Preoperative Identification of Adamkiewicz Artery in Pediatric Posterior Thoracic Tumors: Fact or Fiction? A Systematic Review from the International Society of Pediatric Surgical Oncology (IPSO)

Background and aims

We aimed to review current literature on the impact of Preoperative Identification (POI) of the Adamkiewicz Artery (AKA) in solid pediatric Posterior Thoracic Tumors (PTT), comprising a spectrum of neuroblastic tumors and neuroblastoma, with particular focus on Complete Macroscopic Excision (CME) and Neurologic Complications/Sequelae (NCS).

Methods

A systematic review in accordance with PRISMA guidelines was undertaken. The study included reports on pediatric patients providing available data on POI of the AKA in PTT.

Results

Among 838 records screened, 33 full-texts underwent evaluation, and 8 papers were included. Among 49 tumors (N = 49 patients), 30 were neuroectodermic tumors. Spinal angiography (SA) was undertaken in four studies for 32 (65%) patients. No SA-related morbidity was recorded. Otherwise, a combination of CT and/or MRI imaging was described. The lack of detailed reporting on CT/MRI imaging, hindered a feasible detailed comparative analysis among non-SA imaging modality techniques.

The overall success rate of AKA POI was 65%, 71% with SA and 33% with non-SA studies. CME was achieved in 73% of SA and 80% non-SA groups. Overall, 5 children experienced NCS, 60% of those who had dumbbell tumors. All NCS occurred in patients without successful POI of the AKA. Furthermore, no SA patient had NCS, while 33% of the non-SA sustained NCS.

Conclusions

Successful POI of the AKA may play a key role in prevention of NCS. SA showed the utility of deploying POI, without added morbidity. Furthermore, SA appeared to have a preventive impact on NCS. SA may have a key role on CME which may also be operator dependent.