Your browser doesn't support javascript.
loading
Mostrar: 20 | 50 | 100
Resultados 1 - 20 de 452
Filtrar
1.
Egypt Heart J ; 76(1): 127, 2024 Sep 14.
Artigo em Inglês | MEDLINE | ID: mdl-39276199

RESUMO

BACKGROUND: This systematic review aims to determine the impact of isolated diastolic hypertension (IDH) on cardiovascular outcomes. METHODS: We searched only English language articles on PubMed and SCOPUS until July 31, 2023 to investigate the association between IDH and cardiovascular outcomes. RESULTS: This meta-analysis of 19 studies evaluated the impact of different hypertension diagnostic guidelines (ACC/AHA: American Heart Association/American College of Cardiology; JNC7: Joint National Committee on Prevention, Detection, Evaluation, and Treatment of High Blood Pressure; NICE/ESC: National Institute for Health and Care Excellence/European Society of Cardiology) on hypertension-related outcomes. Studies had varying sample sizes (173 to 2,969,679 participants) and study designs. In cohort studies using JNC7 guidelines, IDH was linked to increased cardiovascular disease (CVD) risk (HR: 1.45, 95% CI 1.17, 1.74), CVD mortality (HR: 1.54, 95% CI 1.23, 1.84), and coronary heart disease (CHD) risk (HR: 1.65). In studies using ACC/AHA guidelines, associations with CVD risk and CVD mortality were weaker [HR: 1.16 (95% CI 1.06, 1.25) and 1.10 (95% CI 0.95, 1.25), respectively]. Subgroup analysis revealed differences in outcomes on the basis of age and sex. Cross-sectional studies did not show significant associations with JNC7 and ACC guidelines; NICE guidelines were not used in cross-sectional studies. CONCLUSION: IDH is associated with an increased risk of CVD. Higher diastolic blood pressure cutoffs were associated with higher cardiovascular risk. This association varied by study design and effect modification by sex and race influenced the association.

2.
Lancet Reg Health Eur ; 46: 101062, 2024 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-39308982

RESUMO

Background: The COVID-19 global pandemic placed unprecedented pressure on cancer services, requiring new interim Systemic Anti-Cancer Treatments (SACT) options to mitigate risks to patients and maintain cancer services. In this study we analyse interim COVID-19 SACT therapy options recommended in England, evaluating the evidence supporting inclusion and delineating how these have been integrated into routine cancer care. Methods: We performed a retrospective analysis of interim Systemic Anti-Cancer Treatments endorsed by NHS England during the COVID-19 pandemic. Interim therapy options were compared to baseline (replacement) therapies by comparing data from the key pivotal trial(s) in terms of clinical efficacy and potential benefits (e.g., reduced immunosuppression or improved adverse effect profile) within the context of the pandemic. Furthermore, we evaluated the evolution of these interim SACT options, exploring if these have been integrated into current treatment pathways or are no longer accessible at the pandemic end. Findings: 31 interim oncology treatment options, across 36 indications, for solid cancers were endorsed by NHS England between March 2020 and August 2021. Interim therapies focused on the metastatic setting (83%; 30/36), allowing greater utilisation of immune checkpoint inhibitors (45%; 14/31) and targeted therapies (26%; 8/31), in place of cytotoxic chemotherapy. Overall, 36% (13/36) of therapies could not have efficacy compared with baseline treatments due to a paucity of evidence. For those which could, 39% (9/23) had superior efficacy (e.g., overall survival), 26% (6/23) had equivocal efficacy and 35% (8/23) lower efficacy. 53% (19/36) of interim therapies had better or equivocal toxicity profiles (when assessable), and/or were associated with reduced immunosuppression. Almost half (47%; 17/36) of interim therapies did not have UK market authorisation, being classified as 'off label' use. Analysing access to interim options at the end of the pandemic (May 2023) identified 19 (53% 19/36) interim options were fully available, and a further four (11% 4/36) therapies were partially available. Interpretation: Interim SACT options, introduced in England, across a range of solid cancers supported delivery of cancer services during the pandemic. Most interim therapies did not demonstrate superior efficacy, but provided other important benefits (e.g., reduced immunosuppression) in the context of the pandemic. Funding: None.

3.
J Ment Health ; 33(4): 507-513, 2024 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-39282990

RESUMO

The period of time following discharge from an inpatient setting presents a unique window of opportunity for people with psychosis to engage in psychological treatment. In England, The National Institute for Health and Care Excellence (NICE) guidelines outline that every person with a schizophrenia diagnosis should be offered individual Cognitive Behavioural Therapy for psychosis (CBTp) and Family Intervention (FI). This study aimed to explore rates of offer and receipt of NICE recommended therapies for adults with a schizophrenia spectrum disorder diagnosis in the year following discharge from an inpatient unit. We then investigated possible predictors of therapy offer and receipt. We used a large electronic healthcare records database to perform a secondary data analysis. A generalised linear regression model was used to explore possible predictors. Overall, our results showed low rates of offer and receipt of recommended therapies (Any recommended therapy (CBT only, FI only or CBT + FI) received = 39(8%), offered = 70(15%)). Predictor variable results were identified and discussed. The low level of offer and receipt of recommended therapies is concerning given the recommendations in the NICE guidelines for people with psychosis. Our study highlighted the need for more consistent and reliable procedures for recording this information. Further investigation into the reasons for low levels of implementation overall is important to aid the development of recommendations for how this can be improved.


Assuntos
Terapia Cognitivo-Comportamental , Transtornos Psicóticos , Humanos , Transtornos Psicóticos/terapia , Masculino , Adulto , Feminino , Pessoa de Meia-Idade , Pacientes Internados/psicologia , Esquizofrenia/terapia , Hospitalização , Inglaterra , Adulto Jovem , Guias de Prática Clínica como Assunto , Fidelidade a Diretrizes/estatística & dados numéricos
4.
Surg Endosc ; 2024 Sep 16.
Artigo em Inglês | MEDLINE | ID: mdl-39285037

RESUMO

BACKGROUND: By 2030, projections indicate that nearly half of USS adults will be obese, with 29 states exceeding a 50% obesity rate. High Body Mass Index (BMI) presents particular challenges in treating diverticulitis, including worsened symptoms and increased risk of surgical complications. The Robotic Natural orifice Intracorporeal Anastomosis with Transrectal Extraction (NICE) procedure has been developed for colorectal surgeries to tackle these challenges. This study evaluates the efficacy of the Robotic NICE procedure in achieving comparable surgical outcomes in patients with both high and normal BMI. METHODS: This retrospective cohort study assessed the outcomes of robotic-assisted colectomy utilizing the NICE technique in patients with diverticulitis, dividing them into two groups based on BMI: high BMI (≥ 30 kg/m^2) and non-high BMI (< 30 kg/m^2). RESULTS: Among the 194 patients analyzed, the incidence of complicated diverticulitis was significantly higher in the high BMI group (60.5%) compared to the non-high BMI group (39%; p = 0.003).The high BMI group had higher ASA scores, indicating sicker patients. The high BMI group also had a significantly higher rate of unplanned operations within 30 days (7.9% vs. 1.7%, p = 0.034). However, no significant differences were observed in the length of hospital stay, time to first flatus, or ICU admission rates between the two groups. Binary logistic regression highlighted the length of stay as a significant predictor of postoperative complications (Odds Ratio: 1.9686, 95% CI: 1.372-2.825, p < 0.001). Other factors, including age, operative time, and gender, did not significantly predict complications. CONCLUSION: The findings suggest that the Robotic NICE procedure can mitigate some of the challenges typically associated with conventional minimally invasive surgery in which abdominal wall incision is made, providing consistent outcomes regardless of BMI. Further research is needed to explore long-term benefits, aiming to establish this approach as a standard for managing diverticulitis in our patient population.

5.
Eur J Health Econ ; 2024 Aug 30.
Artigo em Inglês | MEDLINE | ID: mdl-39212880

RESUMO

OBJECTIVES: The aim of this study is to analyse the trends in technology appraisals for non-small cell lung cancer (NSCLC) treatments performed by the National Institute for Health and Care Excellence (NICE) over the last ten years. METHODS: A systematic search was conducted for single technology appraisals of NSCLC drugs in the online NICE database from 2012 to 2022. Search terms used were 'non small cell lung cancer', and 'NSCLC'. Appraisals that were under development or terminated as well as multiple technology appraisals were considered out of scope. RESULTS: In the 30 included appraisals for targeted therapies and immunotherapies within NSCLC, a total of 53 different comparators were included by NICE for 41 assorted indications or subgroups. Partitioned survival models were most frequently used, often including three health states and time horizons of up to 30 years. Throughout the decade the use of indirect comparisons was high and became more established and complex over time. Of all appraisals, 90% positively recommended the treatment for use in the UK. CONCLUSION: Technology appraisals became more complex over time due to the emergence of targeted therapies and immunotherapies, leading to multiple different indications, subpopulations and comparators that needed to be included in appraisals. Partitioned Survival Analysis (PartSA) models became the cornerstone within NSCLC, with time horizons up to 30 years and over time methods for indirect treatment comparisons became more established. The majority of the appraisals resulted in a positive recommendation for reimbursement.

7.
Crit Rev Oncol Hematol ; 201: 104439, 2024 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-38977142

RESUMO

BACKGROUND: Use of the faecal immunochemical test (FIT) to triage patients with iron deficiency (ID) for colonoscopy due to suspected colorectal cancer (CRC) may improve distribution of colonoscopic resources. We reviewed the diagnostic performance of FIT for detecting advanced colorectal neoplasia, including CRC and advanced pre-cancerous neoplasia (APCN), in patients with ID, with or without anaemia. METHODS: We performed a systematic review of three databases for studies comprising of patients with ID, with or without anaemia, completing a quantitative FIT within six months prior to colonoscopy, where test performance was compared against the reference standard colonoscopy. Random effects meta-analyses determined the diagnostic performance of FIT for advanced colorectal neoplasia. RESULTS: Nine studies were included on a total of n=1761 patients with ID, reporting FIT positivity thresholds between 4-150 µg haemoglobin/g faeces. Only one study included a non-anaemic ID (NAID) cohort. FIT detected CRC and APCN in ID patients with 90.7 % and 49.3 % sensitivity, and 81.0 % and 82.4 % specificity, respectively. FIT was 88.0 % sensitive and 83.4 % specific for CRC in patients with ID anaemia at a FIT positivity threshold of 10 µg haemoglobin/g faeces. CONCLUSIONS: FIT shows high sensitivity for advanced colorectal neoplasia and may be used to triage those with ID anaemia where colonoscopic resources are limited, enabling those at higher risk of CRC to be prioritised for colonoscopy. There is a need for further research investigating the diagnostic performance of FIT in NAID patients.


Assuntos
Anemia Ferropriva , Colonoscopia , Neoplasias Colorretais , Sangue Oculto , Humanos , Anemia Ferropriva/diagnóstico , Anemia Ferropriva/etiologia , Neoplasias Colorretais/complicações , Neoplasias Colorretais/diagnóstico , Detecção Precoce de Câncer/métodos , Imunoquímica/métodos , Deficiências de Ferro , Triagem/métodos
8.
Heliyon ; 10(11): e32594, 2024 Jun 15.
Artigo em Inglês | MEDLINE | ID: mdl-38961986

RESUMO

Background: Despite the availability of effective antidepressant strategies, numerous people with depressive disorders remain untreated. The Covid-19 pandemic has affected healthcare services, especially the mental health sector. This study aims to explore the coverage of depression treatments in the general Spanish population and the impact of the Covid-19 pandemic. Methods: We used longitudinal data (2018 and 2022) from the general Spanish population: pre-pandemic n = 1512; mean age = 65.43 years ± 14.90; 56 % females; post-pandemic n = 909; mean age = 68.00 years ± 14.24; 54 % women. The International Classification of Disease 10th edition was used to diagnose lifetime depressive episodes and severity. We explored psychological and pharmacological treatment coverage via multiple logistic regressions adjusted for 4 covariates (sex assigned at birth, education level, age, Covid-19 pandemic) for participants with a diagnosis of depression. Results: Treatment coverage for depression in the pre-pandemic and post-pandemic samples was, respectively, 53.3 % and 51.9 %. We observed an association between severe depression and treatment coverage (OR = 2.77, 95%CI 1.05 to 7.75). We found no association between the COVID-19 pandemic and treatment coverage. Conclusions: The pharmacological treatment coverage was associated with severe types of depression. The prevalence rates of treatment coverage were similar in the pre- and post-COVID-19 pandemic attesting to the resilience of the mental health system in Spain.

9.
Artigo em Inglês | MEDLINE | ID: mdl-39031874

RESUMO

PURPOSE: According to previous biomechanical studies, the success of meniscus root repair depends on the suture-meniscus interface and optimisation of this procedure seems to be critical. A progressive, reliable and adjustable knot has numerous advantages in meniscal repair since the surgeon can adapt and meticulously tune the final strength of the fixation. We hypothesised that a single passage of one tape at two different points of the posterior meniscal root with a modified Nice knot configuration may allow similar or superior fixation for root repair compared to the cinch stitch suture technique. METHODS: Posterior root repair of medial and lateral meniscus was performed on 26 porcine knees. In group (A), two simple cinch stitches were applied, and in group (B), a modified Nice knot was used in a crossmatch configuration. For both groups, two passages through the meniscus with a 2-mm braided tape were used, and a single transosseous tibial tunnel technique was performed and tested in pull-out conditions. RESULTS: The modified Nice knot showed an improved biomechanical performance considering the maximum failure load for both the medial (600.7 ± 77.5 N) and lateral (686.1 ± 83.5 N) (p = 0.006) posterior root fixation when compared to a double cinch stitch (558.0 ± 123.9 N) and (629.0 ± 110.2 N) (p = 0.178) for medial and lateral fixation, respectively. The maximum stiffness was also higher for the modified Nice knot configuration for both medial (17.1 ± 1.5 vs. 13.3 ± 1.6 N/mm) and lateral meniscus (20.0 ± 2.6 vs. 13.8 ± 2.3 N/mm), being this difference statistically significative (p = 0.001). CONCLUSIONS: The modified Nice knot allowed better adaptation in the pull-out tests and presented higher fixation strength, stiffness and reproducibility, with lower standard deviation, being at the same time economically advantageous, since only one tape is needed. LEVEL OF EVIDENCE: Level III.

11.
Artigo em Inglês | MEDLINE | ID: mdl-38907860

RESUMO

PURPOSE: Recently, a new dynamic high-strength suture (DC) was introduced, also available in tape form (DT), featuring a salt-infused silicone core attracting water in a fluid environment to preserve tissue approximation. The aims of this study were to (1) assess the influence of securing throw number on knot security of two double-stranded knot configurations (Cow-hitch and Nice-knot) tied with either dynamic (DC and DT) or conventional (FW and ST) high-strength sutures and tapes, and (2) compare the ultimate force and knot slippage of the novel dynamic versus conventional sutures and tapes when used with their minimal number of needed securing throws. METHODS: Seven specimens of each FW, ST, DC and DT were considered for tying with Cow-hitch or Nice-knots. The base of these Cow-hitch and Nice-knots was secured with surgeons` knots using 1-3 alternating throws. Tensile tests were conducted under physiologic conditions to evaluate knot slippage, ultimate force at rupture, and minimum number of throws ensuring 100% knot security.  RESULTS:  For both Cow-hitch and Nice-knots, 100% security was achieved with 2 securing throws for DC, DT, ST, and with 3 securing throws for FW. With these minimum numbers of securing throws, ultimate force was significantly higher for Nice-knots versus Cow-hitch tied with DT (p = 0.001) and slippage was significantly less with Nice-knots versus Cow-hitch tied with DC (p = 0.019). CONCLUSIONS: The minimum number of securing throws required to achieve 100% security was 2 with DC, DT and ST for both Cow-hitch and Nice-knots configurations, in contrast to FW where 3 securing throws were needed. With these minimum numbers of securing throws, Nice-knots were associated with significantly higher ultimate forces when using DT and lower slippage with DC versus Cow-hitch knots.

12.
J Surg Case Rep ; 2024(6): rjae196, 2024 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-38832067

RESUMO

A displaced distal clavicle fracture often necessitates surgical intervention, with various open and closed reduction options. Open reduction is easier but raises blood supply concerns, while closed reduction can involve complex deforming forces with differing displacement vectors. Herein, we demonstrate how a Nice knot with its sliding and self-locking qualities can be used to make closed reduction easier and the alignment more secure. A case report illustrates this Nice knot application in a 61-year-old male with a distal clavicle fracture. The Nice knot's ability to be loosened and retightened ensured more precise alignment in this case. The Nice knot technique is a versatile option for easier and more secure distal clavicle fracture management.

13.
Stud Health Technol Inform ; 314: 65-69, 2024 May 23.
Artigo em Inglês | MEDLINE | ID: mdl-38785005

RESUMO

Clinical guidelines for the assessment and management of atrial fibrillation emphasize the importance of taking the patient's preferences into account. A detailed examination of those from the National Institute for Excellence in Health and Social Care (NICE) raise serious questions about whether the recommendations embed preferences about crucial trade-offs that pre-empt those of the patient; do not stress the need to provide them with the information on option consequences necessary for them to become an informed patient; and characterise them as 'concordant' or 'discordant' rather than independently valid. American and European guidelines do not differ significantly in these respects.


Assuntos
Anticoagulantes , Fibrilação Atrial , Preferência do Paciente , Humanos , Anticoagulantes/uso terapêutico , Fibrilação Atrial/tratamento farmacológico , Guias de Prática Clínica como Assunto , Participação do Paciente
14.
Int J Colorectal Dis ; 39(1): 77, 2024 May 24.
Artigo em Inglês | MEDLINE | ID: mdl-38782770

RESUMO

PURPOSE: The diagnostic accuracy of Narrow Band Imaging (NBI) in the endoscopic surveillance of ulcerative colitis (UC) has been disappointing in most trials which used the Kudo classification. We aim to compare the performance of NBI in the lesion characterization of UC, when applied according to three different classifications (NICE, Kudo, Kudo-IBD). METHODS: In a prospective, real-life study, all visible lesions found during consecutive surveillance colonoscopies with NBI (Exera-II CV-180) for UC were classified as suspected or non-suspected for neoplasia according to the NICE, Kudo and Kudo-IBD criteria. The sensitivity (SE), specificity (SP), positive (+LR) and negative (-LR) likelihood ratios of the three classifications were calculated, using histology as the reference standard. RESULTS: 394 lesions (mean size 6 mm, range 2-40 mm) from 84 patients were analysed. Twenty-one neoplastic (5%), 49 hyperplastic (12%), and 324 inflammatory (82%) lesions were found. The diagnostic accuracy of the NICE, Kudo and Kudo-IBD classifications were, respectively: SE 76%-71%-86%; SP 55-69%-79% (p < 0.05 Kudo-IBD vs. both Kudo and NICE); +LR 1.69-2.34-4.15 (p < 0.05 Kudo-IBD vs. both Kudo and NICE); -LR 0.43-0.41-0.18. CONCLUSION: The diagnostic accuracy of NBI in the differentiation of neoplastic and non-neoplastic lesions in UC is low if used with conventional classifications of the general population, but it is significantly better with the modified Kudo classification specific for UC.


Assuntos
Colite Ulcerativa , Colonoscopia , Imagem de Banda Estreita , Humanos , Colite Ulcerativa/diagnóstico por imagem , Colite Ulcerativa/patologia , Colite Ulcerativa/diagnóstico , Colite Ulcerativa/classificação , Imagem de Banda Estreita/métodos , Estudos Prospectivos , Feminino , Masculino , Pessoa de Meia-Idade , Adulto , Colonoscopia/métodos , Idoso , Vigilância da População
15.
J Arthroplasty ; 2024 May 18.
Artigo em Inglês | MEDLINE | ID: mdl-38763481

RESUMO

BACKGROUND: The objectives of the study were to: (1) evaluate satisfaction with the new 2023 National Institute of Health and Care Excellence (NICE) criteria for selecting total hip arthroplasty (THA) over hemiarthroplasty and surgical recommendations for treatment of displaced intracapsular hip fractures; (2) describe why THA is performed when NICE criteria are not met; and (3) determine whether satisfaction with these guidelines is associated with improved outcomes. METHODS: A retrospective chart review of patients who had a displaced intracapsular hip fracture treated with THA at a single tertiary academic center between 2010 and 2022 was performed. Preoperative patient characteristics were reviewed to determine if the indication for THA met NICE criteria. Operative details, perioperative complications, reoperation, and revision arthroplasty within 12 months of surgery were recorded. RESULTS: Data from 196 patients (63% women; age 67 ± 10 years) were used. There were 161 THAs (82.1%) that satisfied NICE criteria. The 2 most common reasons for performing a THA when NICE criteria were not met (n = 35) included preoperative radiographic osteoarthritis (Tönnis grade ≥ 2; 48.6%) and decreased patient age (< 65 years; 31.5%). Satisfaction with the NICE criteria was associated with fewer perioperative complications (0.6 versus 37.1%; P < .001), reoperations (0.6 versus 31.4%; P < .001), and revisions (0.6 versus 28.6%; P < .001). The most common reason for revision was periprosthetic fracture, possibly secondary to the use of uncemented femoral stems (171 of 196, 87.2%). CONCLUSIONS: Satisfaction with the new NICE criteria is associated with improved perioperative outcomes. Further studies are necessary to determine if preexisting hip osteoarthritis and younger age merit consideration in patient selection.

16.
BMC Pregnancy Childbirth ; 24(1): 271, 2024 Apr 12.
Artigo em Inglês | MEDLINE | ID: mdl-38609891

RESUMO

BACKGROUND: Mild hyperglycaemia is associated with increased birth weight but association with other neonatal outcomes is controversial. We aimed to study neonatal outcomes in untreated mild hyperglycaemia using different oral glucose tolerance test (OGTT) thresholds. METHODS: This register-based study included all (n = 4,939) singleton pregnant women participating a 75 g 2-h OGTT in six delivery hospitals in Finland in 2009. Finnish diagnostic cut-offs for GDM were fasting ≥ 5.3, 1 h ≥ 10.0 or 2-h glucose ≥ 8.6 mmol/L. Women who did not meet these criteria but met the International Association of the Diabetes and Pregnancy Study Groups (IADPSG) criteria (fasting 5.1-5.2 mmol/L and/or 2-h glucose 8.5 mmol/L, n = 509) or the National Institute for Health and Clinical Excellence (NICE) criteria (2-h glucose 7.8-8.5 mmol/L, n = 166) were considered as mild untreated hyperglycaemia. Women who met both the Finnish criteria and the IADPSG or the NICE criteria were considered as treated GDM groups (n = 1292 and n = 612, respectively). Controls were normoglycaemic according to all criteria (fasting glucose < 5.1 mmol/L, 1-h glucose < 10.0 mmol/L and 2-h glucose < 8.5 mmol/L, n = 3031). Untreated mild hyperglycemia groups were compared to controls and treated GDM groups. The primary outcome - a composite of adverse neonatal outcomes, including neonatal hypoglycaemia, hyperbilirubinaemia, birth trauma or perinatal mortality - was analysed using multivariate logistic regression. RESULTS: The risk for the adverse neonatal outcome in untreated mild hyperglycemia was not increased compared to controls (adjusted odds ratio [aOR]: 1.01, 95% confidence interval [CI]: 0.71-1.44, using the IADPSG criteria; aOR: 1.05, 95% CI: 0.60-1.85, using the NICE criteria). The risk was lower compared to the treated IADPSG (aOR 0.38, 95% CI 0.27-0.53) or the treated NICE group (aOR 0.32, 95% CI 0.18-0.57). DISCUSSION: The risk of adverse neonatal outcomes was not increased in mild untreated hyperglycaemia compared to normoglycaemic controls and was lower than in the treated GDM groups. The OGTT cut-offs of 5.3 mmol/L at fasting and 8.6 mmol/L at 2 h seem to sufficiently identify clinically relevant GDM, without excluding neonates with a risk of adverse outcomes.


Assuntos
Diabetes Gestacional , Hiperglicemia , Gravidez em Diabéticas , Gravidez , Recém-Nascido , Feminino , Humanos , Glucose , Diabetes Gestacional/diagnóstico , Diabetes Gestacional/epidemiologia , Hiperglicemia/epidemiologia , Jejum
17.
J Imaging Inform Med ; 2024 Apr 23.
Artigo em Inglês | MEDLINE | ID: mdl-38653910

RESUMO

Labelling medical images is an arduous and costly task that necessitates clinical expertise and large numbers of qualified images. Insufficient samples can lead to underfitting during training and poor performance of supervised learning models. In this study, we aim to develop a SimCLR-based semi-supervised learning framework to classify colorectal neoplasia based on the NICE classification. First, the proposed framework was trained under self-supervised learning using a large unlabelled dataset; subsequently, it was fine-tuned on a limited labelled dataset based on the NICE classification. The model was evaluated on an independent dataset and compared with models based on supervised transfer learning and endoscopists using accuracy, Matthew's correlation coefficient (MCC), and Cohen's kappa. Finally, Grad-CAM and t-SNE were applied to visualize the models' interpretations. A ResNet-backboned SimCLR model (accuracy of 0.908, MCC of 0.862, and Cohen's kappa of 0.896) outperformed supervised transfer learning-based models (means: 0.803, 0.698, and 0.742) and junior endoscopists (0.816, 0.724, and 0.863), while performing only slightly worse than senior endoscopists (0.916, 0.875, and 0.944). Moreover, t-SNE showed a better clustering of ternary samples through self-supervised learning in SimCLR than through supervised transfer learning. Compared with traditional supervised learning, semi-supervised learning enables deep learning models to achieve improved performance with limited labelled endoscopic images.

18.
Value Health ; 27(6): 730-736, 2024 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-38447743

RESUMO

OBJECTIVES: This study aimed to evaluate the impact of the National Institute for Health and Care Excellence's (NICE) new severity modifier, which has replaced the end-of-life (EoL) premium, on future NICE recommendations, considering past decision-making patterns. METHODS: NICE technology appraisals (TAs) published between January 2020 and December 2022 were reviewed. Summary statistics were generated to assess how the new severity modifier might affect hypothetical decision making in historical TAs. RESULTS: A total of 138 data points were identified from 132 TAs. Although the EoL premium was applied in 46 appraisals (33%), 57 (39%) qualify for a severity-based quality-adjusted life-year (QALY) multiplier. Only 19 appraisals (14.6%) not receiving an EoL premium met the severity criteria, the majority (17) qualifying for a 1.2× multiplier. In appraisals predicted to meet the severity criteria, 45 (79%) were in oncology, making them 4.04 times (95% CI 1.91-9.02) more likely to qualify for a severity modifier than nononcology indications. Among historically EoL indications, 42 (91%) were predicted to meet the severity criteria, making them 14.8 times (95% CI 6.37-37.6) more likely to qualify for a severity modifier. CONCLUSIONS: The new severity modifier will predominantly benefit oncology indications, continuing their previous explicit prioritization under the EoL decision modifier. However, the new severity modifier is harder to achieve and less generous; only a fraction of appraisals qualify for the highest effective £51 000 per QALY threshold. The vast majority of indications previously approved at £50 000 per QALY would now need to meet a cost-effectiveness threshold of <£36 000. This may necessitate greater pricing flexibility from manufacturers and increase the likelihood of negative recommendations.


Assuntos
Análise Custo-Benefício , Tomada de Decisões , Anos de Vida Ajustados por Qualidade de Vida , Avaliação da Tecnologia Biomédica , Humanos , Reino Unido , Índice de Gravidade de Doença , Acessibilidade aos Serviços de Saúde/economia , Assistência Terminal/economia , Medicina Estatal
19.
Artigo em Inglês | MEDLINE | ID: mdl-38544812

RESUMO

Percutaneous left atrial appendage occlusion aims to reduce the risk of stroke in patients with AF, particularly those who are not good candidates for systemic anticoagulation. The procedure has been studied in large international randomised trials and registries and was approved by the National Institute for Health and Care Excellence in 2014 and by NHS England in 2018. This position statement summarises the evidence for left atrial appendage occlusion and presents the current indications. The options and consensus on best practice for pre-procedure planning, undertaking a safe and effective implant and appropriate post-procedure management and follow-up are described. Standards regarding procedure volume for implant centres and physicians, the role of multidisciplinary teams and audits are highlighted.

20.
Interv Cardiol ; 19: e02, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-38532943

RESUMO

Percutaneous left atrial appendage occlusion aims to reduce the risk of stroke in patients with AF, particularly those who are not good candidates for systemic anticoagulation. The procedure has been studied in large international randomised trials and registries and was approved by the National Institute for Health and Care Excellence in 2014 and by NHS England in 2018. This position statement summarises the evidence for left atrial appendage occlusion and presents the current indications. The options and consensus on best practice for pre-procedure planning, undertaking a safe and effective implant and appropriate post-procedure management and follow-up are described. Standards regarding procedure volume for implant centres and physicians, the role of multidisciplinary teams and audits are highlighted.

SELEÇÃO DE REFERÊNCIAS
DETALHE DA PESQUISA