Ultrasound-guided microwave ablation for abdominal wall metastatic tumors: A preliminary study
Autor: | Zhiyu Han, Ping Liang, Zhi-Gang Cheng, Cai Qi, Xiaoling Yu, Jie Yu, Fangyi Liu |
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Rok vydání: | 2012 |
Předmět: |
Ablation Techniques
Adult Male medicine.medical_specialty Brief Article Abdominal wall Carcinoma Humans Medicine Thermal Ablation Therapy Microwaves Ultrasonography Interventional Aged Retrospective Studies business.industry Abdominal Wall Microwave ablation Gastroenterology General Medicine Middle Aged medicine.disease Ultrasound guided Surgery medicine.anatomical_structure Female Radiology Ultrasonography business |
Zdroj: | World Journal of Gastroenterology. 18:3008 |
ISSN: | 1007-9327 |
Popis: | To evaluate the feasibility, safety and efficacy of ultrasound-guided microwave (MW) ablation for abdominal wall metastatic tumors.From August 2007 to December 2010, a total of 11 patients with 23 abdominal wall nodules (diameter 2.59 cm ± 1.11 cm, range 1.3 cm to 5.0 cm) were treated with MW ablation. One antenna was inserted into the center of tumors less than 1.7 cm, and multiple antennae were inserted simultaneously into tumors 1.7 cm or larger. A 21 gauge thermocouple was inserted near important organs which required protection (such as bowel or gallbladder) for real-time temperature monitoring during MW ablation. Treatment outcome was observed by contrast-enhanced ultrasound and magnetic resonance imaging (MRI) [or computed tomography (CT)] during follow-up.MW ablation was well tolerated by all patients. Six patients with 11 nodules had 1 thermocouple inserted near important organs for real-time temperature monitoring and the maximum temperature was 56 °C. Major complications included mild pain (54.5%), post-ablation fever (100%) and abdominal wall edema (25%). All 23 tumors (100%) in this group were completely ablated, and no residual tumor or local recurrence was observed at a median follow-up of 13 mo (range 1 to 32 mo). The ablation zone was well defined on contrast-enhanced imaging (contrast-enhanced CT, MRI and/or contrast-enhanced ultrasound) and gradually shrank with time.Ultrasound-guided MW ablation may be a feasible, safe and effective treatment for abdominal wall metastatic tumors in selected patients. |
Databáze: | OpenAIRE |
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