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15. Cautiously optimistic: A survey of radiation oncology professionals’ perceptions of automation in radiotherapy planning

Author

Batumalai, V ; https://orcid.org/0000-0003-2021-2599, Jameson, MG ; https://orcid.org/0000-0003-4867-7670, King, O, Walker, R, Slater, C, Dundas, K ; https://orcid.org/0000-0002-3203-1157, Dinsdale, G, Wallis, A, Ochoa, C, Gray, R, Vial, P, Vinod, SK ; https://orcid.org/0000-0001-8075-6219, Batumalai, V ; https://orcid.org/0000-0003-2021-2599, Jameson, MG ; https://orcid.org/0000-0003-4867-7670, King, O, Walker, R, Slater, C, Dundas, K ; https://orcid.org/0000-0002-3203-1157, Dinsdale, G, Wallis, A, Ochoa, C, Gray, R, Vial, P, and Vinod, SK ; https://orcid.org/0000-0001-8075-6219

Abstract

Introduction: While there is evidence to show the positive effects of automation, the impact on radiation oncology professionals has been poorly considered. This study examined radiation oncology professionals’ perceptions of automation in radiotherapy planning. Method: An online survey link was sent to the chief radiation therapists (RT) of all Australian radiotherapy centres to be forwarded to RTs, medical physicists (MP) and radiation oncologists (RO) within their institution. The survey was open from May-July 2019. Results: Participants were 204 RTs, 84 MPs and 37 ROs (response rates ∼10% of the overall radiation oncology workforce). Respondents felt automation resulted in improvement in consistency in planning (90%), productivity (88%), quality of planning (57%), and staff focus on patient care (49%). When asked about perceived impact of automation, the responses were; will change the primary tasks of certain jobs (66%), will allow staff to do the remaining components of their job more effectively (51%), will eliminate jobs (20%), and will not have an impact on jobs (6%). 27% of respondents believe automation will reduce job satisfaction. 71% of respondents strongly agree/agree that automation will cause a loss of skills, while only 25% strongly agree/agree that the training and education tools in their department are sufficient. Conclusion: Although the effect of automation is perceived positively, there are some concerns on loss of skillsets and the lack of training to maintain this. These results highlight the need for continued education to ensure that skills and knowledge are not lost with automation.

Published
2020

16. Does the Clinical Context Improve the Reliability of Rheumatologists Grading Digital Ulcers in Systemic Sclerosis?

Author

Hughes, M., Roberts, C., Tracey, A., Dinsdale, G., Murray, A., and Herrick, A. L.

Subjects
Adult, Fingers, Male, Scleroderma, Systemic, Rheumatology, Skin Ulcer, Humans, Reproducibility of Results, Female, Systemic Sclerosis, Middle Aged, Rheumatologists
Abstract

Objective Digital ulcers (DUs) are often a primary end point in systemic sclerosis (SSc; scleroderma) clinical trials, although the reliability of rheumatologists grading DUs is poor to moderate at best. DU assessment in recent trials has been based upon visual inspection alone, which potentially misses “real‐world” clinical contextual information. Our aim was to investigate whether this clinical information improves the reliability of rheumatologists grading DUs. A secondary aim was to assess agreement between patients and rheumatologists. Methods Eighty images of a range of digital lesions were collected from patients with SSc with the clinical context: pain (severity and temporal relationship), lesion duration, and discharge (patient reported and clinician observed). Raters received all images either with or without the clinical context, and graded these images (using a custom‐built interface) on an ordinal scale of severity: no ulcer, inactive ulcer, or active ulcer. Patients also graded their lesion(s) on the same scale. Results Fifty‐one rheumatologists from 15 countries completed the study (26 without and 25 with context): 4,590 (including 510 repeated) image gradings were obtained. Context did not significantly increase (without and with context) either intra‐ (0.64, 0.71) or interrater (0.32, 0.36) reliability. Pain (visual analog scale and temporal relationship) and discharge (patient reported and clinician observed) were associated with increased lesion severity, and duration with reduced severity. Agreement between individual patients and rheumatologists was poor without and with context (0.19, 0.28). Conclusion The overall intra‐ and interrater reliability of DU grading did not significantly improve with the clinical context. Agreement between patients and rheumatologists was poor.

Published
2016

17. A Feasibility Study of a Novel Low Level Light Therapy for Digital Ulcers in Systemic Sclerosis

Author

Hughes, M, Moore, T, Manning, J, Wilkinson, J, Watson, S, Samraj, P, Dinsdale, G, Roberts, C, Rhodes, Le, Herrick, Al, and Murray, A

Subjects
Systemic sclerosis, Digital ulcers, Phototherapy, Scleroderma
Abstract

Background: Locally acting, well-tolerated treatments for systemic sclerosis (SSc) digital ulcers (DUs) are needed. Objectives: Our primary aim was to investigate the safety, feasibility and tolerability of a novel low level light therapy (LTTT). A secondary aim was to tentatively assess efficacy. Methods: A custom-built device comprising infrared (850nm), red (660nm) and violet (405nm) LEDs was utilised. DUs were irradiated with 10J/cm2 twice weekly for three weeks, with follow-up at weeks 4&8. Any safety concerns were documented. Patient opinion on time to deliver, feasibility and pain visual analogue score (0-100,100 most severe) was collected. Patient and clinician DU global assessment VAS were documented. DUs were evaluated by laser Doppler perfusion imaging pre- and post-irradiation. Results: 14 DUs in 8 patients received a total of 46 light exposures, with no safety concerns. All patients considered LTTT ‘took just the right amount of time’ and was ‘feasible’, with a low associated mean pain VAS of 1.6 (SD 5.2). Patient and clinician global digital ulcer VAS improved during the study (mean change -7.1 and -5.2, respectively, both P=

Published
2019
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18. A Multicenter Study of the Validity and Reliability of Responses to Hand Cold Challenge as Measured by Laser Speckle Contrast Imaging and Thermography:outcome measures for systemic sclerosis-related Raynaud's phenomenon

Author

Wilkinson, JD, Leggett, SA, Marjanovic, EJ, Moore, TL, Allen, J, Anderson, ME, Britton, J, Buch, MH, Del Galdo, F, Denton, CP, Dinsdale, G, Griffiths, B, Hall, F, Howell, K, MacDonald, A, McHugh, NJ, Manning, JB, Pauling, JD, Roberts, C, Shipley, JA, Herrick, AL, and Murray, AK

Subjects
Male, Immunology, Diagnostic Techniques, Cardiovascular, Contrast Media, Statistics, Nonparametric, Fingers, Rheumatology, Outcome Assessment, Health Care, Humans, Immunology and Allergy, Aged, Observer Variation, Scleroderma, Systemic, Lasers, Reproducibility of Results, Raynaud Disease, Middle Aged, Hand, Cold Temperature, Regional Blood Flow, Thermography, Area Under Curve, Feasibility Studies, Female, Skin Temperature
Abstract

Objective: Reliable and objective outcome measures to facilitate clinical trials of novel treatments for systemic sclerosis (SSc)–related Raynaud's phenomenon (RP) are badly needed. Laser speckle contrast imaging (LSCI) and thermography are noninvasive measures of perfusion that have shown excellent potential. This multicenter study was undertaken to determine the reliability and validity of a hand cold challenge protocol using LSCI, standard thermography, and low-cost cell phone/mobile phone thermography (henceforth referred to as mobile thermography) in patients with SSc-related RP. Methods: Patients with RP secondary to SSc were recruited from 6 UK tertiary care centers. The patients underwent cold challenge on 2 consecutive days. Changes in cutaneous blood flow/skin temperature at each visit were imaged simultaneously using LSCI, standard thermography, and mobile thermography. Measurements included area under the curve (AUC) for reperfusion/rewarming and maximum blood flow rate/skin temperature after rewarming (MAX). Test–retest reliability was assessed using intraclass correlation coefficients (ICCs). Estimated latent correlations (estimated from multilevel models, taking values between −1 and 1; denoted as rho values) were used to assess the convergent validity of LSCI and thermography. Results: In total, 159 patients (77% with limited cutaneous SSc) were recruited (84% female, median age 63.3 years). LSCI and standard thermography both had substantial reliability, with ICCs for the reperfusion/rewarming AUC of 0.67 (95% confidence interval [95% CI] 0.54, 0.76) and 0.68 (95% CI 0.58, 0.80), respectively, and ICCs for the MAX of 0.64 (95% CI 0.52, 0.75) and 0.72 (95% CI 0.64, 0.81), respectively. Very high latent correlations were present for the AUCs of LSCI and thermography (ρ = 0.94; 95% CI 0.87, 1.00) and for the AUCs of standard and mobile thermography (ρ = 0.98; 95% CI 0.94, 1.00). Conclusion: This is the first multicenter study to examine the reliability and validity of cold challenge using LSCI and thermography in patients with SSc-related RP. LSCI and thermography both demonstrated good potential as outcome measures. LSCI, standard thermography, and mobile thermography had very high convergent validity.

Published
2018
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20. Patterns and predictors of skin score change in early diffuse systemic sclerosis from the European Scleroderma Observational Study

Author

Herrick, A, Peytrignet, S, Lunt, M, Pan, X, Hesselstrand, R, Mouthon, L, Silman, A, Dinsdale, G, Brown, E, Czirják, L, Distler, J, Distler, O, Fligelstone, K, Gregory, W, Ochiel, R, Vonk, M, Ancuţa, C, Ong, V, Farge, D, Hudson, M, Matucci-Cerinic, M, Balbir-Gurman, A, Midtvedt, Ø, Jobanputra, P, Jordan, A, Stevens, W, Moinzadeh, P, Hall, F, Agard, C, Anderson, M, Diot, E, Madhok, R, Akil, M, Buch, M, Chung, L, Damjanov, N, Gunawardena, H, Lanyon, P, Ahmad, Y, Chakravarty, K, Jacobsen, S, Macgregor, A, McHugh, N, Müller-Ladner, U, Riemekasten, G, Becker, M, Roddy, J, Carreira, P, Fauchais, A, Hachulla, E, Hamilton, J, İnanç, M, McLaren, J, Van Laar, J, Pathare, S, Proudman, S, Rudin, A, Sahhar, J, Coppere, B, Serratrice, C, Sheeran, T, Veale, D, Grange, C, Trad, G, and Denton, C

Subjects
Adult, Male, Skin/pathology, systemic sclerosis, autoantibodies, Severity of Illness Index, Scleroderma, Diffuse/diagnosis, outcomes research, Predictive Value of Tests, Skin Tests/statistics & numerical data, Humans, Prospective Studies, Skin, Skin Tests, RNA Polymerase III, Clinical and Epidemiological Research, Early Diagnosis, Logistic Models, ROC Curve, RNA Polymerase III/analysis, Area Under Curve, Scleroderma, Diffuse, Inflammatory diseases Radboud Institute for Health Sciences [Radboudumc 5], Disease Progression, Female, Patterns and predictors of skin score change in early diffuse systemic sclerosis from the European Scleroderma Observational Study
Abstract

ObjectivesOur aim was to use the opportunity provided by the European Scleroderma Observational Study to (1) identify and describe those patients with early diffuse cutaneous systemic sclerosis (dcSSc) with progressive skin thickness, and (2) derive prediction models for progression over 12 months, to inform future randomised controlled trials (RCTs). MethodsThe modified Rodnan skin score (mRSS) was recorded every 3 months in 326 patients. ‘Progressors’ were defined as those experiencing a 5-unit and 25% increase in mRSS score over 12 months (±3 months). Logistic models were fitted to predict progression and, using receiver operating characteristic (ROC) curves, were compared on the basis of the area under curve (AUC), accuracy and positive predictive value (PPV). Results66 patients (22.5%) progressed, 227 (77.5%) did not (33 could not have their status assessed due to insufficient data). Progressors had shorter disease duration (median 8.1 vs 12.6 months, P=0.001) and lower mRSS (median 19 vs 21 units, P=0.030) than non-progressors. Skin score was highest, and peaked earliest, in the anti-RNA polymerase III (Pol3+) subgroup (n=50). A first predictive model (including mRSS, duration of skin thickening and their interaction) had an accuracy of 60.9%, AUC of 0.666 and PPV of 33.8%. By adding a variable for Pol3 positivity, the model reached an accuracy of 71%, AUC of 0.711 and PPV of 41%. ConclusionsTwo prediction models for progressive skin thickening were derived, for use both in clinical practice and for cohort enrichment in RCTs. These models will inform recruitment into the many clinical trials of dcSSc projected for the coming years. Trial registration numberNCT02339441.

Published
2018
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21. Vascular diagnostics for Raynaud's phenomenon

Author

Dinsdale G and Herrick AL

Subjects
lcsh:Diseases of the circulatory (Cardiovascular) system, systemic sclerosis, lcsh:RC666-701, Raynauds phenomenon, nailfold capillaroscopy, angiography, laser Doppler, thermography
Abstract

Graham Dinsdale, Ariane L Herrick Centre for Musculoskeletal Research, Institute of Inflammation and Repair, Salford Royal NHS Foundation Trust, University of Manchester, Manchester Academic Health Science Centre, Manchester, UK Abstract: Raynaud's phenomenon (RP) is common, and in most patients is primary (idiopathic) when due to reversible vasospasm and does not progress to irreversible tissue injury. However, in those patients for whom RP is secondary to an underlying disease (eg, systemic sclerosis or atherosclerosis), progression to digital ulceration or critical ischemia can occur. Therefore, the key question for the clinician is “Why does this patient have RP?” Vascular diagnostics play a key role in answering this. In this review, we firstly discuss the different vascular investigations relevant to clinical practice: nail fold capillaroscopy (including the different methodologies for examining the nail fold capillaries, and the role of capillaroscopy in helping to differentiate between primary and systemic sclerosis-related RP), thermography (available in specialist centers), and evaluation of large vessel disease (for example, due to atherosclerosis). We then discuss research tools, mainly laser Doppler methods, including laser Doppler imaging and laser speckle contrast imaging. These are commercially available as complete imaging systems and are (relatively) easy to use. The main current goal in vascular imaging research is to validate these novel state-of-the-art techniques as outcome measures of digital vascular disease, and then apply them in early and later phase studies of new treatment approaches, thus facilitating drug development programs. Keywords: Raynaud's phenomenon, systemic sclerosis, nail fold capillaroscopy, thermography, laser Doppler, angiography

Published
2014

26. Patterns and predictors of skin score change in early diffuse systemic sclerosis from the European Scleroderma Observational Study

Author

Herrick, A.L., Peytrignet, S., Lunt, M., Pan, X., Hesselstrand, R., Mouthon, L., Silman, A.J., Dinsdale, G., Brown, E., Czirjak, L., Distler, J.H., Distler, O., Fligelstone, K., Gregory, W.J., Ochiel, R., Vonk, M.C., Ancuta, C., Ong, V.H., Farge, D., Hudson, M., Matucci-Cerinic, M., Balbir-Gurman, A., Midtvedt, O., Jobanputra, P., Jordan, A.C., Stevens, W.B.C., Moinzadeh, P., Hall, F.C., Agard, C., Anderson, M.E., Diot, E., Madhok, R., Akil, M., Buch, M.H., Chung, L., Damjanov, N.S., Gunawardena, H., Lanyon, P., Ahmad, Y., Chakravarty, K., Jacobsen, S., MacGregor, A.J., McHugh, N., Muller-Ladner, U., Riemekasten, G., Becker, M., Roddy, J., Carreira, P.E., Fauchais, A.L., Hachulla, E., Hamilton, J., Inanc, M., McLaren, J.S., Laar, J.M. van, Pathare, S., Proudman, S.M., Rudin, A., Sahhar, J., Coppere, B., Serratrice, C., Sheeran, T., Veale, D.J., Grange, C., Trad, G.S., Denton, C.P., Herrick, A.L., Peytrignet, S., Lunt, M., Pan, X., Hesselstrand, R., Mouthon, L., Silman, A.J., Dinsdale, G., Brown, E., Czirjak, L., Distler, J.H., Distler, O., Fligelstone, K., Gregory, W.J., Ochiel, R., Vonk, M.C., Ancuta, C., Ong, V.H., Farge, D., Hudson, M., Matucci-Cerinic, M., Balbir-Gurman, A., Midtvedt, O., Jobanputra, P., Jordan, A.C., Stevens, W.B.C., Moinzadeh, P., Hall, F.C., Agard, C., Anderson, M.E., Diot, E., Madhok, R., Akil, M., Buch, M.H., Chung, L., Damjanov, N.S., Gunawardena, H., Lanyon, P., Ahmad, Y., Chakravarty, K., Jacobsen, S., MacGregor, A.J., McHugh, N., Muller-Ladner, U., Riemekasten, G., Becker, M., Roddy, J., Carreira, P.E., Fauchais, A.L., Hachulla, E., Hamilton, J., Inanc, M., McLaren, J.S., Laar, J.M. van, Pathare, S., Proudman, S.M., Rudin, A., Sahhar, J., Coppere, B., Serratrice, C., Sheeran, T., Veale, D.J., Grange, C., Trad, G.S., and Denton, C.P.

Abstract

Contains fulltext : 191335.pdf (publisher's version ) (Open Access), OBJECTIVES: Our aim was to use the opportunity provided by the European Scleroderma Observational Study to (1) identify and describe those patients with early diffuse cutaneous systemic sclerosis (dcSSc) with progressive skin thickness, and (2) derive prediction models for progression over 12 months, to inform future randomised controlled trials (RCTs). METHODS: The modified Rodnan skin score (mRSS) was recorded every 3 months in 326 patients. 'Progressors' were defined as those experiencing a 5-unit and 25% increase in mRSS score over 12 months (+/-3 months). Logistic models were fitted to predict progression and, using receiver operating characteristic (ROC) curves, were compared on the basis of the area under curve (AUC), accuracy and positive predictive value (PPV). RESULTS: 66 patients (22.5%) progressed, 227 (77.5%) did not (33 could not have their status assessed due to insufficient data). Progressors had shorter disease duration (median 8.1 vs 12.6 months, P=0.001) and lower mRSS (median 19 vs 21 units, P=0.030) than non-progressors. Skin score was highest, and peaked earliest, in the anti-RNA polymerase III (Pol3+) subgroup (n=50). A first predictive model (including mRSS, duration of skin thickening and their interaction) had an accuracy of 60.9%, AUC of 0.666 and PPV of 33.8%. By adding a variable for Pol3 positivity, the model reached an accuracy of 71%, AUC of 0.711 and PPV of 41%. CONCLUSIONS: Two prediction models for progressive skin thickening were derived, for use both in clinical practice and for cohort enrichment in RCTs. These models will inform recruitment into the many clinical trials of dcSSc projected for the coming years. TRIAL REGISTRATION NUMBER: NCT02339441.

Published
2018

27. Patterns and predictors of skin score change in early diffuse systemic sclerosis from the European Scleroderma Observational Study.

Author

Midtvedt O., Veale D.J., Grange C., Trad G.-S., Denton C.P., Herrick A.L., Peytrignet S., Lunt M., Pan X., Hesselstrand R., Mouthon L., Silman A.J., DInsdale G., Brown E., Czirjak L., DIstler J.H.W., DIstler O., Fligelstone K., Gregory W.J., Ochiel R., Vonk M.C., Ancu C., Ong V.H., Farge D., Hudson M., Matucci-Cerinic M., Balbir-Gurman A., Jobanputra P., Jordan A.C., Stevens W., Moinzadeh P., Hall F.C., Agard C., Anderson M.E., DIot E., Madhok R., Akil M., Buch M.H., Chung L., Damjanov N.S., Gunawardena H., Lanyon P., Ahmad Y., Chakravarty K., Jacobsen S., MacGregor A.J., McHugh N., Muller-Ladner U., Riemekasten G., Becker M., Roddy J., Carreira P.E., Fauchais A.L., Hachulla E., Hamilton J., Inanc M., McLaren J.S., Van Laar J.M., Pathare S., Proudman S.M., Rudin A., Sahhar J., Coppere B., Serratrice C., Sheeran T., Midtvedt O., Veale D.J., Grange C., Trad G.-S., Denton C.P., Herrick A.L., Peytrignet S., Lunt M., Pan X., Hesselstrand R., Mouthon L., Silman A.J., DInsdale G., Brown E., Czirjak L., DIstler J.H.W., DIstler O., Fligelstone K., Gregory W.J., Ochiel R., Vonk M.C., Ancu C., Ong V.H., Farge D., Hudson M., Matucci-Cerinic M., Balbir-Gurman A., Jobanputra P., Jordan A.C., Stevens W., Moinzadeh P., Hall F.C., Agard C., Anderson M.E., DIot E., Madhok R., Akil M., Buch M.H., Chung L., Damjanov N.S., Gunawardena H., Lanyon P., Ahmad Y., Chakravarty K., Jacobsen S., MacGregor A.J., McHugh N., Muller-Ladner U., Riemekasten G., Becker M., Roddy J., Carreira P.E., Fauchais A.L., Hachulla E., Hamilton J., Inanc M., McLaren J.S., Van Laar J.M., Pathare S., Proudman S.M., Rudin A., Sahhar J., Coppere B., Serratrice C., and Sheeran T.

Abstract

Objectives Our aim was to use the opportunity provided by the European Scleroderma Observational Study to (1) identify and describe those patients with early diffuse cutaneous systemic sclerosis (dcSSc) with progressive skin thickness, and (2) derive prediction models for progression over 12 months, to inform future randomised controlled trials (RCTs). Methods The modified Rodnan skin score (mRSS) was recorded every 3 months in 326 patients. 'Progressors' were defined as those experiencing a 5-unit and 25% increase in mRSS score over 12 months (+/-3 months). Logistic models were fitted to predict progression and, using receiver operating characteristic (ROC) curves, were compared on the basis of the area under curve (AUC), accuracy and positive predictive value (PPV). Results 66 patients (22.5%) progressed, 227 (77.5%) did not (33 could not have their status assessed due to insufficient data). Progressors had shorter disease duration (median 8.1 vs 12.6 months, P=0.001) and lower mRSS (median 19 vs 21 units, P=0.030) than non-progressors. Skin score was highest, and peaked earliest, in the anti-RNA polymerase III (Pol3+) subgroup (n=50). A first predictive model (including mRSS, duration of skin thickening and their interaction) had an accuracy of 60.9%, AUC of 0.666 and PPV of 33.8%. By adding a variable for Pol3 positivity, the model reached an accuracy of 71%, AUC of 0.711 and PPV of 41%. Conclusions Two prediction models for progressive skin thickening were derived, for use both in clinical practice and for cohort enrichment in RCTs. These models will inform recruitment into the many clinical trials of dcSSc projected for the coming years. Trial registration number NCT02339441.Copyright © Article author(s) (or their employer(s) unless otherwise stated in the text of the article) 2018. All rights reserved. No commercial use is permitted unless otherwise expressly granted.

Published
2018

28. Patterns and predictors of skin score change in early diffuse systemic sclerosis from the European Scleroderma Observational Study.

Author

Herrick, AL, Peytrignet, S, Lunt, M, Pan, X, Hesselstrand, R, Mouthon, L, Silman, AJ, Dinsdale, G, Brown, E, Czirják, L, Distler, JHW, Distler, O, Fligelstone, K, Gregory, WJ, Ochiel, R, Vonk, MC, Ancuţa, C, Ong, VH, Farge, D, Hudson, M, Matucci-Cerinic, M, Balbir-Gurman, A, Midtvedt, Ø, Jobanputra, P, Jordan, AC, Stevens, W, Moinzadeh, P, Hall, FC, Agard, C, Anderson, ME, Diot, E, Madhok, R, Akil, M, Buch, MH, Chung, L, Damjanov, NS, Gunawardena, H, Lanyon, P, Ahmad, Y, Chakravarty, K, Jacobsen, S, MacGregor, AJ, McHugh, N, Müller-Ladner, U, Riemekasten, G, Becker, M, Roddy, J, Carreira, PE, Fauchais, AL, Hachulla, E, Hamilton, J, İnanç, M, McLaren, JS, van Laar, JM, Pathare, S, Proudman, SM, Rudin, A, Sahhar, J, Coppere, B, Serratrice, C, Sheeran, T, Veale, DJ, Grange, C, Trad, G-S, Denton, CP, Herrick, AL, Peytrignet, S, Lunt, M, Pan, X, Hesselstrand, R, Mouthon, L, Silman, AJ, Dinsdale, G, Brown, E, Czirják, L, Distler, JHW, Distler, O, Fligelstone, K, Gregory, WJ, Ochiel, R, Vonk, MC, Ancuţa, C, Ong, VH, Farge, D, Hudson, M, Matucci-Cerinic, M, Balbir-Gurman, A, Midtvedt, Ø, Jobanputra, P, Jordan, AC, Stevens, W, Moinzadeh, P, Hall, FC, Agard, C, Anderson, ME, Diot, E, Madhok, R, Akil, M, Buch, MH, Chung, L, Damjanov, NS, Gunawardena, H, Lanyon, P, Ahmad, Y, Chakravarty, K, Jacobsen, S, MacGregor, AJ, McHugh, N, Müller-Ladner, U, Riemekasten, G, Becker, M, Roddy, J, Carreira, PE, Fauchais, AL, Hachulla, E, Hamilton, J, İnanç, M, McLaren, JS, van Laar, JM, Pathare, S, Proudman, SM, Rudin, A, Sahhar, J, Coppere, B, Serratrice, C, Sheeran, T, Veale, DJ, Grange, C, Trad, G-S, and Denton, CP

Abstract

OBJECTIVES: Our aim was to use the opportunity provided by the European Scleroderma Observational Study to (1) identify and describe those patients with early diffuse cutaneous systemic sclerosis (dcSSc) with progressive skin thickness, and (2) derive prediction models for progression over 12 months, to inform future randomised controlled trials (RCTs). METHODS: The modified Rodnan skin score (mRSS) was recorded every 3 months in 326 patients. 'Progressors' were defined as those experiencing a 5-unit and 25% increase in mRSS score over 12 months (±3 months). Logistic models were fitted to predict progression and, using receiver operating characteristic (ROC) curves, were compared on the basis of the area under curve (AUC), accuracy and positive predictive value (PPV). RESULTS: 66 patients (22.5%) progressed, 227 (77.5%) did not (33 could not have their status assessed due to insufficient data). Progressors had shorter disease duration (median 8.1 vs 12.6 months, P=0.001) and lower mRSS (median 19 vs 21 units, P=0.030) than non-progressors. Skin score was highest, and peaked earliest, in the anti-RNA polymerase III (Pol3+) subgroup (n=50). A first predictive model (including mRSS, duration of skin thickening and their interaction) had an accuracy of 60.9%, AUC of 0.666 and PPV of 33.8%. By adding a variable for Pol3 positivity, the model reached an accuracy of 71%, AUC of 0.711 and PPV of 41%. CONCLUSIONS: Two prediction models for progressive skin thickening were derived, for use both in clinical practice and for cohort enrichment in RCTs. These models will inform recruitment into the many clinical trials of dcSSc projected for the coming years. TRIAL REGISTRATION NUMBER: NCT02339441.

Published
2018

30. Changes in disability and their relationship with skin thickening, in diffuse and limited cutaneous systemic sclerosis: a retrospective cohort study.

Author

Peytrignet, S, Manning, J, Wragg, E, Moore, T, Samaranayaka, M, Dinsdale, G, Herrick, AL, and Herrick, A L

Subjects
SYSTEMIC scleroderma, DISABILITIES, COHORT analysis, RETROSPECTIVE studies, FUNCTIONAL assessment
Abstract

Objective: The burden of disability associated with systemic sclerosis (SSc) is being increasingly recognized. Our aim was to test the hypothesis that changes in functional ability over time differ between patients with limited (lcSSc) and diffuse cutaneous (dcSSc) subtypes, and that in dcSSc (but not lcSSc) these changes correlate with skin thickening.Method: This was a retrospective analysis of data collected prospectively between 2005 and 2016 at a single centre. Data recorded at annual review visits included modified Rodnan skin score (mRSS) and Health Assessment Questionnaire Disability Index (HAQ-DI). Yearly rates of mRSS and HAQ-DI change were assessed by individual linear regressions, and those gradients were compared between disease groups (lcSSc/dcSSc) for each of early/late disease (less/greater than 5 years' duration).Results: The study included 402 patients (110 dcSSc, 292 lcSSc), with mean length of follow-up of 5.5 years (sd 3.5). Mean baseline HAQ-DI was 1.4 in dcSSc and 1.2 in lcSSc. In dcSSc, increased mRSS was associated with worsening disability (ρ = 0.36, p = 0.004) during early but not late disease (ρ = 0.12, p = 0.331). In lcSSc, changes in mRSS were not associated with changes in disability for early (ρ = -0.15, p = 0.173) or late disease (ρ = 0.10, p = 0.137).Conclusion: These findings confirm high disability in patients with SSc. A relationship between HAQ-DI and mRSS (worsening mRSS associated with increasing disability) was found only in patients with early dcSSc, suggesting that in other patient subgroups other factors play the major role. [ABSTRACT FROM AUTHOR]

Published
2019
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31. A feasibility study of a novel low-level light therapy for digital ulcers in systemic sclerosis.

Author

Hughes, M., Moore, T., Manning, J., Wilkinson, J., Watson, S., Samraj, P., Dinsdale, G., Roberts, C., Rhodes, L. E., Herrick, A. L., and Murray, A.

Subjects
SYSTEMIC scleroderma, PHOTOTHERAPY, FEASIBILITY studies, ULCERS, THERAPEUTICS, CAPILLAROSCOPY, RADIOTHERAPY
Abstract

Background: Locally acting, well-tolerated treatments for systemic sclerosis (SSc) digital ulcers (DUs) are needed. Objectives: Our primary aim was to investigate the safety, feasibility, and tolerability of a novel low-level light therapy (LTTT). A secondary aim was to tentatively assess efficacy. Methods: A custom-built device comprising infrared (850 nm), red (660 nm), and violet (405 nm) LEDs was utilized. DUs were irradiated with 10 J/cm2 twice weekly for 3 weeks, with follow-up at weeks 4 and 8. Any safety concerns were documented. Patient opinion on time to deliver, feasibility, and pain visual analogue score (VAS; 0–100, 100 most severe) was collected. Patient and clinician DU global assessment VAS were documented. DUs were evaluated by laser Doppler perfusion imaging pre- and post-irradiation. Results: In all, 14 DUs in eight patients received a total of 46 light exposures, with no safety concerns. All patients considered LTTT 'took just the right amount of time' and was 'feasible', with a low associated mean pain VAS of 1.6 (SD: 5.2). Patient and clinician global DC VAS improved during the study (mean change: –7.1 and –5.2, respectively, both p <.001). DU perfusion significantly increased post-irradiation. Conclusions: LTTT for DUs is safe, feasible, and well tolerated. There was an early tentative suggestion of treatment efficacy. [ABSTRACT FROM AUTHOR]

Published
2019
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34. FRI0530 Intra-and Inter-Observer Reliability of Nailfold Videocapillaroscopy – A Possible Outcome Measure for Systemic Sclerosis-Related Microangiopathy?: Table 1

Author

Dinsdale, G., primary, Moore, T., additional, O'Leary, N., additional, Manning, J., additional, Murray, A., additional, Berks, M., additional, Tresadern, P., additional, Allen, J., additional, Anderson, M., additional, Cutolo, M., additional, Hesselstrand, R., additional, Howell, K., additional, Pizzorni, C., additional, Pyrkotsch, P., additional, Smith, V., additional, Sulli, A., additional, Wildt, M., additional, Taylor, C., additional, Roberts, C., additional, and Herrick, A., additional

Published
2016
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38. Basic Science * 208. Stem Cell Factor Expression is Increased in the Skin of Patients with Systemic Sclerosis and Promotes Proliferation and Migration of Fibroblasts in vitro

Author

Karrar, S., primary, Shiwen, X., additional, Nikotorowicz-Buniak, J., additional, Abraham, D. J., additional, Denton, C., additional, Stratton, R., additional, Bayley, R., additional, Kite, K. A., additional, Clay, E., additional, Smith, J. P., additional, Kitas, G. D., additional, Buckley, C., additional, Young, S. P., additional, Ye, L., additional, Zhang, L., additional, Goodall, J., additional, Gaston, H., additional, Xu, H., additional, Lutalo, P. M., additional, Zhao, Y., additional, Meng Choong, L., additional, Sangle, S., additional, Spencer, J., additional, D'Cruz, D., additional, Rysnik, O. J., additional, McHugh, K., additional, Bowness, P., additional, Rump-Goodrich, L., additional, Mattey, D., additional, Kehoe, O., additional, Middleton, J., additional, Cartwright, A., additional, Schmutz, C., additional, Askari, A., additional, Gardner, D. H., additional, Jeffery, L. E., additional, Raza, K., additional, Sansom, D. M., additional, Fitzpatrick, M., additional, Wallace, G., additional, Young, S., additional, Shaw, J., additional, Hatano, H., additional, Cauli, A., additional, Giles, J. L., additional, Mathieu, A., additional, Kollnberger, S., additional, Webster, S., additional, Ellis, L., additional, O'Brien, L. M., additional, Fitzmaurice, T. J., additional, Nazeer Moideen, A., additional, Evans, L., additional, Osgood, L., additional, Williams, A., additional, Jones, S., additional, Thomas, C., additional, O'Donnell, V., additional, Nowell, M., additional, Ouboussad, L., additional, Savic, S., additional, Dickie, L. J., additional, Hintze, J., additional, Wong, C. H., additional, Cook, G. P., additional, Buch, M., additional, Emery, P., additional, McDermott, M. F., additional, Hardcastle, S. A., additional, Gregson, C. L., additional, Deere, K., additional, Davey Smith, G., additional, Dieppe, P., additional, Tobias, J. H., additional, Dennison, E., additional, Edwards, M., additional, Bennett, J., additional, Coggon, D., additional, Palmer, K., additional, Cooper, C., additional, McWilliams, D., additional, Young, A., additional, Kiely, P. D., additional, Walsh, D., additional, Taylor, H. J., additional, Harding, I., additional, Hutchinson, J., additional, Nelson, I., additional, Blom, A., additional, Tobias, J., additional, Clark, E., additional, Parker, J., additional, Bukhari, M., additional, Jayakumar, K., additional, Kiely, P., additional, Diffin, J., additional, Lunt, M., additional, Marshall, T., additional, Chipping, J., additional, Symmons, D., additional, Verstappen, S., additional, Bluett, J., additional, Bowes, J., additional, Ho, P., additional, McHugh, N., additional, Buden, D., additional, Fitzgerald, O., additional, Barton, A., additional, Glossop, J. R., additional, Nixon, N. B., additional, Emes, R. D., additional, Dawes, P. T., additional, Farrell, W. E., additional, Mattey, D. L., additional, Scott, I. C., additional, Steer, S., additional, Seegobin, S., additional, Hinks, A. M., additional, Eyre, S., additional, Morgan, A., additional, Wilson, A. G., additional, Hocking, L., additional, Wordsworth, P., additional, Worthington, J., additional, Cope, A., additional, Lewis, C. M., additional, Guerra, S., additional, Ahmed, B. A., additional, Abraham, D., additional, Fonseca, C., additional, Robinson, J., additional, Taylor, J., additional, Haroon Rashid, L., additional, Flynn, E., additional, Isaacs, J., additional, Barrett, J. H., additional, Kingston, B., additional, Ahmed, M., additional, Kirwan, J. R., additional, Marshall, R., additional, Chapman, K., additional, Pearson, R., additional, Heycock, C., additional, Kelly, C., additional, Rynne, M., additional, Saravanan, V., additional, Hamilton, J., additional, Saeed, A., additional, Coughlan, R., additional, Carey, J. J., additional, Farah, Z., additional, Matthews, W., additional, Bell, C., additional, Petford, S., additional, Tibbetts, L.-M., additional, Douglas, K. M. J., additional, Holden, W., additional, Ledingham, J., additional, Fletcher, M., additional, Winfield, R., additional, Price, Z., additional, Mackay, K., additional, Dixon, C., additional, Oppong, R., additional, Jowett, S., additional, Nicholls, E., additional, Whitehurst, D., additional, Hill, S., additional, Hammond, A., additional, Hay, E., additional, Dziedzic, K., additional, Righetti, C., additional, Lebmeier, M., additional, Manning, V. L., additional, Hurley, M., additional, Scott, D. L., additional, Choy, E., additional, Bearne, L., additional, Nikiphorou, E., additional, Morris, S., additional, James, D., additional, Wong, E. C., additional, Long, J., additional, Fletcher, A., additional, Holmes, S., additional, Hockey, P., additional, Abbas, M., additional, Chattopadhyay, C., additional, Flint, J., additional, Gayed, M., additional, Schreiber, K., additional, Arthanari, S., additional, Nisar, M., additional, Khamashta, M., additional, Gordon, C., additional, Giles, I., additional, Robson, J., additional, Kiran, A., additional, Maskell, J., additional, Arden, N., additional, Hutchings, A., additional, Emin, A., additional, Culliford, D., additional, Dasgupta, B., additional, Hamilton, W., additional, Luqmani, R., additional, Jethwa, H., additional, Rowczenio, D., additional, Trojer, H., additional, Russell, T., additional, Loeffler, J., additional, Hawkins, P., additional, Lachmann, H., additional, Verma, I., additional, Syngle, A., additional, Krishan, P., additional, Garg, N., additional, McGowan, S. P., additional, Gerrard, D. T., additional, Chinoy, H., additional, Ollier, W. E., additional, Cooper, R. G., additional, Lamb, J. A., additional, Taborda, L., additional, Correia Azevedo, P., additional, Isenberg, D., additional, Leyland, K. M., additional, Judge, A., additional, Hunter, D., additional, Hart, D., additional, Javaid, M. K., additional, Edwards, M. H., additional, Litwic, A. E., additional, Jameson, K. A., additional, Deeg, D., additional, Cushnaghan, J., additional, Aihie Sayer, A., additional, Jagannath, D., additional, Parsons, C., additional, Stoppiello, L., additional, Mapp, P., additional, Ashraf, S., additional, Wilson, D., additional, Hill, R., additional, Scammell, B., additional, Wenham, C., additional, Shore, P., additional, Hodgson, R., additional, Grainger, A., additional, Aaron, J., additional, Hordon, L., additional, Conaghan, P., additional, Bar-Ziv, Y., additional, Beer, Y., additional, Ran, Y., additional, Benedict, S., additional, Halperin, N., additional, Drexler, M., additional, Mor, A., additional, Segal, G., additional, Lahad, A., additional, Haim, A., additional, Rath, U., additional, Morgensteren, D. M., additional, Salai, M., additional, Elbaz, A., additional, Vasishta, V. G., additional, Derrett-Smith, E., additional, Hoyles, R., additional, Khan, K., additional, Ezeonyeji, A., additional, Takhar, G., additional, Ong, V., additional, Loughrey, L., additional, Bissell, L.-A., additional, Hensor, E., additional, Abignano, G., additional, Redmond, A., additional, Del Galdo, F., additional, Hall, F. C., additional, Malaviya, A., additional, Baker, S., additional, Furlong, A., additional, Mitchell, A., additional, Godfrey, A. L., additional, Ruddlesden, M., additional, Hadjinicolaou, A., additional, Hughes, M., additional, Moore, T., additional, O'Leary, N., additional, Tracey, A., additional, Ennis, H., additional, Dinsdale, G., additional, Roberts, C., additional, Herrick, A., additional, Denton, C. P., additional, Guillevin, L., additional, Hunsche, E., additional, Rosenberg, D., additional, Schwierin, B., additional, Scott, M., additional, Krieg, T., additional, Anderson, M., additional, Matucci-Cerinic, M., additional, Alade, R., additional, Xu, S., additional, Nihtyanova, S., additional, Clark, K. E., additional, Tam, F. W. K., additional, Unwin, R., additional, Stratton, R. J., additional, Schreiber, B., additional, Seng Edwin Lim, C., additional, Corsiero, E., additional, Sutcliffe, N., additional, Wardemann, H., additional, Pitzalis, C., additional, Bombardieri, M., additional, Tahir, H., additional, Donnelly, S., additional, Greenwood, M., additional, Smith, T. O., additional, Easton, V., additional, Bacon, H., additional, Jerman, E., additional, Armon, K., additional, Poland, F., additional, Macgregor, A., additional, van der Heijde, D., additional, Sieper, J., additional, Elewaut, D., additional, Pangan, A. L., additional, Nguyen, D., additional, Badenhorst, C., additional, Kirby, S., additional, White, D., additional, Harrison, A., additional, Garcia, J. A., additional, Stebbings, S., additional, MacKay, J. W., additional, Aboelmagd, S., additional, Gaffney, K., additional, Deodhar, A., additional, Braun, J., additional, Mack, M., additional, Hsu, B., additional, Gathany, T., additional, Han, C., additional, Inman, R. D., additional, Cooper-Moss, N., additional, Packham, J., additional, Strauss, V., additional, Freeston, J. E., additional, Coates, L., additional, Nam, J., additional, Moverley, A. R., additional, Helliwell, P., additional, Wakefield, R., additional, Mease, P., additional, Fleischmann, R., additional, Wollenhaupt, J., additional, Kielar, D., additional, Woltering, F., additional, Stach, C., additional, Hoepken, B., additional, Arledge, T., additional, Gladman, D., additional, Coteur, G., additional, Kavanaugh, A., additional, Purcaru, O., additional, McInnes, I., additional, Gottlieb, A. B., additional, Puig, L., additional, Rahman, P., additional, Ritchlin, C., additional, Li, S., additional, Wang, Y., additional, Mendelsohn, A., additional, Doyle, M., additional, Tillett, W., additional, Jadon, D., additional, Shaddick, G., additional, Cavill, C., additional, Robinson, G., additional, Sengupta, R., additional, Korendowych, E., additional, de Vries, C., additional, Thomas, R. C., additional, Shuto, T., additional, Busquets-Perez, N., additional, Marzo-Ortega, H., additional, McGonagle, D., additional, Richards, G., additional, Bingham, S., additional, John Hamlin, P., additional, Adshead, R., additional, Cambridge, S., additional, Suppiah, P., additional, Cullinan, M., additional, Nolan, A., additional, Thompson, W. M., additional, Mathieson, H. R., additional, Mackie, S. L., additional, Bryer, D., additional, Krutikov, M., additional, Gray, L., additional, Bruce, E., additional, Keat, A., additional, Innes, W., additional, Pandit, R., additional, Kay, L., additional, Lapshina, S., additional, Myasoutova, L., additional, Erdes, S., additional, Wallis, D., additional, Waldron, N., additional, Thorne, I., additional, Harris, C., additional, Vohra, K., additional, Khinchi, D., additional, Kaur, L., additional, Jones, A., additional, Harrison, N., additional, Harris, D., additional, Jones, T., additional, Rees, J., additional, Bennett, A., additional, Fazal, S., additional, Tugnet, N., additional, Barkham, N., additional, Basu, N., additional, McClean, A., additional, Harper, L., additional, Amft, E. N., additional, Dhaun, N., additional, Luqmani, R. A., additional, Little, M. A., additional, Jayne, D. R., additional, Flossmann, O., additional, McLaren, J., additional, Kumar, V., additional, Reid, D. M., additional, Macfarlane, G. J., additional, Jones, G., additional, Yates, M., additional, Watts, R. A., additional, Igali, L., additional, Mukhtyar, C., additional, Doll, H., additional, Yew, S., additional, Suppiah, R., additional, Hoglund, P., additional, Jayne, D., additional, Westman, K., additional, Win Maw, W., additional, Patil, P., additional, Williams, M., additional, Adizie, T., additional, Christidis, D., additional, Borg, F., additional, Robertson, A., additional, Croft, A. P., additional, Smith, S., additional, Carr, S., additional, Youssouf, S., additional, Salama, A., additional, Pusey, C., additional, and Morgan, M., additional

Published
2013
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39. Associations with digital pitting in patients with systemic sclerosis: results of a retrospective analysis.

Author

Vivekanantham, A, Dinsdale, G, Heal, C, Manning, J, and Herrick, AL

Subjects
*SYSTEMIC scleroderma, *CALCINOSIS, *RETROSPECTIVE studies, *RAYNAUD'S disease
Abstract

History of surgical debridement, anticentromere antibody, and disease duration are associated with calcinosis in patients with systemic sclerosis. The confirmation of an association with calcinosis is also of interest ([4]): calcinosis is thought to be associated with severity of digital vasculopathy/ischaemia and with disease duration ([6], [7]). Male patients were more likely to have digital pitting (p = 0.025), and all patients with digital pitting were more likely to have calcinosis (p < 0.001). [Extracted from the article]

Published
2022
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41. Digital ulcers in systemic sclerosis are associated with microangiopathic abnormalities of perilesional skin as assessed by capillaroscopy.

Author

Hughes, M, Moore, T, Manning, J, Dinsdale, G, Murray, A, Herrick, AL, and Herrick, A L

Subjects
ULCERS, CAPILLAROSCOPY, OPTICAL interference, SYSTEMIC scleroderma, FEASIBILITY studies, PATIENTS
Abstract

The article offers information on a study which examined the tolerability and feasibility of perilesional capillaroscopy in assessment of digital ulcer (DU) in systemic sclerosis (SSc) patients. It mentions that ultrasound gel and/or sterile were used for optical interface, and patient-reported opinion on the technique was collected. It concludes that perilesional DU capillaroscopy was considered feasible and well tolerated by the majority of patients.

Published
2017
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42. Imaging the microvasculature using nailfold capillaroscopy in patients with coronavirus disease-2019; A cross-sectional study.

Author

Wilkinson S, Wilkinson J, Grace A, Lyon D, Mellor M, Yunus T, Manning J, Dinsdale G, Berks M, Knight S, Bakerly N, Gebril A, Dark P, Herrick A, Taylor C, Dickinson M, and Murray A

Abstract

Objectives: It is understood that microvascular dysfunction plays a key role in the pathogenesis of SARS-CoV-2 coronavirus disease (COVID-19). The aim of this study was to evaluate the usefulness of an automated, quantitative nailfold capillaroscopy system in identifying microvascular changes in those confirmed with or having had COVID-19., Methods: Ninety-seven participants were enrolled into this study and grouped as follows: 52 participants with acute COVID-19 (further grouped by disease severity) and 45 participants with convalescent COVID-19 (further grouped into long COVID i.e. symptoms beyond 12 weeks, and fully recovered). Nailfold capillaroscopy images were obtained from the bilateral ring fingers using a Dino-Lite CapillaryScope 200 Pro, a small USB handheld microscope. Images were assessed quantitatively using bespoke automated measurement software and the number of haemorrhages noted for each participant., Results: Capillaries were predominantly 'normal' in appearance with narrow capillary loops and evenly distributed, but with an increased number of haemorrhages (40 % in the convalescent group and 17 % in the acute group, p = 0.007). There was no statistically significant difference in the mean width of capillaries (20.9-21.8 μm) or vessel density (9.6-9.9 caps/mm; acute and convalescent group, respectively)., Conclusions: This study has demonstrated the feasibility of nailfold capillaroscopy at the critical care bedside. Capillary structure appeared normal across all groups of individuals affected by COVID-19. Although the small differences in the microvasculature in recovered patients compared to in acutely unwell patients may suggest delayed structural change due to COVID-19, these differences are unlikely to be clinically relevant. Longitudinal studies would be required to explore this in more detail., Competing Interests: Declaration of competing interest The authors declare no conflicts of interest., (Copyright © 2025. Published by Elsevier Inc.)

Published
2025
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43. Longitudinal trajectories of the Scleroderma Health Assessment Questionnaire (SHAQ) visual analogue scales: a retrospective cohort study.

Author

Hughes M, Sylvestre Y, Manning J, Wragg E, Mandzuk M, Samaranayaka M, Dinsdale G, Vail A, and Herrick AL

Abstract

Objective: Systemic sclerosis (SSc) is disabling. However, the different factors contributing to this disability and how these change over time have been little studied. Our aim was to examine the trajectories over time of the six visual analogue scales (VAS) of the scleroderma HAQ (SHAQ), associations of disease-related factors with these trajectories, and relationships with overall functional ability., Methods: This was a retrospective study of data collected prospectively from patients attending a single tertiary centre between 2005 and 2022. VAS (pain, intestinal, breathing, Raynaud's [RP], digital ulcers, 'overall') were analysed using linear mixed-effects models, and relationships between the six VAS and functional ability (HAQ-DI) and scleroderma functional index [FI] by correlating the average gradients obtained from individual linear regressions., Results: 537 patients with at least two time-points were included, followed for a mean (SD) of 6.8 (4.2) years. VAS intestinal scores increased (ie worsened) by 0.085 points (95% CI = 0.041-0.130,p<0.001) per year, VAS breathing by 0.056 points (95% CI = 0.016-0.096,p=0.006) and VAS overall scores by 0.073 points (95% CI = 0.032-0.114,p=0.001). The longer the duration between RP onset and SSc diagnosis, the lower the VAS pain and VAS intestinal scores. The odds of having at least one digital ulcer reduced with disease duration, with diffuse cutaneous subtype and with anti-Scl70 positivity. Average gradients for all six VAS scales correlated (albeit variably/weakly) with HAQ-DI and scleroderma FI gradients., Conclusion: Longitudinal assessment of the six SHAQ VAS, and associations of baseline characteristics with the individual VAS time courses, provide insights into disease trajectory and overall disability., (© The Author(s) 2024. Published by Oxford University Press on behalf of the British Society for Rheumatology. All rights reserved. For permissions, please email: journals.permissions@oup.com.)

Published
2024
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44. Development of a measuring app for systemic sclerosis-related digital ulceration (SALVE: Scleroderma App for Lesion VErification).

Author

Davison AK, Krishan A, New RP, Murray A, Dinsdale G, Manning J, Hall F, Pauling JD, Vail A, Kearney K, Patrick H, Hughes M, Dixon W, Dickinson M, Taylor C, and Herrick AL

Subjects
Humans, Female, Male, Middle Aged, Aged, Photography, Pain Measurement, Smartphone, Adult, Scleroderma, Systemic complications, Mobile Applications, Skin Ulcer etiology, Fingers pathology, Patient Reported Outcome Measures
Abstract

Objectives: To test the hypothesis that photographs (in addition to self-reported data) can be collected daily by patients with SSc using a smartphone app designed specifically for digital lesions, and could provide an objective outcome measure for use in clinical trials., Methods: An app was developed to collect images and patient-reported outcome measures including Pain score and the Hand Disability in Systemic Sclerosis-Digital Ulcers (HDISS-DU) questionnaire. Participants photographed their lesion(s) each day for 30 days and uploaded images to a secure repository. Lesions were analysed both manually and automatically, using a machine learning approach., Results: Twenty-five patients with SSc-related digital lesions consented, of whom 19 completed the 30-day study, with evaluable data from 27 lesions. Mean (s.d.) baseline Pain score was 5.7 (2.4) and HDISS-DU 2.2 (0.9), indicating high lesion- and disease-related morbidity. A total of 506 images were used in the analysis [mean number of used images per lesion 18.7 (s.d. 8.3)]. Mean (s.d.) manual and automated lesion areas at day 1 were 11.6 (16.0) and 13.9 (16.7) mm2, respectively. Manual area decreased by 0.08 mm2 per day (2.4 mm2 over 30 days) and automated area by 0.1 mm2 (3.0 mm2 over 30 days). Average gradients of manual and automated measurements over 30 days correlated strongly (r = 0.81). Manual measurements were on average 40% lower than automated ones, with wide limits of agreement., Conclusion: Even patients with significant hand disability were able to use the app. Automated measurement of finger lesions could be valuable as an outcome measure in clinical trials., (© The Author(s) 2024. Published by Oxford University Press on behalf of the British Society for Rheumatology.)

Published
2024
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45. No seasonal trends in referrals for vascular investigations: insight into the diagnosis of Raynaud's phenomenon and systemic sclerosis.

Author

Dinsdale G, Mandzuk M, Manning J, Herrick AL, Samaranayaka M, and Hughes M

Subjects
Humans, Female, Male, Middle Aged, Predictive Value of Tests, Adult, Practice Patterns, Physicians' trends, Raynaud Disease diagnosis, Raynaud Disease epidemiology, Scleroderma, Systemic diagnosis, Scleroderma, Systemic epidemiology, Referral and Consultation trends, Seasons
Published
2024
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46. Mobile phone thermography of the toes in patients with systemic sclerosis-a pilot study.

Author

Lim R, Dinsdale G, Manning J, Heal C, Murray A, and Herrick AL

Abstract

Objectives: To investigate the hypotheses that in patients with SSc, the temperature gradient between the dorsum of the foot and toes (distal-dorsal difference [DDD]) is 'more negative' (toes cooler) than in healthy controls, is greatest along the first (great) toe and that the severities of thermographic abnormalities in the feet and hands are correlated., Methods: Thermographic images of the dorsum of each hand and foot were captured using a thermal camera attached to an iPhone in 40 patients with SSc and 20 healthy controls. DDDs along the fingers (index, middle, ring and little) and toes (great toe and 'others') were measured., Results: There was a non-significant trend for the great toes to be colder in patients with SSc than in controls. The mean great toe DDD was more negative in patients (right: -2.89°C, left: -2.91°C, mean: -2.90°C) than in controls (right: -2.36°C, left: -2.42°C, mean: -2.39°C) ( P  = 0.37 for mean values). Patients' great toes were colder than 'other' (lesser) toes (right: -2.58°C, left: -2.63°C), although not significantly. In patients with SSc, finger and great toe temperature gradients were correlated ( r  = 0.406, ρ = 0.01)., Conclusion: Our findings suggest that the great toe is the coldest in patients with SSc and that patients with the coldest fingers tend to have the coldest toes. Severe RP symptoms in the hands should prompt podiatry assessment and foot care education. Mobile phone thermography is a convenient tool for assessing the digital vasculature but first requires validation in larger studies with a longitudinal component., (© The Author(s) 2024. Published by Oxford University Press on behalf of the British Society for Rheumatology.)

Published
2024
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47. Non-invasive imaging and clinical skin scores in juvenile localized scleroderma.

Author

Pain CE, Murray A, Dinsdale G, Marsden A, Manning J, Riley P, Leone V, Amin T, Zulian F, and Herrick AL

Subjects
Humans, Female, Male, Child, Prospective Studies, Adolescent, Skin Temperature, Ultrasonography methods, Severity of Illness Index, Laser-Doppler Flowmetry, Child, Preschool, Scleroderma, Localized diagnostic imaging, Skin diagnostic imaging, Skin pathology, Thermography methods, Scleroderma, Systemic
Abstract

Objectives: To evaluate whether in juvenile localized scleroderma (JLS), non-invasive imaging can differentiate affected from non-affected skin and whether imaging correlates with a validated skin score [Localised Scleroderma Cutaneous Assessment Tool (LoSCAT)]., Methods: A total of 25 children with JLS were recruited into a prospective study and a single 'target' lesion was selected. High-frequency ultrasound (HFUS, measuring skin thickness), infrared thermography (IRT, skin temperature), laser Doppler imaging (LDI, skin blood flow) and multispectral imaging (MSI, oxygenation) were performed at four sites: two of affected skin (centre and inner edge of lesion) and two of non-affected skin (1 cm from the edge of the lesion 'outer' and contralateral non-affected side) at four visits at 3 month intervals., Results: Differences between affected and non-affected skin were detected with all four techniques. Compared with non-affected skin, affected skin was thinner (P < 0.001), with higher temperature (P < 0.001-0.006), perfusion (P < 0.001-0.039) and oxygenation (P < 0.001-0.028). Lesion skin activity (LoSCAT) was positively correlated with centre HFUS [r = 0.32 (95% CI 0.02, 0.61), P = 0.036] and negatively correlated with centre LDI [r = -0.26 (95% CI -0.49, -0.04), P = 0.022]. Lesion skin damage was positively correlated with centre and inner IRT [r = 0.43 (95% CI 0.19, 0.67), P < 0.001 and r = 0.36 (95% CI 0.12, 0.59), P = 0.003, respectively] and with centre and inner LDI [r = 0.37 (95% CI 0.05, 0.69), P = 0.024 and r = 0.41 (95% CI 0.08, 0.74), P = 0.015, respectively]., Conclusion: Non-invasive imaging can detect differences between affected and non-affected skin in JLS and may help to differentiate between activity (thicker, less well-perfused skin) and damage (thinner, highly perfused skin)., (© The Author(s) 2023. Published by Oxford University Press on behalf of the British Society for Rheumatology. All rights reserved. For permissions, please email: journals.permissions@oup.com.)

Published
2024
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49. A deep learning system for quantitative assessment of microvascular abnormalities in nailfold capillary images.

Author

Bharathi PG, Berks M, Dinsdale G, Murray A, Manning J, Wilkinson S, Cutolo M, Smith V, Herrick AL, and Taylor CJ

Subjects
Humans, Nails diagnostic imaging, Nails blood supply, Sensitivity and Specificity, ROC Curve, Capillaries diagnostic imaging, Microscopic Angioscopy methods, Deep Learning, Scleroderma, Systemic
Abstract

Objectives: Nailfold capillaroscopy is key to timely diagnosis of SSc, but is often not used in rheumatology clinics because the images are difficult to interpret. We aimed to develop and validate a fully automated image analysis system to fill this gap., Methods: We mimicked the image interpretation strategies of SSc experts, using deep learning networks to detect each capillary in the distal row of vessels and make morphological measurements. We combined measurements from multiple fingers to give a subject-level probability of SSc.We trained the system using high-resolution images from 111 subjects (group A) and tested on images from subjects not in the training set: 132 imaged at high-resolution (group B); 66 imaged with a low-cost digital microscope (group C). Roughly half of each group had confirmed SSc, and half were healthy controls or had primary RP ('normal'). We also estimated the performance of SSc experts., Results: We compared automated SSc probabilities with the known clinical status of patients (SSc versus 'normal'), generating receiver operating characteristic curves (ROCs). For group B, the area under the ROC (AUC) was 97% (94-99%) [median (90% CI)], with equal sensitivity/specificity 91% (86-95%). For group C, the AUC was 95% (88-99%), with equal sensitivity/specificity 89% (82-95%). SSc expert consensus achieved sensitivity 82% and specificity 73%., Conclusion: Fully automated analysis using deep learning can achieve diagnostic performance at least as good as SSc experts, and is sufficiently robust to work with low-cost digital microscope images., (© The Author(s) 2023. Published by Oxford University Press on behalf of the British Society for Rheumatology.)

Published
2023
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