Ulcus cruris venosum: Was bringt die frühzeitige endovenöse Ablation bei venösen Ulzerationen?

2022 ◽  
pp. 1-2
Author(s):  
Markus Stücker
Keyword(s):  
Early Intervention ◽  
Intervention Group ◽  
Cost Effective ◽  
Quality Adjusted Life Year ◽  
Ulcer Recurrence ◽  
Venous Reflux ◽  
Endovenous Ablation ◽  
Quality Adjusted Life ◽  
Early Intervention Group

<b>Importance:</b> One-year outcomes from the Early Venous Reflux Ablation (EVRA) randomized trial showed accelerated venous leg ulcer healing and greater ulcer-free time for participants who are treated with early endovenous ablation of lower extremity superficial reflux. <b>Objective:</b> To evaluate the clinical and cost-effectiveness of early endovenous ablation of superficial venous reflux in patients with venous leg ulceration. <b>Design, Setting, and Participants:</b> Between October 24, 2013, and September 27, 2016, the EVRA randomized clinical trial enrolled 450 participants (450 legs) with venous leg ulceration of less than 6 months’ duration and superficial venous reflux. Initially, 6555 patients were assessed for eligibility, and 6105 were excluded for reasons including ulcer duration greater than 6 months, healed ulcer by the time of randomization, deep venous occlusive disease, and insufficient superficial venous reflux to warrant ablation therapy, among others. A total of 426 of 450 participants (94.7%) from the vascular surgery departments of 20 hospitals in the United Kingdom were included in the analysis for ulcer recurrence. Surgeons, participants, and follow-up assessors were not blinded to the treatment group. Data were analyzed from August 11 to November 4, 2019. <b>Interventions:</b> Patients were randomly assigned to receive compression therapy with early endovenous ablation within 2 weeks of randomization (early intervention, n  =  224) or compression with deferred endovenous treatment of superficial venous reflux (deferred intervention, n  =  226). Endovenous modality and strategy were left to the preference of the treating clinical team. <b>Main Outcomes and Measures:</b> The primary outcome for the extended phase was time to first ulcer recurrence. Secondary outcomes included ulcer recurrence rate and cost-effectiveness. <b>Results:</b> The early-intervention group consisted of 224 participants (mean [SD] age, 67.0 [15.5] years; 127 men [56.7%]; 206 White participants [92%]). The deferred-intervention group consisted of 226 participants (mean [SD] age, 68.9 [14.0] years; 120 men [53.1%]; 208 White participants [92%]). Of the 426 participants whose leg ulcer had healed, 121 (28.4%) experienced at least 1 recurrence during follow-up. There was no clear difference in time to first ulcer recurrence between the 2 groups (hazard ratio, 0.82; 95% CI, 0.57–1.17; P  =  .28). Ulcers recurred at a lower rate of 0.11 per person-year in the early-intervention group compared with 0.16 per person-year in the deferred-intervention group (incidence rate ratio, 0.658; 95% CI, 0.480–0.898; P  =  .003). Time to ulcer healing was shorter in the early-intervention group for primary ulcers (hazard ratio, 1.36; 95% CI, 1.12–1.64; P  =  .002). At 3 years, early intervention was 91.6% likely to be cost-effective at a willingness to pay of £20 000 ($26 283) per quality-adjusted life year and 90.8% likely at a threshold of £35 000 ($45 995) per quality-adjusted life year. <b>Conclusions and Relevance:</b> Early endovenous ablation of superficial venous reflux was highly likely to be cost-effective over a 3-year horizon compared with deferred intervention. Early intervention accelerated the healing of venous leg ulcers and reduced the overall incidence of ulcer recurrence. <b>Trial Registration:</b> ClinicalTrials.gov identifier: ISRCTN02335796.

Cost-efficacy of Knee Cartilage Defect Treatments in the United States

2019 ◽  
Vol 48 (1) ◽  
pp. 242-251 ◽  
Author(s):  
Joshua S. Everhart ◽  
Andrew B. Campbell ◽  
Moneer M. Abouljoud ◽  
J. Caid Kirven ◽  
David C. Flanigan
Keyword(s):  
United States ◽  
Cost Effective ◽  
International Knee Documentation Committee ◽  
The United States ◽  
Quality Adjusted Life Year ◽  
Knee Cartilage ◽  
Osteochondral Autograft ◽  
Cost Efficacy ◽  
Quality Adjusted Life

Background: Multiple knee cartilage defect treatments are available in the United States, although the cost-efficacy of these therapies in various clinical scenarios is not well understood. Purpose/Hypothesis: The purpose was to determine cost-efficacy of cartilage therapies in the United States with available mid- or long-term outcomes data. The authors hypothesized that cartilage treatment strategies currently approved for commercial use in the United States will be cost-effective, as defined by a cost <$50,000 per quality-adjusted life-year over 10 years. Study Design: Systematic review. Methods: A systematic search was performed for prospective cartilage treatment outcome studies of therapies commercially available in the United States with minimum 5-year follow-up and report of pre- and posttreatment International Knee Documentation Committee subjective scores. Cost-efficacy over 10 years was determined with Markov modeling and consideration of early reoperation or revision surgery for treatment failure. Results: Twenty-two studies were included, with available outcomes data on microfracture, osteochondral autograft, osteochondral allograft (OCA), autologous chondrocyte implantation (ACI), and matrix-induced ACI. Mean improvement in International Knee Documentation Committee subjective scores at final follow-up ranged from 17.7 for microfracture of defects >3 cm2 to 36.0 for OCA of bipolar lesions. Failure rates ranged from <5% for osteochondral autograft for defects requiring 1 or 2 plugs to 46% for OCA of bipolar defects. All treatments were cost-effective over 10 years in the baseline model if costs were increased 50% or if failure rates were increased an additional 15%. However, if efficacy was decreased by a minimum clinically important amount, then ACI (periosteal cover) of femoral condylar lesions ($51,379 per quality-adjusted life-year), OCA of bipolar lesions ($66,255) or the patella ($66,975), and microfracture of defects >3 cm2 ($127,782) became cost-ineffective over 10 years. Conclusion: Currently employed treatments for knee cartilage defects in the United States are cost-effective in most clinically acceptable applications. Microfracture is not a cost-effective initial treatment of defects >3 cm2. OCA transplantation of the patella or bipolar lesions is potentially cost-ineffective and should be used judiciously.

scholarly journals Early versus deferred endovenous ablation of superficial venous reflux in patients with venous ulceration: the EVRA RCT

2019 ◽  
Vol 23 (24) ◽  
pp. 1-96 ◽  
Author(s):  
Manjit S Gohel ◽  
Francine Heatley ◽  
Xinxue Liu ◽  
Andrew Bradbury ◽  
Richard Bulbulia ◽  
...  
Keyword(s):  
Ulcer Healing ◽  
Cost Effective ◽  
Compression Therapy ◽  
Health Technology ◽  
Free Time ◽  
Venous Reflux ◽  
Venous Ulceration ◽  
Endovenous Ablation

Background Venous ulceration is a common and costly health-care issue worldwide, with poor healing rates greatly affecting patient quality of life. Compression bandaging has been shown to improve healing rates and reduce recurrence, but does not address the underlying cause, which is often superficial venous reflux. Surgical correction of the reflux reduces ulcer recurrence; however, the effect of early endovenous ablation of superficial venous reflux on ulcer healing is unclear. Objectives To determine the clinical effectiveness and cost-effectiveness of compression therapy with early endovenous ablation of superficial venous reflux compared with compression therapy with deferred endovenous ablation in patients with venous ulceration. Design A pragmatic, two-arm, multicentre, parallel-group, open randomised controlled trial with a health economic evaluation. Setting Secondary care vascular centres in England. Participants Patients aged ≥ 18 years with a venous leg ulcer of between 6 weeks’ and 6 months’ duration and an ankle–brachial pressure index of ≥ 0.8 who could tolerate compression and were deemed suitable for endovenous ablation of superficial venous reflux. Interventions Participants were randomised 1 : 1 to either early ablation (compression therapy and superficial endovenous ablation within 2 weeks of randomisation) or deferred ablation (compression therapy followed by endovenous ablation once the ulcer had healed). Main outcome measures The primary outcome measure was time from randomisation to ulcer healing, confirmed by blinded assessment. Secondary outcomes included 24-week ulcer healing rates, ulcer-free time, clinical success (in addition to quality of life), costs and quality-adjusted life-years (QALYs). All analyses were performed on an intention-to-treat basis. Results A total of 450 participants were recruited (224 to early and 226 to deferred superficial endovenous ablation). Baseline characteristics were similar between the two groups. Time to ulcer healing was shorter in participants randomised to early superficial endovenous ablation than in those randomised to deferred ablation [hazard ratio 1.38, 95% confidence interval (CI) 1.13 to 1.68; p = 0.001]. Median time to ulcer healing was 56 (95% CI 49 to 66) days in the early ablation group and 82 (95% CI 69 to 92) days in the deferred ablation group. The ulcer healing rate at 24 weeks was 85.6% in the early ablation group, compared with 76.3% in the deferred ablation group. Median ulcer-free time was 306 [interquartile range (IQR) 240–328] days in the early ablation group and 278 (IQR 175–324) days in the deferred endovenous ablation group (p = 0.002). The most common complications of superficial endovenous ablation were pain and deep-vein thrombosis. Differences in repeated measures of Aberdeen Varicose Vein Questionnaire scores (p < 0.001), EuroQol-5 Dimensions index values (p = 0.03) and Short Form questionnaire-36 items body pain (p = 0.05) over the follow-up period were observed, in favour of early ablation. The mean difference in total costs between the early ablation and deferred ablation groups was £163 [standard error (SE) £318; p = 0.607]; however, there was a substantial and statistically significant gain in QALY over 1 year [mean difference between groups 0.041 (SE 0.017) QALYs; p = 0.017]. The incremental cost-effectiveness ratio of early ablation at 1 year was £3976 per QALY, with a high probability (89%) of being more cost-effective than deferred ablation at conventional UK decision-making thresholds (currently £20,000 per QALY). Sensitivity analyses using alternative statistical models give qualitatively similar results. Limitations Only 7% of screened patients were recruited, treatment regimens varied significantly and technical success was assessed only in the early ablation group. Conclusions Early endovenous ablation of superficial venous reflux, in addition to compression therapy and wound dressings, reduces the time to healing of venous leg ulcers, increases ulcer-free time and is highly likely to be cost-effective. Future work Longer-term follow-up is ongoing and will determine if early ablation will affect recurrence rates in the medium and long term. Trial registration Current Controlled Trials ISRCTN02335796. Funding This project was funded by the National Institute for Health Research (NIHR) Health Technology Assessment programme and will be published in full in Health Technology Assessment; Vol. 23, No. 24. See the NIHR Journals Library website for further project information.

Cost–effectiveness analysis of ribociclib plus fulvestrant for hormone receptor-positive/human EGF receptor 2-negative breast cancer

Immunotherapy ◽  
2021 ◽  
Author(s):  
Wei Jiang ◽  
Zhichao He ◽  
Tiantian Zhang ◽  
Chongchong Guo ◽  
Jianli Zhao ◽  
...  
Keyword(s):  
Breast Cancer ◽  
Cost Effectiveness ◽  
Hormone Receptor ◽  
Egf Receptor ◽  
Cost Effective ◽  
Quality Adjusted Life Year ◽  
Cost Effectiveness Ratio ◽  
Hormone Receptor Positive ◽  
The Cost ◽  
Quality Adjusted Life

Aim: To evaluate the cost–effectiveness of ribociclib plus fulvestrant versus fulvestrant in hormone receptor-positive/human EGF receptor 2-negative advanced breast cancer. Materials & methods: A three-state Markov model was developed to evaluate the costs and effectiveness over 10 years. Direct costs and utility values were obtained from previously published studies. We calculated incremental cost–effectiveness ratio to evaluate the cost–effectiveness at a willingness-to-pay threshold of $150,000 per additional quality-adjusted life year. Results: The incremental cost–effectiveness ratio was $1,073,526 per quality-adjusted life year of ribociclib plus fulvestrant versus fulvestrant. Conclusions: Ribociclib plus fulvestrant is not cost-effective versus fulvestrant in the treatment of advanced hormone receptor-positive/human EGF receptor 2-negative breast cancer. When ribociclib is at 10% of the full price, ribociclib plus fulvestrant could be cost-effective.

scholarly journals A one-year cost–utility analysis of REBOA versus RTACC for non-compressible torso haemorrhage

Trauma ◽  
2017 ◽  
Vol 21 (1) ◽  
pp. 45-54 ◽  
Author(s):  
Maxwell S Renna ◽  
Cristiano van Zeller ◽  
Farah Abu-Hijleh ◽  
Cherlyn Tong ◽  
Jasmine Gambini ◽  
...  
Keyword(s):  
Cost Effectiveness ◽  
Cost Effective ◽  
Quality Adjusted Life Year ◽  
Cost Utility ◽  
Incremental Cost Effectiveness Ratio ◽  
Cost Utility Analysis ◽  
Utility Analysis ◽  
Cost Effectiveness Ratio ◽  
One Year ◽  
Quality Adjusted Life

Introduction Major trauma is a leading cause of death and disability in young adults, especially from massive non-compressible torso haemorrhage. The standard technique to control distal haemorrhage and maximise central perfusion is resuscitative thoracotomy with aortic cross-clamping (RTACC). More recently, the minimally invasive technique of resuscitative endovascular balloon occlusion of the aorta (REBOA) has been developed to similarly limit distal haemorrhage without the morbidity of thoracotomy; cost–utility studies on this intervention, however, are still lacking. The aim of this study was to perform a one-year cost–utility analysis of REBOA as an intervention for patients with major traumatic non-compressible abdominal haemorrhage, compared to RTACC within the U.K.’s National Health Service. Methods A retrospective analysis of the outcomes following REBOA and RTACC was conducted based on the published literature of survival and complication rates after intervention. Utility was obtained from studies that used the EQ-5D index and from self-conducted surveys. Costs were calculated using 2016/2017 National Health Service tariff data and supplemented from further literature. A cost–utility analysis was then conducted. Results A total of 12 studies for REBOA and 20 studies for RTACC were included. The mean injury severity scores for RTACC and REBOA were 34 and 39, and mean probability of death was 9.7 and 54%, respectively. The incremental cost-effectiveness ratio of REBOA when compared to RTACC was £44,617.44 per quality-adjusted life year. The incremental cost-effectiveness ratio, by exceeding the National Institute for Health and Clinical Effectiveness’s willingness-to-pay threshold of £30,000/quality-adjusted life year, suggests that this intervention is not cost-effective in comparison to RTACC. However, REBOA yielded a 157% improvement in utility with a comparatively small cost increase of 31.5%. Conclusion Although REBOA has not been found to be cost-effective when compared to RTACC, ultimately, clinical experience and expertise should be the main factor in driving the decision over which intervention to prioritise in the emergency context.

scholarly journals Prediabetes in pregnancy, can early intervention improve outcomes? A feasibility study for a parallel randomised clinical trial

BMJ Open ◽  
2018 ◽  
Vol 8 (3) ◽  
pp. e018493 ◽  
Author(s):  
Ruth C E Hughes ◽  
Janet Rowan ◽  
Jonathan Williman
Keyword(s):  
Blood Glucose ◽  
New Zealand ◽  
Early Intervention ◽  
Caesarean Section ◽  
Outcome Measures ◽  
Standard Care ◽  
Intervention Group ◽  
Blood Glucose Monitoring ◽  
Oral Glucose ◽  
Early Intervention Group

ObjectiveMeasurement of glycated haemoglobin (HbA1c) in early pregnancy is routine in New Zealand to identify women with diabetes and prediabetes. However, the benefit of early intervention in women with prediabetes is inconclusive. Our aim was to test the feasibility of a two-arm parallel randomised controlled trial of standard care versus early intervention in pregnancies complicated by prediabetes.SettingTwo tertiary referral centres in New Zealand.ParticipantsWomen <14 weeks’ gestation and HbA1c ≥5.9%–6.4% (41–46 mmol/mol) measured at booking, without pre-existing diabetes.InterventionsRandomisation was done by remote web-based allocation into one of two groups. Women in the early intervention group attended an antenatal diabetes clinic, commenced daily home blood glucose monitoring, and medication was prescribed if lifestyle measures failed to maintain target blood glucose levels. Controls received lifestyle education, continued standard care with their midwife and/or obstetrician, and were asked to perform a 75 g oral glucose tolerance test at 24 weeks’ gestation with a referral to clinic if this test was positive. Both groups received lifestyle questionnaires at recruitment and in late pregnancy.Outcome measuresRecruitment rate, adherence to protocol and validation of potential primary outcomes.ResultsRecruitment rates were lower than expected, especially in Māori and Pacific women. Non-adherence to allocated treatment protocol was significant, 42% (95% CI 24% to 61%) in the early intervention group and 30% (95% CI 16% to 51%) in controls. Caesarean section and pre-eclampsia were signalled as potential primary outcomes, due to both the high observed incidence in the control group and ease of measurement.ConclusionsFor a future definitive trial, extending the gestation of eligibility and stepped-wedge cluster randomisation may overcome the identified feasibility issues. Consistent with published observational data, pre-eclampsia and emergency caesarean section could be included as primary outcome measures, both of which have a significant impact on maternal and neonatal morbidity and healthcare costs.Trial registration numberACTRN12615000904572; Pre-results.

Cost-effectiveness of hydrotherapy versus land-based therapy in patients with musculoskeletal disorders in Singapore

2018 ◽  
Vol 41 (2) ◽  
pp. 391-398
Author(s):  
Monica Teng ◽  
Hui Jun Zhou ◽  
Liang Lin ◽  
Pang Hung Lim ◽  
Doreen Yeo ◽  
...  
Keyword(s):  
Cost Effectiveness ◽  
Musculoskeletal Disorders ◽  
Cost Effective ◽  
Target Population ◽  
Quality Adjusted Life Year ◽  
Decision Analytic Model ◽  
Published Data ◽  
Total Knee ◽  
The Cost ◽  
Quality Adjusted Life

Abstract Background The study evaluated the cost-effectiveness of hydrotherapy versus land-based therapy in patients with musculoskeletal disorders (MSDs) in Singapore. Methods A decision-analytic model was constructed to compare the cost-effectiveness of hydrotherapy to land-based therapy over 3 months from societal perspective. Target population comprised patients with low back pain (LBP), osteoarthritis (OA), rheumatoid arthritis (RA), total hip replacement (THR) and total knee replacement (TKR). Subgroup analyses were carried out to determine the cost-effectiveness of hydrotherapy in individual MSDs. Relative treatment effects were obtained through a systematic review of published data. Results Compared to land-based therapy, hydrotherapy was associated with an incremental cost-effectiveness ratio (ICER) of SGD 27 471 per quality-adjusted life-year (QALY) gained, which was below the willingness-to-pay threshold of SGD 70 000 per QALY (one gross domestic product per capita in Singapore in 2015). For the respective MSDs, hydrotherapy were dominant (more effective and less costly) in THR and TKR, cost-effective for LBP and RA, and not cost-effective for OA. Treatment adherence and cost of hydrotherapy were key drivers to the ICER values. Conclusions Hydrotherapy was a cost-effective rehabilitation compared to land-based therapy for a population with MSDs in Singapore. However, the benefit of hydrotherapy was not observed in patients with OA.

scholarly journals Comparative clinical effects and cost–effectiveness of maximum androgen blockade, docetaxel with androgen deprivation therapy and ADT alone for the treatment of mHSPC in China

2019 ◽  
Vol 8 (11) ◽  
pp. 865-877 ◽  
Author(s):  
Maobai Liu ◽  
Shuli Qu ◽  
Yanjun Liu ◽  
Xingxing Yao ◽  
Wei Jiang
Keyword(s):  
Cost Effectiveness ◽  
Incremental Cost ◽  
Androgen Deprivation Therapy ◽  
Cost Effective ◽  
Quality Adjusted Life Year ◽  
Incremental Cost Effectiveness Ratio ◽  
Clinical Effects ◽  
Cost Effectiveness Ratio ◽  
Quality Adjusted Life ◽  
Androgen Blockade

Aim: To compare the clinical effects and cost–effectiveness of maximum androgen blockade (MAB), docetaxel to androgen deprivation therapy (Doc-ADT) and ADT alone for the treatment of patients with metastatic hormone-sensitive prostate cancer in China. Methods: A network meta-analysis and a Markov model were adopted for effectiveness and economic evaluation. Results: The hazard ratios of overall survival and progression-free survival were 0.782 and 0.628 for Doc-ADT versus ADT alone; 0.897 and 0.824 for MAB versus ADT alone. Doc-ADT was cost-effective compared with MAB and ADT alone, with an incremental cost–effectiveness ratio of CNY 96,848 and CNY 67,758 per quality-adjusted life year, respectively. MAB was cost-effective compared with ADT alone, with an incremental cost–effectiveness ratio of CNY 137,487 per quality-adjusted life year. Conclusion: Doc-ADT is likely the optimal option from the perspective of both clinical outcomes and economic considerations.

scholarly journals Cost-Effectiveness Evaluation of Etoricoxib versus Celecoxib and Nonselective NSAIDs in the Treatment of Ankylosing Spondylitis in Norway

2011 ◽  
Vol 2011 ◽  
pp. 1-14 ◽  
Author(s):  
Jeroen P. Jansen ◽  
Stephanie D. Taylor
Keyword(s):  
Cost Effectiveness ◽  
Ankylosing Spondylitis ◽  
Time Horizon ◽  
Cost Effective ◽  
Quality Adjusted Life Year ◽  
Quality Adjusted Life Years ◽  
Life Years ◽  
Cost Effective Treatment ◽  
Ceiling Ratio ◽  
Quality Adjusted Life

Objectives. To evaluate the cost-effectiveness of etoricoxib (90 mg) relative to celecoxib (200/400 mg), and the nonselective NSAIDs naproxen (1000 mg) and diclofenac (150 mg) in the initial treatment of ankylosing spondylitis in Norway.Methods. A previously developed Markov state-transition model was used to estimate costs and benefits associated with initiating treatment with the different competing NSAIDs. Efficacy, gastrointestinal and cardiovascular safety, and resource use data were obtained from the literature. Data from different studies were synthesized and translated into direct costs and quality adjusted life years by means of a Bayesian comprehensive decision modeling approach.Results. Over a 30-year time horizon, etoricoxib is associated with about 0.4 more quality adjusted life years than the other interventions. At 1 year, naproxen is the most cost-saving strategy. However, etoricoxib is cost and quality adjusted life year saving relative to celecoxib, as well as diclofenac and naproxen after 5 years of follow-up. For a willingness-to-pay ceiling ratio of 200,000 Norwegian krones per quality adjusted life year, there is a >95% probability that etoricoxib is the most-cost-effective treatment when a time horizon of 5 or more years is considered.Conclusions. Etoricoxib is the most cost-effective NSAID for initiating treatment of ankylosing spondylitis in Norway.

scholarly journals Interventions to reduce the risk of surgically transmitted Creutzfeldt–Jakob disease: a cost-effective modelling review

2020 ◽  
Vol 24 (11) ◽  
pp. 1-150 ◽  
Author(s):  
Matt Stevenson ◽  
Lesley Uttley ◽  
Jeremy E Oakley ◽  
Christopher Carroll ◽  
Stephen E Chick ◽  
...  
Keyword(s):  
Cost Effectiveness ◽  
Health Technology Assessment ◽  
Technology Assessment ◽  
Cost Effective ◽  
Health Technology ◽  
Quality Adjusted Life Year ◽  
Expert Elicitation ◽  
Jakob Disease ◽  
Single Use ◽  
Quality Adjusted Life

Background Creutzfeldt–Jakob disease is a fatal neurological disease caused by abnormal infectious proteins called prions. Prions that are present on surgical instruments cannot be completely deactivated; therefore, patients who are subsequently operated on using these instruments may become infected. This can result in surgically transmitted Creutzfeldt–Jakob disease. Objective To update literature reviews, consultation with experts and economic modelling published in 2006, and to provide the cost-effectiveness of strategies to reduce the risk of surgically transmitted Creutzfeldt–Jakob disease. Methods Eight systematic reviews were undertaken for clinical parameters. One review of cost-effectiveness was undertaken. Electronic databases including MEDLINE and EMBASE were searched from 2005 to 2017. Expert elicitation sessions were undertaken. An advisory committee, convened by the National Institute for Health and Care Excellence to produce guidance, provided an additional source of information. A mathematical model was updated focusing on brain and posterior eye surgery and neuroendoscopy. The model simulated both patients and instrument sets. Assuming that there were potentially 15 cases of surgically transmitted Creutzfeldt–Jakob disease between 2005 and 2018, approximate Bayesian computation was used to obtain samples from the posterior distribution of the model parameters to generate results. Heuristics were used to improve computational efficiency. The modelling conformed to the National Institute for Health and Care Excellence reference case. The strategies evaluated included neither keeping instruments moist nor prohibiting set migration; ensuring that instruments were kept moist; prohibiting instrument migration between sets; and employing single-use instruments. Threshold analyses were undertaken to establish prices at which single-use sets or completely effective decontamination solutions would be cost-effective. Results A total of 169 papers were identified for the clinical review. The evidence from published literature was not deemed sufficiently strong to take precedence over the distributions obtained from expert elicitation. Forty-eight papers were identified in the review of cost-effectiveness. The previous modelling structure was revised to add the possibility of misclassifying surgically transmitted Creutzfeldt–Jakob disease as another neurodegenerative disease, and assuming that all patients were susceptible to infection. Keeping instruments moist was estimated to reduce the risk of surgically transmitted Creutzfeldt–Jakob disease cases and associated costs. Based on probabilistic sensitivity analyses, keeping instruments moist was estimated to on average result in 2.36 (range 0–47) surgically transmitted Creutzfeldt–Jakob disease cases (across England) caused by infection occurring between 2019 and 2023. Prohibiting set migration or employing single-use instruments reduced the estimated risk of surgically transmitted Creutzfeldt–Jakob disease cases further, but at considerable cost. The estimated costs per quality-adjusted life-year gained of these strategies in addition to keeping instruments moist were in excess of £1M. It was estimated that single-use instrument sets (currently £350–500) or completely effective cleaning solutions would need to cost approximately £12 per patient to be cost-effective using a £30,000 per quality-adjusted life-year gained value. Limitations As no direct published evidence to implicate surgery as a cause of Creutzfeldt–Jakob disease has been found since 2005, the estimations of potential cases from elicitation are still speculative. A particular source of uncertainty was in the number of potential surgically transmitted Creutzfeldt–Jakob disease cases that may have occurred between 2005 and 2018. Conclusions Keeping instruments moist is estimated to reduce the risk of surgically transmitted Creutzfeldt–Jakob disease cases and associated costs. Further surgical management strategies can reduce the risks of surgically transmitted Creutzfeldt–Jakob disease but have considerable associated costs. Study registration This study is registered as PROSPERO CRD42017071807. Funding This project was funded by the National Institute for Health Research (NIHR) Health Technology Assessment programme and will be published in full in Health Technology Assessment; Vol. 24, No. 11. See the NIHR Journals Library website for further project information.

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