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Ullah W, McLean A, Tayebjee MH, Gupta D, Ginks MR, Haywood GA, O'Neill M, Lambiase PD, Earley MJ, Schilling RJ. Randomized trial comparing pulmonary vein isolation using the SmartTouch catheter with or without real-time contact force data. Heart Rhythm 2016; 13:1761-7. [PMID: 27173976 DOI: 10.1016/j.hrthm.2016.05.011] [Citation(s) in RCA: 119] [Impact Index Per Article: 14.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/10/2016] [Indexed: 12/13/2022]
Abstract
BACKGROUND Contact force (CF) information may improve the safety and efficacy of ablation for paroxysmal atrial fibrillation (PAF). OBJECTIVE The purpose of this study was to assess the impact of CF data on ablation for PAF. METHODS Patients undergoing first-time PAF ablation were randomized at 7 UK centers to ablation with (CF-on) or without (CF-off) CF data available to the operator, using the same ablation catheter and mapping system. An ablation CF of 5-40g was targeted. Pulmonary vein (PV) reconnection was assessed with adenosine at 60 minutes. Follow-up for arrhythmia recurrence was for 1 year with 7-day Holter recordings at 6 and 12 months. RESULTS One hundred seventeen patients were studied (59 CF-on, 58 CF-off). In the CF-on group, a reduction in acute PV reconnection rates (22% vs 32%, P = .03) but no significant difference in 1-year success rates off antiarrhythmic drugs (49% vs 52%, P = .9) was observed. There was no difference in major complication rates: 2 of 59 (3%) CF-on, 3 of 58 (5%) CF-off (P = .7). Procedural and fluoroscopy times were not significantly different (P>.5). Overall mean CFs per ablation were not different between groups (13.4 [9.1-19.6]g CF-on, 13.4 [7.4-22.4]g CF-off, P = .5), but a greater proportion of readings in the CF-on group were in the target range (80% vs 68%, P<.001). CONCLUSION This randomized multicenter study demonstrated that CF data availability was associated with reduced acute PV reconnection but not improved 1-year success rates, procedural and fluoroscopy times, or complication rates. There was a reduction in extremes of CF, above and below the study target range, suggesting greater CF control during ablation.
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Kingston D, Bopf D, Dhanjee U, McLean A. Evaluation of a two rubber band technique for finger ring removal. Ann R Coll Surg Engl 2016; 98:300-2. [PMID: 27023635 PMCID: PMC5227037 DOI: 10.1308/rcsann.2016.0119] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/30/2016] [Indexed: 11/22/2022] Open
Abstract
INTRODUCTION Rings are required to be removed from a finger in many clinical situations. Rings that are difficult to remove is a problem encountered frequently. Many techniques have been reported for this problem. This study looks at the effectiveness of a single technique for removing difficult rings from fingers. METHODS A two rubber band technique was used in this study of 69 difficult to remove rings. Success of the technique and time to removal were recorded. RESULTS Difficult rings were removed in 92.5% of cases, in a mean time of 10.7 seconds. No fingers or rings suffered damage during the study. CONCLUSIONS This two rubber band technique is a rapid, safe and effective method for removing rings that cannot be removed easily.
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Ullah W, McLean A, Tayebjee M, Gupta D, Ginks M, Haywood G, O’Neill M, Lambiase P, Earley M, Schilling R, Smart AF. 51 Contact Force Data Availability Reduces Acute Pulmonary Vein Reconnection: Early Results from the Smart AF Trial: Abstract 51 Table 1. BRITISH HEART JOURNAL 2015. [DOI: 10.1136/heartjnl-2015-308066.51] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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Payne E, Boot M, Starling M, Henshall C, McLean A, Bennett P, McGreevy P. Evidence of horsemanship and dogmanship and their application in veterinary contexts. Vet J 2015; 204:247-54. [PMID: 25959129 DOI: 10.1016/j.tvjl.2015.04.004] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2014] [Revised: 04/02/2015] [Accepted: 04/02/2015] [Indexed: 11/29/2022]
Abstract
This review collates peer-reviewed evidence for desirable attributes for those who work with dogs and horses. It is written with a particular focus on the veterinary profession. Although veterinarians and veterinary nurses (VNs) occupy variable roles when interacting with their patients, several behavioural attributes emerge as helpful across the range of such roles. In light of recent research on the value of considering animals' arousal and affective state as predictors of behaviour and welfare, best practice in human-horse and human-dog-interactions is outlined. The attributes of affiliation, safety and positive reinforcement seem to contribute greatly to the development and maintenance of moderate arousal and positive affect in animals. The information in this review article is offered in an attempt to show why veterinary professionals with good horsemanship are likely to remain safe, and to introduce the concept of dogmanship. In the light of the peer-reviewed evidence assembled here, it is arguable that veterinary teams, comprising both veterinarians and VNs, can become scholars in these areas. The benefits of this approach for practitioner safety, animal welfare and client satisfaction are likely to be significant.
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Paterson C, Thomson M, Caldwell B, Porteous S, McLean A, Park G, Messow C. PO-134: Dose related efficacy of LMS-611 in Radiotherapy Induced Xerostomia ñ an ex vivo study. Radiother Oncol 2015. [DOI: 10.1016/s0167-8140(15)34894-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Ullah W, McLean A, Hunter RJ, Baker V, Richmond L, Cantor EJ, Dhinoja MB, Sporton S, Earley MJ, Schilling RJ. Randomized trial comparing robotic to manual ablation for atrial fibrillation. Heart Rhythm 2014; 11:1862-9. [DOI: 10.1016/j.hrthm.2014.06.026] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/15/2014] [Indexed: 11/30/2022]
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Ullah W, McLean A, Tayebjee M, Gupta D, Ginks M, Haywood G, O'Neil M, Lambiase P, Schilling R. 72 * Contact force timing reduces pulmonary vein reconnection, early results from the smart AF trial. Europace 2014. [DOI: 10.1093/europace/euu243.6] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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Hunter RJ, Lee G, Ullah W, Finlay M, Lovell M, Baker V, McLean A, Dhinoja M, Earley MJ, Sporton S, Schilling RJ. 30 * Use of a contact force sensing catheter with advanced catheter location significantly reduces fluoroscopy time and radiation dose in catheter ablation of atrial fibrillation. Europace 2014. [DOI: 10.1093/europace/euu238.12] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Ullah W, Hunter RJ, Haldar S, McLean A, Dhinoja M, Sporton S, Earley MJ, Lorgat F, Wong T, Schilling RJ. Comparison of robotic and manual persistent AF ablation using catheter contact force sensing: an international multicenter registry study. PACING AND CLINICAL ELECTROPHYSIOLOGY: PACE 2014; 37:1427-35. [PMID: 25220575 DOI: 10.1111/pace.12501] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/14/2014] [Revised: 06/27/2014] [Accepted: 07/09/2014] [Indexed: 11/29/2022]
Abstract
BACKGROUND Catheter-based contact force sensing (CFS) technology gives detailed information regarding contact between the catheter tip and myocardium. This may result in more effective ablation procedures. The primary objective of this study was comparison of remote robotic navigation (RRN) and Manual CFS ablation. The secondary objective was to compare CFS with non-CFS ablation for both navigation modes. METHODS Prospective registries of consecutive cases undergoing their first ablation for persistent atrial fibrillation (AF) from six hospitals in the United Kingdom and South Africa were analyzed: 50 Manual/CFS and 50 RRN/CFS cases were included. Historical control non-CFS ablation patients were matched by propensity score, giving a total 200 patient cohort. RESULTS RRN/CFS was associated with improved single procedure 1-year success rates (64% vs 36%, P = 0.01) and shorter fluoroscopy times (41% reduction, P < 0.0005) than Manual/CFS ablation, without any difference in procedure times (P = 0.8). The mean contact force was higher in RRN/CFS than Manual/CFS cases (16 [15-18 g] vs 13 [12-15 g], respectively, P = 0.003). Compared with non-CFS historical controls, CFS cases had higher 1-year success rates for RRN (64% vs 36%, P = 0.01), but not Manual ablation (36% vs 38%, P = 1). Procedure times were reduced for CFS cases (20%, P < 0.005 both navigation modes), as were fluoroscopy times (Manual: 43%, RRN 83%, P < 0.005 for both). There were no differences in rates of major or minor complications for either comparison (P > 0.5). CONCLUSIONS A combination of RRN and CFS is associated with improved success rates at 1 year and fluoroscopy times for persistent AF ablation, compared with Manual ablation and non-CFS RRN ablation.
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McLean A, Chan K, Roufosse C, Cook T, Brookes P, Goodall D, Willicombe M, Galliford J, Taube D. 5-Year Outcomes of a Randomized Prospective Trial of Tacrolimus Maintenance Monotherapy After Alemtuzumab Induction and Early Steroid Withdrawal in Kidney Transplantation: Rejection, HLA Antibody Formation, and Recurrent Disease. Transplantation 2014. [DOI: 10.1097/00007890-201407151-00351] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Willicombe M, Brookes P, Blow M, Eva S, McLean A, Taube D. Immunogenicity of DQ7 HLA Antigens in Renal Transplantation. Transplantation 2014. [DOI: 10.1097/00007890-201407151-00033] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Curley C, Hill GR, McLean A, Kennedy GA. Immunotherapy following relapse of acute leukaemia after T-cell-replete allogeneic peripheral blood progenitor cell transplantation: importance of new onset chronic graft-versus-host disease. Int J Lab Hematol 2013; 36:197-204. [PMID: 24112249 DOI: 10.1111/ijlh.12153] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2013] [Accepted: 08/08/2013] [Indexed: 12/13/2022]
Abstract
INTRODUCTION To further define the relative impact of immunotherapy and subsequent development of graft-versus-host disease (GVHD) on survival in patients with relapsed acute leukaemia postallogeneic hematopoietic stem cell transplant (SCT), we performed a single-centre retrospective analysis of 32 actively treated patients between 2003 and 2011. METHODS A total of 13 patients were identified who were treated actively with cessation of immunosuppression ± Fludarabine, Cytarabine, G-CSF (FLAG) induction, but no donor leucocyte infusion (DLI) (non-DLI group) and 19 patients received the same step-wise therapy plus G-CSF mobilized DLI (G-DLI group). RESULTS Groups were not statistically different with regards to baseline characteristics; however, the G-DLI group contained more sibling donors as opposed to unrelated donors than the non-DLI group. With a median follow-up of 47 months, the median overall survival (OS) of the non-DLI and G-DLI groups was not statistically different (8 months vs. 9 months, respectively, P = 0.5). Survival at 3 years was <10% in both groups. Univariate analysis identified response to FLAG, and new onset chronic GVHD as the only factors associated with improved OS. CONCLUSION Second donor stem cell infusions are unwarranted in the treatment of relapse after allogeneic SCT and therapeutic strategies should focus on cytoreduction followed by immune modulation with the aim of invoking chronic GVHD.
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Wincup C, McGuinness D, McLean A, Lightstone L. AB0648 The effects of end stage renal failure on lupus disease activity. Ann Rheum Dis 2013. [DOI: 10.1136/annrheumdis-2012-eular.648] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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Oh B, Kimble B, Costa DSJ, Davis E, McLean A, Orme K, Beith J. Acupuncture for treatment of arthralgia secondary to aromatase inhibitor therapy in women with early breast cancer: pilot study. Acupunct Med 2013; 31:264-71. [PMID: 23722951 DOI: 10.1136/acupmed-2012-010309] [Citation(s) in RCA: 53] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
BACKGROUND Aromatase inhibitors (AIs) are recommended as adjuvant hormone treatment for postmenopausal women with early breast cancer. A substantial proportion of women taking AIs experience joint pain and stiffness. Studies have suggested that acupuncture may be effective in treating joint pain. OBJECTIVE A pilot study was conducted to evaluate the feasibility, safety and efficacy of using acupuncture to treat AI-induced arthralgia. METHODS A total of 32 patients were randomised to receive either sham or real electroacupuncture (EA) twice weekly for 6 weeks. Outcomes of joint pain, stiffness and physical function were measured with the Western Ontario and McMaster Universities Osteoarthritis Index (WOMAC), overall pain severity and interference with the BPI-SF and quality of life (QOL) with the Functional Assessment of Cancer Therapy-General (FACT-G) instrument. Hand strength was assessed by a grip test, and a serum marker of inflammation (C reactive protein (CRP)) was also measured. All assessments were performed at baseline, 6 weeks and 12 weeks, except for blood samples at baseline and 6 weeks only. RESULTS No serious adverse events were reported during or after acupuncture treatments. There were no significant differences in outcome measures. However, positive trends were observed in stiffness and physical function at week 12 in favour of real EA. CONCLUSIONS Findings suggest that acupuncture is feasible and safe in patients with breast cancer with joint pain caused by AI. A larger study with adequately powered to confirm these results and detect clinically relevant effects is needed.
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Kohlova M, Ribeiro S, do Sameiro-Faria M, Rocha-Pereira P, Fernandes J, Reis F, Miranda V, Quintanilha A, Bronze-da-Rocha E, Belo L, Costa E, Santos-Silva A, Arias-Guillen M, Maduell F, Masso E, Fontsere N, Carrera M, Ojeda R, Vera M, Cases A, Campistol J, Di Benedetto A, Ciotola A, Stuard S, Marcelli D, Canaud B, Kim MJ, Lee SW, Kweon SH, Song JH, Rosales LM, Abbas S, Zhu F, Flores C, Carter M, Apruzzese R, Kotanko P, Levin NW, Mann H, Seyffart G, Ensminger A, Goksel T, Stiller S, Zaluska W, Kotlinska-Hasiec E, Rzecki Z, Rybojad B, Zaluska A, Da'browski W, Ponce P, Chung T, Kreuzberg U, Pedrini L, Francois K, Wissing KM, Jacobs R, Boone D, Jacobs K, Tielemans C, Agar BU, Culleton BF, Fluck R, Leypoldt JK, Lentini P, Zanoli L, Granata A, Contestabile A, Basso A, Berlingo G, Pellanda V, de Cal M, Clementi A, Insalaco M, Dell'Aquila R, Panichi V, Rosati A, Casani A, Conti P, Capitanini A, Migliori M, Scatena A, Giusti R, Malagnino E, Betti G, Bernabini G, Gabbrielli C, Rollo S, Caiani D, Pizzarelli F, Cantaluppi V, Medica D, Quercia AD, Gai M, Leonardi G, Anania P, Guarena C, Giovinazzo G, Ferraresi M, Merlo I, Deambrosis I, Giaretta F, Biancone L, Segoloni GP, Surace A, Pieri M, Rovatti P, Steckiph D, Mambelli E, Mancini E, Santoro A, Devine E, Krieter D, Lemke HD, Frasca GM, Sagripanti S, Boggi R, Del Rosso G, Gattiani A, Mosconi G, Oliva S, Rigotti A, Sopranzi F, Tetta C, Cavallari C, Fonsato V, Maffei S, Collino F, Camussi G, Ksiazek A, Waniewski J, Debowska M, Wojcik-Zaluska A, Zaluska W, Maduell F, Wieneke P, Arias-Guillen M, Fontsere N, Vera M, Ojeda R, Carrera M, Cases A, Campistol J, Bunia J, Ziebig R, Wolf H, Ahrenholz P, Donadio C, Kanaki A, Sami N, Tognotti D, Goubella A, Gankam-Kengne F, Baudoux T, Fagnoul D, Husson C, Ghisdal L, Broeders NE, Nortier JL, von Albertini B, Mathieu C, Cherpillod A, Boesch A, Romo M, Zhou J, Tang L, Kong D, Zhang L, Shi S, Lv Y, Chen X, Sakurai K, Saito T, Ishii D, Fievet P, Delpierre A, Faucher J, Ghazali A, Soltani ON, Lefevre M, Stephan R, Demontis R, Hougardy JM, Husson C, Gastaldello K, Nortier JL, Mishkin GJ, McLean A, Palant C, Fievet P, Faucher J, Delpierre A, Ghazali A, Demontis R, Glorieux G, Hulko M, Speidel R, Brodbeck K, Krause B, Vanholder R, Rovatti P, Grandi E, Stefani D, Ruffo M, Solem K, Olde B, Santoro A, Sterner G, Lee YK, Lee HW, Choi KH, Kim BS, Sakurai K, Saito T, Wakabayasi Y, Djuric P, Bulatovic A, Jankovic A, Tosic J, Popovic J, Djuric Z, Bajcetic S, Dimkovic N, Golubev RV, Soltysiak J, Malke A, Warzywoda A, Blumczynski A, Silska-Dittmar M, Musielak A, Ostalska-Nowicka D, Zachwieja J, Ashcroft R, Williams G, Brown C, Chess J, Mikhail A, Steckiph D, Bertucci A, Petrarulo M, Baldini C, Calabrese G, Gonella M. Extracorporeal dialysis: techniques and adequacy II. Nephrol Dial Transplant 2013. [DOI: 10.1093/ndt/gft144] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Yastrebov K, McLean A. Establishing a critical care echocardiography laboratory. Crit Care 2013. [PMCID: PMC3642551 DOI: 10.1186/cc12122] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
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Smith GH, McEachan JE, McLean A, Huntley JS. Prevention of knot slippage with the use of cyanoacrylate glue: a mechanical study. J Orthop Surg (Hong Kong) 2013; 21:65-7. [PMID: 23629991 DOI: 10.1177/230949901302100117] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
PURPOSE To assess the effect of cyanoacrylate glue on knot slippage and strength in vitro. METHODS Ethibond 3/0 was tested using a tensile tester. A single drop of cyanoacrylate glue was applied to the knots. Seven knot configurations (10 samples each) were tested: (1) a surgeon's knot (S) plus 4 square throws (+4) without glue (control group), (2) S plus one square throw (+1) without glue, (3) S+1 with glue, (4) S with glue, (5) S+1 wet posttie without glue, (6) S+1 wet pre-tie without glue, and (7) S+1 wet pre-tie with glue. Wet sutures were immersed in normal saline for 24 hours prior to knot tying. Wet pre- and post-tie sutures were immersed for one minute prior to knot tying and tensile testing, respectively. Outcome measures were the mode of failure (knot slippage or suture snapping) and the ultimate tensile strength. RESULTS All knots without glue failed owing to knot slippage, except for the controls, whereas all knots with glue failed owing to suture snapping. The ultimate tensile strength was significantly higher in knots with glue and controls than in knots without glue. The ultimate tensile strength did not differ significantly between S+4 without glue and S with glue (p=0.48), indicating that glue could reinforce knots and reduce the number of throws needed. Wet suture is protective against failure (p<0.01). CONCLUSION Cyanocrylate glue may have clinical applications for flexor tendon repairs for which a reduced knot size is advantageous.
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Armstrong-James D, Teo I, Herbst S, Petrou M, Shiu KY, McLean A, Taube D, Dorling A, Shaunak S. Renal allograft recipients fail to increase interferon-γ during invasive fungal diseases. Am J Transplant 2012; 12:3437-40. [PMID: 22974244 DOI: 10.1111/j.1600-6143.2012.04254.x] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
Invasive fungal diseases are a major cause of death in renal allograft recipients. We previously reported that adjunctive recombinant human interferon-γ therapy has clinical utility for invasive fungal diseases after renal transplantation. We have now developed a rapid peripheral blood-based quantitative real-time PCR assay that enables accurate profiling of cytokine imbalances. Our preliminary studies in renal transplant patients with invasive fungal diseases suggest that they fail to mount an adequate interferon-γ response to the fungal infection. In addition, they have reduced IL-10 and increased TNF-α when compared to stable renal transplant patients. These preliminary cytokine profiling-based observations provide a possible explanation for the therapeutic benefit of adjunctive human interferon-γ therapy in renal allograft recipients with invasive fungal diseases.
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Surla V, Jaworski M, Soukhanovskii V, Gray T, Kaita R, Kallman J, Kugel H, McLean A, Ruzic D, Scotti F. Characterization of transient particle loads during lithium experiments on the National Spherical Torus Experiment. FUSION ENGINEERING AND DESIGN 2012. [DOI: 10.1016/j.fusengdes.2012.05.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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Ono M, Bell M, Kaita R, Kugel H, Ahn JW, Allain J, Battaglia D, Bell R, Canik J, Ding S, Gerhardt S, Gray T, Guttenfelder W, Hosea J, Jaworski M, Kallman J, Kaye S, LeBlanc B, Maingi R, Mansfield D, McLean A, Menard J, Muller D, Nelson B, Nygren R, Paul S, Raman R, Ren Y, Ryan P, Sabbagh S, Scotti F, Skinner C, Soukhanovskii V, Surla V, Taylor C, Timberlake J, Yuh H, Zakharov L. Recent progress of NSTX lithium program and opportunities for magnetic fusion research. FUSION ENGINEERING AND DESIGN 2012. [DOI: 10.1016/j.fusengdes.2011.10.011] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
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Kugel H, Allain J, Bell M, Bell R, Diallo A, Ellis R, Gerhardt S, Heim B, Jaworski M, Kaita R, Kallman J, Kaye S, LeBlanc B, Maingi R, McLean A, Menard J, Mueller D, Nygren R, Ono M, Paul S, Raman R, Roquemore A, Sabbagh S, Schneider H, Skinner C, Soukhanovskii V, Taylor C, Timberlake J, Viola M, Zakharov L. NSTX plasma operation with a Liquid Lithium Divertor. FUSION ENGINEERING AND DESIGN 2012. [DOI: 10.1016/j.fusengdes.2011.07.010] [Citation(s) in RCA: 60] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Perkins RJ, Hosea JC, Kramer GJ, Ahn JW, Bell RE, Diallo A, Gerhardt S, Gray TK, Green DL, Jaeger EF, Jaworski MA, LeBlanc BP, McLean A, Maingi R, Phillips CK, Roquemore L, Ryan PM, Sabbagh S, Taylor G, Wilson JR. High-harmonic fast-wave power flow along magnetic field lines in the scrape-off layer of NSTX. PHYSICAL REVIEW LETTERS 2012; 109:045001. [PMID: 23006093 DOI: 10.1103/physrevlett.109.045001] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/23/2012] [Indexed: 06/01/2023]
Abstract
A significant fraction of high-harmonic fast-wave (HHFW) power applied to NSTX can be lost to the scrape-off layer (SOL) and deposited in bright and hot spirals on the divertor rather than in the core plasma. We show that the HHFW power flows to these spirals along magnetic field lines passing through the SOL in front of the antenna, implying that the HHFW power couples across the entire width of the SOL rather than mostly at the antenna face. This result will help guide future efforts to understand and minimize these edge losses in order to maximize fast-wave heating and current drive.
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Snow J, Pettypiece C, McAdam T, McLean A, Stroman P, Goodale M, Culham J. Bringing the real world into the fMRI scanner: Robust release from adaptation for 2D pictures but not actual 3D objects. J Vis 2011. [DOI: 10.1167/11.11.71] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
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Chew MS, Hawthorne WJ, Bendall J, Whereat S, Huang S, Ting I, Simond D, McLean A. No beneficial effects of levosimendan in acute porcine endotoxaemia. Acta Anaesthesiol Scand 2011; 55:851-61. [PMID: 21574964 DOI: 10.1111/j.1399-6576.2011.02436.x] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
BACKGROUND Levosimendan has been proposed as an attractive alternative to adrenergic agents for the treatment of sepsis-induced heart failure and haemodynamic derangements. Its use in this setting is, however, still not well investigated. The aim of this study was to test the hypothesis that levosimendan is able to attenuate endotoxin-induced pulmonary hypertension and improve myocardial function in a porcine model. The secondary aims were to investigate its effect on renal and liver function, and the plasma cytokine response. METHODS Endotoxaemia was induced in 18 pigs, randomized to placebo and Levosimendan groups. All pigs were fluid resuscitated and Noradrenalin infusion was given according to a predefined protocol. Systemic haemodynamics and myocardial function were measured using pulmonary artery catheterization and transthoracic echocardiography. Renal and liver function tests and cytokine concentrations were measured in plasma. RESULTS Levosimendan did not attenuate endotoxin-induced pulmonary hypertension and did not improve myocardial function. There were no differences in renal or liver function. Increases in arterial lactate and decreases in base excess were observed in the Levosimendan group, as well as significant increases in plasma interleukin (IL)-6 and IL-8. CONCLUSIONS Contrary to our hypothesis, levosimendan given in conjunction with a protocolized vasopressor and fluid resuscitation did not improve cardiac, renal or liver function in this model of acute porcine endotoxaemia. Hyperlactataemia, acidosis and increases in plasma pro-inflammatory cytokines were observed, the mechanisms and implications of which remain unclear.
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Beith JM, Segelov E, Orme K, McLean A, Oh B. A randomized trial assessing the use of electro-acupuncture for aromatase inhibitor-induced arthralgia. J Clin Oncol 2011. [DOI: 10.1200/jco.2011.29.15_suppl.tps120] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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