Elisabet Viayna

Dr. Elisabet Viayna

orcid

Research Focus & Metrics

Academic Career Length

6Years (2021-Present)

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

Representative Publications

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10 August 2022 in Blood Advances
Verified
Journal Article
Open access
PDF file
EVElisabet Viayna
Elisabet Viayna
EGEric A. Gehrie
Eric A. Gehrie
CBChristopher Blanchette
Christopher Blanchette
GMGeralyn M. Meny
Geralyn M. Meny
GNGhislain Noumsi
Ghislain Noumsi
MRM. Chris Runken
M. Chris Runken

21 January 2022 in Annals of Hepatology
Verified
Journal Article
Open access
CMCarlos Moctezuma-Velazquez
Carlos Moctezuma-Velazquez
GCGraciela Castro-Narro
Graciela Castro-Narro
PSPablo Simó
Pablo Simó
EVElisabet Viayna
Elisabet Viayna
SASusana Aceituno
Susana Aceituno
ATAldo Torre
Aldo Torre
Liver cirrhosis is a major public health issue associated with high morbidity and mortality. The ANSWER trial showed that long-term human albumin (LTA) infusions led to significant reduction of complications and mortality in patients with uncomplicated ascites. The present study aimed to assess the incremental cost of cirrhosis patients treated with LTA plus standard medical treatment (SMT) versus those treated with SMT from the perspective of the Mexican Social Security Institute (IMSS). Cost of illness for patients with cirrhosis and grade 2-3 ascites treated with SMT or with SMT and LTA (following the treatment regimen from ANSWER) over a one-year period was estimated according to the IMSS perspective. Rates of treatments, complications and hospitalizations were based on results from the ANSWER trial. Unit costs from IMSS were gathered from public sources and transformed to 2020 Mexican $ (Mex$). The use of LTA is estimated to require additional annual expenditure derived from the pharmacological cost of human albumin and by the follow up visits required for LTA administration (Mex$28,128). However, this cost may potentially be counterbalanced by the reduction in paracentesis, cirrhosis-related complications and hospitalizations which would lead to cost savings of Mex$33,417 per patient/year. Based on the ANSWER trial results, our study suggests that LTA may result in improved clinical outcomes and reduced costs for the IMSS when administered to cirrhosis patients with uncomplicated ascites.

1 September 2023 in Arquivos de Gastroenterologia
Verified
Journal Article
Open access
CTCarlos Terra
Carlos Terra
EVElisabet Viayna
Elisabet Viayna
LALaura Ayzin
Laura Ayzin
CFCristina Fuster
Cristina Fuster
SASusana Aceituno
Susana Aceituno
CTClaudio Tafla
Claudio Tafla
Background: Cirrhosis is one of the final stages of chronic liver disease. Common causes of cirrhosis include alcoholism and viral hepatitis infections. Cirrhosis can progress from an asymptomatic, compensated phase to decompensation and the appearance of overt symptoms. There is no specific treatment for decompensated cirrhosis. The ANSWER trial positioned long-term albumin infusions as a potential treatment for patients with cirrhosis and uncomplicated ascites. Objective: This study assesses the economic impact of albumin infusions following the ANSWER trial regimen in Brazilian patients with decompensated cirrhosis from the public and private healthcare systems perspectives. Methods: The incremental cost per patient per year was calculated for standard medical treatment (SMT) plus long-term albumin infusions versus SMT alone. Costs of diuretics and albumin were obtained from Banco de Preços em Saúde and the Drug Market Regulation Chamber. Costs for complication and procedures were gathered from the published literature. Costs were transformed to 2021 Brazilian reals (BRL). Incidences of clinical complications and treatments were gathered from the ANSWER trial. Univariate sensitivity analysis was performed by increasing and decreasing all inputs by 20%. Results: The cost per patient per year was 118,759 BRL and 189,675 BRL lower for patients treated with SMT and albumin (compared to SMT only) for the public and private healthcare systems, respectively. The additional cost of albumin was offset by reduced complications and treatments (149,526 BRL and 249,572 BRL, respectively). The univariate sensitivity analysis showed cost savings for both healthcare systems in all the scenarios assessed. Conclusion: This economic analysis suggests that, if the ANSWER trial clinical outcomes translate into real-world effectiveness, addition of albumin infusions to SMT in patients with decompensated cirrhosis may lead to cost savings for the public and private healthcare systems in Brazil.

15 May 2021 in Viruses
Verified
Journal Article
Open access
PDF file
FCFrancisco Javier Candel
Francisco Javier Candel
EVElisabet Viayna
Elisabet Viayna
DCDaniel Callejo
Daniel Callejo
RRRaul Ramos
Raul Ramos
JMJesus San Roman Montero
Jesus San Roman Montero
MRMichael Chris Runken
Michael Chris Runken
The global COVID-19 spread has forced countries to implement non-pharmacological interventions (NPI) (i.e., mobility restrictions and testing campaigns) to preserve health systems. Spain is one of the most severely impacted countries, both clinically and economically. In an effort to support policy decision-making, we aimed to assess the impacts of different NPI on COVID-19 epidemiology, healthcare costs and Gross Domestic Product (GDP). A modified Susceptible-Exposed-Infectious-Removed epidemiological model was created to simulate the pandemic evolution. Its output was used to populate an economic model to quantify healthcare costs and GDP variation through a regression model which correlates NPI and GDP change from 42 countries. Thirteen scenarios combining different NPI were consecutively simulated in the epidemiological and economic models. Both increased testing and stringency could reduce cases, hospitalizations and deaths. While policies based on increased testing rates lead to higher healthcare costs, increased stringency is correlated with greater GDP declines, with differences of up to 4.4% points. Increased test sensitivity may lead to a reduction of cases, hospitalizations and deaths and to the implementation of pooling techniques that can increase throughput testing capacity. Alternative strategies to control COVID-19 spread entail differing economic outcomes. Decision-makers may utilize this tool to identify the most suitable strategy considering epidemiological and economic outcomes.

22 April 2024 in Drugs in Context
Verified
Journal Article
Open access
IHIrsan Hasan
Irsan Hasan
IMIgnatia Sinta Murti
Ignatia Sinta Murti
PBPutut Bayupurnama
Putut Bayupurnama
KKKemal Fariz Kalista
Kemal Fariz Kalista
CHChristina Hill-Zabala
Christina Hill-Zabala
EVElisabet Viayna
Elisabet Viayna
This study aims to assess the cost-effectiveness of human albumin in patients with cirrhosis with spontaneous bacterial peritonitis, hepatorenal syndrome or ascites requiring large-volume paracentesis in the Indonesian healthcare system as a representative of a resource-limited setting.

29 September 2025 in Hepatology Communications
Verified
Journal Article
Open access
RRRahul Rajkumar
Rahul Rajkumar
NDNikki Duong
Nikki Duong
WKW. Ray Kim
W. Ray Kim
EVElisabet Viayna
Elisabet Viayna
TAThomas Ardiles
Thomas Ardiles
KLKunal Lodaya
Kunal Lodaya
Background: Cirrhosis and cirrhosis-related deaths have risen in the United States in recent years. Ascites is a common complication, often requiring large-volume paracentesis (LVP). The American Association for the Study of Liver Diseases (AASLD) recommends the administration of albumin in conjunction with LVP to prevent further complications of cirrhosis. Emerging research in cirrhosis care reveals significant variations in outcomes among different demographics. Therefore, we assessed the use of guideline-adherent albumin and outcomes in U.S. patients undergoing LVPs, particularly at the intersection of race, ethnicity, socioeconomic disparities, and cirrhosis. Methods: This retrospective study utilized Cerner Real World Data to identify adults with cirrhosis and ascites undergoing LVP between January 2016 and June 2022. We assessed albumin utilization patterns across racial and ethnic groups and payor types, and their overall impact on acute kidney injury (AKI)-related hospitalization using an adjusted generalized linear model (aGLM). Results: We identified 736 patients: 301 in the LVP + albumin group and 435 in the LVP-only group. Despite clinical recommendations, only 41% undergoing LVPs received albumin. White patients and commercially insured patients received albumin at higher rates (p=0.042 and p=0.009, respectively). The overall rate of AKI-related admissions within the 30-day post-procedure period was 26%. However, patients who received albumin during LVP had a 36% lower risk of short-term AKI-related hospitalization (OR: 0.64; p=0.03). Conclusions: These findings indicate a potential for broader albumin utilization in U.S. patients with refractory ascites undergoing repeated LVPs to reduce AKI-related admissions.