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Caroline Thomas

University of French Guiana

ORCID: 0000-0003-3356-0840

Publishes on Frailty in Older Adults, Intensive Care Unit Cognitive Disorders, Immunodeficiency and Autoimmune Disorders. 38 papers and 2k citations.

38Publications
2kTotal Citations

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Sarcopenia is predictive of nosocomial infection in care of the elderly
Gaëlle Cosquéric, A Sebag, Cyril Ducolombier et al.|British Journal Of Nutrition|2006
Cited by 245Open Access

Protein-energy malnutrition and nosocomial infection (NI) are frequent in elderly patients, and a causal link between the two has often been suggested. The aim of the present study was to identify the nutritional parameters predictive of NI in elderly patients. We assessed on admission 101 patients (sixty-six women, thirty-five men, aged over 65 years) admitted to an acute care of the elderly department. Sarcopenia was detected by dual-energy X-ray absorptiometry, with appendicular skeletal muscle mass expressed with respect to body area. Weight, BMI, albuminaemia, serum transthyretin and C-reactive protein values were also determined on admission, and known risk factors, such as functional dependence and invasive biomedical material, were also evaluated. After up to 3 weeks of hospitalisation, patients were classified according to whether they had developed an NI. After 3 weeks of hospitalisation, we found that twenty-nine patients had suffered an NI, occurring after a mean of 16.1 d. Patients who were sarcopenic on admission had a significantly higher risk of contracting an NI (relative risk 2.1, 95 % CI 1.1, 3.8). None of the other morphometric or biological parameters differed significantly between the two groups of patients on admission. Patients who experienced an NI were also more likely, on admission, to have a medical device (P=0.02 to P=0.001 depending on the device), to have swallowing problems (P=0.002) or to have restricted autonomy (P<0.01). Sarcopenia on admission to an acute care of the elderly unit, as measured by X-ray absorptiometry, was therefore associated with a doubled risk of NI during the first 3 weeks of hospitalisation.

Effect of Systematic Intensive Care Unit Triage on Long-term Mortality Among Critically Ill Elderly Patients in France
Cited by 238Open Access

<h3>Importance</h3> The high mortality rate in critically ill elderly patients has led to questioning of the beneficial effect of intensive care unit (ICU) admission and to a variable ICU use among this population. <h3>Objective</h3> To determine whether a recommendation for systematic ICU admission in critically ill elderly patients reduces 6-month mortality compared with usual practice. <h3>Design, Setting, and Participants</h3> Multicenter, cluster-randomized clinical trial of 3037 critically ill patients aged 75 years or older, free of cancer, with preserved functional status (Index of Independence in Activities of Daily Living ≥4) and nutritional status (absence of cachexia) who arrived at the emergency department of one of 24 hospitals in France between January 2012 and April 2015 and were followed up until November 2015. <h3>Interventions</h3> Centers were randomly assigned either to use a program to promote systematic ICU admission of patients (n=1519 participants) or to follow standard practice (n=1518 participants). <h3>Main Outcomes and Measures</h3> The primary outcome was death at 6 months. Secondary outcomes included ICU admission rate, in-hospital death, functional status, and quality of life (12-Item Short Form Health Survey, ranging from 0 to 100, with higher score representing better self-reported health) at 6 months. <h3>Results</h3> One patient withdrew consent, leaving 3036 patients included in the trial (median age, 85 [interquartile range, 81-89] years; 1361 [45%] men). Patients in the systematic strategy group had an increased risk of death at 6 months (45% vs 39%; relative risk [RR], 1.16; 95% CI, 1.07-1.26) despite an increased ICU admission rate (61% vs 34%; RR, 1.80; 95% CI, 1.66-1.95). After adjustments for baseline characteristics, patients in the systematic strategy group were more likely to be admitted to an ICU (RR, 1.68; 95% CI, 1.54-1.82) and had a higher risk of in-hospital death (RR, 1.18; 95% CI, 1.03-1.33) but had no significant increase in risk of death at 6 months (RR, 1.05; 95% CI, 0.96-1.14). Functional status and physical quality of life at 6 months were not significantly different between groups. <h3>Conclusions and Relevance</h3> Among critically ill elderly patients in France, a program to promote systematic ICU admission increased ICU use but did not reduce 6-month mortality. Additional research is needed to understand the decision to admit elderly patients to the ICU. <h3>Trial Registration</h3> clinicaltrials.gov Identifier:NCT01508819

New insights into childhood autoimmune hemolytic anemia: a French national observational study of 265 children
Nathalie Aladjidi, Guy Leverger, Thierry Leblanc et al.|Haematologica|2011
Cited by 228Open Access

BACKGROUND: Autoimmune hemolytic anemia is a rare condition in children. Little is known about its initial presentation and the subsequent progression of the disease. DESIGN AND METHODS: Since 2004, a national observational study has been aiming to thoroughly describe cases and identify prognostic factors. Patients from all French hematologic pediatric units have been included if they had a hemoglobin concentration less than 11 g/dL, a positive direct antiglobulin test and hemolysis. Evans' syndrome was defined by the association of autoimmune hemolytic anemia and immunological thrombocytopenic purpura. Data from patients' medical records were registered from birth to last follow-up. Autoimmune hemolytic anemia was classified as primary or secondary. Remission criteria, qualifying the status of anemia at last follow-up, were used with the aim of identifying a subgroup with a favorable prognosis in continuous complete remission. RESULTS: The first 265 patients had a median age of 3.8 years at diagnosis. In 74% of cases the direct antiglobulin test was IgG/IgG+C3d. Consanguinity was reported in 8% of cases and first degree familial immunological diseases in 15% of cases. Evans' syndrome was diagnosed in 37% of cases. Autoimmune hemolytic anemia was post-infectious in 10%, immunological in 53% and primary in 37% of cases. After a median follow-up of 3 years, 4% of children had died, 28% were still treatment-dependent and 39% were in continuous complete remission. In multivariate analysis, IgG and IgG+C3d direct antiglobulin tests were associated with a lower rate of survival with continuous complete remission (adjusted hazard ratio, 0.43; 95% confidence interval, 0.21-0.86). CONCLUSIONS: This nationwide French cohort is the largest reported study of childhood autoimmune hemolytic anemia. The rarity of this condition is confirmed. Subgroups with genetic predisposition and underlying immune disorders were identified.