scholarly journals Impact of resection margin status on survival in advanced N stage pancreatic cancer – a multi-institutional analysis

2021 ◽  
Author(s):  
Christian Teske ◽  
Richard Stimpel ◽  
Marius Distler ◽  
Susanne Merkel ◽  
Robert Grützmann ◽  
...  
Keyword(s):  
Lymph Node ◽  
Resection Margin ◽  
Cox Regression ◽  
Institutional Analysis ◽  
Ductal Adenocarcinoma ◽  
Resection Margins ◽  
Lymph Node Status ◽  
Cox Regression Analysis ◽  
N Stage ◽  
The Impact

Abstract Background The present study aimed to examine the impact of microscopically tumour-infiltrated resection margins (R1) in pancreatic ductal adenocarcinoma (PDAC) patients with advanced lymphonodular metastasis (pN1–pN2) on overall survival (OS). Methods This retrospective, multi-institutional analysis included patients undergoing surgical resection for PDAC at three tertiary university centres between 2005 and 2018. Subcohorts of patients with lymph node status pN0–N2 were stratified according to the histopathological resection status using Kaplan-Meier survival analysis. Results The OS of the entire cohort (n = 620) correlated inversely with the pN status (26 [pN0], 18 [pN1], 11.8 [pN2] months, P < 0.001) and R status (21.7 [R0], 12.5 [R1] months, P < 0.001). However, there was no statistically significant OS difference between R0 versus R1 in cases with advanced lymphonodular metastases: 19.6 months (95% CI: 17.4–20.9) versus 13.6 months (95% CI: 10.7–18.0) for pN1 stage and 13.7 months (95% CI: 10.7–18.9) versus 10.1 months (95% CI: 7.9–19.1) for pN2, respectively. Accordingly, N stage–dependent Cox regression analysis revealed that R status was a prognostic factor in pN0 cases only. Furthermore, there was no significant survival disadvantage for patients with R0 resection but circumferential resection margin invasion (≤ 1 mm; CRM+; 10.7 months) versus CRM-negative (13.7 months) cases in pN2 stages (P = 0.5). Conclusions An R1 resection is not associated with worse OS in pN2 cases. If there is evidence of advanced lymph node metastasis and a re-resection due to an R1 situation (e.g. at venous or arterial vessels) may substantially increase the perioperative risk, margin clearance in order to reach local control might be avoided with respect to the OS.

The impact of peri-operative chemotherapy for patients with lymph node-positive urothelial cancer.

2017 ◽  
Vol 35 (6_suppl) ◽  
pp. 388-388
Author(s):  
Jeenan Kaiser ◽  
Haocheng Li ◽  
Richard M. Lee-Ying ◽  
Daniel Yick Chin Heng ◽  
Nimira S. Alimohamed
Keyword(s):  
Lymph Node ◽  
Surgical Management ◽  
Urothelial Cancer ◽  
Locally Advanced ◽  
Cox Regression Analysis ◽  
Chemotherapy Group ◽  
T Stage ◽  
Group A ◽  
N Stage ◽  
The Impact

388 Background: Patients with locally advanced urothelial cancer with regional lymph node involvement (LN+) have a poor prognosis. Surgical management of these patients is controversial and practice patterns vary. We evaluated the outcomes of patients with LN+ disease treated with pre-operative chemotherapy and cystectomy, cystectomy and post-operative chemotherapy, and chemotherapy alone. Methods: Patients with urothelial cancer with TxN1-3M0 disease treated with chemotherapy in Alberta from 2005 to 2015 were evaluated. Progression-free survival (PFS) and overall survival (OS) were evaluated using Kaplan-Meier analysis. Cox regression analysis was performed to evaluate the impact of age, gender, T stage, and N stage on survival. Results: 184 patients with LN+ disease treated with chemotherapy were evaluable for outcomes; 42 underwent pre-operative chemotherapy (Group A), 92 underwent post-operative chemotherapy (Group B), and 50 received chemotherapy alone (Group C). The median age at diagnosis was 65 years (range 31-89) and most patients (83%) were male. The median follow-up time was 23.2 months. A higher T stage was seen in patients in Group A, while patients in Group C had a higher N stage. The median number of chemotherapy cycles delivered was equal in all arms at 4. Patients in Group A or B had significantly better PFS and OS compared with patients in Group C (Table). When adjusting for age, gender, T stage, and N stage, patients in Group C had significantly lower OS compared with those patients in Group A (HR 1.87, 95% CI 1.09 – 3.18, p=0.02). Conclusions: In this real-world analysis of patients with LN+ urothelial cancer, patient outcomes were improved with surgical resection of disease in combination with pre-operative chemotherapy. After chemotherapy in fit patients with LN+ disease, surgical management is a reasonable consideration. [Table: see text]

scholarly journals The prognostic value of lymph node ratio in comparison to positive lymph node count in penile squamous cell carcinoma

2021 ◽  
Author(s):  
Jiajie Yu ◽  
Qian Long ◽  
Zhiqiang Zhang ◽  
Shufen Liao ◽  
Fufu Zheng
Keyword(s):  
Squamous Cell Carcinoma ◽  
Lymph Node ◽  
Cell Carcinoma ◽  
Squamous Cell ◽  
Cox Regression ◽  
Cox Regression Analysis ◽  
Lymph Node Count ◽  
Ajcc Stage ◽  
N Stage ◽  
Penile Squamous Cell Carcinoma

Abstract Purpose Penile cancer is a rare male neoplasm with a wide variation in its global incidence. In this study, the prognostic value of lymph node ratio (LNR) was compared to that of positive lymph node count (PLNC) in penile squamous cell carcinoma. Methods A total of 249 patients with penile squamous cell carcinoma were enrolled from The Surveillance, Epidemiology, and End Results (SEER) database between 2010 and 2015. The X-tile program was used to calculate the optimal cut-off values of LNR and PLNC that discriminate survival. We used the χ2 or the Fisher exact probability test to assess the association between clinical-pathological characteristics and LNR or PLNC. Univariate and multivariate Cox regression analyses were performed to identify independent prognostic factors for survival. Spearman correlation analysis was used to determine the correlation between LNR and PLNC. Results We found that patients with high LNR tended to have advanced N stage, the 7th AJCC stage, and higher pathological grade, while patients with high PLNC had advanced N stage and the 7th AJCC stage. Univariate Cox regression analysis revealed that the N stage, M stage, the 7th AJCC stage, lymph-vascular invasion, LNR, and PLNC were significantly associated with prognosis. Multivariate Cox regression analysis demonstrated that LNR rather than PLNC was an independent prognostic factor for cancer-specific survival. Subgroup analysis of node-positive patients showed that LNR was associated with CSS, while PLNC was not. Conclusion LNR was a better predictor for long-term prognosis than PLNC in patients with penile squamous cell carcinoma.

Gene-signature based prediction of relapse-free survival in melanoma patients with known sentinel lymph node status.

2017 ◽  
Vol 35 (15_suppl) ◽  
pp. e21037-e21037 ◽  
Author(s):  
Thilo Gambichler ◽  
Uwe Reinhold ◽  
Konstantinos Tsagoudis ◽  
Erhard Bierhoff ◽  
Thomas Dirschka ◽  
...  
Keyword(s):  
Gene Expression ◽  
Lymph Node ◽  
Sentinel Lymph Node ◽  
Cox Regression ◽  
Lymph Node Status ◽  
Study Cohort ◽  
Double Blind Study ◽  
Relapse Free Survival ◽  
Free Survival ◽  
Cox Regression Analysis

e21037 Background: Staging of cutaneous melanoma (CM), as defined by the American Joint Committee on Cancer (AJCC), includes determination of the sentinel lymph node (SLN) status as a major prognostic factor. We have previously identified and validated a gene expression risk score (GRS) in primary CM and adjacent stroma, consisting of 7 protective genes and 1 risk-associated gene, which predicts patient survival, independently of AJCC stage. This external validation study evaluated single and combined performance of GRS and SLN in predicting relapse-free survival (RFS). Methods: The study cohort included 203 formalin-fixed, paraffin-embedded (FFPE) -primary CMs (AJCC stages IA-IIIC, n=31 RFS events). Tissue samples and clinical data were provided by two centers, and gene expression was determined externally using real-time RT-PCR (double-blind study). External prospective data analysis followed a pre-specified protocol. Results: Integration Discrimination Improvement (IDI) analysis demonstrated non-inferiority of GRS vs. SLN status in predicting RFS (IDI estimate=-0.8%, p=0.040). In univariate Cox regression analysis, GRS and SLN status predicted RFS (GRS: p=0.011, HR=2.44 [1.2-4.95]; SLN: p=0.038, HR=2.12 [1.03-4.38]). Multivariate Cox regression demonstrated independent contribution of prognostic information by both parameters (GRS: p=0.015, HR=2.40 [1.18-4.89]; SLN: p=0.046, HR=2.11 [1.02-4.37]. IDI analysis demonstrated that combining GRS and SLN status improved prognostic performance, as compared to SLN status alone (IDI estimate=3.2%, p=0.044). When complementing SLN status with GRS (SLN positive or high GRS), sensitivity of relapse detection increased from 38.7% for SLN alone to 67.7%. Conclusions: GRS is a non-invasive predictor of RFS, complementary to SLN analysis. Combining GRS and SLN status significantly improves accuracy of melanoma prognosis and, therefore, may guide follow-up care as well as treatment decisions regarding new adjuvant therapies, e.g. of SLN positive patients with high GRS. [Table: see text]

scholarly journals Clinical Significance and Risk Factors of Local Recurrence in Synovial Sarcoma: A Retrospective Analysis of 171 Cases

2022 ◽  
Vol 8 ◽  
Author(s):  
Hongqiang Zhang ◽  
Wending Huang ◽  
Qi Feng ◽  
Wei Sun ◽  
Wangjun Yan ◽  
...  
Keyword(s):  
Risk Factors ◽  
Local Recurrence ◽  
Synovial Sarcoma ◽  
Cox Regression ◽  
Resection Margins ◽  
Free Survival ◽  
Cox Regression Analysis ◽  
Distant Relapse ◽  
Multiple Recurrences ◽  
The Impact

Objective: To investigate risk factors of local recurrence of synovial sarcoma and the impact of local recurrence on survival.Methods: We retrospectively reviewed clinical data of patients with II to IIIB (AJCC8) synovial sarcoma who underwent surgery at our center between March 2005 and December 2016. Data relating clinicopathological factors, treatment and prognosis were collected. The impact of local recurrence on overall survival (OS), local recurrence-free survival (LRFS), and distant relapse-free survival (DRFS) were analyzed. The prognostic factors associated with local recurrence were also analyzed using Kaplan-Meier Curves and Cox regression analysis.Results: A total of 171 patients were included in this analysis. After a median follow-up of 48 months, 66 patients (38.6%) experienced local recurrence. The 5-year OS, LRFS, and DRFS rates of patients with local recurrence were 37.6, 6.1, and 24.1%, respectively. Multivariate analysis showed that larger initial tumors, multiple recurrences, positive resection margins, marginal resection, and lack of adjuvant therapy were associated with higher local recurrence.Conclusion: Local recurrence of synovial sarcoma is associated with distant metastasis and poor survival. Chemoradiation improves the prognosis of patients with local recurrence, in particular those for which recurrence occurs shortly after initial treatment.

scholarly journals Adjuvant Chemotherapy Associated with Survival Benefit Following Neoadjuvant Chemotherapy and Pancreatectomy for Pancreatic Ductal Adenocarcinoma: A Population-Based Cohort Study

2021 ◽  
Author(s):  
Sivesh K. Kamarajah ◽  
Steven A. White ◽  
Samer A. Naffouje ◽  
George I Salti ◽  
Fadi Dahdaleh
Keyword(s):  
Adjuvant Chemotherapy ◽  
Neoadjuvant Chemotherapy ◽  
Pancreatic Ductal Adenocarcinoma ◽  
Cox Regression ◽  
Margin Status ◽  
Ductal Adenocarcinoma ◽  
Term Survival ◽  
Cox Regression Analysis ◽  
Cancer Data ◽  
The Impact

Abstract Background Data supporting the routine use of adjuvant chemotherapy (AC) compared with no AC (noAC) following neoadjuvant chemotherapy (NAC) and resection for pancreatic ductal adenocarcinoma (PDAC) are lacking. This study aimed to determine whether AC improves long-term survival in patients receiving NAC and resection. Methods Patients receiving resection for PDAC following NAC from 2004 to 2016 were identified from the National Cancer Data Base (NCDB). Patients with a survival rate of < 6 months were excluded to account for immortal time bias. Propensity score matching (PSM) and Cox regression analysis were performed to account for selection bias and analyze the impact of AC on overall survival. Results Of 4449 (68%) noAC patients and 2111 (32%) AC patients, 2016 noAC patients and 2016 AC patients remained after PSM. After matching, AC was associated with improved survival (median 29.4 vs. 24.9 months; p < 0.001), which remained after multivariable adjustment (HR 0.81, 95% confidence interval [CI] 0.75–0.88; p < 0.001). On multivariable interaction analyses, this benefit persisted irrespective of nodal status: N0 (hazard ratio [HR] 0.80, 95% CI 0.72–0.90; p < 0.001), N1 (HR 0.76, 95% CI 0.67–0.86; p < 0.001), R0 margin status (HR 0.82, 95% CI 0.75–0.89; p < 0.001), R1 margin status (HR 0.77, 95% CI 0.64–0.93; p = 0.007), no neoadjuvant radiotherapy (NART; HR 0.84, 95% CI 0.74–0.96; p = 0.009), and use of NART (HR 0.80, 95% CI 0.73–0.88; p < 0.001). Stratified analysis by nodal, margin, and NART status demonstrated consistent results. Conclusion AC following NAC and resection is associated with improved survival, even in margin-negative and node-negative disease. These findings suggest completing planned systemic treatment should be considered in all resected PDACs previously treated with NAC.

Survival and prognostic factors in patients with malignant pleural mesothelioma (MPM) treated with neoadjuvant cisplatin- based chemotherapy and extrapleural pneumonectomy (EPP) (SITMP Study)

2007 ◽  
Vol 25 (18_suppl) ◽  
pp. 18061-18061
Author(s):  
V. Mutri ◽  
C. Pinto ◽  
A. Marino ◽  
M. Di Bisceglie ◽  
D. Dell’Amore ◽  
...  
Keyword(s):  
Prognostic Factors ◽  
Preoperative Chemotherapy ◽  
Cox Regression ◽  
Objective Response ◽  
Resection Margins ◽  
Extrapleural Pneumonectomy ◽  
Cox Regression Analysis ◽  
Group A ◽  
Group B ◽  
The Impact

18061 Background: The aim of this study is to evaluate the impact on survival of preoperative chemotherapy in potentially resectable MPM and correlations with prognostic factors. Methods: The eligibility criteria were: histologically MPM, stage T1–3N0–2M0, age =75 years, KPS = 80, adequate organ function. A first group of pts (group A) received cisplatin 75 mg/m2 d1 and gemcitabine 1,200 mg/m2 d1,8, every 3 weeks for 4 courses, followed by EPP and by 6 courses of adjuvant chemotherapy with mitoxantrone 10 mg/m2 d1, methotrexate 35 mg/m2 d1 and mitomycin 7 mg/m2 d1, every 3 weeks with mitomycin in alternate cycles. A second group of pts (group B) received cisplatin 75 mg/m2 d1 plus pemetrexed 500 mg/m2 d1 for 4 cycles. In each group, only those pts with metastatic lymph nodes and/or positive resection margins received radiotherapy after EPP. The prognostic factors evaluated were: sex, histotype, stage at diagnosis, clinical objective response. Results: Between February 2000 and December 2006, 32 pts were enrolled (8 group A, 24 group B). Pt characteristics were: 27M (84.4%), 5F (15.6%), median age 64 years (51–72), median KPS 100 (80–100), histological subtype: 27 (84.4%) epithelial, 2 (6.3%) sarcomatous, 3 (9.4%) mixed; IMIG stage: 6 (18.8%) I, 16 (50%) II, 10 (31.2%) III. The clinical response to neoadjuvant chemotherapy was: 10 (31.3%) CR + PR, 16 (50%) SD and 6 (18.7%) PD. Eighteen (56.3%) pts underwent EPP. In the 14 pts who did not undergo EPP: 5 (15.6%) were treated with pleurectomy and 9 (28.1%) were not treated with surgery. Two postoperative deaths (1 contralateral pneumonia and 1 ARDS) occurred after EPP. No pts were treated with radiotherapy after EPP. The estimated median overall survival, 1-year and 2-year survival rates in the pts treated with EPP and not treated with EPP were 20 and 12 months (p=0.468), 60 and 41%, 42 and 20%, respectively. In the multivariate analysis (Cox regression analysis), none of evaluated prognostic factors was significantly associated with an improved OS. Conclusions: These data show that preoperative chemotherapy followed by EPP is a feasible approach, while initial analysis suggests favourable survival. No significant prognostic factors were identified. No significant financial relationships to disclose.

The natural history and effect of adjuvant therapy on resected AJCC stage I-II lymph node-negative pancreatic cancer.

2012 ◽  
Vol 30 (4_suppl) ◽  
pp. 264-264
Author(s):  
Shaun McKenzie ◽  
Bin Huang ◽  
Thomas Tucker ◽  
Patrick McGrath ◽  
Dennie V. Jones ◽  
...  
Keyword(s):  
Lymph Node ◽  
Adjuvant Chemotherapy ◽  
Adjuvant Therapy ◽  
Pancreatic Adenocarcinoma ◽  
Cox Regression ◽  
Early Stage ◽  
Stage I ◽  
Lymph Node Status ◽  
Node Negative ◽  
The Impact

264 Background: Previous investigation has suggested that early stage, lymph node negative pancreatic adenocarcinoma (PAC) has a relatively good prognosis and adjuvant therapy provides little benefit over surgery alone. The purpose of our trial was to evaluate patients with stage I-II PAC receiving surgical resection to determine their clinical characteristics, overall outcome, and the impact of adjuvant therapy on survival. Methods: Utilizing the population-based registry data from the Kentucky Cancer Registry (KCR) we identified patients with lymph node negative, AJCC I-II, PAC who underwent pancreatic resection during the years of 1995-2008. Patients were further stratified by receipt of surgery alone versus surgery with adjuvant chemotherapy or chemoradiation. Clinical and pathologic data included patient demographics, tumor characteristics, and lymph node status. Kaplan-Meier and Cox-regression survival analyses were performed. Results: During the study period, 203 patients meeting criteria were identified from the KCR. Median survival (MS) for the entire cohort was 21.7 months. The majority of patients were >70 years old, Caucasian, had well or moderately differentiated tumors and tumors <5cm. 46% (n=94) and 54% (n=109) of patients had stage I and II disease respectively. When stratified by surgery only (n=119, 59%) versus adjuvant therapy (n=84, 41%), only younger age predicted receipt of adjuvant therapy (p=0.002). Adjuvant therapy provided no benefit over surgery alone regardless of stage (stage I MS: 21.5 vs. 24.7 months, p=0.97 and stage II MS: 24.2 vs. 18.0, p=0.13, respectively). By multivariate analysis, only tumor size >5cm predicted worse survival (HR 2.32, CI 1.21-4.45, p=0.012). Age, stage, adjuvant therapy, differentiation, and lymph node retrieval had no impact on survival. Conclusions: Our data indicate that the survival for surgically resected early stage, lymph node negative pancreatic adenocarcinoma remains poor and is not improved by the addition of adjuvant chemotherapy. These findings should be considered when designing future adjuvant therapy trials for this deadly disease.

The impact of lung and bone metastases on prognosis in advanced PDAC.

2018 ◽  
Vol 36 (4_suppl) ◽  
pp. 494-494
Author(s):  
Grainne M. O'Kane ◽  
Adriana Fraser ◽  
Stephanie Moignard ◽  
Anna Dodd ◽  
Sean Creighton ◽  
...  
Keyword(s):  
Bone Metastases ◽  
Metastatic Disease ◽  
Cox Regression ◽  
Locally Advanced ◽  
Multivariable Analysis ◽  
Ductal Adenocarcinoma ◽  
Peritoneal Disease ◽  
Cox Regression Analysis ◽  
Cytotoxic Treatment ◽  
The Impact

494 Background: Pancreatic ductal adenocarcinoma (PDAC) remains a highly fatal disease inherently resistant to cytotoxic treatment. Despite the prevalence of liver and peritoneal metastases, subsets of patients also develop lung and bone metastases highlighting phenotypic heterogeneity. We reviewed the prognostic implications of metastatic sites on survival. Methods: This retrospective cohort study included all patients with PDAC who received surgical or oncological treatment at the University Health Network from September 2012 until December 2016. Clinical and pathological variables were obtained from patient electronic records. Radiological images and pathology reports were reviewed to ascertain sites of metastatic disease. The Kaplan-Meier method for survival and multivariable cox regression analysis identified prognostic factors. Results: 1153 patients were reviewed and 985 were included. 55% were male and the median age at diagnosis was 67 years. 287 (29%) completed curative surgery and 698 (71%) had locally advanced or metastatic disease; the median survival was 22 months and 9 months respectively. Lung and bone metastases were present in 18% (N = 180) and 6% (N = 58) of patients. In multivariable analysis increasing age and stage at diagnosis correlated with inferior survival (p < 0.0001) and the presence of any lung (HR 0.77; 95% CI 0.63-0.94, p = 0.01) or bone metastases (HR 0.74; 95% CI 0.54-1.0, p = 0.05) resulted in improved outcomes. Liver and peritoneal disease were not prognostic. Sex and family history of PDAC did not associate with survival. There was no association between site of metastases and sex however patients with bone metastases were significantly younger at first diagnosis (median age 63yrs, p < 0.01). Conclusions: Patients with advanced PDAC and metastases to lung or bone may represent distinct biological subtypes of PDAC. Molecular profiling of available tissue is ongoing.

scholarly journals In the Era of the Leeds Protocol: A Systematic Review and A Meta-Analysis on the Effect of Resection Margins on Survival Among Pancreatic Ductal Adenocarcinoma Patients

2020 ◽  
Vol 109 (1) ◽  
pp. 11-17
Author(s):  
B. Kurlinkus ◽  
R. Ahola ◽  
E. Zwart ◽  
A. Halimi ◽  
B. S. Yilmaz ◽  
...  
Keyword(s):  
Systematic Review ◽  
Pancreatic Ductal Adenocarcinoma ◽  
Resection Margin ◽  
Meta Analysis ◽  
Hazard Ratio ◽  
Systematic Search ◽  
Ductal Adenocarcinoma ◽  
Resection Margins ◽  
Inverse Variance ◽  
The Impact

Background and Aims: A positive resection margin is considered to be a factor associated with poor prognosis after pancreatic ductal adenocarcinoma resection. However, analysis of the resection margin is dependent on the pathological slicing technique. The aim of this systematic review and meta-analysis was to study the impact of resection margin on the survival of pancreatic ductal adenocarcinoma patients whose specimens were analyzed using the axial slicing technique. Material and Methods: A systematic search in the PubMed, Cochrane, and Embase datasets covering the time period from November 2006 to January 2019 was performed. Only studies with axial slicing technique (Leeds Pathology Protocol or Royal College of Pathology Protocol) were included in the final database. Meta-analysis between the marginal distance and survival was performed with the Inverse Variance Method in RevMan. Results: The systematic search resulted in nine studies meeting the inclusion criteria. The median survival for a resection margin 0 mm ranged from 12.3 to 23.4 months, for resection margin <0.5 mm 16 months, for resection margin <1 mm ranged from 11 to 27.5 months, for resection margin <1.5 mm ranged from 16.9 to 21.2 months, and for resection margin >2 mm ranged from 53.9 to 63.1 months. Five studies were eligible for meta-analysis. The pooled multivariable hazard ratio favored resection margin ⩾1 mm (hazard ratio: 1.32 and 95% confidence interval: 1.03–1.68, p = 0.03). Conclusion: Resection margins ⩾1 mm seem to lead to better survival in pancreatic ductal adenocarcinoma patients than resection margin <1 mm. However, there is not enough data to evaluate the effect of oncologic therapy or to analyze the impact of other resection margin distances on survival.

Impact of Hybrid Operating Rooms on Long-Term Clinical Outcomes Following Fenestrated and Branched Endovascular Aortic Repair

2021 ◽  
pp. 152660282199672
Author(s):  
Giovanni Tinelli ◽  
Marie Bonnet ◽  
Adrien Hertault ◽  
Simona Sica ◽  
Gian Luca Di Tanna ◽  
...  
Keyword(s):  
Operating Room ◽  
Clinical Outcomes ◽  
Cox Regression ◽  
Statistical Significance ◽  
Aortic Aneurysms ◽  
Study Patient ◽  
Cox Regression Analysis ◽  
Significant Difference ◽  
The Impact

Purpose: Evaluate the impact of hybrid operating room (HOR) guidance on the long-term clinical outcomes following fenestrated and branched endovascular repair (F-BEVAR) for complex aortic aneurysms. Materials and Methods: Prospectively collected registry data were retrospectively analyzed to compare the procedural, short- and long-term outcomes of consecutive F-BEVAR performed from January 2010 to December 2014 under standard mobile C-arm versus hybrid room guidance in a high-volume aortic center. Results: A total of 262 consecutive patients, including 133 patients treated with a mobile C-arm equipped operating room and 129 with a HOR guidance, were enrolled in this study. Patient radiation exposure and contrast media volume were significantly reduced in the HOR group. Short-term clinical outcomes were improved despite higher case complexity in the HOR group, with no statistical significance. At a median follow-up of 63.3 months (Q1 33.4, Q3 75.9) in the C-arm group, and 44.9 months (Q1 25.1, Q3 53.5, p=0.53) in the HOR group, there was no statistically significant difference in terms of target vessel occlusion and limb occlusion. When the endograft involved 3 or more fenestrations and/or branches (complex F-BEVAR), graft instability (36% vs 25%, p=0.035), reintervention on target vessels (20% vs 11%, p=0.019) and total reintervention rates (24% vs 15%, p=0.032) were significantly reduced in the HOR group. The multivariable Cox regression analysis did not show statistically significant differences for long-term death and aortic-related death between the 2 groups. Conclusion: Our study suggests that better long-term clinical outcomes could be observed when performing complex F-BEVAR in the latest generation HOR.

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