Predictive factors of acute respiratory events during initial induction
chemotherapy in patients with advanced neuroblastoma
Abstract
Background The present study aimed to identify the predictive factors of
acute respiratory events (ARE), including severe hypoxia, during initial
induction chemotherapy in patients with newly diagnosed advanced
neuroblastoma. Method The medical records of 75 consecutive patients in
whom stage III or IV neuroblastoma was newly diagnosed between January
2003 and December 2018 at two medical institutions were retrospectively
reviewed. The outcome was ARE concomitant with severe hypoxia between
the first and 14th days of initial induction chemotherapy. Severe
hypoxia was defined as grade 3 or higher according to the Common
Terminology Criteria for Adverse Events version 4 (CTCAE v4.0) or
decreased oxygen saturation at rest (e.g., pulse oximeter <
88% or PaO2 ≤ 55 mmHg). Possible predictive factors on admission were
first screened for using univariate analyses with a P value of 0.05,
then models of the predictive power of the outcome were evaluated by
generating receiver operating characteristic (ROC) curves. Results
Eleven patients (14.7%) had the outcome, including three (4.0%) who
required respiratory support in the intensive care unit. The area under
the curve of the ROC for the predictive factors screened by univariate
analyses were 0.84 (95% confidence interval (CI): 0.73-0.95) for
lactate dehydrogenase (LDH) and 0.90 (95% CI: 0.82-0.98) for the
disseminated intravascular coagulation (DIC) score. Conclusion The LDH
value and DIC score on admission may be clinically useful predictors of
ARE during initial induction chemotherapy in patients with advanced
neuroblastoma.