Cost-effectiveness of laser Doppler imaging in burn care in the Netherlands

M Jenda Hop, Jakob Hiddingh, Carlijn Stekelenburg, Hester C Kuipers, Esther Middelkoop, Marianne K Nieuwenhuis, Suzanne Polinder, Margriet E van Baar, LDI study group, M Jenda Hop, Jakob Hiddingh, Carlijn Stekelenburg, Hester C Kuipers, Esther Middelkoop, Marianne K Nieuwenhuis, Suzanne Polinder, Margriet E van Baar, LDI study group

Abstract

Background: Early accurate assessment of burn depth is important to determine the optimal treatment of burns. The method most used to determine burn depth is clinical assessment, which is the least expensive, but not the most accurate.Laser Doppler imaging (LDI) is a technique with which a more accurate (>95%) estimate of burn depth can be made by measuring the dermal perfusion. The actual effect on therapeutic decisions, clinical outcomes and the costs of the introduction of this device, however, are unknown. Before we decide to implement LDI in Dutch burn care, a study on the effectiveness and cost-effectiveness of LDI is necessary.

Methods/design: A multicenter randomised controlled trial will be conducted in the Dutch burn centres: Beverwijk, Groningen and Rotterdam. All patients treated as outpatient or admitted to a burn centre within 5 days post burn, with burns of indeterminate depth (burns not obviously superficial or full thickness) and a total body surface area burned of ≤ 20% are eligible. A total of 200 patients will be included. Burn depth will be diagnosed by both clinical assessment and laser Doppler imaging between 2-5 days post burn in all patients. Subsequently, patients are randomly divided in two groups: 'new diagnostic strategy' versus 'current diagnostic strategy'. The results of the LDI-scan will only be provided to the treating clinician in the 'new diagnostic strategy' group. The main endpoint is the effect of LDI on wound healing time.In addition we measure: a) the effect of LDI on other patient outcomes (quality of life, scar quality), b) the effect of LDI on diagnostic and therapeutic decisions, and c) the effect of LDI on total (medical and non-medical) costs and cost-effectiveness.

Discussion: This trial will contribute to our current knowledge on the use of LDI in burn care and will provide evidence on its cost-effectiveness.

Trial registration: NCT01489540.

Figures

Figure 1
Figure 1
Clinical appearance of a three-days-old flame burn in a woman of 21. The LDI scan shows a burn with a healing potential < 14 days of the right hand palm and a healing potential > 21 days of the right lower arm. Written consent was obtained from the participant to publish this figure.

References

    1. Monstrey S, Hoeksema H, Verbelen J, Pirayesh A, Blondeel P. Assessment of burn depth and burn wound healing potential. Burns. 2008;34(6):761–9. doi: 10.1016/j.burns.2008.01.009.
    1. Niazi ZB, Essex TJ, Papini R, Scott D, McLean NR, Black MJ. New laser Doppler scanner, a valuable adjunct in burn depth assessment. Burns. 1993;19(6):485–9. doi: 10.1016/0305-4179(93)90004-R.
    1. Jeng JC, Bridgeman A, Shivnan L, Thornton PM, Alam H, Clarke TJ, Jablonski KA, Jordan MH. Laser Doppler imaging determines need for excision and grafting in advance of clinical judgment: a prospective blinded trial. Burns. 2003;29(7):665–70. doi: 10.1016/S0305-4179(03)00078-0.
    1. Petrie N, Norbury W, Fogarty B, Philp B, Barrat J, Dziewulski P. Abstract book, 12th congress of the International Society for Burn Injuries. Yokahama: ISBI; 2004. The use of the laser Doppler imaging to reduce operative intervention in the treatment of paediatric burns.
    1. Kim LH, Ward D, Lam L, Holland AJ. The impact of laser Doppler imaging on time to grafting decisions in pediatric burns. J Burn Care Res. 2010;31(2):328–332. doi: 10.1097/BCR.0b013e3181d0f572.
    1. Ahn CS, Maitz PK. The true cost of burn. Burns. 2012;38(7):967–74. doi: 10.1016/j.burns.2012.05.016. Epub 2012 Jul 13.
    1. Hemington-Gorse SJ, Potokar TS, Drew PJ, Dickson WA. Burn care costing: The Welsh experience. Burns. 2009;35(2/3):378–82.
    1. Hoeksema H, Van de Sijpe K, Tondu T, Hamdi M, Van Landuyt K, Blondeel P, Monstrey S. Accuracy of early burn depth assessment by laser Doppler Imaging on different days post burn. Burns. 2009;35(1):36–45. doi: 10.1016/j.burns.2008.08.011.
    1. van den Bruel A, Cleemput I, Aertgeerts B, Ramaekers D, Buntinx F. The evaluation of diagnostic tests: evidence on technical and diagnostic accuracy, impact on patient outcome and cost-effectiveness is needed. J Clin Epidemiol. 2007;60(11):1116–22. doi: 10.1016/j.jclinepi.2007.03.015.
    1. Pape SA, Skouras CA, Byrne PO. An audit of the use of laser Doppler imaging(LDI) in the assessment of burns of intermediate depth. Burns. 2001;27(3):233–9. doi: 10.1016/S0305-4179(00)00118-2.
    1. Riordan CL, McDonough M, Davidson JM, Corley R, Perlov C, Barton R, Guy J, Nanney LB. Noncontact laser Doppler imaging in burn depth analysis of the extremities. J Burn Care Rehabil. 2003;24(4):177–86. doi: 10.1097/01.BCR.0000075966.50533.B0.
    1. Monstrey SM, Hoeksema H, Baker RD, Jeng J, Spence RS, Wilson D, Pape SA. Burn wound healing time assessed by laser Doppler imaging. Part 2: validation of a dedicated colour code for image interpretation. Burns. 2011;37(2):249–56. doi: 10.1016/j.burns.2010.08.013.
    1. Kloppenberg FW, Beerthuizen GI, ten Duis HJ. Perfusion of burn wounds assessed by laser doppler imaging is related to burn depth and healing time. Burns. 2001;27(4):359–63. doi: 10.1016/S0305-4179(00)00138-8.
    1. Holland AJ, Martin HC, Cass DT. Laser Doppler imaging prediction of burn wound outcome in children. Burns. 2002;28(1):11–7. doi: 10.1016/S0305-4179(01)00064-X.
    1. Hunink MG, Krestin GP. Study design for concurrent development, assessment, and implementation of new diagnostic imaging technology. Radiology. 2002;222(3):604–14. doi: 10.1148/radiol.2223010335.
    1. Bloemen MC, Boekema BK, Vlig M, van Zuijlen PP, Middelkoop E. Digital image analysis versus clinical assessment of wound epithelialization: a validation study. Burns. 2012;38(4):501–5. doi: 10.1016/j.burns.2012.02.003.
    1. Raat H, Landgraf JM, Oostenbrink R, Moll HA, Essink-Bot ML. Reliability and validity of the Infant and Toddler Quality of Life Questionnaire (ITQOL) in a general population and respiratory disease sample. Qual Life Res. 2007;16(3):445–60. doi: 10.1007/s11136-006-9134-8. Epub 2006 Nov 17.
    1. Dolan P. Modeling valuations for EuroQol health states. Med Care. Nov 1997;35(11):1095–1108.
    1. Stolk EA, Busschbach JJ, Vogels T. Performance of the EuroQol in children with imperforate anus. Qual Life Res. 2000;9(1):29–38. doi: 10.1023/A:1008923029886.
    1. Van Beeck EF, Larsen CF, Lyons RA, Meerding WJ, Mulder S, Essink-Bot ML. Guidelines for the conduction of follow-up studies measuring injuryrelateddisability. J Trauma. 2007;62(2):534–550. doi: 10.1097/TA.0b013e31802e70c7.
    1. Draaijers LJ, Botman YA, Tempelman FR, Kreis RW, Middelkoop E, van Zuijlen PP. Skin elasticity meter or subjective evaluation in scars: a reliability assessment. Burns. 2004;30(2):109–14. doi: 10.1016/j.burns.2003.09.003.
    1. Draaijers LJ, Tempelman FR, Botman YA, Kreis RW, Middelkoop E, van Zuijlen PP. Colour evaluation in scars: tristimulus colorimeter, narrow-band simple reflectance meter or subjective evaluation? Burns. 2004;30(2):103–7. doi: 10.1016/j.burns.2003.09.029.
    1. van der Wal MB, Tuinebreijer WE, Bloemen MC, Verhaegen PD, Middelkoop E, vanZuijlen PP. Rasch analysis of the Patient and Observer Scar Assessment Scale(POSAS) in burn scars. Qual Life Res. 2012;21(1):13–23. doi: 10.1007/s11136-011-9924-5. May 20.
    1. Hakkaart-van Roijen L, Tan SS, Bouwmans CAM. Handleiding voor kostenonderzoek; methoden en standaard kostprijzen voor economische evaluaties in de gezondheidszorg. Diemen: College voor zorgverzekeringen; 2004.
    1. Gold MR, Siegel JE, Russel LB, Weinstein MC. Cost-effectiveness in health and medicine. New York: Oxford University Press; 1996.
    1. Lamers LM. et al.Measuring the quality of life in economic evaluations: the Dutch EQ-5D tariff. Ned Tijdschr Geneeskd. 2005;149:1574–8.
    1. Touwse, Report of the Commission on Macroeconomics and Health: Macroeconomics and health: Investing in health for economic development. Geneva: WHO Commision on Macroeocnomics and Health; 2001.
    1. Bloemen MC, van der Wal MB, Verhaegen PD, Nieuwenhuis MK, van Baar ME, van Zuijlen PP, Middelkoop E. Clinical effectiveness of dermal substitution in burns by topical negative pressure: A multicenter randomized controlled trial. Wound Repair Regen. 2012;20(6):797–805. doi: 10.1111/j.1524-475X.2012.00845.x. Epub 2012 Oct 30.
    1. Altman DG. Practical statistics for medical research. London: Chapman and Hall; 1991.
    1. Doig GS, Simpson F. Randomization and allocation concealment: a practical guide for researchers. J Crit Care. 2005;20(2):187–91. doi: 10.1016/j.jcrc.2005.04.005. Jun, discussion 191–3.
    1. Wheeler JR, Harrison RV, Wolfe RA, Payne BC. The effects of burn severity and institutional differences on the costs of care. Med Care. 1983;21(12):1192–203. doi: 10.1097/00005650-198312000-00006. Dec.

Source: PubMed

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