1
|
Mallick S, Chervu NL, Balian J, Charland N, Valenzuela AR, Sakowitz S, Benharash P. Association of hospital volume and operative approach with clinical and financial outcomes of elective esophagectomy in the United States. PLoS One 2024; 19:e0303586. [PMID: 38875301 PMCID: PMC11178205 DOI: 10.1371/journal.pone.0303586] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2023] [Accepted: 04/16/2024] [Indexed: 06/16/2024] Open
Abstract
INTRODUCTION Literature regarding the impact of esophagectomy approach on hospitalizations costs and short-term outcomes is limited. Moreover, few have examined how institutional MIS experience affects costs. We thus examined utilization trends, costs, and short-term outcomes of open and minimally invasive (MIS) esophagectomy as well as assessing the relationship between institutional MIS volume and hospitalization costs. METHODS All adults undergoing elective esophagectomy were identified from the 2016-2020 Nationwide Readmissions Database. Multiple regression models were used to assess approach with costs, in-hospital mortality, and major complications. Additionally, annual hospital MIS esophagectomy volume was modeled as a restricted cubic spline against costs. Institutions performing > 16 cases/year corresponding with the inflection point were categorized as high-volume hospitals (HVH). We subsequently examined the association of HVH status with costs, in-hospital mortality, and major complications in patients undergoing minimally invasive esophagectomy. RESULTS Of an estimated 29,116 patients meeting inclusion, 10,876 (37.4%) underwent MIS esophagectomy. MIS approaches were associated with $10,600 in increased incremental costs (95% CI 8,800-12,500), but lower odds of in-hospital mortality (AOR 0.76; 95% CI 0.61-0.96) or major complications (AOR 0.68; 95% CI 0.60, 0.77). Moreover, HVH status was associated with decreased adjusted costs, as well as lower odds of postoperative complications for patients undergoing MIS operations. CONCLUSION In this nationwide study, MIS esophagectomy was associated with increased hospitalization costs, but improved short-term outcomes. In MIS operations, cost differences were mitigated by volume, as HVH status was linked with decreased costs in the setting of decreased odds of complications. Centralization of care to HVH centers should be considered as MIS approaches are increasingly utilized.
Collapse
Affiliation(s)
- Saad Mallick
- Cardiovascular Outcomes Research Laboratories (CORELAB), David Geffen School of Medicine, University of California, Los Angeles, CA, United States of America
| | - Nikhil L Chervu
- Cardiovascular Outcomes Research Laboratories (CORELAB), David Geffen School of Medicine, University of California, Los Angeles, CA, United States of America
- Department of Surgery, David Geffen School of Medicine, University of California, UCLA, Los Angeles, CA, United States of America
| | - Jeffrey Balian
- Cardiovascular Outcomes Research Laboratories (CORELAB), David Geffen School of Medicine, University of California, Los Angeles, CA, United States of America
| | - Nicole Charland
- Cardiovascular Outcomes Research Laboratories (CORELAB), David Geffen School of Medicine, University of California, Los Angeles, CA, United States of America
| | - Alberto R Valenzuela
- Cardiovascular Outcomes Research Laboratories (CORELAB), David Geffen School of Medicine, University of California, Los Angeles, CA, United States of America
| | - Sara Sakowitz
- Cardiovascular Outcomes Research Laboratories (CORELAB), David Geffen School of Medicine, University of California, Los Angeles, CA, United States of America
| | - Peyman Benharash
- Cardiovascular Outcomes Research Laboratories (CORELAB), David Geffen School of Medicine, University of California, Los Angeles, CA, United States of America
- Department of Surgery, David Geffen School of Medicine, University of California, UCLA, Los Angeles, CA, United States of America
| |
Collapse
|
2
|
Wang ML, Shyr BS, Chen SC, Wang SE, Shyr YM, Shyr BU. Comparison of robotic and open central pancreatectomy. Int J Med Robot 2023:e2562. [PMID: 37574857 DOI: 10.1002/rcs.2562] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2023] [Revised: 07/01/2023] [Accepted: 07/20/2023] [Indexed: 08/15/2023]
Abstract
BACKGROUND Central pancreatectomy (CP) is an ideal parenchyma-sparing procedure. The experience of r robotic central pancreatectomy (RCP) is very limited. MATERIALS AND METHODS Patients undergoing CP were included. Comparisons were made between RCP and open central pancreatectomy (OCP) groups. RESULTS The most common lesion in patients undergoing CP was serous cystadenoma (35.5%). The median operation time was 4.2 h for RCP versus 5.5 h for OCP. The median blood loss was significantly lower in RCP, 20 c.c. versus 170 c.c., p = 0.001. Postoperative pancreatic fistula occurred in 19.4% of all patients, with 22.1% in RCP and 15.4% in OCP. There was no significant difference regarding other surgical complications between the RCP and OCP groups. Only one patient in the OCP group developed de novo diabetes mellitus (DM), and no steatorrhoea/diarrhoea occurred after either RCP or OCP. CONCLUSIONS RCP is feasible and safe without compromising surgical outcomes and pancreatic functions.
Collapse
Affiliation(s)
- Man-Ling Wang
- Departments of Surgery, Division of General Surgery, Taipei Veterans General Hospital, National Yang Ming Chiao Tung University, Taipei, Taiwan
| | - Bor-Shiuan Shyr
- Departments of Surgery, Division of General Surgery, Taipei Veterans General Hospital, National Yang Ming Chiao Tung University, Taipei, Taiwan
| | - Shih-Chin Chen
- Departments of Surgery, Division of General Surgery, Taipei Veterans General Hospital, National Yang Ming Chiao Tung University, Taipei, Taiwan
| | - Shin-E Wang
- Departments of Surgery, Division of General Surgery, Taipei Veterans General Hospital, National Yang Ming Chiao Tung University, Taipei, Taiwan
| | - Yi-Ming Shyr
- Departments of Surgery, Division of General Surgery, Taipei Veterans General Hospital, National Yang Ming Chiao Tung University, Taipei, Taiwan
| | - Bor-Uei Shyr
- Departments of Surgery, Division of General Surgery, Taipei Veterans General Hospital, National Yang Ming Chiao Tung University, Taipei, Taiwan
| |
Collapse
|
3
|
Minimally Invasive vs Open Pancreatectomy for Pancreatic Neuroendocrine Tumors: Multi-Institutional 10-Year Experience of 1,023 Patients. J Am Coll Surg 2022; 235:315-330. [PMID: 35839409 DOI: 10.1097/xcs.0000000000000257] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
BACKGROUND Resection of pancreatic neuroendocrine tumors (PNETs) may be associated with adverse perioperative outcomes compared with pancreatic adenocarcinoma given the high-risk nature of soft glands with small pancreatic ducts. The effect of minimally invasive surgery (MIS) pancreatectomy on outcomes of PNETs remains to be examined, which is the aim of this study. STUDY DESIGN Between 2009 and 2019, 1,023 patients underwent pancreatectomy for PNETs at 4 institutions. Clinicopathologic data and perioperative outcomes of patients who underwent MIS (n = 447) and open resections (n = 576) were compared. RESULTS Of the 1,023 patients, 51% were male, the mean age was 58, the median tumor size was 2.1 cm, and 73% were grade 1 PNETs. There were 318 (31%) pancreatoduodenectomies (PDs), 541 (53%) distal pancreatectomies (DPs), 80 (7.8%) enucleation (ENs), 72 (7%) central pancreatectomies (CPs), and 12 (1.2%) total pancreatectomies. Almost half of the patients (N = 447, 44%) had MIS operations, of which 230 (51%) were robotic and 217 (49%) were laparoscopic. Compared with open operations, MIS PDs had significantly lower operative blood loss (150 vs 400 mL, p < 0.001) and rate of clinically relevant postoperative pancreatic fistulas (CR-POPFs; 13% vs 27%, p = 0.030), and MIS DPs had a shorter length of stay (5 vs 6 days, p < 0.001). Although MIS DPs and ENs had CR-POPFs comparable with open operations, MIS CPs had a higher CR-POPF rate (45% vs 15%, p = 0.013). After adjusting for pathological differences, MIS pancreatectomy was associated with recurrence-free survival and overall survival comparable with open pancreatectomy. CONCLUSIONS MIS pancreatectomy for PNETs is associated with improved outcomes or outcomes comparable with open resection.
Collapse
|
4
|
KIROV KG. Central pancreatectomy with common hepatic artery resection for a giant pancreatic neuroendocrine tumor. Chirurgia (Bucur) 2022. [DOI: 10.23736/s0394-9508.21.05294-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
|
5
|
Cruz MAA, Moutinho-Ribeiro P, Costa-Moreira P, Macedo G. Solid Pseudopapillary Neoplasm of the Pancreas: Unfolding an Intriguing Condition. GE PORTUGUESE JOURNAL OF GASTROENTEROLOGY 2022; 29:151-162. [PMID: 35702168 PMCID: PMC9149554 DOI: 10.1159/000519933] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/21/2021] [Accepted: 09/28/2021] [Indexed: 08/10/2023]
Abstract
Pancreatic cancer is one of the most lethal malignant neoplasms, with a 1-year survival rate after diagnosis of 24%, and a 5-year survival rate of only 9%. While this illustrates the behavior of its main histologic type - ductal adenocarcinoma, there are other histologic subtypes of pancreatic cancer that can harbor excellent prognosis. Solid pseudopapillary neoplasm, described as a rare low-grade malignant neoplasm by the World Health Organization, is the best example of that, having an overall 5-year survival rate of about 97%. Not only the prognosis, but everything about this entity is unique: its histogenesis, epidemiology, presentation, imaging characteristics, cytology features, immunohistochemical profile, and treatment. This explains the urge to improve our understanding about this entity and thus our ability to accurately recognize and manage it. Having this in mind, this article aims to summarize the most relevant topics regarding this entity.
Collapse
Affiliation(s)
| | - Pedro Moutinho-Ribeiro
- Faculty of Medicine, University of Porto, Porto, Portugal
- Gastroenterology Department, Centro Hospitalar e Universitário São João, Porto, Portugal
| | - Pedro Costa-Moreira
- Faculty of Medicine, University of Porto, Porto, Portugal
- Gastroenterology Department, Centro Hospitalar e Universitário São João, Porto, Portugal
| | - Guilherme Macedo
- Faculty of Medicine, University of Porto, Porto, Portugal
- Gastroenterology Department, Centro Hospitalar e Universitário São João, Porto, Portugal
| |
Collapse
|
6
|
Sutton TL, Pommier RF, Mayo SC, Gilbert EW, Papavasiliou P, Babicky M, Gerry J, Sheppard BC, Worth PJ. Similar Outcomes in Minimally Invasive versus Open Management of Primary Pancreatic Neuroendocrine Tumors: A Regional, Multi-Institutional Collaborative Analysis. Cancers (Basel) 2022; 14:cancers14061387. [PMID: 35326539 PMCID: PMC8946133 DOI: 10.3390/cancers14061387] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2022] [Revised: 02/28/2022] [Accepted: 03/04/2022] [Indexed: 11/16/2022] Open
Abstract
In pancreatic neuroendocrine tumors (PNETs), the impact of minimally invasive (MI) versus open resection on outcomes remains poorly studied. We queried a multi-institutional pancreatic cancer registry for patients with resected non-metastatic PNET from 1996−2020. Recurrence-free (RFS), disease-specific survival (DSS), and operative complications were evaluated. Two hundred and eighty-two patients were identified. Operations were open in 139 (49%) and MI in 143 (51%). Pancreaticoduodenectomy was performed in 77 (27%, n = 23 MI), distal pancreatectomy in 184 (65%, n = 109 MI), enucleation in 13 (5%), and total pancreatectomy in eight (3%). Median follow-up was 50 months. Thirty-six recurrences and 13 deaths from recurrent disease yielded 5-year RFS and DSS of 85% and 95%, respectively. On multivariable analysis, grade 1 (HR 0.07, p < 0.001) and grade 2 (HR 0.20, p = 0.002) tumors were associated with improved RFS, while T3/T4 tumors were associated with worse RFS (OR 2.78, p = 0.04). MI resection was not associated with RFS (HR 0.53, p = 0.14). There was insufficient mortality to evaluate DSS with multivariable analysis. Of 159 patients with available NSQIP data, incisional surgical site infections (SSIs), organ space SSIs, Grade B/C pancreatic fistulas, reoperations, and need for percutaneous drainage did not differ by operative approach (all p > 0.2). Nodal harvest was similar for MI versus open distal pancreatectomies (p = 0.16) and pancreaticoduodenectomies (p = 0.28). Minimally invasive surgical management of PNETs is equivalent for oncologic and postoperative outcomes.
Collapse
Affiliation(s)
- Thomas L. Sutton
- Department of Surgery, Division of General Surgery, Oregon Heath & Science University (OHSU), Portland, OR 97239, USA; (T.L.S.); (E.W.G.); (B.C.S.)
| | - Rodney F. Pommier
- Department of Surgery, Division of Surgical Oncology, Knight Cancer Institute, Oregon Heath & Science University (OHSU), Portland, OR 97239, USA; (R.F.P.); (S.C.M.)
| | - Skye C. Mayo
- Department of Surgery, Division of Surgical Oncology, Knight Cancer Institute, Oregon Heath & Science University (OHSU), Portland, OR 97239, USA; (R.F.P.); (S.C.M.)
| | - Erin W. Gilbert
- Department of Surgery, Division of General Surgery, Oregon Heath & Science University (OHSU), Portland, OR 97239, USA; (T.L.S.); (E.W.G.); (B.C.S.)
| | | | - Michele Babicky
- The Oregon Clinic, Center for Advanced Surgery, Portland, OR 97213, USA; (M.B.); (J.G.)
| | - Jon Gerry
- The Oregon Clinic, Center for Advanced Surgery, Portland, OR 97213, USA; (M.B.); (J.G.)
| | - Brett C. Sheppard
- Department of Surgery, Division of General Surgery, Oregon Heath & Science University (OHSU), Portland, OR 97239, USA; (T.L.S.); (E.W.G.); (B.C.S.)
| | - Patrick J. Worth
- Department of Surgery, Division of General Surgery, Oregon Heath & Science University (OHSU), Portland, OR 97239, USA; (T.L.S.); (E.W.G.); (B.C.S.)
- Correspondence: ; Tel.: +1-503-346-0243; Fax: +1-503-494-8884
| |
Collapse
|
7
|
Ferraro V, Tedeschi M, Laera L, Ammendola M, Riccelli U, Silvestris N, Fiorentino A, Surico G, Inchingolo R, Decembrino F, de Angelis N, Memeo R. The Role of Laparoscopic Surgery in Localized Pancreatic Neuroendocrine Tumours. Curr Treat Options Oncol 2021; 22:27. [PMID: 33641016 DOI: 10.1007/s11864-021-00824-5] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/18/2021] [Indexed: 02/05/2023]
Abstract
Pancreatic neuroendocrine tumours (PNETs) are a rare and heterogeneous group of tumours with various clinical manifestations and biological behaviours. They represent approximately 2-4% of all pancreatic tumours, with an incidence of 2-3 cases per million people. PNETs are classified clinically as non-functional or functional, and pancreatic resection is recommended for lesions greater than 2 cm. The surgical approach can involve "typical" and "atypical" resections depending on the number, size and location of the tumour. Typical resections include pancreaticoduodenectomy, distal pancreatectomy enucleation and, rarely, total pancreatectomy. Atypical resections comprise central pancreatectomies or enucleations. Minimally invasive pancreatic resection has been proven to be technically feasible and safe in high-volume and specialized centres with highly skilled laparoscopic surgeons, with consolidated benefits for patients in the postoperative course. However, open and minimally invasive pancreatic surgery remains to have a high rate of complications; there is no specific technical contraindication to minimally invasive pancreatic surgery, but an appropriate patient selection is crucial to obtain satisfactory clinical and oncological outcomes.
Collapse
Affiliation(s)
- Valentina Ferraro
- Hepato-Pancreato-Biliary Surgery Unit, Miulli Hospital, Acquaviva delle Fonti, Bari, Italy.
| | - Michele Tedeschi
- Hepato-Pancreato-Biliary Surgery Unit, Miulli Hospital, Acquaviva delle Fonti, Bari, Italy
| | - Letizia Laera
- Medical Oncology Unit, Miulli Hospital, Acquaviva delle Fonti, Bari, Italy
| | - Michele Ammendola
- Department of Health Sciences, General Surgery, Magna Græcia University, Medicine School of Germaneto, Catanzaro, Italy
| | - Umberto Riccelli
- Department of Reconstructive Surgery, "Pugliese Ciaccio" Hospital, Catanzaro, Italy
| | - Nicola Silvestris
- Medical Oncology Unit, IRCCS Cancer Institute "Giovanni Paolo II", Bari, Italy
| | - Alba Fiorentino
- Radiotherapy Unit, Miulli Hospital, Acquaviva delle Fonti, Bari, Italy
| | - Giammarco Surico
- Medical Oncology Unit, Miulli Hospital, Acquaviva delle Fonti, Bari, Italy
| | - Riccardo Inchingolo
- Interventional Radiology Unit, Miulli Hospital, Acquaviva delle Fonti, Bari, Italy
| | - Francesco Decembrino
- Gastroenterology and Endoscopy Unit, Miulli Hospital, Acquaviva delle Fonti, Bari, Italy
| | - Nicola de Angelis
- Minimally invasive and Robotic Gastrointestinal Surgery, Acquaviva delle Fonti, Bari, Italy
| | - Riccardo Memeo
- Hepato-Pancreato-Biliary Surgery Unit, Miulli Hospital, Acquaviva delle Fonti, Bari, Italy
| |
Collapse
|
8
|
Kim J, Hwang HK, Lee WJ, Kang CM. Minimally invasive vs open pancreatectomy for nonfunctioning pancreatic neuroendocrine tumors. World J Gastrointest Oncol 2020; 12:1133-1145. [PMID: 33133382 PMCID: PMC7579734 DOI: 10.4251/wjgo.v12.i10.1133] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/21/2020] [Revised: 08/17/2020] [Accepted: 09/14/2020] [Indexed: 02/05/2023] Open
Abstract
BACKGROUND The mainstay of treating nonfunctioning-pancreatic neuroendocrine tumors(NF-PNETs) is surgical resection. However, minimally invasive approaches to pancreatic resection for treating NF-PNETs are not widely accepted, and the long-term oncological outcomes of such approaches remain unknown.
AIM To determine the short- and long-term outcomes of minimally invasive pancreatic resection conducted in patients with NF-PNETs.
METHODS Prospective databases from Severance Hospital were searched for 110 patients who underwent curative resection for NF-PNETs between January 2003 and August 2018.
RESULTS The proportion of minimally invasive surgery (MIS) procedures performed for NF-PNET increased to more than 75% after 2013. There was no significant difference in post-operative complications (P = 0.654), including pancreatic fistula (P = 0.890) and delayed gastric emptying (P = 0.652), between MIS and open approaches. No statistically significant difference was found in disease-free survival between the open approach group and the MIS group (median follow-up period, 28.1 mo; P = 0.428). In addition, the surgical approach (MIS vs open) was not found to be an independent prognostic factor in treating NF-PNET patients [Exp(β) = 1.062; P = 0.929].
CONCLUSION Regardless of the type of surgery, a minimally invasive approach can be safe and feasible for select NF-PNET patients.
Collapse
Affiliation(s)
- Juwan Kim
- Department of Surgery, Yonsei University College of Medicine, Severance Hospital, Seoul 03722, South Korea
| | - Ho Kyoung Hwang
- Department of Surgery, Yonsei University College of Medicine, Seoul 03722, South Korea
| | - Woo Jung Lee
- Department of Surgery, Yonsei University College of Medicine, Seoul 03722, South Korea
| | - Chang Moo Kang
- Department of Surgery, Yonsei University College of Medicine, Seoul 03722, South Korea
| |
Collapse
|
9
|
Andreasi V, Partelli S, Capurso G, Muffatti F, Balzano G, Crippa S, Falconi M. Long-Term Pancreatic Functional Impairment after Surgery for Neuroendocrine Neoplasms. J Clin Med 2019; 8:jcm8101611. [PMID: 31623399 PMCID: PMC6832294 DOI: 10.3390/jcm8101611] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2019] [Revised: 09/23/2019] [Accepted: 09/27/2019] [Indexed: 12/13/2022] Open
Abstract
Radical surgery represents the only curative treatment for pancreatic neuroendocrine neoplasms (PanNEN). The aim of this study was to evaluate the postoperative onset of diabetes mellitus (DM) and/or pancreatic exocrine insufficiency (PEI) in surgically treated PanNEN. Consecutive PanNEN patients, without preoperative DM, who underwent partial pancreatic resection, were included. After a median follow-up of 72 months, overall 68/276 patients (24%) developed DM. Patients who developed DM were significantly older (p = 0.002) and they had a higher body mass index (BMI) (p < 0.0001) than those who did not; they were more frequently male (p = 0.017) and with nonfunctioning neoplasms (p = 0.019). BMI > 25 Kg/m2 was the only independent predictor of DM (p = 0.001). Overall, 118/276 patients (43%) developed a PEI, which was significantly more frequent after pancreaticoduodenectomy (p < 0.0001) and in patients with T3-T4 tumors (p = 0.001). Pancreaticoduodenectomy was the only independent predictor of PEI (p < 0.0001). Overall, 54 patients (20%) developed disease progression. Patients with and without DM had similar progression free survival (PFS), whereas patients without PEI had better five-year-PFS (p = 0.002), although this association was not confirmed in multivariate analysis. The risk of DM and PEI after surgery for PanNEN is relatively high but it does not affect PFS. BMI and pancreatic head resection are independent predictors of DM and PEI, respectively.
Collapse
Affiliation(s)
- Valentina Andreasi
- Pancreatic Surgery Unit, Pancreas Translational & Clinical Research Center, San Raffaele Scientific Institute IRCCS, 20132 Milan, Italy.
- Faculty of Medicine and Surgery, "Vita-Salute San Raffaele" University, 20132 Milan, Italy.
| | - Stefano Partelli
- Pancreatic Surgery Unit, Pancreas Translational & Clinical Research Center, San Raffaele Scientific Institute IRCCS, 20132 Milan, Italy.
- Faculty of Medicine and Surgery, "Vita-Salute San Raffaele" University, 20132 Milan, Italy.
| | - Gabriele Capurso
- Biliopancreatic Endoscopy Unit, Pancreas Translational & Clinical Research Center, San Raffaele Scientific Institute IRCCS, 20132 Milan, Italy.
| | - Francesca Muffatti
- Pancreatic Surgery Unit, Pancreas Translational & Clinical Research Center, San Raffaele Scientific Institute IRCCS, 20132 Milan, Italy.
| | - Gianpaolo Balzano
- Pancreatic Surgery Unit, Pancreas Translational & Clinical Research Center, San Raffaele Scientific Institute IRCCS, 20132 Milan, Italy.
| | - Stefano Crippa
- Pancreatic Surgery Unit, Pancreas Translational & Clinical Research Center, San Raffaele Scientific Institute IRCCS, 20132 Milan, Italy.
- Faculty of Medicine and Surgery, "Vita-Salute San Raffaele" University, 20132 Milan, Italy.
| | - Massimo Falconi
- Pancreatic Surgery Unit, Pancreas Translational & Clinical Research Center, San Raffaele Scientific Institute IRCCS, 20132 Milan, Italy.
- Faculty of Medicine and Surgery, "Vita-Salute San Raffaele" University, 20132 Milan, Italy.
| |
Collapse
|