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World Journal of Surgical Oncology

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Open Access 01-12-2016 | Research

Preliminary results of ultrasound-guided laser ablation for unresectable metastases to retroperitoneal and hepatic portal lymph nodes

Authors: Yun Mou, Qiyu Zhao, Liyun Zhong, Fen Chen, Tianan Jiang

Published in: World Journal of Surgical Oncology | Issue 1/2016

Abstract

Background

Laser ablation with a neodymium-doped yttrium aluminum garnet (Nd:YAG) laser is a minimally invasive approach which is able to achieve a precise tissue necrosis. The study was aimed to assess the feasibility and efficiency of laser ablation in the treatment of retroperitoneal and hepatic portal unresectable metastatic lymph nodes.

Methods

Eight patients including 11 pathologically proven metastatic lymph nodes, 4 in retroperitoneal, 7 in hepatic portal region, were treated by laser ablation. Primary cancers were cholangiocarcinoma (n = 4) and hepatocellular carcinoma (n = 4). Under sonographic guidance, the laser ablation was performed percutaneously. Follow-up contrast computed tomography or magnetic resonance image was performed.

Results

The treatments were completed in single process in all the patients. No severe complications occurred. Follow-up contrast computed tomography or magnetic resonance imaging at 1 and 3 months showed partial responses in 11 lymph nodes. The local response rate at the 6 month follow-up was 75.0 %. The overall response rate was 62.5 %. Abdominal pain scores decreased significantly in all patients. Tumor marker levels decreased in six patients. The Child-Pugh grade did not change.

Conclusions

The results suggest that sonographically guided laser ablation is technically feasible for the local treatment of unresectable retroperitoneal and hepatic portal lymph nodes from hepatic cancer. Although further study is needed to evaluate its long time efficacy, abdominal pain relief is prominent.

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Title: Preliminary results of ultrasound-guided laser ablation for unresectable metastases to retroperitoneal and hepatic portal lymph nodes
Authors: Yun Mou
Qiyu Zhao
Liyun Zhong
Fen Chen
Tianan Jiang
Publication date: 01-12-2016
Publisher: BioMed Central
Published in: World Journal of Surgical Oncology / Issue 1/2016
Electronic ISSN: 1477-7819
DOI: https://doi.org/10.1186/s12957-016-0917-2

At a glance: The STEP trials

Springer Medicine

Preliminary results of ultrasound-guided laser ablation for unresectable metastases to retroperitoneal and hepatic portal lymph nodes

Abstract

Background

Methods

Results

Conclusions

At a glance: The STEP trials

Springer Medicine

Abstract

Background

Methods

Results

Conclusions

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