Timothée KLOPFENSTEIN

Dr. Timothée KLOPFENSTEIN

Infectious Diseases Department, Nord Franche-Comté Hospital, Montbeliard, France
orcid

Research Focus & Metrics

Academic Career Length

8Years (2019-Present)

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

Representative Publications

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1 August 2020 in Medecine Et Maladies Infectieuses
Verified
Journal Article
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TKTimothée KLOPFENSTEIN
Timothée KLOPFENSTEIN
NKN.J. Kadiane-Oussou
N.J. Kadiane-Oussou
LTL. Toko
L. Toko
PRP.-Y. Royer
P.-Y. Royer
QLQ. Lepiller
Q. Lepiller
Souheil ZayetSouheil Zayet
Souheil Zayet

1 August 2020 in Medecine Et Maladies Infectieuses
Verified
Journal Article
Closed access
TKTimothée KLOPFENSTEIN
Timothée KLOPFENSTEIN
Souheil ZayetSouheil Zayet
Souheil Zayet
ALA. Lohse
A. Lohse
JBJ.-C. Balblanc
J.-C. Balblanc
JBJ. Badie
J. Badie
TCT. Conrozier
T. Conrozier

1 October 2020 in Microbes and Infection
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Journal Article
Closed access
Souheil ZayetSouheil Zayet
Souheil Zayet
NKN’dRi Juliette Kadiane-Oussou
N’dRi Juliette Kadiane-Oussou
QLQuentin Lepiller
Quentin Lepiller
HZHajer Zahra
Hajer Zahra
PRPierre-Yves Royer
Pierre-Yves Royer
TKTimothée KLOPFENSTEIN
Timothée KLOPFENSTEIN

1 November 2020 in International Journal of Infectious Diseases
Verified
Journal Article
Open access
TKTimothée KLOPFENSTEIN
Timothée KLOPFENSTEIN
HZHajer Zahra
Hajer Zahra
NKN’dRi Juliette Kadiane-Oussou
N’dRi Juliette Kadiane-Oussou
QLQuentin Lepiller
Quentin Lepiller
PRPierre-Yves Royer
Pierre-Yves Royer
Souheil ZayetSouheil Zayet
Souheil Zayet
New loss of smell or taste was not included among the common symptoms of COVID-19 until March 2020 when the pandemic started in Western countries. We aim to describe the prevalence and features of anosmia and dysgeusia in COVID-19 patients. We retrospectively investigated the clinical features of confirmed cases of COVID-19 in Nord Franche-Comté Hospital, Trevenans, France, between March, 1st and March, 14th 2020. We used SARS-CoV-2 real-time RT-PCR in respiratory samples to confirm the cases. Of the 70 patients enrolled, the mean age was 57.0 years, and 29 patients (41%) were men. Median Charlson comorbidity index was 1.70 (±2.5). Twenty-seven (39%) patients had pneumonia. Fatigue (93%[65]), cough (80%[55]), and fever (77%[54]) were the three main symptoms. Neurologic symptoms were present in more than half of the patients: anosmia (53%[37]) and dysgeusia (48%[34]). The mean duration of anosmia was 7.4 (±5, [1–21]) days, and 51% (36/70) of patients recovered before 28 days of evolution. Only one patient with anosmia had not recovered at the end of the follow-up. Patients with anosmia had pneumonia less often (10/37 vs 17/33, p = 0.036), were hospitalized less often (13/37 vs 20/33, p = 0.033), and needed oxygen therapy less often (6/37 vs 17/33, p = 0.002) than patients without anosmia. There were no statistically significant differences for viral load between patients with anosmia and patients without anosmia (5.5 [2.0−8.6] vs 5.3 [2.1−8.5] log copies/mL respectively, p = 0.670). The fatality of COVID-19 in our study was 6%, with four deaths. Anosmia and dysgeusia are present in half of COVID-19 patients. The mean duration of anosmia was 7 days, and the outcome seems favorable in less than 28 days.

12 August 2021 in Microorganisms
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Journal Article
Open access
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Souheil ZayetSouheil Zayet
Souheil Zayet
HZHajer Zahra
Hajer Zahra
PRPierre-Yves Royer
Pierre-Yves Royer
CTCan Tipirdamaz
Can Tipirdamaz
JMJulien Mercier
Julien Mercier
TKTimothée KLOPFENSTEIN
Timothée KLOPFENSTEIN
(1) Background. Post-COVID-19 syndrome is defined as the persistence of symptoms after confirmed SARS-CoV-2 infection. (2) Methods. ANOSVID is an observational retrospective study in Nord Franche-Comté Hospital in France that included adult COVID-19 patients confirmed by RT-PCR from 1 March 2020 to 31 May 2020. The aim was to describe patients with post-COVID-19 syndrome with persistent symptoms (PS group) and to compare them with the patients without persistent symptoms (no-PS group). (3) Results. Of the 354 COVID-19 patients, 35.9% (n = 127) reported persistence of at least one symptom after a mean of 289.1 ± 24.5 days after symptom onset. Moreover, 115 patients reported a recurrence of symptoms after recovery, and only 12 patients reported continuous symptoms. The mean age of patients was 48.6 years (19–93) ± 19.4, and 81 patients (63.8%) were female. Patients in the PS group had a longer duration of symptoms of initial acute SARS-CoV-2 infection than patients in the no-PS group (respectively, 57.1 ± 82.1 days versus 29.7 ± 42.1 days, p < 0.001). A majority of patients (n = 104, 81.9%) reported three or more symptoms. The most prevalent persistent symptoms were loss of smell (74.0%, n = 94), fatigue (53.5%, n = 68), loss of taste (31.5%, n = 40), and dyspnea (30.7%, n = 39). These were followed by pain symptoms (26.8% (n = 34), 26.0% (n = 33), 24.4% (n = 31); headache, arthralgia, and myalgia, respectively). More than half of patients reporting persistent symptoms (58%, n = 73) were healthcare workers (HCWs). Among outpatients, this population was more present in the PS group than the no-PS group ((86.6%) n = 71/82 versus (72.2%) n = 109/151, p = 0.012). Post-COVID-19 syndrome was more frequent in patients with a past history of chronic rhinosinusitis (8.7% (n = 11%) versus 1.3% (n = 3), p < 0.001). No significant difference was found regarding clinical characteristics and outcome, laboratory, imaging findings, and treatment received in the two groups. (4) Conclusions. More than a third of our COVID-19 patients presented persistent symptoms after SARS-CoV-2 infection, particularly through loss of smell, loss of taste, fatigue, and dyspnea, with a high prevalence in HCWs among COVID-19 outpatients.

28 October 2021 in Pathogens
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Journal Article
Open access
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Souheil ZayetSouheil Zayet
Souheil Zayet
SLStéphane Lang
Stéphane Lang
PGPauline Garnier
Pauline Garnier
APAlix PIERRON
Alix PIERRON
JPJulie Plantin
Julie Plantin
VGVincent Gendrin
Vincent Gendrin
(1) Background: Leclercia adecarboxylata (L. adecarboxylata) is a gram-negative bacillus of the Enterobacteriaceae family, which is uncommonly isolated from clinical specimens. L. adecarboxylata is considered as an aquatic opportunistic pathogen and most of the human infections are polymicrobial and usually occur in immunocompromised hosts. (2) Methods: In this retrospective study, we included all L. adecarboxylata strains since the introduction of MALDI-TOF MS in the Microbiology Department of Nord Franche-Comté Hospital, France (from 1 March 2015 to 31 July 2019). We studied demographic characteristics, comorbidities, characteristics of the current infection and outcome as well as antimicrobial susceptibility testing in all isolates. (3) Results: A total of 8 samples were identified (in 6 patients (4M/2F), with a recurrent L. adecarboxylata infection in 2 patients). The patients’ mean age was 66.2 years (range: 19–84). All patients were considered as immunocompetent, except a peritoneal dialysis patient with kidney transplantation. An exposition to an aquatic environment was identified in one patient. The most prevalent clinical feature was catheter-associated male urinary tract infection (in 3 cases) followed by ventilator-associated pneumonia (in 2 cases). One of 6 patients presented L. adecarboxylata bacteremia. L. adecarboxylata was part of a polymicrobial infection in 4 patients. The isolates showed a high susceptibility to all tested antibiotics, except one strain, which was resistant to fosfomycin. All patients with L. adecarboxylata infection were treated with antibiotics with a favorable outcome. (4) Conclusion: This study confirms the pathogenicity of L. adecarboxylata, even in immunocompetent patients, with a high susceptibility to antibiotics.