Multifocal phaeohyphomycosis caused by Exophiala xenobiotica in a kidney transplant recipient.

In recent years, black fungi have been increasingly reported as causing opportunistic infections after solid organ transplantation. Here, we report a case of insidious, relentless, and multifocal Exophiala xenobiotica infection in a kidney transplant recipient that eventually required multiple surgical excisions along with oral and intravenous antifungal combination therapy using liposomal amphotericin B and posaconazole. We compare the present case with all previously reported cases of Exophiala infection after kidney transplantation.

The Kidney Donor Profile Index (KDPI) of marginal donors allocated by standardized pretransplant donor biopsy assessment: distribution and association with graft outcomes.

Pretransplant donor biopsy (PTDB)-based marginal donor allocation systems to single or dual renal transplantation could increase the use of organs with Kidney Donor Profile Index (KDPI) in the highest range (e.g. >80 or >90), whose discard rate approximates 50% in the United States. To test this hypothesis, we retrospectively calculated the KDPI and analyzed the outcomes of 442 marginal kidney transplants (340 single transplants: 278 with a PTDB Remuzzi score<4 [median KDPI: 87; interquartile range (IQR): 78-94] and 62 with a score=4 [median KDPI: 87; IQR: 76-93]; 102 dual transplants [median KDPI: 93; IQR: 86-96]) and 248 single standard transplant controls (median KDPI: 36; IQR: 18-51). PTDB-based allocation of marginal grafts led to a limited discard rate of 15% for kidneys with KDPI of 80-90 and of 37% for kidneys with a KDPI of 91-100. Although 1-year estimated GFRs were significantly lower in recipients of marginal kidneys (-9.3, -17.9 and -18.8 mL/min, for dual transplants, single kidneys with PTDB score<4 and =4, respectively; p<0.001), graft survival (median follow-up 3.3 years) was similar between marginal and standard kidney transplants (hazard ratio: 1.20 [95% confidence interval: 0.80-1.79; p=0.38]). In conclusion, PTDB-based allocation allows the safe transplantation of kidneys with KDPI in the highest range that may otherwise be discarded.

Linezolid levels in a patient with biliary tract sepsis, severe hepatic failure and acute kidney injury on sustained low-efficiency dialysis (SLED).

We report on a patient with biliary sepsis due to Vancomycin-resistant Enterococcus faecium (VRE) treated with linezolid (LNZ), who had both hepatic failure and acute kidney injury requiring daily sustained low-efficiency dialysis (SLED), a new intermittent, prolonged diffusive modality of renal replacement therapy for ICU patients. Following cholecystostomy and peritoneal drain insertion, serum, bile and peritoneal fluid serial samples were simultaneously collected for LNZ concentration measurement (chromatography/mass spectrometry). Unusually high serum antibiotic levels (20 mg/L or more) were achieved as early as 36 hours since the start of LNZ administration, owing to relatively low hepatic clearance. Serum LNZ leveled off after commencing SLED, apparently reaching steady state levels. The lowest values of Cmin in bile was 5.86 mg/L; the average serum and bile AUC0-12 over the observation period were 204 mg/L*h and 276 mg/L*h, with a AUC0-24/MIC ratio of 227 h and 307 h, respectively. The excellent biliary pharmacodynamic exposure suggests that standard-dose LNZ might represent a valuable choice in severe biliary infection, even in the presence of hepatic failure, when the patients receive highly efficient modalities of renal replacement therapy.

[Biliary perforations caused by acute pancreatitis: considerations apropos of a case of necrosis of the intrapancreatic choledochus caused by acute cephalopancreatitis secondary to a transduodenal sphincterotomy]. / Perforazioni biliari da pancreatite acuta: considerazioni a proposito di un caso di necrosi del coledoco intrapancreatico da cefalopancreatite acuta secondaria a sfinterotomia transduodenale.

The AA. refear a case of massive necrosis of intrapancreatic biliary tract secondary to an acute necrotizing postoperative cephalopancreatitis. The high mortality lesion risk was successfully treated by many factors: surgicals and medicals. The AA. think that the wise use of Somatostatine was the most important factor.