Radiofrequency Ablation for Unresectable Tumors of the Liver

2008 ◽  
Vol 74 (7) ◽  
pp. 594-601 ◽  
Author(s):  
J. Harrison Howard ◽  
Ching-Wei D. Tzeng ◽  
J. Kevin Smith ◽  
Devon E. Eckhoff ◽  
J. Steve Bynon ◽  
...  
Keyword(s):  
Colorectal Cancer ◽  
Radiofrequency Ablation ◽  
Local Recurrence ◽  
Effective Control ◽  
Hepatic Tumors ◽  
Recurrence Rates ◽  
Metastatic Tumors ◽  
Long Term Treatment ◽  
Tumors Of The Liver

Surgical resection of primary or metastatic tumors of the liver offers patients the best long-term survival. Liver resections may not be appropriate in patients with bilobar metastases, liver dysfunction, or severe comorbidities. Radiofrequency ablation (RFA) is a technique used to destroy unresectable hepatic tumors through thermocoagulation. We retrospectively reviewed a consecutive series of patients undergoing RFA with unresectable hepatic tumors for local recurrence and overall survival. Under an Institutional Review Board-approved protocol, all patients treated with RFA at the University of Alabama at Birmingham from September 1, 1998, to June 15, 2005, were identified. During this time period, 189 lesions in 107 patients were treated with RFA. Patients’ charts were retrospectively reviewed. Data is presented as mean ± SEM. Significance is defined as P < 0.05. Patient demographics revealed 62 per cent males and 38 per cent females with a mean age of 59 (±1) years. Hepatocellular carcinoma (HCC) represented 54 per cent of the tumors treated. Metastatic colorectal cancer represented 22 per cent and the remaining 24 per cent were other metastatic tumors. Overall recurrence rates for all tumors after RFA was 53 per cent. Local recurrence rates for HCC, colorectal cancer, and other metastatic lesions were 27.6 per cent, 29.1 per cent, and 52 per cent, respectively. The morbidity rate for the procedure was 11 per cent. There was one mortality (0.9%) related to RFA. Laparoscopic RFA for HCC in Childs-Pugh Class C cirrhotics (n = 6) resulted in 50 per cent of patients being transplanted with no evidence of disease at a mean follow-up period of 14 months. RFA is a safe and effective way for treating HCC and other unresectable tumors in the liver that are not eligible for hepatic resection. More effective control of systemic recurrence will dictate survival in the majority of patients with metastatic cancers. Local ablation for HCC in cirrhotic patients may be an effective bridge to transplantation. Liver transplantation may still be the most effective long-term treatment for localized HCC.

scholarly journals Software-based planning of ultrasound and CT-guided percutaneous radiofrequency ablation in hepatic tumors

2021 ◽  
Author(s):  
M. J. van Amerongen ◽  
P. Mariappan ◽  
P. Voglreiter ◽  
R. Flanagan ◽  
S. F. M. Jenniskens ◽  
...  
Keyword(s):  
Radiofrequency Ablation ◽  
Local Recurrence ◽  
Real Time ◽  
Sensitivity And Specificity ◽  
Gold Standard ◽  
Pearson Correlation ◽  
Visual Assessment ◽  
Simulation Software ◽  
Hepatic Tumors ◽  
Recurrence Rates

Abstract Objectives Radiofrequency ablation (RFA) can be associated with local recurrences in the treatment of liver tumors. Data obtained at our center for an earlier multinational multicenter trial regarding an in-house developed simulation software were re-evaluated in order to analyze whether the software was able to predict local recurrences. Methods Twenty-seven RFA ablations for either primary or secondary hepatic tumors were included. Colorectal liver metastases were shown in 14 patients and hepatocellular carcinoma in 13 patients. Overlap of the simulated volume and the tumor volume was automatically generated and defined as positive predictive value (PPV) and additionally visually assessed. Local recurrence during follow-up was defined as gold standard. Sensitivity and specificity were calculated using the visual assessment and gold standard. Results Mean tumor size was 18 mm (95% CI 15–21 mm). Local recurrence occurred in 5 patients. The PPV of the simulation showed a mean of 0.89 (0.84–0.93 95% CI). After visual assessment, 9 incomplete ablations were observed, of which 4 true positives and 5 false positives for the detection of an incomplete ablation. The sensitivity and specificity were, respectively, 80% and 77% with a correct prediction in 78% of cases. No significant correlation was found between size of the tumor and PPV (Pearson Correlation 0.10; p = 0.62) or between PPV and recurrence rates (Pearson Correlation 0.28; p = 0.16). Conclusions The simulation software shows promise in estimating the completeness of liver RFA treatment and predicting local recurrence rates, but could not be performed real-time. Future improvements in the field of registration could improve results and provide a possibility for real-time implementation.

EP.TU.370A 5-year re-audit of quality indicators for potentially curative rectal cancer resections by a single surgeon

2021 ◽  
Vol 108 (Supplement_7) ◽  
Author(s):  
Jessica Lockhart ◽  
Damian McKay
Keyword(s):  
Rectal Cancer ◽  
Local Recurrence ◽  
Resection Margin ◽  
Length Of Hospital Stay ◽  
Long Term Outcomes ◽  
Recurrence Rates ◽  
High Quality ◽  
Curative Intent ◽  
R1 Resection

Abstract Aim High quality operations with low rates of tumour perforation and circumferential resection margin (CRM) positivity are associated with improved long-term outcomes following surgery for rectal cancer. Previous audit has demonstrated lower rates of tumour perforation and CRM positivity by a single surgeon compared to the published standards. Our aim is to re-audit this surgeons’ outcomes for curative rectal resections. Methods Data was collected retrospectively for all potentially curative rectal resections over a 5-year period performed by a single surgeon using a local database and electronic care records. The CRM status and tumour perforation status were considered. Other end points included the rate of local recurrence, survival and length of stay. Results Fifty-one patients underwent rectal resections with curative intent, with a median age of 67. Complete resection (R0) was achieved in 94.1% of cases; 3.92% were found to have nodes less than 1mm from the margin and 1.96% were found to have tumour deposit less than 1mm from the margin – these cases were considered to be an R1 resection. Tumour perforation was present in 3.92% of cases, all of which had occurred pre-operatively. Local recurrence was found in 5.88% of cases and 90-day mortality was 1.96%. Median length of hospital stay was 7 days. Conclusion Our data demonstrates sustained high quality surgical outcomes with low tumour perforation rates and CRM positivity rates which compare favourably with the published standards to date. Local recurrence rates are comparable to published standards and 90-day mortality continues to be low.

scholarly journals Evidence for Tissue Toxicity in BALB/c Exposed to a Long-Term Treatment with Oxiranes Compared to Meglumine Antimoniate

2017 ◽  
Vol 2017 ◽  
pp. 1-11 ◽  
Author(s):  
Luiz Filipe Gonçalves Oliveira ◽  
Franklin Souza-Silva ◽  
Léa Cysne-Finkelstein ◽  
Kíssila Rabelo ◽  
Juliana Fernandes Amorim ◽  
...  
Keyword(s):  
Public Health Problem ◽  
Term Treatment ◽  
Effective Control ◽  
Severe Damage ◽  
Histological Changes ◽  
Meglumine Antimoniate ◽  
Long Term Treatment ◽  
Pharmacokinetic Properties ◽  
Effective Drugs

Leishmaniasis remains a serious public health problem in developing countries without effective control, whether by vaccination or chemotherapy. Part of the failure of leishmaniasis control is due to the lack of new less toxic and more effective drugs able to eliminate both the lesions and the parasite. Oxiranes derived from naphthoquinones now being assayed are promising drugs for the treatment of this group of diseases. The predicted pharmacokinetic properties and toxicological profiles of epoxy-α-lapachone and epoxymethoxy-lawsone have now been compared to those of meglumine antimoniate, and histological changes induced by these drugs in noninfected BALB/c mice tissues are described. Effects of these compounds on liver, kidney, lung, heart, and cerebral tissues of healthy mice were examined. The data presented show that both these oxiranes and meglumine antimoniate induce changes in all BALB/c mice tissues, with the lung, heart, and brain being the most affected. Epoxymethoxy-lawsone was the most toxic to lung tissue, while most severe damage was caused in the heart by epoxy-α-lapachone. Meglumine antimoniate caused mild-to-moderate changes in heart and lung tissues.

Comparing long-term local recurrence rates of surgical and non-surgical management of close anterior margins in breast conserving surgery

2019 ◽  
Vol 176 (2) ◽  
pp. 311-319
Author(s):  
George Boundouki ◽  
Joseph Ryan Wong Sik Hee ◽  
Natalie Croghan ◽  
Katie Stocking ◽  
Andrew Pieri ◽  
...  
Keyword(s):  
Local Recurrence ◽  
Surgical Management ◽  
Breast Conserving Surgery ◽  
Recurrence Rates

A literature review of the role of brachytherapy in the management of early-stage breast cancer

2019 ◽  
Vol 19 (3) ◽  
pp. 281-290
Author(s):  
Rebecca Thorpe ◽  
Heather Drury-Smith
Keyword(s):  
Quality Of Life ◽  
Overall Survival ◽  
Local Recurrence ◽  
Literature Review ◽  
Survival Rates ◽  
External Beam Radiation ◽  
Recurrence Rates ◽  
Overall Survival Rates

AbstractBackground:This review evaluates whether brachytherapy can be considered as an alternative to whole breast irradiation (WBI) using criteria such as local recurrence rates, overall survival rates and quality of life (QoL) factors. This is an important issue because of a decline in local recurrence rates, suggesting that some women at very low risk of recurrence may be incurring the negative long-term side effects of WBI without benefitting from a reduction in local recurrence and greater overall survival. As such, the purpose of this literature review is to evaluate whether brachytherapy is a credible alternative to external beam radiation with a particular focus on the impact it has on patient QoL.Methods:The search terms used were devised by using the Population Intervention Comparison Outcome framework, and a literature search was carried out using Boolean connectors and Medical Subject Headings in the PubMed database. The resultant articles were manually assessed for relevance and appraised using the Scottish Intercollegiate Guidelines Network tool. Additional papers were sourced from the citations of articles found using the search strategy. Government guidelines and regulations were also used following a manual search on the National Institute for Health and Care Excellence website. This process resulted in a total of 30 sources being included as part of the review.Results:Three types of brachytherapy were the foundation for the majority of the papers found: interstitial multi-catheter brachytherapy, intra-cavity brachytherapy and permanent seed implantation. The key themes that arose from the literature were that brachytherapy is equivalent to WBI both in terms of 5-year local recurrence rates and overall survival rates at 10–12 years. The findings showed that brachytherapy was superior to WBI for some QoL factors such as being less time-consuming and equal in terms of others such as breast cosmesis. The results did also show that brachytherapy does come with its own local toxicities that could impact upon QoL such as the poor breast cosmesis associated with some brachytherapy techniques.Conclusion:In conclusion, brachytherapy was deemed a safe or acceptable alternative to WBI, but there is a need for further research on the long-term local recurrence rates, survival rates and quality of life issues as the volume of evidence is still significantly smaller for brachytherapy than for WBI. Specifically, there needs to be further investigation as to which patients will benefit from being offered brachytherapy and the influence that factors such as co-morbidities, performance status and patient choice play in these decisions.

scholarly journals Long-Term Outcomes Following Hepatic Resection and Radiofrequency Ablation of Colorectal Liver Metastases

HPB Surgery ◽  
2009 ◽  
Vol 2009 ◽  
pp. 1-8 ◽  
Author(s):  
Andrew McKay ◽  
Katherine Fradette ◽  
Jeremy Lipschitz
Keyword(s):  
Radiofrequency Ablation ◽  
Local Recurrence ◽  
Liver Metastases ◽  
Hepatic Resection ◽  
Colorectal Liver Metastases ◽  
Controlled Trials ◽  
Long Term Outcomes ◽  
Randomized Controlled ◽  
Study Support

Recently some have called for randomized controlled trials comparing RFA to hepatic resection, particularly for patients with only a few small metastases. The objectives were to compare local recurrence and survival following RFA and hepatic resection for colorectal liver metastases. This was a retrospective review of open RFA and hepatic resection for colorectal liver metastases between January 1998 and May 2007. All patients who had RFA were considered to have unresectable disease. 58 patients had hepatic resection and 43 had RFA. A 5-year survival after resection was 43% compared to 23% after RFA. For patients with solitary lesions, a 5-year survival was 48% after resection and 15% after RFA. Sixty percent of patients suffered local recurrences after RFA compared to 7% after hepatic resection. RFA is inferior to resection. The results observed in this study support the consensus that RFA cannot be considered an equivalent procedure to hepatic resection.

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