RESUMEN
BACKGROUND: The National Health Service in England pledged >£365 million to improve access to mental healthcare services via Community Perinatal Mental Health Teams (CPMHTs) and reduce the rate of perinatal relapse in women with severe mental illness. This study aimed to explore changes in service use patterns following the implementation of CPMHTs in pregnant women with a history of specialist mental healthcare in England, and conduct a cost-analysis on these changes. METHODS: This study used a longitudinal cohort design based on existing routine administrative data. The study population was all women residing in England with an onset of pregnancy on or after 1st April 2016 and who gave birth on or before 31st March 2018 with pre-existing mental illness (N = 70,323). Resource use and costs were compared before and after the implementation of CPMHTs. The economic perspective was limited to secondary mental health services, and the time horizon was the perinatal period (from the start of pregnancy to 1-year post-birth, ~ 21 months). RESULTS: The percentage of women using community mental healthcare services over the perinatal period was higher for areas with CPMHTs (30.96%, n=9,653) compared to areas without CPMHTs (24.72%, n=9,615). The overall percentage of women using acute care services (inpatient and crisis resolution teams) over the perinatal period was lower for areas with CPMHTs (4.94%, n=1,540 vs. 5.58%, n=2,171), comprising reduced crisis resolution team contacts (4.41%, n=1,375 vs. 5.23%, n=2,035) but increased psychiatric admissions (1.43%, n=445 vs. 1.13%, n=441). Total mental healthcare costs over the perinatal period were significantly higher for areas with CPMHTs (fully adjusted incremental cost £111, 95% CI £29 to £192, p-value 0.008). CONCLUSIONS: Following implementation of CPMHTs, the percentage of women using acute care decreased while the percentage of women using community care increased. However, the greater use of inpatient admissions alongside greater use of community care resulted in a significantly higher mean cost of secondary mental health service use for women in the CPMHT group compared with no CPMHT. Increased costs must be considered with caution as no data was available on relevant outcomes such as quality of life or satisfaction with services.
Asunto(s)
Servicios de Salud Mental , Mujeres Embarazadas , Femenino , Humanos , Embarazo , Salud Mental , Calidad de Vida , Medicina Estatal , Estudios de Cohortes , Parto , Costos de la Atención en SaludRESUMEN
BACKGROUND: Endovenous laser ablation and ultrasound-guided foam sclerotherapy are recommended alternatives to surgery for the treatment of primary varicose veins, but their long-term comparative effectiveness remains uncertain. METHODS: In a randomized, controlled trial involving 798 participants with primary varicose veins at 11 centers in the United Kingdom, we compared the outcomes of laser ablation, foam sclerotherapy, and surgery. Primary outcomes at 5 years were disease-specific quality of life and generic quality of life, as well as cost-effectiveness based on models of expected costs and quality-adjusted life-years (QALYs) gained that used data on participants' treatment costs and scores on the EuroQol EQ-5D questionnaire. RESULTS: Quality-of-life questionnaires were completed by 595 (75%) of the 798 trial participants. After adjustment for baseline scores and other covariates, scores on the Aberdeen Varicose Vein Questionnaire (on which scores range from 0 to 100, with lower scores indicating a better quality of life) were lower among patients who underwent laser ablation or surgery than among those who underwent foam sclerotherapy (effect size [adjusted differences between groups] for laser ablation vs. foam sclerotherapy, -2.86; 95% confidence interval [CI], -4.49 to -1.22; P<0.001; and for surgery vs. foam sclerotherapy, -2.60; 95% CI, -3.99 to -1.22; P<0.001). Generic quality-of-life measures did not differ among treatment groups. At a threshold willingness-to-pay ratio of £20,000 ($28,433 in U.S. dollars) per QALY, 77.2% of the cost-effectiveness model iterations favored laser ablation. In a two-way comparison between foam sclerotherapy and surgery, 54.5% of the model iterations favored surgery. CONCLUSIONS: In a randomized trial of treatments for varicose veins, disease-specific quality of life 5 years after treatment was better after laser ablation or surgery than after foam sclerotherapy. The majority of the probabilistic cost-effectiveness model iterations favored laser ablation at a willingness-to-pay ratio of £20,000 ($28,433) per QALY. (Funded by the National Institute for Health Research; CLASS Current Controlled Trials number, ISRCTN51995477.).
Asunto(s)
Procedimientos Endovasculares , Terapia por Láser , Calidad de Vida , Escleroterapia , Várices/terapia , Adulto , Análisis Costo-Beneficio , Procedimientos Endovasculares/economía , Femenino , Estudios de Seguimiento , Humanos , Análisis de Intención de Tratar , Terapia por Láser/economía , Masculino , Persona de Mediana Edad , Años de Vida Ajustados por Calidad de Vida , Escleroterapia/economía , Escleroterapia/métodos , Encuestas y Cuestionarios , Resultado del Tratamiento , Ultrasonografía Intervencional , Várices/cirugíaRESUMEN
BACKGROUND: Ultrasound-guided foam sclerotherapy and endovenous laser ablation are widely used alternatives to surgery for the treatment of varicose veins, but their comparative effectiveness and safety remain uncertain. METHODS: In a randomized trial involving 798 participants with primary varicose veins at 11 centers in the United Kingdom, we compared the outcomes of foam, laser, and surgical treatments. Primary outcomes at 6 months were disease-specific quality of life and generic quality of life, as measured on several scales. Secondary outcomes included complications and measures of clinical success. RESULTS: After adjustment for baseline scores and other covariates, the mean disease-specific quality of life was slightly worse after treatment with foam than after surgery (P=0.006) but was similar in the laser and surgery groups. There were no significant differences between the surgery group and the foam or the laser group in measures of generic quality of life. The frequency of procedural complications was similar in the foam group (6%) and the surgery group (7%) but was lower in the laser group (1%) than in the surgery group (P<0.001); the frequency of serious adverse events (approximately 3%) was similar among the groups. Measures of clinical success were similar among the groups, but successful ablation of the main trunks of the saphenous vein was less common in the foam group than in the surgery group (P<0.001). CONCLUSIONS: Quality-of-life measures were generally similar among the study groups, with the exception of a slightly worse disease-specific quality of life in the foam group than in the surgery group. All treatments had similar clinical efficacy, but complications were less frequent after laser treatment and ablation rates were lower after foam treatment. (Funded by the Health Technology Assessment Programme of the National Institute for Health Research; Current Controlled Trials number, ISRCTN51995477.).
Asunto(s)
Terapia por Láser , Escleroterapia , Várices/terapia , Adulto , Femenino , Estudios de Seguimiento , Humanos , Análisis de Intención de Tratar , Terapia por Láser/efectos adversos , Masculino , Persona de Mediana Edad , Evaluación de Resultado en la Atención de Salud , Complicaciones Posoperatorias , Calidad de Vida , Vena Safena/cirugía , Escleroterapia/efectos adversos , Escleroterapia/métodos , Índice de Severidad de la Enfermedad , Ultrasonografía Intervencional , Várices/clasificación , Várices/cirugíaRESUMEN
BACKGROUND: Women with a pre-existing severe mental disorder have an increased risk of relapse after giving birth. We aimed to evaluate associations of the gradual regional implementation of community perinatal mental health teams in England from April, 2016, with access to mental health care and with mental health, obstetric, and neonatal outcomes. METHODS: For this cohort study, we used the national dataset of secondary mental health care provided by National Health Service England, including mental health-care episodes from April 1, 2006, to March 31, 2019, linked at patient level to the Hospital Episode Statistics, and birth notifications from the Personal Demographic Service. We included women (aged ≥18 years) with an onset of pregnancy from April 1, 2016, who had given birth to a singleton baby up to March 31, 2018, and who had a pre-existing mental disorder, defined as contacts with secondary mental health care in the 10 years immediately before pregnancy. The primary outcome was acute relapse, defined as psychiatric hospital admission or crisis resolution team contact in the postnatal period (first year after birth). Secondary outcomes included any secondary mental health care in the perinatal period (pregnancy and postnatal period) and obstetric and neonatal outcomes. Outcomes were compared according to whether a community perinatal mental health team was available before pregnancy, with odds ratios (ORs) adjusted for time trends and maternal characteristics (adjORs). FINDINGS: Of 807 798 maternity episodes in England, we identified 780 026 eligible women with a singleton birth, of whom 70 323 (9·0%) had a pre-existing mental disorder. A postnatal acute relapse was found in 1117 (3·6%) of 31 276 women where a community perinatal mental health team was available and in 1745 (4·5%) of 39 047 women where one was unavailable (adjOR 0·77, 95% CI 0·64-0·92; p=0·0038). Perinatal access to any secondary mental health care was found in 9888 (31·6%) of 31 276 women where a community perinatal mental health team was available and 10 033 (25·7%) of 39 047 women where one was not (adjOR 1·35, 95% CI 1·23-1·49; p<0·0001). Risk of stillbirth and neonatal death was higher where a community perinatal mental health team was available (165 [0·5%] of 30 980 women) than where it was not (151 [0·4%] of 38 693 women; adjOR 1·34, 95% CI 1·09-1·66; p=0·0063), as was the risk of a baby small for gestational age (2227 [7·2%] of 31 030 women vs 2542 [6·6%] of 38 762 women; adjOR 1·10, 1·02-1·20; p=0·016), whereas preterm birth risk was lower (3167 [10·1%] of 31 206 women vs 4341 [11·1%] of 38 961; adjOR 0·86, 0·74-0·99; p=0·032). INTERPRETATION: The regional availability of community perinatal mental health teams reduced the postnatal risk of acute relapse and increased the overall use of secondary mental health care. Community perinatal mental health teams should have close links with maternity services to avoid intensive psychiatric support overshadowing obstetric and neonatal risks. FUNDING: The National Institute for Health and Care Research.
Asunto(s)
Mujeres Embarazadas , Nacimiento Prematuro , Embarazo , Femenino , Recién Nacido , Humanos , Adolescente , Adulto , Estudios de Cohortes , Salud Mental , Medicina Estatal , Parto , Inglaterra/epidemiología , RecurrenciaRESUMEN
BACKGROUND: Over 3000 young people under the age of 18 are admitted to Tier 4 Child and Adolescent Mental Health Services (CAMHS) inpatient units across the UK each year. The average length of hospital stay for young people across all psychiatric units in the UK is 120 days. Research is needed to identify the most effective and efficient ways to care for young people (YP) with psychiatric emergencies. This study aims to evaluate the clinical effectiveness and cost-effectiveness of intensive community care service (ICCS) compared to treatment as usual (TAU) for young people with psychiatric emergencies. METHODS: This is a multicentre two-arm randomized controlled trial (RCT) with an internal pilot phase. Young people aged 12 to < 18 considered for admission at participating NHS organizations across the UK will be randomized 1:1 to either TAU or ICCS. The primary outcome is the time to return to or start education, employment, or training (EET) at 6 months post-randomization. Secondary outcomes will include evaluations of mental health and overall well-being and patient satisfaction. Service use and costs and cost-effectiveness will also be explored. Intention-to-treat analysis will be adopted. The trial is expected to be completed within 42 months, with an internal pilot phase in the first 12 months to assess the recruitment feasibility. A process evaluation using visual semi-structured interviews will be conducted with 42 young people and 42 healthcare workers. DISCUSSION: This trial is the first well-powered randomized controlled trial evaluating the clinical and cost-effectiveness of ICCS compared to TAU for young people with psychiatric emergencies in Great Britain. TRIAL REGISTRATION: ISRCTN ISRCTN42999542, Registration on April 29, 2020.
Asunto(s)
Urgencias Médicas , Salud Mental , Niño , Adolescente , Humanos , Resultado del Tratamiento , Satisfacción del Paciente , Reino Unido , Análisis Costo-Beneficio , Ensayos Clínicos Controlados Aleatorios como Asunto , Estudios Multicéntricos como AsuntoRESUMEN
BACKGROUND: Pregnant women with pre-existing mental illnesses have increased risks of adverse obstetric and neonatal outcomes compared with pregnant women without pre-existing mental illnesses. We aimed to estimate these differences in risks according to the highest level of pre-pregnancy specialist mental health care, defined as psychiatric hospital admission, crisis resolution team (CRT) contact, or specialist community care only, and the timing of the most recent care episode in the 7 years before pregnancy. METHODS: Hospital and birth registration records of women with singleton births between April 1, 2014, and March 31, 2018 in England were linked to records of babies and records from specialist mental health services provided by the England National Health Service, a publicly funded health-care system. We compared the risks of adverse pregnancy outcomes, including fetal and neonatal death, preterm birth, and babies being born small for gestational age (SGA; birthweight <10th percentile), and composite indicators for neonatal adverse outcomes and maternal morbidity, between women with and without a history of contact with specialist mental health care. We calculated odds ratios adjusted for maternal characteristics (aORs), using logistic regression. FINDINGS: Of 2 081 043 included women (mean age 30·0 years; range 18-55 years; 77·7% White, 11·4% South Asian, 4·7% Black, and 6·2% mixed or other ethnic background), 151 770 (7·3%) had at least one pre-pregnancy specialist mental health-care contact. 7247 (0·3%) had been admitted to a psychiatric hospital, 29 770 (1·4%) had CRT contact, and 114 753 (5·5%) had community care only. With a pre-pregnancy mental health-care contact, risk of stillbirth or neonatal death within 7 days of birth was not significantly increased (0·45-0·49%; aOR 1·11, 95% CI 0·99-1·24): risk of preterm birth (<37 weeks) increased (6·5-9·8%; aOR 1·53, 1·35-1·73), as did risk of SGA (6·2- 7·5%; aOR 1·34, 1·30-1·37) and neonatal adverse outcomes (6·4-8·4%; aOR 1·37, 1·21-1·55). With a pre-pregnancy mental health-care contact, risk of maternal morbidity increased slightly from 0·9% to 1·0% (aOR 1·18, 1·12-1·25). Overall, risks were highest for women who had a psychiatric hospital admission any time or a mental health-care contact in the year before pregnancy. INTERPRETATION: Information about the level and timing of pre-pregnancy specialist mental health-care contacts helps to identify women at increased risk of adverse obstetric and neonatal outcomes. These women are most likely to benefit from dedicated community perinatal mental health teams working closely with maternity services to provide integrated care. FUNDING: National Institute for Health Research.
Asunto(s)
Muerte Perinatal , Nacimiento Prematuro , Lactante , Embarazo , Femenino , Recién Nacido , Humanos , Adulto , Nacimiento Prematuro/epidemiología , Mujeres Embarazadas , Estudios de Cohortes , Datos de Salud Recolectados Rutinariamente , Salud Mental , Medicina Estatal , Resultado del Embarazo/epidemiologíaRESUMEN
BACKGROUND: Atrial fibrillation (AF) is a major preventable risk factor for stroke and may be silent in elderly individuals who are at especially high risk. This paper describes the first phase of implementation of a clinical AF detection programme in a community setting. Objectives were (i) to determine the feasibility of using a handheld ECG recording system for AF detection among individuals aged 65â¯years or more, who have cardiovascular risk factors. (ii) to estimate the yield of previously undiagnosed atrial fibrillation cases, and the proportion of these who would be suitable for oral anticoagulation. METHODS: a handheld ECG monitor was placed in each of 23 primary care practices across Scotland. Eligible patients attending for annual health checks had ECGs recorded, and the ECGs were transmitted and interpreted by two senior cardiologists. ECG quality was rated, and an adjudication made on the rhythm. For patients confirmed with AF, stroke and bleeding risk were estimated using CHA2DS2-VASc and HAS-BLED scoring tools. RESULTS: single lead ECGs were recorded in 1805 patients (703 female and 1102 male), mean (SD) age 74.9 (7.1) years. Rhythm regularity could be assessed in 98.7% of ECGs recorded. 92 patients (5.1%) were found to have AF. Median [range]CHA2DS2-VASc score was 4 ([2-7) and median [range] HAS-BLED score was 2 (1-5). CONCLUSION: handheld ECG recording can be used to identify AF in the primary care setting, with minimal training. The yield was relatively high.
Asunto(s)
Fibrilación Atrial/diagnóstico , Electrocardiografía/métodos , Frecuencia Cardíaca/fisiología , Salud Pública , Medición de Riesgo/métodos , Accidente Cerebrovascular/prevención & control , Telemedicina/métodos , Factores de Edad , Anciano , Fibrilación Atrial/complicaciones , Fibrilación Atrial/fisiopatología , Femenino , Estudios de Seguimiento , Humanos , Masculino , Prevalencia , Estudios Retrospectivos , Factores de Riesgo , Escocia/epidemiología , Accidente Cerebrovascular/epidemiología , Accidente Cerebrovascular/etiologíaRESUMEN
OBJECTIVES: To investigate the clinical and cost-effectiveness of self-monitoring of coagulation status in people receiving long-term vitamin K antagonist therapy compared with standard clinic care. DESIGN: Systematic review of current evidence and economic modelling. DATA SOURCES: Major electronic databases were searched up to May 2013. The economic model parameters were derived from the clinical effectiveness review, routine sources of cost data and advice from clinical experts. STUDY ELIGIBILITY CRITERIA: Randomised controlled trials (RCTs) comparing self-monitoring versus standard clinical care in people with different clinical conditions. Self-monitoring included both self-management (patients conducted the tests and adjusted their treatment according to an algorithm) and self-testing (patients conducted the tests, but received treatment recommendations from a clinician). Various point-of-care coagulometers were considered. RESULTS: 26 RCTs (8763 participants) were included. Both self-management and self-testing were as safe as standard care in terms of major bleeding events (RR 1.08, 95% CI 0.81 to 1.45, p=0.690, and RR 0.99, 95% CI 0.80 to 1.23, p=0.92, respectively). Self-management was associated with fewer thromboembolic events (RR 0.51, 95% CI 0.37 to 0.69, p ≤ 0.001) and with a borderline significant reduction in all-cause mortality (RR 0.68, 95% CI 0.46 to 1.01, p=0.06) than standard care. Self-testing resulted in a modest increase in time in therapeutic range compared with standard care (weighted mean difference, WMD 4.4%, 95% CI 1.71 to 7.18, p=0.02). Total health and social care costs over 10 years were £7324 with standard care and £7326 with self-monitoring (estimated quality adjusted life year, QALY gain was 0.028). Self-monitoring was found to have â¼ 80% probability of being cost-effective compared with standard care applying a ceiling willingness-to-pay threshold of £20,000 per QALY gained. Within the base case model, applying the pooled relative effect of thromboembolic events, self-management alone was highly cost-effective while self-testing was not. CONCLUSIONS: Self-monitoring appears to be a safe and cost-effective option. TRIAL REGISTRATION NUMBER: PROSPERO CRD42013004944.
Asunto(s)
Anticoagulantes/uso terapéutico , Análisis Costo-Beneficio , Autocuidado/economía , Vitamina K/antagonistas & inhibidores , Anticoagulantes/efectos adversos , Hemorragia/inducido químicamente , Humanos , Tromboembolia/inducido químicamenteRESUMEN
BACKGROUND: Self-monitoring (self-testing and self-management) could be a valid option for oral anticoagulation therapy monitoring in the NHS, but current evidence on its clinical effectiveness or cost-effectiveness is limited. OBJECTIVES: We investigated the clinical effectiveness and cost-effectiveness of point-of-care coagulometers for the self-monitoring of coagulation status in people receiving long-term vitamin K antagonist therapy, compared with standard clinic monitoring. DATA SOURCES: We searched major electronic databases (e.g. MEDLINE, MEDLINE In Process & Other Non-Indexed Citations, EMBASE, Bioscience Information Service, Science Citation Index and Cochrane Central Register of Controlled Trials) from 2007 to May 2013. Reports published before 2007 were identified from the existing Cochrane review (major databases searched from inception to 2007). The economic model parameters were derived from the clinical effectiveness review, other relevant reviews, routine sources of cost data and clinical experts' advice. REVIEW METHODS: We assessed randomised controlled trials (RCTs) evaluating self-monitoring in people with atrial fibrillation or heart valve disease requiring long-term anticoagulation therapy. CoaguChek(®) XS and S models (Roche Diagnostics, Basel, Switzerland), INRatio2(®) PT/INR monitor (Alere Inc., San Diego, CA USA), and ProTime Microcoagulation system(®) (International Technidyne Corporation, Nexus Dx, Edison, NJ, USA) coagulometers were compared with standard monitoring. Where possible, we combined data from included trials using standard inverse variance methods. Risk of bias assessment was performed using the Cochrane risk of bias tool. A de novo economic model was developed to assess the cost-effectiveness over a 10-year period. RESULTS: We identified 26 RCTs (published in 45 papers) with a total of 8763 participants. CoaguChek was used in 85% of the trials. Primary analyses were based on data from 21 out of 26 trials. Only four trials were at low risk of bias. Major clinical events: self-monitoring was significantly better than standard monitoring in preventing thromboembolic events [relative risk (RR) 0.58, 95% confidence interval (CI) 0.40 to 0.84; p = 0.004]. In people with artificial heart valves (AHVs), self-monitoring almost halved the risk of thromboembolic events (RR 0.56, 95% CI 0.38 to 0.82; p = 0.003) and all-cause mortality (RR 0.54, 95% CI 0.32 to 0.92; p = 0.02). There was greater reduction in thromboembolic events and all-cause mortality through self-management but not through self-testing. Intermediate outcomes: self-testing, but not self-management, showed a modest but significantly higher percentage of time in therapeutic range, compared with standard care (weighted mean difference 4.44, 95% CI 1.71 to 7.18; p = 0.02). Patient-reported outcomes: improvements in patients' quality of life related to self-monitoring were observed in six out of nine trials. High preference rates were reported for self-monitoring (77% to 98% in four trials). Net health and social care costs over 10 years were £7295 (self-monitoring with INRatio2); £7324 (standard care monitoring); £7333 (self-monitoring with CoaguChek XS) and £8609 (self-monitoring with ProTime). The estimated quality-adjusted life-year (QALY) gain associated with self-monitoring was 0.03. Self-monitoring with INRatio2 or CoaguChek XS was found to have ≈ 80% chance of being cost-effective, compared with standard monitoring at a willingness-to-pay threshold of £20,000 per QALY gained. CONCLUSIONS: Compared with standard monitoring, self-monitoring appears to be safe and effective, especially for people with AHVs. Self-monitoring, and in particular self-management, of anticoagulation status appeared cost-effective when pooled estimates of clinical effectiveness were applied. However, if self-monitoring does not result in significant reductions in thromboembolic events, it is unlikely to be cost-effective, based on a comparison of annual monitoring costs alone. Trials investigating the longer-term outcomes of self-management are needed, as well as direct comparisons of the various point-of-care coagulometers. STUDY REGISTRATION: This study is registered as PROSPERO CRD42013004944. FUNDING: The National Institute for Health Research Health Technology Assessment programme.
Asunto(s)
Anticoagulantes/administración & dosificación , Sistemas de Atención de Punto/economía , Tromboembolia/prevención & control , Vitamina K/antagonistas & inhibidores , Anticoagulantes/efectos adversos , Análisis Costo-Beneficio , Hemorragia/inducido químicamente , Hemorragia/economía , Humanos , Relación Normalizada Internacional , Modelos Econométricos , Calidad de Vida , Ensayos Clínicos Controlados Aleatorios como Asunto , Reproducibilidad de los Resultados , Autocuidado , Medicina Estatal , Tromboembolia/economía , Reino UnidoRESUMEN
BACKGROUND: Dupuytren's disease is a slowly progressive condition of the hand, characterised by the formation of nodules in the palm that gradually develop into fibrotic cords. Contracture of the cords produces deformities of the fingers. Surgery is recommended for moderate and severe contractures, but complications and/or recurrences are frequent. Collagenase clostridium histolyticum (CCH) has been developed as a minimally invasive alternative to surgery for some patients. OBJECTIVES: To assess the clinical effectiveness and cost-effectiveness of collagenase as an alternative to surgery for adults with Dupuytren's contracture with a palpable cord. DATA SOURCES: We searched all major electronic databases from 1990 to February 2014. REVIEW METHODS: Randomised controlled trials (RCTs), non-randomised comparative studies and observational studies involving collagenase and/or surgical interventions were considered. Two reviewers independently extracted data and assessed risk of bias of included studies. A de novo Markov model was developed to assess cost-effectiveness of collagenase, percutaneous needle fasciotomy (PNF) and limited fasciectomy (LF). Results were reported as incremental cost per quality-adjusted life-year (QALY) gained. Deterministic and probabilistic sensitivity analyses were undertaken to investigate model and parameter uncertainty. RESULTS: Five RCTs comparing collagenase with placebo (493 participants), three RCTs comparing surgical techniques (334 participants), two non-randomised studies comparing collagenase and surgery (105 participants), five non-randomised comparative studies assessing various surgical procedures (3571 participants) and 15 collagenase case series (3154 participants) were included. Meta-analyses of RCTs assessing CCH versus placebo were performed. Joints randomised to collagenase were more likely to achieve clinical success. Collagenase-treated participants experienced significant reduction in contracture and an increased range of motion compared with placebo-treated participants. Participants treated with collagenase also experienced significantly more adverse events, most of which were mild or moderate. Four serious adverse events were observed in the collagenase group: two tendon ruptures, one pulley rupture and one complex regional pain syndrome. Two tendon ruptures were also reported in two collagenase case series. Non-randomised studies comparing collagenase with surgery produced variable results and were at high risk of bias. Serious adverse events across surgery studies were low. Recurrence rates ranged from 0% (at 90 days) to 100% (at 8 years) for collagenase and from 0% (at 2.7 years for fasciectomy) to 85% (at 5 years for PNF) for surgery. The results of the de novo economic analysis show that PNF was the cheapest treatment option, whereas LF generated the greatest QALY gains. Collagenase was more costly and generated fewer QALYs compared with LF. LF was £1199 more costly and generated an additional 0.11 QALYs in comparison with PNF. The incremental cost-effectiveness ratio was £10,871 per QALY gained. Two subgroup analyses were conducted for a population of patients with moderate and severe disease and up to two joints affected. In both subgroup analyses, collagenase remained dominated. LIMITATIONS: The main limitation of the review was the lack of head-to-head RCTs comparing collagenase with surgery and the limited evidence base for estimating the effects of specific surgical procedures (fasciectomy and PNF). Substantial differences across studies further limited the comparability of available evidence. The economic model was derived from a naive indirect comparison and was hindered by a lack of suitable data. In addition, there was considerable uncertainty about the appropriateness of many assumptions and parameters used in the model. CONCLUSIONS: Collagenase was significantly better than placebo. There was no evidence that collagenase was clinically better or worse than surgical treatments. LF was the most cost-effective choice to treat moderate to severe contractures, whereas collagenase was not. However, the results of the cost-utility analysis are based on a naive indirect comparison of clinical effectiveness, and a RCT is required to confirm or refute these findings. STUDY REGISTRATION: This study is registered as PROSPERO CRD42013006248. FUNDING: The National Institute for Health Research Health Technology Assessment programme.
Asunto(s)
Contractura de Dupuytren/cirugía , Contractura de Dupuytren/terapia , Colagenasa Microbiana/uso terapéutico , Adulto , Análisis Costo-Beneficio , Humanos , Colagenasa Microbiana/efectos adversos , Colagenasa Microbiana/economía , Complicaciones Posoperatorias , Años de Vida Ajustados por Calidad de VidaRESUMEN
BACKGROUND: Foam sclerotherapy (foam) and endovenous laser ablation (EVLA) have emerged as alternative treatments to surgery for patients with varicose veins, but uncertainty exists regarding their effectiveness in the medium to longer term. OBJECTIVES: To assess the clinical effectiveness and cost-effectiveness of foam, EVLA and surgery for the treatment of varicose veins. DESIGN: A parallel-group randomised controlled trial (RCT) without blinding, and economic modelling evaluation. SETTING: Eleven UK specialist vascular centres. PARTICIPANTS: Seven hundred and ninety-eight patients with primary varicose veins (foam, n = 292; surgery, n = 294; EVLA, n = 212). INTERVENTIONS: Patients were randomised between all three treatment options (eight centres) or between foam and surgery (three centres). PRIMARY OUTCOME MEASURES: Disease-specific [Aberdeen Varicose Vein Questionnaire (AVVQ)] and generic [European Quality of Life-5 Dimensions (EQ-5D), Short Form questionnaire-36 items (SF-36) physical and mental component scores] quality of life (QoL) at 6 months. Cost-effectiveness as cost per quality-adjusted life-year (QALY) gained. SECONDARY OUTCOME MEASURES: Quality of life at 6 weeks; residual varicose veins; Venous Clinical Severity Score (VCSS); complication rates; return to normal activity; truncal vein ablation rates; and costs. RESULTS: The results appear generalisable in that participants' baseline characteristics (apart from a lower-than-expected proportion of females) and post-treatment improvement in outcomes were comparable with those in other RCTs. The health gain achieved in the AVVQ with foam was significantly lower than with surgery at 6 months [effect size -1.74, 95% confidence interval (CI) -2.97 to -0.50; p = 0.006], but was similar to that achieved with EVLA. The health gain in SF-36 mental component score for foam was worse than that for EVLA (effect size 1.54, 95% CI 0.01 to 3.06; p = 0.048) but similar to that for surgery. There were no differences in EQ-5D or SF-36 component scores in the surgery versus foam or surgery versus EVLA comparisons at 6 months. The trial-based cost-effectiveness analysis showed that, at 6 months, foam had the highest probability of being considered cost-effective at a ceiling willingness-to-pay ratio of £20,000 per QALY. EVLA was found to cost £26,107 per QALY gained versus foam, and was less costly and generated slightly more QALYs than surgery. Markov modelling using trial costs and the limited recurrence data available suggested that, at 5 years, EVLA had the highest probability (≈ 79%) of being cost-effective at conventional thresholds, followed by foam (≈ 17%) and surgery (≈ 5%). With regard to secondary outcomes, health gains at 6 weeks (p < 0.005) were greater for EVLA than for foam (EQ-5D, p = 0.004). There were fewer procedural complications in the EVLA group (1%) than after foam (7%) and surgery (8%) (p < 0.001). Participants returned to a wide range of behaviours more quickly following foam or EVLA than following surgery (p < 0.05). There were no differences in VCSS between the three treatments. Truncal ablation rates were higher for surgery (p < 0.001) and EVLA (p < 0.001) than for foam, and were similar for surgery and EVLA. CONCLUSIONS: Considerations of both the 6-month clinical outcomes and the estimated 5-year cost-effectiveness suggest that EVLA should be considered as the treatment of choice for suitable patients. FUTURE WORK: Five-year trial results are currently being evaluated to compare the cost-effectiveness of foam, surgery and EVLA, and to determine the recurrence rates following each treatment. This trial has highlighted the need for long-term outcome data from RCTs on QoL, recurrence rates and costs for foam sclerotherapy and other endovenous techniques compared against each other and against surgery. TRIAL REGISTRATION: Current Controlled Trials ISRCTN51995477. 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. 19, No. 27. See the NIHR Journals Library website for further project information.