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1.
Eur J Orthop Surg Traumatol ; 33(3): 581-585, 2023 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-36241914

RESUMEN

PURPOSE: In Sierra Leone there is a large void in orthopaedic research into the type of orthopaedic injuries, both acute and chronic. Improved data collection is essential in providing insight to guide health care planning and research. This study aims to outline the types of orthopaedic injury sustained. METHOD: Data were prospectively collected by local surgeons in the Orthopaedic outpatient department at a large hospital between January 2016 and January 2019. RESULTS: The orthopaedic department saw a mean 728 patients per year, with mean age 24.0 years. The workload comprised of 64.92% acute orthopaedic conditions or their complications, with 35.08% elective orthopaedics. Fractures made up the largest proportion of clinical appointments, annually 244.33 fractures; however there was a high incidence of osteomyelitis. CONCLUSION: The study gives an important insight into the types and distribution of elective and trauma orthopaedic injuries sustained in Sierra Leone, which has not been previously reported, and highlights key areas where resources may be focused in order to improve clinical outcomes.


Asunto(s)
Enfermedades Musculoesqueléticas , Ortopedia , Humanos , Adulto Joven , Adulto , Sierra Leona/epidemiología , Estudios Prospectivos , Hospitales
2.
N Engl J Med ; 381(10): 912-922, 2019 09 05.
Artículo en Inglés | MEDLINE | ID: mdl-31483962

RESUMEN

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/cirugía
3.
N Engl J Med ; 371(13): 1218-27, 2014 Sep 25.
Artículo en Inglés | MEDLINE | ID: mdl-25251616

RESUMEN

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/cirugía
5.
BMJ Surg Interv Health Technol ; 6(1): e000248, 2024.
Artículo en Inglés | MEDLINE | ID: mdl-38883696

RESUMEN

Objective: The Global IDEAL Sub-Framework Study aimed to combine the intended effects of the 2009/2019 IDEAL (Idea, Development, Exploration, Assessment, Long-term study) Framework recommendations on evaluating surgical innovation with the vision outlined by the 2015 Lancet Commission on Global Surgery to provide recommendations for evaluating surgical innovation in low-resource environments. Design: A mixture of methods including an online global survey and semistructured interviews (SSIs). Quantitative data were summarized with descriptive statistics and qualitative data were analyzed using the Framework Method. Participants: Surgeons and surgical researchers from any country. Main outcome measures: Findings were used to suggest the nature of adaptations to the IDEAL Framework to address the particular problems of evaluation in low-resource settings. Results: The online survey yielded 66 responses representing experience from 40 countries, and nine individual SSIs were conducted. Most respondents (n=49; 74.2%) had experience evaluating surgical technologies across a range of life cycle stages. Innovation was most frequently adopted based on colleague recommendation or clinical evaluation in other countries. Four themes emerged, centered around: frugal innovation in technological development; evaluating the same technology/innovation in different contexts; additional methodologies important in evaluation of surgical innovation in low/middle-income countries; and support for low-income country researchers along the evaluation pathway. Conclusions: The Global IDEAL Sub-Framework provides suggestions for modified IDEAL recommendations aimed at dealing with the special problems found in this setting. These will require validation in a stakeholder consensus forum, and qualitative assessment in pilot studies. From assisting researchers with identification of the correct evaluation stage, to providing context-specific recommendations relevant to the whole evaluation pathway, this process will aim to develop a comprehensive and applicable set of guidance that will benefit surgical innovation and patients globally.

7.
Prim Dent Care ; 19(3): 128-30, 2012 Jul.
Artículo en Inglés | MEDLINE | ID: mdl-23073161

RESUMEN

This paper presents the reflections of four colleagues who were instrumental in the foundation of the then Faculty of General Dental Practitioners (UK) in 1992. All four subsequently became members of the first Board of Faculty, of whom one became the second Dean of the Faculty and one became the first editor of Primary Dental Care. Two are members of the current Board. They were asked to reflect on six questions, which were: 1. What were the original hopes at the inception of the Faculty 20 years ago? 2. Have these hopes and expectations that you had 20 years ago been realised? 3. If the original aspirations have been met, what factors made this possible? 4. If some aspirations have not been realised, why? 5. What trends will shape dentistry in the next 20 years? 6. Where would you like to see the Faculty in 20 years' time?


Asunto(s)
Odontología/tendencias , Odontología General/organización & administración , Sociedades Odontológicas , Comités Consultivos , Humanos , Reino Unido
8.
Aorta (Stamford) ; 10(1): 20-25, 2022 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-35640583

RESUMEN

BACKGROUND: The "obesity paradox," whereby the body mass index (BMI) mortality curve is "U-shaped," is a well-studied phenomenon in vascular surgery. However, there has been an overreliance on BMI as the measure of obesity, which has shown to poorly correlate with clinical outcomes. Robust measures such as waist-hip ratio (WHR) have been suggested as a more accurate marker reflecting central obesity. OBJECTIVES: The objectives of this study were to evaluate the correlation between BMI and WHR on postoperative morbidity and mortality after elective abdominal aortic aneurysm (AAA) repair. METHODS: Data were collected from the Leeds Vascular Institute between January 2006 and December 2016. The primary outcome was mortality and secondary outcomes included length of stay (LOS) and all-cause readmission. Binary logistic regression, linear regression, and correlation analysis were used to identify associations between BMI and WHR in relation to outcome measures. RESULTS: After exclusions, 432 elective AAA repairs (281 open surgical repair [OSR] and 151 endovascular aneurysm repairs [EVARs]) were identified to be eligible for the study. The combined 30-day and 4-year mortality was 1.2 and 20.1%, respectively. The 30-day readmission rate was 3.9% and the average LOS was 7.33 (standard deviation 18.5) days. BMI data was recorded for 275 patients (63.7%) and WHR for 355 patients (82.2%). Logistic regression analysis highlighted no association between BMI and WHR with mortality, readmission, or LOS following OSR or EVAR. CONCLUSION: The results of this study suggest patients should not be denied treatment for AAA based on obesity alone.

9.
Disabil Rehabil ; 44(11): 2392-2399, 2022 06.
Artículo en Inglés | MEDLINE | ID: mdl-33261506

RESUMEN

PURPOSE: The primary aim was to explore the perceived barriers that lower limb amputees and service providers face when accessing or providing rehabilitation services. The secondary aim was to describe the lower limb amputations performed in public hospitals in the Western Area of Sierra Leone in 2018. MATERIALS AND METHODS: A mixed methodology was employed, involving the collection of amputation data from surgical logbooks and interviews with amputees (n = 10) and group discussion and interviews with service providers (n = 11). RESULTS: Of the 37 primary lower limb amputations (49% men, 51% women; median age 56 years; 62% transtibial and 35% transfemoral amputations) 86% were for diabetic and vascular causes. Barriers to accessing services included poor transportation access, high service fees, rural living, gender and a lack of government support. Insufficient funding and supplies, skilled staff shortages and a lack of local training programmes were frequently reported barriers to providing rehabilitation services. CONCLUSIONS: A low prioritisation means rehabilitation services are underfunded, resulting in numerous barriers to both accessing and providing amputee rehabilitation services. Subsidised services and an outreach programme may improve access for patients. Increased funding and local training programmes are needed to improve service delivery.Implications for RehabilitationComprehensive and accessible amputee rehabilitation services can enable people with amputations to regain their independence and aid their participation in their community and workplace.There are numerous barriers to both accessing and providing amputee rehabilitation services in the Western Area, Sierra Leone, chiefly financial. We recommend a revised effort by the Sierra Leonean government to implement the progressive policies on disability they have already adopted into law, which will aid the improvement of amputee rehabilitation services. New education and training programmes for all levels of prosthetic and orthotic professions are needed to secure the future of prosthetics and orthotics in Sierra Leone.


Asunto(s)
Amputados , Miembros Artificiales , Amputación Quirúrgica/rehabilitación , Amputados/rehabilitación , Femenino , Humanos , Extremidad Inferior/cirugía , Masculino , Persona de Mediana Edad , Sierra Leona
10.
JVS Vasc Sci ; 2: 95-109, 2021.
Artículo en Inglés | MEDLINE | ID: mdl-34617062

RESUMEN

OBJECTIVE: Previously published work has indicated that transcripts encoding transglutaminase 2 (TG2) increase markedly in a rat model of abdominal aortic aneurysm. This study determines whether TG2 and the related TG, factor XIII-A (FXIII-A), protect against aortic aneurysm development in mice. METHODS: C57BL/6J wild-type, Tgm2 -/- knockout, F13a1 -/- knockout, and Tgm2 -/- /F13a1 -/- double knockout mice were subjected to laparotomy and periaortic application of CaCl2. RESULTS: Tgm2 -/- mice showed slightly greater aortic dilatation at 6 weeks after treatment when compared with wild type. However, vessels from Tgm2 -/- mice, but not wild-type mice, continued to dilate up to 6 months after injury and by 24 weeks, a greater number of Tgm2 -/- mice had developed aneurysms (16/17 vs 10/19; P = .008). Laparotomy resulted in a high death rate in F13a1 -/- knockout mice, more frequently from cardiac complications than from hemorrhage, but among F13a1 -/- mice that survived for 6 weeks after CaCl2 treatment, abdominal aortic aneurysm diameter was unaltered relative to wild-type mice. Laparotomy resulted in a higher death rate among Tgm2 -/- /F13a1 -/- double knockout mice, owing to an increased frequency of delayed bleeding. Surprisingly, Tgm2 -/- /F13a1 -/- double knockout mice showed a trend toward decreased dilatation of the aorta 6 weeks after injury, and this finding was replicated in Tgm2 -/- /F13a1 -/- mice subjected to carotid artery injury. Levels of transcripts encoding TG2 were not increased in the aortas of injured wild-type or F13a1 -/- knockout mice relative to uninjured mice, although changes in the levels of other transcripts accorded with previous descriptions of the CaCl2 aneurysm model in mice. CONCLUSIONS: Knockout of Tgm2, but not F13a1 exacerbates aortic dilatation, suggesting that TG2 confers protection. However, levels of TG2 messenger RNA are not acutely elevated after injury. FXIII-A plays a role in preventing postoperative damage after laparotomy, confirming previous reports that it prevents distal organ damage after trauma. TG2 promotes wound healing after surgery and, in its absence, the bleeding diathesis associated with FXIII-A deficiency is further exposed.

11.
PLoS Negl Trop Dis ; 15(10): e0009862, 2021 10.
Artículo en Inglés | MEDLINE | ID: mdl-34644298

RESUMEN

BACKGROUND: Chronic wounds pose a significant healthcare burden in low- and middle-income countries. Buruli ulcer (BU), caused by Mycobacterium ulcerans infection, causes wounds with high morbidity and financial burden. Although highly endemic in West and Central Africa, the presence of BU in Sierra Leone is not well described. This study aimed to confirm or exclude BU in suspected cases of chronic wounds presenting to Masanga Hospital, Sierra Leone. METHODOLOGY: Demographics, baseline clinical data, and quality of life scores were collected from patients with wounds suspected to be BU. Wound tissue samples were acquired and transported to the Swiss Tropical and Public Health Institute, Switzerland, for analysis to detect Mycobacterium ulcerans using qPCR, microscopic smear examination, and histopathology, as per World Health Organization (WHO) recommendations. FINDINGS: Twenty-one participants with wounds suspected to be BU were enrolled over 4-weeks (Feb-March 2019). Participants were predominantly young working males (62% male, 38% female, mean 35yrs, 90% employed in an occupation or as a student) with large, single, ulcerating wounds (mean diameter 9.4cm, 86% single wound) exclusively of the lower limbs (60% foot, 40% lower leg) present for a mean 15 months. The majority reported frequent exposure to water outdoors (76%). Self-reports of over-the-counter antibiotic use prior to presentation was high (81%), as was history of trauma (38%) and surgical interventions prior to enrolment (48%). Regarding laboratory investigation, all samples were negative for BU by microscopy, histopathology, and qPCR. Histopathology analysis revealed heavy bacterial load in many of the samples. The study had excellent participant recruitment, however follow-up proved difficult. CONCLUSIONS: BU was not confirmed as a cause of chronic ulceration in our cohort of suspected cases, as judged by laboratory analysis according to WHO standards. This does not exclude the presence of BU in the region, and the definitive cause of these treatment-resistance chronic wounds is uncertain.


Asunto(s)
Úlcera de Buruli/microbiología , Mycobacterium ulcerans/aislamiento & purificación , Enfermedades Desatendidas/microbiología , Heridas y Lesiones/microbiología , Adolescente , Adulto , Anciano , Antibacterianos/uso terapéutico , Úlcera de Buruli/tratamiento farmacológico , Úlcera de Buruli/epidemiología , Enfermedad Crónica/epidemiología , Estudios de Cohortes , Femenino , Hospitales/estadística & datos numéricos , Humanos , Masculino , Persona de Mediana Edad , Mycobacterium ulcerans/efectos de los fármacos , Mycobacterium ulcerans/genética , Mycobacterium ulcerans/fisiología , Enfermedades Desatendidas/tratamiento farmacológico , Enfermedades Desatendidas/epidemiología , Sierra Leona/epidemiología , Heridas y Lesiones/epidemiología , Adulto Joven
12.
MedEdPublish (2016) ; 8: 53, 2019.
Artículo en Inglés | MEDLINE | ID: mdl-38089385

RESUMEN

This article was migrated. The article was marked as recommended. MAW and colleagues offer their advice on applying for academic clinical training posts including the do's and don'ts. The authors all have experience of the national Integrated Academic Training (IAT) pathway in the United Kingdom. Whilst all the following top tips are not mandatory to attain a clinical academic role, we believe they would put a potential applicant in a good position to succeed, regardless of whether they were applying for an academic foundation post, academic clinical fellowship or a clinical lectureship. We have tailored our advice so that it may be considered when constructing an application as well as helping applicants for the interview.

13.
Br J Hosp Med (Lond) ; 80(7): 387-390, 2019 Jul 02.
Artículo en Inglés | MEDLINE | ID: mdl-31283388

RESUMEN

The costs of litigation are large and increasing, to a level that places a drain on precious health-care resources and affects the way medicine is practised. This article examines whether a change to a no-fault legal system would lead to reduced costs and improved patient care.


Asunto(s)
Mala Praxis/economía , Mala Praxis/legislación & jurisprudencia , Errores Médicos/economía , Errores Médicos/legislación & jurisprudencia , Humanos , Responsabilidad Legal/economía , Procedimientos Ortopédicos/economía , Mejoramiento de la Calidad/organización & administración , Medicina Estatal/economía , Medicina Estatal/legislación & jurisprudencia , Reino Unido , Heridas y Lesiones/economía
14.
Int Angiol ; 38(6): 466-473, 2019 Dec.
Artículo en Inglés | MEDLINE | ID: mdl-31580041

RESUMEN

BACKGROUND: Chronic mesenteric ischemia (CMI) is a rare, but potentially fatal condition, which is becoming increasingly prevalent in elderly patients. This study investigated the impact of endovascular intervention on patient symptomology and the influence of extent of mesenteric disease on patient morbidity and mortality. METHODS: All patients who underwent primary angioplasty (±stenting) to the mesenteric vessels for CMI between July 2008 to July 2017 were retrospectively identified. Patient data relating to comorbidities, clinical presentation, disease burden, procedural details, symptomatology, reintervention and mortality were collected. Mortality was assessed using regression analysis, which was adjusted for age and gender. RESULTS: Overall, 38 patients were included in the study. The median age was 73.5 years (interquartile range, 70.0-77.8). Abdominal pain (N.=36), postprandial pain (N.=32) and weight loss (N.=32) were the most common symptoms reported at presentation. Technical success was achieved in 37 patients. Thirty-two patients were symptom free at 6 weeks and 29 patients were symptom free at 2 years. Overall 5 patients required reintervention. At 30 days and 2 years one and seven patients were deceased, respectively. Significant association was observed between three vessel intervention and overall mortality (adjusted odds ratio 14.5, 95% confidence interval: 1.28-165.86, P=0.031). Majority of patients died of a cause unrelated to their CMI. CONCLUSIONS: Endovascular intervention for CMI is safe and provides satisfactory short-term and intermediate term symptom resolution in majority of patients. This study supports the routine use of endovascular intervention in the management of this complex disease.


Asunto(s)
Angioplastia de Balón , Isquemia Mesentérica/terapia , Stents , Anciano , Enfermedad Crónica , Femenino , Humanos , Masculino , Isquemia Mesentérica/mortalidad , Isquemia Mesentérica/fisiopatología , Recurrencia , Estudios Retrospectivos , Análisis de Supervivencia , Factores de Tiempo , Resultado del Tratamiento , Reino Unido , Grado de Desobstrucción Vascular
15.
Br J Radiol ; 92(1097): 20180434, 2019 May.
Artículo en Inglés | MEDLINE | ID: mdl-30912955

RESUMEN

OBJECTIVE: We investigated whether total psoas muscle area (TPMA) was representative of the total psoas muscle volume (TPMV). Secondly, we assessed whether there was a relationship between the two commonly used single slice measurements of sarcopenia, TPMA and total abdominal muscle area (TAMA). METHODS: Pre-operative CT imaging of 110 patients undergoing elective endovascular aneurysm repair were analyzed by two trained independent observers. TPMA was measured at individual vertebral levels between the second lumbar vertebrae and sacrum. TPMV was also estimated between the second lumbar vertebrae and sacrum. TAMA was measured at the third lumbar vertebrae (L3). Observer differences were assessed using Bland-Altman plots. Associations between the different measures were assessed using linear regression and Pearson's correlation. RESULTS: We found single slice measurements of the TPMA to be representative of the TPMV at individual levels between L2 to the sacrum. The strongest association was seen at L3 [adjusted regression coefficient 16.7, 95% confidence interval (12.1 to 21.4), p < 0.001]. There was no association between TPMA and TAMA [adjusted regression coefficient -0.7, 95% confidence interval (-4.1 to 2.8), p = 0.710]. CONCLUSION: We demonstrate that measurements of the TPMA between L2 to the sacrum are representative of the TPMV, with the greatest association at the third lumbar vertebrae. There was no association between the TPMA and TAMA. ADVANCES IN KNOWLEDGE: We demonstrate that a single slice measurement of TPMA at L3 is representative of the muscle volume, contrary to previous criticism. Future sarcopenia studies can continue to measure TPMA which is representative of the TPMV.


Asunto(s)
Músculos Psoas/diagnóstico por imagen , Músculos Psoas/patología , Sarcopenia/diagnóstico por imagen , Sarcopenia/patología , Tomografía Computarizada por Rayos X/métodos , Anciano , Anciano de 80 o más Años , Femenino , Humanos , Masculino , Variaciones Dependientes del Observador , Tamaño de los Órganos , Intensificación de Imagen Radiográfica , Análisis de Regresión
16.
Br J Hosp Med (Lond) ; 79(4): 218-220, 2018 Apr 02.
Artículo en Inglés | MEDLINE | ID: mdl-29620983

RESUMEN

Discussion about and management of patients through multidisciplinary team meetings has become the standard of care in medical and surgical specialties, but does the team nature of these provide a legal shield for clinicians? This article discusses the legal implications of decision making within a multidisciplinary team.


Asunto(s)
Medicina Defensiva/métodos , Comunicación Interdisciplinaria , Grupo de Atención al Paciente , Toma de Decisiones , Humanos , Grupo de Atención al Paciente/legislación & jurisprudencia , Grupo de Atención al Paciente/organización & administración , Reino Unido
18.
Angiology ; 57(5): 607-14, 2006.
Artículo en Inglés | MEDLINE | ID: mdl-17067984

RESUMEN

A feature associated with abdominal aortic aneurysms (AAA) is the presence of intraluminal thrombi (ILT). Elevated plasma fibrinogen concentrations predict a greater risk of thrombosis. Therefore, the authors assessed the relationship between fibrinogen levels, AAA size, and ILT. An age- and sex-matched case-control study was conducted. Demographic data and plasma samples were obtained from 110 patients with AAA and 110 controls. All subjects had an abdominal ultrasound scan to determine the size of the aneurysm and the percentage of the ILT occupying the lumen. Plasma fibrinogen concentrations were measured by the Clauss method. Fibrinogen concentrations were significantly higher in patients with AAA than in controls (median: 2.89 vs 2.53 g/L; p<0.01). Patients with AAA who were current smokers had a larger median AAA size (4.50 vs 4.30 cm; p<0.04) and greater percentage of the ILT (40% vs 30%) than those who did not smoke. Fibrinogen was positively correlated with AAA size (r =0.323; p<0.01) and the percentage of ILT occupying the lumen (r =0.358; p<0.05). Fibrinogen levels were higher in the AAA group. The authors also demonstrated positive correlations between the AAA size, ILT, and fibrinogen concentration. Smoking was associated with larger aneurysms and ILT. Fibrinogen may be a useful marker to monitor the progression of AAA.


Asunto(s)
Aneurisma de la Aorta Abdominal/sangre , Fibrinógeno/análisis , Anciano , Anciano de 80 o más Años , Aorta Abdominal/diagnóstico por imagen , Aneurisma de la Aorta Abdominal/complicaciones , Aneurisma de la Aorta Abdominal/diagnóstico por imagen , Aneurisma de la Aorta Abdominal/fisiopatología , Presión Sanguínea , Estudios de Casos y Controles , Humanos , Masculino , Fumar , Trombosis/sangre , Trombosis/diagnóstico por imagen , Trombosis/etiología , Ultrasonografía
20.
Health Technol Assess ; 19(27): 1-342, 2015 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-25858333

RESUMEN

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.


Asunto(s)
Análisis Costo-Beneficio , Terapia por Láser , Evaluación de Procesos y Resultados en Atención de Salud/estadística & datos numéricos , Años de Vida Ajustados por Calidad de Vida , Escleroterapia , Várices/terapia , Actividades Cotidianas , Adolescente , Adulto , Anciano , Anciano de 80 o más Años , Femenino , Gastos en Salud/estadística & datos numéricos , Humanos , Terapia por Láser/efectos adversos , Terapia por Láser/economía , Terapia por Láser/métodos , Terapia por Láser/estadística & datos numéricos , Masculino , Persona de Mediana Edad , Evaluación de Procesos y Resultados en Atención de Salud/economía , Recurrencia , Escleroterapia/efectos adversos , Escleroterapia/economía , Escleroterapia/métodos , Escleroterapia/estadística & datos numéricos , Índice de Severidad de la Enfermedad , Medicina Estatal/economía , Evaluación de la Tecnología Biomédica , Reino Unido , Várices/economía , Várices/cirugía , Adulto Joven
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