title: Tumor lysis syndrome in children with non-Hodgkin lymphoma.
abstract: This study was designed to evaluate the incidence of tumor lysis syndrome (TLS) among children with non-Hodgkin lymphoma and to define whether renal involvement can be associated with higher incidence of TLS after chemotherapy. Medical charts of 59 patients were reviewed. TLS was diagnosed using laboratory and clinical criteria. Renal involvement was diagnosed based on ultrasound and CT scan findings. Laboratory TLS occurred in 7 patients (11.85%) and clinical TLS was observed in 7 patients (11.85%) as well. In 5 out of 14 TLS patients, hemodialysis was required to correct electrolyte abnormalities and TLS related death was reported overall in 3 patients. Sex, age, pretreatment LDH, and initial WBC count were not associated with higher incidence of TLS after chemotherapy, but a significant correlation was found between pretreatment renal involvement at imaging studies and development of TLS after chemotherapy (p = .027). The results indicate that despite all preventive measures, tumor lysis syndrome still occurs in children with non-Hodgkin lymphoma following chemotherapy. Patients who have evidence of renal involvement at imaging studies are more likely to develop TLS after chemotherapy.
authors.affiliation: Department of Hematology and Oncology, Mofid Children Hospital, Shahid Beheshti Medical University, Tehran, Iran. ocrt@sina.tums.ac.ir
authors.forename: Samin
authors.initials: S
authors.lastname: Alavi
authors.forename: Mohammad Taghi
authors.initials: MT
authors.lastname: Arzanian
authors.forename: Mohammad Reza
authors.initials: MR
authors.lastname: Abbasian
authors.forename: Zahra
authors.initials: Z
authors.lastname: Ashena
mesh_terms: D002648:Child; D002675:Child, Preschool; D005260:Female; D006801:Humans; D015994:Incidence; D007674:Kidney Diseases / Q000150:complications; D008228:Lymphoma, Non-Hodgkin / Q000150:complications* / Q000188:drug therapy; D008297:Male; D012189:Retrospective Studies; D012307:Risk Factors; D015275:Tumor Lysis Syndrome / Q000175:diagnosis / Q000453:epidemiology / Q000209:etiology*