1
|
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.
Collapse
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.
| |
Collapse
|
2
|
Seufferlein T, Uhl W, Kornmann M, Algül H, Friess H, König A, Ghadimi M, Gallmeier E, Bartsch DK, Lutz MP, Metzger R, Wille K, Gerdes B, Schimanski CC, Graupe F, Kunzmann V, Klein I, Geissler M, Staib L, Waldschmidt D, Bruns C, Wittel U, Fichtner-Feigl S, Daum S, Hinke A, Blome L, Tannapfel A, Kleger A, Berger AW, Kestler AMR, Schuhbaur JS, Perkhofer L, Tempero M, Reinacher-Schick AC, Ettrich TJ. Perioperative or only adjuvant gemcitabine plus nab-paclitaxel for resectable pancreatic cancer (NEONAX)-a randomized phase II trial of the AIO pancreatic cancer group. Ann Oncol 2023; 34:91-100. [PMID: 36209981 DOI: 10.1016/j.annonc.2022.09.161] [Citation(s) in RCA: 25] [Impact Index Per Article: 25.0] [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: 07/15/2022] [Revised: 09/26/2022] [Accepted: 09/27/2022] [Indexed: 02/03/2023] Open
Abstract
BACKGROUND Data on perioperative chemotherapy in resectable pancreatic ductal adenocarcinoma (rPDAC) are limited. NEONAX examined perioperative or adjuvant chemotherapy with gemcitabine plus nab-paclitaxel in rPDAC (National Comprehensive Cancer Network criteria). PATIENTS AND METHODS NEONAX is a prospective, randomized phase II trial with two independent experimental arms. One hundred twenty-seven rPDAC patients in 22 German centers were randomized 1 : 1 to perioperative (two pre-operative and four post-operative cycles, arm A) or adjuvant (six cycles, arm B) gemcitabine (1000 mg/m2) and nab-paclitaxel (125 mg/m2) on days 1, 8 and 15 of a 28-day cycle. RESULTS The primary endpoint was disease-free survival (DFS) at 18 months in the modified intention-to-treat (ITT) population [R0/R1-resected patients who started neoadjuvant chemotherapy (CTX) (A) or adjuvant CTX (B)]. The pre-defined DFS rate of 55% at 18 months was not reached in both arms [A: 33.3% (95% confidence interval [CI] 18.5% to 48.1%), B: 41.4% (95% CI 20.7% to 62.0%)]. Ninety percent of patients in arm A completed neoadjuvant treatment, and 42% of patients in arm B started adjuvant chemotherapy. R0 resection rate was 88% (arm A) and 67% (arm B), respectively. Median overall survival (mOS) (ITT population) as a secondary endpoint was 25.5 months (95% CI 19.7-29.7 months) in arm A and 16.7 months (95% CI 11.6-22.2 months) in the upfront surgery arm. This difference corresponds to a median DFS (mDFS) (ITT) of 11.5 months (95% CI 8.8-14.5 months) in arm A and 5.9 months (95% CI 3.6-11.5 months) in arm B. Treatment was safe and well tolerable in both arms. CONCLUSIONS The primary endpoint, DFS rate of 55% at 18 months (mITT population), was not reached in either arm of the trial and numerically favored the upfront surgery arm B. mOS (ITT population), a secondary endpoint, numerically favored the neoadjuvant arm A [25.5 months (95% CI 19.7-29.7months); arm B 16.7 months (95% CI 11.6-22.2 months)]. There was a difference in chemotherapy exposure with 90% of patients in arm A completing pre-operative chemotherapy and 58% of patients starting adjuvant chemotherapy in arm B. Neoadjuvant/perioperative treatment is a novel option for patients with resectable PDAC. However, the optimal treatment regimen has yet to be defined. The trial is registered with ClinicalTrials.gov (NCT02047513) and the European Clinical Trials Database (EudraCT 2013-005559-34).
Collapse
Affiliation(s)
- T Seufferlein
- Department of Internal Medicine I, Ulm University, Ulm, Germany.
| | - W Uhl
- Department of General and Visceral Surgery, St. Josef-Hospital Bochum, Ruhr-University Bochum, Bochum, Germany
| | - M Kornmann
- Department of General and Visceral Surgery, Ulm University, Ulm, Germany
| | - H Algül
- CCC Munich-TUM and Department of Internal Medicine II, TUM, Munich, Germany
| | - H Friess
- Department of General and Visceral Surgery, TUM, Munich, Germany
| | - A König
- Department of Gastroenterology, GI-Oncology and Endocrinology, University Medical Center, Göttingen, Germany
| | - M Ghadimi
- Department of General and Visceral Surgery, University Medical Center Göttingen, Göttingen, Germany
| | - E Gallmeier
- Department of Gastroenterology and Endocrinology, University of Marburg, Marburg, Germany
| | - D K Bartsch
- Department of General and Visceral Surgery, University of Marburg, Marburg, Germany
| | - M P Lutz
- Department of Gastroenterology, Caritasklinik St. Theresia, Saarbrücken, Germany
| | - R Metzger
- Department of General and Visceral Surgery, Caritasklinik St. Theresia, Saarbrücken, Germany
| | - K Wille
- Department of Hematology, Oncology, Hemostaseology and Palliative Care, Johannes Wesling Medical Center Minden, Ruhr-University Bochum, Bochum, Germany
| | - B Gerdes
- Department of General and Visceral Surgery Minden, Ruhr-University Bochum, Minden, Germany
| | - C C Schimanski
- Department of Internal Medicine and Gastroenterology, Darmstadt Hospital, Darmstadt, Germany
| | - F Graupe
- Department of General and Visceral Surgery, Darmstadt Hospital, Darmstadt, Germany
| | - V Kunzmann
- Department of Internal Medicine II, Julius Maximilians University, Würzburg, Germany
| | - I Klein
- Department of General, Visceral, Vascular and Pediatric Surgery, Julius Maximilians University, Würzburg, Germany
| | - M Geissler
- Department of Hematology and Oncology, Esslingen Hospital, Esslingen, Germany
| | - L Staib
- Department of Surgery, Esslingen Hospital, Esslingen, Germany
| | - D Waldschmidt
- Department of Gastroenterology and Hepatology, University of Cologne, Cologne, Germany
| | - C Bruns
- Department of Visceral Surgery, University of Cologne, Cologne, Germany
| | - U Wittel
- Department of General and Visceral Surgery, University of Freiburg, Freiburg, Germany
| | - S Fichtner-Feigl
- Department of General and Visceral Surgery, University of Freiburg, Freiburg, Germany
| | - S Daum
- Department for Gastroenterology, Rheumatology and Infectology, Charite University Hospital Berlin, Berlin, Germany
| | - A Hinke
- Biostatistics, CCRC Cancer Clinical Research Consulting, Düsseldorf, Germany
| | - L Blome
- Biometrics, ClinAssess Gesellschaft für klinische Forschung mbH, Leverkusen, Germany
| | - A Tannapfel
- Institute of Pathology, Ruhr-University Bochum, Bochum, Germany
| | - A Kleger
- Department of Internal Medicine I, Ulm University, Ulm, Germany
| | - A W Berger
- Department of Internal Medicine I, Ulm University, Ulm, Germany
| | - A M R Kestler
- Department of Internal Medicine I, Ulm University, Ulm, Germany
| | - J S Schuhbaur
- Department of Internal Medicine I, Ulm University, Ulm, Germany
| | - L Perkhofer
- Department of Internal Medicine I, Ulm University, Ulm, Germany
| | - M Tempero
- UCSF Department of Medicine, University of California San Francisco, San Francisco, USA
| | - A C Reinacher-Schick
- Department of Hematology, Oncology and Palliative Care, St. Josef-Hospital, Ruhr-University Bochum, Bochum, Germany
| | - T J Ettrich
- Department of Internal Medicine I, Ulm University, Ulm, Germany
| |
Collapse
|
3
|
Diefenhardt M, Ludmir E, Hofheinz R, Ghadimi M, Minsky B, Fleischmann M, Fokas E, Rödel C. PH-0111 Impact of body-mass index on multimodal treatment and outcome in locally advanced rectal cancer. Radiother Oncol 2021. [DOI: 10.1016/s0167-8140(21)07245-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
|
4
|
Fokas E, Schlenska-Lange A, Polat B, Klautke G, Fietkau R, Kuhnt T, Brunner T, Grosu A, Kirste S, Flentje M, Germer C, Bechstein W, Friede T, Hofheinz R, Ghadimi M, Rödel C. OC-0293 TNT in rectal cancer: Final results of the CAO/ARO/AIO-12 randomized phase 2 trial. Radiother Oncol 2021. [DOI: 10.1016/s0167-8140(21)06841-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
|
5
|
Fietkau R, Grützmann R, Wittel UA, Croner RS, Jacobasch L, Neumann UP, Reinacher-Schick A, Imhoff D, Boeck S, Keilholz L, Oettle H, Hohenberger WM, Golcher H, Bechstein WO, Uhl W, Pirkl A, Adler W, Semrau S, Rutzner S, Ghadimi M, Lubgan D. R0 resection following chemo (radio)therapy improves survival of primary inoperable pancreatic cancer patients. Interim results of the German randomized CONKO-007± trial. Strahlenther Onkol 2020; 197:8-18. [PMID: 32914237 PMCID: PMC7801312 DOI: 10.1007/s00066-020-01680-2] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [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: 06/18/2020] [Accepted: 08/11/2020] [Indexed: 02/07/2023]
Abstract
Purpose Chemotherapy with or without radiotherapy is the standard in patients with initially nonmetastatic unresectable pancreatic cancer. Additional surgery is in discussion. The CONKO-007 multicenter randomized trial examines the value of radiotherapy. Our interim analysis showed a significant effect of surgery, which may be relevant to clinical practice. Methods One hundred eighty patients received induction chemotherapy (gemcitabine or FOLFIRINOX). Patients without tumor progression were randomized to either chemotherapy alone or to concurrent chemoradiotherapy. At the end of therapy, a panel of five independent pancreatic surgeons judged the resectability of the tumor. Results Following induction chemotherapy, 126/180 patients (70.0%) were randomized to further treatment. Following study treatment, 36/126 patients (28.5%) underwent surgery; (R0: 25/126 [19.8%]; R1/R2/Rx [n = 11/126; 6.1%]). Disease-free survival (DFS) and overall survival (OS) were significantly better for patients with R0 resected tumors (median DFS and OS: 16.6 months and 26.5 months, respectively) than for nonoperated patients (median DFS and OS: 11.9 months and 16.5 months, respectively; p = 0.003). In the 25 patients with R0 resected tumors before treatment, only 6/113 (5.3%) of the recommendations of the panel surgeons recommended R0 resectability, compared with 17/48 (35.4%) after treatment (p < 0.001). Conclusion Tumor resectability of pancreatic cancer staged as unresectable at primary diagnosis should be reassessed after neoadjuvant treatment. The patient should undergo surgery if a resectability is reached, as this significantly improves their prognosis.
Collapse
Affiliation(s)
- R Fietkau
- Department of Radiation Oncology, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), Erlangen, Germany.
| | - R Grützmann
- Department of Surgery, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), Erlangen, Germany
| | - U A Wittel
- Department for General- and Visceral Surgery, Medical Center and Faculty of Medicine, University of Freiburg, Freiburg, Germany
| | - R S Croner
- Department of Surgery, University Hospital Magdeburg, Magdeburg, Germany
| | - L Jacobasch
- Private practice, Hematology/Oncology, Dresden, Germany
| | - U P Neumann
- Department of Surgery, University Hospital RWTH Aachen, Aachen, Germany
| | - A Reinacher-Schick
- Department for Hematology, Oncology and Palliative Care, St Josef-Hospital, Ruhr-University Bochum, Bochum, Germany
| | - D Imhoff
- Department of Radiation Oncology, Universitätsklinikum Frankfurt, Frankfurt, Germany
| | - S Boeck
- Department of Medical Oncology and Comprehensive Cancer Centre, Klinikum Grosshadern, Ludwig-Maximilians-University of Munich, Munich, Germany
| | - L Keilholz
- Department of Radiotherapy, Clinical Center Bayreuth, Bayreuth, Germany
| | - H Oettle
- Outpatient Department Hematology/Oncology, Friedrichshafen, Germany
| | - W M Hohenberger
- Department of Surgery, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), Erlangen, Germany
| | - H Golcher
- Department of Surgery, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), Erlangen, Germany
| | - W O Bechstein
- Department of General and Visceral Surgery, Frankfurt University Hospital and Clinics, Frankfurt, Germany
| | - W Uhl
- Department of Surgery, St. Josef Hospital, Ruhr-University Bochum, Bochum, Germany
| | - A Pirkl
- Medical Centre for Information and Communication Technology, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), Erlangen, Germany
| | - W Adler
- Department of Medical Informatics, Biometry and Epidemiology, University of Erlangen-Nürnberg, Waldstraße 6, 91054, Erlangen, Germany
| | - S Semrau
- Department of Radiation Oncology, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), Erlangen, Germany
| | - S Rutzner
- Department of Radiation Oncology, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), Erlangen, Germany
| | - M Ghadimi
- Department of General, Visceral and Pediatric Surgery, Medical Center, Georg-August-University Göttingen, Göttingen, Germany
| | - D Lubgan
- Department of Radiation Oncology, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), Erlangen, Germany
| |
Collapse
|
6
|
Hofheinz RD, Arnold D, Fokas E, Kaufmann M, Hothorn T, Folprecht G, Fietkau R, Hohenberger W, Ghadimi M, Liersch T, Grabenbauer GG, Sauer R, Rödel C, Graeven U. Impact of age on the efficacy of oxaliplatin in the preoperative chemoradiotherapy and adjuvant chemotherapy of rectal cancer: a post hoc analysis of the CAO/ARO/AIO-04 phase III trial. Ann Oncol 2019; 29:1793-1799. [PMID: 29873684 DOI: 10.1093/annonc/mdy205] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022] Open
Abstract
Background The German rectal cancer trial CAO/ARO/AIO-04 has shown a significant benefit in 3-year disease-free survival (DFS) of adding oxaliplatin to a standard preoperative 5-fluorouracil (5-FU)-based chemoradiotherapy (CRT) and adjuvant chemotherapy in patients with locally advanced rectal cancer. The use of oxaliplatin as adjuvant treatment in elderly patients with colon cancer is controversial. We therefore investigated the impact of age on clinical outcome in the CAO/ARO/AIO-04 phase III trial. Patients and methods We carried out a post hoc analysis of the CAO/ARO/AIO-04 phase III trial evaluating primary and secondary end points according to age. Patient and tumor characteristics, NCI CTC adverse events grades 3-4 (version 3.0), dose intensities as well as survival and recurrence data were analyzed in three specified age groups (<60, 60-70, and ≥70 years). The influence of age as a continuous variable on DFS was modeled using a subpopulation treatment effect pattern plot (STEPP) analysis. Results A total of 1232 patients were assessable. With the exception of Eastern Cooperative Oncology Group status (P < 0.001), no differences in patient and tumor characteristics were noticed between age groups. Likewise, toxicity pattern, dose intensities of CRT and surgical results were similar in all age groups. After a median follow-up of 50 months, in patients aged <60 years a significant benefit of adding oxaliplatin to 5-FU-based CRT and adjuvant chemotherapy was observed for local (P = 0.013) and systemic recurrences (P = 0.023), DFS (P = 0.011), and even overall survival (OS; P = 0.044). The STEPP analysis revealed improved hazard ratios for DFS in patients aged 40-70 years compared with elderly patients treated with oxaliplatin. Conclusion The addition of oxaliplatin significantly improved DFS and OS in younger patients aged <60 years with advanced rectal cancer. Patients aged ≥70 years had no benefit. Clinical Trials Number NCT00349076.
Collapse
Affiliation(s)
- R-D Hofheinz
- Interdisciplinary Tumor Center, University Hospital Mannheim, University of Heidelberg, Heidelberg, Germany.
| | - D Arnold
- Department of Oncology and Hematology, Asklepios Clinic Altona, Hamburg, Germany
| | - E Fokas
- Department of Radiotherapy and Oncology, University of Frankfurt, German Cancer Research Center (DKFZ), Heidelberg; German Cancer Consortium (DKTK), Frankfurt, Germany
| | - M Kaufmann
- Epidemiology, Biostatistics and Prevention Institute, University of Zurich, Zurich, Switzerland
| | - T Hothorn
- Epidemiology, Biostatistics and Prevention Institute, University of Zurich, Zurich, Switzerland
| | - G Folprecht
- Department of Oncology, University Hospital Dresden, Dresden, Germany
| | - R Fietkau
- Department of Radiation Therapy, University of Erlangen-Nürnberg, Erlangen-Nürnberg, Germany
| | - W Hohenberger
- Department of General and Visceral Surgery, University of Erlangen-Nürnberg, Erlangen-Nürnberg, Germany
| | - M Ghadimi
- Department of General, Visceral and Pediatric Surgery, University Medical Center Göttingen, Göttingen, Germany
| | - T Liersch
- Department of General, Visceral and Pediatric Surgery, University Medical Center Göttingen, Göttingen, Germany
| | - G G Grabenbauer
- Department of Radiation Oncology and Radiotherapy, DiaCura & Klinikum, Coburg, Germany
| | - R Sauer
- Department of Radiation Therapy, University of Erlangen-Nürnberg, Erlangen-Nürnberg, Germany
| | - C Rödel
- Department of Radiotherapy and Oncology, University of Frankfurt, German Cancer Research Center (DKFZ), Heidelberg; German Cancer Consortium (DKTK), Frankfurt, Germany
| | - U Graeven
- Department of Hematology/Oncology and Gastroenterology, Kliniken Maria Hilf GmbH, Mönchengladbach, Germany
| | | |
Collapse
|
7
|
Fokas E, Fietkau R, Hartmann A, Hohenberger W, Grützmann R, Ghadimi M, Liersch T, Ströbel P, Grabenbauer GG, Graeven U, Hofheinz RD, Köhne CH, Wittekind C, Sauer R, Kaufmann M, Hothorn T, Rödel C. Neoadjuvant rectal score as individual-level surrogate for disease-free survival in rectal cancer in the CAO/ARO/AIO-04 randomized phase III trial. Ann Oncol 2019; 29:1521-1527. [PMID: 29718095 DOI: 10.1093/annonc/mdy143] [Citation(s) in RCA: 55] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
Background Surrogate end points in rectal cancer after preoperative chemoradiation are lacking as their statistical validation poses major challenges, including confirmation based on large phase III trials. We examined the prognostic role and individual-level surrogacy of neoadjuvant rectal (NAR) score that incorporates weighted cT, ypT and ypN categories for disease-free survival (DFS) in 1191 patients with rectal carcinoma treated within the CAO/ARO/AIO-04 phase III trial. Patients and methods Cox regression models adjusted for treatment arm, resection status, and NAR score were used in multivariable analysis. The four Prentice criteria (PC1-4) were used to assess individual-level surrogacy of NAR for DFS. Results After a median follow-up of 50 months, the addition of oxaliplatin to fluorouracil-based chemoradiotherapy (CRT) significantly improved 3-year DFS [75.9% (95% confidence interval [CI] 72.30% to 79.50%) versus 71.3% (95% CI 67.60% to 74.90%); P = 0.034; PC 1) and resulted in a shift toward lower NAR groups (P = 0.034, PC 2) compared with fluorouracil-only CRT. The 3-year DFS was 91.7% (95% CI 88.2% to 95.2%), 81.8% (95% CI 78.4% to 85.1%), and 58.1% (95% CI 52.4% to 63.9%) for low, intermediate, and high NAR score, respectively (P < 0.001; PC 3). NAR score remained an independent prognostic factor for DFS [low versus high NAR: hazard ratio (HR) 4.670; 95% CI 3.106-7.020; P < 0.001; low versus intermediate NAR: HR 1.971; 95% CI 1.303-2.98; P = 0.001] in multivariable analysis. Notwithstanding the inherent methodological difficulty in interpretation of PC 4 to establish surrogacy, the treatment effect on DFS was captured by NAR, supporting satisfaction of individual-level PC 4. Conclusion Our study validates the prognostic role and individual-level surrogacy of NAR score for DFS within a large randomized phase III trial. NAR score could help oncologists to speed up response-adapted therapeutic decision, and further large phase III trial data sets should aim to confirm trial-level surrogacy.
Collapse
Affiliation(s)
- E Fokas
- Department of Radiotherapy and Oncology, University of Frankfurt, Frankfurt, Germany; German Cancer Research Center (DKFZ), Heidelberg; German Cancer Consortium (DKTK), Partner Site: Frankfurt, Germany.
| | - R Fietkau
- Department of Radiation Therapy, University of Erlangen-Nürnberg, Erlangen, Germany
| | - A Hartmann
- Institute of Pathology, University of Erlangen-Nürnberg, Erlangen, Germany
| | - W Hohenberger
- Department of General and Visceral, University of Erlangen-Nürnberg, Erlangen, Germany
| | - R Grützmann
- Department of General and Visceral, University of Erlangen-Nürnberg, Erlangen, Germany
| | - M Ghadimi
- Department of General, Visceral and Pediatric Surgery, University Medical Center Göttingen, Göttingen, Germany
| | - T Liersch
- Department of General, Visceral and Pediatric Surgery, University Medical Center Göttingen, Göttingen, Germany
| | - P Ströbel
- Institute of Pathology, University Medical Center Göttingen, Göttingen, Germany
| | - G G Grabenbauer
- Department of Radiation Oncology and Radiotherapy, DiaCura & Klinikum Coburg, Coburg, Germany
| | - U Graeven
- Department of Hematology/Oncology, Kliniken Maria Hilf GmbH Mönchengladbach, Mönchengladbach, Germany
| | - R-D Hofheinz
- Department of Medical Oncology, University Hospital Mannheim, Mannheim, Germany
| | - C-H Köhne
- Department of Medical Oncology, University of Oldenburg, Oldenburg, Germany
| | - C Wittekind
- Institute of Pathology, University of Leipzig, Leipzig, Germany
| | - R Sauer
- Department of Radiation Therapy, University of Erlangen-Nürnberg, Erlangen, Germany
| | - M Kaufmann
- Epidemiology, Biostatistics and Prevention Institute, University of Zurich, Zurich, Switzerland
| | - T Hothorn
- Epidemiology, Biostatistics and Prevention Institute, University of Zurich, Zurich, Switzerland
| | - C Rödel
- Department of Radiotherapy and Oncology, University of Frankfurt, Frankfurt, Germany; German Cancer Research Center (DKFZ), Heidelberg; German Cancer Consortium (DKTK), Partner Site: Frankfurt, Germany
| | | |
Collapse
|
8
|
Wittel UA, Lubgan D, Ghadimi M, Belyaev O, Uhl W, Bechstein WO, Grützmann R, Hohenberger WM, Schmid A, Jacobasch L, Croner RS, Reinacher-Schick A, Hopt UT, Pirkl A, Oettle H, Fietkau R, Golcher H. Consensus in determining the resectability of locally progressed pancreatic ductal adenocarcinoma - results of the Conko-007 multicenter trial. BMC Cancer 2019; 19:979. [PMID: 31640628 PMCID: PMC6805375 DOI: 10.1186/s12885-019-6148-5] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2018] [Accepted: 09/10/2019] [Indexed: 01/05/2023] Open
Abstract
Background One critical step in the therapy of patients with localized pancreatic cancer is the determination of local resectability. The decision between primary surgery versus upfront local or systemic cancer therapy seems especially to differ between pancreatic cancer centers. In our cohort study, we analyzed the independent judgement of resectability of five experienced high volume pancreatic surgeons in 200 consecutive patients with borderline resectable or locally advanced pancreatic cancer. Methods Pretherapeutic CT or MRI scans of 200 consecutive patients with borderline resectable or locally advanced pancreatic cancer were evaluated by 5 independent pancreatic surgeons. Resectability and the degree of abutment of the tumor to the venous and arterial structures adjacent to the pancreas were reported. Interrater reliability and dispersion indices were compared. Results One hundred ninety-four CT scans and 6 MRI scans were evaluated and all parameters were evaluated by all surgeons in 133 (66.5%) cases. Low agreement was observed for tumor infiltration of venous structures (κ = 0.265 and κ = 0.285) while good agreement was achieved for the abutment of the tumor to arterial structures (interrater reliability celiac trunk κ = 0.708 P < 0.001). In patients with vascular tumor contact indicating locally advanced disease, surgeons highly agreed on unresectability, but in patients with vascular tumor abutment consistent with borderline resectable disease, the judgement of resectability was less uniform (dispersion index locally advanced vs. borderline resectable p < 0.05). Conclusion Excellent agreement between surgeons exists in determining the presence of arterial abutment and locally advanced pancreatic cancer. The determination of resectability in borderline resectable patients is influenced by additional subjective factors. Trial registration EudraCT:2009-014476-21 (2013-02-22) and NCT01827553 (2013-04-09).
Collapse
Affiliation(s)
- U A Wittel
- Department for General- und Visceral Surgery, Medical Center and Faculty of Medicine University of Freiburg, Hugstetter Straße 55, 79106, Freiburg, Germany.
| | - D Lubgan
- Department of Radiation Oncology, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), Erlangen, Germany
| | - M Ghadimi
- Department of General, Visceral and Pediatric Surgery, Medical Center Georg-August-University Göttingen, Göttingen, Germany
| | - O Belyaev
- Department of Surgery, St. Josef Hospital Ruhr-University Bochum, Bochum, Germany
| | - W Uhl
- Department of Surgery, St. Josef Hospital Ruhr-University Bochum, Bochum, Germany
| | - W O Bechstein
- Department of General and Visceral Surgery, Frankfurt University Hospital and Clinics, Frankfurt, Germany
| | - R Grützmann
- Department of Surgery, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), Erlangen, Germany
| | - W M Hohenberger
- Department of Surgery, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), Erlangen, Germany
| | - A Schmid
- Department of Radiology, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), Erlangen, Germany
| | - L Jacobasch
- Private Practice, Hematology/Oncology, Dresden, Germany
| | - R S Croner
- Department of Surgery, University Hospital Magdeburg, Magdeburg, Germany
| | - A Reinacher-Schick
- Department for Hematology, Oncology and Palliative Care, St Josef-Hospital, Ruhr-University Bochum, Bochum, Germany
| | - U T Hopt
- Department for General- und Visceral Surgery, Medical Center and Faculty of Medicine University of Freiburg, Hugstetter Straße 55, 79106, Freiburg, Germany
| | - A Pirkl
- Medical Centre for Information and Communication Technology, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), Erlangen, Germany
| | - H Oettle
- Outpatient Department Hematology/Oncology, Friedrichshafen, Germany
| | - R Fietkau
- Department of Radiation Oncology, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), Erlangen, Germany
| | - H Golcher
- Department of Surgery, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), Erlangen, Germany
| |
Collapse
|
9
|
Khoshpouri P, Hazhirkarzar B, Ameli S, Pandey A, Ghadimi M, Rezvani Habibabadi R, Aliyari Ghasabeh M, Pandey P, Shaghaghi M, Kamel I. Quantitative spleen and liver volume changes predict survival of patients with primary sclerosing cholangitis. Clin Radiol 2019; 74:734.e13-734.e20. [DOI: 10.1016/j.crad.2019.05.018] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2019] [Accepted: 05/20/2019] [Indexed: 01/01/2023]
|
10
|
Hofheinz R, Fokas E, Allgäuer M, Polat B, Klautke G, Grabenbauer G, Fietkau R, Kuhnt T, Staib L, Brunner T, Grosu A, Schmiegel W, Jacobasch L, Weitz J, Folprecht G, Germer C, Grützmann R, Schwarzbach M, Bechstein W, Friede T, Ghadimi M, Rödel C. Randomized phase 2 trial of chemoradiotherapy plus induction or consolidation chemotherapy as total neoadjuvant therapy for locally advanced rectal cancer: CAO/ARO/AIO-12. Ann Oncol 2019. [DOI: 10.1093/annonc/mdz154.010] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
|
11
|
Abstract
Abdominal and retroperitoneal sarcomas (RPS) represent approximately 25-30% of all soft tissue sarcomas, if besides typical retroperitoneal tumors gastrointestinal stromal tumors (GIST) are also included. The surgical R0 en bloc resection with histopathologically free margins is basically the only potentially curative treatment procedure. When planning the surgical strategy, the histopathological subtype and tumor localization are pivotal. The extent of resection should be guided by the goal to reach an en bloc resection with histopathologically negative margins. Due to the frequently found vast dimensions of RPS and ultimately topographic proximity to vital structures at primary diagnosis, R0 resections are not always achievable. Despite the introduction of multimodal treatment regimens and the development of standardized extended surgical procedures, such as systematic retroperitoneal compartmental resection (SRCR), local recurrences remain the most common cause of tumor-associated death. Finally, the results of the transatlantic RPS working group (TARPSWG) could show that treatment of RPS in specialized high-volume centers contributes to better long-term survival. Particularly in Germany there is an urgent demand for centralization of sarcoma patient treatment.
Collapse
Affiliation(s)
- M Ghadimi
- Klinik für Allgemein‑, Viszeral- und Tumorchirurgie, Uniklinikum Köln, Kerpener Straße 62, 50937, Köln, Deutschland.
| | - C J Bruns
- Klinik für Allgemein‑, Viszeral- und Tumorchirurgie, Uniklinikum Köln, Kerpener Straße 62, 50937, Köln, Deutschland
| |
Collapse
|
12
|
Diefenhardt M, Hofheinz R, Beissbarth T, Arnold D, Müller von den Grün J, Liersch T, Ströbel P, Grabenbauer G, Fietkau R, Weitz J, Ghadimi M, Rödel C, Fokas E. OC-0499 Neutrophilia as prognostic factor for outcome in the CAO/ARO/AIO-04 phase 3 rectal cancer trial. Radiother Oncol 2019. [DOI: 10.1016/s0167-8140(19)30919-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
|
13
|
Kosmala R, Fokas E, Flentje M, Sauer R, Liersch T, Graeven U, Fietkau R, Hohenberger W, Arnold D, Hofheinz R, Ghadimi M, Raab H, Ströbel P, Staib L, Grabenbauer G, Folprecht G, Uter W, Gall C, Rödel C, Polat B. OC-0384 QoL after multimodal treatment of rectal cancer with/without oxaliplatin (phase 3, CAO/ARO/AIO-04). Radiother Oncol 2019. [DOI: 10.1016/s0167-8140(19)30804-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
|
14
|
Payr S, Beck J, König U, Brunner M, Gaedcke J, Azizian A, Ghadimi M, Ellenrieder V, Schütz E, König AO. Cell free tumor-DNA can predict treatment outcome in advanced PDAC. Ann Oncol 2018. [DOI: 10.1093/annonc/mdy282.099] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
|
15
|
Sprenger T, Beißbarth T, Sauer R, Tschmelitsch J, Fietkau R, Liersch T, Hohenberger W, Staib L, Gaedcke J, Raab HR, Rödel C, Ghadimi M. Long-term prognostic impact of surgical complications in the German Rectal Cancer Trial CAO/ARO/AIO-94. Br J Surg 2018; 105:1510-1518. [DOI: 10.1002/bjs.10877] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2017] [Revised: 02/11/2018] [Accepted: 03/09/2018] [Indexed: 12/29/2022]
Abstract
Abstract
Background
The influence of postoperative complications on survival in patients with locally advanced rectal cancer undergoing combined modality treatment is debatable. This study evaluated the impact of surgical complications on oncological outcomes in patients with locally advanced rectal cancer treated within the randomized CAO/ARO/AIO-94 (Working Group of Surgical Oncology/Working Group of Radiation Oncology/Working Group of Medical Oncology of the Germany Cancer Society) trial.
Methods
Patients were assigned randomly to either preoperative chemoradiotherapy (CRT) followed by total mesorectal excision (TME) or postoperative CRT between 1995 and 2002. Anastomotic leakage and wound healing disorders were evaluated prospectively, and their associations with overall survival, and distant metastasis and local recurrence rates after a long-term follow-up of more than 10 years were determined. Medical complications (such as cardiopulmonary events) were not analysed in this study.
Results
A total of 799 patients were included in the analysis. Patients who had anterior or intersphincteric resection had better 10-year overall survival than those treated with abdominoperineal resection (63·1 versus 51·3 per cent; P < 0·001). Anastomotic leakage was associated with worse 10-year overall survival (51 versus 65·2 per cent; P = 0·020). Overall survival was reduced in patients with impaired wound healing (45·7 versus 62·2 per cent; P = 0·009). At 10 years after treatment, patients developing any surgical complication (anastomotic leakage and/or wound healing disorder) had impaired overall survival (46·6 versus 63·8 per cent; P < 0·001), a lower distant metastasis-free survival rate (63·2 versus 72·0 per cent; P = 0·030) and more local recurrences (15·5 versus 6·4 per cent; P < 0·001). In a multivariable Cox regression model, lymph node metastases (P < 0·001) and surgical complications (P = 0·008) were the only independent predictors of reduced overall survival.
Conclusion
Surgical complications were associated with adverse oncological outcomes in this trial.
Collapse
Affiliation(s)
- T Sprenger
- Department of General, Visceral and Paediatric Surgery, University Medical Centre Göttingen, Göttingen, Germany
| | - T Beißbarth
- Department of Medical Statistics, University Medical Centre Göttingen, Göttingen, Germany
| | - R Sauer
- Department of Radiotherapy, University Medical Centre Erlangen, Erlangen, Germany
| | - J Tschmelitsch
- Department of Surgery, Krankenhaus der Barmherzigen Brüder, St Veit an der Glan, Austria
| | - R Fietkau
- Department of Radiotherapy, University Medical Centre Erlangen, Erlangen, Germany
| | - T Liersch
- Department of General, Visceral and Paediatric Surgery, University Medical Centre Göttingen, Göttingen, Germany
| | - W Hohenberger
- Department of Surgery, University Medical Centre Erlangen, Erlangen, Germany
| | - L Staib
- Department of General and Visceral Surgery, Klinikum Esslingen, Esslingen, Germany
| | - J Gaedcke
- Department of General, Visceral and Paediatric Surgery, University Medical Centre Göttingen, Göttingen, Germany
| | - H-R Raab
- University Department of General and Visceral Surgery, Klinikum Oldenburg, Oldenburg, Germany
| | - C Rödel
- Department of Radiotherapy and Oncology, University Medical Centre Frankfurt, Frankfurt/Main, Germany
| | - M Ghadimi
- Department of General, Visceral and Paediatric Surgery, University Medical Centre Göttingen, Göttingen, Germany
| |
Collapse
|
16
|
Fokas E, Fietkau R, Hartmann A, Hohenberger W, Grützmann R, Ghadimi M, Liersch T, Ströbel P, Grabenbauer G, Wittekind C, Sauer R, Kaufmann M, Hothorn T, Rödel C. OC-0278: NAR score as surrogate for disease-free survival in the CAO/ARO/AIO-04 phase 3 rectal cancer trial. Radiother Oncol 2018. [DOI: 10.1016/s0167-8140(18)30588-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
|
17
|
Ghadimi M, Dashti-Khavidaki S, Shahali M, Gohari M, Khatami MR, Alamdari A. Tacrolimus interaction with oral oestrogen in kidney transplant recipients: A case-control study. J Clin Pharm Ther 2018; 43:513-518. [DOI: 10.1111/jcpt.12672] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2017] [Accepted: 01/18/2018] [Indexed: 12/16/2022]
Affiliation(s)
- M. Ghadimi
- Faculty of Pharmacy, Resident of Clinical Pharmacy; Tehran University of Medical Sciences; Tehran Iran
- Resident of Clinical Pharmacy; Liver Transplantation Research Center; Imam Khomeini Hospital Complex; Tehran University of Medical Sciences; Tehran Iran
| | - S. Dashti-Khavidaki
- Nephrology Research Center; Tehran University of Medical Sciences; Tehran Iran
- Faculty of Pharmacy; Tehran University of Medical Sciences; Tehran Iran
| | - M. Shahali
- Faculty of Pharmacy; Tehran University of Medical Sciences; Tehran Iran
| | - M. Gohari
- Faculty of Pharmacy; Tehran University of Medical Sciences; Tehran Iran
| | - M.-R. Khatami
- Nephrology Research Center; Tehran University of Medical Sciences; Tehran Iran
| | - A. Alamdari
- Nephrology Research Center; Tehran University of Medical Sciences; Tehran Iran
| |
Collapse
|
18
|
Rabe C, Ghadimi M, König S. [Undergraduate Medical Students "On Call" to Assist in Theatre: Analysis of the Financial Aspects and a Mixed-Method Study Exploring Their Motives for Working]. Zentralbl Chir 2016; 142:25-31. [PMID: 27327253 DOI: 10.1055/s-0042-109560] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Abstract
Background/Purpose: Surgical patient care has grown in complexity, as hospital workload has continuously increased. We therefore established a pool of "undergraduate medical students on call" to assist in the theatre outside working hours. We aimed to recruit talented students to reduce the burden on physicians and to motivate students into entering surgery. Methods: An exploratory mixed-method study was performed. In a qualitative study, guided interviews were conducted with five students about their reasons for working in the theatre and the results were used to construct an online questionnaire using EvaSys®. This was presented to 16 current and former students in a subsequent quantitative study. Furthermore, the cost of student employment was calculated and compared with physicians' salaries. Results: In 2013 and 2014, 8-9 students worked a total of 1063 and 1211 hours in the theatre, respectively. The difference in salaries between the students and surgical residents was € 28.37 per hour. We calculated that the annual savings were approximately € 60,000. When questioned on their motives during the interview, only a few students emphasised the financial aspects, whereas the majority emphasised the gain in experience. The analysis was based on comparison of the mean values (online survey) with a 4-point Likert scale (1 = high acceptance; 4 = no acceptance). We defined the motives with a mean ≤ 1.3 as primary. Based on this selection, gathering experience, fun/enjoyment, interest in surgery, and the change from studying were considered as distinct motives. In the interviews, students clearly pointed out that teaching and learning opportunities in the theatre were not commonly taken advantage of and that interaction with the surgeons should be improved. Conclusion: Students actively chose to work as assistants in the theatre, for a variety of motives. The financial aspects were subordinate. The concept of students assisting in the theatre is favourable for both employers and students. However, the results also reveal that there is room for improvement in the implementation of the concept.
Collapse
Affiliation(s)
- C Rabe
- Lehrstuhl Medizinische Lehre und Ausbildungsforschung, Universitätsklinikum Würzburg, Deutschland
| | - M Ghadimi
- Allgemein-, Viszeral- und Kinderchirurgie, Universitätsmedizin Göttingen, Deutschland
| | - S König
- Lehrstuhl Medizinische Lehre und Ausbildungsforschung, Universitätsklinikum Würzburg, Deutschland
| |
Collapse
|
19
|
Sprenger T, Rothe H, Beissbarth T, Conradi LC, Kauffels A, Homayounfar K, Behnes CL, Rödel C, Liersch T, Ghadimi M. [Lymph node metastases in ypT1/2 rectal cancer after neoadjuvant chemoradiotherapy : The Achilles heel of organ-preserving operative procedures?]. Chirurg 2016; 87:593-601. [PMID: 27106241 DOI: 10.1007/s00104-016-0170-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [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: 01/04/2023]
Abstract
BACKGROUND For patients with rectal cancer and complete remission (ypT0) or with good response and residual tumor restricted only to the bowel wall (ypT1-2) after neoadjuvant chemoradiotherapy (CRT), local excision has been suggested as an alternative to avoid the significant morbidity and functional deficits associated with total mesorectal excision (TME). The aim of this investigation was to investigate the incidence, distribution and tumor-related localization of mesorectal lymph node (LN) metastases in TME specimens with complete remission (ypT0), intramural (ypT1-2) and extramural (ypT3-4) residual tumor tissue. PATIENTS AND METHODS Specimens of TME from 81 patients with locally advanced rectal cancer (UICC II-III) undergoing neoadjuvant CRT within the phase III German rectal cancer trial CAO/ARO/AIO-04 were prospectively evaluated. The entire mesorectal compartment was microscopically screened after complete paraffin embedding. The number and localization of all detectable LN metastases were documented in relation to the primary tumor. RESULTS Whereas 50 patients (62 %) had ypT3-4 rectal cancer after neoadjuvant CRT, 20 patients (25 %) presented with residual tumor within the bowel wall (ypT1-2), 11 patients (14 %) had pathological complete remission (ypT0), an average of 28 ± 13.7 LN were detected per specimen and 25 patients (31 %) had residual LN metastases after CRT. Although the incidence of LN metastases was higher in the ypT3-4 group (40 %), 25 % of patients in the ypT1-2 group with intramural residual tumor had a mean number of 2.2 residual LN metastases of which 55 % were located far from the primary lesion in the proximal mesorectum. None of the patients with ypT0 status (complete response) had residual LN metastases. CONCLUSION Even in patients with good response and post-CRT tumor tissue restricted only to the bowel wall (ypT1-2), there is still a considerable risk for residual LN metastases. Local excision of residual rectal cancer was accompanied by a higher rate of local failure and radical surgery with TME should remain the standard treatment in these patients. To date, valid selection criteria for patients eligible for organ-sparing surgery are still lacking.
Collapse
Affiliation(s)
- T Sprenger
- Klinik für Allgemein-, Viszeral- und Kinderchirurgie, Universitätsmedizin Göttingen, Robert-Koch-Str. 40, 37099, Göttingen, Deutschland.
| | - H Rothe
- Medizinisches Versorgungszentrum Göttingen (MVZ), 37081, Göttingen, Deutschland
| | - T Beissbarth
- Institut für Medizinische Statistik, Universitätsmedizin Göttingen, 37099, Göttingen, Deutschland
| | - L-C Conradi
- Klinik für Allgemein-, Viszeral- und Kinderchirurgie, Universitätsmedizin Göttingen, Robert-Koch-Str. 40, 37099, Göttingen, Deutschland
| | - A Kauffels
- Klinik für Allgemein-, Viszeral- und Kinderchirurgie, Universitätsmedizin Göttingen, Robert-Koch-Str. 40, 37099, Göttingen, Deutschland
| | - K Homayounfar
- Klinik für Allgemein-, Viszeral- und Kinderchirurgie, Universitätsmedizin Göttingen, Robert-Koch-Str. 40, 37099, Göttingen, Deutschland
| | - C L Behnes
- Institut für Pathologie, Universitätsmedizin Göttingen, 37099, Göttingen, Deutschland
| | - C Rödel
- Klinik für Strahlentherapie und Onkologie, Universitätsklinikum Frankfurt, 60590, Frankfurt/Main, Deutschland
| | - T Liersch
- Klinik für Allgemein-, Viszeral- und Kinderchirurgie, Universitätsmedizin Göttingen, Robert-Koch-Str. 40, 37099, Göttingen, Deutschland
| | - M Ghadimi
- Klinik für Allgemein-, Viszeral- und Kinderchirurgie, Universitätsmedizin Göttingen, Robert-Koch-Str. 40, 37099, Göttingen, Deutschland
| |
Collapse
|
20
|
Abstract
The implementation of robot-assisted surgery requires a multi disciplinary approach with appropriate training and cooperation of surgical, anesthetic and technical staff. Besides acquiring the technical skills and getting used to complex technique, patient selection and an appropriate frequency of procedures are required to avoid complications.
Collapse
Affiliation(s)
- J-H Egberts
- Klinik für Allgemein-, Viszeral- und Kinderchirurgie, Universitätsmedizin Göttingen, Deutschland
| | - A Beham
- Klinik für Allgemein-, Viszeral-, Thorax-, Transplantations- und Kinderchirurgie, Universitätsklinikum Schleswig Holstein, Campus Kiel, Deutschland
| | - M Ghadimi
- Klinik für Allgemein-, Viszeral-, Thorax-, Transplantations- und Kinderchirurgie, Universitätsklinikum Schleswig Holstein, Campus Kiel, Deutschland
| |
Collapse
|
21
|
Schirmer M, Mergler C, Droege L, Guhlich M, Gaedcke J, Ghadimi M, Rave-Fränk M. EP-2057: Radiotoxicity prediction by gene expression profiling when simulating therapy in matched fibroblasts. Radiother Oncol 2016. [DOI: 10.1016/s0167-8140(16)33308-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
|
22
|
Landmann H, Proia DA, He S, Ogawa LS, Kramer F, Beißbarth T, Grade M, Gaedcke J, Ghadimi M, Moll U, Dobbelstein M. UDP glucuronosyltransferase 1A expression levels determine the response of colorectal cancer cells to the heat shock protein 90 inhibitor ganetespib. Cell Death Dis 2014; 5:e1411. [PMID: 25210794 PMCID: PMC4540199 DOI: 10.1038/cddis.2014.378] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.2] [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: 04/08/2014] [Revised: 06/30/2014] [Accepted: 07/21/2014] [Indexed: 12/28/2022]
Abstract
HSP90 inhibition represents a promising route to cancer therapy, taking advantage of cancer cell-inherent proteotoxic stress. The HSP90-inhibitor ganetespib showed benefit in advanced clinical trials. This raises the need to identify the molecular determinants of treatment response. We tested the efficacy of ganetespib on a series of colorectal cancer (CRC)-derived cell lines and correlated their sensitivities with comprehensive gene expression analysis. Notably, the drug concentration required for 50% growth inhibition (IC50) varied up to 70-fold (from 36 to 2500 nM) between different cell lines. Correlating cell line-specific IC50s with the corresponding gene expression patterns revealed a strong association between ganetespib resistance (IC50>500 nM) and high expression of the UDP glucuronosyltransferase 1A (UGT1A) gene cluster. Moreover, CRC tumor samples showed a comparable distribution of UGT1A expression levels. The members of the UGT1A gene family are known as drug-conjugating liver enzymes involved in drug excretion, but their function in tumor cells is hardly understood. Chemically unrelated HSP90 inhibitors, for example, 17-N-allylamino-17-demethoxygeldanamycin (17-AAG), did not show correlation of drug sensitivities with UGT1A levels, whereas the ganetespib-related compound NVP-AUY922 did. When the most ganetespib-resistant cell line, HT29, was treated with ganetespib, the levels of HSP90 clients were unaffected. However, HT29 cells became sensitized to the drug, and HSP90 client proteins were destabilized by ganetespib upon siRNA-mediated UGT1A knockdown. Conversely, the most ganetespib-sensitive cell lines HCT116 and SW480 became more tolerant toward ganetespib upon UGT1A overexpression. Mechanistically, ganetespib was rapidly glucuronidated and excreted in resistant but not in sensitive CRC lines. We conclude that CRC cell-expressed UGT1A inactivates ganetespib and other resorcinolic Hsp90 inhibitors by glucuronidation, which renders the drugs unable to inhibit Hsp90 and thereby abrogates their biological activity. UGT1A levels in tumor tissues may be a suitable predictive biomarker to stratify CRC patients for ganetespib treatment.
Collapse
Affiliation(s)
- H Landmann
- Göttingen Centre of Molecular Biosciences (GZMB), Institute of Molecular Oncology, Faculty of Medicine, University of Göttingen, 37077 Göttingen, Germany
| | - D A Proia
- Synta Pharmaceuticals Corp, 45 Hartwell Avenue, Lexington, MA 02421, USA
| | - S He
- Synta Pharmaceuticals Corp, 45 Hartwell Avenue, Lexington, MA 02421, USA
| | - L S Ogawa
- Synta Pharmaceuticals Corp, 45 Hartwell Avenue, Lexington, MA 02421, USA
| | - F Kramer
- Department of Medical Statistics, University Medical Center Göttingen, Göttingen, Germany
| | - T Beißbarth
- Department of Medical Statistics, University Medical Center Göttingen, Göttingen, Germany
| | - M Grade
- Department of General, Visceral and Pediatric Surgery, University Medical Center Göttingen, Göttingen, Germany
| | - J Gaedcke
- Department of General, Visceral and Pediatric Surgery, University Medical Center Göttingen, Göttingen, Germany
| | - M Ghadimi
- Department of General, Visceral and Pediatric Surgery, University Medical Center Göttingen, Göttingen, Germany
| | - U Moll
- 1] Göttingen Centre of Molecular Biosciences (GZMB), Institute of Molecular Oncology, Faculty of Medicine, University of Göttingen, 37077 Göttingen, Germany [2] Department of Pathology, School of Medicine, Stony Brook University, Stony Brook, NY 11794, USA
| | - M Dobbelstein
- Göttingen Centre of Molecular Biosciences (GZMB), Institute of Molecular Oncology, Faculty of Medicine, University of Göttingen, 37077 Göttingen, Germany
| |
Collapse
|
23
|
Homayounfar K, Bleckmann A, Helms HJ, Lordick F, Rüschoff J, Conradi LC, Sprenger T, Ghadimi M, Liersch T. Discrepancies between medical oncologists and surgeons in assessment of resectability and indication for chemotherapy in patients with colorectal liver metastases. Br J Surg 2014; 101:550-7. [PMID: 24756914 DOI: 10.1002/bjs.9436] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/17/2013] [Indexed: 12/18/2022]
Abstract
BACKGROUND Multidisciplinary discussion of the treatment of patients with colorectal liver metastases (CRLM) is advocated currently. The aim of this study was to investigate medical oncologists' and surgeons' assessment of resectability and indication for chemotherapy, and the effect of an educational intervention on such assessment. METHODS Medical histories of 30 patients with CRLM were presented to ten experienced medical oncologists and 11 surgeons at an initial virtual tumour board meeting (TB1). Treatment recommendations were obtained from each participant by voting for standardized answers. Following lectures on the potential of chemotherapy and surgery, assessment was repeated at a second virtual tumour board meeting (TB2), using the same patients and participants. RESULTS Overall, 630 answers (21 × 30) were obtained per tumour board meeting. At TB1, resectability was expected more frequently by surgeons. Participants changed 56·8 per cent of their individual answers at TB2. Assessment shifted from potentially resectable to resectable CRLM in 81 of 161 and from unresectable to (potentially) resectable CRLM in 29 of 36 answers. Preoperative chemotherapy was indicated more often by medical oncologists, and overall was included in 260 answers (41·3 per cent) at TB1, compared with only 171 answers (27·1 per cent) at TB2. Medical oncologists more often changed their decision to primary resection in resectable patients (P = 0·006). Postoperative chemotherapy was included in 51·9 and 52·4 per cent of all answers at TB1 and TB2 respectively, with no difference in changes between medical oncologists and surgeons (P = 0·980). CONCLUSION Resectability and indication for preoperative chemotherapy were assessed differently by medical oncologists and surgeons. The educational intervention resulted in more patients deemed resectable by both oncologists and surgeons, and less frequent indication for chemotherapy.
Collapse
Affiliation(s)
- K Homayounfar
- Departments of General and Visceral Surgery, Georg-August University, Göttingen, Germany
| | | | | | | | | | | | | | | | | |
Collapse
|
24
|
Abstract
Within the last decade, there has been a tremendous progress in understanding the molecular basis of cancer. In particular, the development and the characteristic features of cancer cells are being increasingly understood. The understanding of these molecular characteristics is mandatory for the development of novel, targeted therapeutic strategies and their integration into clinical practice. In addition, tumour genetics play a critically important role for hereditary cancer syndromes, with respect to both diagnostics and clinical decision-making. The aim of this review is to highlight general principles of tumour genetics from a visceral surgeon's point of view, although a comprehensive summary of all aspects would be beyond the scope of this article due to the complexity of the topic.
Collapse
Affiliation(s)
- G Emons
- Allgemein-, Viszeral- und Kinderchirurgie, Universitätsmedizin Göttingen, Deutschland
| | - M Ghadimi
- Allgemein-, Viszeral- und Kinderchirurgie, Universitätsmedizin Göttingen, Deutschland
| | - M Grade
- Allgemein-, Viszeral- und Kinderchirurgie, Universitätsmedizin Göttingen, Deutschland
| |
Collapse
|
25
|
Pauly S, Schulze FP, Horstmann O, Becker H, Grade M, Ghadimi M. [Value of one-stage surgical treatment of diffuse peritonitis (relaparotomy on demand): a single-center analysis]. Zentralbl Chir 2013; 138:289-94. [PMID: 23575522 DOI: 10.1055/s-0032-1328006] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Abstract
BACKGROUND Despite modern surgical and intensive-care concepts, diffuse peritonitis remains a major source of high morbidity and mortality. The aim of this study was to critically evaluate the value of relaparotomy on demand (ROD) for patients with diffuse peritonitis. PATIENTS AND RESULTS In a retrospective analysis, the clinical course of 231 patients with diffuse peritonitis was analysed. The mean Mannheim Peritonitis Index (MPI) was 25.3. Overall lethality in this cohort was 14.3 %. In 214 patients, source control was successful during the index operation, and these patients were treated according to an on-demand strategy. For 178 of these patients, there was no demand for a relaparotomy, whereas 36 of these patients required further surgical interventions. Lethality for these subgroups was 9 % (no relaparotomy) and 27 % (relaparotomy), respectively. CONCLUSIONS This retrospective analysis confirms that an on-demand strategy is reasonable and feasible after successful source control and lavage. However, it still remains of clinical importance to identify parameters that may assist in selecting those patients who require a relaparotomy.
Collapse
Affiliation(s)
- S Pauly
- Centrum für Muskuloskeletale Chirurgie, Charité Universitätsmedizin Berlin, Deutschland
| | | | | | | | | | | |
Collapse
|
26
|
Abstract
INTRODUCTION Giant inguinoscrotal hernias are rare but still exist even in developed countries. Although accompanied by a higher perioperative mortality, an elective surgical approach should be undertaken. In critically ill patients, however, the surgical intervention requires specific demands. METHODS We report a case of a 45-year-old man who was referred to the hospital after perforation of the hernia with concomitant peritonitis and sepsis. RESULTS After initial stabilization of the patient, a subtotal colectomy and a partial small bowl resection was performed. In a second step after stabilization of organ functions, the hernia sac was resected, and the abdominal cavity was reconstructed. The patient was discharged and is doing well until today but still refuses any plastic surgery. CONCLUSION Resection of giant inguinoscrotal hernia is feasible even in patients being administered in an emergency setting. Especially in case of an intra-abdominal infection, intestinal resection is the therapy of choice to allow the reconstruction of the abdominal cavity. A two-step approach should be considered to allow a successful recovery.
Collapse
Affiliation(s)
- J Gaedcke
- Department of General and Visceral Surgery, University Medical Center Göttingen, Göttingen, Germany.
| | | | | | | | | |
Collapse
|
27
|
Hennies S, Wolff H, Jung K, Rave-Fränk M, Gaedcke J, Ghadimi M, Hess C, Becker H, Hermann R, Christiansen H. Testicular radiation dose after multimodal curative therapy for locally advanced rectal cancer. Strahlenther Onkol 2012; 188:926-32. [DOI: 10.1007/s00066-012-0139-7] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2012] [Accepted: 04/19/2012] [Indexed: 11/12/2022]
|
28
|
Angerstein C, Liersch T, Ghadimi M, Sahlmann CO, Meller J, Meller B. 68Ga-markierte Peptide für klinische Studien. Nuklearmedizin 2012; 51:55-64. [DOI: 10.3413/nukmed-0435-11-10] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2011] [Accepted: 02/22/2011] [Indexed: 11/20/2022]
Abstract
SummaryThe AMG implies far-reaching implications for the synthesis of new radiopharmaceuticals for clinical trials. Aim, methods: As a part of the DFG-funded Clinical Research Group (KFO 179) a project designated „Immuno-PET for assessment of early response to radiochemotherapy of advanced rectal cancer“ was initiated. This trial is focused on a trivalent bispecific humanized monoclonal antibody, and a 68Ga-labeled peptide. Following the new regulatory framework we established a GMPcompliant cleanroom laboratory and applied for a manufacturing permission. Results: During the project constructural, personnel and organizational conditions for a successful application were established, including a quality management system. A GMP-conform cleanroom laboratory class C was constructed, equipped with a two-chamber lock. The actual manufacturing is performed in a closed system with subsequent sterile filtration. The manufacturing processes have been automatised and validated as well as the necessary quality controls. The manufacturing permission was granted after an official inspection. Conclusions: The new German Drug Act is considered as a break in the production practice of nuclear medicine. The early involvement and communication with the authorities avoids time-consuming and costly planning errors. It is much to be hoped that the new legal situation in Germany will not cause serious impairments in the realization of clinical trials in German nuclear medicine.
Collapse
|
29
|
Gaedcke J, Grade M, Jung K, Camps J, Jo P, Becker H, Beibbarth T, Ried T, Ghadimi M. 187 The effect of KRAS mutations on the rectal cancer transcriptome: clinical implications. EJC Suppl 2010. [DOI: 10.1016/s1359-6349(10)71892-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
|
30
|
Fritscher-Ravens A, Cuming T, Eisenberger CF, Ghadimi M, Nilges A, Meybohm P, Schiffmann S, Jacobsen B, Seehusen F, Niemann H, Knoefel WT. Randomized comparative long-term survival study of endoscopic and thoracoscopic esophageal wall repair after NOTES mediastinoscopy in healthy and compromised animals. Endoscopy 2010; 42:468-74. [PMID: 20333608 DOI: 10.1055/s-0029-1244019] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
BACKGROUND AND STUDY AIMS Natural orifice transluminal endoscopic surgery (NOTES) has not yet been widely adopted because of lack of suitable equipment and fear of possible serious complications, especially in the mediastinum. We compared endoscopic with thoracoscopic esophageal wall repair after full-thickness esophageal wall incision (FTEI) and NOTES mediastinoscopy in healthy versus compromised animals. METHODS After FTEI for mediastinoscopy, 24 pigs (12 healthy, 12 compromised) were randomly allocated to endoscopic or thoracoscopic repair (each arm of each group, n = 6). They were kept alive for 3 months after endoscopic closure with prototype T-anchor suturing or thoracoscopic repair. RESULTS FTEI and mediastinoscopy were uneventful in all as was the initial repair of the incision (mean repair times: thoracoscopic 65 +/- 3.2 minutes, endoscopic 52 +/- 5.1 minutes; P < 0.0005). Post procedure, all 12 healthy pigs thrived with no complications or deaths. Two compromised animals died during the preparation period, and had to be replaced. In the compromised group, during endoscopic repair, 2 / 6 pigs suffered from gastric reflux into esophagus and mediastinum; the repair was completed and the pigs kept alive; one subsequently died of mediastinitis, and in the other, autopsy showed a gastric abscess in the lower mediastinum. Regarding the compromised thoracoscopic subgroup, one animal died from mediastinitis and all had abscesses at or near the incision sites. CONCLUSION Transesophageal mediastinoscopy could be performed equally well as the transthoracic procedure, both in healthy and compromised animals. However, on follow-up, the compromised animals had worse outcomes, with more complications and two deaths (17 %), one in each arm.
Collapse
|
31
|
Zarrindast MR, Ghadimi M, Ramezani-Tehrani B, Sahebgharani M. EFFECT OF GABA RECEPTOR AGONISTS OR ANTAGONISTS ON MORPHINE-INDUCED STRAUB TAIL IN MICE. Int J Neurosci 2009; 116:963-73. [PMID: 16861161 DOI: 10.1080/00207450600550428] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Abstract
The effects of GABA receptor agents on Straub tail induced by morphine were investigated in mice. Subcutaneous injection of different doses of morphine (10-60 mg/kg) induced a dose-dependent Straub tail in mice. Maximum response was obtained with 40 mg/kg of the drug, 30 min after the drug administration. The morphine response was decreased by subcutaneous injection of naloxone (0.5-2 mg/kg). Intraperitoneal administration of different doses of baclofen (2-8 mg/kg) reduced Straub tail induced by morphine (40 mg/kg). The response of baclofen was decreased by Intraperitoneal injection of CGP35348 (150 mg/kg). CGP35348 by itself did not elicit any response. Different Intraperitoneally doses of muscimol (1-4 mg/kg) bicuculline (1-3 mg/kg), or picrotoxin (1-3 mg/kg) also reduced morphine effect. The effect of muscimol was not altered by bicuculline pretreatment. It is concluded that both GABAA and GABAB receptor activation reduced Straub tail induced by morphine.
Collapse
Affiliation(s)
- M R Zarrindast
- Department of Pharmacology, Medical School, Tehran University of Medical Sciences, Iran.
| | | | | | | |
Collapse
|
32
|
|
33
|
Liersch T, Meller J, Sahlmann C, Ghadimi M, Becker H, Goldenberg DM. Repeated anti-CEA-radioimmunotherapy (RAIT) with 131iodine-labetuzumab (phase II study) versus single dose RAIT after salvage resection of colorectal liver metastases (CRC-LM). J Clin Oncol 2008. [DOI: 10.1200/jco.2008.26.15_suppl.4080] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
|
34
|
Langer C, Liersch T, Markus P, Süss M, Ghadimi M, Füzesi L, Becker H. Transanal endoscopic microsurgery (TEM) for minimally invasive resection of rectal adenomas and "Low-risk" carcinomas (uT1, G1 - 2). Z Gastroenterol 2002; 40:67-72. [PMID: 11857100 DOI: 10.1055/s-2002-20210] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
Abstract
Transanal endoscopic microsurgery (TEM) presents a minimally invasive procedure for local removal of large rectal adenomas (>/= 2 cm) and early, so called "low-risk" carcinomas (uT1, G1 - 2) in curative as well as of advanced tumors in palliative intent. Over a 6-year period 92 TEM excisions of rectal tumors were carried out including 91 patients with 56 adenomas, 35 carcinomas (9 pTis, 17 pT1, 5 pT2, 3 pT3, 1 Ca after snare diathermy) and one neurinoma. Two patients of the carcinoma group had to be reoperated by means of anterior resection due to false preoperative rectal ultrasound examination (2 x uT1--> pT2). 4 patients required palliative therapy on account of age or high morbidity. After a mean follow-up time of 23 months (adenomas 23 months, pT1 carcinoma 26 months and advanced tumors 38 months) we encountered a total of 7 complications, of which in 5 cases surgical reintervention was necessary (5,4 %). One 86-year-old patient with a pT2-carcinoma, who was unsuitable for low anterior resection due to a high morbidity risk, died from myocardial infarction after emergency reintervention caused by postoperative bleeding. To date, overall 9 recurrences occurred (9,8 %). In the specific target group of TEM (adenomas and pT1, G1-2 carcinomas) consisting of n = 83 cases, the overall recurrence rate was 7,2 %, of which 5,3 % were due to adenomas and 11,5 % due to carcinomas. After palliative excision 2 recurrences occurred. These results of transanal endoscopic microsurgery (TEM) indicate that this technique has a useful place in curative, as well as in palliative management of rectal tumors.
Collapse
Affiliation(s)
- C Langer
- Department of General Surgery, Georg August University, Göttingen, Germany.
| | | | | | | | | | | | | |
Collapse
|
35
|
Wenzel J, Sanzenbacher R, Ghadimi M, Lewitzky M, Zhou Q, Kaplan DR, Kabelitz D, Feller SM, Janssen O. Multiple interactions of the cytosolic polyproline region of the CD95 ligand: hints for the reverse signal transduction capacity of a death factor. FEBS Lett 2001; 509:255-62. [PMID: 11741599 DOI: 10.1016/s0014-5793(01)03174-x] [Citation(s) in RCA: 43] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
The CD95/Fas/Apo-1 ligand is expressed on activated lymphocytes, NK cells, platelets, certain immune-privileged cells and some tumor cells and induces apoptosis through the death receptor CD95/Fas/Apo-1. In murine T cells, membrane-bound CD95L (Fas ligand) also acts as a costimulatory receptor to coordinate activation and function in vivo. The molecular basis for this reverse signal transduction is yet unknown. In the present report, we identify individual interaction domains of enzymes and adapter molecules that selectively interact with full-length CD95L from transfectants and human T cells. These results may help to explain the costimulatory capacity of CD95L.
Collapse
Affiliation(s)
- J Wenzel
- Institute for Immunology, Christian-Albrechts-University, Michaelisstrasse 5, 24105 Kiel, Germany
| | | | | | | | | | | | | | | | | |
Collapse
|