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Schröder W, Bruns CJ. [Surgical repair of hiatal hernia in antireflux surgery-With or without mesh?]. Chirurgie (Heidelb) 2024; 95:313-314. [PMID: 38402340 DOI: 10.1007/s00104-024-02055-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 02/05/2024] [Indexed: 02/26/2024]
Affiliation(s)
- W Schröder
- Klinik für Allgemein‑, Viszeral‑, Tumor- und Transplantationschirurgie, Universitätsklinik Köln, Kerpener Str. 62, 50937, Köln, Deutschland.
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2
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Schröder W, Bruns CJ. [Interval between neoadjuvant chemoradiotherapy and surgery for locally advanced esophageal cancer-When to operate?]. Chirurgie (Heidelb) 2024; 95:80-81. [PMID: 38051318 DOI: 10.1007/s00104-023-02003-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 11/14/2023] [Indexed: 12/07/2023]
Affiliation(s)
- W Schröder
- Klinik für Allgemein‑, Viszeral‑, Tumor- und Transplantationschirurgie, Universitätsklinik Köln, Kerpener Str. 62, 50937, Köln, Deutschland.
| | - C J Bruns
- Klinik für Allgemein‑, Viszeral‑, Tumor- und Transplantationschirurgie, Universitätsklinik Köln, Kerpener Str. 62, 50937, Köln, Deutschland
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Schiffmann LM, de Groot E, Albert MC, Quaas A, Pinto Dos Santos D, Babic B, Fuchs HF, Walczak H, Chon SH, Ruurda JP, Kashkar H, Bruns CJ, Schröder W, van Hillegersberg R. Laparoscopic ischemic conditioning of the stomach prior to esophagectomy induces gastric neo-angiogenesis. Eur J Surg Oncol 2023; 49:107096. [PMID: 37801834 DOI: 10.1016/j.ejso.2023.107096] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2023] [Revised: 09/20/2023] [Accepted: 09/25/2023] [Indexed: 10/08/2023]
Abstract
BACKGROUND The risk of an anastomotic leakage (AL) following Ivor-Lewis esophagectomy is increased in patients with calcifications of the aorta or a stenosis of the celiac trunc. Ischemic conditioning (ISCON) of the gastric conduit prior to esophagectomy is supposed to improve gastric vascularization at the anastomotic site. The prospective ISCON trial was conducted to proof the safety and feasibility of this strategy with partial gastric devascularization 14 days before esophagectomy in esophageal cancer patients with a compromised vascular status. This work reports the results from a translational project of the ISCON trial aimed to investigate variables of neo-angiogenesis. METHODS Twenty esophageal cancer patients scheduled for esophagectomy were included in the ISCON trial. Serum samples (n = 11) were collected for measurement of biomarkers and biopsies (n = 12) of the gastric fundus were taken before and after ISCON of the gastric conduit. Serum samples were analyzed including 62 different cytokines. Vascularization of the gastric mucosa was assessed on paraffin-embedded sections stained against CD34 to detect the degree of microvascular density and vessel size. RESULTS Between November 2019 and January 2022 patients were included in the ISCON Trial. While serum samples showed no differences regarding cytokine levels before and after ISCON biopsies of the gastric mucosa demonstrated a significant increase in microvascular density after ISCON as compared to the corresponding gastric sample before the intervention. CONCLUSION The data prove that ISCON of the gastric conduit as esophageal substitute induces significant neo-angiogenesis in the gastric fundus which is considered as surrogate of an improved vascularization at the anastomotic site.
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Affiliation(s)
- L M Schiffmann
- Department of General, Visceral, Cancer and Transplantation Surgery, Faculty of Medicine and University Hospital Cologne, University of Cologne, Cologne, Germany
| | - E de Groot
- Department of Surgery, University Medical Center Utrecht, POBOX 85500, 3508 GA, Utrecht, the Netherlands
| | - M C Albert
- Excellence Cluster on Cellular Stress Responses in Aging-Associated Diseases (CECAD), University of Cologne, Cologne, Germany; Center for Biochemistry, Faculty of Medicine and University Hospital of Cologne, Cologne, Germany
| | - A Quaas
- Institute of Pathology, Faculty of Medicine and University Hospital Cologne, University of Cologne, Germany
| | - D Pinto Dos Santos
- Institute of Diagnostic and Interventional Radiology, Medical Faculty and University Hospital Cologne, University of Cologne, Cologne, Germany
| | - B Babic
- Department of General, Visceral, Cancer and Transplantation Surgery, Faculty of Medicine and University Hospital Cologne, University of Cologne, Cologne, Germany
| | - H F Fuchs
- Department of General, Visceral, Cancer and Transplantation Surgery, Faculty of Medicine and University Hospital Cologne, University of Cologne, Cologne, Germany
| | - H Walczak
- Center for Biochemistry, Faculty of Medicine and University Hospital of Cologne, Cologne, Germany
| | - S-H Chon
- Department of General, Visceral, Cancer and Transplantation Surgery, Faculty of Medicine and University Hospital Cologne, University of Cologne, Cologne, Germany
| | - J P Ruurda
- Department of Surgery, University Medical Center Utrecht, POBOX 85500, 3508 GA, Utrecht, the Netherlands
| | - H Kashkar
- Excellence Cluster on Cellular Stress Responses in Aging-Associated Diseases (CECAD), University of Cologne, Cologne, Germany; Institute for Molecular Immunology, Faculty of Medicine and University Hospital of Cologne, University of Cologne, Cologne, Germany
| | - C J Bruns
- Department of General, Visceral, Cancer and Transplantation Surgery, Faculty of Medicine and University Hospital Cologne, University of Cologne, Cologne, Germany
| | - W Schröder
- Department of General, Visceral, Cancer and Transplantation Surgery, Faculty of Medicine and University Hospital Cologne, University of Cologne, Cologne, Germany
| | - R van Hillegersberg
- Department of Surgery, University Medical Center Utrecht, POBOX 85500, 3508 GA, Utrecht, the Netherlands.
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Schröder W, Damanakis AI, Bruns CJ. [Combined regression score for prediction of survival after neoadjuvant treatment of esophageal cancer]. Chirurgie (Heidelb) 2023; 94:810-811. [PMID: 37522986 DOI: 10.1007/s00104-023-01954-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 07/25/2023] [Indexed: 08/01/2023]
Affiliation(s)
- W Schröder
- Klinik für Allgemein‑, Viszeral‑, Tumor- und Transplantationschirurgie, Universitätsklinik Köln, Kerpener Str. 62, 50937, Köln, Deutschland.
| | - A I Damanakis
- Klinik für Allgemein‑, Viszeral‑, Tumor- und Transplantationschirurgie, Universitätsklinik Köln, Kerpener Str. 62, 50937, Köln, Deutschland
| | - C J Bruns
- Klinik für Allgemein‑, Viszeral‑, Tumor- und Transplantationschirurgie, Universitätsklinik Köln, Kerpener Str. 62, 50937, Köln, Deutschland
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Schröder W, Bruns CJ. [Body mass index as risk factor for postoperative morbidity and mortality following esophagectomy]. Chirurgie (Heidelb) 2023; 94:644-645. [PMID: 37308576 DOI: 10.1007/s00104-023-01905-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 05/22/2023] [Indexed: 06/14/2023]
Affiliation(s)
- W Schröder
- Klinik für Allgemein‑, Viszeral‑, Tumor- und Transplantationschirurgie, Universitätsklinik Köln, Kerpener Str. 62, 50937, Köln, Deutschland.
| | - C J Bruns
- Klinik für Allgemein‑, Viszeral‑, Tumor- und Transplantationschirurgie, Universitätsklinik Köln, Kerpener Str. 62, 50937, Köln, Deutschland
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6
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Schröder W, Bruns CJ. [Impact of surveillance on the oncological outcome following esophagectomy]. Chirurgie (Heidelb) 2023:10.1007/s00104-023-01930-w. [PMID: 37382608 DOI: 10.1007/s00104-023-01930-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Subscribe] [Scholar Register] [Accepted: 06/19/2023] [Indexed: 06/30/2023]
Affiliation(s)
- W Schröder
- Klinik für Allgemein‑, Viszeral‑, Tumor- und Transplantationschirurgie, Universitätsklinik Köln, Kerpener Str. 62, 50937, Köln, Deutschland.
| | - C J Bruns
- Klinik für Allgemein‑, Viszeral‑, Tumor- und Transplantationschirurgie, Universitätsklinik Köln, Kerpener Str. 62, 50937, Köln, Deutschland
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Damanakis AI, Gebauer F, Stapper A, Schlößer HA, Ghadimi M, Schmidt T, Schiffmann LM, Fuchs H, Zander T, Quaas A, Bruns CJ, Schroeder W. Combined regression score predicts outcome after neoadjuvant treatment of oesophageal cancer. Br J Cancer 2023; 128:2025-2035. [PMID: 36966235 PMCID: PMC10206077 DOI: 10.1038/s41416-023-02232-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2022] [Revised: 02/18/2023] [Accepted: 03/07/2023] [Indexed: 03/27/2023] Open
Abstract
BACKGROUND Histopathologic regression following neoadjuvant treatment (NT) of oesophageal cancer is a prognostic factor of survival, but the nodal status is not considered. Here, a score combining both to improve prediction of survival after neoadjuvant therapy is developed. METHODS Seven hundred and fifteen patients with oesophageal squamous cell (SCC) or adenocarcinoma (AC) undergoing NT and esophagectomy were analysed. Histopathologic response was classified according to percentage of vital residual tumour cells (VRTC): complete response (CR) without VRTC, major response with <10% VRTC, minor response with >10% VRTC. Nodal stage was classified as ypN0 and ypN+. Kaplan-Meier and Cox regression were used for survival analysis. RESULTS Survival analysis identified three groups with significantly different mortality risks: (1) low-risk group for CR (ypT0N0) with 72% 5-year overall survival (5y-OS), (2) intermediate-risk group for minor/major responders and ypN0 with 59% 5y-OS, and (3) high-risk group for minor/major responders and ypN+ with 20% 5y-OS (p < 0.001). Median survival in AC and SCC cohorts were comparable (3.8 (CI 95%: 3.1, 5.3) vs. 4.6 years (CI 95%: 3.3, not reached), p = 0.3). CONCLUSIONS Histopathologic regression and nodal status should be combined for estimating AC and SCC prognosis. Poor survival in the high-risk group highlights need for adjuvant therapy.
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Affiliation(s)
- A I Damanakis
- Department of General, Visceral, Cancer and Transplantation Surgery, Faculty of Medicine and University Hospital Cologne, University of Cologne, Cologne, Germany
| | - F Gebauer
- Department of General and Visceral Surgery, Helios University Hospital of Wuppertal, Wuppertal, Germany
| | - A Stapper
- Department of General, Visceral, Cancer and Transplantation Surgery, Faculty of Medicine and University Hospital Cologne, University of Cologne, Cologne, Germany
| | - H A Schlößer
- Department of General, Visceral, Cancer and Transplantation Surgery, Faculty of Medicine and University Hospital Cologne, University of Cologne, Cologne, Germany
- Center for Molecular Medicine Cologne, Faculty of Medicine and University Hospital Cologne, Cologne, Germany
| | - M Ghadimi
- Department of General Visceral and Endocrine Surgery, Stadt Soest Hospital, Soest, Germany
| | - T Schmidt
- Department of General, Visceral, Cancer and Transplantation Surgery, Faculty of Medicine and University Hospital Cologne, University of Cologne, Cologne, Germany
| | - L M Schiffmann
- Department of General, Visceral, Cancer and Transplantation Surgery, Faculty of Medicine and University Hospital Cologne, University of Cologne, Cologne, Germany
| | - H Fuchs
- Department of General, Visceral, Cancer and Transplantation Surgery, Faculty of Medicine and University Hospital Cologne, University of Cologne, Cologne, Germany
| | - T Zander
- Department I of Internal Medicine, Center for Integrated Oncology Aachen Bonn Cologne Duesseldorf, Gastrointestinal Cancer Group Cologne GCGC Faculty of Medicine and University Hospital Cologne, University of Cologne, Cologne, Germany
| | - A Quaas
- Institute of Pathology, Faculty of Medicine and University Hospital Cologne, University of Cologne, Cologne, Germany
| | - C J Bruns
- Department of General, Visceral, Cancer and Transplantation Surgery, Faculty of Medicine and University Hospital Cologne, University of Cologne, Cologne, Germany
| | - W Schroeder
- Department of General, Visceral, Cancer and Transplantation Surgery, Faculty of Medicine and University Hospital Cologne, University of Cologne, Cologne, Germany.
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8
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Thomas MN, Whaba R, Datta RR, Bunck AC, Stippel DL, Bruns CJ. [Management and treatment of liver injuries after blunt abdominal trauma]. Chirurgie (Heidelb) 2023:10.1007/s00104-023-01858-1. [PMID: 37142798 DOI: 10.1007/s00104-023-01858-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 03/08/2023] [Indexed: 05/06/2023]
Abstract
The liver is involved in about 20% of cases of blunt abdominal trauma. The management of liver trauma has changed significantly in the past three decades towards conservative treatment. Up to 80% of all liver trauma patients can now be successfully treated by nonoperative management. Decisive for this is the adequate screening and assessment of the patient and the injury pattern as well as the provision of the appropriate infrastructure. Hemodynamically unstable patients require immediate exploratory surgery. In hemodynamically stable patients, a contrast-enhanced computed tomography (CT) should be performed. If active bleeding is detected angiographic imaging and embolization should be performed to stop the bleeding. Even after initially successful conservative management of liver trauma, subsequent complications can occur that make surgical inpatient treatment necessary.
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Affiliation(s)
- M N Thomas
- Klinik für Allgemein‑, Viszeral‑, Tumor- und Transplantationschirurgie, Uniklinik Köln, Kerpener Straße 62, 50937, Köln, Deutschland.
| | - R Whaba
- Klinik für Allgemein‑, Viszeral‑, Tumor- und Transplantationschirurgie, Uniklinik Köln, Kerpener Straße 62, 50937, Köln, Deutschland
| | - R R Datta
- Klinik für Allgemein‑, Viszeral‑, Tumor- und Transplantationschirurgie, Uniklinik Köln, Kerpener Straße 62, 50937, Köln, Deutschland
| | - A C Bunck
- Institut für Diagnostische und Interventionelle Radiologie, Uniklinik Köln, Köln, Deutschland
| | - D L Stippel
- Klinik für Allgemein‑, Viszeral‑, Tumor- und Transplantationschirurgie, Uniklinik Köln, Kerpener Straße 62, 50937, Köln, Deutschland
| | - C J Bruns
- Klinik für Allgemein‑, Viszeral‑, Tumor- und Transplantationschirurgie, Uniklinik Köln, Kerpener Straße 62, 50937, Köln, Deutschland
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Dikshit KV, Visal AM, Janssen F, Larsen A, Bruns CJ. Pressure-Sensitive Supramolecular Adhesives Based on Lipoic Acid and Biofriendly Dynamic Cyclodextrin and Polyrotaxane Cross-Linkers. ACS Appl Mater Interfaces 2023; 15:17256-17267. [PMID: 36926820 DOI: 10.1021/acsami.3c00927] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/18/2023]
Abstract
Slide-ring materials are polymer networks with mobile cross-links that exhibit impressive stress dissipation and fracture resistance owing to the pulley effect. On account of their remarkable ability to dissipate the energy of deformation, these materials have found their way into advanced materials such as abrasion-resistant coatings and elastic battery electrode binders. In this work, we explore the role of mobile cross-links on the properties of a biofriendly pressure-sensitive adhesive made using composites of cyclodextrin-based macromolecules and poly(lipoic acid). We modify cyclodextrin-based hosts and polyrotaxanes with pendant groups of lipoic acid (a commonly ingested antioxidant) to incorporate them as cross-links in poly(lipoic acid) networks obtained by simple heating in open air. By systematically varying the adhesive formulations while probing their mechanical and adhesive properties, we uncover trends in structure-property relationships that enable one to tune network properties and access biofriendly, high-tack adhesives.
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Affiliation(s)
- Karan Vivek Dikshit
- Materials Science and Engineering, University of Colorado Boulder, Boulder, Colorado 80303, United States
| | - Aseem Milind Visal
- Materials Science and Engineering, University of Colorado Boulder, Boulder, Colorado 80303, United States
| | - Femke Janssen
- Chemical and Biological Engineering, University of Colorado Boulder, Boulder, Colorado 80303, United States
| | - Alexander Larsen
- Paul M. Rady Department of Mechanical Engineering, University of Colorado Boulder, Boulder, Colorado 80309, United States
| | - Carson J Bruns
- Paul M. Rady Department of Mechanical Engineering, University of Colorado Boulder, Boulder, Colorado 80309, United States
- ATLAS Institute, University of Colorado Boulder, Boulder, Colorado 80309, United States
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10
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Lamont SC, Weishaar K, Bruns CJ, Vernerey FJ. Micromechanics and damage in slide-ring networks. Phys Rev E 2023; 107:044501. [PMID: 37198829 DOI: 10.1103/physreve.107.044501] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2023] [Accepted: 04/01/2023] [Indexed: 05/19/2023]
Abstract
We explore the mechanics and damage of slide-ring gels by developing a discrete model for the mechanics of chain-ring polymer systems that accounts for both crosslink motion and internal chain sliding. The proposed framework utilizes an extendable Langevin chain model to describe the constitutive behavior of polymer chains undergoing large deformation and includes a rupture criterion to innately capture damage. Similarly, crosslinked rings are described as large molecules that also store enthalpic energy during deformation and thus have their own rupture criterion. Using this formalism, we show that the realized mode of damage in a slide-ring unit is a function of the loading rate, distribution of segments, and inclusion ratio (number of rings per chain). After analyzing an ensemble of representative units under different loading conditions, we find that failure is driven by damage to crosslinked rings at slow loading rates, but polymer chain scission at fast loading rates. Our results indicate that increasing the strength of the crosslinked rings may improve the toughness of the material.
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Affiliation(s)
- Samuel C Lamont
- Paul M. Rady Department of Mechanical Engineering, University of Colorado at Boulder, Boulder, Colorado 80309, USA
| | - Kyle Weishaar
- Paul M. Rady Department of Mechanical Engineering, University of Colorado at Boulder, Boulder, Colorado 80309, USA
| | - Carson J Bruns
- Paul M. Rady Department of Mechanical Engineering, University of Colorado at Boulder, Boulder, Colorado 80309, USA
| | - Franck J Vernerey
- Paul M. Rady Department of Mechanical Engineering, University of Colorado at Boulder, Boulder, Colorado 80309, USA
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Stolze T, Franke S, Haybaeck J, Moehler M, Grimminger PP, Lang H, Roth W, Gockel I, Kreuser N, Bläker H, Wittekind C, Lordick F, Vieth M, Veits L, Waidmann O, Lingohr P, Peitz U, Schildberg C, Kruschewski M, Vassos N, Goni E, Bruns CJ, Ridwelski K, Wolff S, Lippert H, Schumacher J, Malfertheiner P, Venerito M. Mismatch repair deficiency, chemotherapy and survival for resectable gastric cancer: an observational study from the German staR cohort and a meta-analysis. J Cancer Res Clin Oncol 2023; 149:1007-1017. [PMID: 35211781 PMCID: PMC9984318 DOI: 10.1007/s00432-022-03953-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2021] [Accepted: 02/08/2022] [Indexed: 12/24/2022]
Abstract
PURPOSE In a post hoc analysis of the MAGIC trial, patients with curatively resected gastric cancer (GC) and mismatch repair (MMR) deficiency (MMRd) had better median overall survival (OS) when treated with surgery alone but worse median OS when treated with additional chemotherapy. Further data are required to corroborate these findings. METHODS Between April 2013 and December 2018, 458 patients with curatively resected GC, including cancers of the esophagogastric junction Siewert type II and III, were identified in the German centers of the staR consortium. Tumor sections were assessed for expression of MLH1, MSH2, MSH6 and PMS2 by immunohistochemistry. The association between MMR status and survival was assessed. Similar studies published up to January 2021 were then identified in a MEDLINE search for a meta-analysis. RESULTS MMR-status and survival data were available for 223 patients (median age 66 years, 62.8% male), 23 patients were MMRd (10.3%). After matching for baseline clinical characteristics, median OS was not reached in any subgroup. Compared to perioperative chemotherapy, patients receiving surgery alone with MMRd and MMRp had a HR of 0.67 (95% CI 0.13-3.37, P = 0.63) and 1.44 (95% CI 0.66-3.13, P = 0.36), respectively. The meta-analysis included pooled data from 385 patients. Compared to perioperative chemotherapy, patients receiving surgery alone with MMRd had an improved OS with a HR of 0.36 (95% CI 0.14-0.91, P = 0.03), whereas those with MMRp had a HR of 1.18 (95% CI 0.89-1.58, P = 0.26). CONCLUSION Our data support a positive prognostic effect for MMRd in GC patients treated with surgery only and a differentially negative prognostic effect in patients treated with perioperative chemotherapy. MMR status determined by preoperative biopsies may be used as a predictive biomarker to select patients for perioperative chemotherapy in curatively resectable GC.
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Affiliation(s)
- T Stolze
- Department of Gastroenterology, Hepatology and Infectious Diseases, Otto-von-Guericke University Hospital Magdeburg, Magdeburg, Germany
| | - S Franke
- Institute of Pathology, Otto-von-Guericke University Hospital Magdeburg, Magdeburg, Germany
| | - J Haybaeck
- Institute of Pathology, Otto-von-Guericke University Hospital Magdeburg, Magdeburg, Germany.,Institute of Pathology, Neuropathology and Molecular Pathology, Medical University of Innsbruck, Innsbruck, Austria.,Diagnostic and Research Center for Molecular BioMedicine, Institute of Pathology, Medical University Graz, Graz, Austria
| | - M Moehler
- Department of Internal Medicine I, Johannes Gutenberg-University of Mainz, Mainz, Germany
| | - P P Grimminger
- Department of General, Visceral and Transplant Surgery, Johannes Gutenberg-University of Mainz, Mainz, Germany
| | - H Lang
- Department of General, Visceral and Transplant Surgery, Johannes Gutenberg-University of Mainz, Mainz, Germany
| | - W Roth
- Institute of Pathology, University Hospital Mainz, Mainz, Germany
| | - I Gockel
- Department of Medicine II and University Cancer Center Leipzig (UCCL), Leipzig University Medical Center, Leipzig, Germany
| | - N Kreuser
- Department of Medicine II and University Cancer Center Leipzig (UCCL), Leipzig University Medical Center, Leipzig, Germany
| | - H Bläker
- Institute of Pathology, University Hospital Leipzig, Leipzig, Germany
| | - C Wittekind
- Institute of Pathology, University Hospital Leipzig, Leipzig, Germany
| | - F Lordick
- University Cancer Center Leipzig, University Hospital Leipzig, Leipzig, Germany
| | - M Vieth
- Institute of Pathology, Friedrich-Alexander University Erlangen-Nuremberg, Klinikum Bayreuth, Bayreuth, Germany
| | - L Veits
- Institute of Pathology, Friedrich-Alexander University Erlangen-Nuremberg, Klinikum Bayreuth, Bayreuth, Germany
| | - O Waidmann
- Department of Internal Medicine 1, Main Area Gastroenterology and Hepatology, University Hospital Frankfurt, Frankfurt am Main, Germany.,University Cancer Center, University Hospital Frankfurt, Frankfurt am Main, Germany
| | - P Lingohr
- Department of General, Visceral, Thoracic and Vascular Surgery, University Hospital Bonn, Bonn, Germany
| | - U Peitz
- Department of Gastroenterology, Raphaelshospital, Münster, Germany
| | - C Schildberg
- Department of General and Visceral Surgery, Brandenburg, University Hospital of Visceral Surgery, Brandenburg, Germany
| | - M Kruschewski
- Department of General and Visceral Surgery, Hospital Frankfurt (Oder), Frankfurt (Oder), Germany
| | - N Vassos
- Division of Surgical Oncology and Thoracic Surgery, Department of Surgery, University Medical Center Mannheim, University of Heidelberg, Mannheim, Germany
| | - E Goni
- Department of Medicine II, University Hospital, LMU Munich, Munich, Germany
| | - C J Bruns
- Department of General, Tumor and Transplantation Surgery, University Hospital Cologne, Köln, Germany
| | - K Ridwelski
- Department of General and Visceral Surgery, Municipal Hospital, Magdeburg, Germany.,AN-Institute of Quality Assurance in Operative Medicine, Otto-von-Guericke University Hospital, Magdeburg, Germany
| | - S Wolff
- Department of General, Visceral, Vascular and Transplantation Surgery, Otto-von-Guericke University Hospital, Magdeburg, Germany
| | - H Lippert
- AN-Institute of Quality Assurance in Operative Medicine, Otto-von-Guericke University Hospital, Magdeburg, Germany.,Department of General, Visceral, Vascular and Transplantation Surgery, Otto-von-Guericke University Hospital, Magdeburg, Germany
| | - J Schumacher
- Human Genetics Center, Philipps University of Marburg, Marburg, Germany
| | - P Malfertheiner
- Department of Gastroenterology, Hepatology and Infectious Diseases, Otto-von-Guericke University Hospital Magdeburg, Magdeburg, Germany.,Department of Medicine II, University Hospital, LMU Munich, Munich, Germany
| | - M Venerito
- Department of Gastroenterology, Hepatology and Infectious Diseases, Otto-von-Guericke University Hospital Magdeburg, Magdeburg, Germany. .,Department of Gastroenterology, Hepatology and Infectious Diseases, Medizinische Fakultät der Otto-Von-Guericke-Universität, Leipziger Straße 66, 39120, Magdeburg, Germany.
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12
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Schröder W, Fuchs H, Bruns CJ. [Technical modifications and outcome of the robot-assisted minimally-invasive esophagectomy (RAMIE)]. Chirurgie (Heidelb) 2023; 94:174-175. [PMID: 36658337 DOI: 10.1007/s00104-023-01816-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 01/16/2023] [Indexed: 01/21/2023]
Affiliation(s)
- W Schröder
- Klinik für Allgemein‑, Viszeral-, Tumor- und Transplantationschirurgie, Universitätsklinik Köln, Kerpener Str. 62, 50937, Köln, Deutschland.
| | - H Fuchs
- Klinik für Allgemein‑, Viszeral-, Tumor- und Transplantationschirurgie, Universitätsklinik Köln, Kerpener Str. 62, 50937, Köln, Deutschland
| | - C J Bruns
- Klinik für Allgemein‑, Viszeral-, Tumor- und Transplantationschirurgie, Universitätsklinik Köln, Kerpener Str. 62, 50937, Köln, Deutschland
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13
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Atreya M, Desousa S, Kauzya J, Williams E, Hayes A, Dikshit K, Nielson J, Palmgren A, Khorchidian S, Liu S, Gopalakrishnan A, Bihar E, Bruns CJ, Bardgett R, Quinton JN, Davies J, Neff JC, Whiting GL. A Transient Printed Soil Decomposition Sensor Based on a Biopolymer Composite Conductor. Adv Sci (Weinh) 2023; 10:e2205785. [PMID: 36507571 PMCID: PMC9929122 DOI: 10.1002/advs.202205785] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/05/2022] [Revised: 11/19/2022] [Indexed: 06/18/2023]
Abstract
Soil health is one of the key factors in determining the sustainability of global agricultural systems and the stability of natural ecosystems. Microbial decomposition activity plays an important role in soil health; and gaining spatiotemporal insights into this attribute is critical for understanding soil function as well as for managing soils to ensure agricultural supply, stem biodiversity loss, and mitigate climate change. Here, a novel in situ electronic soil decomposition sensor that relies on the degradation of a printed conductive composite trace utilizing the biopolymer poly(3-hydroxybutyrate-co-3-hydroxyvalerate) as a binder is presented. This material responds selectively to microbially active environments with a continuously varying resistive signal that can be readily instrumented with low-cost electronics to enable wide spatial distribution. In soil, a correlation between sensor response and intensity of microbial decomposition activity is observed and quantified by comparison with respiration rates over 14 days, showing that devices respond predictably to both static conditions and perturbations in general decomposition activity.
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Affiliation(s)
- Madhur Atreya
- Paul M. Rady Department of Mechanical EngineeringUniversity of Colorado Boulder1111 Engineering Drive, UCB 427BoulderCO80309‐0427USA
| | - Stacie Desousa
- Environmental StudiesUniversity of Colorado Boulder4001 Discovery Drive, 397 UCBBoulderCO80303‐0397USA
| | - John‐Baptist Kauzya
- Paul M. Rady Department of Mechanical EngineeringUniversity of Colorado Boulder1111 Engineering Drive, UCB 427BoulderCO80309‐0427USA
| | - Evan Williams
- Department of ElectricalComputerand Energy EngineeringUniversity of Colorado Boulder1111 Engineering Dr, 425 UCBBoulderCO80309USA
| | - Austin Hayes
- Paul M. Rady Department of Mechanical EngineeringUniversity of Colorado Boulder1111 Engineering Drive, UCB 427BoulderCO80309‐0427USA
| | - Karan Dikshit
- Materials Science and Engineering ProgramUniversity of Colorado Boulder4001 Discovery Dr, 613 UCBBoulderCO80303USA
| | - Jenna Nielson
- Department of Chemical and Biological EngineeringUniversity of Colorado Boulder1111 Engineering Dr, 596 UCBBoulderCO80309USA
| | - Abigail Palmgren
- Department of Chemical and Biological EngineeringUniversity of Colorado Boulder1111 Engineering Dr, 596 UCBBoulderCO80309USA
| | - Sara Khorchidian
- Paul M. Rady Department of Mechanical EngineeringUniversity of Colorado Boulder1111 Engineering Drive, UCB 427BoulderCO80309‐0427USA
| | - Shangshi Liu
- Department of Earth and Environmental SciencesThe University of ManchesterWilliamson BuildingManchesterM13 9PYUK
| | - Anupam Gopalakrishnan
- Materials Science and Engineering ProgramUniversity of Colorado Boulder4001 Discovery Dr, 613 UCBBoulderCO80303USA
| | - Eloise Bihar
- Paul M. Rady Department of Mechanical EngineeringUniversity of Colorado Boulder1111 Engineering Drive, UCB 427BoulderCO80309‐0427USA
| | - Carson J. Bruns
- Paul M. Rady Department of Mechanical EngineeringUniversity of Colorado Boulder1111 Engineering Drive, UCB 427BoulderCO80309‐0427USA
| | - Richard Bardgett
- Department of Earth and Environmental SciencesThe University of ManchesterWilliamson BuildingManchesterM13 9PYUK
| | - John N. Quinton
- Lancaster Environment CentreLancaster UniversityUniversityLibrary Ave, BailriggLancasterLA1 4YQUK
| | - Jessica Davies
- Lancaster Environment CentreLancaster UniversityUniversityLibrary Ave, BailriggLancasterLA1 4YQUK
| | - Jason C. Neff
- Environmental StudiesUniversity of Colorado Boulder4001 Discovery Drive, 397 UCBBoulderCO80303‐0397USA
| | - Gregory L. Whiting
- Paul M. Rady Department of Mechanical EngineeringUniversity of Colorado Boulder1111 Engineering Drive, UCB 427BoulderCO80309‐0427USA
- Materials Science and Engineering ProgramUniversity of Colorado Boulder4001 Discovery Dr, 613 UCBBoulderCO80303USA
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14
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Thomas MN, Datta RR, Wahba R, Buchner D, Chiapponi C, Kurschat C, Grundmann F, Urbanski A, Tolksdorf S, Müller R, Henze J, Petrescu-Jipa VM, Meyer F, Bruns CJ, Stippel DL. Introduction of laparoscopic nephrectomy for autosomal dominant polycystic kidney disease as the standard procedure. Langenbecks Arch Surg 2023; 408:8. [PMID: 36602631 PMCID: PMC9816232 DOI: 10.1007/s00423-022-02737-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2022] [Accepted: 10/18/2022] [Indexed: 01/06/2023]
Abstract
PURPOSE Autosomal dominant polycystic kidney disease (ADPKD) is a common hereditary disorder and accounts for 5-10% of all cases of kidney failure. 50% of ADPKD patients reach kidney failure by the age of 58 years requiring dialysis or transplantation. Nephrectomy is performed in up to 20% of patients due to compressive symptoms, renal-related complications or in preparation for kidney transplantation. However, due to the large kidney size in ADPKD, nephrectomy can come with a considerable burden. Here we evaluate our institution's experience of laparoscopic nephrectomy (LN) as an alternative to open nephrectomy (ON) for ADPKD patients. MATERIALS AND METHODS We report the results of the first 12 consecutive LN for ADPKD from August 2020 to August 2021 in our institution. These results were compared with the 12 most recent performed ON for ADPKD at the same institution (09/2017 to 07/2020). Intra- and postoperative parameters were collected and analyzed. Health related quality of life (HRQoL) was assessed using the SF36 questionnaire. RESULTS Age, sex, and median preoperative kidney volumes were not significantly different between the two analyzed groups. Intraoperative estimated blood loss was significantly less in the laparoscopic group (33 ml (0-200 ml)) in comparison to the open group (186 ml (0-800 ml)) and postoperative need for blood transfusion was significantly reduced in the laparoscopic group (p = 0.0462). Operative time was significantly longer if LN was performed (158 min (85-227 min)) compared to the open procedure (107 min (56-174 min)) (p = 0.0079). In both groups one postoperative complication Clavien Dindo ≥ 3 occurred with the need of revision surgery. SF36 HRQol questionnaire revealed excellent postoperative quality of life after LN. CONCLUSION LN in ADPKD patients is a safe and effective operative procedure independent of kidney size with excellent postoperative outcomes and benefits of minimally invasive surgery. Compared with the open procedure patients profit from significantly less need for transfusion with comparable postoperative complication rates. However significant longer operation times need to be taken in account.
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Affiliation(s)
- M N Thomas
- Department of General-, Visceral-, Tumor- and Transplantation Surgery, University of Cologne, Faculty of Medicine and University Hospital of Cologne, University Hospital of Cologne, Cologne, Germany.
| | - R R Datta
- Department of General-, Visceral-, Tumor- and Transplantation Surgery, University of Cologne, Faculty of Medicine and University Hospital of Cologne, University Hospital of Cologne, Cologne, Germany
| | - R Wahba
- Department of General-, Visceral-, Tumor- and Transplantation Surgery, University of Cologne, Faculty of Medicine and University Hospital of Cologne, University Hospital of Cologne, Cologne, Germany
| | - D Buchner
- Department of General-, Visceral-, Tumor- and Transplantation Surgery, University of Cologne, Faculty of Medicine and University Hospital of Cologne, University Hospital of Cologne, Cologne, Germany
| | - C Chiapponi
- Department of General-, Visceral-, Tumor- and Transplantation Surgery, University of Cologne, Faculty of Medicine and University Hospital of Cologne, University Hospital of Cologne, Cologne, Germany
| | - C Kurschat
- Department II of Internal Medicine and Center for Molecular Medicine Cologne, University of Cologne, Faculty of Medicine and University Hospital of Cologne, Cologne, Germany
| | - F Grundmann
- Department II of Internal Medicine and Center for Molecular Medicine Cologne, University of Cologne, Faculty of Medicine and University Hospital of Cologne, Cologne, Germany
| | - A Urbanski
- Department of General-, Visceral-, Tumor- and Transplantation Surgery, University of Cologne, Faculty of Medicine and University Hospital of Cologne, University Hospital of Cologne, Cologne, Germany
| | - S Tolksdorf
- Department of General-, Visceral-, Tumor- and Transplantation Surgery, University of Cologne, Faculty of Medicine and University Hospital of Cologne, University Hospital of Cologne, Cologne, Germany
| | - R Müller
- Department II of Internal Medicine and Center for Molecular Medicine Cologne, University of Cologne, Faculty of Medicine and University Hospital of Cologne, Cologne, Germany
| | - J Henze
- Department of Radiology, University of Cologne, Faculty of Medicine and University Hospital of Cologne, University Hospital of Cologne, Cologne, Germany
| | - V-M Petrescu-Jipa
- Department of Transfusionsmedizin, University of Cologne, Cologne, Germany
| | - F Meyer
- Department of Radiology, University of Cologne, Faculty of Medicine and University Hospital of Cologne, University Hospital of Cologne, Cologne, Germany
| | - C J Bruns
- Department of General-, Visceral-, Tumor- and Transplantation Surgery, University of Cologne, Faculty of Medicine and University Hospital of Cologne, University Hospital of Cologne, Cologne, Germany
| | - D L Stippel
- Department of General-, Visceral-, Tumor- and Transplantation Surgery, University of Cologne, Faculty of Medicine and University Hospital of Cologne, University Hospital of Cologne, Cologne, Germany
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15
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Bruns CJ, Wang W, Hirose K. Editorial: Advances in mechanically bonded molecules. Front Chem 2022; 10:1095082. [PMID: 36561142 PMCID: PMC9763993 DOI: 10.3389/fchem.2022.1095082] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2022] [Accepted: 11/14/2022] [Indexed: 12/12/2022] Open
Affiliation(s)
- Carson J. Bruns
- University of Colorado Boulder, Boulder, CO, United States,*Correspondence: Carson J. Bruns, ; Wei Wang, ; Keiji Hirose,
| | - Wei Wang
- East China Normal University, Shanghai, China,*Correspondence: Carson J. Bruns, ; Wei Wang, ; Keiji Hirose,
| | - Keiji Hirose
- Osaka University, Osaka, Japan,*Correspondence: Carson J. Bruns, ; Wei Wang, ; Keiji Hirose,
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16
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Affiliation(s)
- Carson J Bruns
- ATLAS Institute, University of Colorado Boulder, Boulder, CO, USA.
- Paul M. Rady Department of Mechanical Engineering, University of Colorado Boulder, Boulder, CO, USA.
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17
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Brunner S, Bruns CJ. [71/m-Dysphagia, loss of weight and inappetence : Preparation for the medical specialist examination: part 21]. Chirurgie (Heidelb) 2022; 93:95-99. [PMID: 36127481 DOI: 10.1007/s00104-022-01725-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 08/22/2022] [Indexed: 06/15/2023]
Affiliation(s)
- S Brunner
- Klinik für Allgemein‑, Viszeral‑, Tumor- und Transplantationschirurgie, Universitätsklinik Köln, Kerpener Str. 62, 50935, Köln, Deutschland.
| | - C J Bruns
- Klinik für Allgemein‑, Viszeral‑, Tumor- und Transplantationschirurgie, Universitätsklinik Köln, Kerpener Str. 62, 50935, Köln, Deutschland
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18
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Datta RR, Bohle J, Bruns CJ. [51/m-Recurrent unspecific upper abdominal complaints and weight loss : Preparation for the medical specialist examination: part 17]. Chirurgie (Heidelb) 2022; 93:75-80. [PMID: 36194271 DOI: 10.1007/s00104-022-01731-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 09/05/2022] [Indexed: 06/16/2023]
Affiliation(s)
- R R Datta
- Klinik und Poliklinik für Allgemein‑, Viszeral‑, Tumor- und Transplantationschirurgie, Uniklinik Köln, Kerpener Str. 62, 50937, Köln, Deutschland.
| | - J Bohle
- Klinik und Poliklinik für Allgemein‑, Viszeral‑, Tumor- und Transplantationschirurgie, Uniklinik Köln, Kerpener Str. 62, 50937, Köln, Deutschland
| | - C J Bruns
- Klinik und Poliklinik für Allgemein‑, Viszeral‑, Tumor- und Transplantationschirurgie, Uniklinik Köln, Kerpener Str. 62, 50937, Köln, Deutschland
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19
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Schröder W, Bruns CJ. [Sarcopenia as prognostic factor of overall survival in esophageal cancer patients]. Chirurgie (Heidelb) 2022; 93:1192-1193. [PMID: 36369381 DOI: 10.1007/s00104-022-01756-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 10/13/2022] [Indexed: 06/16/2023]
Affiliation(s)
- W Schröder
- Klinik für Allgemein‑, Viszeral-, Tumor- und Transplantationschirurgie, Universitätsklinik Köln, Kerpener Str. 62, 50937, Köln, Deutschland.
| | - C J Bruns
- Klinik für Allgemein‑, Viszeral-, Tumor- und Transplantationschirurgie, Universitätsklinik Köln, Kerpener Str. 62, 50937, Köln, Deutschland
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20
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Abstract
The cycloparaphenylene (CPP) nanocarbons are an appealing family of macrocyclic organic semiconductors with size-tunable structures and unique optoelectronic properties, which can be further modulated by complexation with guest molecules. While many π-π-stabilized CPP-fullerene host-guest complexes are known, CPPs can also host polycyclic guests stabilized by aromatic CH-π interactions. Here we combine experimental and computational results to report that CH-π interactions can also be tapped to include redox-active metallocene guests in [8]cycloparaphenylene ([8]CPP). Oxidation of a metallocene guest is accompanied by an increase in binding affinity and tilt angle. Crystallographically determined solid-state structures reveal CH-π interactions in the ferrocene complex (Fc⊂[8]CPP) and additional π-π interactions in the cobaltocenium complex (CoCp2+⊂[8]CPP). Functionalizing Fc with oxygen-bearing side chains also improves complex stability to a similar extent as oxidation, due to the formation of CH-O hydrogen bonds with the host's p-phenylene units. This work shows that CH-π bonding can be generalized as a driving force for CPP host-guest complexes and combined with other supramolecular forces to enhance stability. Owing to their semiconducting nature, amenability to functionalization, and reversible redox-dependent behavior, the [8]CPP-metallocene host-guest complexes may expand the library of synthons available for designing bespoke nanoelectronics and artificial molecular machines.
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Affiliation(s)
- Hyejin Kwon
- Department of Mechanical Engineering, University of Colorado Boulder, 1111 Engineering Drive, 427 UCB, Boulder, CO 80309, USA
| | - Brian S Newell
- Materials and Molecular Analysis Center, Analytical Resources Core, Colorado State University, 200 W. Lake Street, Fort Collins, CO 80523, USA
| | - Carson J Bruns
- Department of Mechanical Engineering, University of Colorado Boulder, 1111 Engineering Drive, 427 UCB, Boulder, CO 80309, USA
- ATLAS Institute, University of Colorado Boulder, 1125 18th Street, 320 UCB, Boulder, CO 80309, USA.
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21
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Schröder W, Bruns CJ. [Long-term results after laparoscopic distal gastrectomy for locally advanced cancer]. Chirurgie (Heidelb) 2022; 93:999-1000. [PMID: 36036251 DOI: 10.1007/s00104-022-01721-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 08/16/2022] [Indexed: 06/15/2023]
Affiliation(s)
- W Schröder
- Klinik für Allgemein‑, Viszeral- und Tumorchirurgie, Universitätsklinik Köln, Kerpener Str. 62, 50937, Köln, Deutschland.
| | - C J Bruns
- Klinik für Allgemein‑, Viszeral- und Tumorchirurgie, Universitätsklinik Köln, Kerpener Str. 62, 50937, Köln, Deutschland
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22
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Schröder W, Bruns CJ. [Totally minimally invasive, hybrid or open Ivor Lewis esophagectomy-What is the surgical standard?]. Chirurgie (Heidelb) 2022; 93:910-911. [PMID: 35881158 DOI: 10.1007/s00104-022-01693-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 07/15/2022] [Indexed: 06/15/2023]
Affiliation(s)
- W Schröder
- Klinik für Allgemein‑, Viszeral‑, Tumor- und Transplantationschirurgie, Universitätsklinik Köln, Kerpener Str. 62, 50937, Köln, Deutschland.
| | - C J Bruns
- Klinik für Allgemein‑, Viszeral‑, Tumor- und Transplantationschirurgie, Universitätsklinik Köln, Kerpener Str. 62, 50937, Köln, Deutschland
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23
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Schröder W, Bruns CJ. [Bariatric surgery reduce cancer-associated mortality in obese patients]. Chirurgie (Heidelb) 2022; 93:813-814. [PMID: 35821303 DOI: 10.1007/s00104-022-01686-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 07/04/2022] [Indexed: 06/15/2023]
Affiliation(s)
- W Schröder
- Klinik für Allgemein‑, Viszeral- und Tumorchirurgie, Universitätsklinik Köln, Kerpener Str. 62, 50937, Köln, Deutschland.
| | - C J Bruns
- Klinik für Allgemein‑, Viszeral- und Tumorchirurgie, Universitätsklinik Köln, Kerpener Str. 62, 50937, Köln, Deutschland
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24
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Schröder W, Bruns CJ. [Surgical treatment of gastroesophageal reflux-Nissen or Toupet fundoplication?]. Chirurgie (Heidelb) 2022; 93:717-718. [PMID: 35771269 DOI: 10.1007/s00104-022-01666-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 05/30/2022] [Indexed: 06/15/2023]
Affiliation(s)
- W Schröder
- Klinik für Allgemein‑, Viszeral‑, Tumor‑ und Transplantationschirurgie, Universitätsklinik Köln, Kerpener Str. 62, 50937, Köln, Deutschland.
| | - C J Bruns
- Klinik für Allgemein‑, Viszeral‑, Tumor‑ und Transplantationschirurgie, Universitätsklinik Köln, Kerpener Str. 62, 50937, Köln, Deutschland
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25
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Thomas MN, Dieplinger G, Datta RR, Kleinert R, Fuchs HF, Bunck A, Peterhans M, Bruns CJ, Stippel D, Wahba R. Navigated laparoscopic microwave ablation of tumour mimics in pig livers: a randomized ex-vivo experimental trial. Surg Endosc 2021; 35:6763-6769. [PMID: 33289054 PMCID: PMC8599321 DOI: 10.1007/s00464-020-08180-5] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2020] [Accepted: 11/15/2020] [Indexed: 12/13/2022]
Abstract
BACKGROUND In order to efficiently perform laparoscopic microwave ablation of liver tumours precise positioning of the ablation probe is mandatory. This study evaluates the precision and ablation accuracy using the innovative laparoscopic stereotactic navigation system CAS-One-SPOT in comparison to 2d ultrasound guided laparoscopic ablation procedures. METHODS In a pig liver ablation model four surgeons, experienced (n = 2) and inexperienced (n = 2) in laparoscopic ablation procedures, were randomized for 2d ultrasound guided laparoscopic or stereotactic navigated laparoscopic ablation procedures. Each surgeon performed a total of 20 ablations. Total attempts of needle placements, time from tumor localization till beginning of ablation and ablation accuracy were analyzed. RESULTS The use of the laparoscopic stereotactic navigation system led to a significant reduction in total attempts of needle placement. The experienced group of surgeons reduced the mean number of attempts from 2.75 ± 2.291 in the 2d ultrasound guided ablation group to 1.45 ± 1.191 (p = 0.0302) attempts in the stereotactic navigation group. Comparable results could be observed in the inexperienced group with a reduction of 2.5 ± 1.50 to 1.15 ± 0.489 (p = 0.0005). This was accompanied by a significant time saving from 101.3 ± 112.1 s to 48.75 ± 27.76 s (p = 0.0491) in the experienced and 165.5 ± 98.9 s to 66.75 ± 21.96 s (p < 0.0001) in the inexperienced surgeon group. The accuracy of the ablation process was hereby not impaired as postinterventional sectioning of the ablation zone revealed. CONCLUSION The use of a stereotactic navigation system for laparoscopic microwave ablation procedures of liver tumors significantly reduces the attempts and time of predicted correct needle placement for novices and experienced surgeons without impairing the accuracy of the ablation procedure.
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Affiliation(s)
- M N Thomas
- Department of General, Visceral, Cancer and Transplant Surgery, University of Cologne, Faculty of Medicine and University Hospital Cologne, Kerpener Straße 62, 50937, Cologne, Germany.
| | - G Dieplinger
- Department of General, Visceral, Cancer and Transplant Surgery, University of Cologne, Faculty of Medicine and University Hospital Cologne, Kerpener Straße 62, 50937, Cologne, Germany
| | - R R Datta
- Department of General, Visceral, Cancer and Transplant Surgery, University of Cologne, Faculty of Medicine and University Hospital Cologne, Kerpener Straße 62, 50937, Cologne, Germany
| | - R Kleinert
- Department of General, Visceral, Cancer and Transplant Surgery, University of Cologne, Faculty of Medicine and University Hospital Cologne, Kerpener Straße 62, 50937, Cologne, Germany
| | - H F Fuchs
- Department of General, Visceral, Cancer and Transplant Surgery, University of Cologne, Faculty of Medicine and University Hospital Cologne, Kerpener Straße 62, 50937, Cologne, Germany
| | - A Bunck
- Department of Diagnostic and Interventional Radiology, University of Cologne, Faculty of Medicine and University Hospital Cologne, Cologne, Germany
| | | | - C J Bruns
- Department of General, Visceral, Cancer and Transplant Surgery, University of Cologne, Faculty of Medicine and University Hospital Cologne, Kerpener Straße 62, 50937, Cologne, Germany
| | - D Stippel
- Department of General, Visceral, Cancer and Transplant Surgery, University of Cologne, Faculty of Medicine and University Hospital Cologne, Kerpener Straße 62, 50937, Cologne, Germany
| | - R Wahba
- Department of General, Visceral, Cancer and Transplant Surgery, University of Cologne, Faculty of Medicine and University Hospital Cologne, Kerpener Straße 62, 50937, Cologne, Germany
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26
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Zhou X, Kwon H, Thompson RR, Herman RJ, Fronczek FR, Bruns CJ, Lee S. Scalable synthesis of [8]cycloparaphenyleneacetylene carbon nanohoop using alkyne metathesis. Chem Commun (Camb) 2021; 57:10887-10890. [PMID: 34604870 DOI: 10.1039/d1cc04776k] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Large scale synthesis of cycloparaphenyleneacetylenes has been challenging due to low macrocyclization yields and harsh aromatization methods that often decompose strained alkynes. Herein, a cis-stilbene-based building block is subjected to alkyne metathesis macrocylization. The following sequence of alkene-selective bromination and dehydrobromination afforded a [8]cycloparaphenyleneacetylene derivative in high yield with good scalability. X-Ray crystal structure and computational analysis revealed a unique same-rim conformation for the eight methyl groups on the nanohoop.
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Affiliation(s)
- Xin Zhou
- Department of Chemistry, Louisiana State University, Baton Rouge, Louisiana 70810, USA.
| | - Hyejin Kwon
- College of Engineering and Applied Science, University of Colorado Boulder, Boulder, Colorado 80309, USA.
| | - Richard R Thompson
- Department of Chemistry, Louisiana State University, Baton Rouge, Louisiana 70810, USA.
| | - Robert J Herman
- Department of Chemistry, Louisiana State University, Baton Rouge, Louisiana 70810, USA.
| | - Frank R Fronczek
- Department of Chemistry, Louisiana State University, Baton Rouge, Louisiana 70810, USA.
| | - Carson J Bruns
- College of Engineering and Applied Science, University of Colorado Boulder, Boulder, Colorado 80309, USA. .,ATLAS Institute, University of Colorado, Boulder, Colorado 80309, USA
| | - Semin Lee
- Department of Chemistry, Louisiana State University, Baton Rouge, Louisiana 70810, USA.
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27
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Schröder W, Bruns CJ. [Long-term results of neoadjuvant chemoradiotherapy of esophageal cancer (CROSS trial)]. Chirurg 2021; 92:849. [PMID: 34191048 DOI: 10.1007/s00104-021-01444-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/28/2021] [Indexed: 11/28/2022]
Affiliation(s)
- W Schröder
- Klinik für Allgemein‑, Viszeral-, Tumor- und Transplantationschirurgie, Universitätsklinik Köln, Kerpener Str. 62, 50937, Köln, Deutschland.
| | - C J Bruns
- Klinik für Allgemein‑, Viszeral-, Tumor- und Transplantationschirurgie, Universitätsklinik Köln, Kerpener Str. 62, 50937, Köln, Deutschland
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28
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Abstract
Ring-sliding behavior in polyrotaxanes imbues gels, elastomers, and glasses with remarkable stress-dissipation and actuation properties. Since these properties can be modulated and tuned by structural parameters, many efforts have been devoted to developing synthetic protocols that define the structures and properties of slide-ring materials. We introduce post-synthetic modifications of slide-ring gels derived from unmodified α-cyclodextrin and poly(ethylene glycol) polyrotaxanes that enable (i) actuation and control of the thermo-responsive lower critical solution temperature (LCST) behavior of ring-modified slide-ring hydrogels, and (ii) chemically bonding separate gels into hybrid or shape-reconfigured macro-structures with a slide-ring adhesive solution. The mechanical properties of the post-modified gels have been characterized by shear rheology and uniaxial tensile tests, while the corresponding xerogels were characterized by wide-angle X-ray scattering. These demonstrations show that post-synthetic modification offers a practical solution for re-configuring the properties and shapes of slide-ring gels.
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Affiliation(s)
- Karan Dikshit
- Materials Science and Engineering Program, University of Colorado Boulder, Boulder, Colorado 80309, USA
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Schröder W, Bruns CJ. [Long-term results after hybrid Ivor Lewis esophagectomy (MIRO trial)]. Chirurg 2021; 92:667-668. [PMID: 33825931 DOI: 10.1007/s00104-021-01397-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/15/2021] [Indexed: 11/29/2022]
Affiliation(s)
- W Schröder
- Klinik für Allgemein‑, Viszeral- und Tumorchirurgie, Universitätsklinik Köln, Kerpener Str. 62, 50937, Köln, Deutschland.
| | - C J Bruns
- Klinik für Allgemein‑, Viszeral- und Tumorchirurgie, Universitätsklinik Köln, Kerpener Str. 62, 50937, Köln, Deutschland
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Brunner S, Bruns CJ, Schröder W. [Esophagotracheal and esophagobronchial fistulas]. Chirurg 2021; 92:577-588. [PMID: 33630123 DOI: 10.1007/s00104-021-01370-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/26/2021] [Indexed: 11/25/2022]
Abstract
Esophagobronchial and esophagotracheal fistulas are rare but complex diseases with a heterogeneous spectrum of underlying etiologies. Common causes are locally advanced tumors of the esophagus and larynx, traumatic perforation from the esophageal or tracheal side as well as postoperative fistulas. The management of esophagotracheal and esophagobronchial fistulas always involves different health care providers and in most cases patients require a multidisciplinary treatment on the intensive care unit. The therapeutic concept primarily depends on the underlying cause, localization and size of the fistula but decision making is also influenced by the severity of the course of sepsis and the extent of the respiratory dysfunction. Endoscopic management with esophageal and/or tracheobronchial stenting is the most common treatment. Surgical reconstructive procedures are predominantly reserved for patients with a treatment refractory fistula or a septic multiple organ failure. The prognosis is particularly influenced by the underlying disease.
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Affiliation(s)
- S Brunner
- Klinik für Allgemein‑, Viszeral‑, Tumor- und Transplantationschirurgie, Universitätsklinik Köln, Köln, Deutschland
| | - C J Bruns
- Klinik für Allgemein‑, Viszeral‑, Tumor- und Transplantationschirurgie, Universitätsklinik Köln, Köln, Deutschland
| | - W Schröder
- Klinik für Allgemein‑, Viszeral‑, Tumor- und Transplantationschirurgie, Universitätsklinik Köln, Köln, Deutschland.
- Chirurgische Leitung "Oberer Gastrointestinaltrakt", Klinik für Allgemein‑, Viszeral‑, Tumor- und Transplantationschirurgie, Universitätsklinik Köln, Kerpener Str. 62, 50937, Köln, Deutschland.
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Mallmann C, Drinhaus H, Fuchs H, Schiffmann LM, Cleff C, Schönau E, Bruns CJ, Annecke T, Schröder W. [Perioperative enhanced recovery after surgery program for Ivor Lewis esophagectomy : First experiences of a high-volume center]. Chirurg 2021; 92:158-167. [PMID: 32548695 DOI: 10.1007/s00104-020-01216-5] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
BACKGROUND AND OBJECTIVE Transthoracic esophagectomy is generally accepted as the standard of surgical care for patients with esophageal cancer. Despite improvements in the perioperative management this surgical procedure is associated with a clinically relevant morbidity. Fast-track protocols (synonym: enhanced recovery after surgery, ERAS) are conceived to perioperatively maintain the physiological homoeostasis and thereby to accelerate postoperative rehabilitation and reduce morbidity. In this prospective observational study the initial experiences of a high-volume center with the implementation of an ERAS protocol after transthoracic esophagectomy were analyzed. MATERIAL AND METHODS A total of 26 patients with esophageal cancer and a low index of comorbidities prior to hybrid Ivor Lewis esophagectomy were included in this study. According to an ERAS protocol all patients underwent a standardized perioperative treatment pathway aiming to discharge the patients from the inpatient treatment on postoperative day 10. The primary outcome parameter was the rate of major complications (Clavien-Dindo IIIb/IV), which was compared to a cohort of 52 non-ERAS patients. RESULTS AND CONCLUSION The ERAS programs with the various core elements can be implemented in patients scheduled for transthoracic esophagectomy, although the organizational and personnel expenditure of this fast-track protocol is high. The length of hospital stay appears to be reduced without compromising patient safety. The limiting variable of the ERAS protocol remains the early and adequate enteral feeding load of the gastric conduit before discharge on postoperative day 10.
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Affiliation(s)
- C Mallmann
- Medizinische Fakultät und Uniklinik, Klinik für Allgemein‑, Viszeral‑, Tumor- und Transplantationschirurgie, Universität zu Köln, Kerpener Str. 62, 50937, Köln, Deutschland
| | - H Drinhaus
- Medizinische Fakultät und Uniklinik, Klinik für Anästhesiologie und Operative Intensivmedizin, Universität zu Köln, Köln, Deutschland
| | - H Fuchs
- Medizinische Fakultät und Uniklinik, Klinik für Allgemein‑, Viszeral‑, Tumor- und Transplantationschirurgie, Universität zu Köln, Kerpener Str. 62, 50937, Köln, Deutschland
| | - L M Schiffmann
- Medizinische Fakultät und Uniklinik, Klinik für Allgemein‑, Viszeral‑, Tumor- und Transplantationschirurgie, Universität zu Köln, Kerpener Str. 62, 50937, Köln, Deutschland
| | - C Cleff
- Medizinische Fakultät und Uniklinik, Klinik für Anästhesiologie und Operative Intensivmedizin, Universität zu Köln, Köln, Deutschland
| | - E Schönau
- UniReha, Zentrum für Prävention und Rehabilitation der Uniklinik Köln, Köln, Deutschland
| | - C J Bruns
- Medizinische Fakultät und Uniklinik, Klinik für Allgemein‑, Viszeral‑, Tumor- und Transplantationschirurgie, Universität zu Köln, Kerpener Str. 62, 50937, Köln, Deutschland
| | - T Annecke
- Medizinische Fakultät und Uniklinik, Klinik für Anästhesiologie und Operative Intensivmedizin, Universität zu Köln, Köln, Deutschland
| | - W Schröder
- Medizinische Fakultät und Uniklinik, Klinik für Allgemein‑, Viszeral‑, Tumor- und Transplantationschirurgie, Universität zu Köln, Kerpener Str. 62, 50937, Köln, Deutschland.
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Schröder W, Bruns CJ. [Long-term results of definitive chemoradiotherapy of esophageal cancer]. Chirurg 2021; 92:73. [PMID: 33030556 DOI: 10.1007/s00104-020-01297-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Affiliation(s)
- W Schröder
- Klinik für Allgemein‑, Viszeral- und Tumorchirurgie, Universitätsklinik Köln, Kerpener Str. 62, 50937, Köln, Deutschland.
| | - C J Bruns
- Klinik für Allgemein‑, Viszeral- und Tumorchirurgie, Universitätsklinik Köln, Kerpener Str. 62, 50937, Köln, Deutschland
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Parameswar AV, Dikshit KV, Movafaghi S, Bruns CJ, Goodwin AP. Mechanochemistry Activated Covalent Conjugation Reactions in Soft Hydrogels Induced by Interfacial Failure. ACS Appl Mater Interfaces 2021; 13:1486-1492. [PMID: 33370089 PMCID: PMC7984414 DOI: 10.1021/acsami.0c18432] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
This work reports the development of a mechanochemistry activated covalent conjugation (MACC) reaction that shows areas of interfacial failure in soft hydrogels. Hydrogels are prone to delamination from rigid substrates due to the competition between swelling and adhesion, which can lead to bonding failure in a mechanism similar to crack propagation in harder materials. In this work, reductive amination was shown to occur when a ketone-bearing fluorescein derivative was bonded to an amine-functionalized hydrogel, as both of these moieties were found to be necessary for covalent conjugation into the gel network. For thin, circular polyacrylamide hydrogels, wrinkle patterns and regions of subsequent delamination at the edge of the gel were found to be selectively tagged by the dye. This reaction was then used to explore the effect of gel properties on patterns of interfacial failure. As cross-linker loading increased, the propagation of the delamination front and the area fraction of delamination were both found to increase, as shown by fluorescence images of gels. Increasing the thickness of the gel increased the fraction of delaminated area but did not change its propagation toward the center of the gel. This MACC reaction shows how mechanochemical reactions can be used for fluorescence tagging without incorporating mechanophores into the polymer gel matrix.
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Affiliation(s)
- Ashray V. Parameswar
- Materials Science and Engineering Program, University of Colorado, 596 UCB Boulder, Colorado 80303, United States
| | - Karan V. Dikshit
- Materials Science and Engineering Program, University of Colorado, 596 UCB Boulder, Colorado 80303, United States
| | - Sanli Movafaghi
- Department of Chemical and Biological Engineering, University of Colorado, 596 UCB Boulder, Colorado 80303, United States
| | - Carson J. Bruns
- Materials Science and Engineering Program, University of Colorado, 596 UCB Boulder, Colorado 80303, United States
- Department of Mechanical Engineering, University of Colorado, 596 UCB Boulder, Colorado 80303, United States
| | - Andrew P. Goodwin
- Materials Science and Engineering Program, University of Colorado, 596 UCB Boulder, Colorado 80303, United States
- Department of Chemical and Biological Engineering, University of Colorado, 596 UCB Boulder, Colorado 80303, United States
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Babic B, Schiffmann LM, Schröder W, Bruns CJ, Fuchs HF. [Evidence in minimally invasive oncological surgery of the esophagus]. Chirurg 2021; 92:299-303. [PMID: 33432385 DOI: 10.1007/s00104-020-01337-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/14/2020] [Indexed: 10/22/2022]
Abstract
BACKGROUND Thoracoabdominal esophagectomy still plays a major role in the oncological treatment for esophageal cancer. Minimally invasive procedures were developed to reduce the high rate of postoperative morbidity and mortality without negatively affecting the oncological outcome. OBJECTIVE What evidence supports minimally invasive oncological surgery of the esophagus? Do patients benefit from minimally invasive esophagectomy compared to an open approach? Is the reduction of surgical access trauma specifically advantageous? MATERIAL AND METHODS Review, evaluation and critical analysis of the international literature. RESULTS A reduction in postoperative morbidity by decreasing surgical trauma was confirmed by three prospective randomized clinical trials, while showing at least similar oncological outcomes. Diverse retrospective analyses and meta-analyses also came to the same result. CONCLUSION A minimization of surgical access trauma during thoracoabdominal esophagectomy reduces postoperative morbidity compared to conventional open surgery. Recent evidence suggests that oncological outcomes are not altered depending on the surgical approach.
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Affiliation(s)
- B Babic
- Klinik und Poliklinik für Allgemein‑, Viszeral‑, Tumor- und Transplantationschirurgie, Uniklinik Köln, Kerpener Straße 62, 50937, Köln, Deutschland
| | - L M Schiffmann
- Klinik und Poliklinik für Allgemein‑, Viszeral‑, Tumor- und Transplantationschirurgie, Uniklinik Köln, Kerpener Straße 62, 50937, Köln, Deutschland
| | - W Schröder
- Klinik und Poliklinik für Allgemein‑, Viszeral‑, Tumor- und Transplantationschirurgie, Uniklinik Köln, Kerpener Straße 62, 50937, Köln, Deutschland
| | - C J Bruns
- Klinik und Poliklinik für Allgemein‑, Viszeral‑, Tumor- und Transplantationschirurgie, Uniklinik Köln, Kerpener Straße 62, 50937, Köln, Deutschland
| | - H F Fuchs
- Klinik und Poliklinik für Allgemein‑, Viszeral‑, Tumor- und Transplantationschirurgie, Uniklinik Köln, Kerpener Straße 62, 50937, Köln, Deutschland.
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Butterfield JL, Keyser SP, Dikshit KV, Kwon H, Koster MI, Bruns CJ. Solar Freckles: Long-Term Photochromic Tattoos for Intradermal Ultraviolet Radiometry. ACS Nano 2020; 14:13619-13628. [PMID: 32961057 DOI: 10.1021/acsnano.0c05723] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
While tattooable nanotechnology for in-skin sensing and communication has been a popular concept in science fiction since the 1990s, the first tattooable intradermal nanosensors have only emerged in the past few years, and none have been demonstrated in human skin. We developed a photochromic tattoo that serves as an intradermal ultraviolet (UV) radiometer that provides naked-eye feedback about UV exposure in real time. These small tattoos, or "solar freckles", comprise dermally implanted colorimetric UV sensors in the form of nanoencapsulated leuco dyes that become more blue in color with increasing UV irradiance. We demonstrate the tattoos' functionality for both quantitative and naked-eye UV sensing in porcine skin ex vivo, as well as in human skin in vivo. Solar freckles offer an alternative and complementary approach to self-monitoring UV exposure for the sake of skin cancer prevention. Activated solar freckles provide a visual reminder to protect the skin, and their color disappears rapidly upon removal of UV exposure or application of topical sunscreen. The sensors are implanted in a minimally invasive procedure that lasts only a few seconds, yet remain functional for months to years. These semipermanent tattoos provide an early proof-of-concept for long-term intradermal sensing nanomaterials that provide users with biomedically relevant information in the form of an observable color change.
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Affiliation(s)
- Jesse L Butterfield
- Paul M. Rady Department of Mechanical Engineering, University of Colorado-Boulder, Boulder, Colorado 80309, United States
| | - Sean P Keyser
- Paul M. Rady Department of Mechanical Engineering, University of Colorado-Boulder, Boulder, Colorado 80309, United States
| | - Karan V Dikshit
- Materials Science & Engineering Program, University of Colorado-Boulder, Boulder, Colorado 80309, United States
| | - Hyejin Kwon
- Paul M. Rady Department of Mechanical Engineering, University of Colorado-Boulder, Boulder, Colorado 80309, United States
| | - Maranke I Koster
- Department of Dermatology, University of Colorado-Denver, Anschutz Medical Campus, Denver, Colorado 80217, United States
| | - Carson J Bruns
- Paul M. Rady Department of Mechanical Engineering, University of Colorado-Boulder, Boulder, Colorado 80309, United States
- ATLAS Institute, University of Colorado-Boulder, Boulder, Colorado 80309, United States
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Abstract
BACKGROUND According to international guidelines neoadjuvant chemoradiotherapy and chemotherapy are recommended for the treatment of locally advanced esophageal cancer. The treatment approach depends on the tumor entity (adenocarcinoma vs. squamous cell carcinoma). OBJECTIVE What benefits do patients with locally advanced esophageal cancer have from neoadjuvant treatment? Is there information in the international literature on whether a particular neoadjuvant treatment is preferred? Does the type of neoadjuvant treatment depend on factors other than the tumor entity? Is there a standard in the drug composition of chemotherapy or a clearly defined chemoradiotherapy regimen? MATERIAL AND METHODS A review, evaluation and critical analysis of the international literature were carried out. RESULTS Patients with locally advanced esophageal cancer benefit from a neoadjuvant treatment. The current data situation for squamous cell carcinoma of the esophagus demonstrates a better response to neoadjuvant chemoradiotherapy compared to chemotherapy alone. Locally advanced adenocarcinoma of the esophagus can be treated with combined neoadjuvant chemoradiotherapy as well as by chemotherapy alone. Both lead to an improvement in the prognosis. There are often differences particularly among radiation treatment regimens in the different centers. Furthermore, the localization of the tumor can also be important for treatment decisions. CONCLUSION A neoadjuvant treatment is clearly recommended for locally advanced esophageal cancer. Currently, chemoradiotherapy according to the CROSS protocol is preferred for squamous cell carcinoma. For adenocarcinoma both chemotherapy according to the FLOT protocol as well as chemoradiotherapy in a neoadjuvant treatment concept lead to an improvement in the prognosis.
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Affiliation(s)
- B Babic
- Klinik und Poliklinik für Allgemein‑, Viszeral‑, Tumor- und Transplantationschirurgie, Universitätsklinikum Köln (AöR), Kerpener Str. 62, 50937, Köln, Deutschland
| | - H F Fuchs
- Klinik und Poliklinik für Allgemein‑, Viszeral‑, Tumor- und Transplantationschirurgie, Universitätsklinikum Köln (AöR), Kerpener Str. 62, 50937, Köln, Deutschland
| | - C J Bruns
- Klinik und Poliklinik für Allgemein‑, Viszeral‑, Tumor- und Transplantationschirurgie, Universitätsklinikum Köln (AöR), Kerpener Str. 62, 50937, Köln, Deutschland.
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Schröder W, Fuchs H, Bruns CJ. [Indocyanine green-guided lymphadenectomy during laparoscopic gastrectomy]. Chirurg 2020; 91:977. [PMID: 32577769 DOI: 10.1007/s00104-020-01226-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Affiliation(s)
- W Schröder
- Klinik für Allgemein‑, Viszeral- und Tumorchirurgie, Universitätsklinik Köln, Kerpener Str. 62, 50937, Köln, Deutschland.
| | - H Fuchs
- Klinik für Allgemein‑, Viszeral- und Tumorchirurgie, Universitätsklinik Köln, Kerpener Str. 62, 50937, Köln, Deutschland
| | - C J Bruns
- Klinik für Allgemein‑, Viszeral- und Tumorchirurgie, Universitätsklinik Köln, Kerpener Str. 62, 50937, Köln, Deutschland
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38
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Damanakis AI, Gebauer F, Bruns CJ. [Molecular predictors for the course of disease and individualized therapy in pancreatic cancer]. Chirurg 2020; 91:642-649. [PMID: 32405728 DOI: 10.1007/s00104-020-01172-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
The understanding of the development of pancreatic cancer has undergone considerable development over the last two decades. This is mainly due to the progress and use of methods for molecular biological analysis of pancreatic carcinomas. There is now a fundamental understanding with respect to the genetic drivers for the development of pancreatic cancer and the correlation with clinical data as well as the classification of different genetic characteristics of individual tumors even enables an estimation of the prognosis in some cases. The most common mutation in ductal adenocarcinoma, which if found in >90% of tumors, is the mutation of the KRAS oncogene. The other three, CDKN2A, p53 and SMAD4, are all tumor suppressor genes and are mutated in approximately 90%, 70% and 50% of carcinomas, respectively. In addition, genetic mutations predisposing to pancreatic cancer have been identified. Among the most important are BRCA2, p16/CDKN2A, STK11, PRSS1, PALP2, FANCC, FANCG and ATM. The classification of different subtypes and the knowledge of individual mutations (especially BRCA) can also be used to assess the response to treatment in individual cases. This applies to "conventional" combination chemotherapies (especially FOLFIRINOX) and also to targeted treatment approaches with tyrosine kinase inhibitors, PARP inhibitors and PD‑1 inhibitors. If knowledge about the course of the disease and decisions on individual therapies become established in everyday clinical practice in the future, this may also have a decisive impact on surgery as the most important pillar of curative treatment. This ranges from the increased achievement of secondary operability to the expansion of indications with respect to resection even in patients with metastases.
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Affiliation(s)
| | | | - C J Bruns
- Klinik für Allgemein‑, Viszeral‑, Tumor- und Transplantationschirurgie, Universitätsklinikum Köln (AöR), Kerpener Str. 62, 50937, Köln, Deutschland.
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Schröder W, Bruns CJ. [Thromboembolic complications in multimodal treatment of esophageal cancer]. Chirurg 2020; 91:680. [PMID: 32382806 DOI: 10.1007/s00104-020-01193-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Affiliation(s)
- W Schröder
- Klinik für Allgemein‑, Viszeral‑, Tumor- und Transplantationschirurgie, Universitätsklinik Köln, Kerpener Str. 62, 50937, Köln, Deutschland.
| | - C J Bruns
- Klinik für Allgemein‑, Viszeral‑, Tumor- und Transplantationschirurgie, Universitätsklinik Köln, Kerpener Str. 62, 50937, Köln, Deutschland
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Schröder W, Bruns CJ. [Squamous cell carcinoma of the esophagus-two-field or three-field lymphadenectomy?]. Chirurg 2020; 91:598. [PMID: 32291470 DOI: 10.1007/s00104-020-01175-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- W Schröder
- Klinik für Allgemein‑, Viszeral- und Tumorchirurgie, Universitätsklinik Köln, Kerpener Str. 62, 50937, Köln, Deutschland.
| | - C J Bruns
- Klinik für Allgemein‑, Viszeral- und Tumorchirurgie, Universitätsklinik Köln, Kerpener Str. 62, 50937, Köln, Deutschland
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Bartella I, Brinkmann S, Fuchs H, Leers J, Schlößer HA, Bruns CJ, Schröder W. Two-stage hybrid Ivor-Lewis esophagectomy as surgical strategy to reduce postoperative morbidity for high-risk patients. Surg Endosc 2020; 35:1182-1189. [PMID: 32166547 PMCID: PMC7886840 DOI: 10.1007/s00464-020-07485-9] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2019] [Accepted: 03/02/2020] [Indexed: 01/26/2023]
Abstract
BACKGROUND Ivor-Lewis esophagectomy (ILE) is the standard surgical care for esophageal cancer patients but postoperative morbidity impairs quality of life and reduces long-term oncological outcome. Two-stage ILE separating the abdominal and thoracic phase into two distinct surgical procedures has proven to enhance microcirculation of the gastric conduit and therefore most likely reduces complications. However, two-stage ILE has not been evaluated systematically in selected groups of patients scheduled for this procedure. This investigation aims to demonstrate the feasibility of two-stage ILE in high-risk patients. PATIENTS AND METHODS In this retrospective analysis of data obtained from a prospective database, a consecutive series of 275 hybrid ILE (hILE) were included. Patients were divided into two groups based on one- or two-stage hILE. Postoperative complications were assessed according to ECCG (Esophageal Complication Consensus Group) criteria and compared using the Clavien-Dindo score. Indication for two-stage esophagectomy was classified as pre- or intraoperative decision. RESULTS 34 out of 275 patients (12.7%) underwent two-stage hILE. Patients of the two-stage group were significantly older. In 21 of 34 patients (61.8%) the decision for a two-stage procedure was made prior to esophagectomy, in 13 (38.2%) patients intraoperatively after completion of the laparoscopic gastric mobilization. The most frequent preoperative reason to select the two-stage procedure was a stenosis of the coeliac trunc and superior mesenteric artery (n = 10). The predominant cause for an intraoperative change of strategy was a laparoscopically diagnosed hepatic fibrosis/cirrhosis (n = 5).Overall morbidity and major' complications (CD > IIIa) were comparable for both groups (11.7% in both groups). The overall anastomotic leak rate was 12.4% and was non-significant lower for the two-stage procedure. CONCLUSION Two-stage hILE is a feasible concept to individualize the surgical treatment of patients with well-defined clinical risk factors for postoperative morbidity. It can also be applied after completion of the abdominal phase of IL esophagectomy without compromising the patient safety.
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Affiliation(s)
- I Bartella
- Department of General, Visceral and Cancer Surgery, University of Cologne, Kerpener Str. 32, 50937, Cologne, Germany
| | - S Brinkmann
- Department of General, Visceral and Cancer Surgery, University of Cologne, Kerpener Str. 32, 50937, Cologne, Germany
| | - H Fuchs
- Department of General, Visceral and Cancer Surgery, University of Cologne, Kerpener Str. 32, 50937, Cologne, Germany
| | - J Leers
- Department of General, Visceral and Cancer Surgery, University of Cologne, Kerpener Str. 32, 50937, Cologne, Germany
| | - H A Schlößer
- Department of General, Visceral and Cancer Surgery, University of Cologne, Kerpener Str. 32, 50937, Cologne, Germany
| | - C J Bruns
- Department of General, Visceral and Cancer Surgery, University of Cologne, Kerpener Str. 32, 50937, Cologne, Germany
| | - W Schröder
- Department of General, Visceral and Cancer Surgery, University of Cologne, Kerpener Str. 32, 50937, Cologne, Germany.
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42
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Schröder W, Bruns CJ. [Reconstruction after gastrectomy-pouch or no pouch?]. Chirurg 2020; 91:431. [PMID: 32086530 DOI: 10.1007/s00104-020-01149-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Affiliation(s)
- W Schröder
- Klinik für Allgemein‑, Viszeral- und Tumorchirurgie, Universitätsklinik Köln, Kerpener Str. 62, 50937, Köln, Deutschland.
| | - C J Bruns
- Klinik für Allgemein‑, Viszeral- und Tumorchirurgie, Universitätsklinik Köln, Kerpener Str. 62, 50937, Köln, Deutschland
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43
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Schröder W, Bruns CJ. [Long-term survival after perioperative chemotherapy of cancer of the gastroesophageal junction and the stomach-ECF vs. FLOT]. Chirurg 2020; 91:166. [PMID: 31993693 DOI: 10.1007/s00104-020-01127-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- W Schröder
- Klinik für Allgemein‑, Viszeral- und Tumorchirurgie, Universitätsklinik Köln, Kerpener Str. 62, 50937, Köln, Deutschland.
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Affiliation(s)
- W Schröder
- Klinik für Allgemein‑, Viszeral- und Tumorchirurgie, Universitätsklinik Köln, Kerpener Str. 62, 50937, Köln, Deutschland.
| | - C J Bruns
- Klinik für Allgemein‑, Viszeral- und Tumorchirurgie, Universitätsklinik Köln, Kerpener Str. 62, 50937, Köln, Deutschland
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Schröder W, Bruns CJ. [Lymph node metastasis in cardiac cancer]. Chirurg 2019; 90:1026. [PMID: 31659407 DOI: 10.1007/s00104-019-01064-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Affiliation(s)
- W Schröder
- Klinik für Allgemein‑, Viszeral- und Tumorchirurgie, Universitätsklinik Köln, Kerpener Str. 62, 50937, Köln, Deutschland.
| | - C J Bruns
- Klinik für Allgemein‑, Viszeral- und Tumorchirurgie, Universitätsklinik Köln, Kerpener Str. 62, 50937, Köln, Deutschland
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Garlipp B, Gibbs P, Van Hazel GA, Jeyarajah R, Martin RCG, Bruns CJ, Lang H, Manas DM, Ettorre GM, Pardo F, Donckier V, Benckert C, van Gulik TM, Goéré D, Schoen M, Pratschke J, Bechstein WO, de la Cuesta AM, Adeyemi S, Ricke J, Seidensticker M. Secondary technical resectability of colorectal cancer liver metastases after chemotherapy with or without selective internal radiotherapy in the randomized SIRFLOX trial. Br J Surg 2019; 106:1837-1846. [PMID: 31424576 PMCID: PMC6899564 DOI: 10.1002/bjs.11283] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2019] [Revised: 05/22/2019] [Accepted: 05/23/2019] [Indexed: 12/12/2022]
Abstract
Background Secondary resection of initially unresectable colorectal cancer liver metastases (CRLM) can prolong survival. The added value of selective internal radiotherapy (SIRT) to downsize lesions for resection is not known. This study evaluated the change in technical resectability of CRLM with the addition of SIRT to FOLFOX‐based chemotherapy. Methods Baseline and follow‐up hepatic imaging of patients who received modified FOLFOX (mFOLFOX6: fluorouracil, leucovorin, oxaliplatin) chemotherapy with or without bevacizumab (control arm) versus mFOLFOX6 (with or without bevacizumab) plus SIRT using yttrium‐90 resin microspheres (SIRT arm) in the phase III SIRFLOX trial were reviewed by three or five (of 14) expert hepatopancreatobiliary surgeons for resectability. Reviewers were blinded to one another, treatment assignment, extrahepatic disease status, and information on clinical and scanning time points. Technical resectability was defined as at least 60 per cent of reviewers (3 of 5, or 2 of 3) assessing a patient's liver metastases as surgically removable. Results Some 472 patients were evaluable (SIRT, 244; control, 228). There was no significant baseline difference in the proportion of technically resectable liver metastases between SIRT (29, 11·9 per cent) and control (25, 11·0 per cent) arms (P = 0·775). At follow‐up, significantly more patients in both arms were deemed technically resectable compared with baseline: 159 of 472 (33·7 per cent) versus 54 of 472 (11·4 per cent) respectively (P = 0·001). More patients were resectable in the SIRT than in the control arm: 93 of 244 (38·1 per cent) versus 66 of 228 (28·9 per cent) respectively (P < 0·001). Conclusion Adding SIRT to chemotherapy may improve the resectability of unresectable CRLM.
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Affiliation(s)
- B Garlipp
- Otto-von-Guericke-University Hospital, Magdeburg, Germany
| | - P Gibbs
- Department of Medical Oncology, Western Health, Melbourne, Victoria, Australia
| | - G A Van Hazel
- Sir Charles Gairdner Hospital, Perth, Western Australia, Australia
| | - R Jeyarajah
- Methodist Richardson Medical Center, Dallas, Texas, USA
| | - R C G Martin
- Division of Surgical Oncology, University of Louisville, Louisville, Kentucky, USA
| | - C J Bruns
- University Hospital Cologne, Cologne, Germany
| | - H Lang
- General, Visceral and Transplant Surgery, University Medical Centre of Johannes Gutenberg University, Mainz, Germany
| | - D M Manas
- Department of Hepato-Pancreato-Biliary Surgery, Freeman Hospital, Newcastle-upon-Tyne, UK
| | | | - F Pardo
- Hepato-Pancreatico-Biliary Surgery and Oncology, Clinica Universidad de Navarra, Pamplona, Spain.,Instituto de Investigación Sanitaria de Navarra, Pamplona, Spain
| | - V Donckier
- Jules Bordet Institute, Brussels, Belgium
| | - C Benckert
- Vivantes Klinikum Am Friedrichshain, Berlin, Germany
| | | | - D Goéré
- Institut Gustave Roussy, Villejuif, France
| | - M Schoen
- Städtisches Klinikum Karlsruhe, Karlsruhe, Germany
| | - J Pratschke
- Charité Universitätsmedizin Berlin, Berlin, Germany
| | - W O Bechstein
- Department of General and Visceral Surgery, University Hospital Frankfurt, Frankfurt, Germany
| | | | - S Adeyemi
- Statsxperts Consulting Limited, Hemel Hempstead, UK
| | - J Ricke
- Deutsche Akademie für Mikrotherapie, Magdeburg, Germany.,Klinik und Poliklinik für Radiologie, Klinikum der Universität München, Munich, Germany
| | - M Seidensticker
- Otto-von-Guericke-University Hospital, Magdeburg, Germany.,Deutsche Akademie für Mikrotherapie, Magdeburg, Germany.,Klinik und Poliklinik für Radiologie, Klinikum der Universität München, Munich, Germany
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Brinkmann S, Chang DH, Kuhr K, Hoelscher AH, Spiro J, Bruns CJ, Schroeder W. Stenosis of the celiac trunk is associated with anastomotic leak after Ivor-Lewis esophagectomy. Dis Esophagus 2019; 32:5367736. [PMID: 30820543 DOI: 10.1093/dote/doy107] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Transthoracic esophagectomy with gastric tube formation is the surgical treatment of choice for esophageal cancer. The surgical reconstruction induces changes of gastric microcirculation, which are recognized as potential risk factors of anastomotic leak. This prospective observational study investigates the association of celiac trunk (TC) stenosis with postoperative anastomotic leak. One hundred fifty-four consecutive patients with esophageal cancer scheduled for Ivor-Lewis esophagectomy were included. Preoperative staging computed tomography (CT) was used to identify TC stenosis. Any narrowing of the lumen due to atherosclerotic changes was classified as stenosis. Percentage of stenotic changes was calculated using the North American Symptomatic Carotid Endarterectomy Trial formula. Multivariable analysis was used to identify possible risk factors for leak. The overall incidence of TC stenosis was 40.9%. Anastomotic leak was identified in 15 patients (9.7%). Incidence of anastomotic leak in patients with stenosis was 19.4% compared to 2.3% in patients without stenosis. Incidence of stenosis in patients with leak was 86.7% (13 of 15 patients) and significantly higher than 38.8% (54 of 139 patients) in patients without leak (P < 0.001). There was a significant difference in median degree of TC stenosis (50.0% vs 39.4%; P = 0.032) in patients with and without leak. In the multivariable model, TC stenosis was an independent risk factor for anastomotic leak (odds ratio: 5.98, 95% CI: 1.58-22.61). TC stenosis is associated with postoperative anastomotic leak after Ivor-Lewis esophagectomy. Routine assessment of TC for possible stenosis is recommended to identify patients at risk.
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Affiliation(s)
- S Brinkmann
- Department of General, Visceral and Cancer Surgery, University of Cologne, Germany
| | - D H Chang
- Department of Radiology, University of Cologne, Germany
| | - K Kuhr
- Institute of Medical Statistics, Informatics and Epidemiology, University of Cologne, Germany
| | - A H Hoelscher
- Department of Surgery, AGAPLESION Markus Krankenhaus, Frankfurt, Germany
| | - J Spiro
- Department of Radiology, University of Cologne, Germany
| | - C J Bruns
- Department of General, Visceral and Cancer Surgery, University of Cologne, Germany
| | - W Schroeder
- Department of General, Visceral and Cancer Surgery, University of Cologne, Germany
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Stippel DL, Wahba R, Bruns CJ, Bunck A, Baues C, Persigehl T. [Image-guided, minimally invasive surgery and other local therapeutic procedures for primary liver tumors]. Chirurg 2019; 89:872-879. [PMID: 30030546 DOI: 10.1007/s00104-018-0688-0] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
BACKGROUND The incidence of primary liver tumors is rising. Modern minimally invasive, image-guided procedures offer a potentially curative therapy option. OBJECTIVE The aim of this study was to evaluate the multitude of image-guided minimally invasive procedures concerning their evidence-based effect on local tumor control and overall survival. MATERIAL AND METHODS A systematic search of MEDLINE focused on hepatocellular cancer, minimally invasive treatment, local ablative therapy, therapeutic stratification and comparative studies was performed. RESULTS The level of evidence varied greatly depending on the procedure used. The highest quality evidence including prospective randomized studies was found for radiofrequency ablation (RFA) of hepatocellular cancer. The RFA is superior with respect to local tumor control and overall survival in comparison to other ablative procedures. Prospective randomized studies comparing surgery and RFA showed diverging and contradictory results. Microwave ablation and robotic stereotactic irradiation showed sufficient potential in retrospective studies in comparison to RFA and surgery in order to confirm the techniques in randomized studies. There is only anecdotal evidence concerning high intensity focused ultrasound (HIFU) and irreversible electroporation. Percutaneous ethanol injection (PEI), cryoablation and laser-induced thermal therapy (LITT) were inferior techniques to RFA in most studies. CONCLUSION Minimally invasive resection and local ablative therapies based on structured imaging and image reporting can improve the prognosis of patients with hepatocellular cancer even in patients that exceed the BCLC 0/A stage.
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Affiliation(s)
- D L Stippel
- Klinik für Allgemein‑, Viszeral- und Tumorchirurgie, Uniklinik Köln (AöR), Kerpener Str. 62, 50937, Köln, Deutschland.
| | - R Wahba
- Klinik für Allgemein‑, Viszeral- und Tumorchirurgie, Uniklinik Köln (AöR), Kerpener Str. 62, 50937, Köln, Deutschland
| | - C J Bruns
- Klinik für Allgemein‑, Viszeral- und Tumorchirurgie, Uniklinik Köln (AöR), Kerpener Str. 62, 50937, Köln, Deutschland
| | - A Bunck
- Institut für Diagnostische und Interventionelle Radiologie, Uniklinik Köln, Köln, Deutschland
| | - C Baues
- Klinik und Poliklinik für Radioonkologie, Cyberknife- und Strahlentherapie, Uniklinik Köln, Köln, Deutschland
| | - T Persigehl
- Institut für Diagnostische und Interventionelle Radiologie, Uniklinik Köln, Köln, Deutschland
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Hekmat K, Bruns CJ. [Guideline-conform treatment of non-small cell lung cancer]. Chirurg 2019; 90:676. [PMID: 31175369 DOI: 10.1007/s00104-019-0991-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Affiliation(s)
- K Hekmat
- Klinik und Poliklinik für Herz- und Thoraxchirurgie, Universität zu Köln, Kerpener Straße 62, 50931, Köln, Deutschland.
| | - C J Bruns
- Klinik und Poliklinik Allgemein‑, Viszeral- und Tumorchirurgie, Universität zu Köln, Kerpener Straße 62, 50931, Köln, Deutschland
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Schröder W, Bruns CJ. [Risk factor and associated complications of atrial fibrillation after esophagectomy]. Chirurg 2019; 90:591-592. [PMID: 31139856 DOI: 10.1007/s00104-019-0984-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- W Schröder
- Klinik für Allgemein‑, Viszeral- und Tumorchirurgie, Universitätsklinik Köln, Kerpener Str. 62, 50937, Köln, Deutschland.
| | - C J Bruns
- Klinik für Allgemein‑, Viszeral- und Tumorchirurgie, Universitätsklinik Köln, Kerpener Str. 62, 50937, Köln, Deutschland
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