens, David Argyle, Theresia F Licka
Since the early 20th century extracorporeal perfusion of large animal organs has been used to investigate a broad variety of research questions, thereby overcoming common draw backs of in vitro studies without suffering from ethical concerns associated with live animal research. The technique is in accordance with the 3R principles and represents an excellent opportunity to investigate in detail the physiology of organs under standardised conditions. It is also suitable for the translation of basic pre-clinical research into a more relevant arena prior to or avoiding altogether live animal research...
May 3, 2017: ALTEX
https://www.readbyqxmd.com/read/28444128/low-dose-ionizing-radiation-induces-therapeutic-neovascularization-in-a-pre-clinical-model-of-hindlimb-ischemia
#3
Augusto Ministro, Paula de Oliveira, Raquel J Nunes, André Dos Santos Rocha, Adriana Correia, Tânia Carvalho, José Rino, Pedro Faísca, Jorg D Becker, João Goyri-O'Neill, Filomena Pina, Esmeralda Poli, Bruno Silva-Santos, Fausto Pinto, Marc Mareel, Karine Serre, Susana Constantino Rosa Santos
Aims: We have previously shown that low-dose ionizing radiation (LDIR) induces angiogenesis but there is no evidence that it induces neovascularization in the setting of peripheral arterial disease. Here, we investigated the use of LDIR as an innovative and non-invasive strategy to stimulate therapeutic neovascularization using a model of experimentally induced hindlimb ischemia (HLI). Methods and results: After surgical induction of unilateral HLI, both hindlimbs of female C57BL/6 mice were sham-irradiated or irradiated with four daily fractions of 0...
June 1, 2017: Cardiovascular Research
https://www.readbyqxmd.com/read/28403880/lower-limb-function-and-quality-of-life-after-ilp-for-soft-tissue-sarcoma
#4
Lars Erik Podleska, Nevda Kaya, Farhad Farzaliyev, Christoph Pöttgen, Sebastian Bauer, Georg Taeger
BACKGROUND: Isolated limb perfusion with TNF-alpha and melphalan (TM-ILP) in combination with complete tumor resection is an effective treatment option for non-resectable soft-tissue sarcoma of the extremities, with limb salvage rates greater than 80%. The aim of this study was to assess quality of life (QoL) after TM-ILP, also with regard to long-term survival. METHODS: We retrospectively examined 27 patients who had primarily non-resectable soft-tissue sarcoma of the leg and who had undergone TM-ILP and complete tumor resection (with limb-sparing intent) during their follow-up examinations using the Quality of Life Questionnaire (QLQ-C30) and the German Short Musculoskeletal Function Assessment (SMFA-D)...
April 13, 2017: World Journal of Surgical Oncology
https://www.readbyqxmd.com/read/28386735/-erratum-to-isolated-limb-perfusion-for-liposarcoma-histopathological-response-and-subgroup-analysis-after-tnf-melphalan-based-ilp
#5
L E Podleska, B Schwindenhammer, F Grabellus, S Bauer, H-U Steinau, G Taeger
No abstract text is available yet for this article.
May 2017: Der Chirurg; Zeitschrift Für Alle Gebiete der Operativen Medizen
https://www.readbyqxmd.com/read/28374977/hypoxic-preconditioning-induced-autophagy-enhances-survival-of-engrafted-endothelial-progenitor-cells-in-ischaemic-limb
#6
Pei Zhou, Yu-Zhen Tan, Hai-Jie Wang, Guo-Dong Wang
Recent clinical studies have suggested that endothelial progenitor cells (EPCs) transplantation provides a modest benefit for treatment of the ischaemic diseases such as limb ischaemia. However, cell-based therapies have been limited by poor survival of the engrafted cells. This investigation was designed to establish optimal hypoxia preconditioning and evaluate effects of hypoxic preconditioning-induced autophagy on survival of the engrafted EPCs. Autophagy of CD34(+) VEGFR-2(+) EPCs isolated from rat bone marrow increased after treatment with 1% O2 ...
April 4, 2017: Journal of Cellular and Molecular Medicine
https://www.readbyqxmd.com/read/28251494/the-role-of-surgery-for-melanoma-in-an-era-of-effective-systemic-therapy
#7
REVIEW
Siavash Raigani, Sonia Cohen, Genevieve M Boland
PURPOSE OF REVIEW: The recent discovery of effective systemic treatments for melanoma has dramatically improved the prognosis for patients with advanced disease. As a result, the multidisciplinary management of melanoma has evolved significantly. In the past decades surgery was reserved for symptomatic palliation in patients with metastatic melanoma. Today surgical treatment of patients responding to systemic therapies has become an integral part of disease control. RECENT FINDINGS: Current efforts are focused on minimizing the morbidity of surgery (laparoscopic inguinal lymph node dissection, selective completion lymphadenectomy) as well as combining surgery with systemic therapy in novel ways (neoadjuvant targeted and/or immunotherapy, isolated limb infusion/perfusion with systemic immunotherapy)...
March 2017: Current Oncology Reports
https://www.readbyqxmd.com/read/28240525/infrapopliteal-calcification-patterns-in-critical-limb-ischemia-diagnostic-pathologic-and-therapeutic-implications-in-the-search-for-the-endovascular-holy-grail
#8
REVIEW
Jihad A Mustapha, Larry J Diaz-Sandoval, Fadi Saab
Critical limb ischemia (CLI) represents the terminal stage of peripheral arterial disease (PAD) and is characterized by multilevel and multivessel disease. Amongst patients with infrainguinal disease, approximately one third have predominantly isolated infrapopliteal disease and the remaining two thirds, a combination of femoropopliteal and infrapopliteal disease. Isolated infrapopliteal disease is mainly seen in the elderly, diabetic, or dialysis-dependent patients. These patients have higher risk of amputation and shorter amputation-free survival...
June 2017: Journal of Cardiovascular Surgery
https://www.readbyqxmd.com/read/28209728/evaluation-of-cell-therapy-on-exercise-performance-and-limb-perfusion-in-peripheral-artery-disease-the-cctrn-pace-trial-patients-with-intermittent-claudication-injected-with-aldh-bright-cells
#9
RANDOMIZED CONTROLLED TRIAL
Emerson C Perin, Michael P Murphy, Keith L March, Roberto Bolli, John Loughran, Phillip C Yang, Nicholas J Leeper, Ronald L Dalman, Jason Alexander, Timothy D Henry, Jay H Traverse, Carl J Pepine, R David Anderson, Scott Berceli, James T Willerson, Raja Muthupillai, Amir Gahremanpour, Ganesh Raveendran, Omaida Velasquez, Joshua M Hare, Ivonne Hernandez Schulman, Vijaykumar S Kasi, William R Hiatt, Bharath Ambale-Venkatesh, João A Lima, Doris A Taylor, Micheline Resende, Adrian P Gee, April G Durett, Jeanette Bloom, Sara Richman, Patricia G'Sell, Shari Williams, Fouzia Khan, Elsie Gyang Ross, Michelle R Santoso, JoAnne Goldman, Dana Leach, Eileen Handberg, Benjamin Cheong, Nichole Piece, Darcy DiFede, Barb Bruhn-Ding, Emily Caldwell, Judy Bettencourt, Dejian Lai, Linda Piller, Lara Simpson, Michelle Cohen, Shelly L Sayre, Rachel W Vojvodic, Lem Moyé, Ray F Ebert, Robert D Simari, Alan T Hirsch
BACKGROUND: Atherosclerotic peripheral artery disease affects 8% to 12% of Americans >65 years of age and is associated with a major decline in functional status, increased myocardial infarction and stroke rates, and increased risk of ischemic amputation. Current treatment strategies for claudication have limitations. PACE (Patients With Intermittent Claudication Injected With ALDH Bright Cells) is a National Heart, Lung, and Blood Institute-sponsored, randomized, double-blind, placebo-controlled, phase 2 exploratory clinical trial designed to assess the safety and efficacy of autologous bone marrow-derived aldehyde dehydrogenase bright (ALDHbr) cells in patients with peripheral artery disease and to explore associated claudication physiological mechanisms...
April 11, 2017: Circulation
https://www.readbyqxmd.com/read/28193783/remote-ischemic-preconditioning-triggers-changes-in-autonomic-nervous-system-activity-implications-for-cardioprotection
#10
Safa Abdul-Ghani, Arnold N Fleishman, Igor Khaliulin, Marco Meloni, Gianni D Angelini, M-Saadeh Suleiman
Cardioprotective efficacy of remote ischemic preconditioning (RIPC) remains controversial. Experimental studies investigating RIPC have largely monitored cardiovascular changes during index ischemia and reperfusion with little work investigating changes during RIPC application. This work aims to identify cardiovascular changes associated with autonomic nervous system (ANS) activity during RIPC and prior to index ischemia. RIPC was induced in anesthetized male C57/Bl6 mice by four cycles of 5 min of hindlimb ischemia using inflated cuff (200 mmHg) followed by 5 min reperfusion...
February 2017: Physiological Reports
https://www.readbyqxmd.com/read/28188500/isolated-limb-perfusion-for-melanoma-is-safe-and-effective-in-elderly-patients
#11
Max F Madu, Marion M Deken, Jos A van der Hage, Katarzyna Jóźwiak, Michel W J M Wouters, Alexander C J van Akkooi
BACKGROUND: Data on isolated limb perfusion (ILP) in elderly melanoma patients are scarce. We aimed to evaluate the efficacy and safety of ILP in our institutional cohort of melanoma patients. METHODS: We performed retrospective analysis of stage IIIB/C melanoma patients who underwent ILP for melanoma in-transit metastases (ITMs) in our institution between 2000 and 2016. Normothermic ILP was performed with either melphalan or melphalan and tumor necrosis factor...
February 10, 2017: Annals of Surgical Oncology
https://www.readbyqxmd.com/read/28174542/p2x-receptors-inhibit-nacl-absorption-in-mtal-independently-of-nitric-oxide
#12
Samuel L Svendsen, Søren Isidor, Helle A Praetorius, Jens Leipziger
Activation of basolateral P2X receptors markedly reduces NaCl absorption in mouse medullary thick ascending limb (mTAL). Here we tested the role of nitric oxide (NO) in the ATP-mediated (P2X) transport inhibition. We used isolated, perfused mTALs from mice to electrically measure NaCl absorption. By microelectrodes we determined the transepithelial voltage (Vte) and transepithelial resistance (Rte). Via these two parameters, we calculated the equivalent short circuit current, I'sc as a measure of the transepithelial Na(+) absorption...
2017: Frontiers in Physiology
https://www.readbyqxmd.com/read/28131184/confined-anterior-cerebral-artery-infarction-manifesting-as-isolated-unilateral-axial-weakness
#13
Asaf Honig, Ruth Eliahou, Eitan Auriel
We describe isolated unilateral axial weakness in three patients eventually diagnosed with anterior cerebral artery infarction (ACAI), a new clinical observation. Files of three ACAI patients (2 females, 1 male, ages 55-80) were retrospectively reviewed. All three presented to the ED with sudden unsteadiness. On initial neurological examination, all three patients manifested unilateral truncal deviation to the side contralateral to the weakness, even while seated. There was significant unilateral hypotonia due to substantial paravertebral weakness...
February 15, 2017: Journal of the Neurological Sciences
https://www.readbyqxmd.com/read/28129609/treatment-of-intimal-sarcoma-of-peripheral-veins
#14
Javier López-Gómez, Erwin R Flores-Vázquez, Ma Alejandra Salazar-Álvarez, Rodrigo Y Adame, Dorian Y Garcia-Ortega, Mario Cuellar-Hübbe
INTRODUCTION: Intimal sarcoma is an extremely rare group of undifferentiated pleomorphic sarcoma arising from the intimal layer of vessels accounting for only 1% of all sarcomas, intimal sarcoma of large veins are even less common. CASES PRESENTATION: We present two cases of intima sarcoma, one originated form the basilar vein and the other from the cephalic vein, the first one was treated with surgery and postoperative chemotherapy followed by Radiotherapy (RT), the second case was treated with isolated limb perfusion followed by marginal resection and RT...
2017: International Journal of Surgery Case Reports
https://www.readbyqxmd.com/read/27987195/new-does-not-always-mean-better-isolated-limb-perfusion-still-has-a-role-in-the-management-of-in-transit-melanoma-metastases
#15
Igor Puzanov, Joseph Skitzki
No abstract text is available yet for this article.
December 15, 2016: Oncology (Williston Park, NY)
https://www.readbyqxmd.com/read/27987194/isolated-limb-perfusion-for-stage-iii-melanoma-does-it-still-have-a-role-in-the-present-era-of-effective-systemic-therapy
#16
REVIEW
Dirk J Grünhagen, Cornelis Verhoef
The management of advanced-stage melanoma has changed dramatically with the introduction of systemic targeted therapy and immunotherapy. Patients with stage IV melanoma currently benefit from agents that are extremely effective, especially when compared with classic chemotherapeutic agents. The field is still evolving, and these newer agents are now used in patients with stage III disease, in the setting of adjuvant trials after resection of the disease bulk. Patients with bulky and numerous in-transit metastases form a very distinct subset of melanoma patients...
December 15, 2016: Oncology (Williston Park, NY)
https://www.readbyqxmd.com/read/27924355/avp-dynamically-increases-paracellular-na-permeability-and-transcellular-nacl-transport-in-the-medullary-thick-ascending-limb-of-henle-s-loop
#17
REVIEW
Nina Himmerkus, Allein Plain, Rita D Marques, Svenja R Sonntag, Alexander Paliege, Jens Leipziger, Markus Bleich
The medullary thick ascending limb of Henle's loop (mTAL) is crucial for urine-concentrating ability of the kidney. It is water tight and able to dilute the luminal fluid by active transcellular NaCl transport, fueling the counter current mechanism by increasing interstitial osmolality. While chloride is exclusively transported transcellularly, approx. 50% of sodium transport occurs via the paracellular route, driven by the lumen-positive transepithelial potential. Antidiuretic hormone (AVP) is known to increase active NaCl transport to support collecting duct water reabsorption...
January 2017: Pflügers Archiv: European Journal of Physiology
https://www.readbyqxmd.com/read/27890347/isolated-limb-perfusion-for-the-management-limb-threatening-soft-tissue-sarcomas-the-role-of-histological-type-on-clinical-outcomes
#18
M Rastrelli, S Mocellin, R Stramare, A Brunello, M Maruzzo, U Basso, G Scarzello, M S Buzzaccarini, P Pilati, L M Saadeh, S P Del Fiore, A Tosi, C Montesco, L G Campana, S Tropea, C R Rossi
BACKGROUND: Hyperthermic isolated limb perfusion (HILP) is an effective neoadjuvant treatment to avoid amputation in patients with locally advanced extremity soft tissue sarcomas (STS). We aimed to investigate whether STS histological type plays a role in predicting clinical outcomes. METHODS: This study reports a retrospective analysis of 125 patients with limb threatening STS (liposarcoma, n = 41; malignant peripheral nerve sheath tumor, n = 20; leiomyosarcoma, n = 20; miscellany, n = 44), who underwent HILP from 1990 through 2015 at our institution...
February 2017: European Journal of Surgical Oncology
https://www.readbyqxmd.com/read/27859767/mechanisms-for-the-control-of-local-tissue-blood-flow-during-thermal-interventions-influence-of-temperature-dependent-atp-release-from-human-blood-and-endothelial-cells
#19
Kameljit K Kalsi, Scott T Chiesa, Steven J Trangmar, Leena Ali, Makrand D Lotlikar, José González-Alonso
What is the central question of this study? Skin and muscle blood flow increases with heating and decreases with cooling, but the temperature-sensitive mechanisms underlying these responses are not fully elucidated. What is the main finding and its importance? We found that local tissue hyperaemia was related to elevations in ATP release from erythrocytes. Increasing intravascular ATP augmented skin and tissue perfusion to levels equal or above thermal hyperaemia. ATP release from isolated erythrocytes was altered by heating and cooling...
February 1, 2017: Experimental Physiology
https://www.readbyqxmd.com/read/27832863/endothelial-progenitor-cells-from-human-fetal-aorta-cure-diabetic-foot-in-a-rat-model
#20
Wan-Ni Zhao, Shi-Qing Xu, Jian-Feng Liang, Liang Peng, Hong-Lin Liu, Zai Wang, Qing Fang, Meng Wang, Wei-Qin Yin, Wen-Jian Zhang, Jin-Ning Lou
OBJECTIVE: Recent evidence has suggested that circulating endothelial progenitor cells (EPCs) can repair the arterial endothelium during vascular injury. However, a reliable source of human EPCs is needed for therapeutic applications. In this study, we isolated human fetal aorta (HFA)-derived EPCs and analyzed the capacity of EPCs to differentiate into endothelial cells. In addition, because microvascular dysfunction is considered to be the major cause of diabetic foot (DF), we investigated whether transplantation of HFA-derived EPCs could treat DF in a rat model...
December 2016: Metabolism: Clinical and Experimental
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