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Butano VW, Phillips MC, Wells AB, Strand MS, McKillop IH, Baker EH, Martinie JB, Iannitti DA. Analysis of technical failure after 1,613 surgical microwave ablations: A propensity score-matched analysis. Surgery 2024; 176:775-784. [PMID: 38971698 DOI: 10.1016/j.surg.2024.05.041] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2024] [Revised: 04/29/2024] [Accepted: 05/19/2024] [Indexed: 07/08/2024]
Abstract
BACKGROUND Microwave ablation is becoming increasingly common for the treatment of liver tumors. Despite numerous studies aimed at identifying risk factors for local recurrence after microwave ablation, a consensus on modifiable risk factors for failure remains elusive, partly because of the limited statistical power of these studies. This study investigated the incidence of technical failure after microwave ablation, encompassing both incomplete ablation and local recurrence, and aimed to identify modifiable factors that reduce technical failure. METHODS This retrospective review included patients who underwent surgical microwave ablation at a high-volume institution between October 2006 and March 2023. Univariate analysis, multivariate analysis, and propensity score matching were performed to identify risk factors for technical failure. RESULTS A total of 1,613 surgical microwave ablations were performed on 3,035 tumors, with 226 instances (14% per procedure, 7.4% per tumor) of technical failure. Incomplete ablation occurred at a rate of 1.7% per tumor, whereas local recurrence was identified in 6.5% of ablations in per-tumor analysis. Body mass index >25 was significant for failure (odds ratio, 1.50; 95% confidence interval, 1.07-2.11; P < .05), suggesting that more difficult targeting may lead to increased technical failure rates. African American race (odds ratio, 1.62; 95% confidence interval, 1.16-2.27; P < .05), pre-microwave ablation transarterial chemoembolization (odds ratio, 1.54; 95% confidence interval, 1.08-2.21; P < .05), and previous ablation (odds ratio, 1.58; 95% confidence interval, 1.09-2.29; P < .05) were found to be statistically significant. CONCLUSION On the basis of the largest microwave ablation database available to date, this study identified novel modifiable and nonmodifiable risk factors of microwave ablation failure. These results can lead to decreasing technical failure rates after microwave ablation.
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Affiliation(s)
- Vincent W Butano
- Division of HPB Surgery, Department of Surgery, Atrium Health Carolinas Medical Center, Charlotte, NC
| | - Michael C Phillips
- Division of HPB Surgery, Department of Surgery, Atrium Health Carolinas Medical Center, Charlotte, NC
| | - Alexandra B Wells
- Division of HPB Surgery, Department of Surgery, Atrium Health Carolinas Medical Center, Charlotte, NC
| | - Matthew S Strand
- Division of HPB Surgery, Department of Surgery, Atrium Health Carolinas Medical Center, Charlotte, NC
| | - Iain H McKillop
- Division of HPB Surgery, Department of Surgery, Atrium Health Carolinas Medical Center, Charlotte, NC
| | - Erin H Baker
- Division of HPB Surgery, Department of Surgery, Atrium Health Carolinas Medical Center, Charlotte, NC
| | - John B Martinie
- Division of HPB Surgery, Department of Surgery, Atrium Health Carolinas Medical Center, Charlotte, NC
| | - David A Iannitti
- Division of HPB Surgery, Department of Surgery, Atrium Health Carolinas Medical Center, Charlotte, NC.
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Klubien J, Knøfler LA, Larsen PN, Nielsen SD, Fukumori D, Hillingsø JG, Tschuor C, Pommergaard HC. Laparoscopic ablation for liver malignancies: initial experience at a Scandinavian high volume HPB center. Surg Endosc 2024:10.1007/s00464-024-11125-x. [PMID: 39145873 DOI: 10.1007/s00464-024-11125-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2024] [Accepted: 07/27/2024] [Indexed: 08/16/2024]
Abstract
BACKGROUND Ablation is an effective, parenchymal-sparing treatment for primary liver cancer and liver metastases. The purpose of this study was to report our initial experience with laparoscopic microwave ablation regarding postoperative complications, rate of conversions to open procedure, and technical efficacy. METHODS This was a quality improvement project carried out at a tertiary care center in Denmark. Patients ≥ 18 years old with liver malignancies, not available for percutaneous ablation, and treated with ultrasound-guided laparoscopic ablation were included. RESULTS From March 2023 to December 2023, 39 patients were referred for laparoscopic ablation after a multidisciplinary team conference. Of these, two procedures were converted to open procedures due to adhesion and tumor progression. Three patients rejected the sharing of medical information, two procedures were canceled and in one case the strategy was changed perioperatively. Therefore, 32 procedures in 31 patients were available for analysis. Complete ablation was evaluated after 1 month and was achieved in 100% of the procedures. None of the patients died, and no complications were reported in 21 cases (65.6%). Most patients with complications had a grade 1 complication based on the Clavien-Dindo classification, which among others included abdominal and shoulder pain, atrial fibrillation, and subcutaneous hematoma. Two patients had a complication grade 2 (wound infection and decompensated cirrhosis) and one had a grade 4b (sepsis due to pneumonia and urinary tract infection). The median Comprehensive Complication Index was 12.2 (interquartile range 8.7-24.2). Furthermore, univariable logistic regression showed that ≥ 2 tumors treated were associated with a higher risk of complications (odds ratio 6.37, 95% confidence interval [1.20;33.85], p-value = 0.0297). CONCLUSION Ultrasound-guided laparoscopic microwave ablation of liver malignancies is feasible and safe with little risk for complications, a high technical efficacy, and a low rate of conversions to open procedures.
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Affiliation(s)
- Jeanett Klubien
- Department of Surgery and Transplantation, Rigshospitalet, Copenhagen University Hospital, Inge Lehmanns Vej 7, 2100, Copenhagen, Denmark
- Hepatic Malignancy Surgical Research Unit (HEPSURU), Department of Surgery and Transplantation, Rigshospitalet, Copenhagen University Hospital, Inge Lehmanns Vej 7, 2100, Copenhagen, Denmark
| | - Lucas Alexander Knøfler
- Department of Surgery and Transplantation, Rigshospitalet, Copenhagen University Hospital, Inge Lehmanns Vej 7, 2100, Copenhagen, Denmark
- Hepatic Malignancy Surgical Research Unit (HEPSURU), Department of Surgery and Transplantation, Rigshospitalet, Copenhagen University Hospital, Inge Lehmanns Vej 7, 2100, Copenhagen, Denmark
| | - Peter Nørgaard Larsen
- Department of Surgery and Transplantation, Rigshospitalet, Copenhagen University Hospital, Inge Lehmanns Vej 7, 2100, Copenhagen, Denmark
| | - Susanne Dam Nielsen
- Department of Surgery and Transplantation, Rigshospitalet, Copenhagen University Hospital, Inge Lehmanns Vej 7, 2100, Copenhagen, Denmark
- Department of Infectious Diseases, Rigshospitalet, Copenhagen University Hospital, Esther Møllers Vej 6, 2100, Copenhagen, Denmark
- Institute for Clinical Medicine, Panum Institute, University of Copenhagen, Blegdamsvej 3B, 2200, Copenhagen, Denmark
| | - Daisuke Fukumori
- Department of Surgery and Transplantation, Rigshospitalet, Copenhagen University Hospital, Inge Lehmanns Vej 7, 2100, Copenhagen, Denmark
| | - Jens Georg Hillingsø
- Department of Surgery and Transplantation, Rigshospitalet, Copenhagen University Hospital, Inge Lehmanns Vej 7, 2100, Copenhagen, Denmark
| | - Christoph Tschuor
- Department of Surgery and Transplantation, Rigshospitalet, Copenhagen University Hospital, Inge Lehmanns Vej 7, 2100, Copenhagen, Denmark
- Institute for Clinical Medicine, Panum Institute, University of Copenhagen, Blegdamsvej 3B, 2200, Copenhagen, Denmark
| | - Hans-Christian Pommergaard
- Department of Surgery and Transplantation, Rigshospitalet, Copenhagen University Hospital, Inge Lehmanns Vej 7, 2100, Copenhagen, Denmark.
- Hepatic Malignancy Surgical Research Unit (HEPSURU), Department of Surgery and Transplantation, Rigshospitalet, Copenhagen University Hospital, Inge Lehmanns Vej 7, 2100, Copenhagen, Denmark.
- Institute for Clinical Medicine, Panum Institute, University of Copenhagen, Blegdamsvej 3B, 2200, Copenhagen, Denmark.
- Department of Surgery and Transplantation, Rigshospitalet, University of Copenhagen, Inge Lehmanns Vej 7, 2100, Copenhagen Ø, Denmark.
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Ricker AB, Baker EH, Strand MS, Kalabin A, Butano V, Wells A, Phillips M, Wang H, McKillop I, Iannitti G, Casingal J, Martinie JB, Vrochides D, Iannitti DA. Surgical microwave ablation for the treatment of hepatocellular carcinoma in 791 operations. HPB (Oxford) 2024; 26:379-388. [PMID: 38102029 DOI: 10.1016/j.hpb.2023.11.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/12/2023] [Revised: 11/03/2023] [Accepted: 11/17/2023] [Indexed: 12/17/2023]
Abstract
INTRODUCTION Hepatocellular carcinoma (HCC) is a leading cause of cancer-related mortality and often arises in the setting of cirrhosis. The present series reviews outcomes following 791 operations. METHODS Retrospective review surgical MWA for HCC from March 2007 through December 2022 at a high-volume institution was performed using a prospective database. Primary outcome was overall survival. RESULTS A total of 791 operations in 623 patients and 1156 HCC tumors were treated with surgical MWA. Median tumor size was 2 cm (range 0.25-10 cm) with an average of 1 tumor ablated per operation (range 1-7 tumors). Nearly 90 % of patients had cirrhosis with a median MELD score of 8 (IQR = 6-11). Mortality within 30 days occurred in 13 patients (1.6 %). Per tumor, the rate of incomplete ablation was 2.25 % and local recurrence was 2.95 %. Previous ablation and tumor size were risk factors for recurrence. One-year overall survival was 82.0 % with a median overall survival of 36.5 months (95 % CI 15.7-93.7) and median disease-free survival of 15.9 months (range 5.7-37.3 months). CONCLUSION Surgical MWA offers a low-morbidity approach for treatment of HCC, affording low rates of incomplete ablation and local recurrence.
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Affiliation(s)
- Ansley B Ricker
- Division of HPB Surgery, Department of Surgery, Atrium Health Carolinas Medical Center, Charlotte, NC, USA
| | - Erin H Baker
- Division of HPB Surgery, Department of Surgery, Atrium Health Carolinas Medical Center, Charlotte, NC, USA
| | - Matthew S Strand
- Division of HPB Surgery, Department of Surgery, Atrium Health Carolinas Medical Center, Charlotte, NC, USA
| | - Aleksandr Kalabin
- Division of HPB Surgery, Department of Surgery, Atrium Health Carolinas Medical Center, Charlotte, NC, USA
| | - Vincent Butano
- Division of HPB Surgery, Department of Surgery, Atrium Health Carolinas Medical Center, Charlotte, NC, USA
| | - Alexandra Wells
- Division of HPB Surgery, Department of Surgery, Atrium Health Carolinas Medical Center, Charlotte, NC, USA
| | - Michael Phillips
- Division of HPB Surgery, Department of Surgery, Atrium Health Carolinas Medical Center, Charlotte, NC, USA
| | - Huaping Wang
- Carolinas Center for Surgical Outcomes Science, Atrium Health, Charlotte, NC, USA
| | - Iain McKillop
- Division of HPB Surgery, Department of Surgery, Atrium Health Carolinas Medical Center, Charlotte, NC, USA
| | - Giuliana Iannitti
- Division of HPB Surgery, Department of Surgery, Atrium Health Carolinas Medical Center, Charlotte, NC, USA
| | - Joel Casingal
- Division of HPB Surgery, Department of Surgery, Atrium Health Carolinas Medical Center, Charlotte, NC, USA
| | - John B Martinie
- Division of HPB Surgery, Department of Surgery, Atrium Health Carolinas Medical Center, Charlotte, NC, USA
| | - Dionisios Vrochides
- Division of HPB Surgery, Department of Surgery, Atrium Health Carolinas Medical Center, Charlotte, NC, USA
| | - David A Iannitti
- Division of HPB Surgery, Department of Surgery, Atrium Health Carolinas Medical Center, Charlotte, NC, USA.
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