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Rossebo AE, Zlevor AM, Knott EA, Mao L, Couillard AB, Ziemlewicz TJ, Hinshaw JL, Abel EJ, Lubner MG, Knavel Koepsel EM, Wells SA, Stratchko LM, Laeseke PF, Lee FT. Percutaneous Microwave Ablation for Treatment of Retroperitoneal Tumors. Radiol Imaging Cancer 2024; 6:e230080. [PMID: 38334471 PMCID: PMC10988338 DOI: 10.1148/rycan.230080] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2023] [Revised: 11/05/2023] [Accepted: 12/15/2023] [Indexed: 02/10/2024]
Abstract
Purpose To determine if microwave ablation (MWA) of retroperitoneal tumors can safely provide high rates of local tumor control. Materials and Methods This retrospective study included 19 patients (median age, 65 years [range = 46-78 years]; 13 [68.4%] men and six [31.6%] women) with 29 retroperitoneal tumors treated over 22 MWA procedures. Hydrodissection (0.9% saline with 2% iohexol) was injected in 17 of 22 (77.3%) procedures to protect nontarget anatomy. The primary outcomes evaluated were local tumor progression (LTP) and complication rates. Oncologic outcomes, including overall survival (OS), progression-free survival (PFS), and treatment-free interval (TFI), were examined as secondary outcome measures. Results Median follow-up was 18 months (range = 0.5-113). Hydrodissection was successful in displacing nontarget anatomy in 16 of 17 (94.1%) procedures. The LTP rate was 3.4% (one of 29; 95% CI: 0.1, 17.8) per tumor and 5.3% (one of 19; 95% CI: 0.1, 26.0) per patient. The overall complication rate per patient was 15.8% (three of 19), including two minor complications and one major complication. The OS rate at 1, 2, and 3 years was 81.8%, 81.8%, and 72.7%, respectively, with a median OS estimated at greater than 7 years. There was no evidence of a difference in OS (P = .34) and PFS (P = .56) between patients with renal cell carcinoma (six of 19 [31.6%]) versus other tumors (13 of 19 [68.4%]) and patients treated with no evidence of disease (15 of 22 [68.2%]) versus patients with residual tumors (seven of 22 [31.8%]). Median TFI was 18 months (range = 0.5-108). Conclusion Treatment of retroperitoneal tumors with MWA combined with hydrodissection provided high rates of local control, prolonged systemic therapy-free intervals, and few serious complications. Keywords: Ablation Techniques (ie, Radiofrequency, Thermal, Chemical), Retroperitoneum, Microwave Ablation, Hydrodissection © RSNA, 2024.
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Affiliation(s)
- Annika E. Rossebo
- From the Departments of Radiology (A.E.R., A.M.Z., A.B.C., T.J.Z.,
J.L.H., E.J.A., M.G.L., E.M.K.K., S.A.W., L.M.S., P.F.L., F.T.L.), Biomedical
Engineering (A.E.R., F.T.L.), Biostatistics and Medical Informatics (L.M.), and
Urology (J.L.H., E.J.A., F.T.L.), University of Wisconsin–Madison School
of Medicine and Public Health, 600 Highland Ave, E3/378 Clinical Science Center,
Madison, WI 53792-3252; and Cleveland Clinic Lerner College of Medicine,
Cleveland, Ohio (E.A.K.)
| | - Annie M. Zlevor
- From the Departments of Radiology (A.E.R., A.M.Z., A.B.C., T.J.Z.,
J.L.H., E.J.A., M.G.L., E.M.K.K., S.A.W., L.M.S., P.F.L., F.T.L.), Biomedical
Engineering (A.E.R., F.T.L.), Biostatistics and Medical Informatics (L.M.), and
Urology (J.L.H., E.J.A., F.T.L.), University of Wisconsin–Madison School
of Medicine and Public Health, 600 Highland Ave, E3/378 Clinical Science Center,
Madison, WI 53792-3252; and Cleveland Clinic Lerner College of Medicine,
Cleveland, Ohio (E.A.K.)
| | - Emily A. Knott
- From the Departments of Radiology (A.E.R., A.M.Z., A.B.C., T.J.Z.,
J.L.H., E.J.A., M.G.L., E.M.K.K., S.A.W., L.M.S., P.F.L., F.T.L.), Biomedical
Engineering (A.E.R., F.T.L.), Biostatistics and Medical Informatics (L.M.), and
Urology (J.L.H., E.J.A., F.T.L.), University of Wisconsin–Madison School
of Medicine and Public Health, 600 Highland Ave, E3/378 Clinical Science Center,
Madison, WI 53792-3252; and Cleveland Clinic Lerner College of Medicine,
Cleveland, Ohio (E.A.K.)
| | - Lu Mao
- From the Departments of Radiology (A.E.R., A.M.Z., A.B.C., T.J.Z.,
J.L.H., E.J.A., M.G.L., E.M.K.K., S.A.W., L.M.S., P.F.L., F.T.L.), Biomedical
Engineering (A.E.R., F.T.L.), Biostatistics and Medical Informatics (L.M.), and
Urology (J.L.H., E.J.A., F.T.L.), University of Wisconsin–Madison School
of Medicine and Public Health, 600 Highland Ave, E3/378 Clinical Science Center,
Madison, WI 53792-3252; and Cleveland Clinic Lerner College of Medicine,
Cleveland, Ohio (E.A.K.)
| | - Allison B. Couillard
- From the Departments of Radiology (A.E.R., A.M.Z., A.B.C., T.J.Z.,
J.L.H., E.J.A., M.G.L., E.M.K.K., S.A.W., L.M.S., P.F.L., F.T.L.), Biomedical
Engineering (A.E.R., F.T.L.), Biostatistics and Medical Informatics (L.M.), and
Urology (J.L.H., E.J.A., F.T.L.), University of Wisconsin–Madison School
of Medicine and Public Health, 600 Highland Ave, E3/378 Clinical Science Center,
Madison, WI 53792-3252; and Cleveland Clinic Lerner College of Medicine,
Cleveland, Ohio (E.A.K.)
| | - Timothy J. Ziemlewicz
- From the Departments of Radiology (A.E.R., A.M.Z., A.B.C., T.J.Z.,
J.L.H., E.J.A., M.G.L., E.M.K.K., S.A.W., L.M.S., P.F.L., F.T.L.), Biomedical
Engineering (A.E.R., F.T.L.), Biostatistics and Medical Informatics (L.M.), and
Urology (J.L.H., E.J.A., F.T.L.), University of Wisconsin–Madison School
of Medicine and Public Health, 600 Highland Ave, E3/378 Clinical Science Center,
Madison, WI 53792-3252; and Cleveland Clinic Lerner College of Medicine,
Cleveland, Ohio (E.A.K.)
| | - J. Louis Hinshaw
- From the Departments of Radiology (A.E.R., A.M.Z., A.B.C., T.J.Z.,
J.L.H., E.J.A., M.G.L., E.M.K.K., S.A.W., L.M.S., P.F.L., F.T.L.), Biomedical
Engineering (A.E.R., F.T.L.), Biostatistics and Medical Informatics (L.M.), and
Urology (J.L.H., E.J.A., F.T.L.), University of Wisconsin–Madison School
of Medicine and Public Health, 600 Highland Ave, E3/378 Clinical Science Center,
Madison, WI 53792-3252; and Cleveland Clinic Lerner College of Medicine,
Cleveland, Ohio (E.A.K.)
| | - E. Jason Abel
- From the Departments of Radiology (A.E.R., A.M.Z., A.B.C., T.J.Z.,
J.L.H., E.J.A., M.G.L., E.M.K.K., S.A.W., L.M.S., P.F.L., F.T.L.), Biomedical
Engineering (A.E.R., F.T.L.), Biostatistics and Medical Informatics (L.M.), and
Urology (J.L.H., E.J.A., F.T.L.), University of Wisconsin–Madison School
of Medicine and Public Health, 600 Highland Ave, E3/378 Clinical Science Center,
Madison, WI 53792-3252; and Cleveland Clinic Lerner College of Medicine,
Cleveland, Ohio (E.A.K.)
| | - Meghan G. Lubner
- From the Departments of Radiology (A.E.R., A.M.Z., A.B.C., T.J.Z.,
J.L.H., E.J.A., M.G.L., E.M.K.K., S.A.W., L.M.S., P.F.L., F.T.L.), Biomedical
Engineering (A.E.R., F.T.L.), Biostatistics and Medical Informatics (L.M.), and
Urology (J.L.H., E.J.A., F.T.L.), University of Wisconsin–Madison School
of Medicine and Public Health, 600 Highland Ave, E3/378 Clinical Science Center,
Madison, WI 53792-3252; and Cleveland Clinic Lerner College of Medicine,
Cleveland, Ohio (E.A.K.)
| | - Erica M. Knavel Koepsel
- From the Departments of Radiology (A.E.R., A.M.Z., A.B.C., T.J.Z.,
J.L.H., E.J.A., M.G.L., E.M.K.K., S.A.W., L.M.S., P.F.L., F.T.L.), Biomedical
Engineering (A.E.R., F.T.L.), Biostatistics and Medical Informatics (L.M.), and
Urology (J.L.H., E.J.A., F.T.L.), University of Wisconsin–Madison School
of Medicine and Public Health, 600 Highland Ave, E3/378 Clinical Science Center,
Madison, WI 53792-3252; and Cleveland Clinic Lerner College of Medicine,
Cleveland, Ohio (E.A.K.)
| | - Shane A. Wells
- From the Departments of Radiology (A.E.R., A.M.Z., A.B.C., T.J.Z.,
J.L.H., E.J.A., M.G.L., E.M.K.K., S.A.W., L.M.S., P.F.L., F.T.L.), Biomedical
Engineering (A.E.R., F.T.L.), Biostatistics and Medical Informatics (L.M.), and
Urology (J.L.H., E.J.A., F.T.L.), University of Wisconsin–Madison School
of Medicine and Public Health, 600 Highland Ave, E3/378 Clinical Science Center,
Madison, WI 53792-3252; and Cleveland Clinic Lerner College of Medicine,
Cleveland, Ohio (E.A.K.)
| | - Lindsay M. Stratchko
- From the Departments of Radiology (A.E.R., A.M.Z., A.B.C., T.J.Z.,
J.L.H., E.J.A., M.G.L., E.M.K.K., S.A.W., L.M.S., P.F.L., F.T.L.), Biomedical
Engineering (A.E.R., F.T.L.), Biostatistics and Medical Informatics (L.M.), and
Urology (J.L.H., E.J.A., F.T.L.), University of Wisconsin–Madison School
of Medicine and Public Health, 600 Highland Ave, E3/378 Clinical Science Center,
Madison, WI 53792-3252; and Cleveland Clinic Lerner College of Medicine,
Cleveland, Ohio (E.A.K.)
| | - Paul F. Laeseke
- From the Departments of Radiology (A.E.R., A.M.Z., A.B.C., T.J.Z.,
J.L.H., E.J.A., M.G.L., E.M.K.K., S.A.W., L.M.S., P.F.L., F.T.L.), Biomedical
Engineering (A.E.R., F.T.L.), Biostatistics and Medical Informatics (L.M.), and
Urology (J.L.H., E.J.A., F.T.L.), University of Wisconsin–Madison School
of Medicine and Public Health, 600 Highland Ave, E3/378 Clinical Science Center,
Madison, WI 53792-3252; and Cleveland Clinic Lerner College of Medicine,
Cleveland, Ohio (E.A.K.)
| | - Fred T. Lee
- From the Departments of Radiology (A.E.R., A.M.Z., A.B.C., T.J.Z.,
J.L.H., E.J.A., M.G.L., E.M.K.K., S.A.W., L.M.S., P.F.L., F.T.L.), Biomedical
Engineering (A.E.R., F.T.L.), Biostatistics and Medical Informatics (L.M.), and
Urology (J.L.H., E.J.A., F.T.L.), University of Wisconsin–Madison School
of Medicine and Public Health, 600 Highland Ave, E3/378 Clinical Science Center,
Madison, WI 53792-3252; and Cleveland Clinic Lerner College of Medicine,
Cleveland, Ohio (E.A.K.)
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