Contraindications and image-defined risk factors in laparoscopic resection of abdominal neuroblastoma
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Minimally invasive surgery (MIS) has become widely accepted as a technique for abdominal neuroblastoma resection. However, the indications for MIS are still controversial. The aim of this study was to evaluate image-defined risk factors (IDRFs), complications, and oncologic outcomes in patients with abdominal neuroblastomas treated with MIS.
Between August 1998 and February 2016, MIS was planned for 20 children with abdominal neuroblastomas. Clinical data were retrospectively reviewed and compared between the IDRF-negative and IDRF-positive patients.
On the basis of the latest IDRF guidelines, five patients were classified as IDRF-positive and four of them had operative complications; namely, partial infarction of the ipsilateral kidney or open conversion. Concerning the two patients who needed open conversion, the primary reason for open conversion was difficulty in dissection of the tumor from the vena cava. Preoperative images of these cases showed either deformation or subtotal encasement of the vena cava. Relapse occurred in three high-risk patients and in none of the low/intermediate-risk patients. No complication occurred in the IDRF-negative cases.
IDRF-negative might be a good indication for MIS for abdominal neuroblastoma. However, deformation or subtotal encasement of the vena cava should be considered as IDRF-positive for MIS.
KeywordsLaparoscopy Neuroblastoma IDRF Vena cava
Compliance with ethical considerations
Conflict of interest
No competing financial interests exist.
All procedures performed in studies involving human participants were in accordance with the ethical standards of the institutional and/or national research committee and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards.
Informed consent was obtained from all individual participants included in the study.
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