Montserrat Alonso-Sardón

Prof. Dr. Montserrat Alonso-Sardón

orcid
Universidad de Salamanca

Research Focus & Metrics

Academic Career Length

19Years (2008-Present)

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

Representative Publications

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5 July 2018 in BMC Infectious Diseases
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VVVirginia Velasco-Tirado
Virginia Velasco-Tirado
Montserrat Alonso-SardónMontserrat Alonso-Sardón
Montserrat Alonso-Sardón
ALAmparo Lopez-Bernus
Amparo Lopez-Bernus
ÁRÁngela Romero-Alegría
Ángela Romero-Alegría
FBFrancisco Javier Burguillo
Francisco Javier Burguillo
MBMoncef Belhassen-Garcia
Moncef Belhassen-Garcia
Cystic echinococcosis (CE) is a well-known neglected parasitic disease. However, evidence supporting the four current treatment modalities is inadequate, and treatment options remain controversial. The aim of this work is to analyse the available data to answer clinical questions regarding medical treatment of CE. A thorough electronic search of the relevant literature without language restrictions was carried out using PubMed (Medline), Cochrane Central Register of Controlled Trials, BioMed, Database of Abstracts of Reviews of Effects, and Cochrane Plus databases up to February 1, 2017. All descriptive studies reporting an assessment of CE treatment and published in a peer-reviewed journal with available full-text were considered for a qualitative analysis. Randomized controlled trials were included in a quantitative meta-analysis. We used the standard methodological procedures established by the Preferred Reporting Items for Systematic Reviews and Meta-Analyses statement. We included 33 studies related to the pharmacological treatment of CE in humans. Of these, 22 studies with levels of evidence 2 to 4 were qualitatively analysed, and 11 randomized controlled trials were quantitatively analysed by meta-analysis. Treatment outcomes are better when surgery or PAIR (Puncture, Aspiration, Injection of protoscolicidal agent and Reaspiration) is combined with benzimidazole drugs given pre- and/or post-operation. Albendazole chemotherapy was found to be the primary pharmacological treatment to consider in the medical management of CE. Nevertheless, combined treatment with albendazole plus praziquantel resulted in higher scolicidal and anti-cyst activity and was more likely to result in cure or improvement relative to albendazole alone.

27 June 2017 in BMC Infectious Diseases
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VVVirginia Velasco-Tirado
Virginia Velasco-Tirado
ÁRÁngela Romero-Alegría
Ángela Romero-Alegría
MBMoncef Belhassen-Garcia
Moncef Belhassen-Garcia
Montserrat Alonso-SardónMontserrat Alonso-Sardón
Montserrat Alonso-Sardón
CECarmen Esteban-Velasco
Carmen Esteban-Velasco
LMLuis Muñoz-Bellvis
Luis Muñoz-Bellvis
Cystic echinococcosis (CE) is a chronic, complex and neglected zoonotic disease. CE occurs worldwide. In humans, it may result in a wide spectrum of clinical manifestations, ranging from asymptomatic infection to fatal disease. Clinical management procedures have evolved over decades without adequate evaluation. Despite advances in surgical techniques and the use of chemotherapy, recurrence remains one of the major problems in the management of hydatid disease. The aim of this study was to determine the frequency of CE recurrence and the risk factors involved in recurrence. A descriptive longitudinal-retrospective study was designed. We reviewed all patients diagnosed with CE according to ICD-9 (code 122–0 to 122–9) criteria admitted at Complejo Asistencial Universitario de Salamanca, Spain, between January 1998 and December 2015. Among the 217 patients studied, 25 (11.5%) had a hydatid recurrence after curative intention treatment. Median duration of recurrence’s diagnosis was 12.35 years (SD: ±9.31). The likelihood of recurrence was higher [OR = 2.7; 95% CI, 1.1–7.1; p < 0.05] when the cyst was located in organs other than liver and lung, 22.6% (7/31) vs 14.2% (31/217) in the cohort. We detected a chance of recurrence [OR = 2.3; 95% CI, 1.4–6.5; p > 0.05] that was two times higher in those patients treated with a combination of antihelminthic treatments and surgical intervention (20/141, 14.2%) than in patients treated with surgical intervention alone (5/76, 6.6%). Despite advances in diagnosis and therapeutic techniques in hydatid disease, recurrence remains one of the major problems in the management of hydatid disease. The current management and treatment of recurrences is still largely based on expert opinion and moderate-to-poor quality of evidence. Consequently, large prospective and multicenter studies will be needed to provide definitive recommendations for its clinical management.

23 January 2019 in BMC Health Services Research
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Montserrat Alonso-SardónMontserrat Alonso-Sardón
Montserrat Alonso-Sardón
HIHelena Iglesias-De-Sena
Helena Iglesias-De-Sena
LFLuz Celia Fernández-Martín
Luz Celia Fernández-Martín
JOSÉ ANTONIO MIRÓN-CANELOJOSÉ ANTONIO MIRÓN-CANELO
JOSÉ ANTONIO MIRÓN-CANELO
The aim of this study was to assess the relation between perceived social support and personal autonomy of individuals with intellectual disabilities and Health-Related Quality of Life. A cross-sectional study with a multicentre sample was carried out including 162 institutionalized individuals with intellectual disability. The measurement tool was a structured questionnaire with sociodemographic variables, and three scales: Functional Independence Measure(FIM) scale, Duke-UNC Functional Social Support Questionnaire, and SF-36 Health Survey, which were completed during an individual/family interview. The perception of received social support is high on all 11 items of the Duke-UNC questionnaire, with an average of 3.45 for item-1 and 4.85 for item-11, which represents a total perceived support of an average 47.98 points (±SD7.30) (normal support). The Mental-Health component is rated worse than Physical-Health (67.41 vs. 71.74). The average rates for the different dimensions range from 57.34 points for Social-Functioning (the lowest rating) to 79.61 points for Bodily-Pain (highest rating). A multiple linear regression analysis reveals that the dimensions of Physical-Functioning (p < 0.001), Role-Physical (p = 0.016) and Bodily-Pain (p = 0.022), which are elements of the Physical-Health component, are independent predictive variables with the Degree of Autonomy (FIM) as a dependent variable. Social-Support (Duke-UNC) as a dependent variable is determined by the dimensions of Vitality (p = 0.014), Role-Emotional (p = 0.001) and Mental-Health (p < 0.001), which are part of the Mental-Health component and act as independent predictive variables. Individuals with intellectual disability and a higher degree of personal autonomy determined by institutional and family support report better Health and Quality of Life.

22 February 2021 in PLOS Neglected Tropical Diseases
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LALia Monsalve Arteaga
Lia Monsalve Arteaga
JBJuan Luis Muñoz Bellido
Juan Luis Muñoz Bellido
ANAnabel Negredo
Anabel Negredo
JCJorge García Criado
Jorge García Criado
MLMaria Carmen Vieira Lista
Maria Carmen Vieira Lista
MBMoncef Belhassen-Garcia
Moncef Belhassen-Garcia
Crimean-Congo haemorrhagic fever (CCHF) is a widespread tick-borne viral disease caused by the Crimean-Congo haemorrhagic fever virus (CCHFV). CCHFV has been implicated in severe viral haemorrhagic fever outbreaks. During the summer of 2016, the first two cases with genotype III (Africa 3) were reported in Spain. The first objective of our study was to determine the presence of CCHFV among patients with febrile illness during the spring and summer periods in 2017 and 2018. Finally, we perform a phylogenetic analysis to determine the genotype of the virus. We prospectively evaluated patients aged 18 years and older who came to the emergency department at the Salamanca’s University Hospital (HUS) with fever. Specific IgM and IgG antibodies against CCHFV by ELISA and one immunofluorescence assay against two different proteins (nucleoprotein and glycoprotein C) was done. Moreover, molecular detection by Real Time PCR was performed in all collected samples. A phylogenetic analysis was carried out to genetically characterize CCHFV detected in this study. A total of 133 patients were selected. The mean age was 67.63 years and 60.9% were male. One-third of the patients presented an acute undifferentiated febrile illness. Three patients had anti-CCHFV IgG antibodies, suggesting a previous infection. One patient had anti-CCHFV IgM antibodies and a confirmatory RT-PCR. Phylogenetic analysis indicated that the virus corresponds to the European genotype V. This patient came to the emergency department at HUS in August 2018 presenting an acute febrile syndrome with thrombopenia and liver impairment. We describe a new circulation of European genotype V CCHFV in Spain. Moreover, this study suggests that CCHFV is an identifiable cause of febrile illness of unknown origin in Spain. Thus, CCHF could be suspected in patients with fever, liver damage, and/or haemorrhagic disorders, particularly in people with risk activities who present in the spring or summer. Crimean Congo hemorrhagic fever (CCHF) is a widespread tick-borne viral disease caused by a Nairovirus of the Bunyaviridae family. CCHFV has been considered to be one of the eight priority emergent pathogens for the last 3 years by the World Health Organization (WHO), requiring urgent attention in Research, Development and Innovation (R&D&I) because of its epidemic potential in the near future In this study, we describe a new circulation of European genotype V CCHFV in Spain. Moreover, this study suggests that CCHFV is an identifiable cause of febrile illness of unknown origin in Spain. Thus, CCHF could be suspected in patients with fever, liver damage, and/or haemorrhagic disorders, particularly in people with risk activities who present in the spring or summer.

4 September 2019 in The American Journal of Tropical Medicine and Hygiene
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JCJavier Collado-Aliaga
Javier Collado-Aliaga
ÁRÁngela Romero-Alegría
Ángela Romero-Alegría
Montserrat Alonso-SardónMontserrat Alonso-Sardón
Montserrat Alonso-Sardón
AMAntonio Muro
Antonio Muro
ALAmparo López-Bernus
Amparo López-Bernus
MBMoncef Belhassen-Garcia
Moncef Belhassen-Garcia
Cystic echinococcosis (CE) is a chronic, complex, and overlooked zoonotic disease caused by Echinococcus granulosus. In humans, it may result in a wide spectrum of clinical manifestations depending on the type of complications, ranging from asymptomatic infection to fatal disease. The primary complications and risk factors associated with CE are not well defined. We performed a retrospective, observational study of inpatients diagnosed with CE from January 1998 to December 2017 in the public health-care system of western Spain. Five hundred and six cases were analyzed. More than half of the patients (302 [59.7%]) were asymptomatic, and the diagnoses were made incidentally. A total of 204 (40.3%) patients had complications associated with CE; 97 (47.5%) were mechanical, 62 (30.4%) were infectious, 15 (7.3%) were immunoallergic, and 30 (14.7%) involved a combination of complications. Mortality was higher in patients with mechanical complications (9.4%) than in patients with infectious complications (5.6%) and in patients with allergic complications (0%) (odds ratio = 19.7, 95% CI, 4.3–89.1, P < 0.001). In summary, CE frequently results in complications, especially in the liver in younger patients and, regardless of other variables, such as size or stage of cyst. Mechanical problems and superinfection are the most frequent complications. CE is an obligatory diagnosis in patients with urticarial or anaphylactoid reactions of unknown cause in endemic areas.

16 October 2023 in Infectious Diseases of Poverty
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GPGuillermo Pascual-Vázquez
Guillermo Pascual-Vázquez
Montserrat Alonso-SardónMontserrat Alonso-Sardón
Montserrat Alonso-Sardón
BRBeatriz Rodríguez-Alonso
Beatriz Rodríguez-Alonso
JLJavier Pardo Lledias
Javier Pardo Lledias
AAAngela Romero Alegría
Angela Romero Alegría
MBMoncef Belhassen-Garcia
Moncef Belhassen-Garcia
Background: The complexity of the Chagas disease and its phases is impossible to have a unique test for both phases and a lot of different epidemiological scenarios. Currently, serology is the reference standard technique; occasionally, results are inconclusive, and a different diagnostic technique is needed. Some guidelines recommend molecular testing. A systematic review and meta-analysis of available molecular tools/techniques for the diagnosis of Chagas disease was performed to measure their heterogeneity and efficacy in detecting Trypanosoma cruzi infection in blood samples. Methods: A systematic review was conducted up to July 27, 2022, including studies published in international databases. Inclusion and exclusion criteria were defined to select eligible studies. Data were extracted and presented according to PRISMA 2020 guidelines. Study quality was assessed using Quality Assessment of Diagnostic Accuracy Studies-2 (QUADAS-2). A random-effects model was used to calculate pooled sensitivity, specificity, and diagnostic odds ratio (DOR). Forest plots and a summary of the receiving operating characteristics (SROC) curves displayed the outcomes. Heterogeneity was determined by I2 and Tau2 statistics and P values. Funnel plots and Deek's test were used to assess publication bias. A quantitative meta-analysis of the different outcomes in the two different clinical phases was performed. Results: We identified 858 records and selected 32 papers. Studies pertained to endemic countries and nonendemic areas with adult and paediatric populations. The sample sizes ranged from 17 to 708 patients. There were no concerns regarding the risk of bias and applicability of all included studies. A positive and nonsignificant correlation coefficient (S = 0.020; P = 0.992) was obtained in the set of studies that evaluated diagnostic tests in the acute phase population (ACD). A positive and significant correlation coefficient (S = 0.597; P < 0.000) was obtained in the case of studies performed in the chronic phase population (CCD). This resulted in high heterogeneity between studies, with the master mix origin and guanidine addition representing significant sources. Interpretation/Conclusions and relevance: The results described in this meta-analysis (qualitative and quantitative analyses) do not allow the selection of the optimal protocol of molecular method for the study of Trypanosoma cruzi infection in any of its phases, among other reasons due to the complexity of this infection. Continuous analysis and optimization of the different molecular techniques is crucial to implement this efficient diagnosis in endemic areas.