Aristotelis Tsiakalos

Dr. Aristotelis Tsiakalos


Research Focus & Metrics

Academic Career Length

18Years (2009-Present)

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

Representative Publications

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22 April 2020 in Diagnostics
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Journal Article
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FDFrancesca Donders
Francesca Donders
RLRisa Lonnée-Hoffmann
Risa Lonnée-Hoffmann
ATAristotelis Tsiakalos
Aristotelis Tsiakalos
WMWerner Mendling
Werner Mendling
JOJosé Martinez de Oliveira
José Martinez de Oliveira
IWIsidog Covid-19 Guideline Workgroup
Isidog Covid-19 Guideline Workgroup
Providing guidelines to health care workers during a period of rapidly evolving viral pandemic infections is not an easy task, but it is extremely necessary in order to coordinate appropriate action so that all patients will get the best possible care given the circumstances they are in. With these International Society of Infectious Disease in Obstetrics and Gynecology (ISIDOG) guidelines we aim to provide detailed information on how to diagnose and manage pregnant women living in a pandemic of COVID-19. Pregnant women need to be considered as a high-risk population for COVID-19 infection, and if suspected or proven to be infected with the virus, they require special care in order to improve their survival rate and the well-being of their babies. Both protection of healthcare workers in such specific care situations and maximal protection of mother and child are envisioned.

1 October 2009 in Liver International
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ATAristotelis Tsiakalos
Aristotelis Tsiakalos
AKAggelos Karatzaferis
Aggelos Karatzaferis
PZPanayiotis D Ziakas
Panayiotis D Ziakas
GHGregorios Hatzis
Gregorios Hatzis

1 July 2010 in The Journal of Clinical Endocrinology & Metabolism
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ATAristotelis Tsiakalos
Aristotelis Tsiakalos
IXIoannis D. Xynos
Ioannis D. Xynos
NSNikolaos V. Sipsas
Nikolaos V. Sipsas
Gregory KaltsasGregory Kaltsas
Gregory Kaltsas
Context: Data from previous retrospective studies and case reports have suggested that infectious diseases of the central nervous system could cause pituitary deficiency. Objective: The aim of this prospective study was to investigate pituitary function in patients admitted with infectious meningitis during the acute phase and after 12 months. Design: Sixteen patients were studied. Basal pituitary function was assessed within 24 h of admission. Twelve of these patients underwent both basal and stimulated (insulin tolerance test) pituitary testing after 12 months. Results: During the acute phase, five patients (31.25%) showed apparent pituitary hormone deficiencies: two patients with gonadotropic and three patients with somatotropic deficiency. The exact status of corticosteroid sufficiency could not be defined in four patients, because no dynamic test was performed in the acute phase. In addition, seven patients (44%) had probable low T3 syndrome. At 12 months, five patients (31.25%), two with viral and three with bacterial meningitis, had at least one anterior pituitary hormone deficiency. Two patients had isolated corticotropic and one isolated somatotropic deficiency. Combined corticotropic and somatotropic deficiencies were detected in two patients. New-onset deficiencies accounted for four of those five patients, whereas one patient demonstrated persisting somatotropic deficiency. All cases of low T3 syndrome resolved at 12 months. Conclusions: Isolated or combined pituitary deficiencies, which could present at the acute phase and/or occur at a later stage, can develop in a considerable proportion of patients after acute infectious meningitis.

15 September 2011 in The Journal of Infectious Diseases
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ATAristotelis Tsiakalos
Aristotelis Tsiakalos
JRJohn Routsias
John Routsias
TKTheodore Kordossis
Theodore Kordossis
HMHaralampos M. Moutsopoulos
Haralampos M. Moutsopoulos
ATAthanasios G. Tzioufas
Athanasios G. Tzioufas
NSNikolaos V. Sipsas
Nikolaos V. Sipsas
Background. Circulating autoantibodies to endogenous erythropoietin (anti-Epo) are detected in human immunodeficiency virus type 1 (HIV-1)–infected patients and represent a risk factor for anemia. The aim of this study was to map the B-cell epitopes on the Epo molecule.

Verified
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Gilbert DondersGilbert Donders
Gilbert Donders
SGSvitrigaile Grinceviciene
Svitrigaile Grinceviciene
KHKai Haldre
Kai Haldre
RLRisa Lonnee-Hoffmann
Risa Lonnee-Hoffmann
FDFrancesca Donders
Francesca Donders
OGon the behalf of the COVID-19 ISIDOG Guideline Group
on the behalf of the COVID-19 ISIDOG Guideline Group
Introduction. Sars-CoV-2 infection poses particular problems in pregnancy, as the infection more frequently causes severe complications than in unaffected pregnant women or nonpregnant women with SARS-CoV-2 infection. Now that vaccination is available and rapidly being implemented worldwide, the question arises whether pregnant women should be vaccinated, and if so, whether they should receive priority. Methods. Available scientific data and available guidelines about vaccination against SARS-CoV-2 were collected by the Guideline Committee of the International Society of Infectious Diseases in Obstetrics and Gynecology (ISIDOG) and were analyzed, discussed and summarized as guidelines for healthcare workers caring for pregnant women. Concluding statements were graded according to the Oxford evidence-based medicine grading system. Results. There is evidence to consider pregnancy as a risk factor for serious complications of COVID-19 infection, even in the absence of additional risk factors, such as hypertension, diabetes and obesity which increase these risks even more in pregnancy. Currently available data slightly favor mRNA-based vaccines above vector-based vaccines during pregnancy and breastfeeding, until more safety data become available. Conclusion. ISIDOG advises policy makers and societies to prioritize pregnant women to receive vaccination against SARS-CoV-2 and favor the mRNA vaccines until further safety information becomes available.

30 August 2024 in Journal of Clinical Medicine
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KAKarolina Akinosoglou
Karolina Akinosoglou
Georgios SchinasGeorgios Schinas
Georgios Schinas
EPEleni Polyzou
Eleni Polyzou
ATAristotelis Tsiakalos
Aristotelis Tsiakalos
Gilbert DondersGilbert Donders
Gilbert Donders
Vulvovaginal candidosis (VVC) represents a frequent and cumbersome vaginal infection. Recurrent and/or persistent infections remain common among a significant number of patients despite the use of antifungals. Probiotics offer a promising adjunctive or alternative therapeutic strategy to antifungals in the management of VVC. We aimed to explore and thoroughly examine the various roles and potential applications of probiotics in VVC. A comprehensive literature search was conducted to identify relevant clinical trials and systematic reviews that examine the effectiveness of probiotics in the treatment and prevention of VVC and recurrent VVC (rVVC). Following the initial screening of 4563 articles, a total of 25 clinical studies and seven systematic reviews were finally included in this analysis. The studies reviewed provide a generally positive yet inconsistent view of the efficacy of probiotics in managing VVC, including clinical, mycological response, and prevention perspectives. Nonetheless, fluconazole remains more effective than probiotics in treating VVC, while the combination of the two seems to reduce recurrence and improve symptoms significantly. For prevention, probiotics seem to improve vaginal health and reduce symptoms, while safety and tolerability are consistently reported across the studies, affirming that probiotics represent a low-risk intervention. However, clear conclusions are difficult to establish since relative studies explore different clinical endpoints and follow-up times, variable populations are included, different probiotics are used, and diverse schedules and regimens are administered. We propose that future studies should study the benefit of probiotics in well-defined categories such as (1) treatment with acute probiotics instead of antifungals, (2) adjuvant probiotic therapy together or after antifungals, and (3) VVC recurrence prevention using probiotics.