1
|
Patterson TJ, Kedzierski A, McKinney D, Ritson J, McLean C, Gu W, Colyer M, McClellan SF, Miller SC, Justin GA, Hoskin AK, Cavuoto K, Leong J, Rousselot Ascarza A, Woreta FA, Miller KE, Caldwell MC, Gensheimer WG, Williamson T, Dhawahir-Scala F, Shah P, Coombes A, Sundar G, Mazzoli RA, Woodcock M, Watson SL, Kuhn F, Halliday S, Gomes RSM, Agrawal R, Blanch RJ. The Risk of Sympathetic Ophthalmia Associated with Open-Globe Injury Management Strategies: A Meta-analysis. Ophthalmology 2024; 131:557-567. [PMID: 38086434 DOI: 10.1016/j.ophtha.2023.12.006] [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] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2023] [Revised: 12/06/2023] [Accepted: 12/06/2023] [Indexed: 02/12/2024] Open
Abstract
TOPIC Sympathetic ophthalmia (SO) is a sight-threatening granulomatous panuveitis caused by a sensitizing event. Primary enucleation or primary evisceration, versus primary repair, as a risk management strategy after open-globe injury (OGI) remains controversial. CLINICAL RELEVANCE This systematic review was conducted to report the incidence of SO after primary repair compared with that of after primary enucleation or primary evisceration. This enabled the reporting of an estimated number needed to treat. METHODS Five journal databases were searched. This review was registered with International Prospective Register of Systematic Reviews (identifier, CRD42021262616). Searches were carried out on June 29, 2021, and were updated on December 10, 2022. Prospective or retrospective studies that reported outcomes (including SO or lack of SO) in a patient population who underwent either primary repair and primary enucleation or primary evisceration were included. A systematic review and meta-analysis were carried out in accordance with Preferred Reporting Items for Systematic Reviews and Meta-analyses guidelines. Random effects modelling was used to estimate pooled SO rates and absolute risk reduction (ARR). RESULTS Eight studies reporting SO as an outcome were included in total. The included studies contained 7500 patients and 7635 OGIs. In total, 7620 OGIs met the criteria for inclusion in this analysis; SO developed in 21 patients with OGI. When all included studies were pooled, the estimated SO rate was 0.12% (95% confidence interval [CI], 0.00%-0.25%) after OGI. Of 779 patients who underwent primary enucleation or primary evisceration, no SO cases were reported, resulting in a pooled SO estimate of 0.05% (95% CI, 0.00%-0.21%). For primary repair, the pooled estimate of SO rate was 0.15% (95% CI, 0.00%-0.33%). The ARR using a random effects model was -0.0010 (in favour of eye removal; 95% CI, -0.0031 [in favor of eye removal] to 0.0011 [in favor of primary repair]). Grading of Recommendations, Assessment, Development, and Evaluations analysis highlighted a low certainty of evidence because the included studies were observational, and a risk of bias resulted from missing data. DISCUSSION Based on the available data, no evidence exists that primary enucleation or primary evisceration reduce the risk of secondary SO. FINANCIAL DISCLOSURE(S) Proprietary or commercial disclosure may be found in the Footnotes and Disclosures at the end of this article.
Collapse
Affiliation(s)
- Tim J Patterson
- Northern Ireland Medical and Dental Training Agency (NIMDTA), Beflast, United Kingdom
| | | | - David McKinney
- Northern Ireland Medical and Dental Training Agency (NIMDTA), Beflast, United Kingdom
| | - Jonathan Ritson
- Cambridge University Hospitals NHS Trust, Cambridge, United Kingdom; Royal Centre for Defence Medicine, Birmingham, United Kingdom
| | - Chris McLean
- Epsom and St Helier University Hospitals NHS Trust, Epsom, United Kingdom
| | - Weidong Gu
- Vision Center of Excellence, Research & Development Directorate, J-9, Defence Health Agency, Silver Spring, Maryland
| | - Marcus Colyer
- Uniformed Services University of the Health Sciences, Bethesda, Maryland
| | - Scott F McClellan
- Vision Center of Excellence, Research & Development Directorate, J-9, Defence Health Agency, Silver Spring, Maryland
| | - Sarah C Miller
- Wilmer Eye Institute, Johns Hopkins University School of Medicine, Baltimore, Maryland
| | - Grant A Justin
- Uniformed Services University of the Health Sciences, Bethesda, Maryland; Duke Eye Center, Duke University Hospitals, Durham, North Carolina
| | - Annette K Hoskin
- The University of Sydney, Save Sight Institute, Discipline of Ophthalmology, Sydney Medical School, Sydney, New South Wales, Australia; Lions Eye Institute, University of Western Australia, Perth, Australia
| | - Kara Cavuoto
- Bascom Palmer Eye Institute, Leonard M. Miller School of Medicine, University of Miami, Miami, Florida
| | - James Leong
- The University of Sydney, Save Sight Institute, Discipline of Ophthalmology, Sydney Medical School, Sydney, New South Wales, Australia; Save Sight Institute, Faculty of Medicine and Health, The University of Sydney, Sydney, New South Wales, Australia
| | - Andrés Rousselot Ascarza
- Consultorios Oftalmológicos Benisek-Ascarza, Ciudad Autónoma de Buenos Aires, Buenos Aires, Argentina
| | - Fasika A Woreta
- Wilmer Eye Institute, Johns Hopkins University School of Medicine, Baltimore, Maryland
| | - Kyle E Miller
- Uniformed Services University of the Health Sciences, Bethesda, Maryland; Department of Ophthalmology, Navy Medical Center Portsmouth, Portsmouth, Virginia
| | - Matthew C Caldwell
- Department of Ophthalmology, San Antonio Uniformed Services Health Education Consortium, San Antonio, Texas
| | - William G Gensheimer
- Dartmouth-Hitchcock Medical Center, Lebanon, New Hampshire; White River Junction Veterans Administration Medical Center, White River Junction, Vermont
| | - Tom Williamson
- Department of Ophthalmology, St. Thomas Hospital, London, United Kingdom
| | | | - Peter Shah
- Birmingham Institute for Glaucoma Research, Birmingham, United Kingdom; Department of Ophthalmology, University Hospitals Birmingham NHS Foundation Trust, Birmingham, United Kingdom
| | - Andrew Coombes
- Department of Ophthalmology, The Royal London Hospital, Barts Health NHS Trust, London, United Kingdom
| | - Gangadhara Sundar
- Department of Ophthalmology, National University Hospital, Singapore, Republic of Singapore
| | - Robert A Mazzoli
- Uniformed Services University of the Health Sciences, Bethesda, Maryland
| | - Malcolm Woodcock
- Worcestershire Acute Hospitals NHS Trust, Worcester, United Kingdom
| | - Stephanie L Watson
- Save Sight Institute, Faculty of Medicine and Health, The University of Sydney, Sydney, New South Wales, Australia
| | - Ferenc Kuhn
- Helen Keller Foundation for Research and Education, Birmingham, Alabama
| | | | - Renata S M Gomes
- Research & Innovation, BRAVO VICTOR, London, United Kingdom; Northern Hub for Veterans and Military Families Research, Northumbria University, Newcastle, United Kingdom
| | - Rupesh Agrawal
- National Healthcare Group Eye Institute, Tan Tock Seng Hospital, Singapore, Republic of Singapore; Singapore Eye Research Institute, Singapore, Republic of Singapore; Lee Kong Chian School of Medicine, Singapore, Republic of Singapore; Duke NUS Medical School, Singapore, Republic of Singapore
| | - Richard J Blanch
- Department of Ophthalmology, University Hospitals Birmingham NHS Foundation Trust, Birmingham, United Kingdom; Neuroscience & Ophthalmology, Institute of Inflammation & Ageing, College of Medical and Dental Sciences, University of Birmingham, Birmingham, United Kingdom; Department of Ophthalmology, University Hospitals Birmingham NHS Foundation Trust, Birmingham, United Kingdom; Academic Department of Military Surgery and Trauma, Royal Centre for Defence Medicine, Birmingham, United Kingdom.
| |
Collapse
|
2
|
Patterson TJ, Gu W, Colyer M, McClellan SF, Justin GA, Hoskin AK, Cavuoto K, Leong J, Ascarza AR, Gensheimer WG, Williamson T, Dhawahir-Scala F, Shah P, Sundar G, Woodcock M, Agrawal R, Blanch RJ. Reply. Ophthalmol Retina 2024; 8:e10-e11. [PMID: 38349314 DOI: 10.1016/j.oret.2024.01.001] [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: 12/14/2023] [Revised: 12/21/2023] [Accepted: 01/02/2024] [Indexed: 04/07/2024]
Affiliation(s)
- Tim J Patterson
- Northern Ireland Medical and Dental Training Agency (NIMDTA), Belfast, United Kingdom
| | - Weidong Gu
- Vision Center of Excellence, Research & Development Directorate, J-9, Defence Health Agency, Silver Spring, Maryland
| | - Marcus Colyer
- Uniformed Services University of the Health Sciences, Bethesda, Maryland
| | - Scott F McClellan
- Vision Center of Excellence, Research & Development Directorate, J-9, Defence Health Agency, Silver Spring, Maryland
| | - Grant A Justin
- Uniformed Services University of the Health Sciences, Bethesda, Maryland; Duke Eye Center, Duke University Hospitals, Durham, North Carolina
| | - Annette K Hoskin
- The University of Sydney, Save Sight Institute, Discipline of Ophthalmology, Sydney Medical School, Sydney, New South Wales, Australia; Lions Eye Institute, University of Western Australia, Perth, Australia
| | - Kara Cavuoto
- Bascom Palmer Eye Institute, Leonard M. Miller School of Medicine, University of Miami, Miami, Florida
| | - James Leong
- The University of Sydney, Save Sight Institute, Discipline of Ophthalmology, Sydney Medical School, Sydney, New South Wales, Australia; The University of Sydney, Save Sight Institute, Faculty of Medicine and Health, Sydney, New South Wales, Australia
| | - Andrés Rousselot Ascarza
- Consultorios Oftalmológicos Benisek-Ascarza, Ciudad Autónoma de Buenos Aires, C1115ABB Buenos Aires, Argentina
| | - William G Gensheimer
- Dartmouth-Hitchcock Medical Center, Lebanon, New Hampshire; White River Junction Veterans Administration Medical Center, White River Junction, Vermont
| | - Tom Williamson
- Department of Ophthalmology, St Thomas Hospital, London, United Kingdom
| | | | - Peter Shah
- Birmingham Institute for Glaucoma Research, Birmingham, United Kingdom; Ophthalmology Department, University Hospitals Birmingham NHS Foundation Trust, Birmingham, United Kingdom
| | - Gangadhara Sundar
- Department of Ophthalmology, National University Hospital, Singapore
| | - Malcolm Woodcock
- Worcestershire Acute Hospitals NHS Trust, Worcester, United Kingdom
| | - Rupesh Agrawal
- National Healthcare Group Eye Institute, Tan Tock Seng Hospital, Singapore; Singapore Eye Research Institute, Singapore; Lee Kong Chian School of Medicine, Singapore; Duke NUS Medical School, Singapore
| | - Richard J Blanch
- Ophthalmology Department, University Hospitals Birmingham NHS Foundation Trust, Birmingham, United Kingdom; Neuroscience & Ophthalmology, Institute of Inflammation & Ageing, College of Medical and Dental Sciences, University of Birmingham, Birmingham, United Kingdom; Royal Centre for Defence Medicine, Birmingham, United Kingdom.
| |
Collapse
|
3
|
Kelly T, Leong J. Long-term follow-up of keystone perforator island flap in reconstructed myelomeningocele defects. JPRAS Open 2023; 38:261-268. [PMID: 37965636 PMCID: PMC10641560 DOI: 10.1016/j.jpra.2023.09.008] [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] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2023] [Accepted: 09/23/2023] [Indexed: 11/16/2023] Open
Abstract
Myelomeningocele (a type of spina bifida) is the most common congenital condition that causes lifelong physical disability and requires multi-system surgical procedures. Therefore, it is paramount to reconstruct them using a stable and robust method that heals with minimal wound issues and produces maximum durability. We published a case series on reconstruction of myelomeningocele defects using keystone perforator island flap in the Annals of Plastic Surgery in 2016.1 We aim to report the results of long-term follow-up of 14 years on our case series, where we assessed their scars using POSAS 3.0. We also assessed their quality of life using the QUALAS tool for teenagers. While there are multiple reconstructive options for the closure of myelomeningocele defects, we believe that the keystone perforator island flap technique is reliable and safe as it utilizes the en bloc movement of a large flap of well-vascularized skin, cutis, and muscular fascia to close large defects in the lumbar-sacral regions in newborns, resulting in stable scars.2-7.
Collapse
Affiliation(s)
- Tetyana Kelly
- Plastic and Reconstructive Surgery Department, Monash Children's Hospital, Melbourne, Australia
| | - James Leong
- Department of Surgery (School of Clinical Sciences at Monash Health), Monash University, Melbourne, Australia
| |
Collapse
|
4
|
Patterson TJ, McKinney D, Ritson J, McLean C, Gu W, Colyer M, McClellan SF, Miller SC, Justin GA, Hoskin AK, Cavuoto K, Leong J, Ascarza AR, Woreta FA, Miller KE, Caldwell MC, Gensheimer WG, Williamson T, Dhawahir-Scala F, Shah P, Coombes A, Sundar G, Mazzoli RA, Woodcock M, Kuhn F, Watson SL, Gomes RSM, Agrawal R, Blanch RJ. The Use of Preoperative Prophylactic Systemic Antibiotics for the Prevention of Endopthalmitis in Open Globe Injuries: A Meta-Analysis. Ophthalmol Retina 2023; 7:972-981. [PMID: 37406735 DOI: 10.1016/j.oret.2023.06.022] [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] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2023] [Revised: 06/26/2023] [Accepted: 06/27/2023] [Indexed: 07/07/2023]
Abstract
TOPIC This study reports the effect of systemic prophylactic antibiotics (and their route) on the risk of endophthalmitis after open globe injury (OGI). CLINICAL RELEVANCE Endophthalmitis is a major complication of OGI; it can lead to rapid sight loss in the affected eye. The administration of systemic antibiotic prophylaxis is common practice in some health care systems, although there is no consensus on their use. METHODS PubMed, CENTRAL, Web of Science, CINAHL, and Embase were searched. This was completed July 6, 2021 and updated December 10, 2022. We included randomized and nonrandomized prospective studies which reported the rate of post-OGI endophthalmitis when systemic preoperative antibiotic prophylaxis (via the oral or IV route) was given. The Cochrane Risk of Bias tool and ROBINS-I tool were used for assessing the risk of bias. Where meta-analysis was performed, results were reported as an odds ratio. PROSPERO registration: CRD42021271271. RESULTS Three studies were included. One prospective observational study compared outcomes of patients who had received systemic or no systemic preoperative antibiotics. The endophthalmitis rates reported were 3.75% and 4.91% in the systemic and no systemic preoperative antibiotics groups, a nonsignificant difference (P = 0.68). Two randomized controlled trials were included (1555 patients). The rates of endophthalmitis were 17 events in 751 patients (2.26%) and 17 events in 804 patients (2.11%) in the oral antibiotics and IV (± oral) antibiotics groups, respectively. Meta-analysis demonstrated no significant differences between groups (odds ratio, 1.07; 95% confidence interval, 0.54-2.12). CONCLUSIONS The incidences of endophthalmitis after OGI were low with and without systemic antibiotic prophylaxis, although high-risk cases were excluded in the included studies. When antibiotic prophylaxis is considered, there is moderate evidence that oral antibiotic administration is noninferior to IV. FINANCIAL DISCLOSURE(S) The author(s) have no proprietary or commercial interest in any materials discussed in this article.
Collapse
Affiliation(s)
- Tim J Patterson
- Northern Ireland Medical and Dental Training Agency (NIMDTA), Belfast
| | - David McKinney
- Northern Ireland Medical and Dental Training Agency (NIMDTA), Belfast
| | - Jonathan Ritson
- Cambridge University Hospitals NHS Trust, Cambridge, United Kingdom; Royal Centre for Defence Medicine, Birmingham, United Kingdom
| | - Chris McLean
- Epsom and St Helier University Hospitals NHS Trust, Carshalton, United Kingdom
| | - Weidong Gu
- Vision Center of Excellence, Research & Development Directorate, J-9, Defence Health Agency, Silver Spring, Maryland
| | - Marcus Colyer
- Uniformed Services University of the Health Sciences, Bethesda, Maryland
| | - Scott F McClellan
- Vision Center of Excellence, Research & Development Directorate, J-9, Defence Health Agency, Silver Spring, Maryland
| | - Sarah C Miller
- Wilmer Eye Institute, Johns Hopkins University School of Medicine, Baltimore, Maryland
| | - Grant A Justin
- Uniformed Services University of the Health Sciences, Bethesda, Maryland; Duke Eye Center, Duke University Hospitals, Durham, North Carolina
| | - Annette K Hoskin
- The University of Sydney, Save Sight Institute, Discipline of Ophthalmology, Sydney Medical School, Sydney, New South Wales, Australia; Lions Eye Institute, University of Western Australia, Perth, Australia
| | - Kara Cavuoto
- Bascom Palmer Eye Institute, Leonard M. Miller School of Medicine, University of Miami, Miami, Florida
| | - James Leong
- The University of Sydney, Save Sight Institute, Discipline of Ophthalmology, Sydney Medical School, Sydney, New South Wales, Australia; The University of Sydney, Save Sight Institute, Faculty of Medicine and Health, Sydney, NSW, Australia
| | - Andrés Rousselot Ascarza
- Consultorios Oftalmológicos Benisek-Ascarza, Ciudad Autónoma de Buenos Aires, C1115ABB Buenos Aires, Argentina
| | - Fasika A Woreta
- Wilmer Eye Institute, Johns Hopkins University School of Medicine, Baltimore, Maryland
| | - Kyle E Miller
- Uniformed Services University of the Health Sciences, Bethesda, Maryland; Department of Ophthalmology, Navy Medical Center Portsmouth, Portsmouth, Virginia
| | - Matthew C Caldwell
- Department of Ophthalmology, San Antonio Uniformed Services Health Education Consortium, San Antonio, Texas
| | - William G Gensheimer
- Dartmouth-Hitchcock Medical Center, Lebanon, New Hampshire; White River Junction Veterans Administration Medical Center, White River Junction, Vermont
| | - Tom Williamson
- Department of Ophthalmology, St Thomas Hospital, London, United Kingdom
| | | | - Peter Shah
- Birmingham Institute for Glaucoma Research, Birmingham, United Kingdom; Ophthalmology Department, University Hospitals Birmingham NHS Foundation Trust, Birmingham, United Kingdom
| | - Andrew Coombes
- Department of Ophthalmology, The Royal London Hospital, Barts Health NHS Trust, Whitechapel Road, London, United Kingdom
| | - Gangadhara Sundar
- Department of Ophthalmology, National University Hospital, Singapore
| | - Robert A Mazzoli
- Uniformed Services University of the Health Sciences, Bethesda, Maryland
| | - Malcolm Woodcock
- Worcestershire Acute Hospitals NHS Trust, Worcester, United Kingdom
| | - Ferenc Kuhn
- Helen Keller Foundation for Research and Education, Birmingham, Alabama
| | - Stephanie L Watson
- The University of Sydney, Save Sight Institute, Faculty of Medicine and Health, Sydney, NSW, Australia
| | - Renata S M Gomes
- BRAVO VICTOR, Research & Innovation, London, United Kingdom; Northern Hub for Veterans and Military Families Research, Northumbria University, Newcastle, United Kingdom
| | - Rupesh Agrawal
- National Healthcare Group Eye Institute, Tan Tock Seng Hospital, Singapore; Singapore Eye Research Institute, Singapore; Lee Kong Chian School of Medicine, Singapore; Duke NUS Medical School, Singapore
| | - Richard J Blanch
- Ophthalmology Department, University Hospitals Birmingham NHS Foundation Trust, Birmingham, United Kingdom; Neuroscience & Ophthalmology, Institute of Inflammation & Ageing, College of Medical and Dental Sciences, University of Birmingham, Birmingham, United Kingdom; Ophthalmology Department, University Hospitals Birmingham NHS Foundation Trust, Birmingham, United Kingdom; Academic Department of Military Surgery and Trauma, Royal Centre for Defence Medicine, Birmingham, United Kingdom.
| |
Collapse
|
5
|
Young BC, Bush SJ, Lipworth S, George S, Dingle KE, Sanderson N, Brankin A, Walker T, Sharma S, Leong J, Plaha P, Hofer M, Chiodini P, Gottstein B, Furrer L, Crook D, Brent A. Modern Solutions for Ancient Pathogens: Direct Pathogen Sequencing for Diagnosis of Lepromatous Leprosy and Cerebral Coenurosis. Open Forum Infect Dis 2022; 9:ofac428. [PMID: 36119959 PMCID: PMC9472670 DOI: 10.1093/ofid/ofac428] [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] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2022] [Accepted: 08/21/2022] [Indexed: 11/26/2022] Open
Abstract
Microbes unculturable in vitro remain diagnostically challenging, dependent historically on clinical findings, histology, or targeted molecular detection. We applied whole-genome sequencing directly from tissue to diagnose infections with mycobacteria (leprosy) and parasites (coenurosis). Direct pathogen DNA sequencing provides flexible solutions to diagnosis of difficult pathogens in diverse contexts.
Collapse
Affiliation(s)
- Bernadette C Young
- Correspondence: Bernadette Young, Nuffield Department of Medicine, University of Oxford, John Radcliffe Hospital, Oxford OX3 9DU, UK ()
| | - Stephen J Bush
- Experimental Medicine Division, Nuffield Department of Medicine, University of Oxford, John Radcliffe Hospital, Oxford, United Kingdom
| | - Sam Lipworth
- Experimental Medicine Division, Nuffield Department of Medicine, University of Oxford, John Radcliffe Hospital, Oxford, United Kingdom
| | - Sophie George
- Experimental Medicine Division, Nuffield Department of Medicine, University of Oxford, John Radcliffe Hospital, Oxford, United Kingdom
| | - Kate E Dingle
- Experimental Medicine Division, Nuffield Department of Medicine, University of Oxford, John Radcliffe Hospital, Oxford, United Kingdom
| | - Nick Sanderson
- Experimental Medicine Division, Nuffield Department of Medicine, University of Oxford, John Radcliffe Hospital, Oxford, United Kingdom
| | - Alice Brankin
- Experimental Medicine Division, Nuffield Department of Medicine, University of Oxford, John Radcliffe Hospital, Oxford, United Kingdom
| | - Timothy Walker
- Oxford University Clinical Research Unit, Ho Chi Minh City, Vietnam
| | - Srilakshmi Sharma
- Oxford Eye Hospital, Oxford University Hospitals NHS Foundation Trust, John Radcliffe Hospital, Oxford, United Kingdom
| | - James Leong
- Oxford Eye Hospital, Oxford University Hospitals NHS Foundation Trust, John Radcliffe Hospital, Oxford, United Kingdom
| | - Puneet Plaha
- Nuffield Department of Surgical Sciences, University of Oxford, John Radcliffe Hospital, Oxford, United Kingdom
| | - Monika Hofer
- Department of Neuropathology, Oxford University Hospitals NHS Foundation Trust, John Radcliffe Hospital, Oxford, United Kingdom
| | - Peter Chiodini
- Hospital of Tropical Diseases and the London School of Hygiene and Tropical Medicine London, London, United Kingdom
| | - B Gottstein
- Institute for Infectious Diseases, University of Bern, Bern, Switzerland
| | - Lavinia Furrer
- Institute for Infectious Diseases, University of Bern, Bern, Switzerland
| | - Derrick Crook
- Experimental Medicine Division, Nuffield Department of Medicine, University of Oxford, John Radcliffe Hospital, Oxford, United Kingdom
- Microbiology and Infectious Diseases Department, Oxford University Hospitals NHS Foundation Trust, John Radcliffe Hospital, Oxford, United Kingdom
- National Institute for Health Research Oxford Biomedical Research Centre, Oxford, United Kingdom
| | | |
Collapse
|
6
|
Nizzero D, Tang N, Leong J. A novel technique for proximal interphalangeal joint fracture-dislocations: the second toe middle phalanx osteochondral graft. J Hand Surg Eur Vol 2021; 46:941-945. [PMID: 34256617 DOI: 10.1177/17531934211029225] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
Many different surgical techniques have been used to treat unstable dorsal proximal interphalangeal joint fracture-dislocations. The authors have used the base of the middle phalanx of the second toe base as an alternative autograft to treat this type of injury. This retrospective study assessed the clinical outcomes of this procedure in 11 patients. Range of motion, grip strength, Disability of the Arm, Shoulder and Hand score and donor site morbidity were assessed at regular intervals postoperatively. Nine patients had acute injuries and two had chronic injuries. The mean range of motion in the proximal interphalangeal joint at final review was 65° for patients with acute injuries and 41° for patients with chronic injuries. Other outcomes were satisfactory and there were no complications.Level of evidence: IV.
Collapse
Affiliation(s)
- Danielle Nizzero
- Department of Plastic & Reconstructive Surgery, Monash Health, Dandenong, VIC, Australia
| | - Nicholas Tang
- Department of Plastic & Reconstructive Surgery, Monash Health, Dandenong, VIC, Australia
| | - James Leong
- Department of Plastic & Reconstructive Surgery, Monash Health, Dandenong, VIC, Australia
| |
Collapse
|
7
|
Soumyanarayanan U, Choong M, Leong J, Lumpkin MM, Rasi G, Skerritt JH, Vogel S, Lim JCW. The COVID-19 crisis as an opportunity to strengthen global regulatory coordination for sustained enhanced access to diagnostics and therapeutics. Clin Transl Sci 2020; 14:777-780. [PMID: 33314667 PMCID: PMC8212715 DOI: 10.1111/cts.12954] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2020] [Revised: 12/10/2020] [Accepted: 12/10/2020] [Indexed: 11/28/2022] Open
Affiliation(s)
- Uttara Soumyanarayanan
- Centre of Regulatory Excellence (CoRE), Duke-NUS Medical School, Singapore City, Singapore
| | - Mimi Choong
- Health Sciences Authority (HSA), Singapore City, Singapore
| | - James Leong
- Centre of Regulatory Excellence (CoRE), Duke-NUS Medical School, Singapore City, Singapore
| | | | | | | | - Silke Vogel
- Centre of Regulatory Excellence (CoRE), Duke-NUS Medical School, Singapore City, Singapore
| | - John C W Lim
- Centre of Regulatory Excellence (CoRE), Duke-NUS Medical School, Singapore City, Singapore.,SingHealth Duke-NUS Global Health Institute (SDGHI), Singapore City, Singapore.,Consortium for Clinical Research & Innovation Singapore (CRIS), Singapore City, Singapore
| |
Collapse
|
8
|
Khan F, Sivaraj E, Black A, Hardikar A, Bhattarai K, Leong J, Macfadyen R. The Evolution of Symptomatic or Asymptomatic Atrial Fibrillation Following Treatment of Surgical Mitral Valve Disease by Repair or Bioprosthetic Replacement. Heart Lung Circ 2019. [DOI: 10.1016/j.hlc.2019.06.226] [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: 10/26/2022]
|
9
|
Halpern J, Thirumavalavan N, Kohn T, Patel A, Leong J, Lamb D, Ramasamy R. Semen parameters among adolescent males undergoing fertility preservation in an international cohort. Fertil Steril 2018. [DOI: 10.1016/j.fertnstert.2018.07.092] [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: 11/28/2022]
|
10
|
Lo CH, Nothdurft SH, Park HS, Paul E, Leong J. Distraction ligamentotaxis for complex proximal interphalangeal joint fracture dislocations: a clinical study and the modified pins rubber band traction system revisited. Burns Trauma 2018; 6:23. [PMID: 30094267 PMCID: PMC6081902 DOI: 10.1186/s41038-018-0124-1] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/21/2018] [Accepted: 07/03/2018] [Indexed: 11/10/2022]
Abstract
Background The purpose of this study is to present our experience with the modified pins and rubber band traction system, discuss problems encountered, and make recommendations to optimize outcomes. Methods Data was collected prospectively from November 2013 to March 2017 at a tertiary referral hospital in Melbourne, Australia. Patients with closed complex proximal interphalangeal joint fracture dislocations that were considered unsuitable for other surgical options were included in the study. Patients underwent dynamic skeletal distraction using the modified (Deshmukh) pins rubber band traction system. Outcomes were measured using the Nominal Rating Scale for pain; Disabilities of the Arm, Shoulder, and Hand (DASH) score; active and passive range of motion; patient rating scale; and complications. Results Twenty patients underwent the procedure, and 19 were included in analyses. At the final follow-up assessment, an average of 62° and 77° was achieved for proximal interphalangeal joint active and passive range of motion, respectively. Pain levels were low (median score of 0 at rest and 1 ranging, out of 10). Four patients suffered minor pin site infections. Conclusion Distraction ligamentotaxis is a useful part of the armamentarium, especially in the absence of more suitable procedures. It is important to select appropriate patients, educate, and ensure adherence to postoperative therapy. Employing the Deshmukh frame modification streamlines the theatre processes, and removal of wires at approximately 4 weeks minimizes risk of pin site infection.
Collapse
Affiliation(s)
- Cheng Hean Lo
- 1Department of Plastic and Reconstructive Surgery, Monash Health (Dandenong Hospital), 135 David St, Dandenong, Victoria 3175 Australia
| | - Simone H Nothdurft
- 2Monash Health (Dandenong Hospital), 135 David St, Dandenong, Victoria 3175 Australia
| | - Hye-Sung Park
- 1Department of Plastic and Reconstructive Surgery, Monash Health (Dandenong Hospital), 135 David St, Dandenong, Victoria 3175 Australia
| | - Eldho Paul
- 3Department of Epidemiology and Preventive Medicine, School of Public Health and Preventive Medicine, Monash University, 553 St Kilda Road, Melbourne, Victoria 3004 Australia
| | - James Leong
- 1Department of Plastic and Reconstructive Surgery, Monash Health (Dandenong Hospital), 135 David St, Dandenong, Victoria 3175 Australia.,4Department of Surgery, Monash University, Wellington Road, Clayton, Victoria 3800 Australia
| |
Collapse
|
11
|
Kovitwanichkanont T, Naidoo P, Guio-Aguilar P, Leong J. Hibernoma: a rare benign soft tissue tumour resembling liposarcoma. BJR Case Rep 2018; 4:20170067. [PMID: 31489209 PMCID: PMC6711274 DOI: 10.1259/bjrcr.20170067] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2017] [Revised: 01/24/2018] [Accepted: 01/27/2018] [Indexed: 12/25/2022] Open
Abstract
Hibernoma is a rare benign soft tissue tumour that can mimic a liposarcoma on
radiographic imaging. Our case series review illustrates the clinical
presentation and radiographic appearances of four patients with histologically
confirmed hibernoma. Hibernoma is usually hypointense relative to subcutaneous
fat on T1 weighted MRI and demonstrates partial fat suppression on
fat-saturated sequences. Large intratumoral vessels likely support the diagnosis
of hibernoma but are not invariably present. Fludeoxyglucose avidity on PET scan
is not beneficial in distinguishing hibernoma from soft tissue malignancy
because of its inherent, metabolically active property. Owing to the
radiographic heterogeneity of hibernoma, it is currently not possible to
diagnose hibernoma based on imaging characteristics alone. Given the excellent
prognosis of hibernoma with marginal excision alone, an appreciation of the
radiographic features is helpful in the appropriate pre-operative workup of soft
tissue tumours.
Collapse
Affiliation(s)
- Tom Kovitwanichkanont
- Department of Rheumatology, Monash Health, Melbourne, VIC, Australia.,Department of Dermatology, Monash Health, Melbourne, VIC, Australia.,University of Sydney, Sydney, NSW, Australia
| | - Parm Naidoo
- Department of Radiology, Monash Health, Melbourne, VIC, Australia.,Monash University, Melbourne, VIC, Australia.,University of Melbourne, Melbourne, VIC, Australia
| | - Pedro Guio-Aguilar
- Department of Plastic Surgery and Reconstructive Surgery, Monash Health, Melbourne, VIC, Australia
| | - James Leong
- Monash University, Melbourne, VIC, Australia.,Department of Plastic Surgery and Reconstructive Surgery, Monash Health, Melbourne, VIC, Australia
| |
Collapse
|
12
|
McAuslane N, Leong J, Liberti L, Walker S. The Benefit-Risk Assessment of Medicines: Experience of a Consortium of Medium-Sized Regulatory Authorities. Ther Innov Regul Sci 2017; 51:635-644. [DOI: 10.1177/2168479017696260] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
|
13
|
Leong J, Huprikar S, Schiano T. Outcomes of spontaneous bacterial peritonitis in liver transplant recipients with allograft failure. Transpl Infect Dis 2017; 18:545-51. [PMID: 27261101 DOI: 10.1111/tid.12565] [Citation(s) in RCA: 2] [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: 08/25/2015] [Revised: 01/30/2016] [Accepted: 03/19/2016] [Indexed: 12/20/2022]
Abstract
BACKGROUND Spontaneous bacterial peritonitis (SBP) carries appreciable morbidity and mortality in the pre-liver transplant (LT) setting. However, the occurrence of SBP and its consequences in the post-LT setting have not been well characterized. METHODS This is a retrospective study of SBP occurring in post-LT patients between January 2007 and December 2012. Outcomes were compared to a cohort of post-LT patients with allograft failure and ascites without SBP. RESULTS The most common indication for liver transplantation in this cohort was hepatitis C. A total of 29 episodes of SBP in 21 patients were identified. Escherichia coli (19%) and Klebsiella pneumoniae (10%) were the most frequent pathogens identified. Six patients died during their first episode of SBP. Ten patients were eventually listed for liver re-transplantation (re-LT) after their first episode of SBP; 5 of these patients were transplanted and the other 5 died. Of the 5 who were transplanted, 2 died shortly after re-transplant, and 3 are still alive. The cause of death in the majority of patients was infection (83.3%). The median time from onset of ascites to death was 214 days (range: 10-1085 days) and from the first episode of SBP to death was 50.5 days (range: 4-549 days). In contrast, the median time from onset of ascites to death in patients with allograft failure and ascites without SBP was 331.5 days (45-2400 days). CONCLUSIONS Allograft failure with ascites is a poor prognostic factor and these patients should be considered high risk for re-LT. SBP may accelerate the time to mortality.
Collapse
Affiliation(s)
- J Leong
- Division of Liver Diseases, Department of Medicine, The Icahn School of Medicine at Mount Sinai, New York, New York, USA
| | - S Huprikar
- Division of Infectious Diseases, Department of Medicine, The Icahn School of Medicine at Mount Sinai, New York, New York, USA
| | - T Schiano
- Division of Liver Diseases, Department of Medicine, The Icahn School of Medicine at Mount Sinai, New York, New York, USA
| |
Collapse
|
14
|
Ahmadi I, Herle P, Hunter-Smith D, Leong J, Rozen W, Miller G. End-to-End versus End-to-Side Microvascular Anastomosis: A Meta-analysis of Free Flap Outcomes. J Reconstr Microsurg 2017; 33:402-411. [DOI: 10.1055/s-0037-1599099] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Abstract
Background Optimal outcomes in microsurgery have been attributed to a range of factors, with performing of end-to-end (ETE) versus end-to-side (ETS) influencing anastomotic complications and flap outcomes.
Methods A systematic review of the literature and meta-analysis was undertaken to evaluate the relative risks of anastomotic complications with ETE versus ETS approaches, for arterial and venous anastomoses looking at risk ratios (RRs) for thrombosis and overall flap failure.
Results RRs of thrombosis and flap failure in ETS versus ETE venous anastomosis groups were 1.30 (95% confidence interval [CI]: 0.53–3.21) and 1.50 (95% CI: 0.85–2.67), respectively. The RRs of thrombosis and flap failure in ETS versus ETE arterial anastomosis groups were 1.04 (95% CI: 0.32–3.35) and 1.04 (95% CI: 0.72–1.48), respectively.
Conclusion Differences in rates of thrombosis and flap failure between ETE and ETS venous and arterial anastomoses are marginal and nonsignificant. As such, the type of anastomotic technique is best decided on a case-by-case basis, dependent on anatomical, surgical, and patient factors.
Collapse
Affiliation(s)
- Iraj Ahmadi
- Department of Plastic and Reconstructive Surgery, Frankston Hospital, Peninsula Health, Victoria, Australia
- Department of Surgery, School of Clinical Science at Monash Health, Monash University, Victoria, Australia
| | - Pradyumna Herle
- Department of Surgery, School of Clinical Science at Monash Health, Monash University, Victoria, Australia
| | - David Hunter-Smith
- Department of Plastic and Reconstructive Surgery, Frankston Hospital, Peninsula Health, Victoria, Australia
- Department of Surgery, School of Clinical Science at Monash Health, Monash University, Victoria, Australia
| | - James Leong
- Department of Surgery, School of Clinical Science at Monash Health, Monash University, Victoria, Australia
| | - Warren Rozen
- Department of Plastic and Reconstructive Surgery, Frankston Hospital, Peninsula Health, Victoria, Australia
- Department of Surgery, School of Clinical Science at Monash Health, Monash University, Victoria, Australia
- Department of Surgery, School of Medicine and Dentistry, James Cook University Clinical School, Queensland, Australia
| | - George Miller
- Department of Plastic and Reconstructive Surgery, Frankston Hospital, Peninsula Health, Victoria, Australia
- Department of Surgery, School of Clinical Science at Monash Health, Monash University, Victoria, Australia
| |
Collapse
|
15
|
Walker S, McAuslane N, Liberti L, Leong J, Salek S. A Universal Framework for the Benefit-Risk Assessment of Medicines: Is This the Way Forward? Ther Innov Regul Sci 2015; 49:17-25. [PMID: 30222450 DOI: 10.1177/2168479014547421] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
A universal framework for the evaluation of the benefit-risk assessment of medicines during development by pharmaceutical companies and in the regulatory review by regulatory authorities is considered of value, as it would result in the systematic structured approach to support transparency in decision making. Several organizations have developed frameworks over the past few years, including those recommended by pharmaceutical companies such as the PhRMA BRAT (Pharmaceutical Research and Manufacturers of America Benefit-Risk Action Team) and the BRAIN (Benefit-Risk Assessment in New and Old Drugs) as well as frameworks advanced by regulatory agencies, including the FDA 5-step framework and the EMA PrOACT-URL. However, a review of the criteria-including logical soundness, comprehensiveness, acceptability of results, practicality, specificity and sensitivity, presentation (visualization), and scope proposed for the development of a universal framework-demonstrated that all these different frameworks described can be incorporated into UMBRA (Universal Methodology for Benefit-Risk Assessment).
Collapse
Affiliation(s)
- Stuart Walker
- 1 Centre for Innovation in Regulatory Science, London, United Kingdom.,2 School of Pharmacy and Pharmaceutical Sciences, Cardiff University, Cardiff, Wales, United Kingdom
| | - Neil McAuslane
- 1 Centre for Innovation in Regulatory Science, London, United Kingdom
| | - Lawrence Liberti
- 1 Centre for Innovation in Regulatory Science, London, United Kingdom
| | - James Leong
- 2 School of Pharmacy and Pharmaceutical Sciences, Cardiff University, Cardiff, Wales, United Kingdom.,3 Health Sciences Authority, Singapore
| | - Sam Salek
- 2 School of Pharmacy and Pharmaceutical Sciences, Cardiff University, Cardiff, Wales, United Kingdom
| |
Collapse
|
16
|
Wong W, Leong J, Rao J. A retrospective audit on pre-operative optimization of anaemia in elective surgical patients at the Countess of Chester Hospital. Int J Surg 2015. [DOI: 10.1016/j.ijsu.2015.07.072] [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: 11/26/2022]
|
17
|
Leong J, Walker S, Salek S. A practical approach to communicating benefit-risk decisions of medicines to stakeholders. Front Pharmacol 2015; 6:99. [PMID: 26124720 PMCID: PMC4463867 DOI: 10.3389/fphar.2015.00099] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2015] [Accepted: 04/21/2015] [Indexed: 11/24/2022] Open
Abstract
Purpose: The importance of a framework for a systematic structured assessment of the benefits and risks has been established, but in addition, it is necessary that the benefit-risk decisions and the processes to derive those decisions are documented and communicated to various stakeholders for accountability. Hence there is now a need to find appropriate tools to enhance communication between regulators and other stakeholders, in a manner that would uphold transparency, consistency and standards. Methods: A retrospective, non-comparative study was conducted to determine the applicability and practicality of a summary template in documenting benefit-risk assessment and communicating benefit-risk balance and conclusions for reviewers to other stakeholders. The benefit-risk (BR) Summary Template and its User Manual was evaluated by 12 reviewers within a regulatory agency in Singapore, the Health Sciences Authority (HSA). Results: The BR Summary Template was found to be adequate in documenting benefits, risks, relevant summaries and conclusions, while the User Manual was useful in guiding the reviewer in completing the template. The BR Summary Template was also considered a useful tool for communicating benefit-risk decisions to a variety of stakeholders. Conclusions: The use of a template may be of value for the communicating benefit-risk assessment of medicines to stakeholders.
Collapse
Affiliation(s)
- James Leong
- Center of Regulatory Excellence, Duke-NUS Graduate Medical School Singapore, Singapore
| | - Stuart Walker
- Centre for Innovation in Regulatory Science London, UK
| | - Sam Salek
- Department of Pharmacy, School of Life and Medical Sciences, University of Hertfordshire Hatfield, UK ; Institute for Medicines Development Cardiff, UK
| |
Collapse
|
18
|
Park HS, Hensman C, Leong J. Thoracic sympathetic nerve reconstruction for compensatory hyperhidrosis: the Melbourne technique. Ann Transl Med 2014; 2:45. [PMID: 25333020 DOI: 10.3978/j.issn.2305-5839.2014.04.11] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 04/19/2014] [Accepted: 04/22/2014] [Indexed: 11/14/2022]
Abstract
BACKGROUND Compensatory hyperhidrosis (CH) is a potential complication following endoscopic thoracic sympathectomy (ETS) in the management of primary hyperhidrosis. CH is considered a permanent condition with significant psychosocial impacts but with few treatment options. Various reversal surgical techniques, aimed at reconstituting sympathetic pathways, have been developed but results have been inconsistent. OBJECTIVE We present two case reports of a novel technique of reversal surgery, the Melbourne technique, which was employed to treat severe CH that developed within 3-5 months following ETS. Both patients were followed-up to 8 years. METHODS The Melbourne technique employs an endoscopic approach to expose previously sympathectomized or sympathotomized thoracic sympathetic chains. In these two cases it was performed on the right side only. Instead of an interpositional nerve graft, an autogenous vein graft was simultaneously harvested and used as a nerve conduit to bridge the secondary nerve defect after neuroma excision. Long-term outcomes were assessed using the dermatology life quality index (DLQI) and the quality of life (QoL) questionnaires, which are validated for hyperhidrosis. RESULTS In both cases, patients reported postoperative improvements in QoL scores. However, the improvement was more marked in one case compared with the other. There were no significant immediate and long-term postoperative complications. CONCLUSIONS The Melbourne technique shows promise as an alternative to interpositional nerve grafts or nerve transfers employed in other endoscopic reversal surgeries for CH.
Collapse
Affiliation(s)
- Hye-Sung Park
- 1 Plastic & Reconstructive Surgery, Monash Health, Melbourne, Australia ; 2 LapSurgery Australia, Melbourne, Australia
| | - Chris Hensman
- 1 Plastic & Reconstructive Surgery, Monash Health, Melbourne, Australia ; 2 LapSurgery Australia, Melbourne, Australia
| | - James Leong
- 1 Plastic & Reconstructive Surgery, Monash Health, Melbourne, Australia ; 2 LapSurgery Australia, Melbourne, Australia
| |
Collapse
|
19
|
Affiliation(s)
- Warren Rozen
- Department of Surgery, School of Medicine and Dentistry, James Cook University Clinical School, Douglas, Townsville, Queensland, Australia
| | - James Leong
- Department of Plastic and Reconstructive Surgery, Dandenong Hospital, Monash Health, Dandenong, Victoria, Australia
| | - Iraj Ahmadi
- Department of Plastic and Reconstructive Surgery, Dandenong Hospital, Monash Health, Dandenong, Victoria, Australia
| | - Pradyumna Herle
- Department of Medicine, Melbourne University, Parkville, VIC 3052, Australia
| |
Collapse
|
20
|
Eu E, Leong J, Allen J, Haaland B, Cheow P, Chung A, Ooi L, Chow P. P0129 Hepatitis C patients have worse outcomes than hepatitis B patients following surgical resection for hepatocellular carcinoma both within and outside of the AASLD criteria. Eur J Cancer 2014. [DOI: 10.1016/j.ejca.2014.03.173] [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
|
Leong J, McAuslane N, Walker S, Salek S. Is there a need for a universal benefit-risk assessment framework for medicines? Regulatory and industry perspectives. Pharmacoepidemiol Drug Saf 2013; 22:1004-12. [DOI: 10.1002/pds.3464] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2012] [Revised: 04/02/2013] [Accepted: 04/29/2013] [Indexed: 11/06/2022]
Affiliation(s)
- James Leong
- School of Pharmacy and Pharmaceutical Sciences; Cardiff University; Cardiff UK
| | | | - Stuart Walker
- School of Pharmacy and Pharmaceutical Sciences; Cardiff University; Cardiff UK
- Centre for Innovation in Regulatory Science; London UK
| | - Sam Salek
- School of Pharmacy and Pharmaceutical Sciences; Cardiff University; Cardiff UK
| |
Collapse
|
22
|
De Silva I, Rozen WM, Ramakrishnan A, Mirkazemi M, Baillieu C, Ptasznik R, Leong J. Achieving adequate margins in ameloblastoma resection: the role for intra-operative specimen imaging. Clinical report and systematic review. PLoS One 2012; 7:e47897. [PMID: 23094099 PMCID: PMC3477138 DOI: 10.1371/journal.pone.0047897] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.7] [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: 04/18/2012] [Accepted: 09/18/2012] [Indexed: 11/18/2022] Open
Abstract
Background Ameloblastoma is a locally aggressive odontogenic neoplasm. With local recurrence rates reaching 90%, only completeness of excision can facilitate cure. Surgical clearance has widely been based on pre-operative imaging to guide operative excision margins, however use of intra-operative specimen x-ray or frozen-section has been sought to improve clearance rates, and advanced imaging technologies in this role have been proposed. This manuscript aims to quantify the evidence for evaluating intra-operative resection margins and present the current standard in this role. Method The current study comprises the first reported comparison of imaging modalities for assessing ameloblastoma margins. A case is presented in which margins are assessed with each of clinical assessment based on preoperative imaging, intra-operative specimen x-ray, intra-operative specimen computed tomography (CT) and definitive histology. Each modality is compared quantitatively. These results are compared to the literature through means of systematic review of current evidence. Results A comparative study highlights the role for CT imaging over plain radiography. With no other comparative studies and a paucity of high level evidence establishing a role for intra-operative margin assessment in ameloblastoma in the literature, only level 4 evidence supporting the use of frozen section and specimen x-ray, and only one level 4 study assesses intra-operative CT. Conclusion The current study suggests that intra-operative specimen CT offers an improvement over existing techniques in this role. While establishing a gold-standard will require higher level comparative studies, the use of intra-operative CT can facilitate accurate single-stage resection.
Collapse
Affiliation(s)
- Inoka De Silva
- Department of Plastic and Reconstructive Surgery, Dandenong Hospital, Southern Health, David St, Dandenong, Victoria, Australia
- Department of Surgery, Faculty of Medicine, Monash University, Clayton, Victoria, Australia
| | - Warren M. Rozen
- Department of Plastic and Reconstructive Surgery, Dandenong Hospital, Southern Health, David St, Dandenong, Victoria, Australia
- Department of Surgery, Faculty of Medicine, Monash University, Clayton, Victoria, Australia
- * E-mail:
| | - Anand Ramakrishnan
- Department of Plastic and Reconstructive Surgery, Dandenong Hospital, Southern Health, David St, Dandenong, Victoria, Australia
- Department of Surgery, Faculty of Medicine, Monash University, Clayton, Victoria, Australia
| | - Mansoor Mirkazemi
- Department of Plastic and Reconstructive Surgery, Dandenong Hospital, Southern Health, David St, Dandenong, Victoria, Australia
- Department of Surgery, Faculty of Medicine, Monash University, Clayton, Victoria, Australia
| | - Charles Baillieu
- Department of Plastic and Reconstructive Surgery, Dandenong Hospital, Southern Health, David St, Dandenong, Victoria, Australia
- Department of Surgery, Faculty of Medicine, Monash University, Clayton, Victoria, Australia
| | - Ronnie Ptasznik
- Department of Radiology, Dandenong Hospital, Southern Health, David St, Dandenong, Victoria, Australia
| | - James Leong
- Department of Plastic and Reconstructive Surgery, Dandenong Hospital, Southern Health, David St, Dandenong, Victoria, Australia
- Department of Surgery, Faculty of Medicine, Monash University, Clayton, Victoria, Australia
| |
Collapse
|
23
|
Rozen WM, Ting JWC, Leung M, Wu T, Ying D, Leong J. Advancing image-guided surgery in microvascular mandibular reconstruction: combining bony and vascular imaging with computed tomography-guided stereolithographic bone modeling. Plast Reconstr Surg 2012; 130:227e-229e. [PMID: 22743942 DOI: 10.1097/prs.0b013e318255028e] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Affiliation(s)
- Warren M Rozen
- Department of Plastic and Reconstructive Surgery, Dandenong Hospital, Southern Health, Dandenong, Victoria, Australia, Department of Surgery, Faculty of Medicine, Monash University, Clayton, Victoria, Australia
| | | | | | | | | | | |
Collapse
|
24
|
Rathinam V, Kailasan Vanaja S, Waggoner L, Sokolovska A, Becker C, Stuart L, Leong J, Fitzgerald K. O008 Type I interferons license caspase-11-dependent NLRP3 inflammasome activation by Gram-negative bacteria. Cytokine 2012. [DOI: 10.1016/j.cyto.2012.06.035] [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: 10/28/2022]
|
25
|
Affiliation(s)
- Warren Rozen
- Department of Plastic and Reconstructive Surgery, Dandenong Hospital, Southern Health, Dandenong, Victoria, Australia
- Department of Surgery, Faculty of Medicine, Monash University, Clayton, Victoria, Australia
| | - Xuan Ye
- Department of Plastic and Reconstructive Surgery, Dandenong Hospital, Southern Health, Dandenong, Victoria, Australia
- Department of Surgery, Faculty of Medicine, Monash University, Clayton, Victoria, Australia
| | - Simon Overstall
- Department of Plastic and Reconstructive Surgery, Dandenong Hospital, Southern Health, Dandenong, Victoria, Australia
- Department of Surgery, Faculty of Medicine, Monash University, Clayton, Victoria, Australia
| | - James Leong
- Department of Plastic and Reconstructive Surgery, Dandenong Hospital, Southern Health, Dandenong, Victoria, Australia
- Department of Surgery, Faculty of Medicine, Monash University, Clayton, Victoria, Australia
| |
Collapse
|
26
|
Abstract
PURPOSE To report a case of non-traumatic subperiosteal hemorrhage (NTSOH) secondary to barotrauma. MATERIAL AND METHODS Observational case report. RESULTS A 42-year-old female presented with right proptosis with bilateral petechial lid hemorrhages, chemosis and diplopia following scuba diving. This occurred in the context of a tight facemask resulting in 'mask squeeze', and performance of Valsalva maneuver to equalize ear pressure. Clinically, there were no signs of optic nerve involvement. Computed tomography (CT) demonstrated signs consistent with right subperiosteal hematoma adjacent to the orbital roof with inferolateral displacement of the superior rectus. Patient recovered well after being admitted for intravenous dexamethasone without surgical intervention. CONCLUSION NTSOH from barotrauma can result from 'mask squeeze' under a tight-fitting mask and exacerbated by use of Valsalva maneuvers. This may be prevented with frequent pressure equalization during diving.
Collapse
Affiliation(s)
- David Woo
- Sydney Eye Hospital , Sydney, Australia.
| | | | | | | | | |
Collapse
|
27
|
Mohan K, Brager N, Rabin H, Leong J, Meloff L, Nyberg L. 332 The prevalence of eating disordered attitudes and behaviour in the cystic fibrosis lung transplant population. J Cyst Fibros 2012. [DOI: 10.1016/s1569-1993(12)60500-1] [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: 11/15/2022]
|
28
|
Malhotra S, Brager N, Rabin H, Parkins M, Hertzsprung M, Leong J. WS12.1 The prevalence of substance abuse in cystic fibrosis. J Cyst Fibros 2012. [DOI: 10.1016/s1569-1993(12)60085-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: 10/28/2022]
|
29
|
Rozen WM, Fox C, Leong J, Overstall S. Re: Local recurrence of an oral squamous cell carcinoma confined to a free flap. ANZ J Surg 2012; 82:285. [PMID: 22510196 DOI: 10.1111/j.1445-2197.2012.06011.x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
|
30
|
Abadie J, Abbott BP, Abbott R, Abernathy M, Accadia T, Acernese F, Adams C, Adhikari R, Ajith P, Allen B, Allen G, Amador Ceron E, Amin RS, Anderson SB, Anderson WG, Antonucci F, Arain MA, Araya M, Aronsson M, Arun KG, Aso Y, Aston S, Astone P, Atkinson DE, Aufmuth P, Aulbert C, Babak S, Baker P, Ballardin G, Ballinger T, Ballmer S, Barker D, Barnum S, Barone F, Barr B, Barriga P, Barsotti L, Barsuglia M, Barton MA, Bartos I, Bassiri R, Bastarrika M, Bauchrowitz J, Bauer TS, Behnke B, Beker MG, Belletoile A, Benacquista M, Bertolini A, Betzwieser J, Beveridge N, Beyersdorf PT, Bigotta S, Bilenko IA, Billingsley G, Birch J, Birindelli S, Biswas R, Bitossi M, Bizouard MA, Black E, Blackburn JK, Blackburn L, Blair D, Bland B, Blom M, Boccara C, Bock O, Bodiya TP, Bondarescu R, Bondu F, Bonelli L, Bonnand R, Bork R, Born M, Bose S, Bosi L, Bouhou B, Boyle M, Braccini S, Bradaschia C, Brady PR, Braginsky VB, Brau JE, Breyer J, Bridges DO, Brillet A, Brinkmann M, Brisson V, Britzger M, Brooks AF, Brown DA, Budzyński R, Bulik T, Bulten HJ, Buonanno A, Burguet-Castell J, Burmeister O, Buskulic D, Buy C, Byer RL, Cadonati L, Cagnoli G, Cain J, Calloni E, Camp JB, Campagna E, Campsie P, Cannizzo J, Cannon KC, Canuel B, Cao J, Capano C, Carbognani F, Caudill S, Cavaglià M, Cavalier F, Cavalieri R, Cella G, Cepeda C, Cesarini E, Chalermsongsak T, Chalkley E, Charlton P, Chassande-Mottin E, Chelkowski S, Chen Y, Chincarini A, Christensen N, Chua SSY, Chung CTY, Clark D, Clark J, Clayton JH, Cleva F, Coccia E, Colacino CN, Colas J, Colla A, Colombini M, Conte R, Cook D, Corbitt TR, Cornish N, Corsi A, Costa CA, Coulon JP, Coward D, Coyne DC, Creighton JDE, Creighton TD, Cruise AM, Culter RM, Cumming A, Cunningham L, Cuoco E, Dahl K, Danilishin SL, Dannenberg R, D’Antonio S, Danzmann K, Das K, Dattilo V, Daudert B, Davier M, Davies G, Davis A, Daw EJ, Day R, Dayanga T, De Rosa R, DeBra D, Degallaix J, del Prete M, Dergachev V, DeRosa R, DeSalvo R, Devanka P, Dhurandhar S, Di Fiore L, Di Lieto A, Di Palma I, Di Paolo Emilio M, Di Virgilio A, Díaz M, Dietz A, Donovan F, Dooley KL, Doomes EE, Dorsher S, Douglas ESD, Drago M, Drever RWP, Driggers JC, Dueck J, Dumas JC, Dwyer S, Eberle T, Edgar M, Edwards M, Effler A, Ehrens P, Ely G, Engel R, Etzel T, Evans M, Evans T, Fafone V, Fairhurst S, Fan Y, Farr BF, Fazi D, Fehrmann H, Feldbaum D, Ferrante I, Fidecaro F, Finn LS, Fiori I, Flaminio R, Flanigan M, Flasch K, Foley S, Forrest C, Forsi E, Fotopoulos N, Fournier JD, Franc J, Frasca S, Frasconi F, Frede M, Frei M, Frei Z, Freise A, Frey R, Fricke TT, Friedrich D, Fritschel P, Frolov VV, Fulda P, Fyffe M, Galimberti M, Gammaitoni L, Garofoli JA, Garufi F, Gemme G, Genin E, Gennai A, Ghosh S, Giaime JA, Giampanis S, Giardina KD, Giazotto A, Gill C, Goetz E, Goggin LM, González G, Goßler S, Gouaty R, Graef C, Granata M, Grant A, Gras S, Gray C, Greenhalgh RJS, Gretarsson AM, Greverie C, Grosso R, Grote H, Grunewald S, Guidi GM, Gustafson EK, Gustafson R, Hage B, Hall P, Hallam JM, Hammer D, Hammond G, Hanks J, Hanna C, Hanson J, Harms J, Harry GM, Harry IW, Harstad ED, Haughian K, Hayama K, Hayau JF, Hayler T, Heefner J, Heitmann H, Hello P, Heng IS, Heptonstall A, Hewitson M, Hild S, Hirose E, Hoak D, Hodge KA, Holt K, Hosken DJ, Hough J, Howell E, Hoyland D, Huet D, Hughey B, Husa S, Huttner SH, Huynh-Dinh T, Ingram DR, Inta R, Isogai T, Ivanov A, Jaranowski P, Johnson WW, Jones DI, Jones G, Jones R, Ju L, Kalmus P, Kalogera V, Kandhasamy S, Kanner J, Katsavounidis E, Kawabe K, Kawamura S, Kawazoe F, Kells W, Keppel DG, Khalaidovski A, Khalili FY, Khazanov EA, Kim H, King PJ, Kinzel DL, Kissel JS, Klimenko S, Kondrashov V, Kopparapu R, Koranda S, Kowalska I, Kozak D, Krause T, Kringel V, Krishnamurthy S, Krishnan B, Królak A, Kuehn G, Kullman J, Kumar R, Kwee P, Landry M, Lang M, Lantz B, Lastzka N, Lazzarini A, Leaci P, Leong J, Leonor I, Leroy N, Letendre N, Li J, Li TGF, Lin H, Lindquist PE, Lockerbie NA, Lodhia D, Lorenzini M, Loriette V, Lormand M, Losurdo G, Lu P, Luan J, Lubinski M, Lucianetti A, Lück H, Lundgren A, Machenschalk B, MacInnis M, Mageswaran M, Mailand K, Majorana E, Mak C, Maksimovic I, Man N, Mandel I, Mandic V, Mantovani M, Marchesoni F, Marion F, Márka S, Márka Z, Maros E, Marque J, Martelli F, Martin IW, Martin RM, Marx JN, Mason K, Masserot A, Matichard F, Matone L, Matzner RA, Mavalvala N, McCarthy R, McClelland DE, McGuire SC, McIntyre G, McIvor G, McKechan DJA, Meadors G, Mehmet M, Meier T, Melatos A, Melissinos AC, Mendell G, Menéndez DF, Mercer RA, Merill L, Meshkov S, Messenger C, Meyer MS, Miao H, Michel C, Milano L, Miller J, Minenkov Y, Mino Y, Mitra S, Mitrofanov VP, Mitselmakher G, Mittleman R, Moe B, Mohan M, Mohanty SD, Mohapatra SRP, Moraru D, Moreau J, Moreno G, Morgado N, Morgia A, Mors K, Mosca S, Moscatelli V, Mossavi K, Mours B, MowLowry C, Mueller G, Mukherjee S, Mullavey A, Müller-Ebhardt H, Munch J, Murray PG, Nash T, Nawrodt R, Nelson J, Neri I, Newton G, Nishida E, Nishizawa A, Nocera F, Nolting D, Ochsner E, O’Dell J, Ogin GH, Oldenburg RG, O’Reilly B, O’Shaughnessy R, Osthelder C, Ottaway DJ, Ottens RS, Overmier H, Owen BJ, Page A, Pagliaroli G, Palladino L, Palomba C, Pan Y, Pankow C, Paoletti F, Papa MA, Pardi S, Pareja M, Parisi M, Pasqualetti A, Passaquieti R, Passuello D, Patel P, Pathak D, Pedraza M, Pekowsky L, Penn S, Peralta C, Perreca A, Persichetti G, Pichot M, Pickenpack M, Piergiovanni F, Pietka M, Pinard L, Pinto IM, Pitkin M, Pletsch HJ, Plissi MV, Poggiani R, Postiglione F, Prato M, Predoi V, Price LR, Prijatelj M, Principe M, Prix R, Prodi GA, Prokhorov L, Puncken O, Punturo M, Puppo P, Quetschke V, Raab FJ, Rabeling DS, Radke T, Radkins H, Raffai P, Rakhmanov M, Rankins B, Rapagnani P, Raymond V, Re V, Reed CM, Reed T, Regimbau T, Reid S, Reitze DH, Ricci F, Riesen R, Riles K, Roberts P, Robertson NA, Robinet F, Robinson C, Robinson EL, Rocchi A, Roddy S, Röver C, Rolland L, Rollins J, Romano JD, Romano R, Romie JH, Rosińska D, Rowan S, Rüdiger A, Ruggi P, Ryan K, Sakata S, Sakosky M, Salemi F, Sammut L, Sancho de la Jordana L, Sandberg V, Sannibale V, Santamaría L, Santostasi G, Saraf S, Sassolas B, Sathyaprakash BS, Sato S, Satterthwaite M, Saulson PR, Savage R, Schilling R, Schnabel R, Schofield R, Schulz B, Schutz BF, Schwinberg P, Scott J, Scott SM, Searle AC, Seifert F, Sellers D, Sengupta AS, Sentenac D, Sergeev A, Shaddock D, Shapiro B, Shawhan P, Shoemaker DH, Sibley A, Siemens X, Sigg D, Singer A, Sintes AM, Skelton G, Slagmolen BJJ, Slutsky J, Smith JR, Smith MR, Smith ND, Somiya K, Sorazu B, Speirits FC, Sperandio L, Stein AJ, Stein LC, Steinlechner S, Steplewski S, Stochino A, Stone R, Strain KA, Strigin S, Stroeer A, Sturani R, Stuver AL, Summerscales TZ, Sung M, Susmithan S, Sutton PJ, Swinkels B, Talukder D, Tanner DB, Tarabrin SP, Taylor JR, Taylor R, Thomas P, Thorne KA, Thorne KS, Thrane E, Thüring A, Titsler C, Tokmakov KV, Toncelli A, Tonelli M, Torre O, Torres C, Torrie CI, Tournefier E, Travasso F, Traylor G, Trias M, Trummer J, Tseng K, Turner L, Ugolini D, Urbanek K, Vahlbruch H, Vaishnav B, Vajente G, Vallisneri M, van den Brand JFJ, Van Den Broeck C, van der Putten S, van der Sluys MV, van Veggel AA, Vass S, Vaulin R, Vavoulidis M, Vecchio A, Vedovato G, Veitch J, Veitch PJ, Veltkamp C, Verkindt D, Vetrano F, Viceré A, Villar A, Vinet JY, Vocca H, Vorvick C, Vyachanin SP, Waldman SJ, Wallace L, Wanner A, Ward RL, Was M, Wei P, Weinert M, Weinstein AJ, Weiss R, Wen L, Wen S, Wessels P, West M, Westphal T, Wette K, Whelan JT, Whitcomb SE, White DJ, Whiting BF, Wilkinson C, Willems PA, Williams L, Willke B, Winkelmann L, Winkler W, Wipf CC, Wiseman AG, Woan G, Wooley R, Worden J, Yakushin I, Yamamoto H, Yamamoto K, Yeaton-Massey D, Yoshida S, Yu PP, Yvert M, Zanolin M, Zhang L, Zhang Z, Zhao C, Zotov N, Zucker ME, Zweizig J. Publisher’s Note: Search for gravitational waves from compact binary coalescence in LIGO and Virgo data from S5 and VSR1 [Phys. Rev. D82, 102001 (2010)]. Int J Clin Exp Med 2012. [DOI: 10.1103/physrevd.85.089903] [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: 11/07/2022]
|
31
|
Abstract
PURPOSE To report an uncommon case of orbital gastrointestinal stromal tumor (GIST) metastasis. MATERIAL AND METHODS Observational case report. RESULTS A 65-year-old woman with metastatic GIST involving the left orbit with a history of two separate GIST nodules involving the stomach 6 years earlier. Computed tomography (CT) scan demonstrated a well-circumscribed enhancing lesion confined to the anterior orbit. Histopathology analysis of the tumor showed predominantly spindle cells with focal epithelioid forms. It also stained positive for c-KIT (CD117) on immunochemistry, confirming the diagnosis. Additional medical treatment was not required, and the patient was followed up regularly for disease recurrence. CONCLUSION GISTs typically occur as sporadic solitary tumors. In malignant cases, it usually metastasizes to the liver or other intraabdominal sites. Orbital involvement is extremely rare. This is the first case of metastatic GIST involving the anterior orbit with histopathological and immunochemical confirmation.
Collapse
Affiliation(s)
- David Woo
- Sydney Eye Hospital, Ophthalmology, 8 Macquarie Street, Sydney 2000, Australia.
| | | | | | | | | |
Collapse
|
32
|
Kwee MM, Rozen WM, Ting JW, Mirkazemi M, Leong J, Baillieu C. Total scalp reconstruction with bilateral anterolateral thigh flaps. Microsurgery 2012; 32:393-6. [DOI: 10.1002/micr.21954] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2011] [Revised: 11/26/2011] [Accepted: 12/12/2011] [Indexed: 11/06/2022]
|
33
|
Goldschlager R, Rozen WM, Ting JW, Leong J. The nomenclature of venous flow-through flaps: Updated classification and review of the literature. Microsurgery 2012; 32:497-501. [DOI: 10.1002/micr.21965] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2011] [Revised: 01/01/2012] [Accepted: 01/09/2012] [Indexed: 11/07/2022]
|
34
|
Kwee MM, Rozen WM, Ting JWC, Leong J, Mirkazemi M. Anastomotic failure with a ring anastomotic coupler due to disengagement of its rings. Microsurgery 2012; 32:336-7. [PMID: 22422513 DOI: 10.1002/micr.21961] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2011] [Revised: 12/08/2011] [Accepted: 12/28/2011] [Indexed: 11/10/2022]
|
35
|
Rozen WM, Ting JWC, Gilmour RF, Leong J. The arterialized saphenous venous flow-through flap with dual venous drainage. Microsurgery 2012; 32:281-8. [DOI: 10.1002/micr.21949] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2011] [Revised: 11/04/2011] [Accepted: 11/09/2011] [Indexed: 11/11/2022]
|
36
|
|
37
|
Woo C, Kong C, Chan Y, Wong C, Leong J, Lee C, Sorokin V. Reliable Procedure to Maintain RNA Quality During Laser Capture Microdissection of Human Aortic Smooth Muscle Cells. Heart Lung Circ 2012. [DOI: 10.1016/j.hlc.2012.05.664] [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: 11/26/2022]
|
38
|
Abadie J, Abbott BP, Abbott R, Abernathy M, Accadia T, Acernese F, Adams C, Adhikari R, Ajith P, Allen B, Allen GS, Ceron EA, Amin RS, Anderson SB, Anderson WG, Antonucci F, Arain MA, Araya MC, Aronsson M, Arun KG, Aso Y, Aston SM, Astone P, Atkinson D, Aufmuth P, Aulbert C, Babak S, Baker P, Ballardin G, Ballmer S, Barker D, Barnum S, Barone F, Barr B, Barriga P, Barsotti L, Barsuglia M, Barton MA, Bartos I, Bassiri R, Bastarrika M, Bauchrowitz J, Bauer TS, Behnke B, Beker MG, Belletoile A, Benacquista M, Bertolini A, Betzwieser J, Beveridge N, Beyersdorf PT, Bigotta S, Bilenko IA, Billingsley G, Birch J, Birindelli S, Biswas R, Bitossi M, Bizouard MA, Black E, Blackburn JK, Blackburn L, Blair D, Bland B, Blom M, Boccara C, Bock O, Bodiya TP, Bondarescu R, Bondu F, Bonelli L, Bonnand R, Bork R, Born M, Bose S, Bosi L, Bouhou B, Boyle M, Braccini S, Bradaschia C, Brady PR, Braginsky VB, Brau JE, Breyer J, Bridges DO, Brillet A, Brinkmann M, Brisson V, Britzger M, Brooks AF, Brown DA, Budzyński R, Bulik T, Bulten HJ, Buonanno A, Burguet-Castell J, Burmeister O, Buskulic D, Buy C, Byer RL, Cadonati L, Cagnoli G, Cain J, Calloni E, Camp JB, Campagna E, Campsie P, Cannizzo J, Cannon K, Canuel B, Cao J, Capano C, Carbognani F, Caride S, Caudill S, Cavaglià M, Cavalier F, Cavalieri R, Cella G, Cepeda C, Cesarini E, Chalermsongsak T, Chalkley E, Charlton P, Chassande-Mottin E, Chelkowski S, Chen Y, Chincarini A, Christensen N, Chua SSY, Chung CTY, Clark D, Clark J, Clayton JH, Cleva F, Coccia E, Colacino CN, Colas J, Colla A, Colombini M, Conte R, Cook D, Corbitt TR, Cornish N, Corsi A, Costa CA, Coulon JP, Coward DM, Coyne DC, Creighton JDE, Creighton TD, Cruise AM, Culter RM, Cumming A, Cunningham L, Cuoco E, Dahl K, Danilishin SL, Dannenberg R, D'Antonio S, Danzmann K, Das K, Dattilo V, Daudert B, Davier M, Davies G, Davis A, Daw EJ, Day R, Dayanga T, De Rosa R, DeBra D, Degallaix J, del Prete M, Dergachev V, DeRosa R, DeSalvo R, Devanka P, Dhurandhar S, Di Fiore L, Di Lieto A, Di Palma I, Di Paolo Emilio M, Di Virgilio A, Díaz M, Dietz A, Donovan F, Dooley KL, Doomes EE, Dorsher S, Douglas ESD, Drago M, Drever RWP, Driggers JC, Dueck J, Dumas JC, Eberle T, Edgar M, Edwards M, Effler A, Ehrens P, Engel R, Etzel T, Evans M, Evans T, Fafone V, Fairhurst S, Fan Y, Farr BF, Fazi D, Fehrmann H, Feldbaum D, Ferrante I, Fidecaro F, Finn LS, Fiori I, Flaminio R, Flanigan M, Flasch K, Foley S, Forrest C, Forsi E, Fotopoulos N, Fournier JD, Franc J, Frasca S, Frasconi F, Frede M, Frei M, Frei Z, Freise A, Frey R, Fricke TT, Friedrich D, Fritschel P, Frolov VV, Fulda P, Fyffe M, Galimberti M, Gammaitoni L, Garofoli JA, Garufi F, Gemme G, Genin E, Gennai A, Gholami I, Ghosh S, Giaime JA, Giampanis S, Giardina KD, Giazotto A, Gill C, Goetz E, Goggin LM, González G, Gorodetsky ML, Gossler S, Gouaty R, Graef C, Granata M, Grant A, Gras S, Gray C, Greenhalgh RJS, Gretarsson AM, Greverie C, Grosso R, Grote H, Grunewald S, Guidi GM, Gustafson EK, Gustafson R, Hage B, Hall P, Hallam JM, Hammer D, Hammond G, Hanks J, Hanna C, Hanson J, Harms J, Harry GM, Harry IW, Harstad ED, Haughian K, Hayama K, Hayau JF, Hayler T, Heefner J, Heitmann H, Hello P, Heng IS, Heptonstall AW, Hewitson M, Hild S, Hirose E, Hoak D, Hodge KA, Holt K, Hosken DJ, Hough J, Howell EJ, Hoyland D, Huet D, Hughey B, Husa S, Huttner SH, Huynh-Dinh T, Ingram DR, Inta R, Isogai T, Ivanov A, Jaranowski P, Johnson WW, Jones DI, Jones G, Jones R, Ju L, Kalmus P, Kalogera V, Kandhasamy S, Kanner JB, Katsavounidis E, Kawabe K, Kawamura S, Kawazoe F, Kells W, Keppel DG, Khalaidovski A, Khalili FY, Khazanov EA, Kim H, King PJ, Kinzel DL, Kissel JS, Klimenko S, Kondrashov V, Kopparapu R, Koranda S, Kowalska I, Kozak D, Krause T, Kringel V, Krishnamurthy S, Krishnan B, Królak A, Kuehn G, Kullman J, Kumar R, Kwee P, Landry M, Lang M, Lantz B, Lastzka N, Lazzarini A, Leaci P, Leong J, Leonor I, Leroy N, Letendre N, Li J, Li TGF, Liguori N, Lin H, Lindquist PE, Lockerbie NA, Lodhia D, Lorenzini M, Loriette V, Lormand M, Losurdo G, Lu P, Luan J, Lubinski M, Lucianetti A, Lück H, Lundgren AD, Machenschalk B, MacInnis M, Mageswaran M, Mailand K, Majorana E, Mak C, Maksimovic I, Man N, Mandel I, Mandic V, Mantovani M, Marchesoni F, Marion F, Márka S, Márka Z, Maros E, Marque J, Martelli F, Martin IW, Martin RM, Marx JN, Mason K, Masserot A, Matichard F, Matone L, Matzner RA, Mavalvala N, McCarthy R, McClelland DE, McGuire SC, McIntyre G, McIvor G, McKechan DJA, Meadors G, Mehmet M, Meier T, Melatos A, Melissinos AC, Mendell G, Menéndez DF, Mercer RA, Merill L, Meshkov S, Messenger C, Meyer MS, Miao H, Michel C, Milano L, Miller J, Minenkov Y, Mino Y, Mitra S, Mitrofanov VP, Mitselmakher G, Mittleman R, Moe B, Mohan M, Mohanty SD, Mohapatra SRP, Moraru D, Moreau J, Moreno G, Morgado N, Morgia A, Morioka T, Mors K, Mosca S, Moscatelli V, Mossavi K, Mours B, Mow-Lowry CM, Mueller G, Mukherjee S, Mullavey A, Müller-Ebhardt H, Munch J, Murray PG, Nash T, Nawrodt R, Nelson J, Neri I, Newton G, Nishizawa A, Nocera F, Nolting D, Ochsner E, O'Dell J, Ogin GH, Oldenburg RG, O'Reilly B, O'Shaughnessy R, Osthelder C, Ottaway DJ, Ottens RS, Overmier H, Owen BJ, Page A, Pagliaroli G, Palladino L, Palomba C, Pan Y, Pankow C, Paoletti F, Papa MA, Pardi S, Pareja M, Parisi M, Pasqualetti A, Passaquieti R, Passuello D, Patel P, Pathak D, Pedraza M, Pekowsky L, Penn S, Peralta C, Perreca A, Persichetti G, Pichot M, Pickenpack M, Piergiovanni F, Pietka M, Pinard L, Pinto IM, Pitkin M, Pletsch HJ, Plissi MV, Poggiani R, Postiglione F, Prato M, Predoi V, Price LR, Prijatelj M, Principe M, Prix R, Prodi GA, Prokhorov L, Puncken O, Punturo M, Puppo P, Quetschke V, Raab FJ, Rabeling DS, Radke T, Radkins H, Raffai P, Rakhmanov M, Rankins B, Rapagnani P, Raymond V, Re V, Reed CM, Reed T, Regimbau T, Reid S, Reitze DH, Ricci F, Riesen R, Riles K, Roberts P, Robertson NA, Robinet F, Robinson C, Robinson EL, Rocchi A, Roddy S, Röver C, Rolland L, Rollins J, Romano JD, Romano R, Romie JH, Rosińska D, Rowan S, Rüdiger A, Ruggi P, Ryan K, Sakata S, Sakosky M, Salemi F, Sammut L, de la Jordana LS, Sandberg V, Sannibale V, Santamaría L, Santostasi G, Saraf S, Sassolas B, Sathyaprakash BS, Sato S, Satterthwaite M, Saulson PR, Savage R, Schilling R, Schnabel R, Schofield RMS, Schulz B, Schutz BF, Schwinberg P, Scott J, Scott SM, Searle AC, Seifert F, Sellers D, Sengupta AS, Sentenac D, Sergeev A, Shaddock DA, Shapiro B, Shawhan P, Shoemaker DH, Sibley A, Siemens X, Sigg D, Singer A, Sintes AM, Skelton G, Slagmolen BJJ, Slutsky J, Smith JR, Smith MR, Smith ND, Somiya K, Sorazu B, Speirits FC, Sperandio L, Stein AJ, Stein LC, Steinlechner S, Steplewski S, Stochino A, Stone R, Strain KA, Strigin S, Stroeer AS, Sturani R, Stuver AL, Summerscales TZ, Sung M, Susmithan S, Sutton PJ, Swinkels B, Szokoly GP, Talukder D, Tanner DB, Tarabrin SP, Taylor JR, Taylor R, Thomas P, Thorne KA, Thorne KS, Thrane E, Thüring A, Titsler C, Tokmakov KV, Toncelli A, Tonelli M, Torre O, Torres C, Torrie CI, Tournefier E, Travasso F, Traylor G, Trias M, Trummer J, Tseng K, Turner L, Ugolini D, Urbanek K, Vahlbruch H, Vaishnav B, Vajente G, Vallisneri M, van den Brand JFJ, Van Den Broeck C, van der Putten S, van der Sluys MV, van Veggel AA, Vass S, Vaulin R, Vavoulidis M, Vecchio A, Vedovato G, Veitch J, Veitch PJ, Veltkamp C, Verkindt D, Vetrano F, Viceré A, Villar AE, Vinet JY, Vocca H, Vorvick C, Vyachanin SP, Waldman SJ, Wallace L, Wanner A, Ward RL, Was M, Wei P, Weinert M, Weinstein AJ, Weiss R, Wen L, Wen S, Wessels P, West M, Westphal T, Wette K, Whelan JT, Whitcomb SE, White D, Whiting BF, Wilkinson C, Willems PA, Williams L, Willke B, Winkelmann L, Winkler W, Wipf CC, Wiseman AG, Woan G, Wooley R, Worden J, Yakushin I, Yamamoto H, Yamamoto K, Yeaton-Massey D, Yoshida S, Yu P, Yvert M, Zanolin M, Zhang L, Zhang Z, Zhao C, Zotov N, Zucker ME, Zweizig J. Directional limits on persistent gravitational waves using LIGO S5 science data. Phys Rev Lett 2011; 107:271102. [PMID: 22243300 DOI: 10.1103/physrevlett.107.271102] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/09/2011] [Indexed: 05/31/2023]
Abstract
The gravitational-wave (GW) sky may include nearby pointlike sources as well as stochastic backgrounds. We perform two directional searches for persistent GWs using data from the LIGO S5 science run: one optimized for pointlike sources and one for arbitrary extended sources. Finding no evidence to support the detection of GWs, we present 90% confidence level (C.L.) upper-limit maps of GW strain power with typical values between 2-20×10(-50) strain(2) Hz(-1) and 5-35×10(-49) strain(2) Hz(-1) sr(-1) for pointlike and extended sources, respectively. The latter result is the first of its kind. We also set 90% C.L. limits on the narrow-band root-mean-square GW strain from interesting targets including Sco X-1, SN 1987A and the Galactic center as low as ≈7×10(-25) in the most sensitive frequency range near 160 Hz.
Collapse
Affiliation(s)
- J Abadie
- LIGO-California Institute of Technology, Pasadena, California 91125, USA
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
39
|
Lück H, Affeldt C, Degallaix J, Freise A, Grote H, Hewitson M, Hild S, Leong J, Prijatelj M, Strain KA, Willke B, Wittel H, Danzmann K. The upgrade of GEO 600. ACTA ACUST UNITED AC 2010. [DOI: 10.1088/1742-6596/228/1/012012] [Citation(s) in RCA: 61] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
|
40
|
Prijatelj M, Grote H, Degallaix J, Hewitson M, Hild S, Affeldt C, Freise A, Leong J, Lück H, Strain KA, Wittel H, Willke B, Danzmann K. Control and automatic alignment of the output mode cleaner of GEO 600. ACTA ACUST UNITED AC 2010. [DOI: 10.1088/1742-6596/228/1/012014] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
|
41
|
Degallaix J, Grote H, Prijatelj M, Hewitson M, Hild S, Affeldt C, Freise A, Leong J, Lück H, Strain KA, Wittel H, Willke B, Danzmann K. Commissioning of the tuned DC readout at GEO 600. ACTA ACUST UNITED AC 2010. [DOI: 10.1088/1742-6596/228/1/012013] [Citation(s) in RCA: 3] [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: 11/11/2022]
|
42
|
Morris J, O'sullivan DJ, Koster M, Leong J, Weisbeek PJ, O'gara F. Characterization of Fluorescent Siderophore-Mediated Iron Uptake in Pseudomonas sp. Strain M114: Evidence for the Existence of an Additional Ferric Siderophore Receptor. Appl Environ Microbiol 2010; 58:630-5. [PMID: 16348650 PMCID: PMC195294 DOI: 10.1128/aem.58.2.630-635.1992] [Citation(s) in RCA: 17] [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: 11/20/2022] Open
Abstract
In Pseudomonas sp. strain M114, the outer membrane receptor for ferric pseudobactin M114 was shown to transport ferric pseudobactins B10 and A225, in addition to its own. The gene encoding this receptor, which was previously cloned on pCUP3, was localized by Tn5 mutagenesis to a region comprising >1.6 kb of M114 DNA. A mutant (strain M114R1) lacking this receptor was then created by a marker exchange technique. Characterization of this mutant by using purified pseudobactin M114 in radiolabeled ferric iron uptake studies confirmed that it was completely unable to utilize this siderophore for acquisition of iron. In addition, it lacked an outer membrane protein band of 89 kDa when subjected to sodium dodecyl sulfate-polyacrylamide gel electrophoresis. As a result, growth of the mutant was severely restricted under low-iron conditions. However, this phenotype was reversed in the presence of another fluorescent siderophore (pseudobactin MT3A) from Pseudomonas sp. strain MT3A, suggesting the presence of a second receptor in strain M114. Furthermore, wild-type Pseudomonas sp. strain B24 was not able to utilize ferric pseudobactin MT3A, and this phenotype was not reversed upon expression of the M114 receptor encoded on pCUP3. However, a cosmid clone (pMS1047) that enabled strain B24 to utilize ferric pseudobactin MT3A was isolated from an M114 gene bank. Radiolabel transport assays with purified pseudobactin MT3A confirmed this event. Plasmid pMS1047 was shown to encode an outer membrane protein of 81 kDa in strain B24 under iron-limiting conditions; this protein corresponds to a similar protein in strain M114.
Collapse
Affiliation(s)
- J Morris
- Microbiology Department, University College, Cork, Ireland, and Department of Molecular Cell Biology, University of Utrecht, Padualaan 8, 3584 CH Utrecht, The Netherlands
| | | | | | | | | | | |
Collapse
|
43
|
Ulph F, Leong J, Glazebrook C, Townsend E. A qualitative study exploring genetic counsellors' experiences of counselling children. Eur J Hum Genet 2010; 18:1090-4. [PMID: 20531440 DOI: 10.1038/ejhg.2010.86] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
The identification of healthy carriers by newborn screening programmes raises questions about how and when the carrier results will be conveyed to child. There is currently a lack of information concerning how best to convey carrier information to children. This is a serious gap in the literature and practice. This study examined genetic counsellors' experiences of counselling children to explore how to support and inform children about their carrier result. Practising members of the United Kingdom (UK) Association of Genetic Nurses and Counsellors took part in semi-structured telephone interviews. Respondents described the communication process and identified barriers and facilitators of communication. Age, illness experience and maturity were variously discussed as facilitators; all of which are integral to psychological theories of children's understanding of illness. Adaptive family communication, school tuition and educational materials were also seen as influencing counselling efficacy. Relevant materials that children could keep were also seen as important to enhance children's autonomy. Yet, such resources were rare, constituting a barrier to communication. Counsellors reported communication was further impeded by maladaptive family communication and resistance from children to engaging in counselling. By exploring the facilitators and barriers inherent in communicating genetic information to children, guidance can be offered to counsellors, researchers and parents. This study indicates that some factors (eg illness experiences) previously identified by psychological theories may act in complex ways within this setting. Importantly, the factors identified as being most influential when communicating with children about genetics are amenable to change through interventions, support and training.
Collapse
Affiliation(s)
- Fiona Ulph
- School of Psychological Sciences, University of Manchester, Manchester, UK.
| | | | | | | |
Collapse
|
44
|
Rossiter-Thornton L, Azar D, Leong J, Lightman S, Towler HMA, McCluskey P. Graft-free Molteno tube insertion: 10-year outcomes. Br J Ophthalmol 2010; 94:665-6. [DOI: 10.1136/bjo.2009.160150] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
|
45
|
Ting JWC, Rozen WM, Leong J, Crock J. Free deep circumflex iliac artery vascularised bone flap for reconstruction of the distal radius: planning with CT angiography. Microsurgery 2009; 30:163-7. [PMID: 20017201 DOI: 10.1002/micr.20731] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [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: 11/07/2022]
Abstract
Distal radius fractures in the younger population are often comminuted and intra-articular, which can increase the complexity of their management. In addition, these patients tend to place high demands on their wrists, and the prevention of functional arthritis necessitates excellent anatomical reduction. Complicated cases such as these are often limited in their management options. We present a complex case of distal radius fracture and bone loss in which initial therapy with nonvascularized bone graft failed, and osteomyelitis was a further complicating factor. With the aid of preoperative planning with computed tomographic angiography (CTA), a deep circumflex iliac artery (DCIA) bone flap was able to be assessed as a reconstructive option. The use of preoperative CTA, the first description of such imaging in this role, was able to delineate the bone to be harvested, confirm its vascular supply, and plan flap harvest. The use of a vascularized bone flap in this setting was thus undertaken and was able to provide an autologous anatomical support for the wrist while reducing the risk of recurrent infection and still preserving internal fixation. This unique application of the free DCIA bone flap was potentiated by CTA, achieving complete healing and good functional outcomes.
Collapse
Affiliation(s)
- Jeannette W C Ting
- Department of Anatomy and Cell Biology, Jack Brockhoff Reconstructive Plastic Surgery Research Unit, University of Melbourne, Victoria, Australia.
| | | | | | | |
Collapse
|
46
|
|
47
|
Phung S, Strange G, Chung LP, Leong J, Dalton B, Roddy J, Deague J, Playford D, Musk M, Gabbay E. Prevalence of pulmonary arterial hypertension in an Australian scleroderma population: screening allows for earlier diagnosis. Intern Med J 2009; 39:682-91. [DOI: 10.1111/j.1445-5994.2008.01823.x] [Citation(s) in RCA: 73] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
|
48
|
Affiliation(s)
- J Leong
- Division of Gastroenterology, North Shore University Hospital, Manhasset, New York 11030, USA.
| | | | | |
Collapse
|
49
|
von Schalburg KR, Leong J, Cooper GA, Robb A, Beetz-Sargent MR, Lieph R, Holt RA, Moore R, Ewart KV, Driedzic WR, ten Hallers BFH, Zhu B, de Jong PJ, Davidson WS, Koop BF. Rainbow smelt (Osmerus mordax) genomic library and EST resources. Mar Biotechnol (NY) 2008; 10:487-491. [PMID: 18386095 PMCID: PMC2516299 DOI: 10.1007/s10126-008-9089-6] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/05/2007] [Revised: 01/16/2008] [Accepted: 01/28/2008] [Indexed: 05/26/2023]
Abstract
Genomic resources in rainbow smelt (Osmerus mordax) enable us to examine the genome duplication process in salmonids and test hypotheses relating to the fate of duplicated genes. They further enable us to pursue physiological and ecological studies in smelt. A bacterial artificial chromosome library containing 52,410 clones with an average insert size of 146 kb was constructed. This library represents an 11-fold average coverage of the rainbow smelt (O. mordax) genome. In addition, several complementary deoxyribonucleic acid libraries were constructed, and 36,758 sequences were obtained and combined into 12,159 transcripts. Over half of these transcripts have been identified, several of which have been associated with cold adaptation. These basic resources show high levels of similarity (86%) to salmonid genes and provide initial support for genome duplication in the salmonid ancestor. They also facilitate identification of genes important to fish and direct us toward new technologies for other studies in fish biology.
Collapse
Affiliation(s)
- K. R. von Schalburg
- Centre for Biomedical Research, University of Victoria, Victoria, BC V8W 3N5 Canada
| | - J. Leong
- Centre for Biomedical Research, University of Victoria, Victoria, BC V8W 3N5 Canada
| | - G. A. Cooper
- Centre for Biomedical Research, University of Victoria, Victoria, BC V8W 3N5 Canada
| | - A. Robb
- Centre for Biomedical Research, University of Victoria, Victoria, BC V8W 3N5 Canada
| | - M. R. Beetz-Sargent
- Centre for Biomedical Research, University of Victoria, Victoria, BC V8W 3N5 Canada
| | - R. Lieph
- Centre for Biomedical Research, University of Victoria, Victoria, BC V8W 3N5 Canada
| | - R. A. Holt
- Genome Sciences Centre, BC Cancer Agency, Vancouver, BC V5Z 4S6 Canada
| | - R. Moore
- Genome Sciences Centre, BC Cancer Agency, Vancouver, BC V5Z 4S6 Canada
| | - K. V. Ewart
- Institute for Marine Biosciences, National Research Council, Halifax, NS B3H 3Z1 Canada
| | - W. R. Driedzic
- Oceans Sciences Centre, Memorial University of Newfoundland, St. John’s, NF A1C 5S7 Canada
| | - B. F. H. ten Hallers
- BACPAC Resources, Children’s Hospital Oakland, 747 52nd St., Oakland, CA 94609 USA
| | - B. Zhu
- BACPAC Resources, Children’s Hospital Oakland, 747 52nd St., Oakland, CA 94609 USA
| | - P. J. de Jong
- BACPAC Resources, Children’s Hospital Oakland, 747 52nd St., Oakland, CA 94609 USA
| | - W. S. Davidson
- Molecular Biology and Biochemistry, Simon Fraser University, Burnaby, BC V5A 1S6 Canada
| | - B. F. Koop
- Centre for Biomedical Research, University of Victoria, Victoria, BC V8W 3N5 Canada
- Department of Biology, University of Victoria, P.O. Box 3020, Victoria, BC V8W 3N5 Canada
| |
Collapse
|
50
|
Padin S, Staniszewski Z, Keisler R, Joy M, Stark AA, Ade PAR, Aird KA, Benson BA, Bleem LE, Carlstrom JE, Chang CL, Crawford TM, Crites AT, Dobbs MA, Halverson NW, Heimsath S, Hills RE, Holzapfel WL, Lawrie C, Lee AT, Leitch EM, Leong J, Lu W, Lueker M, McMahon JJ, Meyer SS, Mohr JJ, Montroy TE, Plagge T, Pryke C, Ruhl JE, Schaffer KK, Shirokoff E, Spieler HG, Vieira JD. South Pole Telescope optics. Appl Opt 2008; 47:4418-4428. [PMID: 18716649 DOI: 10.1364/ao.47.004418] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
The South Pole Telescope is a 10 m diameter, wide-field, offset Gregorian telescope with a 966-pixel, millimeter-wave, bolometer array receiver. The telescope has an unusual optical system with a cold stop around the secondary. The design emphasizes low scattering and low background loading. All the optical components except the primary are cold, and the entire beam from prime focus to the detectors is surrounded by cold absorber.
Collapse
Affiliation(s)
- S Padin
- Kavli Institute for Cosmological Physics, University of Chicago, 5640 South Ellis Avenue, Chicago, Illinois 60637, USA.
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|