1
|
Zohar N, Kowal L, Moskal D, Ponzini F, Sun G, Lamm RJ, Williamson J, Nevler A, Lavu H, Maley WR, Yeo CJ, Bowne WB. Contemporary report of surgical outcomes after single-stage total pancreatectomy: A 10-year experience. J Surg Oncol 2024; 129:1235-1244. [PMID: 38419193 DOI: 10.1002/jso.27614] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2023] [Revised: 01/25/2024] [Accepted: 02/11/2024] [Indexed: 03/02/2024]
Abstract
BACKGROUND Surgeons rarely perform elective total pancreatectomy (TP). Our study seeks to report surgical outcomes in a contemporary series of single-stage (SS) TP patients. METHODS Between the years 2013 to 2023 we conducted a retrospective review of 60 consecutive patients who underwent SSTP. Demographics, pathology, treatment-related variables, and survival were recorded and analyzed. RESULTS SSTP consisted of 3% (60/1859) of elective pancreas resections conducted. Patient median age was 68 years. Ninety percent of these patients (n = 54) underwent SSTP for pancreatic ductal adenocarcinoma (PDAC). Conversion from a planned partial pancreatectomy to TP occurred intraoperatively in 31 (52%) patients. Fifty-nine patients (98%) underwent an R0 resection. Median length of hospital stay was 6 days. The majority of morbidities were minor, with 27% patients (n = 16) developing severe complications (Clavien-Dindo ≥3). Thirty and ninety-day mortality rates were 1.67% (one patient) and 5% (three patients), respectively. Median survival for the entire cohort was 24.4 months; 22.7 months for PDAC patients, with 1-, 3-, and 5-year survival of 68%, 43%, and 16%, respectively. No mortality occurred in non-PDAC patients (n = 6). CONCLUSION Elective single-stage total pancreatectomy can be a safe and appropriate treatment option. SSTP should be in the armamentarium of surgeons performing pancreatic resection.
Collapse
Affiliation(s)
- Nitzan Zohar
- Department of Surgery, Jefferson Pancreas, Biliary and Related Cancer Center, Thomas Jefferson University, Philadelphia, Pennsylvania, USA
| | - Luke Kowal
- Sidney Kimmel Medical College, Thomas Jefferson University, Philadelphia, Pennsylvania, USA
| | - David Moskal
- Sidney Kimmel Medical College, Thomas Jefferson University, Philadelphia, Pennsylvania, USA
| | - Francesca Ponzini
- Sidney Kimmel Medical College, Thomas Jefferson University, Philadelphia, Pennsylvania, USA
| | - George Sun
- Sidney Kimmel Medical College, Thomas Jefferson University, Philadelphia, Pennsylvania, USA
| | - Ryan J Lamm
- Department of Surgery, Jefferson Pancreas, Biliary and Related Cancer Center, Thomas Jefferson University, Philadelphia, Pennsylvania, USA
| | - John Williamson
- Sidney Kimmel Medical College, Thomas Jefferson University, Philadelphia, Pennsylvania, USA
| | - Avinoam Nevler
- Department of Surgery, Jefferson Pancreas, Biliary and Related Cancer Center, Thomas Jefferson University, Philadelphia, Pennsylvania, USA
| | - Harish Lavu
- Department of Surgery, Jefferson Pancreas, Biliary and Related Cancer Center, Thomas Jefferson University, Philadelphia, Pennsylvania, USA
| | - Warren R Maley
- Department of Surgery, Jefferson Transplant Institute, Thomas Jefferson University, Philadelphia, Pennsylvania, USA
| | - Charles J Yeo
- Department of Surgery, Jefferson Pancreas, Biliary and Related Cancer Center, Thomas Jefferson University, Philadelphia, Pennsylvania, USA
| | - Wilbur B Bowne
- Department of Surgery, Jefferson Pancreas, Biliary and Related Cancer Center, Thomas Jefferson University, Philadelphia, Pennsylvania, USA
| |
Collapse
|
2
|
Birgin E, Hempel S, Reeg A, Oehme F, Schnizer A, Rink JS, Froelich MF, Hetjens S, Plodeck V, Nebelung H, Abdelhadi S, Rahbari M, Téoule P, Rasbach E, Reissfelder C, Weitz J, Schoenberg SO, Distler M, Rahbari NN. Development and Validation of a Model for Postpancreatectomy Hemorrhage Risk. JAMA Netw Open 2023; 6:e2346113. [PMID: 38055279 DOI: 10.1001/jamanetworkopen.2023.46113] [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] [Indexed: 12/07/2023] Open
Abstract
Importance Postpancreatectomy hemorrhage (PPH) due to postoperative pancreatic fistula (POPF) is a life-threatening complication after pancreatoduodenectomy. However, there is no prediction tool for early identification of patients at high risk of late PPH. Objective To develop and validate a prediction model for PPH. Design, Setting, and Participants This retrospective prognostic study included consecutive patients with clinically relevant POPF who underwent pancreatoduodenectomy from January 1, 2009, to May 20, 2023, at the University Hospital Mannheim (derivation cohort), and from January 1, 2012, to May 31, 2022, at the University Hospital Dresden (validation cohort). Data analysis was performed from May 30 to July 29, 2023. Exposure Clinical and radiologic features of PPH. Main Outcomes and Measures Accuracy of a predictive risk score of PPH. A multivariate prediction model-the hemorrhage risk score (HRS)-was established in the derivation cohort (n = 139) and validated in the validation cohort (n = 154). Results A total of 293 patients (187 [64%] men; median age, 69 [IQR, 60-76] years) were included. The HRS comprised 4 variables with associations: sentinel bleeding (odds ratio [OR], 35.10; 95% CI, 5.58-221.00; P < .001), drain fluid culture positive for Candida species (OR, 14.40; 95% CI, 2.24-92.20; P < .001), and radiologic proof of rim enhancement of (OR, 12.00; 95% CI, 2.08-69.50; P = .006) or gas within (OR, 12.10; 95% CI, 2.22-65.50; P = .004) a peripancreatic fluid collection. Two risk categories were identified with patients at low risk (0-1 points) and high risk (≥2 points) to develop PPH. Patients with PPH were predicted accurately in the derivation cohort (C index, 0.97) and validation cohort (C index 0.83). The need for more invasive PPH management (74% vs 34%; P < .001) and severe complications (49% vs 23%; P < .001) were more frequent in high-risk patients compared with low-risk patients. Conclusions and Relevance In this retrospective prognostic study, a robust prediction model for PPH was developed and validated. This tool may facilitate early identification of patients at high risk for PPH.
Collapse
Affiliation(s)
- Emrullah Birgin
- Department of Surgery, Universitätsmedizin Mannheim, Medical Faculty Mannheim, Heidelberg University, Mannheim, Germany
- Department of General and Visceral Surgery, Ulm University Hospital, Ulm, Germany
| | - Sebastian Hempel
- Department of Visceral, Thoracic and Vascular Surgery, Faculty of Medicine and University Hospital Carl Gustav Carus, Technische Universität Dresden, Dresden, Germany
| | - Alina Reeg
- Department of Surgery, Universitätsmedizin Mannheim, Medical Faculty Mannheim, Heidelberg University, Mannheim, Germany
| | - Florian Oehme
- Department of Visceral, Thoracic and Vascular Surgery, Faculty of Medicine and University Hospital Carl Gustav Carus, Technische Universität Dresden, Dresden, Germany
| | - Annika Schnizer
- Department of Surgery, Universitätsmedizin Mannheim, Medical Faculty Mannheim, Heidelberg University, Mannheim, Germany
| | - Johann S Rink
- Department of Radiology and Nuclear Medicine, University Medical Centre Mannheim, Heidelberg University, Mannheim, Germany
| | - Matthias F Froelich
- Department of Radiology and Nuclear Medicine, University Medical Centre Mannheim, Heidelberg University, Mannheim, Germany
| | - Svetlana Hetjens
- Department of Medical Statistics and Biomathematics, Medical Faculty Mannheim, Heidelberg University, Mannheim, Germany
| | - Verena Plodeck
- Department of Radiology, Faculty of Medicine and University Hospital Carl Gustav Carus, Technische Universität Dresden, Dresden, Germany
| | - Heiner Nebelung
- Department of Radiology, Faculty of Medicine and University Hospital Carl Gustav Carus, Technische Universität Dresden, Dresden, Germany
| | - Schaima Abdelhadi
- Department of Surgery, Universitätsmedizin Mannheim, Medical Faculty Mannheim, Heidelberg University, Mannheim, Germany
| | - Mohammad Rahbari
- Department of Surgery, Universitätsmedizin Mannheim, Medical Faculty Mannheim, Heidelberg University, Mannheim, Germany
| | - Patrick Téoule
- Department of Surgery, Universitätsmedizin Mannheim, Medical Faculty Mannheim, Heidelberg University, Mannheim, Germany
| | - Erik Rasbach
- Department of Surgery, Universitätsmedizin Mannheim, Medical Faculty Mannheim, Heidelberg University, Mannheim, Germany
| | - Christoph Reissfelder
- Department of Surgery, Universitätsmedizin Mannheim, Medical Faculty Mannheim, Heidelberg University, Mannheim, Germany
| | - Jürgen Weitz
- Department of Visceral, Thoracic and Vascular Surgery, Faculty of Medicine and University Hospital Carl Gustav Carus, Technische Universität Dresden, Dresden, Germany
| | - Stefan O Schoenberg
- Department of Radiology and Nuclear Medicine, University Medical Centre Mannheim, Heidelberg University, Mannheim, Germany
| | - Marius Distler
- Department of Visceral, Thoracic and Vascular Surgery, Faculty of Medicine and University Hospital Carl Gustav Carus, Technische Universität Dresden, Dresden, Germany
| | - Nuh N Rahbari
- Department of Surgery, Universitätsmedizin Mannheim, Medical Faculty Mannheim, Heidelberg University, Mannheim, Germany
- Department of General and Visceral Surgery, Ulm University Hospital, Ulm, Germany
| |
Collapse
|
3
|
Ono Y, Inoue Y, Kato T, Kobayashi K, Takamatsu M, Atsushi O, Sato T, Ito H, Takahashi Y. New approach of circumferential lymph node dissection around the superior mesenteric artery for pancreatic cancer during pancreaticoduodenectomy (with video). Langenbecks Arch Surg 2023; 408:422. [PMID: 37910224 DOI: 10.1007/s00423-023-03159-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2023] [Accepted: 10/18/2023] [Indexed: 11/03/2023]
Abstract
PURPOSE Various approaches have been reported for the resection of the nervous and lymphatic tissues around the superior mesenteric artery (SMA) during pancreaticoduodenectomy (PD) for pancreatic cancer. We developed a new procedure for circumferential lymph node dissection around the SMA to minimize local recurrence. METHODS We included 24 patients who underwent PD with circumferential lymph node dissection around the SMA (circumferential dissection) and 94 patients who underwent classical mesopancreatic dissection (classical dissection) between 2019 and 2021. The technical details of this new method are described in the figures and videos, and the clinical characteristics and outcomes of this technique were compared with those of classical dissection. RESULTS The median follow-up durations in the circumferential and classical dissection groups were 39 and 36 months, respectively. The patients' characteristics, including tumor resectability, preoperative and adjuvant chemotherapy rates, postoperative complication rates, and tumor stage, were similar between the two groups. No differences were observed in recurrence-free survival and overall survival between the two groups; however, the classical dissection group tended to have more local recurrences than the circumferential dissection group (8.3% vs. 33.3%, P = 0.168). Although no case of nodular-type recurrence after circumferential dissection was observed, 61.1% of local recurrences after classical dissection were of the nodular-type, and 36.4% were located on the left side of the SMA. CONCLUSIONS Performing circumferential lymph node dissection around the SMA during PD can be conducted safely with minimal risks of local recurrence and may enhance the completeness of local resection.
Collapse
Affiliation(s)
- Yoshihiro Ono
- Division of Hepatobiliary and Pancreatic Surgery, Cancer Institute Hospital, Japanese Foundation for Cancer Research, 3-8-31 Ariake, Koto-Ku, Tokyo, 1358550, Japan
| | - Yosuke Inoue
- Division of Hepatobiliary and Pancreatic Surgery, Cancer Institute Hospital, Japanese Foundation for Cancer Research, 3-8-31 Ariake, Koto-Ku, Tokyo, 1358550, Japan
| | - Tomotaka Kato
- Division of Hepatobiliary and Pancreatic Surgery, Cancer Institute Hospital, Japanese Foundation for Cancer Research, 3-8-31 Ariake, Koto-Ku, Tokyo, 1358550, Japan
| | - Kosuke Kobayashi
- Division of Hepatobiliary and Pancreatic Surgery, Cancer Institute Hospital, Japanese Foundation for Cancer Research, 3-8-31 Ariake, Koto-Ku, Tokyo, 1358550, Japan
| | - Manabu Takamatsu
- Department of Pathology, Cancer Institute Hospital, Japanese Foundation for Cancer Research, 3-8-31 Ariake, Koto-Ku, Tokyo, 1358550, Japan
| | - Oba Atsushi
- Division of Hepatobiliary and Pancreatic Surgery, Cancer Institute Hospital, Japanese Foundation for Cancer Research, 3-8-31 Ariake, Koto-Ku, Tokyo, 1358550, Japan
| | - Takafumi Sato
- Division of Hepatobiliary and Pancreatic Surgery, Cancer Institute Hospital, Japanese Foundation for Cancer Research, 3-8-31 Ariake, Koto-Ku, Tokyo, 1358550, Japan
| | - Hiromichi Ito
- Division of Hepatobiliary and Pancreatic Surgery, Cancer Institute Hospital, Japanese Foundation for Cancer Research, 3-8-31 Ariake, Koto-Ku, Tokyo, 1358550, Japan
| | - Yu Takahashi
- Division of Hepatobiliary and Pancreatic Surgery, Cancer Institute Hospital, Japanese Foundation for Cancer Research, 3-8-31 Ariake, Koto-Ku, Tokyo, 1358550, Japan.
| |
Collapse
|
4
|
Rastogi A, Ashwini NS, Rath I, Bihari C, Sasturkar SV, Pamecha V. Utility and diagnostic accuracy of intraoperative frozen sections in hepato-pancreato-biliary surgical pathology. Langenbecks Arch Surg 2023; 408:390. [PMID: 37814143 DOI: 10.1007/s00423-023-03124-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2022] [Accepted: 09/27/2023] [Indexed: 10/11/2023]
Abstract
BACKGROUND AND PURPOSE Hepato-pancreato-biliary (HPB) surgeries are one of the most challenging and complex procedures. Intraoperative frozen section (IFS) diagnosis plays a pivotal role in management decisions. Comprehensive large cohort studies evaluating utility of IFS in HPB malignancies are lacking. This study aimed to evaluate the accuracy of frozen section analysis and to analyse discrepancies and impact of IFS on the surgical decisions. PATIENTS AND METHODS This was a retrospective study of IFS received for the HPB specimens between years 2009 and 2021. The results were compared to the permanent sections to evaluate diagnostic accuracy, sensitivity and specificity. Indications, disagreements and impact on the surgical management were analysed. RESULTS A total of 1008 specimens were evaluated: bile duct margin (279; 27.7%), gallbladder (203; 20.1%), liver lesions (125 cases; 12.4%), lymph nodes (147; 14.6%), pancreatic margin (120; 11.9%) and deposits (134; 13.3%). IFS were diagnosed as negative for malignancy (805; 79.9%), positive for dysplasia (8; 0.8%), suspicious for malignancy (6; 0.6%) and positive for malignancy (189; 18.8%). The overall diagnostic accuracy was 98.4%, and the discordant rate was 1.6%. The sensitivity, specificity, positive predictive value and negative predictive value were 94.7%, 99.4%, 97.5% and 98.6% respectively. The most important reason of discordant results was technical, followed by interpretational and sampling errors. CONCLUSION The study demonstrates high diagnostic accuracy (98.4%) of IFS in a large dataset of HPB specimens. This comprehensive analysis apprises of the indications, errors and the impact of IFS diagnosis on subsequent HPB surgical management.
Collapse
Affiliation(s)
- Archana Rastogi
- Institute of Liver & Biliary Sciences, D-1 Vasant Kunj, Delhi, 110070, India.
| | - N S Ashwini
- Institute of Liver & Biliary Sciences, D-1 Vasant Kunj, Delhi, 110070, India
| | - Indira Rath
- Institute of Liver & Biliary Sciences, D-1 Vasant Kunj, Delhi, 110070, India
| | - Chhagan Bihari
- Institute of Liver & Biliary Sciences, D-1 Vasant Kunj, Delhi, 110070, India
| | | | - Viniyendra Pamecha
- Institute of Liver & Biliary Sciences, D-1 Vasant Kunj, Delhi, 110070, India
| |
Collapse
|
5
|
Kuriyama N, Maeda K, Shinkai T, Ito T, Gyoten K, Hayasaki A, Fujii T, Iizawa Y, Murata Y, Tanemura A, Kishiwada M, Nagata M, Ichikawa S, Mizuno S. Anterior versus posterior radical antegrade modular pancreatosplenectomy for pancreatic body and tail cancer: an inverse probability of treatment weighting with survival analysis. Surg Today 2023:10.1007/s00595-023-02651-7. [PMID: 36943448 DOI: 10.1007/s00595-023-02651-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2022] [Accepted: 12/08/2022] [Indexed: 03/23/2023]
Abstract
PURPOSE Radical antegrade modular pancreatosplenectomy (RAMPS) is a standard procedure for patients with pancreatic body and tail cancer. There are two types of RAMPS: anterior and posterior, but their indications and surgical outcomes remain unclear. We compared the surgical outcomes, postoperative course, and prognosis between anterior and posterior RAMPS. METHODS Between 2007 and 2020, 105 consecutive patients who underwent RAMPS for pancreatic body and tail cancers were divided into an anterior RAMPS group (n = 30) and a posterior RAMPS group (n = 75). To adjust for differences in preoperative characteristics and intraoperative procedures, an inverse probability of treatment weighting (IPTW) analysis was done, using propensity scores. RESULTS After IPTW adjustment, the postoperative body temperature of the posterior RAMPS group and the amount of drain discharge in the anterior RAMPS group were significantly lower, from postoperative days (PODs) 1 to 3, but there were no differences in postoperative complications, recurrence patterns, or prognosis between the two groups. Regarding the diagnostic ability of multidetector-row computed tomography (MD-CT) for direct tumor involvement of the left adrenal gland, the sensitivity and specificity were 100% and 90.0%, respectively. CONCLUSION Pancreatic body and tail cancer without apparent preoperative direct tumor involvement of the left adrenal gland on MD-CT may be sufficient indication for anterior RAMPS.
Collapse
Affiliation(s)
- Naohisa Kuriyama
- Department of Hepatobiliary Pancreatic and Transplant Surgery, Mie University School of Medicine, 2-174 Edobashi, Tsu, Mie, 514-8507, Japan.
| | - Koki Maeda
- Department of Hepatobiliary Pancreatic and Transplant Surgery, Mie University School of Medicine, 2-174 Edobashi, Tsu, Mie, 514-8507, Japan
| | - Toru Shinkai
- Department of Hepatobiliary Pancreatic and Transplant Surgery, Mie University School of Medicine, 2-174 Edobashi, Tsu, Mie, 514-8507, Japan
| | - Takahiro Ito
- Department of Hepatobiliary Pancreatic and Transplant Surgery, Mie University School of Medicine, 2-174 Edobashi, Tsu, Mie, 514-8507, Japan
| | - Kazuyuki Gyoten
- Department of Hepatobiliary Pancreatic and Transplant Surgery, Mie University School of Medicine, 2-174 Edobashi, Tsu, Mie, 514-8507, Japan
| | - Aoi Hayasaki
- Department of Hepatobiliary Pancreatic and Transplant Surgery, Mie University School of Medicine, 2-174 Edobashi, Tsu, Mie, 514-8507, Japan
| | - Takehiro Fujii
- Department of Hepatobiliary Pancreatic and Transplant Surgery, Mie University School of Medicine, 2-174 Edobashi, Tsu, Mie, 514-8507, Japan
| | - Yusuke Iizawa
- Department of Hepatobiliary Pancreatic and Transplant Surgery, Mie University School of Medicine, 2-174 Edobashi, Tsu, Mie, 514-8507, Japan
| | - Yasuhiro Murata
- Department of Hepatobiliary Pancreatic and Transplant Surgery, Mie University School of Medicine, 2-174 Edobashi, Tsu, Mie, 514-8507, Japan
| | - Akihiro Tanemura
- Department of Hepatobiliary Pancreatic and Transplant Surgery, Mie University School of Medicine, 2-174 Edobashi, Tsu, Mie, 514-8507, Japan
| | - Masashi Kishiwada
- Department of Hepatobiliary Pancreatic and Transplant Surgery, Mie University School of Medicine, 2-174 Edobashi, Tsu, Mie, 514-8507, Japan
| | - Motonori Nagata
- Department of Radiology, Mie University School of Medicine, Tsu, Mie, Japan
| | - Shuhei Ichikawa
- Department of General Medicine, Mie University School of Medicine, Tsu, Mie, Japan
| | - Shugo Mizuno
- Department of Hepatobiliary Pancreatic and Transplant Surgery, Mie University School of Medicine, 2-174 Edobashi, Tsu, Mie, 514-8507, Japan
| |
Collapse
|
6
|
Holmberg M, Radkiewicz C, Strömberg C, Öman M, Ghorbani P, Löhr JM, Sparrelid E. Outcome after surgery for invasive intraductal papillary mucinous neoplasia compared to conventional pancreatic ductal adenocarcinoma - A Swedish nationwide register-based study. Pancreatology 2023; 23:90-97. [PMID: 36522260 DOI: 10.1016/j.pan.2022.12.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/20/2022] [Revised: 10/08/2022] [Accepted: 12/07/2022] [Indexed: 01/11/2023]
Abstract
BACKGROUND The clinical importance of intraductal papillary mucinous neoplasm (IPMN) have increased last decades. Long-term survival after resection for invasive IPMN (inv-IPMN) compared to conventional pancreatic ductal adenocarcinoma (PDAC) is not thoroughly delineated. OBJECTIVE This study, based on the Swedish national pancreatic and periampullary cancer registry aims to elucidate the outcome after resection of inv-IPMN compared to PDAC. METHODS All patients ≥18 years of age resected for inv-IPMN and PDAC in Sweden between 2010 and 2019 were included. Clinicopathological variables were retrieved from the national registry. The effect on death was assessed in two multivariable Cox regression models, one for patients resected 2010-2015, one for patients resected 2016-2019. Median overall survival (OS) was estimated using the Kaplan-Meier method. RESULTS We included 1909 patients, 293 inv-IPMN and 1616 PDAC. The most important independent predictors of death in multivariable Cox regressions were CA19-9 levels, venous resection, tumour differentiation, as well as T-, N-, M-stage and surgical margin. Tumour type was an independent predictor for death in the 2016-2019 cohort, but not in the 2010-2015 cohort. In Kaplan-Meier survival analysis, inv-IPMN was associated with longer median OS in stage N0-1 and in stage M0 compared to PDAC. However, in stage T2-4 and stage N2 median OS was similar, and in stage M1 even shorter for inv-IPMN compared to PDAC. CONCLUSION In this population-based nationwide study, outcome after resected inv-IPMN compared to PDAC is more favourable in lower stages, and similar to worse in higher.
Collapse
Affiliation(s)
- Marcus Holmberg
- Department of Upper Digestive Diseases, Karolinska University Hospital and Department of Clinical Science, Intervention, and Technology, Karolinska Institute, Stockholm, Sweden.
| | - Cecilia Radkiewicz
- Department of Molecular Medicine and Surgery, Karolinska Institute, Stockholm, Sweden
| | - Cecilia Strömberg
- Department of Upper Digestive Diseases, Karolinska University Hospital and Department of Clinical Science, Intervention, and Technology, Karolinska Institute, Stockholm, Sweden
| | - Mikael Öman
- Department of Surgical and Perioperative Sciences, Surgery, Umeå University, Sweden
| | - Poya Ghorbani
- Department of Upper Digestive Diseases, Karolinska University Hospital and Department of Clinical Science, Intervention, and Technology, Karolinska Institute, Stockholm, Sweden
| | - J-Matthias Löhr
- Department of Upper Digestive Diseases, Karolinska University Hospital and Department of Clinical Science, Intervention, and Technology, Karolinska Institute, Stockholm, Sweden
| | - Ernesto Sparrelid
- Department of Upper Digestive Diseases, Karolinska University Hospital and Department of Clinical Science, Intervention, and Technology, Karolinska Institute, Stockholm, Sweden
| |
Collapse
|
7
|
Kelly KN, Macedo FI, Seaton M, Wilson G, Hammill C, Martin RC, Maduekwe UN, Kim HJ, Maithel SK, Abbott DE, Ahmad SA, Kooby DA, Merchant NB, Datta J. Intraoperative Pancreatic Neck Margin Assessment During Pancreaticoduodenectomy for Pancreatic Adenocarcinoma in the Era of Neoadjuvant Therapy: A Multi-institutional Analysis from the Central Pancreatic Consortium. Ann Surg Oncol 2022; 29:6004-6012. [PMID: 35511392 DOI: 10.1245/s10434-022-11804-w] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2021] [Accepted: 04/07/2022] [Indexed: 12/22/2022]
Abstract
BACKGROUND Data regarding the survival impact of converting frozen-section (FS):R1 pancreatic neck margins to permanent section (PS):R0 by additional resection (i.e., converted-R0) during upfront pancreaticoduodenectomy for pancreatic ductal adenocarcinoma (PDAC) are conflicting. The impact of neoadjuvant therapy on this practice and its relationship with overall survival (OS) is incompletely understood. METHODS We reviewed PDAC patients (80% borderline resectable/locally advanced [BR/LA]) undergoing pancreaticoduodenectomy after neoadjuvant therapy at seven, academic, high-volume centers (2010-2018). Multivariable models examined the association of PS:R0, PS:R1, and converted-R0 margins with OS. RESULTS Of 272 patients receiving at least 2 (median 4) cycles of neoadjuvant chemotherapy (71% mFOLFIRINOX or gemcitabine/nab-paclitaxel) and undergoing pancreaticoduodenectomy with intraoperative frozen-section assessment of the transected pancreatic neck margin, PS:R0 (n = 220, 80.9%) was observed in a majority of patients; 18 patients (6.6%) had converted-R0 margins following additional resection, whereas 34 patients (12.5%) had persistently positive PS:R1 margins. At a median follow-up of 42 months, PS:R0 resection was associated with improved OS compared with either converted-R0 or PS:R1 resection (median 25 vs. 14 vs. 16 months, respectively; p = 0.023), with no survival difference between the converted-R0 and PS:R1 groups (p = 0.9). On Cox regression, SMA margin positivity (hazard ratio 2.2, p = 0.012), but not neck margin positivity (hazard ratio 1.2, p = 0.65), was associated with worse OS. CONCLUSIONS In this multi-institutional cohort of predominantly BR/LA PDAC patients undergoing pancreaticoduodenectomy following modern neoadjuvant therapy, pursuing a negative neck margin intraoperatively if the initial margin is positive does not appear to be associated with improved survival.
Collapse
Affiliation(s)
- Kristin N Kelly
- Division of Surgical Oncology, Department of Surgery, University of Miami Miller School of Medicine, Sylvester Comprehensive Cancer Center, Miami, FL, USA
- Department of Surgery, Upstate Medical University, Syracuse, NY, USA
| | - Francisco I Macedo
- Division of Surgical Oncology, Department of Surgery, University of Miami Miller School of Medicine, Sylvester Comprehensive Cancer Center, Miami, FL, USA
- Department of Surgery, University of Central Florida, Gainesville, FL, USA
| | - Max Seaton
- Division of Surgical Oncology, Department of Surgery, University of Miami Miller School of Medicine, Sylvester Comprehensive Cancer Center, Miami, FL, USA
| | - Gregory Wilson
- Department of Surgery, University of Cincinnati, Cincinnati, OH, USA
| | - Chet Hammill
- Department of Surgery, Washington University in St. Louis, St. Louis, MO, USA
| | - Robert C Martin
- Department of Surgery, University of Louisville, Louisville, KY, USA
| | - Ugwuji N Maduekwe
- Department of Surgery, University of North Carolina, Chapel Hill, NC, USA
| | - Hong J Kim
- Department of Surgery, University of North Carolina, Chapel Hill, NC, USA
| | | | - Daniel E Abbott
- Department of Surgery, University of Wisconsin, Madison, WI, USA
| | - Syed A Ahmad
- Department of Surgery, University of Cincinnati, Cincinnati, OH, USA
| | - David A Kooby
- Department of Surgery, Emory University, Atlanta, GA, USA
| | - Nipun B Merchant
- Division of Surgical Oncology, Department of Surgery, University of Miami Miller School of Medicine, Sylvester Comprehensive Cancer Center, Miami, FL, USA
| | - Jashodeep Datta
- Division of Surgical Oncology, Department of Surgery, University of Miami Miller School of Medicine, Sylvester Comprehensive Cancer Center, Miami, FL, USA.
| |
Collapse
|
8
|
Teske C, Kahlert C, Welsch T, Liedel K, Weitz J, Uckermann O, Steiner G. Label-free differentiation of human pancreatic cancer, pancreatitis, and normal pancreatic tissue by molecular spectroscopy. JOURNAL OF BIOMEDICAL OPTICS 2022; 27:75001. [PMID: 36399853 PMCID: PMC9313287 DOI: 10.1117/1.jbo.27.7.075001] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/18/2021] [Accepted: 06/22/2022] [Indexed: 05/19/2023]
Abstract
SIGNIFICANCE Pancreatic ductal adenocarcinoma (PDAC) is one of the leading causes of cancer deaths with a best median survival of only 40 to 50 months for localized disease despite multimodal treatment. The standard tissue differentiation method continues to be pathology with histological staining analysis. Microscopic discrimination between inflammatory pancreatitis and malignancies is demanding. AIM We aim to accurately distinguish native pancreatic tissue using infrared (IR) spectroscopy in a fast and label-free manner. APPROACH Twenty cryopreserved human pancreatic tissue samples were collected from surgical resections. In total, more than 980,000 IR spectra were collected and analyzed using aMATLAB package. For differentiation of PDAC, pancreatitis, and normal tissue, a three-class training set for supervised classification was created with 25,000 spectra and the principal component analysis (PCA) score values for each cohort. Cross-validation was performed using the leaveone- out method. Validation of the algorithm was accomplished with 13 independent test samples. RESULTS Reclassification of the training set and the independent test samples revealed an overall accuracy of more than 90% using a discrimination algorithm. CONCLUSION IR spectroscopy in combination with PCA and supervised classification is an efficient analytical method to reliably distinguish between benign and malignant pancreatic tissues. It opens up a wide research field for oncological and surgical applications.
Collapse
Affiliation(s)
- Christian Teske
- University Hospital Carl Gustav Carus, Technische Universität Dresden, Department of Visceral, Thoracic and Vascular Surgery, Dresden, Germany
- National Center for Tumor Diseases (NCT/UCC), Dresden, Germany
- Address all correspondence to Christian Teske,
| | - Christoph Kahlert
- University Hospital Carl Gustav Carus, Technische Universität Dresden, Department of Visceral, Thoracic and Vascular Surgery, Dresden, Germany
- National Center for Tumor Diseases (NCT/UCC), Dresden, Germany
| | - Thilo Welsch
- University Hospital Carl Gustav Carus, Technische Universität Dresden, Department of Visceral, Thoracic and Vascular Surgery, Dresden, Germany
- National Center for Tumor Diseases (NCT/UCC), Dresden, Germany
| | - Katja Liedel
- University Hospital Carl Gustav Carus, Technische Universität Dresden, Department of Visceral, Thoracic and Vascular Surgery, Dresden, Germany
- National Center for Tumor Diseases (NCT/UCC), Dresden, Germany
| | - Jürgen Weitz
- University Hospital Carl Gustav Carus, Technische Universität Dresden, Department of Visceral, Thoracic and Vascular Surgery, Dresden, Germany
- National Center for Tumor Diseases (NCT/UCC), Dresden, Germany
| | - Ortrud Uckermann
- University Hospital Carl Gustav Carus, Department of Neurosurgery, Dresden, Germany
| | - Gerald Steiner
- Technische Universität Dresden, Department of Anaesthesiology and Critical Care Medicine, Clinical Sensoring and Monitoring, Faculty of Medicine, Dresden, Germany
| |
Collapse
|
9
|
Schmidt T, Belyaev O, Uhl W, Bruns CJ. [Surgical treatment of pancreatic cancer-What is new?]. Chirurg 2022; 93:446-452. [PMID: 35357553 DOI: 10.1007/s00104-022-01618-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/17/2022] [Indexed: 11/03/2022]
Abstract
The incidence of pancreatic ductal adenocarcinoma is continuously increasing and will become the second leading cause of cancer-related death in Europe and the USA by 2030. With a 5-year overall survival rate of less than 10% the prognosis remains poor. So far surgical tumor resection remains the only curative treatment option, which is now partially supported by multimodal neoadjuvant and adjuvant therapy concepts. Due to the aggressive tumor biology patients with advanced pancreatic cancer in particular can profit from these multimodal therapy concepts. Additionally, in recent years surgical treatment was optimized, the criteria for tumor resectablity were defined and minimally invasive surgery was widely introduced. This review article summarizes the newest developments and the new German S3 guidelines concerning surgery of pancreatic cancer.
Collapse
Affiliation(s)
- Thomas Schmidt
- Klinik und Poliklinik für Allgemein‑, Viszeral‑, Tumor- und Transplantationschirurgie, Uniklinik Köln, Kerpener Str. 62, 50937, Köln, Deutschland.
| | - Orlin Belyaev
- Klinik für Allgemein- und Viszeralchirurgie, St. Josef-Hospital, Universitätsklinikum, Ruhr-Universität Bochum, Bochum, Deutschland
| | - Waldemar Uhl
- Klinik für Allgemein- und Viszeralchirurgie, St. Josef-Hospital, Universitätsklinikum, Ruhr-Universität Bochum, Bochum, Deutschland
| | - Christiane J Bruns
- Klinik und Poliklinik für Allgemein‑, Viszeral‑, Tumor- und Transplantationschirurgie, Uniklinik Köln, Kerpener Str. 62, 50937, Köln, Deutschland
| |
Collapse
|
10
|
Brunner M, Krautz C, Weber GF, Grützmann R. [Better Therapy for Pancreatic Cancer through More Radical Surgery?]. Zentralbl Chir 2022; 147:173-187. [PMID: 35378558 DOI: 10.1055/a-1766-7643] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Despite advances in the treatment of pancreatic cancer, the survival of affected patients remains limited. A more radical surgical therapy could help to improve the prognosis, in particular by reducing the local recurrence rate, which is around 45% in patients with resected pancreatic cancer. In addition, patients with oligometastatic pancreatic cancer could also benefit from a more radical indication for surgery.Based on an analysis of the literature, important principles of pancreatic cancer surgery were examined.Even if even more radical surgical approaches such as an "extended" lymphadenectomy or a standard complete pancreatectomy do not bring any survival advantage, complete resection of the tumour (R0), a thorough locoregional lymphadenectomy and an adequate radical dissection in the area of the peripancreatic vessels including periarterial nerve plexuses should be the standard of pancreatic carcinoma resections. Whenever necessary to achieve an R0 resection, resections of the pancreas have to be extended, as well as additional venous vascular resections and multivisceral resections had to be performed. Simultaneous arterial vascular resections as part of pancreatic resections as well as surgical resections in oligometastatic patients should, however, be reserved for selected patients. These aspects of the surgical technique in pancreatic carcinoma mentioned above must not be neglected from the point of view of an "existing limited prognosis". On the contrary, they form the absolutely necessary basis in order to achieve good survival results in combination with system therapy. However, it may always be necessary to adapt these standards according to the age, comorbidities and wishes of the patient.
Collapse
Affiliation(s)
- Maximilian Brunner
- Klinik für Allgemein- und Viszeralchirurgie, Universitätsklinikum Erlangen, Erlangen, Deutschland
| | - Christian Krautz
- Klinik für Allgemein- und Viszeralchirurgie, Universitätsklinikum Erlangen, Erlangen, Deutschland
| | - Georg F Weber
- Klinik für Allgemein- und Viszeralchirurgie, Universitätsklinikum Erlangen, Erlangen, Deutschland
| | - Robert Grützmann
- Klinik für Allgemein- und Viszeralchirurgie, Universitätsklinikum Erlangen, Erlangen, Deutschland
| |
Collapse
|
11
|
Lee SE, Han SS, Kang CM, Kwon W, Paik KY, Song KB, Yang JD, Chung JC, Jeong CY, Kim SW. Korean Surgical Practice Guideline for Pancreatic Cancer 2021: A summary of evidence-based surgical approaches. Ann Hepatobiliary Pancreat Surg 2022; 26:1-16. [PMID: 35220285 PMCID: PMC8901981 DOI: 10.14701/ahbps.22-009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/03/2022] [Revised: 02/17/2022] [Accepted: 02/17/2022] [Indexed: 11/17/2022] Open
Abstract
Pancreatic cancer is the eighth most common cancer and the fifth most common cause of cancer-related deaths in Korea. Despite the increasing incidence and high mortality rate of pancreatic cancer, there are no appropriate surgical practice guidelines for the current domestic medical situation. To enable standardization of management and facilitate improvements in surgical outcome, a total of 10 pancreatic surgical experts who are members of Korean Association of Hepato-Biliary-Pancreatic Surgery have developed new recommendations that integrate the most up-to-date, evidence-based research findings and expert opinions. This is an English version of the Korean Surgical Practice Guideline for Pancreatic Cancer 2021. This guideline includes 13 surgical questions and 15 statements. Due to the lack of high-level evidence, strong recommendation is almost impossible. However, we believe that this guideline will help surgeons understand the current status of evidence and suggest what to investigate further to establish more solid recommendations in the future.
Collapse
Affiliation(s)
- Seung Eun Lee
- Department of Surgery, Chung-Ang University College of Medicine, Seoul, Korea
| | - Sung-Sik Han
- Department of Surgery, National Cancer Center, Goyang, Korea
| | - Chang Moo Kang
- Division of Hepatobiliary and Pancreatic Surgery, Department of Surgery, Yonsei University College of Medicine, Seoul, Korea
| | - Wooil Kwon
- Department of Surgery and Cancer Research Institute, Seoul National University College of Medicine, Seoul, Korea
| | - Kwang Yeol Paik
- Division of Hepatobiliary and Pancreatic Surgery and Liver Transplantation, Department of Surgery, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - Ki Byung Song
- Division of Hepatobiliary and Pancreatic Surgery, Department of Surgery, University of Ulsan College of Medicine, Seoul, Korea
| | - Jae Do Yang
- Department of Surgery, Jeonbuk National University Medical School, Jeonju, Korea
| | - Jun Chul Chung
- Department of Surgery, Soon Chun Hyang University School of Medicine, Cheonan, Korea
| | - Chi-Young Jeong
- Department of Surgery, Gyeongsang National University School of Medicine, Jinju, Korea
| | - Sun-Whe Kim
- Department of Surgery, National Cancer Center, Goyang, Korea
| | | |
Collapse
|
12
|
Shah MM, Datta J, Merchant NB, Kooby DA. Landmark Series: Importance of Pancreatic Resection Margins. Ann Surg Oncol 2022; 29:1542-1550. [PMID: 34985731 DOI: 10.1245/s10434-021-11168-7] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2021] [Accepted: 11/26/2021] [Indexed: 12/24/2022]
Abstract
An important goal of cancer surgery is to achieve negative surgical margins and remove all disease completely. For pancreatic neoplasms, microscopic margins may remain positive despite gross removal of the palpable mass, and surgeons must then consider extending resection, even to the point of completion pancreatectomy, an option that renders the patient with significant adverse effects related to exocrine and endocrine insufficiency. Counterintuitively, extending resection to ensure clear margins may not improve patient outcome. Furthermore, the goal of improving survival by extending the resection may not be achieved, as an initial positive margin may indicate more aggressive underlying tumor biology. There is a growing body of literature on this topic, and this landmark series review will examine the key publications that guide our management for resection of pancreatic ductal adenocarcinoma, intraductal papillary mucinous neoplasms, and pancreatic neuroendocrine tumors.
Collapse
Affiliation(s)
- Mihir M Shah
- Division of Surgical Oncology, Department of Surgery, Emory University School of Medicine, Winship Cancer Institute, Atlanta, GA, USA.
| | - Jashodeep Datta
- Division of Surgical Oncology, Department of Surgery, Sylvester Comprehensive Cancer Center, University of Miami Miller School of Medicine, Miami, FL, USA
| | - Nipun B Merchant
- Division of Surgical Oncology, Department of Surgery, Sylvester Comprehensive Cancer Center, University of Miami Miller School of Medicine, Miami, FL, USA
| | - David A Kooby
- Division of Surgical Oncology, Department of Surgery, Emory University School of Medicine, Winship Cancer Institute, Atlanta, GA, USA
| |
Collapse
|
13
|
Kitahata Y, Kawai M, Hirono S, Okada KI, Miyazawa M, Motobayashi H, Ueno M, Hayami S, Miyamoto A, Yamaue H. Circulating Tumor DNA as a Potential Prognostic Marker in Patients with Borderline-Resectable Pancreatic Cancer Undergoing Neoadjuvant Chemotherapy Followed by Pancreatectomy. Ann Surg Oncol 2021; 29:1596-1605. [PMID: 34724126 DOI: 10.1245/s10434-021-10985-0] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2021] [Accepted: 10/05/2021] [Indexed: 12/30/2022]
Abstract
BACKGROUND Circulating tumor DNA (ctDNA) might be a promising biomarker for pancreatic cancer in liquid biopsy. This study aimed to evaluate the usefulness of liquid biopsy for patients with borderline-resectable pancreatic cancer (BR-PC). METHODS Patients with BR-PC according to the National Comprehensive Cancer Network guidelines (2017) and eligible for neoadjuvant chemotherapy (NAC) followed by pancreatectomy were recruited at Wakayama Medical University Hospital (UMIN000026647) between March 2017 and April 2020. The study enrolled 55 patients with locally advanced PC, and each patient consented to inclusion in the study. The study investigated the relationship between KRAS status in ctDNA and clinicopathologic features, analyzing ctDNA at three time points: pretreatment, post-NAC, and post-operation. RESULTS Of the 55 enrolled patients with a diagnosis of BR-PC, 34 were scheduled to undergo pancreatectomy. From 27 patients with resected BR-PC, 81 blood samples were analyzed in triplicate for ctDNA. The patients with positive pretreatment and post-NAC ctDNA status had no significant decrease in median relapse-free survival (RFS) or overall survival (OS). However, the patients with positive postoperation ctDNA status had a significantly shorter median OS (723 days) than the patients with negative ctDNA results (not reached; P = 0.0148). A combined analysis of postoperative ctDNA and CA19-9 values showed the cumulative effect on both RFS (P = 0.0066) and OS (P = 0.0046). The adjusted hazard ratio for risk of survival computed for the patients carrying risk factors (either detectable ctDNA or CA19-9 > 37 U/ml) increased from 4.13-fold to 17.71-fold (both P = 0.0055) compared with the patients who had no risk factors. CONCLUSION Positive ctDNA predicts poor survival for patients with BR-PC who undergo NAC followed by pancreatectomy.
Collapse
Affiliation(s)
- Yuji Kitahata
- Second Department of Surgery, School of Medicine, Wakayama Medical University, Wakayama, Japan
| | - Manabu Kawai
- Second Department of Surgery, School of Medicine, Wakayama Medical University, Wakayama, Japan
| | - Seiko Hirono
- Second Department of Surgery, School of Medicine, Wakayama Medical University, Wakayama, Japan
| | - Ken-Ichi Okada
- Second Department of Surgery, School of Medicine, Wakayama Medical University, Wakayama, Japan
| | - Motoki Miyazawa
- Second Department of Surgery, School of Medicine, Wakayama Medical University, Wakayama, Japan
| | - Hideki Motobayashi
- Second Department of Surgery, School of Medicine, Wakayama Medical University, Wakayama, Japan
| | - Masaki Ueno
- Second Department of Surgery, School of Medicine, Wakayama Medical University, Wakayama, Japan
| | - Shinya Hayami
- Second Department of Surgery, School of Medicine, Wakayama Medical University, Wakayama, Japan
| | - Atsushi Miyamoto
- Second Department of Surgery, School of Medicine, Wakayama Medical University, Wakayama, Japan
| | - Hiroki Yamaue
- Second Department of Surgery, School of Medicine, Wakayama Medical University, Wakayama, Japan.
| |
Collapse
|
14
|
Zhang B, Lee GC, Qadan M, Fong ZV, Mino-Kenudson M, Desphande V, Malleo G, Maggino L, Marchegiani G, Salvia R, Scarpa A, Luchini C, De Gregorio L, Ferrone CR, Warshaw AL, Lillemoe KD, Bassi C, Castillo CFD. Revision of Pancreatic Neck Margins Based on Intraoperative Frozen Section Analysis Is Associated With Improved Survival in Patients Undergoing Pancreatectomy for Ductal Adenocarcinoma. Ann Surg 2021; 274:e134-e142. [PMID: 31851002 DOI: 10.1097/sla.0000000000003503] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
OBJECTIVE To test the hypothesis that complete, tumor-free resection at the pancreatic neck, achieved either en-bloc or non-en-bloc (ie, revision based on intraoperative frozen section [FS] analysis), is associated with improved survival as compared with incomplete resection (IR) in pancreatic ductal adenocarcinoma. SUMMARY BACKGROUND DATA Given the likely systemic nature of pancreatic ductal adenocarcinoma, the oncologic benefit of achieving a histologically complete local resection, particularly through revision of a positive intraoperative FS at the pancreatic neck, remains controversial. METHODS Clinicopathologic and treatment data were reviewed for 986 consecutive patients with ductal adenocarcinoma at the head, neck, or uncinate process of the pancreas who underwent open pancreatectomy as well as intraoperative FS analysis between 1998 and 2012 at Massachusetts General Hospital and between 1998 and 2013 at the University of Verona. Overall survival (OS) and perioperative morbidity and mortality were compared across 3 groups: complete resection achieved en-bloc (CR-EB), complete resection achieved non-en-bloc (CR-NEB), and IR. RESULTS The CR-EB cohort comprised 749 (76%) patients, CR-NEB 159 patients (16%), and IR 78 patients (8%). Other than a higher incidence of vascular resection among CR-NEB and IR patients, no demographic, pathologic (eg, tumor grade, lymph node positivity, superior mesenteric artery involvement), or treatment factors (eg, neoadjuvant and adjuvant therapy use) differed between the groups. Median OS was significantly higher in patients with CR-EB (28 mo, P = 0.01) and CR-NEB resections (24 mo, P = 0.02) as compared with patients with IR resections (19 mo). After adjusting for clinicopathologic and treatment characteristics, CR-EB and CR-NEB margin status were found to be independent predictors of improved OS (relative to IR, CR-EB hazard ratio [HR] 0.65, 95% confidence interval [CI] 0.49-0.86; CR-NEB HR 0.69, 95% CI 0.50-0.96). There were no intergroup differences in perioperative morbidity and mortality, including rates of pancreatic fistula. CONCLUSIONS For patients with ductal adenocarcinoma at the head, neck, or uncinate process of the pancreas undergoing pancreatectomy, complete tumor extirpation via either en-bloc or non-en-bloc complete resection based on FS analysis is associated with improved OS, without an associated increased perioperative morbidity or mortality.
Collapse
Affiliation(s)
- Biqi Zhang
- Department of Surgery, Massachusetts General Hospital, Harvard Medical School, Boston, MA
| | - Grace C Lee
- Department of Surgery, Massachusetts General Hospital, Harvard Medical School, Boston, MA
| | - Motaz Qadan
- Department of Surgery, Massachusetts General Hospital, Harvard Medical School, Boston, MA
| | - Zhi Ven Fong
- Department of Surgery, Massachusetts General Hospital, Harvard Medical School, Boston, MA
| | - Mari Mino-Kenudson
- Department of Pathology, Massachusetts General Hospital, Harvard Medical School, Boston, MA
| | - Vikram Desphande
- Department of Pathology, Massachusetts General Hospital, Harvard Medical School, Boston, MA
| | - Giuseppe Malleo
- Department of General and Pancreatic Surgery, The Pancreas Institute, University and Hospital of Verona Hospital Trust, Verona, Italy
| | - Laura Maggino
- Department of General and Pancreatic Surgery, The Pancreas Institute, University and Hospital of Verona Hospital Trust, Verona, Italy
| | - Giovanni Marchegiani
- Department of General and Pancreatic Surgery, The Pancreas Institute, University and Hospital of Verona Hospital Trust, Verona, Italy
| | - Roberto Salvia
- Department of General and Pancreatic Surgery, The Pancreas Institute, University and Hospital of Verona Hospital Trust, Verona, Italy
| | - Aldo Scarpa
- Applied Research on Cancer Centre (ARC-Net), University and Hospital Trust of Verona, Verona, Italy
- Department of Diagnostics and Public Health, Section of Pathology, University and Hospital Trust of Verona, Verona, Italy
| | - Claudio Luchini
- Department of Diagnostics and Public Health, Section of Pathology, University and Hospital Trust of Verona, Verona, Italy
| | - Lucia De Gregorio
- Multi-Organ Transplant Institute, Ochsner Clinic Foundation, New Orleans, LA
| | - Cristina R Ferrone
- Department of Surgery, Massachusetts General Hospital, Harvard Medical School, Boston, MA
| | - Andrew L Warshaw
- Department of Surgery, Massachusetts General Hospital, Harvard Medical School, Boston, MA
| | - Keith D Lillemoe
- Department of Surgery, Massachusetts General Hospital, Harvard Medical School, Boston, MA
| | - Claudio Bassi
- Department of General and Pancreatic Surgery, The Pancreas Institute, University and Hospital of Verona Hospital Trust, Verona, Italy
| | | |
Collapse
|
15
|
Crippa S, Belfiori G, Tamburrino D, Partelli S, Falconi M. Indications to total pancreatectomy for positive neck margin after partial pancreatectomy: a review of a slippery ground. Updates Surg 2021; 73:1219-1229. [PMID: 34331677 DOI: 10.1007/s13304-021-01141-0] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2021] [Accepted: 07/23/2021] [Indexed: 12/23/2022]
Abstract
The extension of a partial pancreatectomy up to total pancreatectomy because of positive neck margin examined at intraoperative frozen section (IFS) analysis is an accepted procedure in modern pancreatic surgery with good accuracy. The goal of this practice is to improve the rate of radical (R0) resection in malignant tumors, mainly pancreatic ductal adenocarcinoma (PDAC), and to completely resect pre-invasive neoplasms such as intraductal papillary mucinous neoplasms (IPMNs). In the setting of IPMNs there is a consensus for pancreatic re-resection when high-grade dysplasia and invasive cancer are present at the neck margin. The presence of denudation is another indication for further resection in IPMNs. The role of IFS analysis in the management of pancreatic cancer is more debated. The presence of a positive intraoperative transection margin can be considered the surrogate of a biologically aggressive disease associated with a poorer prognosis. There are conflicting data regarding possible advantages of pancreatic re-resection up to total pancreatectomy, and the lack of randomized trials comparing different strategies does not offer a definitive answer. The goal of this review is to provide an up-to-date overview of the role IFS analysis of pancreatic margin and of pancreatic re-resection up to total pancreatectomy considering different pancreatic tumors.
Collapse
Affiliation(s)
- Stefano Crippa
- School of Medicine, Vita Salute San Raffaele University, Milan, Italy.,Division of Pancreatic Surgery, IRCCS Ospedale San Raffaele, Milan, Italy
| | - Giulio Belfiori
- School of Medicine, Vita Salute San Raffaele University, Milan, Italy.,Division of Pancreatic Surgery, IRCCS Ospedale San Raffaele, Milan, Italy
| | | | - Stefano Partelli
- School of Medicine, Vita Salute San Raffaele University, Milan, Italy.,Division of Pancreatic Surgery, IRCCS Ospedale San Raffaele, Milan, Italy
| | - Massimo Falconi
- School of Medicine, Vita Salute San Raffaele University, Milan, Italy. .,Division of Pancreatic Surgery, IRCCS Ospedale San Raffaele, Milan, Italy. .,Department of Surgery, Division of Pancreatic Surgery, San Raffaele Scientific Institute, Via Olgettina 60, 20132, Milan, Italy.
| |
Collapse
|
16
|
Reconsideration of the Appropriate Dissection Range Based on Japanese Anatomical Classification for Resectable Pancreatic Head Cancer in the Era of Multimodal Treatment. Cancers (Basel) 2021; 13:cancers13143605. [PMID: 34298818 PMCID: PMC8303207 DOI: 10.3390/cancers13143605] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2021] [Revised: 07/06/2021] [Accepted: 07/15/2021] [Indexed: 12/11/2022] Open
Abstract
Patients with resectable pancreatic cancer are considered to already have micro-distant metastasis, because most of the recurrence patterns postoperatively are distant metastases. Multimodal treatment dramatically improves prognosis; thus, micro-distant metastasis is considered to be controlled by chemotherapy. The survival benefit of "regional lymph node dissection" for pancreatic head cancer remains unclear. We reviewed the literature that could be helpful in determining the appropriate resection range. Regional lymph nodes with no suspected metastases on preoperative imaging may become areas treated with preoperative and postoperative adjuvant chemotherapy. Many studies have reported that the R0 resection rate is associated with prognosis. Thus, "dissection to achieve R0 resection" is required. The recent development of high-quality computed tomography has made it possible to evaluate the extent of cancer infiltration. Therefore, it is possible to simulate the dissection range to achieve R0 resection preoperatively. However, it is often difficult to distinguish between areas of inflammatory changes and cancer infiltration during resection. Even if the "dissection to achieve R0 resection" range is simulated based on the computed tomography evaluation, it is difficult to identify the range intraoperatively. It is necessary to be aware of anatomical landmarks to determine the appropriate dissection range during surgery.
Collapse
|
17
|
Datta J, Willobee BA, Ryon EL, Shah MM, Drebin JA, Kooby DA, Merchant NB. Contemporary Reappraisal of Intraoperative Neck Margin Assessment During Pancreaticoduodenectomy for Pancreatic Ductal Adenocarcinoma: A Review. JAMA Surg 2021; 156:489-495. [PMID: 33533898 DOI: 10.1001/jamasurg.2020.5676] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Importance Although margin-negative (R0) resection is the gold standard for surgical management of localized pancreatic ductal adenocarcinoma (PDAC), the question of how to manage the patient with a microscopically positive intraoperative neck margin (IONM) during pancreaticoduodenectomy remains controversial. Observations In the absence of randomized clinical trials, we critically evaluated high-quality retrospective studies examining the oncologic utility of re-resecting positive IONMs during pancreaticoduodenectomy for PDAC (2000-2019). Several studies have concluded that additional pancreatic resection to achieve an R0 margin in IONM-positive cases does not influence survival. The largest is a multi-institutional study of 1399 patients undergoing pancreaticoduodenectomy, which demonstrated that in comparison with patients undergoing R0 resection (n = 1196; median survival, 21 months), those with either final R1 resections (n = 131) or undergoing margin conversion from IONM-positive to R0 resection on permanent section (n = 72) demonstrated similar median survival times (13.7 and 11.9 months, respectively). Conversely, recent reports suggest that the conversion of IONM to R0 resection with additional resection or even total pancreatectomy may be associated with improved survival. The discordance between these conflicting studies could be explained in part by the influence of biologic and physiologic selection on the association of IONM re-resection and survival. Since most studies did not include patients receiving modern combination chemotherapy regimens, the intersection between margin status, tumor biology, and chemoresponsiveness remains unclear. Furthermore, there are no dedicated data to guide surgical management in IONM-positive pancreaticoduodenectomy for patients receiving neoadjuvant chemotherapy. Conclusions and Relevance Although data regarding the oncologic utility of additional resection to achieve a tumor-free margin following initial IONM positivity during pancreaticoduodenectomy for PDAC are conflicting, they suggest that IONM positivity may be a surrogate for biologic aggressiveness that is unlikely to be mitigated by the extent of surgical resection. The complex relationship between margin status and chemoresponsiveness warrants exploration in studies including patients receiving increasingly effective neoadjuvant chemotherapy.
Collapse
Affiliation(s)
- Jashodeep Datta
- Division of Surgical Oncology, Department of Surgery, University of Miami Miller School of Medicine, Miami, Florida.,Sylvester Comprehensive Cancer Center, Miami, Florida
| | - Brent A Willobee
- Division of Surgical Oncology, Department of Surgery, University of Miami Miller School of Medicine, Miami, Florida
| | - Emily L Ryon
- Division of Surgical Oncology, Department of Surgery, University of Miami Miller School of Medicine, Miami, Florida
| | - Mihir M Shah
- Winship Cancer Institute, Department of Surgery, Emory University School of Medicine, Atlanta, Georgia
| | - Jeffrey A Drebin
- Department of Surgery, Memorial Sloan Kettering Cancer Center, New York, New York
| | - David A Kooby
- Winship Cancer Institute, Department of Surgery, Emory University School of Medicine, Atlanta, Georgia
| | - Nipun B Merchant
- Division of Surgical Oncology, Department of Surgery, University of Miami Miller School of Medicine, Miami, Florida.,Sylvester Comprehensive Cancer Center, Miami, Florida
| |
Collapse
|
18
|
Chavez JA, Chen W, Freitag CE, Frankel WL. Pancreatic Frozen Section Guides Operative Management With Few Deferrals and Errors. Arch Pathol Lab Med 2021; 146:84-91. [PMID: 33769446 DOI: 10.5858/arpa.2020-0483-oa] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/05/2021] [Indexed: 11/06/2022]
Abstract
CONTEXT.— Pancreatic adenocarcinoma is the third leading cause of cancer death in the United States. Surgery remains the mainstay of treatment, and frozen section analysis is used to confirm diagnosis and determine resectability and margin status. OBJECTIVE.— To evaluate use and accuracy of frozen section and how diagnosis impacts surgical procedure. DESIGN.— We reviewed patients with planned pancreatic resections between January 2014 and March 2019 with at least 1 frozen section. Pathology reports including frozen sections, preoperative cytology, and operative notes were reviewed. Frozen sections were categorized by margin, primary pancreatic diagnosis, metastasis, or vascular resectability. The deferral and error rates and surgeons' response were noted. RESULTS.— We identified 898 planned pancreatic resections and 221 frozen sections that were performed on 152 cases for 102 margins, 94 metastatic lesions, 20 primary diagnoses, and 5 to confirm vascular resectability. The diagnosis was deferred to permanent sections in 13 of 152 cases (8.6%) on 16 of 221 frozen sections (7.2%): 6 for metastasis, 8 for margins, and 2 for primary diagnosis. Discrepancies/errors were identified in 4 of 152 cases (2.6%) and 4 of 221 frozen sections (1.8%). Surgeon's response was different than expected in 8 of 221 frozen sections (3.6%), but their actions were explained by other intraoperative findings in 6 of 8. CONCLUSIONS.— Frozen section remains an important diagnostic tool used primarily for evaluation of margins and metastasis during pancreatectomy. In most cases, a definitive diagnosis is rendered, with occasional deferrals and few errors. Intraoperative findings explain most cases where surgeons act differently than expected based on frozen section diagnosis.
Collapse
Affiliation(s)
- Jesus A Chavez
- From the Department of Pathology, The Ohio State University Wexner Medical Center, Columbus.,Chavez and Chen contributed equally to the work
| | - Wei Chen
- From the Department of Pathology, The Ohio State University Wexner Medical Center, Columbus.,Chavez and Chen contributed equally to the work
| | - C Eric Freitag
- From the Department of Pathology, The Ohio State University Wexner Medical Center, Columbus
| | - Wendy L Frankel
- From the Department of Pathology, The Ohio State University Wexner Medical Center, Columbus
| |
Collapse
|
19
|
Teske C, Stimpel R, Distler M, Merkel S, Grützmann R, Bolm L, Wellner U, Keck T, Aust DE, Weitz J, Welsch T. Impact of resection margin status on survival in advanced N stage pancreatic cancer - a multi-institutional analysis. Langenbecks Arch Surg 2021; 406:1481-1489. [PMID: 33712875 PMCID: PMC8370927 DOI: 10.1007/s00423-021-02138-4] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2020] [Accepted: 02/17/2021] [Indexed: 12/31/2022]
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.
Collapse
Affiliation(s)
- Christian Teske
- Department of Visceral, Thoracic and Vascular Surgery, University Hospital and Faculty of Medicine Carl Gustav Carus, Technische Universität Dresden, Dresden, Germany
| | - Richard Stimpel
- Department of Visceral, Thoracic and Vascular Surgery, University Hospital and Faculty of Medicine Carl Gustav Carus, Technische Universität Dresden, Dresden, Germany
| | - Marius Distler
- Department of Visceral, Thoracic and Vascular Surgery, University Hospital and Faculty of Medicine Carl Gustav Carus, Technische Universität Dresden, Dresden, Germany
| | - Susanne Merkel
- Department of General and Visceral Surgery, Friedrich Alexander University, Erlangen, Germany
| | - Robert Grützmann
- Department of General and Visceral Surgery, Friedrich Alexander University, Erlangen, Germany
| | - Louisa Bolm
- Department of Surgery, University Medical Centre Schleswig-Holstein, Campus Lübeck, Lübeck, Germany
| | - Ulrich Wellner
- Department of Surgery, University Medical Centre Schleswig-Holstein, Campus Lübeck, Lübeck, Germany
| | - Tobias Keck
- Department of Surgery, University Medical Centre Schleswig-Holstein, Campus Lübeck, Lübeck, Germany
| | - Daniela E Aust
- Institute of Pathology, University Hospital Carl Gustav Carus, Dresden, Germany
| | - Jürgen Weitz
- Department of Visceral, Thoracic and Vascular Surgery, University Hospital and Faculty of Medicine Carl Gustav Carus, Technische Universität Dresden, Dresden, Germany
| | - Thilo Welsch
- Department of Visceral, Thoracic and Vascular Surgery, University Hospital and Faculty of Medicine Carl Gustav Carus, Technische Universität Dresden, Dresden, Germany.
| |
Collapse
|
20
|
Prognostic Factors of Survival After Neoadjuvant Treatment and Resection for Initially Unresectable Pancreatic Cancer. Ann Surg 2021; 273:154-162. [PMID: 30921051 DOI: 10.1097/sla.0000000000003270] [Citation(s) in RCA: 78] [Impact Index Per Article: 26.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
OBJECTIVE To evaluate the impact of clinical and pathological parameters, including resection margin (R) status, on survival in patients undergoing pancreatic surgery after neoadjuvant treatment for initially unresectable pancreatic ductal adenocarcinoma (PDAC). BACKGROUND Prognostic factors are well documented for patients with resectable PDAC, but have not been described in detail for patients with initially unresectable PDAC undergoing resection after neoadjuvant therapy. METHODS Prospectively collected data of consecutive patients with initially unresectable pancreatic cancer treated by neoadjuvant treatment and resection were analyzed. The R status was categorized as R0 (tumor-free margin >1 mm), R1 ≤1 mm (tumor-free margin ≤1 mm), and R1 direct (microscopic tumor infiltration at margin). Clinicopathological characteristics and outcomes were compared among these groups and tested for survival prediction. RESULTS Between January, 2006 and February, 2017, 280 patients with borderline resectable (n = 18), locally advanced (n = 190), or oligometastatic (n = 72) disease underwent tumor resection after neoadjuvant treatment. Median overall survival from the time of surgery was 25.1 months for R0 (n = 82), 15.3 months for R1 ≤1 mm (n = 99), and 16.1 months for R1 direct (n = 99), with 3-year overall survival rates of 35.0%, 20.7%, and 18.5%, respectively (P = 0.0076). The median duration of the neoadjuvant treatment period was 5.1 months. In multivariable analysis, preoperative CA 19-9 levels, lymph node status, metastasis category, and vascular involvement were all significant prognostic factors for overall survival. The R status was not an independent prognostic factor. CONCLUSIONS In patients undergoing resection after neoadjuvant therapy for initially unresectable PDAC, preoperative CA 19-9 levels, lymph node involvement, metastasis category, and vascular involvement, but not the R status, were independent prognostic factors of overall survival.
Collapse
|
21
|
Crippa S, Ricci C, Guarneri G, Ingaldi C, Gasparini G, Partelli S, Casadei R, Falconi M. Improved survival after pancreatic re-resection of positive neck margin in pancreatic cancer patients. A systematic review and network meta-analysis. Eur J Surg Oncol 2021; 47:1258-1266. [PMID: 33487492 DOI: 10.1016/j.ejso.2021.01.001] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2020] [Revised: 12/06/2020] [Accepted: 01/01/2021] [Indexed: 12/16/2022] Open
Abstract
The oncological benefit of achieving a negative pancreatic neck margin through re-resection after a positive frozen section (FS) is debated. Aim of this network meta-analysis is to evaluate the survival benefit of re-resection after intraoperative FS neck margin examination following pancreatectomy for ductal adenocarcinoma. A systematic search of studies comparing different strategies for the management of positive FS was performed. Patients were classified in three groups based on FS and permanent section (PS): Group A (FS-, PS-R0), Group B (FS+, PS-R0), Group C (FS±, PS-R1). A frequent random-effects network-meta-analysis was made reporting the surface under the cumulative ranking (SUCRA). Primary endpoint was overall survival (OS). Secondary endpoints were pathological outcomes. Seven retrospectives studies with 4205 patients were included and 99.1% of the pancreatic resections were pancreatoduodenectomies. Group A had the highest probability of better OS (SUCRA = 90%), compared to Group B (SUCRA = 48.7%) and Group C, which was the worst prognostic scenario (SUCRA = 11.3%). Group B had still a probability of longer OS compared to Group C (SUCRA = 48.7% vs 11.3%). Pathological features were more favourable in Group A, with the highest SUCRA for T1-T2 tumors (92.6%), N0 status (89.4%), absence of perineural invasion (92.3%). Heterogeneity was low (τ-value <0.1) for OS, and moderate (τ-values: 0.1-0.6) for pT, pN, and perineural invasion. In conclusion, negative neck margin after primary resection (FS negative) or re-resection of a positive FS was associated with improved survival compared with PS-R1. However, any intraoperative positive FS can be considered as a prognostic factor associated with a more aggressive disease.
Collapse
Affiliation(s)
- Stefano Crippa
- Vita Salute San Raffaele University Milan, Italy; Division of Pancreatic Surgery, IRCCS San Raffaele Scientific Institute, Milan, Italy
| | - Claudio Ricci
- Department of Internal Medicine and Surgery (DIMEC), Alma Mater Studiorum, University of Bologna, Sant'Orsola Malpighi Hospital, Bologna, Italy.
| | - Giovanni Guarneri
- Division of Pancreatic Surgery, IRCCS San Raffaele Scientific Institute, Milan, Italy
| | - Carlo Ingaldi
- Department of Internal Medicine and Surgery (DIMEC), Alma Mater Studiorum, University of Bologna, Sant'Orsola Malpighi Hospital, Bologna, Italy
| | - Giulia Gasparini
- Vita Salute San Raffaele University Milan, Italy; Division of Pancreatic Surgery, IRCCS San Raffaele Scientific Institute, Milan, Italy
| | - Stefano Partelli
- Vita Salute San Raffaele University Milan, Italy; Division of Pancreatic Surgery, IRCCS San Raffaele Scientific Institute, Milan, Italy
| | - Riccardo Casadei
- Department of Internal Medicine and Surgery (DIMEC), Alma Mater Studiorum, University of Bologna, Sant'Orsola Malpighi Hospital, Bologna, Italy
| | - Massimo Falconi
- Vita Salute San Raffaele University Milan, Italy; Division of Pancreatic Surgery, IRCCS San Raffaele Scientific Institute, Milan, Italy
| |
Collapse
|
22
|
McIntyre CA, Zambirinis CP, Pulvirenti A, Chou JF, Gonen M, Balachandran VP, Kingham TP, D'Angelica MI, Brennan MF, Drebin JA, Jarnagin WR, Allen PJ. Detailed Analysis of Margin Positivity and the Site of Local Recurrence After Pancreaticoduodenectomy. Ann Surg Oncol 2021; 28:539-549. [PMID: 32451945 PMCID: PMC7918294 DOI: 10.1245/s10434-020-08600-9] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2019] [Indexed: 02/06/2023]
Abstract
BACKGROUND The association between a positive surgical margin and local recurrence after resection of pancreatic adenocarcinoma (PDAC) has been reported. Assessment of the location of the a positive margin and the specific site of local recurrence has not been well described. METHODS A prospectively maintained database was queried for patients who underwent R0/R1 pancreaticoduodenectomy for PDAC between 2000 and 2015. The pancreatic, posterior, gastric/duodenal, anterior peritoneal, and bile duct margins were routinely assessed. Postoperative imaging was reviewed for the site of first recurrence, and local recurrence was defined as recurrence located in the remnant pancreas, surgical bed, or retroperitoneal site outside the surgical bed. RESULTS During the study period, 891 patients underwent pancreaticoduodenectomy, and 390 patients had an initial local recurrence with or without distant metastases. The 5-year cumulative incidence of local recurrence by site included the remnant pancreas (4%; 95% confidence interval [CI], 3-5%), the surgical bed (35%; 95% CI, 32-39%), and other regional retroperitoneal site (4%; 95% CI, 3-6%). In the univariate analysis, positive posterior margin (hazard ratio [HR], 1.50; 95% CI, 1.17-1.91; p = 0.001) and positive lymph nodes (HR, 1.36; 95% CI, 1.06-1.75; p = 0.017) were associated with surgical bed recurrence, and in the multivariate analysis, positive posterior margin remained significant (HR, 1.40; 95% CI, 1.09-1.81; p = 0.009). An isolated local recurrence was found in 197 patients, and a positive posterior margin was associated with surgical bed recurrence in this subgroup (HR, 1.51; 95% CI, 1.08-2.10; p = 0.016). CONCLUSION In this study, the primary association between site of margin positivity and site of local recurrence was between the posterior margin and surgical bed recurrence. Given this association and the limited ability to modify this margin intraoperatively, preoperative assessment should be emphasized.
Collapse
Affiliation(s)
- Caitlin A McIntyre
- Department of Surgery, Hepatopancreatobiliary Service, Memorial Sloan Kettering, New York, NY, USA
| | | | - Alessandra Pulvirenti
- Department of Surgery, Hepatopancreatobiliary Service, Memorial Sloan Kettering, New York, NY, USA
| | - Joanne F Chou
- Department of Epidemiology and Biostatistics, Memorial Sloan Kettering, New York, NY, USA
| | - Mithat Gonen
- Department of Epidemiology and Biostatistics, Memorial Sloan Kettering, New York, NY, USA
| | - Vinod P Balachandran
- Department of Surgery, Hepatopancreatobiliary Service, Memorial Sloan Kettering, New York, NY, USA
| | - T Peter Kingham
- Department of Surgery, Hepatopancreatobiliary Service, Memorial Sloan Kettering, New York, NY, USA
| | - Michael I D'Angelica
- Department of Surgery, Hepatopancreatobiliary Service, Memorial Sloan Kettering, New York, NY, USA
| | - Murray F Brennan
- Department of Surgery, Hepatopancreatobiliary Service, Memorial Sloan Kettering, New York, NY, USA
| | - Jeffrey A Drebin
- Department of Surgery, Hepatopancreatobiliary Service, Memorial Sloan Kettering, New York, NY, USA
| | - William R Jarnagin
- Department of Surgery, Hepatopancreatobiliary Service, Memorial Sloan Kettering, New York, NY, USA
| | - Peter J Allen
- Department of Surgery, Hepatopancreatobiliary Service, Memorial Sloan Kettering, New York, NY, USA.
- Department of Surgery, Hepatopancreatobiliary Service, Duke University School of Medicine, Durham, NC, USA.
| |
Collapse
|
23
|
Birgin E, Rasbach E, Téoule P, Rückert F, Reissfelder C, Rahbari NN. Impact of intraoperative margin clearance on survival following pancreatoduodenectomy for pancreatic cancer: a systematic review and meta-analysis. Sci Rep 2020; 10:22178. [PMID: 33335201 PMCID: PMC7746710 DOI: 10.1038/s41598-020-79252-8] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2020] [Accepted: 12/03/2020] [Indexed: 12/13/2022] Open
Abstract
The use of intraoperative margin revision to achieve margin clearance in patients undergoing pancreatoduodenectomy for pancreatic cancer is controversial. We performed a systematic review and meta-analysis to summarize the evidence of intraoperative margin revisions of the pancreatic neck and its impact on overall survival (OS). Nine studies with 4501 patients were included. Patient cohort was stratified in an R0R0-group (negative margin on frozen and permanent section), R1R0-group (revised positive margin on frozen section which turned negative on permanent section), and R1R1-group (positive margin on frozen and permanent section despite margin revision). OS was higher in the R1R0-group (HR 0.83, 95% CI 0.72-0.96, P = 0.01) compared to the R1R1-group but lower compared to the R0R0-group (HR 1.20; 95% CI 1.05-1.37, P = 0.008), respectively. Subgroup analyses on the use of different margin clearance definitions confirmed an OS benefit in the R1R0-group compared to the R1R1-group (HR 0.81; 95% CI 0.65-0.99, P = 0.04). In conclusion, intraoperative margin clearance of the pancreatic neck margin is associated with improved OS while residual tumor indicates aggressive tumor biology. Consensus definitions on margin terminologies, clearance, and surgical techniques are required.
Collapse
Affiliation(s)
- Emrullah Birgin
- Department of Surgery, Universitätsmedizin Mannheim, Medical Faculty Mannheim, Heidelberg University, Theodor-Kutzer-Ufer 1-3, 68167, Mannheim, Germany
| | - Erik Rasbach
- Department of Surgery, Universitätsmedizin Mannheim, Medical Faculty Mannheim, Heidelberg University, Theodor-Kutzer-Ufer 1-3, 68167, Mannheim, Germany
| | - Patrick Téoule
- Department of Surgery, Universitätsmedizin Mannheim, Medical Faculty Mannheim, Heidelberg University, Theodor-Kutzer-Ufer 1-3, 68167, Mannheim, Germany
| | - Felix Rückert
- Department of Surgery, Universitätsmedizin Mannheim, Medical Faculty Mannheim, Heidelberg University, Theodor-Kutzer-Ufer 1-3, 68167, Mannheim, Germany
| | - Christoph Reissfelder
- Department of Surgery, Universitätsmedizin Mannheim, Medical Faculty Mannheim, Heidelberg University, Theodor-Kutzer-Ufer 1-3, 68167, Mannheim, Germany
| | - Nuh N Rahbari
- Department of Surgery, Universitätsmedizin Mannheim, Medical Faculty Mannheim, Heidelberg University, Theodor-Kutzer-Ufer 1-3, 68167, Mannheim, Germany.
| |
Collapse
|
24
|
Abstract
BACKGROUND In addition to the prognostically important systemic recurrence, a high rate of local recurrence is a relevant problem of pancreatic cancer surgery. Improvement of local control is a requirement for surgical resection as a prerequisite for a potentially curative treatment. OBJECTIVES Summary of the current evidence on frequency, relevance, and risk factors of local recurrence. Presentation of strategies for reduction of local recurrence with a special focus on surgical resection techniques. MATERIAL AND METHODS Analysis and appraisal of currently available scientific literature on the topic. RESULTS AND CONCLUSION Local recurrences occur as the first manifestation of tumor recurrence in 20-50% of patients after resection of pancreatic cancer. The considerable variations of reported local recurrence rates depend on the quality of surgery, regimens of (neo)adjuvant therapy as well as the design of surveillance and duration of follow-up. An R1 status is an important risk factor for local recurrence highlighting the relevance of a local radical resection. The majority of local recurrences consist of perivascular and lymph node recurrences. Therefore, lymphadenectomy, radical dissection directly at the celiac and mesenteric vessels including resection of the periarterial nerve plexus and vascular resection are starting points for improving surgical resection techniques. The safety and efficacy of radical resection techniques in the context of multimodal treatment of pancreatic cancer have to be further evaluated in prospective studies.
Collapse
|
25
|
Zheng R, Nauheim D, Bassig J, Chadwick M, Schultz CW, Krampitz G, Lavu H, Winter JR, Yeo CJ, Berger AC. ASO Author Reflections: Margin-Positive Pancreatic Ductal Adenocarcinoma During Pancreaticoduodenectomy: Additional Resection Does Not Improve Survival. Ann Surg Oncol 2020; 27:895-896. [PMID: 32813199 DOI: 10.1245/s10434-020-09031-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2020] [Accepted: 08/09/2020] [Indexed: 11/18/2022]
Affiliation(s)
- Richard Zheng
- Department of Surgery, Thomas Jefferson University Hospital, Sidney Kimmel Medical College, Philadelphia University and Thomas Jefferson University, Philadelphia, PA, USA.
| | - David Nauheim
- Department of Surgery, Thomas Jefferson University Hospital, Sidney Kimmel Medical College, Philadelphia University and Thomas Jefferson University, Philadelphia, PA, USA
| | - Jonathan Bassig
- Department of Surgery, Thomas Jefferson University Hospital, Sidney Kimmel Medical College, Philadelphia University and Thomas Jefferson University, Philadelphia, PA, USA
| | - Matthew Chadwick
- Department of Surgery, Thomas Jefferson University Hospital, Sidney Kimmel Medical College, Philadelphia University and Thomas Jefferson University, Philadelphia, PA, USA
| | - Christopher W Schultz
- Department of Surgery, Thomas Jefferson University Hospital, Sidney Kimmel Medical College, Philadelphia University and Thomas Jefferson University, Philadelphia, PA, USA
| | - Geoffrey Krampitz
- Department of Surgery, Thomas Jefferson University Hospital, Sidney Kimmel Medical College, Philadelphia University and Thomas Jefferson University, Philadelphia, PA, USA
| | - Harish Lavu
- Department of Surgery, Thomas Jefferson University Hospital, Sidney Kimmel Medical College, Philadelphia University and Thomas Jefferson University, Philadelphia, PA, USA
| | - Jordan R Winter
- Department of Surgery, University Hospitals Cleveland Medical Center and the Case Comprehensive Cancer Center, Cleveland, OH, USA
| | - Charles J Yeo
- Department of Surgery, Thomas Jefferson University Hospital, Sidney Kimmel Medical College, Philadelphia University and Thomas Jefferson University, Philadelphia, PA, USA
| | - Adam C Berger
- Department of Surgery, Rutgers Cancer Institute of New Jersey, New Brunswick, NJ, USA
| |
Collapse
|
26
|
Zheng R, Nauheim D, Bassig J, Chadwick M, Schultz CW, Krampitz G, Lavu H, Winter JR, Yeo CJ, Berger AC. Margin-Positive Pancreatic Ductal Adenocarcinoma during Pancreaticoduodenectomy: Additional Resection Does Not Improve Survival. Ann Surg Oncol 2020; 28:1552-1562. [PMID: 32779052 DOI: 10.1245/s10434-020-09000-9] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2020] [Accepted: 07/19/2020] [Indexed: 01/03/2023]
Abstract
BACKGROUND The impact of resecting positive margins during pancreaticoduodenectomy (PD) for pancreatic ductal adenocarcinoma (PDA) remains debated. Additionally, the survival benefit of resecting multiple positive margins is unknown. METHODS We identified patients with PDA who underwent PD from 2006 to 2015. Pancreatic neck, bile duct, and uncinate frozen section margins were assessed before and after resection of positive margins. Survival curves were compared with log-rank tests. Multivariable Cox regression assessed the effect of margin status on overall survival. RESULTS Of 501 patients identified, 17.3%, 5.3%, and 19.7% had an initially positive uncinate, bile duct, or neck margin, respectively. Among initially positive bile duct and neck margins, 77.8% and 67.0% were resected, respectively. Although median survival was decreased among patients with any positive margins (15.6 vs. 20.9 months; p = 0.006), it was similar among patients with positive bile duct or neck margins with or without R1 to R0 resection (17.0 vs. 15.6 months; p = 0.20). Median survival with and without positive uncinate margins was 13.8 vs. 19.7 months (p = 0.04). Uncinate margins were never resected. Resection of additional margins when the uncinate was concurrently positive was not associated with improved survival (p = 0.37). Patients with positive margins who received adjuvant therapy had improved survival, regardless of margin resection (p = 0.03). Adjuvant therapy was independently protective against death (hazard ratio 0.6, 95% CI 0.5-0.7). CONCLUSIONS Positive PD margins at any position are associated with reduced overall survival; however, resection of additional margins may not improve survival, particularly with concurrently positive uncinate margins. Adjuvant chemotherapy improves survival with positive margins, regardless of resection.
Collapse
Affiliation(s)
- Richard Zheng
- Department of Surgery, Thomas Jefferson University Hospital, Sidney Kimmel Medical College, Philadelphia University and Thomas Jefferson University, Philadelphia, PA, USA.
| | - David Nauheim
- Department of Surgery, Thomas Jefferson University Hospital, Sidney Kimmel Medical College, Philadelphia University and Thomas Jefferson University, Philadelphia, PA, USA
| | - Jonathan Bassig
- Department of Surgery, Thomas Jefferson University Hospital, Sidney Kimmel Medical College, Philadelphia University and Thomas Jefferson University, Philadelphia, PA, USA
| | - Matthew Chadwick
- Department of Surgery, Thomas Jefferson University Hospital, Sidney Kimmel Medical College, Philadelphia University and Thomas Jefferson University, Philadelphia, PA, USA
| | - Christopher W Schultz
- Department of Surgery, Thomas Jefferson University Hospital, Sidney Kimmel Medical College, Philadelphia University and Thomas Jefferson University, Philadelphia, PA, USA
| | - Geoffrey Krampitz
- Department of Surgery, Thomas Jefferson University Hospital, Sidney Kimmel Medical College, Philadelphia University and Thomas Jefferson University, Philadelphia, PA, USA
| | - Harish Lavu
- Department of Surgery, Thomas Jefferson University Hospital, Sidney Kimmel Medical College, Philadelphia University and Thomas Jefferson University, Philadelphia, PA, USA
| | - Jordan R Winter
- Department of Surgery, University Hospitals Cleveland Medical Center and the Case Comprehensive Cancer Center, Cleveland, OH, USA
| | - Charles J Yeo
- Department of Surgery, Thomas Jefferson University Hospital, Sidney Kimmel Medical College, Philadelphia University and Thomas Jefferson University, Philadelphia, PA, USA
| | - Adam C Berger
- Department of Surgery, Rutgers Cancer Institute of New Jersey, New Brunswick, NJ, USA
| |
Collapse
|
27
|
Crippa S, Guarneri G, Belfiori G, Partelli S, Pagnanelli M, Gasparini G, Balzano G, Lena MS, Rubini C, Doglioni C, Zamboni G, Falconi M. Positive neck margin at frozen section analysis is a significant predictor of tumour recurrence and poor survival after pancreatodudenectomy for pancreatic cancer. Eur J Surg Oncol 2020; 46:1524-1531. [DOI: 10.1016/j.ejso.2020.02.013] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2019] [Revised: 01/09/2020] [Accepted: 02/12/2020] [Indexed: 01/04/2023] Open
|
28
|
Matsumoto I, Kamei K, Satoi S, Murase T, Matsumoto M, Kawaguchi K, Yoshida Y, Lee D, Takebe A, Nakai T, Takeyama Y. Conversion to open laparotomy during laparoscopic distal pancreatectomy: lessons from a single-center experience in 70 consecutive patients. Surg Today 2020; 51:70-78. [PMID: 32577881 DOI: 10.1007/s00595-020-02056-w] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2020] [Accepted: 06/10/2020] [Indexed: 11/30/2022]
Abstract
PURPOSE The purpose of this study was to determine the factors influencing conversion from laparoscopic distal pancreatectomy (LDP) to open surgery, and the effect of such conversion on the outcome. METHODS This retrospective single-center study included 70 consecutive patients undergoing LDP. The primary endpoint was the rate of conversion to open surgery during LDP. The secondary endpoints were determining the reasons for conversion to open surgery, with detailed analyses of these cases and a comparison of the surgical outcome with and without conversion. RESULTS Seven patients (10%) required conversion to open surgery during LDP. Pancreatic ductal adenocarcinoma (PDAC) was identified as a risk factor for conversion (p = 0.010). The reasons for conversion included technical difficulty (two bleeding, one severe adhesion) and pancreatic stump-related issues (two margin-positive, two stapling failures). Although the overall morbidity rate (29 vs. 11%, p = 0.48) and the rate of clinically relevant postoperative pancreatic fistula (14 vs. 5%, p = 0.82) were no different for the patients with or without open conversion, the postoperative hospital stay was significantly longer in the former (median 15 vs. 10 days, p = 0.03). CONCLUSIONS Careful preoperative assessment is required when planning LDP for PDAC. Although conversion to open surgery does not result in failure of LDP, efforts to reduce the duration of postoperative hospital stay and the occurrence of complications are desirable to improve the outcome of LDP.
Collapse
Affiliation(s)
- Ippei Matsumoto
- Department of Surgery, Faculty of Medicine, Kindai University, 377-2 Ohno-higashi, Osakasayama, Osaka, 589-8511, Japan.
| | - Keiko Kamei
- Department of Surgery, Faculty of Medicine, Kindai University, 377-2 Ohno-higashi, Osakasayama, Osaka, 589-8511, Japan
| | - Shumpei Satoi
- Department of Surgery, Faculty of Medicine, Kindai University, 377-2 Ohno-higashi, Osakasayama, Osaka, 589-8511, Japan
| | - Takaaki Murase
- Department of Surgery, Faculty of Medicine, Kindai University, 377-2 Ohno-higashi, Osakasayama, Osaka, 589-8511, Japan
| | - Masataka Matsumoto
- Department of Surgery, Faculty of Medicine, Kindai University, 377-2 Ohno-higashi, Osakasayama, Osaka, 589-8511, Japan
| | - Kohei Kawaguchi
- Department of Surgery, Faculty of Medicine, Kindai University, 377-2 Ohno-higashi, Osakasayama, Osaka, 589-8511, Japan
| | - Yuta Yoshida
- Department of Surgery, Faculty of Medicine, Kindai University, 377-2 Ohno-higashi, Osakasayama, Osaka, 589-8511, Japan
| | - Dongha Lee
- Department of Surgery, Faculty of Medicine, Kindai University, 377-2 Ohno-higashi, Osakasayama, Osaka, 589-8511, Japan
| | - Atsushi Takebe
- Department of Surgery, Faculty of Medicine, Kindai University, 377-2 Ohno-higashi, Osakasayama, Osaka, 589-8511, Japan
| | - Takuya Nakai
- Department of Surgery, Faculty of Medicine, Kindai University, 377-2 Ohno-higashi, Osakasayama, Osaka, 589-8511, Japan
| | - Yoshifumi Takeyama
- Department of Surgery, Faculty of Medicine, Kindai University, 377-2 Ohno-higashi, Osakasayama, Osaka, 589-8511, Japan
| |
Collapse
|
29
|
The pathohistological subtype strongly predicts survival in patients with ampullary carcinoma. Sci Rep 2019; 9:12676. [PMID: 31481741 PMCID: PMC6722235 DOI: 10.1038/s41598-019-49179-w] [Citation(s) in RCA: 34] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2018] [Accepted: 08/13/2019] [Indexed: 12/16/2022] Open
Abstract
Ampullary cancer represents approximately 6% of the malignant periampullary tumors. An early occurrence of symptoms leads to a 5-year survival rate after curative surgery of 30 to 67%. In addition to the tumor stage, the immunohistological subtypes appear to be important for postoperative prognosis. The aim of this study was to analyze the different subtypes regarding their prognostic relevance. A total of 170 patients with ampullary cancer were retrospectively analyzed between 1999 until 2016 after pancreatic resection. Patients were grouped according to their pathohistological subtype of ampullary cancer (pancreatobiliary, intestinal, mixed). Characteristics among the groups were analyzed using univariate and multivariate models. Survival probability was analyzed by the Kaplan-Meier method. An exact subtyping was possible in 119 patients. A pancreatobiliary subtype was diagnosed in 69 patients (58%), intestinal in 41 patients (34.5%), and a mixed subtype in 9 patients (7.6%). Survival analysis showed a significantly worse 5-year survival rate for the pancreatobiliary subtype compared with the intestinal subtype (27.5% versus 61%, p < 0.001). The mean overall survival of patients with pancreatobiliary, intestinal, and mixed subtype was 52.5, 115 and 94.7 months, respectively (p < 0.001). The pathohistological subtypes of ampullary cancer allows a prediction of the postoperative prognosis.
Collapse
|
30
|
Han Z, Shang W, Liang X, Yan H, Hu M, Peng L, Jiang H, Fang C, Wang K, Tian J. An Innovation for Treating Orthotopic Pancreatic Cancer by Preoperative Screening and Imaging-Guided Surgery. Mol Imaging Biol 2019; 21:67-77. [PMID: 29858735 DOI: 10.1007/s11307-018-1209-8] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
PURPOSE Pancreatic cancer is still associated with a poor outcome and low patient quality of life, which are mainly attributed to the late detection and requirement of distal pancreatectomy with extended resection of pancreatic tumors. Therefore, novel strategies for early screening and precise tumor resection are urgently needed. In this study, we evaluated the feasibility of a low-density lipoprotein receptor (LDLR)-targeted small-molecule contrast agent (peptide-22-Cy7) for early screening with photoacoustic tomography and near-infrared (NIR) imaging as guided surgical navigation to achieve precise resection. PROCEDURE Normal pancreatic cells (HPDE6-C7) and cancer cells (PANC-1) were respectively used in the in vitro targeting evaluations. The ability of peptide-22-Cy7 for preoperative in vivo pancreatic tumor detection was investigated in a mouse orthotopic pancreatic cancer model (n = 10) using photoacoustic tomography; 18 tumor-bearing mice were further divided into three groups for different treatments. After intravenous injection of peptide-22-Cy7, surgical navigation was conducted through laparotomy. Histopathological analysis was used to further confirm the tumor area and the state of surgical margins. RESULTS Flow cytometry demonstrated that peptide-22 is highly specific to pancreatic cancer cells, with a fluorescence intensity of approximately 87.3 %. Orthotopic pancreatic tumors with a size of 4 mm could be accurately detected by photoacoustic tomography. Surgical navigation effectively achieved R0 resection and minimized the range of resection, which led to increased body weight of the mice following surgery. CONCLUSION Overall, our newly developed targeted contrast agent facilitated the accurate positioning and resection of pancreatic tumors. Photoacoustic tomography and optical imaging-guided surgical navigation may be a novel direction for improving the survival, quality of life, and disease management of pancreatic cancer patients.
Collapse
Affiliation(s)
- Ziyu Han
- Department of Hepatobiliary Surgery, Zhujiang Hospital, Southern Medical University, Guangzhou, 510280, China.,CAS Key Laboratory of Molecular Imaging, the State Key Laboratory of Management and control for Complex Systems, Institute of Automation, Chinese Academy of Sciences, Beijing, 100190, China.,University of Chinese Academy of Sciences, Beijing, 100080, China.,Guangdong Provincial Clinical and Engineering Center of Digital Medicine, Guangzhou, 510280, China
| | - Wenting Shang
- CAS Key Laboratory of Molecular Imaging, the State Key Laboratory of Management and control for Complex Systems, Institute of Automation, Chinese Academy of Sciences, Beijing, 100190, China
| | - Xiaoyuan Liang
- Department of Hepatobiliary Surgery, Zhujiang Hospital, Southern Medical University, Guangzhou, 510280, China.,Guangdong Provincial Clinical and Engineering Center of Digital Medicine, Guangzhou, 510280, China
| | - Hao Yan
- CAS Key Laboratory of Molecular Imaging, the State Key Laboratory of Management and control for Complex Systems, Institute of Automation, Chinese Academy of Sciences, Beijing, 100190, China
| | - Min Hu
- Department of Hepatobiliary Surgery, Zhujiang Hospital, Southern Medical University, Guangzhou, 510280, China.,Guangdong Provincial Clinical and Engineering Center of Digital Medicine, Guangzhou, 510280, China
| | - Li Peng
- CAS Key Laboratory of Molecular Imaging, the State Key Laboratory of Management and control for Complex Systems, Institute of Automation, Chinese Academy of Sciences, Beijing, 100190, China
| | - Hongmei Jiang
- CAS Key Laboratory of Molecular Imaging, the State Key Laboratory of Management and control for Complex Systems, Institute of Automation, Chinese Academy of Sciences, Beijing, 100190, China
| | - Chihua Fang
- Department of Hepatobiliary Surgery, Zhujiang Hospital, Southern Medical University, Guangzhou, 510280, China. .,Guangdong Provincial Clinical and Engineering Center of Digital Medicine, Guangzhou, 510280, China.
| | - Kun Wang
- CAS Key Laboratory of Molecular Imaging, the State Key Laboratory of Management and control for Complex Systems, Institute of Automation, Chinese Academy of Sciences, Beijing, 100190, China.
| | - Jie Tian
- CAS Key Laboratory of Molecular Imaging, the State Key Laboratory of Management and control for Complex Systems, Institute of Automation, Chinese Academy of Sciences, Beijing, 100190, China. .,University of Chinese Academy of Sciences, Beijing, 100080, China. .,CAS Center for Excellence in Brain Science and Intelligence Technology, Institute of Automation, Chinese Academy of Sciences, Beijing, China. .,CAS Key Laboratory of Molecular Imaging, Institute of Automation, Chinese Academy of Sciences, Zhongguancun East Road #95, Haidian Dist, Beijing, 100190, China.
| |
Collapse
|
31
|
Ghaneh P, Kleeff J, Halloran CM, Raraty M, Jackson R, Melling J, Jones O, Palmer DH, Cox TF, Smith CJ, O'Reilly DA, Izbicki JR, Scarfe AG, Valle JW, McDonald AC, Carter R, Tebbutt NC, Goldstein D, Padbury R, Shannon J, Dervenis C, Glimelius B, Deakin M, Anthoney A, Lerch MM, Mayerle J, Oláh A, Rawcliffe CL, Campbell F, Strobel O, Büchler MW, Neoptolemos JP. The Impact of Positive Resection Margins on Survival and Recurrence Following Resection and Adjuvant Chemotherapy for Pancreatic Ductal Adenocarcinoma. Ann Surg 2019; 269:520-529. [PMID: 29068800 DOI: 10.1097/sla.0000000000002557] [Citation(s) in RCA: 162] [Impact Index Per Article: 32.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
OBJECTIVE AND BACKGROUND Local and distant disease recurrence are frequently observed following pancreatic cancer resection, but an improved understanding of resection margin assessment is required to aid tailored therapies. METHODS Analyses were carried out to assess the association between clinical characteristics and margin involvement as well as the effects of individual margin involvement on site of recurrence and overall and recurrence-free survival using individual patient data from the European Study Group for Pancreatic Cancer (ESPAC)-3 randomized controlled trial. RESULTS There were 1151 patients, of whom 505 (43.9%) had an R1 resection. The median and 95% confidence interval (CI) overall survival was 24.9 (22.9-27.2) months for 646 (56.1%) patients with resection margin negative (R0 >1 mm) tumors, 25.4 (21.6-30.4) months for 146 (12.7%) patients with R1<1 mm positive resection margins, and 18.7 (17.2-21.1) months for 359 (31.2%) patients with R1-direct positive margins (P < 0.001). In multivariable analysis, overall R1-direct tumor margins, poor tumor differentiation, positive lymph node status, WHO performance status ≥1, maximum tumor size, and R1-direct posterior resection margin were all independently significantly associated with reduced overall and recurrence-free survival. Competing risks analysis showed that overall R1-direct positive resection margin status, positive lymph node status, WHO performance status 1, and R1-direct positive superior mesenteric/medial margin resection status were all significantly associated with local recurrence. CONCLUSIONS R1-direct resections were associated with significantly reduced overall and recurrence-free survival following pancreatic cancer resection. Resection margin involvement was also associated with an increased risk for local recurrence.
Collapse
Affiliation(s)
- Paula Ghaneh
- Liverpool Cancer Research U.K. Cancer Trials Unit, University of Liverpool, Liverpool, United Kingdom University of Liverpool, Liverpool, UK
- The Department of Surgery, Royal Liverpool and Broadgreen University Hospitals NHS Trust, Liverpool, UK
| | - Jorg Kleeff
- The Department of Surgery, Royal Liverpool and Broadgreen University Hospitals NHS Trust, Liverpool, UK
| | - Christopher M Halloran
- The Department of Surgery, Royal Liverpool and Broadgreen University Hospitals NHS Trust, Liverpool, UK
| | - Michael Raraty
- The Department of Surgery, Royal Liverpool and Broadgreen University Hospitals NHS Trust, Liverpool, UK
| | - Richard Jackson
- Liverpool Cancer Research U.K. Cancer Trials Unit, University of Liverpool, Liverpool, United Kingdom University of Liverpool, Liverpool, UK
| | - James Melling
- The Department of Surgery, Royal Liverpool and Broadgreen University Hospitals NHS Trust, Liverpool, UK
| | - Owain Jones
- The Department of Surgery, Royal Liverpool and Broadgreen University Hospitals NHS Trust, Liverpool, UK
| | - Daniel H Palmer
- Liverpool Cancer Research U.K. Cancer Trials Unit, University of Liverpool, Liverpool, United Kingdom University of Liverpool, Liverpool, UK
| | - Trevor F Cox
- Liverpool Cancer Research U.K. Cancer Trials Unit, University of Liverpool, Liverpool, United Kingdom University of Liverpool, Liverpool, UK
| | - Chloe J Smith
- Liverpool Cancer Research U.K. Cancer Trials Unit, University of Liverpool, Liverpool, United Kingdom University of Liverpool, Liverpool, UK
| | - Derek A O'Reilly
- Department of Surgery, Manchester Royal Infirmary, Manchester, UK
| | - Jakob R Izbicki
- Department of Surgery, University of Hamburg Medical institutions UKE, Hamburg, Germany
| | - Andrew G Scarfe
- Department of Oncology Division of Medical Oncology 2228 Cross Cancer Institute and University of Alberta, Canada
| | - Juan W Valle
- Department of Medical Oncology , The Christie, Manchester, UK
| | - Alexander C McDonald
- Department of Medical Oncology, The Beatson West of Scotland Cancer Centre, Glasgow, Scotland, UK
| | - Ross Carter
- Department of Surgery, Glasgow Royal Infirmary, Glasgow, Scotland, UK
| | - Niall C Tebbutt
- Department of Medical Oncology, Austin Health, Melbourne, Australia
| | - David Goldstein
- Department of Medical Oncology, Prince of Wales hospital and Clinical School University of New South Wales, Australia
| | - Robert Padbury
- Department of Surgery, Flinders Medical Centre, Adelaide, South Australia
| | - Jennifer Shannon
- Department of Medical Oncology, Nepean Cancer Centre and University of Sydney, Australia
| | | | - Bengt Glimelius
- Department of Immunology, Genetics and Pathology, Experimental and Clinical Oncology, Uppsala Clinical Research Center, Uppsala, Sweden
| | - Mark Deakin
- Department of Surgery, University Hospital, North Staffordshire, UK
| | - Alan Anthoney
- Division of Oncology at the University of Leeds, St James's University Hospital, Leeds, UK
| | - Markus M Lerch
- Department of Medicine A, University Medicine Greifswald, Greifswald, Germany
| | - Julia Mayerle
- Department of Medicine A, University Medicine Greifswald, Greifswald, Germany
| | - Attila Oláh
- Department of Surgery, The Petz Aladar Hospital, Gyor, Hungary
| | - Charlotte L Rawcliffe
- Liverpool Cancer Research U.K. Cancer Trials Unit, University of Liverpool, Liverpool, United Kingdom University of Liverpool, Liverpool, UK
| | - Fiona Campbell
- Department of Pathology, The Royal Liverpool and Broadgreen University Hospitals NHS Trust, Liverpool, UK
| | - Oliver Strobel
- The Department of Surgery, University of Heidelberg, Heidelberg, Germany
| | - Markus W Büchler
- The Department of Surgery, University of Heidelberg, Heidelberg, Germany
| | - John P Neoptolemos
- Liverpool Cancer Research U.K. Cancer Trials Unit, University of Liverpool, Liverpool, United Kingdom University of Liverpool, Liverpool, UK
- The Department of Surgery, Royal Liverpool and Broadgreen University Hospitals NHS Trust, Liverpool, UK
| |
Collapse
|
32
|
Zhang XF, Wu Z, Cloyd J, Lopez-Aguiar AG, Poultsides G, Makris E, Rocha F, Kanji Z, Weber S, Fisher A, Fields R, Krasnick BA, Idrees K, Smith PM, Cho C, Beems M, Schmidt CR, Dillhoff M, Maithel SK, Pawlik TM. Margin status and long-term prognosis of primary pancreatic neuroendocrine tumor after curative resection: Results from the US Neuroendocrine Tumor Study Group. Surgery 2019; 165:548-556. [PMID: 30278986 PMCID: PMC10187058 DOI: 10.1016/j.surg.2018.08.015] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2018] [Revised: 08/01/2018] [Accepted: 08/08/2018] [Indexed: 02/06/2023]
Abstract
BACKGROUND The impact of margin status on resection of primary pancreatic neuroendocrine tumors has been poorly defined. The objectives of the present study were to determine the impact of margin status on long-term survival of patients with pancreatic neuroendocrine tumors after curative resection and evaluate the impact of reresection to obtain a microscopically negative margin. METHODS Patients who underwent curative-intent resection for pancreatic neuroendocrine tumors between 2000 and 2016 were identified at 8 hepatobiliary centers. Overall and recurrence-free survival were analyzed relative to surgical margin status using univariable and multivariable analyses. RESULTS Among 1,020 patients, 866 (84.9%) had an R0 (>1 mm margin) resection, whereas 154 (15.1%) had an R1 (≤1 mm margin) resection. R1 resection was associated with a worse recurrence-free survival (10-year recurrence-free survival, R1 47.3% vs R0 62.8%, hazard ratio 1.8, 95% confidence interval 1.2-2.7, P = .002); residual tumor at either the transection margin (R1t) or the mobilization margin (R1m) was associated with increased recurrence versus R0 (R1t versus R0: hazard ratio 1.8, 95% confidence interval 1.0-3.0, P = .033; R1m versus R0: hazard ratio 1.3, 95% confidence interval 1.0-1.7, P = .060). In contrast, margin status was not associated with overall survival (10-year overall survival, R1 71.1% vs R0 71.8%, P = .392). Intraoperatively, 539 (53.6%) patients had frozen section evaluation of the surgical margin; 49 (9.1%) patients had a positive margin on frozen section analysis; 38 of the 49 patients (77.6%) had reresection, and a final R0 (secondary R0) margin was achieved in 30 patients (78.9%). Extending resection to achieve an R0 status remained associated with worse overall survival (hazard ratio 3.1, 95% confidence interval 1.6-6.2, P = .001) and recurrence-free survival (hazard ratio 2.6, 95% confidence interval 1.4-5.0, P = .004) compared with primary R0 resection. On multivariable analyses, tumor-specific factors, such as cellular differentiation, perineural invasion, Ki-67 index, and major vascular invasion, rather than surgical margin, were associated with long-term outcomes. CONCLUSION Margin status was not associated with long-term survival. The reresection of an initially positive surgical margin to achieve a negative margin did not improve the outcome of patients with pancreatic neuroendocrine tumors. Parenchymal-sparing pancreatic procedures for pancreatic neuroendocrine tumors may be appropriate when feasible.
Collapse
Affiliation(s)
- Xu-Feng Zhang
- Department of Hepatobiliary Surgery and Institute of Advanced Surgical Technology and Engineering, the First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Zheng Wu
- Department of Hepatobiliary Surgery and Institute of Advanced Surgical Technology and Engineering, the First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Jordan Cloyd
- Division of Surgical Oncology, the Ohio State University Wexner Medical Center and James Comprehensive Cancer Center, Columbus, OH
| | - Alexandra G Lopez-Aguiar
- Division of Surgical Oncology, Department of Surgery, Winship Cancer Institute, Emory University, Atlanta, GA
| | | | | | - Flavio Rocha
- Department of Surgery, Virginia Mason Medical Center, Seattle, WA
| | - Zaheer Kanji
- Department of Surgery, Virginia Mason Medical Center, Seattle, WA
| | - Sharon Weber
- Department of Surgery, University of Wisconsin School of Medicine and Public Health, Madison, WI
| | - Alexander Fisher
- Department of Surgery, University of Wisconsin School of Medicine and Public Health, Madison, WI
| | - Ryan Fields
- Department of Surgery, Washington University School of Medicine, St. Louis, MO
| | - Bradley A Krasnick
- Department of Surgery, Washington University School of Medicine, St. Louis, MO
| | - Kamran Idrees
- Division of Surgical Oncology, Department of Surgery, Vanderbilt University, Nashville, TN
| | - Paula M Smith
- Division of Surgical Oncology, Department of Surgery, Vanderbilt University, Nashville, TN
| | - Cliff Cho
- Division of Hepatopancreatobiliary and Advanced Gastrointestinal Surgery, Department of Surgery, University of Michigan, Ann Arbor, MI
| | - Megan Beems
- Division of Hepatopancreatobiliary and Advanced Gastrointestinal Surgery, Department of Surgery, University of Michigan, Ann Arbor, MI
| | - Carl R Schmidt
- Division of Surgical Oncology, the Ohio State University Wexner Medical Center and James Comprehensive Cancer Center, Columbus, OH
| | - Mary Dillhoff
- Division of Surgical Oncology, the Ohio State University Wexner Medical Center and James Comprehensive Cancer Center, Columbus, OH
| | - Shishir K Maithel
- Division of Surgical Oncology, Department of Surgery, Winship Cancer Institute, Emory University, Atlanta, GA
| | - Timothy M Pawlik
- Division of Surgical Oncology, the Ohio State University Wexner Medical Center and James Comprehensive Cancer Center, Columbus, OH.
| |
Collapse
|
33
|
Yin Z, Zhou Y, Hou B, Ma T, Yu M, Zhang C, Lu X, Jian Z. Revision of Surgical Margin under Frozen Section to Achieve R0 Status on Survival in Patients with Pancreatic Cancer. J Gastrointest Surg 2018; 22:1565-1575. [PMID: 29777452 DOI: 10.1007/s11605-018-3806-x] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/15/2018] [Accepted: 05/04/2018] [Indexed: 01/31/2023]
Abstract
OBJECTIVE The aim is to investigate whether additional resection based on intraoperative frozen section (FS) to a secondary R0(s) status are associated with different long-term survivals in pancreatic cancer patients, comparing to those with R1 or primary R0(p) status. METHODS A systematic literature search (PubMed, Embase, Science Citation Index, Springer-Link, and Cochrane Central Register of Controlled Trials) was performed to identify all studies published up to June 2017. Survivals of patients undergoing pancreatic surgery according to the results of FS and re-resection were pooled for analysis. RESULTS Five cohort studies were qualified for inclusion in this review with a total of 2980 patients. Long-term survival outcomes favored R0(p) resection as compared to R0(s) resection (HR = 1.58, 95%CI 1.24-2.01, P = 0.0002, I2 = 58%). No significant difference was observed for patients with or without additional resection at the time of surgery when positive FS was detected (HR = 0.98, 95CI% 0.65-1.47, P = 0.91, I2 = 81%). CONCLUSIONS The present study did not support the concept of achieving an R0 resection by intraoperative re-resection would benefit the patient's survival. R1 margin at the time of surgery is more like a marker of aggressive tumor biology. Future well-designed randomized controlled trials are needed to confirm the conclusion.
Collapse
Affiliation(s)
- Zi Yin
- General Surgery Department of Guangdong General Hospital, Guangdong Academy of Medical Sciences, 106 Zhongshan Er Rd, Guangzhou, 510080, China.
| | - Yu Zhou
- General Surgery Department of Guangdong General Hospital, Guangdong Academy of Medical Sciences, 106 Zhongshan Er Rd, Guangzhou, 510080, China
| | - Baohua Hou
- General Surgery Department of Guangdong General Hospital, Guangdong Academy of Medical Sciences, 106 Zhongshan Er Rd, Guangzhou, 510080, China
| | - Tingting Ma
- Gynaecology and Obstetrics Department, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, China
| | - Min Yu
- General Surgery Department of Guangdong General Hospital, Guangdong Academy of Medical Sciences, 106 Zhongshan Er Rd, Guangzhou, 510080, China
| | - Chuanzhao Zhang
- General Surgery Department of Guangdong General Hospital, Guangdong Academy of Medical Sciences, 106 Zhongshan Er Rd, Guangzhou, 510080, China
| | - Xin Lu
- General Surgery Department of Guangdong General Hospital, Guangdong Academy of Medical Sciences, 106 Zhongshan Er Rd, Guangzhou, 510080, China
| | - Zhixiang Jian
- General Surgery Department of Guangdong General Hospital, Guangdong Academy of Medical Sciences, 106 Zhongshan Er Rd, Guangzhou, 510080, China.
| |
Collapse
|
34
|
Adamu M, Nitschke P, Petrov P, Rentsch A, Distler M, Reissfelder C, Welsch T, Saeger HD, Weitz J, Rahbari NN. Validation of prognostic risk scores for patients undergoing resection for pancreatic cancer. Pancreatology 2018; 18:585-591. [PMID: 29866508 DOI: 10.1016/j.pan.2018.05.005] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/27/2017] [Revised: 02/04/2018] [Accepted: 05/12/2018] [Indexed: 12/11/2022]
Abstract
BACKGROUND/OBJECTIVES A better stratification of patients into risk groups might help to select patients who might benefit from more aggressive therapy. The aim of this study was to validate five prognostic scores in patients resected for pancreatic ductal adenocarcinoma (PDAC). METHODS Included were 307 PDAC patients who underwent resection with curative intent. Five clinical risk scores were selected and applied to our study population. Survival analyses were carried out using univariate and multivariate proportional hazards regression. RESULTS Prognostic stratification was strong for the Heidelberg score (p < 0.001) and the Memorial Sloan Kettering Cancer Center (MSKCC) nomogram (p = 0.001) and moderate for the Botsis score (p = 0.033). There was no significant prognostic value for the Early Mortality Risk Score (p = 0.126) and McGill Brisbane Symptom Score (p = 0.133). Positive resection margin (HR 1.53, 95% CI 1.08-2.16) and pain [pain (HR 1.40, CI 1.03-1.91), back pain (HR 1.67, 95% CI 1.08-2.57)] were independent prognostic factors on multivariate analysis. CONCLUSIONS The Heidelberg score and MSKCC nomogram provided adequate risk stratification in our independent study cohort. Further studies in independent patient cohorts are required to achieve higher levels of validation.
Collapse
Affiliation(s)
- Mariam Adamu
- Department of Visceral, Thoracic and Vascular Surgery, University Hospital Carl Gustav Carus, Technical University Dresden, Germany
| | - Philipp Nitschke
- Department of Visceral, Thoracic and Vascular Surgery, University Hospital Carl Gustav Carus, Technical University Dresden, Germany
| | - Petar Petrov
- Department of Visceral, Thoracic and Vascular Surgery, University Hospital Carl Gustav Carus, Technical University Dresden, Germany
| | - Anke Rentsch
- University Cancer Center, Carl Gustav Carus, Technical University Dresden, Germany
| | - Marius Distler
- Department of Visceral, Thoracic and Vascular Surgery, University Hospital Carl Gustav Carus, Technical University Dresden, Germany
| | - Christoph Reissfelder
- Department of Visceral, Thoracic and Vascular Surgery, University Hospital Carl Gustav Carus, Technical University Dresden, Germany
| | - Thilo Welsch
- Department of Visceral, Thoracic and Vascular Surgery, University Hospital Carl Gustav Carus, Technical University Dresden, Germany
| | - Hans-Detlev Saeger
- Department of Visceral, Thoracic and Vascular Surgery, University Hospital Carl Gustav Carus, Technical University Dresden, Germany
| | - Juergen Weitz
- Department of Visceral, Thoracic and Vascular Surgery, University Hospital Carl Gustav Carus, Technical University Dresden, Germany
| | - Nuh N Rahbari
- Department of Visceral, Thoracic and Vascular Surgery, University Hospital Carl Gustav Carus, Technical University Dresden, Germany.
| |
Collapse
|
35
|
|
36
|
Validation of full-field optical coherence tomography in distinguishing malignant and benign tissue in resected pancreatic cancer specimens. PLoS One 2017; 12:e0175862. [PMID: 28414765 PMCID: PMC5393621 DOI: 10.1371/journal.pone.0175862] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2016] [Accepted: 03/31/2017] [Indexed: 12/22/2022] Open
Abstract
Background Pancreatic cancer is the fourth leading cause of cancer-related mortality in the United States. The minority of patients can undergo curative-intended surgical therapy due to progressive disease stage at time of diagnosis. Nonetheless, tumor involvement of surgical margins is seen in up to 70% of resections, being a strong negative prognostic factor. Real-time intraoperative imaging modalities may aid surgeons to obtain tumor-free resection margins. Full-field optical coherence tomography (FF-OCT) is a promising diagnostic tool using high-resolution white-light interference microscopy without tissue processing. Therefore, we composed an atlas of FF-OCT images of malignant and benign pancreatic tissue, and investigated the accuracy with which the pathologists could distinguish these. Materials and methods One hundred FF-OCT images were collected from specimens of 29 patients who underwent pancreatic resection for various indications between 2014 and 2016. One experienced gastrointestinal pathologist and one pathologist in training scored independently the FF-OCT images as malignant or benign blinded to the final pathology conclusion. Results were compared to those obtained with standard hematoxylin and eosin (H&E) slides. Results Overall, combined test characteristics of both pathologists showed a sensitivity of 72%, specificity of 74%, positive predictive value of 69%, negative predictive value of 79% and an overall accuracy of 73%. In the subset of pancreatic ductal adenocarcinoma patients, 97% of the FF-OCT images (n = 35) were interpreted as tumor by at least one pathologist. Moreover, normal pancreatic tissue was recognised in all cases by at least one pathologist. However, atrophy and fibrosis, serous cystadenoma and neuroendocrine tumors were more often wrongly scored, in 63%, 100% and 25% respectively. Conclusion FF-OCT could distinguish normal pancreatic tissue from pathologic pancreatic tissue in both processed as non-processed specimens using architectural features. The accuracy in pancreatic ductal adenocarcinoma is promising and warrants further evaluation using improved assessment criteria.
Collapse
|