scholarly journals Failure of Posaconazole Therapy in a Renal Transplant Patient with Invasive Aspergillosis Due to Aspergillus fumigatus with Attenuated Susceptibility to Posaconazole

2011 ◽  
Vol 55 (7) ◽  
pp. 3564-3566 ◽  
Author(s):  
Saskia Kuipers ◽  
Roger J. M. Brüggemann ◽  
Ruud G. L. de Sévaux ◽  
John P. F. A. Heesakkers ◽  
Willem J. G. Melchers ◽  
...  

ABSTRACTWe report the case of a kidney transplant recipient with invasive aspergillosis due toAspergillus fumigatusresistant to voriconazole and intermediately susceptible to posaconazole who failed posaconazole therapy. Plasma posaconazole concentrations indicated an unfavorable ratio of the area under the concentration-time curve over the MIC. Posaconazole should be used with caution for invasive aspergillosis caused by strains with attenuated posaconazole susceptibility, as drug exposure may be inadequate, resulting in therapeutic failure.

2015 ◽  
Vol 53 (3) ◽  
pp. 1034-1037 ◽  
Author(s):  
Caroline Piau ◽  
Mallorie Kerjouan ◽  
Marc Le Mouel ◽  
Solene Patrat-Delon ◽  
Pierre-Louis Henaux ◽  
...  

Here we report in a human, a renal transplant patient, the first disseminated infection withNocardia cerradoensis, isolated after a brain biopsy. Species identification was based on 16S rRNA,gyrB, andhsp65gene analyses. Antibiotic treatment was successful by combining carbapenems and aminoglycosides and then switching to oral trimethoprim-sulfamethoxazole.


2016 ◽  
Vol 60 (9) ◽  
pp. 5130-5134 ◽  
Author(s):  
Maria F. Mojica ◽  
Christopher P. Ouellette ◽  
Amy Leber ◽  
M. Brian Becknell ◽  
Monica I. Ardura ◽  
...  

ABSTRACTStenotrophomonas maltophiliais an emerging multidrug-resistant (MDR) opportunistic pathogen for which new antibiotic options are urgently needed. We report our clinical experience treating a 19-year-old renal transplant recipient who developed prolonged bacteremia due to metallo-β-lactamase-producingS. maltophiliarefractory to conventional treatment. The infection recurred despite a prolonged course of colistimethate sodium (colistin) but resolved with the use of a novel drug combination with clinical efficacy against the patient'sS. maltophiliaisolate.


2020 ◽  
Vol 8 ◽  
pp. 2050313X2095303
Author(s):  
Camille Pennou ◽  
Eileen Javidi ◽  
Julie Lecours ◽  
Annie Bélisle ◽  
Sandra Davar

Trichodysplasia spinulosa is a rare cutaneous disease caused by the trichodysplasia spinulosa–associated polyomavirus. It occurs more frequently in immunocompromised patients, particularly in solid organ transplants. A few successful treatments have been described in the literature. In our report, we present a biopsy-proven trichodysplasia spinulosa case in a kidney transplant recipient who rapidly responded to a reduction of his immunosuppressive therapy.


2019 ◽  
Vol 64 (1) ◽  
Author(s):  
Saskia Kuipers ◽  
Mike M. Ruth ◽  
Mike Mientjes ◽  
Ruud G. L. de Sévaux ◽  
Jakko van Ingen

ABSTRACT We report a case of a 58-year-old renal transplant patient who developed a recurrent urinary tract infection with an extended-spectrum β-lactamase (ESBL)-positive Klebsiella pneumoniae strain in the first month posttransplant. Even though it tested susceptible to carbapenems and despite repeated meropenem treatment, his infection recurred. The infection eventually evolved into epididymitis that was successfully treated with meropenem and bacteriophages. This case demonstrates the difficulty of treating relapsing ESBL-positive Gram-negative infections in renal transplant patients.


2015 ◽  
Vol 53 (12) ◽  
pp. 3947-3950 ◽  
Author(s):  
Ryan F. Relich ◽  
Romney M. Humphries ◽  
H. Reid Mattison ◽  
Jessica E. Miles ◽  
Edward R. Simpson ◽  
...  

Francisella philomiragiais a very uncommon pathogen of humans. Diseases caused by it are protean and have been reported largely in near-drowning victims and those with chronic granulomatous disease. We present a case ofF. philomiragiapneumonia with peripheral edema and bacteremia in a renal transplant patient and review the diverse reports ofF. philomiragiainfections.


2016 ◽  
Vol 54 (12) ◽  
pp. 3028-3033 ◽  
Author(s):  
A. Jayakumar ◽  
R. M. Savic ◽  
C. K. Everett ◽  
D. Benator ◽  
D. Alland ◽  
...  

The Xpert MTB/RIF assay is both sensitive and specific as a diagnostic test. Xpert also reports quantitative output in cycle threshold ( C T ) values, which may provide a dynamic measure of sputum bacillary burden when used longitudinally. We evaluated the relationship between Xpert C T trajectory and drug exposure during tuberculosis (TB) treatment to assess the potential utility of Xpert C T for treatment monitoring. We obtained serial sputum samples from patients with smear-positive pulmonary TB who were consecutively enrolled at 10 international clinical trial sites participating in study 29X, a CDC-sponsored Tuberculosis Trials Consortium study evaluating the tolerability, safety, and antimicrobial activity of rifapentine at daily doses of up to 20 mg/kg of body weight. Xpert was performed at weeks 0, 2, 4, 6, 8, and 12. Longitudinal C T data were modeled using a nonlinear mixed effects model in relation to rifapentine exposure (area under the concentration-time curve [AUC]). The rate of change of C T was higher in subjects receiving rifapentine than in subjects receiving standard-dose rifampin. Moreover, rifapentine exposure, but not assigned dose, was significantly associated with rate of change in C T ( P = 0.02). The estimated increase in C T slope for every additional 100 μg · h/ml of rifapentine drug exposure (as measured by AUC) was 0.11 C T /week (95% confidence interval [CI], 0.05 to 0.17). Increasing rifapentine exposure is associated with a higher rate of change of Xpert C T , indicating faster clearance of Mycobacterium tuberculosis DNA. These data suggest that the quantitative outputs of the Xpert MTB/RIF assay may be useful as a dynamic measure of TB treatment response.


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