scholarly journals Human herpesvirus-6 acute limbic encephalitis after unrelated umbilical cord blood transplantation successfully treated with ganciclovir

2015 ◽  
Vol 50 (10) ◽  
pp. 1385-1387 ◽  
Author(s):  
V Camus ◽  
J-P Bouwyn ◽  
A Chamseddine ◽  
P Lenain ◽  
P Ahtoy ◽  
...  
Keyword(s):  
Cord Blood ◽  
Umbilical Cord ◽  
Umbilical Cord Blood ◽  
Limbic Encephalitis ◽  
Cord Blood Transplantation ◽  
Human Herpesvirus ◽  
Umbilical Cord Blood Transplantation ◽  
Human Herpesvirus 6 ◽  
Blood Transplantation ◽  
Herpesvirus 6

scholarly journals Human Herpesvirus 6 is Associated with Status Epilepticus and Hyponatremia after Umbilical Cord Blood Transplantation

2014 ◽  
Vol 25 (3) ◽  
pp. 170-172 ◽  
Author(s):  
Fernanda Leite de Souza Franceschi ◽  
Jaime Green ◽  
Zuzan Cayci ◽  
Evan Mariash ◽  
Mustapha Ezzeddine ◽  
...  
Keyword(s):  
Status Epilepticus ◽  
Cord Blood ◽  
Antiviral Therapy ◽  
Umbilical Cord ◽  
Umbilical Cord Blood ◽  
Cord Blood Transplantation ◽  
Human Herpesvirus ◽  
Nonconvulsive Status Epilepticus ◽  
Human Herpesvirus 6 ◽  
Herpesvirus 6

Status epilepticus after allogeneic hematopoietic cell transplantation (alloHCT) is rare. The authors report a case involving a 65-year-old man with nonconvulsive status epilepticus 34 days after umbilical cord blood transplantion for chronic lymphocytic leukemia. Cerebrospinal fluid and serum were positive for human herpesvirus 6 (HHV6). Magnetic resonance imaging of the brain showed symmetric T2 hyper-intensity bilaterally in the mesial temporal lobes, and T2 hyperintensi-ties and restricted diffusion of bilateral putamina. Despite aggressive anticonvulsive therapy, his seizures only abated with initiation of ganciclovir therapy. The patient completed six weeks of combination antiviral therapy (ganciclovir and foscarnet). His cognitive function gradually improved and, after prolonged rehabilitation, the patient was discharged home with residual intermittent memory loss but otherwise functional. HHV6 should be considered in the differential diagnosis of nonconvulsive status epilepticus after alloHCT, especially in patients with hyponatremia. Empirical antiviral therapy targeting HHV6 should be administered to these patients.

HHV6-Associated Limbic Encephalitis after Reduced-Intensity Umbilical Cord Blood Transplantation.

Blood ◽  
2008 ◽  
Vol 112 (11) ◽  
pp. 2208-2208
Author(s):  
Kazuya Ishiwata ◽  
Hisashi Yamamoto ◽  
Shinsuke Takagi ◽  
Masanori Tsuji ◽  
Daisuke Kato ◽  
...  
Keyword(s):  
Cord Blood ◽  
Umbilical Cord ◽  
Umbilical Cord Blood ◽  
Peripheral Blood ◽  
Limbic Encephalitis ◽  
Cord Blood Transplantation ◽  
High Signal ◽  
Umbilical Cord Blood Transplantation ◽  
Blood Transplantation ◽  
Reduced Intensity

Abstract Background: HHV6 reactivation has been increasingly recognized in allogeneic haematopoietic stem cell transplant recipients, particularly in umbilical cord blood transplantation. In adult recipients, HHV6 has been associated with limbic encephalitis (HHV6-LE), which causes anterograde amnesia and epilepsy. The CNS disorder confined to the hippocampal regions; the presence of abnormal MRI signals involving the hippocampus, and detection of HHV6 DNA inCSF. However, the clinical features of the syndrome have not been well characterized. Methods: In this study we retrospectively reviewed the medical records of 139 umbilical cord blood transplantation recipients with reduced-intensity conditioning between January 2006 and December 2007 at Toranomon Hospital in Japan to determine the incidence of HHV6-LE among these patients. The diagnosis was based on the acute development of retrograde amnesia, confusion, coma and seizures accompanied by charascteristic MRI findings of abnormal high signal intensity on flair and T2 weighted images in the hippocampus and mesial temporal lobes, and the detection of HHV6 DNA in CSF. Eighty-six were received foscarnet before the onset of HHV6-LE as prophylaxis. All the patients who manifested suspicious symptoms of HHV6-LE were treated with foscarnet. Results: HHV6-LE was diagnosed in 11/139 for a cumulative incidence of 7.2%. The median age was 49 years (range 36–82), 3 were female. Diseases treated were AML/MDS (8), ALL (1), diffuse large B-cell lymphoma (1), and aplastic anemia (1). All 11 were conditioned with fludarabine-based reduced-intensity regimen, and tacrolimus alone (5) or tacrolimus+mycophenolate mofetil (6) were used as GVHD prophylaxis. Five of them had started foscarnet before the onset of HHV6-LE as a prophylaxis. Median symptom onset was on day +20 (range, 12–50). Initial symptoms included confusion in 9, retrograde amnesia in 8, and seizures in 5. MRI demonstrated hyppocampal and mesial temporal lobe FLAIR/T2 high signal intensity in 8/11. Initial CSF analysis demonstrated a median WBC count was 7 (range, 1–21)/μl, median protein was 49 (range, 44–337) mg/dl, median glucose was 107 (range, 62–269) mg/dl. No positive results of bacterial or viral cultures were observed in any of the patients. Median HHV6 DNA levels in the CSF was 20000 (range, 200–80000) copies/ml. Median HHV6 DNA levels in peripheral blood was 200 (range, 0–300000) copies/ml. Remarkably, 7 patients were negative for HHV6 in peripheral blood even within 6 days prior to the onset of CNS symptoms. All were treated with foscarnet at 50–100mg/kg of body weight, and clinical symptoms improved in 9 evaluable patients (2 were not evaluable due to severe pulmonary complications). The virus was cleared in the CSF successfully in 7 patients evaluated. Seven died with the median survival of 32 days (range, 7–346) from diagnosis of limbic encephalitis. HHV6-LE was not a direct cause of death in any of them (2 were from infection, 2 from IP, 2 from relapse, and 1 from MOF). Four were alive as of July 31, 2008, and what is of extreme interest is that all were those who received foscarnet as a prophylaxis. None of the factors analysed failed to reach statistical significance regarding the impact on the onset of HHV6-LE. Conclusions: High incidence of HHV6-LE as well as reactivation of the virus was observed in CB recipients. HHV6 DNA monitoring in peripheral blood may not be sufficient to predict the development of HHV6-LE. Although clinical manifestations were severe in some cases, foscarnet therapy was effective in all evaluable cases. Possible positive impact of prophylactic foscarnet therapy on better survival was suggested, which needs further evaluation by prospective study.

Intrabone infusion for allogeneic umbilical cord blood transplantation in children

2021 ◽  
Author(s):  
Stephanie Vairy ◽  
Isabelle Louis ◽  
Marie-France Vachon ◽  
Johanne Richer ◽  
Pierre Teira ◽  
...  
Keyword(s):  
Cord Blood ◽  
Umbilical Cord ◽  
Umbilical Cord Blood ◽  
Cord Blood Transplantation ◽  
Umbilical Cord Blood Transplantation ◽  
Blood Transplantation
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