1
|
Richards T, Miles LF, Clevenger B, Keegan A, Abeysiri S, Rao Baikady R, Besser MW, Browne JP, Klein AA, Macdougall IC, Murphy GJ, Anker SD, Dahly D, Besser M, Browne J, Clevenger B, Kegan A, Klein A, Miles L, MacDougall I, Baikady RR, Dahly D, Bradbury A, Richards T, Burley T, Van Loen S, Anker S, Klein A, MacDougall I, Murphy G, Besser M, Unsworth I, Clayton T, Collier T, Potter K, Abeysiri S, Evans R, Knight R, Swinson R, Van Dyck L, Keidan J, Williamson L, Crook A, Pepper J, Dobson J, Newsome S, Godec T, Dodd M, Richards T, Van Dyck L, Evans R, Abeysiri S, Clevenger B, Butcher A, Swinson R, Collier T, Potter K, Anker S, Kelly J, Morris S, Browne J, Keidan J, Grocott M, Chau M, Knight R, Collier T, Baikady RR, Black E, Lawrence H, Kouthra M, Horner K, Jhanji S, Todman E, Keon‐Cohen Z, Rooms M, Tomlinson J, Bailes I, Walker S, Pirie K, Gerstman M, Kasivisvanathan R, Uren S, Magee D, Eeles A, Anker R, McCanny J, O'Mahony M, Reynolds T, Batley S, Hegarty A, Trundle S, Mazzola F, Tatham K, Balint A, Morrison B, Evans M, Pang CL, Smith L, Wilson C, Sjorin V, Khatri P, Wilson M, Parkinson D, Crosbie J, Dawas K, Smyth D, Bercades G, Ryu J, Reyes A, Martir G, Gallego L, Macklin A, Rocha M, Tam DK, Brealey DD, Dhesi J, Morrison C, Hardwick J, Partridge J, Braude P, Rogerson A, Jahangir N, Thomson C, Biswell L, Cross J, Pritchard F, Mohammed A, Wallace D, Galat MG, Okello J, Symes R, Leon J, Gibbs C, Sanghera S, Dennis A, Kibutu F, Fofie J, Bird S, Alli A, Jackson Y, Albuheissi S, Brain C, Shiridzinomwa C, Ralph C, Wroath B, Hammonds F, Adams B, Faulds J, Staddon S, Hughes T, Saha S, Finney C, Harris C, Mellis C, Johnson L, Riozzi P, Yarnold A, Buchanan F, Hopkins P, Greig L, Noble H, Edwards M, Grocott M, Plumb J, Harvie D, Dushianthan A, Wakatsuki M, Leggett S, Salmon K, Bolger C, Burnish R, Otto J, Rayat G, Golder K, Bartlett P, Bali S, Seaward L, Wadams B, Tyrell B, Collins H, Tantony N, Geale R, Wilson A, Ball D, Lindsey I, Barker D, Thyseen M, Chiam P, Hannaway C, Colling K, Messer C, Verma N, Nasseri M, Poonawala G, Sellars A, Mainali P, Hammond T, Hughes A, O'Hara D, McNeela F, Shillito L, Kotze A, Moriarty C, Wilson J, Davies S, Yates D, Carter J, Redman J, Ma S, Howard K, Redfearn H, Wilcock D, Lowe J, Alexander T, Jose J, Hornzee G, Akbar F, Rey S, Patel A, Coulson S, Saini R, Santipillai J, McCretton T, McCanny J, Chima K, Collins K, Pathmanathan B, Chattersingh A, McLeavy L, Al‐Saadi Z, Patel M, Skampardoni S, Chinnadurai R, Thomas V, Keen A, Pagett K, Keatley C, Howard J, Greenhalgh M, Jenkins S, Gidda R, Watts A, Breaton C, Parker J, Mallett S, James S, Penny L, Chan K, Reeves T, Catterall M, Williams S, Birch J, Hammerton K, Williamson N, Thomas A, Evans M, Mercer L, Horsfield G, Hughes C, Cupitt J, Stoddard E, McNamara H, Birt C, Hardy A, Dennis R, Butcher D, O'Sullivan S, Pope A, Elhanash S, Preston S, Officer H, Stoker A, Moss S, Walker A, Gipson A, Melville J, Bradley‐Potts J, McCormac R, Benson V, Melia K, Fielding J, Guest W, Ford S, Murdoch H, Beames S, Townshend P, Collins K, Glass J, Cartwright B, Altemimi B, Berresford L, Jones C, Kelliher L, de Silva S, Blightman K, Pendry K, Pinto L, Allard S, Taylor L, Chishti A, Scott J, O'Hare D, Lewis M, Hussain Z, Hallett K, Dermody S, Corbett C, Morby L, Hough M, Williams S, Williams P, Horton S, Ashcroft P, Homer A, Lang A, Dawson H, Harrison E, Thompson J, Hariharan V, Goss V, Ravi R, Butt G, Vertue M, Acheson A, Ng O, Bush D, Dickson E, Ward A, Morris S, Taylor A, Casey R, Wilson L, Vimalachandran D, Faulkner M, Jeffrey H, Gabrielle C, Martin S, Bracewell A, Ritzema J, Sproates D, Alexander‐Sefre F, Kubitzek C, Humphreys S, Curtis J, Oats P, Swann S, Holden A, Adam C, Flintoff L, Paoloni C, Bobruk K. The association between iron deficiency and outcomes: a secondary analysis of the intravenous iron therapy to treat iron deficiency anaemia in patients undergoing major abdominal surgery (PREVENTT) trial. Anaesthesia 2023; 78:320-329. [PMID: 36477695 PMCID: PMC10107684 DOI: 10.1111/anae.15926] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/10/2022] [Indexed: 12/13/2022]
Abstract
In the intravenous iron therapy to treat iron deficiency anaemia in patients undergoing major abdominal surgery (PREVENTT) trial, the use of intravenous iron did not reduce the need for blood transfusion or reduce patient complications or length of hospital stay. As part of the trial protocol, serum was collected at randomisation and on the day of surgery. These samples were analysed in a central laboratory for markers of iron deficiency. We performed a secondary analysis to explore the potential interactions between pre-operative markers of iron deficiency and intervention status on the trial outcome measures. Absolute iron deficiency was defined as ferritin <30 μg.l-1 ; functional iron deficiency as ferritin 30-100 μg.l-1 or transferrin saturation < 20%; and the remainder as non-iron deficient. Interactions were estimated using generalised linear models that included different subgroup indicators of baseline iron status. Co-primary endpoints were blood transfusion or death and number of blood transfusions, from randomisation to 30 days postoperatively. Secondary endpoints included peri-operative change in haemoglobin, postoperative complications and length of hospital stay. Most patients had iron deficiency (369/452 [82%]) at randomisation; one-third had absolute iron deficiency (144/452 [32%]) and half had functional iron deficiency (225/452 [50%]). The change in pre-operative haemoglobin with intravenous iron compared with placebo was greatest in patients with absolute iron deficiency, mean difference 8.9 g.l-1 , 95%CI 5.3-12.5; moderate in functional iron deficiency, mean difference 2.8 g.l-1 , 95%CI -0.1 to 5.7; and with little change seen in those patients who were non-iron deficient. Subgroup analyses did not suggest that intravenous iron compared with placebo reduced the likelihood of death or blood transfusion at 30 days differentially across subgroups according to baseline ferritin (p = 0.33 for interaction), transferrin saturation (p = 0.13) or in combination (p = 0.45), or for the number of blood transfusions (p = 0.06, 0.29, and 0.39, respectively). There was no beneficial effect of the use of intravenous iron compared with placebo, regardless of the metrics to diagnose iron deficiency, on postoperative complications or length of hospital stay.
Collapse
Affiliation(s)
- T Richards
- Division of Surgery, University of Western Australia, Perkins South Building, Fiona Stanley Hospital, Murdoch, Perth, WA, Australia.,Institute of Clinical Trials and Methodology and Division of Surgery, University College London, UK
| | - L F Miles
- Department of Critical Care, Melbourne Medical School, The University of Melbourne, VIC, Australia.,Department of Anaesthesia, Austin Health, Melbourne, VIC, Australia
| | - B Clevenger
- Department of Anaesthesia, Royal National Orthopaedic Hospital, Stanmore, UK
| | - A Keegan
- Department of Haematology, PathWest Laboratory Medicine, King Edward Memorial Hospital, Subiaco, WA, Australia
| | - S Abeysiri
- Division of Surgery, University of Western Australia, Perkins South Building, Fiona Stanley Hospital, Murdoch, Perth, WA, Australia
| | - R Rao Baikady
- Department of Anaesthesia, The Royal Marsden NHS Foundation Trust, London, UK
| | - M W Besser
- Department of Haematology, Addenbrooke's Hospital, Cambridge, UK
| | - J P Browne
- School of Public Health, University College Cork, Ireland
| | - A A Klein
- Department of Anaesthesia and Intensive Care, Royal Papworth Hospital, Cambridge, UK
| | - I C Macdougall
- Department of Renal Medicine, King's College Hospital, London, UK
| | - G J Murphy
- Department of Cardiovascular Sciences, University of Leicester, UK
| | - S D Anker
- Department of Cardiology, Berlin Institute of Health Centre for Regenerative Therapies; German Centre for Cardiovascular Research partner site Berlin; Charité Universitätsmedizin Berlin, Germany
| | - D Dahly
- School of Public Health, University College Cork, Ireland.,Health Research Board Clinical Research Facility, University College Cork, Ireland
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
2
|
Mias-Vigouroux C, Satge C, Rouvière C, Allard S, Carballido F, Bessou-Touya S, Duplan H. 619 Preventive effect of a dermocosmetic product containing an active ingredient complex, Cicahyalumide® and Rhealba® Oat plantlets extract, on stretch mark appearance. J Invest Dermatol 2022. [DOI: 10.1016/j.jid.2022.09.636] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
|
3
|
Dhesi AS, Wyatt JC, Estcourt LJ, McSporran W, Allard S. Insights from developing and evaluating the
NHS
blood choices transfusion app to support junior and middle‐grade doctor decision making against guidelines. Transfus Med 2022; 32:318-326. [DOI: 10.1111/tme.12872] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2021] [Revised: 09/03/2021] [Accepted: 04/24/2022] [Indexed: 11/29/2022]
Affiliation(s)
| | - Jeremy C. Wyatt
- Wessex Institute of Health Research University of Southampton Southampton UK
| | - Lise J. Estcourt
- Department of Blood NHS Blood and Transplant London UK
- Radcliffe Department of Medicine University of Oxford Oxford UK
| | - Wendy McSporran
- Department of Blood Transfusion Royal Marsden NHS Foundation Trust London UK
| | - Shubha Allard
- Department of Patient Blood Management NHS Blood and Transplant London UK
| |
Collapse
|
4
|
Luchian ML, Motoc AI, Lochy S, Belsack D, Boeckstaens S, Geers J, Tanaka K, Scheirlynck E, De Mey J, Allard S, Magne J, Roosens B, Weytjens C, Cosyns B, Droogmans S. Epicardial adipose tissue thickness in COVID-19 hospitalized patients: a tool for risk stratification. Eur Heart J Cardiovasc Imaging 2022. [DOI: 10.1093/ehjci/jeab289.444] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Abstract
Funding Acknowledgements
Type of funding sources: None.
Background
Coronavirus Disease 2019 (COVID-19) impacted public health systems,overwhelming the intensive care units(ICU)(1).Epicardial adipose tissue (EAT) thickness is a potential novel parameter, which can be assessed using standard computer tomography(CT) for the prediction of worse prognosis in COVID-19(2,3).
Purpose
We aimed to investigate the association of right ventricle (RV)-EAT thickness with the need for invasive mechanical ventilation,vasopressor support or ICU admission and in-hospital mortality in COVID-19.
Methods
We analyzed 310 consecutive hospitalized patients with confirmed COVID–19 by RT-PCR, between March and April 2020.EAT thickness was assessed during the acute setting of the disease using low dose non-contrast chest CT.Maximal EAT thickness was determined on axial image series at the level of the RV free wall perpendicular to the surface of the heart(Figure 1).Intra- and interobserver reproducibility for the RV-EAT thickness measurement was assessed in 20 random patients after two weeks,by the primary and a second investigator.Data included demographics,clinical evaluation,comorbidities,treatment and complications.Peak lactate dehydrogenase (LDH), neutrophil-lymphocyte ratio (NLR) and C-reactive protein (CRP) were defined as the highest level during hospitalization.The primary combined endpoint was ICU admission,invasive mechanical ventilation and vasopressor therapy.The secondary outcome was in-hospital mortality.
Results
Median age was 64 years (interquartile range:53 to 79 years,58.1% males).106(34.2%) patients reached the primary endpoint.In-hospital mortality rate was 19.5% (59 patients).Among patients with combined endpoint,the mortality rate was 35.8% (38 patients).RV-EAT thickness was higher in patients with combined endpoint (5.0 ±2.6 mm versus 4.3 ± 2.2 mm, p = 0.021).Additionally, patients with the composite endpoint had more diabetes mellitus (p = 0.028) and history of coronary artery disease (p = 0.020).Multivariable analysis showed that RV-EAT thickness predicted the primary endpoint,irrespective of risk factors and disease severity (p = 0.014,OR 1.157,95%CI 1.030-1.300; p = 0.031,OR 1.146,95%CI 1.013-1.298,respectively)(Figure 2).Moreover, peak CRP and peak LDH were associated with both endpoints(Figure 2).However, RV-EAT thickness was not predictive for mortality (p = 0.561, OR 1.039, 95%CI 0.913-1.183).
Intraobserver and interobserver reproducibility were good
0.88 (95%CI 0.66-0.95) and 0.86 (95%CI 0.65-0.94).
Conclusion
RV-EAT thickness,easily and rapidly assessed by standard low dose non-contrast chest CT was associated with higher incidence of ICU admission, need for mechanical ventilation and vasopressor support in hospitalized COVID-19 patients.Although no independent association between RV-EAT and in-hospital mortality was found, RV-EAT thickness may serve as surrogate marker of severity, before the rise of inflammatory biomarkers and may reflect inflammation changes within the myocardium in COVID-19. Abstract Figure 1. Examples of right ventricle ep Abstract Figure 2. Predictors of invasive mechani
Collapse
Affiliation(s)
- ML Luchian
- University Hospital (UZ) Brussels, Brussels, Belgium
| | - AI Motoc
- University Hospital (UZ) Brussels, Brussels, Belgium
| | - S Lochy
- University Hospital (UZ) Brussels, Brussels, Belgium
| | - D Belsack
- University Hospital (UZ) Brussels, Brussels, Belgium
| | - S Boeckstaens
- University Hospital (UZ) Brussels, Brussels, Belgium
| | - J Geers
- University Hospital (UZ) Brussels, Brussels, Belgium
| | - K Tanaka
- University Hospital (UZ) Brussels, Brussels, Belgium
| | - E Scheirlynck
- University Hospital (UZ) Brussels, Brussels, Belgium
| | - J De Mey
- University Hospital (UZ) Brussels, Brussels, Belgium
| | - S Allard
- University Hospital (UZ) Brussels, Brussels, Belgium
| | - J Magne
- Dupuytren University Hospital Centre Limoges, Limoges, France
| | - B Roosens
- University Hospital (UZ) Brussels, Brussels, Belgium
| | - C Weytjens
- University Hospital (UZ) Brussels, Brussels, Belgium
| | - B Cosyns
- University Hospital (UZ) Brussels, Brussels, Belgium
| | - S Droogmans
- University Hospital (UZ) Brussels, Brussels, Belgium
| |
Collapse
|
5
|
Allard S, Cort J, Howell C, Sherliker L, Miflin G, Toh CH. Transfusion 2024: A 5-year plan for clinical and laboratory transfusion in England. Transfus Med 2021; 31:400-408. [PMID: 34693582 DOI: 10.1111/tme.12827] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2021] [Revised: 09/30/2021] [Accepted: 10/10/2021] [Indexed: 01/28/2023]
Abstract
The Transfusion 2024 plan outlines key priorities for clinical and laboratory transfusion practice for safe patient care across the NHS for the next 5 years. It is based on the outcomes of a multi-professional symposium held in March 2019, organised by the National Blood Transfusion Committee (NBTC) and NHS Blood and Transplant (NHSBT), attended and supported by Professor Keith Willet and Dame Sue Hill on behalf of NHS England and Improvement. This best practice guidance contained within this publication will facilitate the necessary change in pathway design to meet the transfusion challenges and pressures for the restoration of a cohesive, and functional, healthcare system across the NHS following the COVID-19 pandemic.
Collapse
Affiliation(s)
- Shubha Allard
- Department of Medical, NHS Blood and Transplant, London, UK
| | - Jon Cort
- Department of Clinical, Chesterfield Royal Hospital NHS Foundation Trust, Derbyshire, UK
| | | | | | - Gail Miflin
- Department of Medical, NHS Blood and Transplant, Cambridge, UK
| | - Cheng Hock Toh
- Department of Clinical, University of Liverpool on behalf of NHSBT and NBTC, Liverpool, UK
| |
Collapse
|
6
|
Cole E, Weaver A, Gall L, West A, Nevin D, Tallach R, O'Neill B, Lahiri S, Allard S, Tai N, Davenport R, Green L, Brohi K. A Decade of Damage Control Resuscitation: New Transfusion Practice, New Survivors, New Directions. Ann Surg 2021; 273:1215-1220. [PMID: 31651535 DOI: 10.1097/sla.0000000000003657] [Citation(s) in RCA: 70] [Impact Index Per Article: 23.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
OBJECTIVE The aim of this study was to identify the effects of recent innovations in trauma major hemorrhage management on outcome and transfusion practice, and to determine the contemporary timings and patterns of death. BACKGROUND The last 10 years have seen a research-led change in hemorrhage management to damage control resuscitation (DCR), focused on the prevention and treatment of trauma-induced coagulopathy. METHODS A 10-year retrospective analysis of prospectively collected data of trauma patients who activated the Major Trauma Centre's major hemorrhage protocol (MHP) and received at least 1 unit of red blood cell transfusions (RBC). RESULTS A total of 1169 trauma patients activated the MHP and received at least 1 unit of RBC, with similar injury and admission physiology characteristics over the decade. Overall mortality declined from 45% in 2008 to 27% in 2017, whereas median RBC transfusion rates dropped from 12 to 4 units (massive transfusion rates from 68% to 24%). The proportion of deaths within 24 hours halved (33%-16%), principally with a fall in mortality between 3 and 24 hours (30%-6%). Survivors are now more likely to be discharged to their own home (57%-73%). Exsanguination is still the principal cause of early deaths, and the mortality associated with massive transfusion remains high (48%). Late deaths are now split between those due to traumatic brain injury (52%) and multiple organ dysfunction (45%). CONCLUSIONS There have been remarkable reductions in mortality after major trauma hemorrhage in recent years. Mortality rates continue to be high and there remain important opportunities for further improvements in these patients.
Collapse
Affiliation(s)
- Elaine Cole
- Blizard Institute, Queen Mary University of London, London, United Kingdom
| | - Anne Weaver
- Barts Health NHS Trust, London, United Kingdom
| | - Lewis Gall
- Blizard Institute, Queen Mary University of London, London, United Kingdom
| | - Anita West
- Barts Health NHS Trust, London, United Kingdom
| | | | | | | | | | | | - Nigel Tai
- Barts Health NHS Trust, London, United Kingdom
- Academic Departments of Military Surgery, Trauma and Anaesthesia, Royal Centre for Defence Medicine, Birmingham, United Kingdom
| | - Ross Davenport
- Blizard Institute, Queen Mary University of London, London, United Kingdom
- Barts Health NHS Trust, London, United Kingdom
| | - Laura Green
- Blizard Institute, Queen Mary University of London, London, United Kingdom
- Barts Health NHS Trust, London, United Kingdom
- NHS Blood and Transplant, London, United Kingdom
| | - Karim Brohi
- Blizard Institute, Queen Mary University of London, London, United Kingdom
- Barts Health NHS Trust, London, United Kingdom
| |
Collapse
|
7
|
Hill QA, Horan M, Charlton A, Bullock T, Massey E, Hill A, Allard S, Stanworth SJ. Developing the evidence base for the management of autoimmune haemolytic anaemia (AIHA): the UK experience. Br J Haematol 2020; 192:e54-e57. [PMID: 33216965 DOI: 10.1111/bjh.17217] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2020] [Accepted: 10/12/2020] [Indexed: 11/30/2022]
Affiliation(s)
| | | | | | | | | | | | | | - Simon J Stanworth
- NHS Blood and Transplant, Oxford, UK.,Oxford University Hospitals NHS Foundation Trust, Oxford, UK.,Radcliffe Department of Medicine and Oxford BRC Haematology Theme, University of Oxford, Oxford, UK
| |
Collapse
|
8
|
Charatsi AM, Garcia de la Fuente I, de la Barrière H, Allard S, Da Silva E, Borde P, Kulisic M, Klink B, Schlesser M. P047 Experience after 1 year of neonatal screening for cystic fibrosis in Luxembourg. J Cyst Fibros 2019. [DOI: 10.1016/s1569-1993(19)30342-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
|
9
|
Allard S, Verstraete A. Exploration of mephedrone metabolism by molecular networking in human urine samples. Toxicologie Analytique et Clinique 2019. [DOI: 10.1016/j.toxac.2019.03.053] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
|
10
|
Khan KS, Moore P, Wilson M, Hooper R, Allard S, Wrench I, Roberts T, McLoughlin C, Beresford L, Geoghegan J, Daniels J, Catling S, Clark VA, Ayuk P, Robson S, Gao-Smith F, Hogg M, Jackson L, Lanz D, Dodds J. A randomised controlled trial and economic evaluation of intraoperative cell salvage during caesarean section in women at risk of haemorrhage: the SALVO (cell SALVage in Obstetrics) trial. Health Technol Assess 2019; 22:1-88. [PMID: 29318985 DOI: 10.3310/hta22020] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022] Open
Abstract
BACKGROUND Caesarean section is associated with blood loss and maternal morbidity. Excessive blood loss requires transfusion of donor (allogeneic) blood, which is a finite resource. Cell salvage returns blood lost during surgery to the mother. It may avoid the need for donor blood transfusion, but reliable evidence of its effects is lacking. OBJECTIVES To determine if routine use of cell salvage during caesarean section in mothers at risk of haemorrhage reduces the rates of blood transfusion and postpartum maternal morbidity, and is cost-effective, in comparison with standard practice without routine salvage use. DESIGN Individually randomised controlled, multicentre trial with cost-effectiveness analysis. Treatment was not blinded. SETTING A total of 26 UK obstetric units. PARTICIPANTS Out of 3054 women recruited between June 2013 and April 2016, we randomly assigned 3028 women at risk of haemorrhage to cell salvage or routine care. Randomisation was stratified using random permuted blocks of variable sizes. Of these, 1672 had emergency and 1356 had elective caesareans. We excluded women for whom cell salvage or donor blood transfusion was contraindicated. INTERVENTIONS Cell salvage (intervention) versus routine care without salvage (control). In the intervention group, salvage was set up in 95.6% of the women and, of these, 50.8% had salvaged blood returned. In the control group, 3.9% had salvage deployed. MAIN OUTCOME MEASURES Primary - donor blood transfusion. Secondary - units of donor blood transfused, time to mobilisation, length of hospitalisation, mean fall in haemoglobin, fetomaternal haemorrhage (FMH) measured by Kleihauer-Betke test, and maternal fatigue. Analyses were adjusted for stratification factors and other factors that were believed to be prognostic a priori. Cost-effectiveness outcomes - costs of resources and service provision taking the UK NHS perspective. RESULTS We analysed 1498 and 1492 participants in the intervention and control groups, respectively. Overall, the transfusion rate was 2.5% in the intervention group and 3.5% in the control group [adjusted odds ratio (OR) 0.65, 95% confidence interval (CI) 0.42 to 1.01; p = 0.056]. In a planned subgroup analysis, the transfusion rate was 3.0% in the intervention group and 4.6% in the control group among emergency caesareans (adjusted OR 0.58, 95% CI 0.34 to 0.99), whereas it was 1.8% in the intervention group and 2.2% in the control group among elective caesareans (adjusted OR 0.83, 95% CI 0.38 to 1.83) (interaction p = 0.46, suggesting that the difference in effect between subgroups was not statistically significant). Secondary outcomes did not differ between groups, except for FMH, which was higher under salvage in rhesus D (RhD)-negative women with RhD-positive babies (25.6% vs. 10.5%, adjusted OR 5.63, 95% CI 1.43 to 22.14; p = 0.013). No case of amniotic fluid embolism was observed. The additional cost of routine cell salvage during caesarean was estimated, on average, at £8110 per donor blood transfusion avoided. CONCLUSIONS The modest evidence for an effect of routine use of cell salvage during caesarean section on rates of donor blood transfusion was associated with increased FMH, which emphasises the need for adherence to guidance on anti-D prophylaxis. We are unable to comment on long-term antibody sensitisation effects. Based on the findings of this trial, cell salvage is unlikely to be considered cost-effective. FUTURE WORK Research into risk of alloimmunisation among women exposed to cell salvage is needed. TRIAL REGISTRATION Current Controlled Trials ISRCTN66118656. FUNDING This project was funded by the National Institute for Health Research (NIHR) Health Technology Assessment programme and will be published in full in Health Technology Assessment; Vol. 22, No. 2. See the NIHR Journals Library website for further project information.
Collapse
Affiliation(s)
- Khalid S Khan
- Women's Health Research Unit, Barts and the London School of Medicine and Dentistry, Queen Mary University of London, London, UK
| | - Philip Moore
- Selwyn Crawford Department of Anaesthetics, Birmingham Women's Hospital, Birmingham, UK
| | - Matthew Wilson
- School of Health and Related Research (ScHARR), University of Sheffield, Sheffield, UK
| | - Richard Hooper
- Pragmatic Clinical Trials Unit, Centre for Primary Care and Public Health, Queen Mary University of London, London, UK
| | | | - Ian Wrench
- Anaesthetics, Sheffield Teaching Hospitals NHS Foundation Trust, Sheffield, UK
| | - Tracy Roberts
- Health Economics Unit, University of Birmingham, Birmingham, UK
| | | | - Lee Beresford
- Pragmatic Clinical Trials Unit, Centre for Primary Care and Public Health, Queen Mary University of London, London, UK
| | - James Geoghegan
- Selwyn Crawford Department of Anaesthetics, Birmingham Women's Hospital, Birmingham, UK
| | - Jane Daniels
- Nottingham Clinical Trials Unit, University of Nottingham, Nottingham, UK
| | - Sue Catling
- Department of Anaesthetics, Singleton Hospital, Swansea, UK
| | - Vicki A Clark
- Simpson Centre for Reproductive Health, Royal Infirmary of Edinburgh, Edinburgh, UK
| | - Paul Ayuk
- Women's Services, Royal Victoria Infirmary, Newcastle upon Tyne, UK
| | - Stephen Robson
- Institute of Cellular Medicine, Newcastle University, Newcastle upon Tyne, UK
| | - Fang Gao-Smith
- Perioperative, Critical Care and Trauma Trials Group, University of Birmingham, Birmingham, UK
| | - Matthew Hogg
- Royal London Hospital, Barts Health NHS Trust, London, UK
| | - Louise Jackson
- Health Economics Unit, University of Birmingham, Birmingham, UK
| | - Doris Lanz
- Women's Health Research Unit, Barts and the London School of Medicine and Dentistry, Queen Mary University of London, London, UK
| | - Julie Dodds
- Women's Health Research Unit, Barts and the London School of Medicine and Dentistry, Queen Mary University of London, London, UK
| |
Collapse
|
11
|
McLoughlin C, Roberts TE, Jackson LJ, Moore P, Wilson M, Hooper R, Allard S, Wrench I, Beresford L, Geoghegan J, Daniels J, Catling S, Clark VA, Ayuk P, Robson S, Gao-Smith F, Hogg M, Lanz D, Dodds J, Khan KS. Cost-effectiveness of cell salvage and donor blood transfusion during caesarean section: results from a randomised controlled trial. BMJ Open 2019; 9:e022352. [PMID: 30782867 PMCID: PMC6398743 DOI: 10.1136/bmjopen-2018-022352] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
OBJECTIVES To evaluate the cost-effectiveness of routine use of cell salvage during caesarean section in mothers at risk of haemorrhage compared with current standard of care. DESIGN Model-based cost-effectiveness evaluation alongside a multicentre randomised controlled trial. Three main analyses were carried out on the trial data: (1) based on the intention-to-treat principle; (2) based on the per-protocol principle; (3) only participants who underwent an emergency caesarean section. SETTING 26 obstetric units in the UK. PARTICIPANTS 3028 women at risk of haemorrhage recruited between June 2013 and April 2016. INTERVENTIONS Cell salvage (intervention) versus routine care without salvage (control). PRIMARY OUTCOME MEASURES Cost-effectiveness based on incremental cost per donor blood transfusion avoided. RESULTS In the intention-to-treat analysis, the mean difference in total costs between cell salvage and standard care was £83. The estimated incremental cost-effectiveness ratio (ICER) was £8110 per donor blood transfusion avoided. For the per-protocol analysis, the mean difference in total costs was £92 and the ICER was £8252. In the emergency caesarean section analysis, the mean difference in total costs was £55 and the ICER was £13 713 per donor blood transfusion avoided. This ICER is driven by the increased probability that these patients would require a higher level of postoperative care and additional surgeries. The results of these analyses were shown to be robust for the majority of deterministic sensitivity analyses. CONCLUSIONS The results of the economic evaluation suggest that while routine cell salvage is a marginally more effective strategy than standard care in avoiding a donor blood transfusion, there is uncertainty in relation to whether it is a less or more costly strategy. The lack of long-term data on the health and quality of life of patients in both arms of the trial means that further research is needed to fully understand the cost implications of both strategies. TRIAL REGISTRATION NUMBER ISRCTN66118656.
Collapse
Affiliation(s)
| | - Tracy E Roberts
- Health Economics Unit, University of Birmingham, Birmingham, UK
| | | | - Philip Moore
- Selwyn Crawford Department of Anaesthetics, Birmingham Women's Hospital, Birmingham, UK
| | - Matthew Wilson
- School of Health and Related Research (ScHARR), University of Sheffield, Sheffield, UK
| | - Richard Hooper
- Pragmatic Clinical Trials Unit, Centre for Primary Care & Public Health, Queen Mary University of London, London, UK
| | - Shubha Allard
- Haematology, Barts Health NHS Trust and NHS Blood and Transplant, London, UK
| | - Ian Wrench
- Departmentof Anaesthesia (Northern General Hospital), SheffieldTeaching Hospitals NHS Foundation Trust, Sheffield, UK
| | - Lee Beresford
- Pragmatic Clinical Trials Unit, Centre for Primary Care & Public Health, Queen Mary University of London, London, UK
| | - James Geoghegan
- Selwyn Crawford Department of Anaesthetics, Birmingham Women's Hospital, Birmingham, UK
| | - Jane Daniels
- Nottingham Clinical Trials Unit, University of Nottingham, Nottingham, UK
| | - Sue Catling
- Department of Obstetrics, Singleton Hospital, Swansea, UK
| | - Vicki A Clark
- Simpson Centre for Reproductive Health, Royal Infirmary of Edinburgh, Edinburgh, UK
| | - Paul Ayuk
- Women's Services, RoyalVictoria Infirmary, Newcastle upon Tyne, UK
| | - Stephen Robson
- Institute of Cellular Medicine, Newcastle University, Newcastle Upon Tyne, UK
| | - Fang Gao-Smith
- Perioperative, Critical Care and Trauma Trials Group, University of Birmingham, Birmingham, UK
| | - Matthew Hogg
- Barts Health NHS Trust, Royal London Hospital, London, UK
| | - Doris Lanz
- Women's Health Research Unit, Barts and The London School of Medicine and Dentistry, Queen Mary University of London, London, UK
| | - Julie Dodds
- Women's Health Research Unit, Barts and The London School of Medicine and Dentistry, Queen Mary University of London, London, UK
| | - Khalid S Khan
- Women's Health Research Unit, Barts and The London School of Medicine and Dentistry, Queen Mary University of London, London, UK
| |
Collapse
|
12
|
Yazer MH, Spinella PC, Allard S, Roxby D, So-Osman C, Lozano M, Gunn K, Shih AW, Stensballe J, Johansson PI, Bagge Hansen M, Maegele M, Doughty H, Crombie N, Jenkins DH, McGinity AC, Schaefer RM, Martinaud C, Shinar E, Strugo R, Chen J, Russcher H. Vox Sanguinis International Forum on the use of prehospital blood products and pharmaceuticals in the treatment of patients with traumatic hemorrhage. Vox Sang 2018; 113:816-830. [DOI: 10.1111/vox.12677] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
| | | | | | - D. Roxby
- SA Pathology Transfusion Medicine; Flinders Medical Centre; Flinders Drive Bedford Park SA 5042 Australia
| | | | | | - K. Gunn
- Department of Anaesthesia; Auckland City Hospital; 2 Park Road Grafton, Auckland 1023 New Zealand
| | - A. W. Shih
- Vancouver General Hospital; Department of Pathology and Laboratory Medicine; 855 West 12th Avenue Vancouver BC V5Z 1M9 Canada
| | - J. Stensballe
- Rigshospitalet; Section for Transfusion Medicine; Copenhagen University Hospital; Capital Region Blood Bank; Blegdamsvej 9 Copenhagen 2100 Denmark
| | - P. I. Johansson
- Rigshospitalet; Section for Transfusion Medicine; Copenhagen University Hospital; Capital Region Blood Bank; Blegdamsvej 9 Copenhagen 2100 Denmark
| | - M. Bagge Hansen
- Klinikchef; Rigshospitalet; Klinisk Immulogisk Afd. 2034, Blegdamsvej 9 2100 København Ø Denmark
| | - M. Maegele
- Department of Traumatology and Orthopedic Surgery; Cologne-Merheim Medical Center (CMMC); Institute for Research in Operative Medicine (IFOM); University Witten/Herdecke (UW/H); Ostmerheimerstr. 200 D-51109 Köln Germany
| | - H. Doughty
- NHS Blood and Transplant; Vincent Drive Birmingham UK
- Department of Clinical Traumatology; University Hospitals Birmingham NHS Foundation Trust; Birmingham UK
| | - N. Crombie
- University Hospitals Birmingham NHS Foundation Trust; Birmingham UK
- National Institute for Health Research SRMRC
| | - D. H. Jenkins
- Department of Surgery; UT Health San Antonio; 7703 Floyd Curl Dr San Antonio TX 78229 USA
| | - A. C. McGinity
- Department of Surgery; UT Health San Antonio; 7703 Floyd Curl Dr San Antonio TX 78229 USA
| | - R. M. Schaefer
- Research; Southwest Texas Regional Advisory Council; 7500 US-90 West San Antonio TX 78227 USA
| | - C. Martinaud
- Chief of Clinical Operations; French Military Blood Institute; 1 rue du Lieutenant Raoul Batany, 92 141 Clamart Cedex France
| | - E. Shinar
- Magen David Adom; Ramat Gan 5262100 Israel
| | - R. Strugo
- Magen David Adom; Yigal Alon 60 Tel Aviv 67062 Israel
| | - J. Chen
- Trauma and Combat Medicine Branch; Surgeon General's Headquarters; Israel Defense Force; Ramat Gan Israel
| | - H. Russcher
- Specialist Laboratory Medicine; Dep. Clinical Chemistry; Blood Transfusion Laboratory Erasmus MC; University Medical Center, Rotterdam; Dr. Molewaterplein 60 3015 GD Rotterdam The Netherlands
| |
Collapse
|
13
|
Allard S, Allard P, Le Devehat F, Morel I, Gicquel T. Réseaux moléculaires en toxicologie médico-légale: application à une suspicion d’intoxication à Tabernanthe iboga. Toxicologie Analytique et Clinique 2018. [DOI: 10.1016/j.toxac.2018.07.062] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
|
14
|
Yazer MH, Spinella PC, Allard S, Roxby D, So-Osman C, Lozano M, Gunn K, Shih AWY, Stensballe J, Johansson PI, Bagge Hansen M, Maegele M, Doughty H, Crombie N, Jenkins DH, McGinity A, Schaefer RM, Martinaud C, Shinar E, Strugo R, Chen J, Russcher H. Vox Sanguinis International Forum on the use of prehospital blood products and pharmaceuticals in the treatment of patients with traumatic haemorrhage. Vox Sang 2018; 113:701-706. [PMID: 30144091 DOI: 10.1111/vox.12678] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
While specific practices and transported blood products vary around the world, most of the respondents in this International Forum transported at least one blood product for the transfusion to bleeding patients en route to the hospital. The most commonly carried product was RBCs, while the use of whole blood will likely increase given the recent reports of its successful use in the civilian setting, and because of the change in the AABB's Standards regulating its use. It will be interesting to see if plasma use in the prehospital setting becomes more widely used given today's enhanced appreciated of the coagulopathy of trauma and plasma's beneficial effect in reversing it, and if blood products are transported to the scene of injury by more vehicles, that is, not just predominantly in helicopters. It was not surprising that TXA is being widely administered as close to the time of injury as possible given its potential benefit in these patients. This International Forum highlights the importance of focusing attention on prehospital transfusion management with a need to further high‐quality research in this area to guide optimal resuscitation strategies.
Collapse
Affiliation(s)
- M H Yazer
- Department of Pathology, University of Pittsburgh, Pittsburgh, PA, USA
| | - P C Spinella
- Pediatric Critical Care Translational Research Program, Department of Pediatrics, Washington University in St Louis School of Medicine, St Louis, MO, USA
| | - S Allard
- Clinical, NHS Blood and Transplant, NHSBT, London, UK
| | - D Roxby
- SA Pathology Transfusion Service, Flinders Medical Centre, Bedford Park, SA, Australia
| | - C So-Osman
- Department of Transfusion Medicine, Sanquin Bloodbank, Leiden, The Netherlands.,Department of Internal Medicine, Groene Hart Hospital, Gouda, The Netherlands
| | - M Lozano
- Department of Hemotherapy and Hemostasis, Hospital Clinic, Barcelona, Spain
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
15
|
Allard S, Massey E. Fetal RHD genotyping is a cost-effective option for supporting targeted anti-D prophylaxis in D-negative pregnancies. BJOG 2018; 125:1423. [PMID: 29700947 DOI: 10.1111/1471-0528.15259] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- S Allard
- NHS Blood and Transplant and Barts Health NHS Trust, London, UK
| | - E Massey
- NHS Blood and Transplant, Bristol, University Hospitals Bristol NHS Foundation Trust, Bristol, UK
| |
Collapse
|
16
|
Gicquel T, Allard S, Le Daré B, Baert A, Bouvet R, Morel I. Homicide-suicide par intoxication à l’acébutolol : une approche multimatrice par réseau moléculaire. Toxicologie Analytique et Clinique 2018. [DOI: 10.1016/j.toxac.2018.04.068] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/16/2022]
|
17
|
Affiliation(s)
- C. Booth
- Barts Health NHS Trust; London UK
| | - S. Allard
- Barts Health NHS Trust; London UK
- NHS Blood and Transplant; London UK
| |
Collapse
|
18
|
Khan KS, Moore PAS, Wilson MJ, Hooper R, Allard S, Wrench I, Beresford L, Roberts TE, McLoughlin C, Geoghegan J, Daniels JP, Catling S, Clark VA, Ayuk P, Robson S, Gao-Smith F, Hogg M, Lanz D, Dodds J. Cell salvage and donor blood transfusion during cesarean section: A pragmatic, multicentre randomised controlled trial (SALVO). PLoS Med 2017; 14:e1002471. [PMID: 29261655 PMCID: PMC5736174 DOI: 10.1371/journal.pmed.1002471] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/14/2017] [Accepted: 11/13/2017] [Indexed: 12/29/2022] Open
Abstract
BACKGROUND Excessive haemorrhage at cesarean section requires donor (allogeneic) blood transfusion. Cell salvage may reduce this requirement. METHODS AND FINDINGS We conducted a pragmatic randomised controlled trial (at 26 obstetric units; participants recruited from 4 June 2013 to 17 April 2016) of routine cell salvage use (intervention) versus current standard of care without routine salvage use (control) in cesarean section among women at risk of haemorrhage. Randomisation was stratified, using random permuted blocks of variable sizes. In an intention-to-treat analysis, we used multivariable models, adjusting for stratification variables and prognostic factors identified a priori, to compare rates of donor blood transfusion (primary outcome) and fetomaternal haemorrhage ≥2 ml in RhD-negative women with RhD-positive babies (a secondary outcome) between groups. Among 3,028 women randomised (2,990 analysed), 95.6% of 1,498 assigned to intervention had cell salvage deployed (50.8% had salvaged blood returned; mean 259.9 ml) versus 3.9% of 1,492 assigned to control. Donor blood transfusion rate was 3.5% in the control group versus 2.5% in the intervention group (adjusted odds ratio [OR] 0.65, 95% confidence interval [CI] 0.42 to 1.01, p = 0.056; adjusted risk difference -1.03, 95% CI -2.13 to 0.06). In a planned subgroup analysis, the transfusion rate was 4.6% in women assigned to control versus 3.0% in the intervention group among emergency cesareans (adjusted OR 0.58, 95% CI 0.34 to 0.99), whereas it was 2.2% versus 1.8% among elective cesareans (adjusted OR 0.83, 95% CI 0.38 to 1.83) (interaction p = 0.46). No case of amniotic fluid embolism was observed. The rate of fetomaternal haemorrhage was higher with the intervention (10.5% in the control group versus 25.6% in the intervention group, adjusted OR 5.63, 95% CI 1.43 to 22.14, p = 0.013). We are unable to comment on long-term antibody sensitisation effects. CONCLUSIONS The overall reduction observed in donor blood transfusion associated with the routine use of cell salvage during cesarean section was not statistically significant. TRIAL REGISTRATION This trial was prospectively registered on ISRCTN as trial number 66118656 and can be viewed on http://www.isrctn.com/ISRCTN66118656.
Collapse
Affiliation(s)
- Khalid S. Khan
- Women’s Health Research Unit, Barts and The London School of Medicine and Dentistry, Queen Mary University of London, United Kingdom
| | | | - Matthew J. Wilson
- School of Health and Related Research, University of Sheffield, United Kingdom
| | - Richard Hooper
- Pragmatic Clinical Trials Unit, Centre for Primary Care and Public Health, Queen Mary University of London, United Kingdom
| | | | - Ian Wrench
- Sheffield Teaching Hospitals NHS Foundation Trust, Sheffield, United Kingdom
| | - Lee Beresford
- Pragmatic Clinical Trials Unit, Centre for Primary Care and Public Health, Queen Mary University of London, United Kingdom
| | - Tracy E. Roberts
- Health Economics Unit, Institute of Applied Health Research, University of Birmingham, United Kingdom
| | - Carol McLoughlin
- Health Economics Unit, Institute of Applied Health Research, University of Birmingham, United Kingdom
| | | | - Jane P. Daniels
- Nottingham Clinical Trials Unit, University of Nottingham, United Kingdom
| | | | - Vicki A. Clark
- Simpson Centre for Reproductive Health, Royal Infirmary of Edinburgh, Edinburgh, United Kingdom
| | - Paul Ayuk
- Royal Victoria Infirmary, Newcastle-upon-Tyne, United Kingdom
| | - Stephen Robson
- Institute of Cellular Medicine, Newcastle University, United Kingdom
| | - Fang Gao-Smith
- Peri-operative, Critical Care and Trauma Trials Group, University of Birmingham, United Kingdom
| | - Matthew Hogg
- Royal London Hospital, Barts Health NHS Trust, London, United Kingdom
| | - Doris Lanz
- Women’s Health Research Unit, Barts and The London School of Medicine and Dentistry, Queen Mary University of London, United Kingdom
| | - Julie Dodds
- Women’s Health Research Unit, Barts and The London School of Medicine and Dentistry, Queen Mary University of London, United Kingdom
| | | |
Collapse
|
19
|
Booth C, Grant-Casey J, Lowe D, Court EL, Allard S. National Comparative Audit of Blood Transfusion: report on the 2014 audit of patient information and consent. Transfus Med 2017; 28:271-276. [DOI: 10.1111/tme.12489] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2017] [Revised: 10/03/2017] [Accepted: 10/16/2017] [Indexed: 11/30/2022]
Affiliation(s)
- C. Booth
- Department of Haematology Barts Health NHS Trust London; UK
| | - J. Grant-Casey
- National Comparative Audit of Blood Transfusion, NHS Blood and Transplant; UK
| | - D. Lowe
- Medical Statistician, Astraglobe Limited; UK
| | - E. L. Court
- Department of Surgery, Cheltenham General Hospital; Cheltenham UK
| | - S. Allard
- Department of Haematology Barts Health NHS Trust London; UK
- National Comparative Audit of Blood Transfusion, NHS Blood and Transplant; UK
| | | |
Collapse
|
20
|
Allard S, Monteil-Ganiere C, Visseaux G, Deslandes G, Clément R. « Chemsex » : 2 cas de décès. Toxicologie Analytique et Clinique 2017. [DOI: 10.1016/j.toxac.2017.03.017] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
|
21
|
Wolf S, Morris J, Kennedy K, Lawn M, Mcloughlin T, Feane K, Uprichard J, Weaver A, Allard S, Green L. The impact of providing blood to the scene of an accident on transfusion laboratory practice. Transfus Med 2017; 28:56-59. [PMID: 28295747 DOI: 10.1111/tme.12397] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2016] [Revised: 01/07/2017] [Accepted: 02/05/2017] [Indexed: 11/28/2022]
Abstract
BACKGROUND Haemorrhage is the leading cause of mortality during trauma. In 2012, London's Air Ambulance introduced Blood on Board (BOB), transfusing group O red cells (RBC) to trauma patients at the scene. OBJECTIVES This study assessed the impact of BOB on the number of mixed field samples received by the laboratory, the number of group O RBC transfused to non-group O patients and the ratio of RBC to fresh frozen plasma (FFP) transfused in the initial 24 h. METHODS Three major trauma centres collected data on patients for whom the major haemorrhage protocol was activated between August 2008 and February 2012 pre-BOB and March 2012 and December 2013 post-BOB. RESULTS A total of 233 trauma patients were identified pre-BOB and 119 post-BOB. There was no significant difference in the percentage of group O units transfused to non-group O patients (75 vs 82%, P = 0·21) or the RBC : FFP ratio (pre-BOB mean 1·6 [interquartile range (IQR) 1·0-2·0]; post-BOB mean 1·7 [IQR 1·1-2·2], P = 0·24). There was no significant difference in the percentage of mixed field samples received (23% vs 27%, P = 0·3). CONCLUSION The introduction of BOB did not change the proportion of group O RBC transfused or the RBC : FFP ratio; however, the proportion of acceptable samples decreased. This is largely due to an increase in blood samples not received from the post-BOB cohort, which we believe is probably due to patients who died at the scene. We have introduced robust systems to indicate reasons for not obtaining samples.
Collapse
Affiliation(s)
- S Wolf
- Department of Hematology, Barts Health NHS Trust, London, UK
| | - J Morris
- Barts and the London School of Medicine and Dentistry, Queen Mary University of London, London, UK
| | - K Kennedy
- Department of Hematology, Barts Health NHS Trust, London, UK
| | - M Lawn
- Kings College Hospital, London, UK
| | - T Mcloughlin
- Department of Hematology, Barts Health NHS Trust, London, UK
| | - K Feane
- St George's Healthcare NHS Trust, London, UK
| | - J Uprichard
- St George's Healthcare NHS Trust, London, UK
| | - A Weaver
- Department of Hematology, Barts Health NHS Trust, London, UK
| | - S Allard
- Department of Hematology, Barts Health NHS Trust, London, UK.,NHS Blood and Transplant, London, UK
| | - L Green
- Department of Hematology, Barts Health NHS Trust, London, UK.,Barts and the London School of Medicine and Dentistry, Queen Mary University of London, London, UK.,NHS Blood and Transplant, London, UK
| |
Collapse
|
22
|
Ainley L, Jardim JR, Tan J, Beski S, RiosLeal EM, Allard S, Green L. Prevalence of maternal alloantibodies in a large teaching hospital and their impact on outcomes of fetuses/neonates. Transfus Med 2017; 27:228-230. [DOI: 10.1111/tme.12399] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2016] [Revised: 01/11/2017] [Accepted: 02/08/2017] [Indexed: 11/28/2022]
Affiliation(s)
| | | | - J. Tan
- Barts and the London School of Medicine and Dentistry, Queen Mary University of London; London UK
| | | | | | - S. Allard
- Barts Health NHS Trust
- NHS Blood and Transplant
| | - L. Green
- Barts Health NHS Trust
- Barts and the London School of Medicine and Dentistry, Queen Mary University of London; London UK
- NHS Blood and Transplant
| |
Collapse
|
23
|
Khan K, Moore P, Wilson MJ, Hooper R, Allard S, Wrench I, Beresford L, Roberts T, McLoughlin C, Geoghegan J, Daniels JP, Catling S, Clark VA, Ayuk P, Robson S, Gao-Smith F, Hogg M, Lanz D, Dodds J. LB01: Cell Salvage during Caesarean Section: A Randomised Controlled Trial (The SALVO Trial). Am J Obstet Gynecol 2017. [DOI: 10.1016/j.ajog.2016.11.1047] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
|
24
|
Estcourt LJ, Birchall J, Allard S, Bassey SJ, Hersey P, Kerr JP, Mumford AD, Stanworth SJ, Tinegate H. Guidelines for the use of platelet transfusions. Br J Haematol 2016; 176:365-394. [DOI: 10.1111/bjh.14423] [Citation(s) in RCA: 266] [Impact Index Per Article: 33.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Lise J. Estcourt
- NHSBT and Radcliffe Department of Medicine; University of Oxford; Oxford UK
| | - Janet Birchall
- NHSBT and Department of Haematology; North Bristol NHS Trust; Bristol UK
| | - Shubha Allard
- NHSBT and Department of Haematology; Royal London Hospital; London UK
| | - Stephen J. Bassey
- Department of Haematology; Royal Cornwall Hospital Trust; Cornwall UK
| | - Peter Hersey
- Department of Critical Care Medicine & Anaesthesia; City Hospitals Sunderland NHS Foundation Trust; Sunderland UK
| | - Jonathan Paul Kerr
- Department of Haematology; Royal Devon & Exeter NHS Foundation Trust; Exeter UK
| | - Andrew D. Mumford
- School of Cellular and Molecular Medicine; University of Bristol; Bristol UK
| | | | | | | |
Collapse
|
25
|
Davis BA, Allard S, Qureshi A, Porter JB, Pancham S, Win N, Cho G, Ryan K. Guidelines on red cell transfusion in sickle cell disease Part II: indications for transfusion. Br J Haematol 2016; 176:192-209. [DOI: 10.1111/bjh.14383] [Citation(s) in RCA: 61] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
| | - Shubha Allard
- Barts Health NHS Trust & NHS Blood and Transplant; London UK
| | - Amrana Qureshi
- Oxford University Hospitals NHS Foundation Trust; Oxford UK
| | - John B. Porter
- University College London Hospitals NHS Foundation Trust; London UK
| | - Shivan Pancham
- Sandwell and West Birmingham Hospitals NHS Trust; Birmingham UK
| | - Nay Win
- NHS Blood and Transplant; London UK
| | | | - Kate Ryan
- Central Manchester University Hospitals NHS Foundation Trust; Manchester UK
| | | |
Collapse
|
26
|
Davis BA, Allard S, Qureshi A, Porter JB, Pancham S, Win N, Cho G, Ryan K. Guidelines on red cell transfusion in sickle cell disease. Part I: principles and laboratory aspects. Br J Haematol 2016; 176:179-191. [DOI: 10.1111/bjh.14346] [Citation(s) in RCA: 60] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Affiliation(s)
| | - Shubha Allard
- Barts Health NHS Trust & NHS Blood and Transplant; London UK
| | - Amrana Qureshi
- Oxford University Hospitals NHS Foundation Trust; Oxford UK
| | - John B. Porter
- University College London Hospitals NHS Foundation Trust; London UK
| | - Shivan Pancham
- Sandwell and West Birmingham Hospitals NHS Trust; Birmingham UK
| | - Nay Win
- NHS Blood and Transplant; London UK
| | | | - Kate Ryan
- Central Manchester University Hospitals NHS Foundation Trust; Manchester UK
| | | |
Collapse
|
27
|
Deslandes G, Monteil-Ganière C, Grégoire M, Allard S, Marion M, Bouquié R. Synthacaïne : mosaïque de substances et d’effets. À partir d’un cas. Toxicologie Analytique et Clinique 2016. [DOI: 10.1016/j.toxac.2016.03.041] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
|
28
|
White J, Qureshi H, Massey E, Needs M, Byrne G, Daniels G, Allard S. Guideline for blood grouping and red cell antibody testing in pregnancy. Transfus Med 2016; 26:246-63. [DOI: 10.1111/tme.12299] [Citation(s) in RCA: 49] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2015] [Revised: 02/26/2016] [Accepted: 03/01/2016] [Indexed: 10/22/2022]
Affiliation(s)
- J White
- UK National External Quality Assessment Scheme for Blood Transfusion Laboratory Practice; Watford
| | - H Qureshi
- Department of Haematology; University Hospitals of Leicester
| | - E Massey
- NHS Blood and Transplant & University Hospitals Bristol NHS Foundation Trust
| | - M Needs
- Institute of Biomedical Scientists and NHS Blood and Transplant
| | - G Byrne
- Department of Haematology; University Hospitals of Leicester
| | - G Daniels
- International Blood Group Reference Laboratory; NHS Blood and Transplant
| | - S Allard
- Barts Health NHS Trust and NHS Blood and Transplant
| | | |
Collapse
|
29
|
Stanworth SJ, Davenport R, Curry N, Seeney F, Eaglestone S, Edwards A, Martin K, Allard S, Woodford M, Lecky FE, Brohi K. Mortality from trauma haemorrhage and opportunities for improvement in transfusion practice. Br J Surg 2016; 103:357-65. [DOI: 10.1002/bjs.10052] [Citation(s) in RCA: 83] [Impact Index Per Article: 10.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2015] [Revised: 06/15/2015] [Accepted: 10/12/2015] [Indexed: 12/18/2022]
Abstract
Abstract
Background
The aim of this study was to describe the prevalence, patterns of blood use and outcomes of major haemorrhage in trauma.
Methods
This was a prospective observational study from 22 hospitals in the UK, including both major trauma centres and smaller trauma units. Eligible patients received at least 4 units of packed red blood cells (PRBCs) in the first 24 h of admission with activation of the massive haemorrhage protocol. Case notes, transfusion charts, blood bank records and copies of prescription/theatre charts were accessed and reviewed centrally. Study outcomes were: use of blood components, critical care during hospital stay, and mortality at 24 h, 30 days and 1 year. Data were used to estimate the national trauma haemorrhage incidence.
Results
A total of 442 patients were identified during a median enrolment interval of 20 (range 7–24) months. Based on this, the national incidence of trauma haemorrhage was estimated to be 83 per million. The median age of patients in the study cohort was 38 years and 73·8 per cent were men. The incidence of major haemorrhage increased markedly in patients aged over 65 years. Thirty-six deaths within 24 h of admission occurred within the first 3 h. At 24 h, 79 patients (17·9 per cent) had died, but mortality continued to rise even after discharge. Patients who received a cumulative ratio of fresh frozen plasma to PRBCs of at least 1 : 2 had lower rates of death than those who received a lower ratio. There were delays in administration of blood. Platelets and cryoprecipitate were either not given, or transfused well after initial resuscitation.
Conclusion
There is a high burden of trauma haemorrhage that affects all age groups. Research is required to understand the reasons for death after the first 24 h and barriers to timely transfusion support.
Collapse
Affiliation(s)
- S J Stanworth
- NHS Blood and Transplant/Oxford University Hospitals NHS Trust, John Radcliffe Hospital, and Radcliffe Department of Medicine, University of Oxford, Oxford, UK
| | - R Davenport
- Centre for Trauma Sciences, Barts and the London School of Medicine and Dentistry, Queen Mary University of London, London, UK
| | - N Curry
- Department of Haematology, Churchill Hospital, Oxford University Hospitals NHS Trust, Oxford, UK
| | - F Seeney
- NHS Blood and Transplant, Statistics and Clinical Studies, Bristol, UK
| | - S Eaglestone
- Centre for Trauma Sciences, Barts and the London School of Medicine and Dentistry, Queen Mary University of London, London, UK
| | - A Edwards
- Trauma Audit and Research, Academic Health Science Centre, Institute of Population Health, University of Manchester, Salford Royal Hospitals NHS Foundation Trust, Salford, UK
| | - K Martin
- NHS Blood and Transplant, Statistics and Clinical Studies, Bristol, UK
| | - S Allard
- University of Sheffield/University of Manchester/Salford Royal Hospitals NHS Foundation Trust, EMRiS Group, Health Services Research Section, School of Health and Related Research, University of Sheffield, Sheffield, UK
| | - M Woodford
- Trauma Audit and Research, Academic Health Science Centre, Institute of Population Health, University of Manchester, Salford Royal Hospitals NHS Foundation Trust, Salford, UK
| | - F E Lecky
- University of Sheffield/University of Manchester/Salford Royal Hospitals NHS Foundation Trust, EMRiS Group, Health Services Research Section, School of Health and Related Research, University of Sheffield, Sheffield, UK
| | - K Brohi
- Centre for Trauma Sciences, Barts and the London School of Medicine and Dentistry, Queen Mary University of London, London, UK
| |
Collapse
|
30
|
Tan J, Allard S, Gruchlik Y, McDonald S, Joll CA, Heitz A. Impact of bromide on halogen incorporation into organic moieties in chlorinated drinking water treatment and distribution systems. Sci Total Environ 2016; 541:1572-1580. [PMID: 26490534 DOI: 10.1016/j.scitotenv.2015.10.043] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/11/2015] [Revised: 10/08/2015] [Accepted: 10/08/2015] [Indexed: 06/05/2023]
Abstract
The impact of elevated bromide concentrations (399 to 750 μg/L) on the formation of halogenated disinfection by-products (DBPs), namely trihalomethanes, haloacetic acids, haloacetonitriles, and adsorbable organic halogen (AOX), in two drinking water systems was investigated. Bromine was the main halogen incorporated into all of the DBP classes and into organic carbon, even though chlorine was present in large excess to maintain a disinfectant residual. Due to the higher reactivity of bromine compared to chlorine, brominated DBPs were rapidly formed, followed by a slower increase in chlorinated DBPs. Higher bromine substitution and incorporation factors for individual DBP classes were observed for the chlorinated water from the groundwater source (lower concentration of dissolved organic carbon (DOC)), which contained a higher concentration of bromide, than for the surface water source (higher DOC). The molar distribution of adsorbable organic bromine to chlorine (AOBr/AOCl) for AOX in the groundwater distribution system was 1.5:1 and almost 1:1 for the surface water system. The measured (regulated) DBPs only accounted for 16 to 33% of the total organic halogen, demonstrating that AOX measurements are essential to provide a full understanding of the formation of halogenated DBPs in drinking waters. In addition, the study demonstrated that a significant proportion (up to 94%) of the bromide in source waters can be converted AOBr. An evaluation of AOBr and AOCl through a second groundwater treatment plant that uses conventional treatment processes for DOC removal produced 70% of AOX as AOBr, with 69% of the initial source water bromide converted to AOBr. Exposure to organobromine compounds is suspected to result in greater adverse health consequences than their chlorinated analogues. Therefore, this study highlights the need for improved methods to selectively reduce the bromide content in source waters.
Collapse
Affiliation(s)
- J Tan
- Curtin Water Quality Research Centre, Department of Chemistry, Curtin University, GPO Box U1987, Perth, WA 6845, Australia
| | - S Allard
- Curtin Water Quality Research Centre, Department of Chemistry, Curtin University, GPO Box U1987, Perth, WA 6845, Australia.
| | - Y Gruchlik
- Curtin Water Quality Research Centre, Department of Chemistry, Curtin University, GPO Box U1987, Perth, WA 6845, Australia
| | - S McDonald
- Curtin Water Quality Research Centre, Department of Chemistry, Curtin University, GPO Box U1987, Perth, WA 6845, Australia
| | - C A Joll
- Curtin Water Quality Research Centre, Department of Chemistry, Curtin University, GPO Box U1987, Perth, WA 6845, Australia
| | - A Heitz
- Department of Civil Engineering, Curtin University, GPO Box U1987, Perth, WA 6845, Australia
| |
Collapse
|
31
|
Fowler AJ, Ahmad T, Phull MK, Allard S, Gillies MA, Pearse RM. Meta-analysis of the association between preoperative anaemia and mortality after surgery. Br J Surg 2015; 102:1314-24. [PMID: 26349842 DOI: 10.1002/bjs.9861] [Citation(s) in RCA: 296] [Impact Index Per Article: 32.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2014] [Revised: 02/26/2015] [Accepted: 04/20/2015] [Indexed: 01/28/2023]
Abstract
BACKGROUND Numerous published studies have explored associations between anaemia and adverse outcomes after surgery. However, there are no evidence syntheses describing the impact of preoperative anaemia on postoperative outcomes. METHODS A systematic review and meta-analysis of observational studies exploring associations between preoperative anaemia and postoperative outcomes was performed. Studies investigating trauma, burns, transplant, paediatric and obstetric populations were excluded. The primary outcome was 30-day or in-hospital mortality. Secondary outcomes were acute kidney injury, stroke and myocardial infarction. Predefined analyses were performed for the cardiac and non-cardiac surgery subgroups. A post hoc analysis was undertaken to evaluate the relationship between anaemia and infection. Data are presented as odds ratios (ORs) with 95 per cent c.i. RESULTS From 8973 records, 24 eligible studies including 949 445 patients were identified. Some 371 594 patients (39·1 per cent) were anaemic. Anaemia was associated with increased mortality (OR 2·90, 2·30 to 3·68; I(2) = 97 per cent; P < 0·001), acute kidney injury (OR 3·75, 2·95 to 4·76; I(2) = 60 per cent; P < 0·001) and infection (OR 1·93, 1·17 to 3·18; I(2) = 99 per cent; P = 0·01). Among cardiac surgical patients, anaemia was associated with stroke (OR 1·28, 1·06 to 1·55; I(2) = 0 per cent; P = 0·009) but not myocardial infarction (OR 1·11, 0·68 to 1·82; I(2) = 13 per cent; P = 0·67). Anaemia was associated with an increased incidence of red cell transfusion (OR 5·04, 4·12 to 6·17; I(2) = 96 per cent; P < 0·001). Similar findings were observed in the cardiac and non-cardiac subgroups. CONCLUSION Preoperative anaemia is associated with poor outcomes after surgery, although heterogeneity between studies was significant. It remains unclear whether anaemia is an independent risk factor for poor outcome or simply a marker of underlying chronic disease. However, red cell transfusion is much more frequent amongst anaemic patients.
Collapse
Affiliation(s)
- A J Fowler
- Barts and the London School of Medicine and Dentistry, Queen Mary University of London, London, UK
| | - T Ahmad
- Barts and the London School of Medicine and Dentistry, Queen Mary University of London, London, UK
| | - M K Phull
- Departments of Anaesthesia, Royal London Hospital, Barts Health NHS Trust, London, UK
| | - S Allard
- Departments of Haematology, Royal London Hospital, Barts Health NHS Trust, London, UK
| | - M A Gillies
- Department of Anaesthesia, Critical Care and Pain Medicine, Royal Infirmary of Edinburgh, Edinburgh, UK
| | - R M Pearse
- Barts and the London School of Medicine and Dentistry, Queen Mary University of London, London, UK
| |
Collapse
|
32
|
Hunt BJ, Allard S, Keeling D, Norfolk D, Stanworth SJ, Pendry K. A practical guideline for the haematological management of major haemorrhage. Br J Haematol 2015; 170:788-803. [PMID: 26147359 DOI: 10.1111/bjh.13580] [Citation(s) in RCA: 140] [Impact Index Per Article: 15.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Affiliation(s)
- Beverley J Hunt
- Department of Haematology, GSTT, St Thomas' Hospital, London, UK
| | - Shubha Allard
- Department of Haematology, Royal London Hospital, London, UK
| | - David Keeling
- Oxford Haemophilia and Thrombosis Centre, Oxford University Hospitals, Churchill Hospital, Oxford, UK
| | - Derek Norfolk
- Department of Haematology, Leeds Hospital, Leeds, UK
| | - Simon J Stanworth
- NHSBT/Department of Haematology, John Radcliffe Hospital, Oxford, UK
| | - Kate Pendry
- Patients' Clinical Team, NHSBT, Manchester, UK
| | | |
Collapse
|
33
|
Bansal AK, Antolini F, Sajjad MT, Stroea L, Mazzaro R, Ramkumar SG, Kass KJ, Allard S, Scherf U, Samuel IDW. Photophysical and structural characterisation of in situ formed quantum dots. Phys Chem Chem Phys 2015; 16:9556-64. [PMID: 24727793 DOI: 10.1039/c4cp00727a] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Conjugated polymer-semiconductor quantum dot (QD) composites are attracting increasing attention due to the complementary properties of the two classes of materials. We report a convenient method for in situ formation of QDs, and explore the conditions required for light emission of nanocomposite blends. In particular we explore the properties of nanocomposites of the blue emitting polymer poly[9,9-bis(3,5-di-tert-butylphenyl)-9H-fluorene] together with cadmium sulphide (CdS) and cadmium selenide (CdSe) precursors. We show the formation of emissive quantum dots of CdSe from thermally decomposed precursor. The dots are formed inside the polymer matrix and have a photoluminescence quantum yield of 7.5%. Our results show the importance of appropriate energy level alignment, and are relevant to the application of organic-inorganic systems in optoelectronic devices.
Collapse
Affiliation(s)
- A K Bansal
- Organic Semiconductor Centre, School of Physics and Astronomy, University of St Andrews, North Haugh, St Andrews Fife, KY16 9SS, UK.
| | | | | | | | | | | | | | | | | | | |
Collapse
|
34
|
Daru J, Moores R, Dodds J, Rayment J, Allard S, Khan KS. Non-anaemic iron deficiency in pregnancy: the views of health service users and health care professionals. Transfus Med 2015; 25:27-32. [PMID: 25807860 DOI: 10.1111/tme.12184] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2014] [Revised: 02/06/2015] [Accepted: 03/07/2015] [Indexed: 12/01/2022]
Abstract
BACKGROUND The prevalence of anaemia in pregnancy in Europe is 25% and that resulting from iron deficiency is estimated at 40%. The maternal and fetal morbidity of non-anaemic iron deficiency (NAID) in pregnancy is likely to be significant. OBJECTIVES To determine the views and opinions of health service users and clinicians concerning NAID in pregnancy in order to inform future research. METHODS Two semi-structured focus groups were carried out to determine health service users' views on anaemia and NAID in pregnancy. A questionnaire was administered to obstetricians, haematologists, midwives and anaesthetists to elucidate their views on NAID in pregnancy. RESULTS The study indicated that health service users and clinicians were interested in implementing testing for NAID in pregnancy with serum ferritin, if proven to be effective at reducing the effects of anaemia and improving maternal and neonatal outcomes. Clinicians had reservations in the use of intravenous iron supplementation for NAID in pregnancy. CONCLUSION NAID is now accepted as a target condition for research by health service users and clinicians. The focus of future research should be on screening for NAID and its treatment.
Collapse
Affiliation(s)
- J Daru
- Women's Health Research Unit, Barts and the London Medical School, Queen Mary University of London, London, UK; Department of Obstetrics and Gynaecology, Barts NHS Trust, London, UK
| | | | | | | | | | | |
Collapse
|
35
|
Green L, Allard S, Cardigan R. Modern banking, collection, compatibility testing and storage of blood and blood components. Anaesthesia 2015; 70:373. [DOI: 10.1111/anae.13029] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
|
36
|
Green L, Allard S, Cardigan R. Modern banking, collection, compatibility testing and storage of blood and blood components. Anaesthesia 2015; 70 Suppl 1:3-9, e2. [PMID: 25440389 DOI: 10.1111/anae.12912] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/22/2014] [Indexed: 12/23/2022]
Abstract
The clinical practice of blood transfusion has changed considerably over the last few decades. The potential risk of transfusion transmissible diseases has directed efforts towards the production of safe and high quality blood. All transfusion services now operate in an environment of ever-increasing regulatory controls encompassing all aspects of blood collection, processing and storage. Stringent donor selection, identification of pathogens that can be transmitted through blood, and development of technologies that can enhance the quality of blood, have all led to a substantial reduction in potential risks and complications associated with blood transfusion. In this article, we will discuss the current standards required for the manufacture of blood, starting from blood collection, through processing and on to storage.
Collapse
Affiliation(s)
- L Green
- NHS Blood and Transplant, Barts Health NHS Trust and Barts and the London School of Medicine and Dentistry, Queen Mary University of London, London, UK
| | | | | |
Collapse
|
37
|
Affiliation(s)
- S Allard
- Barts Health NHS Trust; NHS Blood and Transplant; London UK
| |
Collapse
|
38
|
Glasgow SM, Allard S, Rackham R, Doughty H. Going for gold: blood planning for the London 2012 Olympic Games. Transfus Med 2014; 24:145-53. [PMID: 24750387 DOI: 10.1111/tme.12116] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2013] [Revised: 02/04/2014] [Accepted: 02/20/2014] [Indexed: 11/29/2022]
Abstract
The Olympics is one of the largest sporting events in the world. Major events may be complicated by disruption of normal activity and major incidents. Health care and transfusion planners should be prepared for both. Previously, transfusion contingency planning has focused on seasonal blood shortages and pandemic influenzas. This article is the first published account of transfusion contingency planning for a major event. We describe the issues encountered and the lessons identified during transfusion planning for the London 2012 Olympics. Planning was started 18 months in advance and was led by a project team reporting to the Executive. Planning was based on three periods of Gamestime. The requirements were planned with key stakeholders using normal processes enhanced by service developments. Demand planning was based on literature review together with computer modelling. The aim was blood-stock sufficiency complimented by a high readiness donor panel to minimise waste. Plans were widely communicated and table-top exercised. Full transfusion services were maintained during both Games with all demands met. The new service improvements and high readiness donors worked well. Emergency command and control have been upgraded. Red cell concentrate (RCC) stock aged but wastage was not significantly increased. The key to success was: early planning, stakeholder engagement, service developments, integration of transfusion service planning within the wider health care community and conduct within an assurance framework.
Collapse
Affiliation(s)
- S M Glasgow
- Trauma Sciences, Blizard Institute, Barts and the London School of Medicine & Dentistry, Queen Mary University of London, London, UK
| | | | | | | |
Collapse
|
39
|
Qureshi H, Massey E, Kirwan D, Davies T, Robson S, White J, Jones J, Allard S. BCSH guideline for the use of anti-D immunoglobulin for the prevention of haemolytic disease of the fetus and newborn. Transfus Med 2014; 24:8-20. [DOI: 10.1111/tme.12091] [Citation(s) in RCA: 110] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Affiliation(s)
- H. Qureshi
- Department of Haematology; University Hospitals of Leicester; Leicester UK
| | | | - D. Kirwan
- NHS Fetal Anomaly Screening Programme, UK National Screening Committee; University of Exeter; Exeter UK
| | - T. Davies
- NHS Blood & Transplant; Manchester UK
| | - S. Robson
- Department of Fetal Medicine, Institute of Cellular Medicine; Newcastle University; Newcastle upon Tyne UK
| | - J. White
- UKNEQAS Blood Transfusion Laboratory Practice; West Hertfordshire Trust; Hertfordshire UK
| | - J. Jones
- Welsh Blood Service; Pontyclun UK
| | | |
Collapse
|
40
|
Kowalski S, Allard S, Zilberberg K, Riedl T, Scherf U. Direct arylation polycondensation as simplified alternative for the synthesis of conjugated (co)polymers. Prog Polym Sci 2013. [DOI: 10.1016/j.progpolymsci.2013.04.006] [Citation(s) in RCA: 140] [Impact Index Per Article: 12.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
|
41
|
Abstract
Major obstetric haemorrhage (MOH) remains an important medical challenge worldwide, contributing to significant maternal morbidity and mortality. Prompt and appropriate management is essential if we are to improve outcomes and reduce substandard care that may result in adverse consequences. This review describes the current understanding of the pathophysiological aspects of MOH together with the principles of transfusion and haemostatic therapy, with emphasis on a coordinated multidisciplinary approach. We also highlight the current lack of evidence available from randomized controlled trials to inform best practice and the need to prioritize research in this key clinical area.
Collapse
Affiliation(s)
- Shubha Allard
- Barts Health NHS Trust & NHS Blood and Transplant, London, UK
| | | | | |
Collapse
|
42
|
Abstract
The oxidation of dissolved manganese(II) (Mn(II)) during chlorination is a relatively slow process which may lead to residual Mn(II) in treated drinking waters. Chemical Mn(II) oxidation is autocatalytic and consists of a homogeneous and a heterogeneous process; the oxidation of Mn(II) is mainly driven by the latter process. This study demonstrates that Mn(II) oxidation during chlorination is enhanced in bromide-containing waters by the formation of reactive bromine species (e.g., HOBr, BrCl, Br2O) from the oxidation of bromide by chlorine. During oxidation of Mn(II) by chlorine in bromide-containing waters, bromide is recycled and acts as a catalyst. For a chlorine dose of 1 mg/L and a bromide level as low as 10 μg/L, the oxidation of Mn(II) by reactive bromine species becomes the main pathway. It was demonstrated that the kinetics of the reaction are dominated by the adsorbed Mn(OH)2 species for both chlorine and bromine at circumneutral pH. Reactive bromine species such as Br2O and BrCl significantly influence the rate of manganese oxidation and may even outweigh the reactivity of HOBr. Reaction orders in [HOBr]tot were found to be 1.33 (±0.15) at pH 7.8 and increased to 1.97 (±0.17) at pH 8.2 consistent with an important contribution of Br2O which is second order in [HOBr]tot. These findings highlight the need to take bromide, and the subsequent reactive bromine species formed upon chlorination, into account to assess Mn(II) removal during water treatment with chlorine.
Collapse
Affiliation(s)
- S Allard
- Curtin Water Quality Research Centre, Department of Chemistry, Curtin University , GPO Box U1987, Perth WA 6845, Australia
| | | | | | | | | |
Collapse
|
43
|
Nadarajah L, Ashman N, Thuraisingham R, Barber C, Allard S, Green L. Literature review of passenger lymphocyte syndrome following renal transplantation and two case reports. Am J Transplant 2013; 13:1594-600. [PMID: 23617703 DOI: 10.1111/ajt.12219] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/01/2013] [Revised: 02/04/2013] [Accepted: 02/09/2013] [Indexed: 01/25/2023]
Abstract
Passenger lymphocyte syndrome (PLS) is an immune-mediated hemolysis. It occurs following ABO blood group mismatched solid organ and/or bone marrow transplantation between donor and recipient. We report two cases of PLS occurring after renal transplantation. Both recipients received live related kidney transplants; one from his mother and the other from his brother. The direction of blood group transfer, from donor to recipient, was O Rh D+ to A Rh D+ in both cases. Approximately 12 days after transplantation, both recipients showed a rapid fall in their hemoglobin levels with no identifiable bleeding source. DAT positive hemolysis was confirmed and anti-A antibodies were detected in recipient sera, confirming a diagnosis of PLS. Both cases required blood transfusion support to maintain their hemoglobin and both had good renal outcomes. We have identified 99 PLS cases following renal transplant in the English literature. Previous ABO sensitization, donor blood group O to recipient blood group A or B transfer, and ciclosporin treatment have been identified as risk factors for PLS. Clinical outcomes in general are good; nonetheless, cases of graft failure and deaths have been reported. Early diagnosis and appropriate treatment are important in at risk individuals.
Collapse
Affiliation(s)
- L Nadarajah
- Department of Renal Medicine & Transplantation, Barts Health NHS Trust, London, UK.
| | | | | | | | | | | |
Collapse
|
44
|
Allard S, Nottle CE, Chan A, Joll C, von Gunten U. Ozonation of iodide-containing waters: selective oxidation of iodide to iodate with simultaneous minimization of bromate and I-THMs. Water Res 2013; 47:1953-60. [PMID: 23351431 DOI: 10.1016/j.watres.2012.12.002] [Citation(s) in RCA: 72] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/20/2012] [Revised: 11/30/2012] [Accepted: 12/01/2012] [Indexed: 05/21/2023]
Abstract
The presence of iodinated disinfection by-products (I-DBPs) in drinking water poses a potential health concern since it has been shown that I-DBPs are generally more genotoxic and cytotoxic than their chlorinated and brominated analogs. I-DBPs are formed during oxidation/disinfection of iodide-containing waters by reaction of the transient hypoiodous acid (HOI) with natural organic matter (NOM). In this study, we demonstrate that ozone pre-treatment selectively oxidizes iodide to iodate and avoids the formation of I-DBPs. Iodate is non-toxic and is therefore a desired sink of iodine in drinking water. Complete conversion of iodide to iodate while minimizing the bromate formation to below the guideline value of 10 μg L⁻¹ was achieved for a wide range of ozone doses in five raw waters with DOC and bromide concentrations of 1.1-20 mg L⁻¹ and 170-940 μg L⁻¹, respectively. Lowering the pH effectively further reduced bromate formation but had no impact on the extent of iodate and bromoform formation (the main trihalomethane (THM) formed during ozonation). Experiments carried out with pre-chlorinated/post-clarified samples already containing I-DBPs, showed that ozonation effectively oxidized I-THMs. Therefore, in iodide-containing waters, in which I-DBPs can be produced upon chlorination or especially chloramination, a pre-ozonation step to oxidize iodide to iodate is an efficient process to mitigate I-DBP formation.
Collapse
Affiliation(s)
- S Allard
- Curtin Water Quality Research Centre, Department of Chemistry, Curtin University, Kent Street Bentley, WA 6102, Australia
| | | | | | | | | |
Collapse
|
45
|
Allard S. Blood Transfusion: Safety, Optimisation and New Advances. Thalassemia Reports 2013. [DOI: 10.4081/thal.2013.s1.e23] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
This article is distributed under the terms of the Creative Commons Attribution [...]
Collapse
|
46
|
Retter A, Wyncoll D, Pearse R, Carson D, McKechnie S, Stanworth S, Allard S, Thomas D, Walsh T. Guidelines on the management of anaemia and red cell transfusion in adult critically ill patients. Br J Haematol 2013; 160:445-64. [PMID: 23278459 DOI: 10.1111/bjh.12143] [Citation(s) in RCA: 184] [Impact Index Per Article: 16.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Andrew Retter
- Intensive Care Unit, Guy's & St. Thomas' Hospital, Lambeth, London, UK
| | | | | | | | | | | | | | | | | |
Collapse
|
47
|
Raza I, Davenport R, Rourke C, Platton S, Manson J, Spoors C, Khan S, De'Ath HD, Allard S, Hart DP, Pasi KJ, Hunt BJ, Stanworth S, MacCallum PK, Brohi K. The incidence and magnitude of fibrinolytic activation in trauma patients. J Thromb Haemost 2013; 11:307-14. [PMID: 23176206 DOI: 10.1111/jth.12078] [Citation(s) in RCA: 340] [Impact Index Per Article: 30.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
BACKGROUND Trauma is a global disease, with over 2.5 million deaths annually from hemorrhage and coagulopathy. Overt hyperfibrinolysis is rare in trauma, and is associated with massive fatal injuries. Paradoxically, clinical trials suggest a much broader indication for antifibrinolytics. OBJECTIVE To determine the incidence and magnitude of fibrinolytic activation in trauma patients and its relationship to clot lysis as measured by thromboelastometry. METHODS A prospective cohort study of 303 consecutive trauma patients admitted between January 2007 and June 2009 was performed. Blood was drawn on arrival for thromboelastometry (TEM) and coagulation assays. Follow-up was until hospital discharge or death. TEM hyperfibrinolysis was defined as maximum clot lysis of > 15%. Fibrinolytic activation (FA) was determined according to plasmin-antiplasmin (PAP) complex and D-dimer levels. Data were collected on demographics, mechanism, severity of injury, and baseline vital signs. The primary outcome measure was 28-day mortality. The secondary outcome measures were 28-day ventilator-free days and 24-h transfusion requirement. RESULTS Only 5% of patients had severe fibrinolysis on TEM, but 57% of patients had evidence of 'moderate' fibrinolysis, with PAP complex levels elevated to over twice normal (> 1500 μg L(-1)) without lysis on TEM. TEM detected clot lysis only when PAP complex levels were increased to 30 times normal (P < 0.001) and antiplasmin levels were < 75% of normal. Patients with FA had increased 28-day mortality as compared with those with no FA (12% vs. 1%, P < 0.001), fewer ventilator-free days, and longer hospital stay. CONCLUSIONS FA occurs in the majority of trauma patients, and the magnitude of FA correlates with poor clinical outcome. This was not detected by conventional TEM, which is an insensitive measure of endogenous fibrinolytic activity.
Collapse
Affiliation(s)
- I Raza
- Centre for Trauma Sciences, Barts and the London School of Medicine and Dentistry, Queen Mary University of, London, UK
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
48
|
Tinegate H, Birchall J, Gray A, Haggas R, Massey E, Norfolk D, Pinchon D, Sewell C, Wells A, Allard S. Guideline on the investigation and management of acute transfusion reactions. Prepared by the BCSH Blood Transfusion Task Force. Br J Haematol 2012; 159:143-53. [PMID: 22928769 DOI: 10.1111/bjh.12017] [Citation(s) in RCA: 95] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Although acute non-haemolytic febrile or allergic reactions (ATRs) are a common complication of transfusion and often result in little or no morbidity, prompt recognition and management are essential. The serious hazards of transfusion haemovigilance organisation (SHOT) receives 30-40 reports of anaphylactic reactions each year. Other serious complications of transfusion, such as acute haemolysis, bacterial contamination, transfusion-related acute lung injury (TRALI) or transfusion-associated circulatory overload (TACO) may present with similar clinical features to ATR. This guideline describes the approach to a patient developing adverse symptoms and signs related to transfusion, including initial recognition, establishing a likely cause, treatment, investigations, planning future transfusion and reporting within the hospital and to haemovigilance organisations. Key recommendations are that adrenaline should be used as first line treatment of anaphylaxis, and that transfusions should only be carried out where patients can be directly observed and where staff are trained in manging complications of transfusion, particularly anaphylaxis. Management of ATRs is not dependent on classification but should be guided by symptoms and signs. Patients who have experienced an anaphylactic reaction should be discussed with an allergist or immunologist, in keeping with UK resuscitation council guidelines.
Collapse
Affiliation(s)
- Hazel Tinegate
- NHS Blood and Transplant, Holland Drive, Newcastle upon Tyne, UK.
| | | | | | | | | | | | | | | | | | | |
Collapse
|
49
|
Glasgow SM, Allard S, Doughty H, Spreadborough P, Watkins E. Blood and bombs: the demand and use of blood following the London Bombings of 7 July 2005 - a retrospective review. Transfus Med 2012; 22:244-50. [DOI: 10.1111/j.1365-3148.2012.01173.x] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Affiliation(s)
- S. M. Glasgow
- Trauma Sciences; Blizard Institute, Barts and the London School of Medicine & Dentistry, Queen Mary University of London; London; UK
| | | | | | - P. Spreadborough
- Academic Department of Military Surgery & Trauma (ADMST); Royal Centre for Defence Medicine; Birmingham; UK
| | - E. Watkins
- NHS Blood and Transplant; Birmingham; UK
| |
Collapse
|
50
|
Parker JA, Barroso F, Stanworth SJ, Spiby H, Hopewell S, Doree CJ, Renfrew MJ, Allard S. Gaps in the evidence for prevention and treatment of maternal anaemia: a review of systematic reviews. BMC Pregnancy Childbirth 2012; 12:56. [PMID: 22727258 PMCID: PMC3475131 DOI: 10.1186/1471-2393-12-56] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2011] [Accepted: 06/01/2012] [Indexed: 01/08/2023] Open
Abstract
BACKGROUND Anaemia, in particular due to iron deficiency, is common in pregnancy with associated negative outcomes for mother and infant. However, there is evidence of significant variation in management. The objectives of this review of systematic reviews were to analyse and summarise the evidence base, identify gaps in the evidence and develop a research agenda for this important component of maternity care. METHODS Multiple databases were searched, including MEDLINE, EMBASE and The Cochrane Library. All systematic reviews relating to interventions to prevent and treat anaemia in the antenatal and postnatal period were eligible. Two reviewers independently assessed data inclusion, extraction and quality of methodology. RESULTS 27 reviews were included, all reporting on the prevention and treatment of anaemia in the antenatal (n = 24) and postnatal periods (n = 3). Using AMSTAR as the assessment tool for methodological quality, only 12 of the 27 were rated as high quality reviews. The greatest number of reviews covered antenatal nutritional supplementation for the prevention of anaemia (n = 19). Iron supplementation was the most extensively researched, but with ongoing uncertainty about optimal dose and regimen. Few identified reviews addressed anaemia management post-partum or correlations between laboratory and clinical outcomes, and no reviews reported on clinical symptoms of anaemia. CONCLUSIONS The review highlights evidence gaps including the management of anaemia in the postnatal period, screening for anaemia, and optimal interventions for treatment. Research priorities include developing standardised approaches to reporting of laboratory outcomes, and information on clinical outcomes relevant to the experiences of pregnant women.
Collapse
Affiliation(s)
- Jacqui A Parker
- Department of Obstetric Anaesthesia, John Radcliffe Hospital, Headley Way, Headington, Oxford OX3 9BQ, UK
| | - Filipa Barroso
- Department of Haematology, Barts and London Hospitals NHS Trust & NHS Blood & Transplant, London, UK
| | - Simon J Stanworth
- Department of Haematology, John Radcliffe Hospital, NHS Blood & Transplant/Oxford Radcliffe Hospitals Trust, University of Oxford, Oxford, UK
| | - Helen Spiby
- School of Nursing, Midwifery and Physiotherapy, University of Nottingham, Nottingham, UK
| | - Sally Hopewell
- Systematic Review Initiative, NHS Blood & Transplant, John Radcliffe Hospital, Oxford, UK
| | - Carolyn J Doree
- Systematic Review Initiative, NHS Blood & Transplant, John Radcliffe Hospital, Oxford, UK
| | - Mary J Renfrew
- Mother and Infant Research Unit, Dept of Health Sciences, University of York, York, UK
| | - Shubha Allard
- Department of Haematology, Barts and London Hospitals NHS Trust & NHS Blood & Transplant, London, UK
| |
Collapse
|