Emanuel Vigia

Dr. Emanuel Vigia

CHBPT Curry Cabral, Centro Hospitalar Universitario Lisboa Central, Lisbon, Lisboa, Portugal
orcid

Research Focus & Metrics

Academic Career Length

23Years (2004-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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1 August 2019 in Annals of Surgery
Verified
Journal Article
Closed access
PSPatricia Sánchez-Velázquez
Patricia Sánchez-Velázquez
XMXavier Muller
Xavier Muller
GMGiuseppe Malleo
Giuseppe Malleo
JPJoon-Seong Park
Joon-Seong Park
HHHo-Kyoung Hwang
Ho-Kyoung Hwang
PCPierre-Alain Clavien
Pierre-Alain Clavien
Objective: To use the concept of benchmarking to establish robust and standardized outcome references after pancreatico-duodenectomy (PD). Background: Best achievable results after PD are unknown. Consequently, outcome comparisons among different cohorts, centers or with novel surgical techniques remain speculative. Methods: This multicenter study analyzes consecutive patients (2012–2015) undergoing PD in 23 international expert centers in pancreas surgery. Outcomes in patients without significant comorbidities and major vascular resection (benchmark cases) were analyzed to establish 20 outcome benchmarks for PD. These benchmarks were tested in a cohort with a poorer preoperative physical status (ASA class ≥3) and a cohort treated by minimally invasive approaches. Results: Two thousand three hundred seventy-five (38%) low-risk cases out of a total of 6186 PDs were analyzed, disclosing low in-hospital mortality (≤1.6%) but high morbidity, with a 73% benchmark morbidity rate cumulated within 6 months following surgery. Benchmark cutoffs for pancreatic fistulas (B-C), severe complications (≥ grade 3), and failure-to-rescue rate were 19%, 30%, and 9%, respectively. The ASA ≥3 cohort showed comparable morbidity but a higher in hospital-mortality (3% vs 1.6%) and failure-to-rescue rate (16% vs 9%) than the benchmarks. The proportion of benchmark cases performed varied greatly across centers and continents for both open (9%–93%) and minimally invasive (11%–62%) PD. Centers operating mostly on complex PD cases disclosed better results than those with a majority of low-risk cases. Conclusion: The proposed outcome benchmarks for PD, established in a large-scale international patient cohort and tested in 2 different cohorts, may allow for meaningful comparisons between different patient cohorts, centers, countries, and surgical techniques.

4 May 2017 in Journal of Surgical Oncology
Verified
Journal Article
Closed access
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IDInês Direito
Inês Direito
JPJorge Paulino
Jorge Paulino
Emanuel VigiaEmanuel Vigia
Emanuel Vigia
MBMaria Brito
Maria Brito
Graça SoveralGraça Soveral
Graça Soveral

7 August 2023 in Proteomes
Verified
Journal Article
Open access
PDF file
LRLuis Ramalhete
Luis Ramalhete
Emanuel VigiaEmanuel Vigia
Emanuel Vigia
Rúben AraújoRúben Araújo
Rúben Araújo
HMHugo Pinto Marques
Hugo Pinto Marques
Pancreatic cancer is a devastating disease that has a grim prognosis, highlighting the need for improved screening, diagnosis, and treatment strategies. Currently, the sole biomarker for pancreatic ductal adenocarcinoma (PDAC) authorized by the U.S. Food and Drug Administration is CA 19-9, which proves to be the most beneficial in tracking treatment response rather than in early detection. In recent years, proteomics has emerged as a powerful tool for advancing our understanding of pancreatic cancer biology and identifying potential biomarkers and therapeutic targets. This review aims to offer a comprehensive survey of proteomics’ current status in pancreatic cancer research, specifically accentuating its applications and its potential to drastically enhance screening, diagnosis, and treatment response. With respect to screening and diagnostic precision, proteomics carries the capacity to augment the sensitivity and specificity of extant screening and diagnostic methodologies. Nonetheless, more research is imperative for validating potential biomarkers and establishing standard procedures for sample preparation and data analysis. Furthermore, proteomics presents opportunities for unveiling new biomarkers and therapeutic targets, as well as fostering the development of personalized treatment strategies based on protein expression patterns associated with treatment response. In conclusion, proteomics holds great promise for advancing our understanding of pancreatic cancer biology and improving patient outcomes. It is essential to maintain momentum in investment and innovation in this arena to unearth more groundbreaking discoveries and transmute them into practical diagnostic and therapeutic strategies in the clinical context.

1 October 2004 in Neurochemistry International
Verified
Journal Article
Closed access
TATiago Alfaro
Tiago Alfaro
Emanuel VigiaEmanuel Vigia
Emanuel Vigia
COCatarina R Oliveira
Catarina R Oliveira
Rodrigo CunhaRodrigo Cunha
Rodrigo Cunha

19 July 2007 in Surgical and Radiologic Anatomy
Verified
Journal Article
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PDF file
PDP. Donato
P. Donato
PCP. Coelho
P. Coelho
HRH. Rodrigues
H. Rodrigues
Emanuel VigiaEmanuel Vigia
Emanuel Vigia
JFJ. Fernandes
J. Fernandes
ABA. Bernardes
A. Bernardes

Verified
Journal Article
Open access
PDF file
Emanuel VigiaEmanuel Vigia
Emanuel Vigia
LRLuis Ramalhete
Luis Ramalhete
RRRita Ribeiro
Rita Ribeiro
IBInês Figueiredo de Barros
Inês Figueiredo de Barros
BCBeatriz Chumbinho
Beatriz Chumbinho
HMHugo Pinto Marques
Hugo Pinto Marques
Introduction: Pancreas transplantation is currently the only treatment that can re-establish normal endocrine pancreatic function. Despite all efforts, pancreas allograft survival and rejection remain major clinical problems. The purpose of this study was to identify features that could signal patients at risk of pancreas allograft rejection. Methods: We collected 74 features from 79 patients who underwent simultaneous pancreas–kidney transplantation (SPK) and used two widely-applicable classification methods, the Naive Bayesian Classifier and Support Vector Machine, to build predictive models. We used the area under the receiver operating characteristic curve and classification accuracy to evaluate the predictive performance via leave-one-out cross-validation. Results: Rejection events were identified in 13 SPK patients (17.8%). In feature selection approach, it was possible to identify 10 features, namely: previous treatment for diabetes mellitus with long-term Insulin (U/I/day), type of dialysis (peritoneal dialysis, hemodialysis, or pre-emptive), de novo DSA, vPRA_Pre-Transplant (%), donor blood glucose, pancreas donor risk index (pDRI), recipient height, dialysis time (days), warm ischemia (minutes), recipient of intensive care (days). The results showed that the Naive Bayes and Support Vector Machine classifiers prediction performed very well, with an AUROC and classification accuracy of 0.97 and 0.87, respectively, in the first model and 0.96 and 0.94 in the second model. Conclusion: Our results indicated that it is feasible to develop successful classifiers for the prediction of graft rejection. The Naive Bayesian generated nomogram can be used for rejection probability prediction, thus supporting clinical decision making.