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Arentoft NS, Fialla AD, Krohn PS, Patursson MT, Thudium RF, Suarez-Zdunek MA, Høgh J, Lauridsen EHE, Hansen JB, Jensen JUS, Perch M, Møller DL, Pommergaard HC, Aagaard NK, Davidsen JR, Lange P, Çolak Y, Afzal S, Nordestgaard BG, Rasmussen A, Nielsen SD. Fraction of exhaled nitric oxide is higher in liver transplant recipients than in controls from the general population: a cohort study. Front Immunol 2024; 15:1330923. [PMID: 38361926 PMCID: PMC10867152 DOI: 10.3389/fimmu.2024.1330923] [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: 10/31/2023] [Accepted: 01/02/2024] [Indexed: 02/17/2024] Open
Abstract
Background Fraction of exhaled nitric oxide with an expiratory flow of 50 mL/s (FENO50) is a biomarker of eosinophilic airway inflammation. Liver transplant recipients have an increased risk of pulmonary infections, but little is known about the burden of chronic pulmonary diseases in this group. We aimed to assess the prevalence of elevated FENO50 in liver transplant recipients and compare it to controls from the general population. Methods FENO50 was measured in 271 liver transplant recipients from The Danish Comorbidity in Liver Transplant Recipients (DACOLT) study and 1,018 age- and sex-matched controls from The Copenhagen General Population Study (CGPS). Elevated FENO50 was defined as ≥25 or ≥50 parts per billion (ppb). The analyses were adjusted for known and suspected confounders. Results The median age of the liver transplant recipients was 55 years (interquartile range (IQR) 46-64), and 58% were men. The liver transplant recipients had a higher median FENO50 than the controls [16 ppb (IQR 10-26) vs. 13 ppb (IQR 8-18.), p < 0.001]. Furthermore, the liver transplant recipients had a higher prevalence of elevated FENO50 (for FENO50 ≥25 ppb 27% vs. 11%, p < 0.001 and ≥50 ppb 4% vs. 2%, p = 0.02). The results were similar after adjusting for age, sex, smoking status, use of airway medication, and blood eosinophil counts [the adjusted odds ratio (OR) for FENO50 ≥25 ppb was 3.58 (95% CI: 2.50-5.15, p < 0.0001) and the adjusted OR for FENO50 ≥50 ppb was 3.14 (95% CI: 1.37-7.20, p = 0.007)]. Conclusion The liver transplant recipients had elevated FENO50, implying increased eosinophilic airway inflammation. The clinical impact of this finding needs further investigation.
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Affiliation(s)
- Nicoline S. Arentoft
- Department of Infectious Diseases, Copenhagen University Hospital - Rigshospitalet, Copenhagen, Denmark
| | - Annette D. Fialla
- Department of Gastroenterology, Odense University Hospital, Odense, Denmark
| | - Paul S. Krohn
- Department of Surgery and Transplantation, Copenhagen University Hospital – Rigshospitalet, Copenhagen, Denmark
| | - Magda T. Patursson
- Department of Infectious Diseases, Copenhagen University Hospital - Rigshospitalet, Copenhagen, Denmark
| | - Rebekka F. Thudium
- Department of Infectious Diseases, Copenhagen University Hospital - Rigshospitalet, Copenhagen, Denmark
| | - Moises A. Suarez-Zdunek
- Department of Infectious Diseases, Copenhagen University Hospital - Rigshospitalet, Copenhagen, Denmark
| | - Julie Høgh
- Department of Infectious Diseases, Copenhagen University Hospital - Rigshospitalet, Copenhagen, Denmark
| | - Emilie H. E. Lauridsen
- Department of Hepatology and Gastroenterology, Aarhus University Hospital, Aarhus, Denmark
| | - Jesper B. Hansen
- Department of Gastroenterology, Aalborg University Hospital, Aalborg, Denmark
| | - Jens-Ulrik S. Jensen
- Department of Respiratory Medicine, Copenhagen University Hospital - Herlev and Gentofte, Gentofte, Denmark
| | - Michael Perch
- Department of Cardiology, Heart and Lung Transplant Unit, Copenhagen University Hospital – Rigshospitalet, Copenhagen, Denmark
- Department of Clinical Medicine, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Dina L. Møller
- Department of Infectious Diseases, Copenhagen University Hospital - Rigshospitalet, Copenhagen, Denmark
| | - Hans-Christian Pommergaard
- Department of Surgery and Transplantation, Copenhagen University Hospital – Rigshospitalet, Copenhagen, Denmark
- Department of Clinical Medicine, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Niels K. Aagaard
- Department of Hepatology and Gastroenterology, Aarhus University Hospital, Aarhus, Denmark
| | - Jesper R. Davidsen
- South Danish Center for Interstitial Lung Diseases (SCILS), Department of Respiratory Medicine, Odense University Hospital, Odense, Denmark
| | - Peter Lange
- Department of Respiratory Medicine, Copenhagen University Hospital - Herlev and Gentofte, Gentofte, Denmark
- Department of Clinical Medicine, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
- The Copenhagen General Population Study, Department of Clinical Biochemistry, Copenhagen University Hospital - Herlev and Gentofte, Herlev, Denmark
| | - Yunus Çolak
- Department of Respiratory Medicine, Copenhagen University Hospital - Herlev and Gentofte, Gentofte, Denmark
- Department of Clinical Medicine, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
- The Copenhagen General Population Study, Department of Clinical Biochemistry, Copenhagen University Hospital - Herlev and Gentofte, Herlev, Denmark
| | - Shoaib Afzal
- Department of Clinical Medicine, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
- The Copenhagen General Population Study, Department of Clinical Biochemistry, Copenhagen University Hospital - Herlev and Gentofte, Herlev, Denmark
| | - Børge G. Nordestgaard
- Department of Clinical Medicine, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
- The Copenhagen General Population Study, Department of Clinical Biochemistry, Copenhagen University Hospital - Herlev and Gentofte, Herlev, Denmark
| | - Allan Rasmussen
- Department of Surgery and Transplantation, Copenhagen University Hospital – Rigshospitalet, Copenhagen, Denmark
| | - Susanne D. Nielsen
- Department of Infectious Diseases, Copenhagen University Hospital - Rigshospitalet, Copenhagen, Denmark
- Department of Clinical Medicine, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
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Riemenschneider KA, Lund H, Pommergaard HC. No evidence for fixation of mesh in laparoscopic transabdominal preperitoneal (TAPP) inguinal hernia repair: a systematic review and meta-analysis of randomized controlled trials. Surg Endosc 2023; 37:8291-8300. [PMID: 37674053 PMCID: PMC10615908 DOI: 10.1007/s00464-023-10237-0] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2022] [Accepted: 06/13/2023] [Indexed: 09/08/2023]
Abstract
OBJECTIVE To investigate the differences in hernia recurrence and chronic postoperative inguinal pain (CPIP) in randomized, controlled trials comparing fixation and non-fixation of the mesh in laparoscopic transabdominal preperitoneal (TAPP) inguinal hernia repair. METHODS A multi-database systematic search was conducted for randomized, controlled trials comparing fixation versus non-fixation of the mesh in TAPP inguinal hernia repair. All eligible papers were assessed for risk of bias using the revised Cochrane risk of bias tool for randomized trials (RoB 2.0). Quality of evidence was evaluated using the GRADE system. Meta-analyses were performed regarding recurrence and CPIP using RevMan. RESULTS Seven prospective, randomized controlled trials were included. Laparoscopic TAPP inguinal hernia repair was performed in 1732 patients with 737 procedures performed without fixation and 995 procedures with fixation of the mesh. Despite all trials being RCTs, the trials were limited by substantial bias and the quality of evidence was low regarding hernia recurrence and very low regarding CPIP. Pooled estimates from meta-analyses were an OR of 2.80 (95% CI 0.61-12.77) for hernia recurrence and a mean difference in visual analogue scale (VAS) of 0.17 (95% CI 0.90-1.24) for CPIP, respectively. CONCLUSION The current evidence is very uncertain and mesh fixation may have little to no effect regarding hernia recurrence and chronic postoperative inguinal pain in patients operated with TAPP inguinal hernia repair.
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Affiliation(s)
- K A Riemenschneider
- Department of Surgery and Transplantation, Rigshospitalet, University of Copenhagen, Inge Lehmanns Vej 7, 2100, Copenhagen, Denmark.
- Department of Surgery, Nordsjaellands Hospital, Dyrehavevej 29, 3400, Hilleroed, Denmark.
| | - H Lund
- Department of Surgery, Nordsjaellands Hospital, Dyrehavevej 29, 3400, Hilleroed, Denmark
| | - H C Pommergaard
- Department of Surgery and Transplantation, Rigshospitalet, University of Copenhagen, Inge Lehmanns Vej 7, 2100, Copenhagen, Denmark
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3
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Pommergaard HC. Prognostic biomarkers in and selection of surgical patients with hepatocellular carcinoma. APMIS 2023; 131 Suppl 146:1-39. [PMID: 37186326 DOI: 10.1111/apm.13309] [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: 05/17/2023]
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4
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Riis TH, Møller DL, Høgh J, Knudsen AD, Rostved AA, Akdag D, Kirkby N, Lassen U, Rasmussen A, Hillingsø JG, Pommergaard HC. Characteristics of de novo cancer in liver transplant recipients. APMIS 2023; 131:135-141. [PMID: 36680559 DOI: 10.1111/apm.13296] [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] [Received: 12/01/2022] [Accepted: 01/18/2023] [Indexed: 01/22/2023]
Abstract
Liver transplant recipients receive immunosuppressive treatment to avoid organ rejection, increasing the risk of developing de novo cancer after transplantation. We investigated the cumulative incidence of de novo cancer in a cohort of Danish liver transplant recipients. The study was a retrospective cohort study of adult liver transplant recipients transplanted at Rigshospitalet, Copenhagen, Denmark, between January 1, 2010, and December 31, 2019. De novo cancer was defined as cancer arising at least 30 days after liver transplantation, excluding relapses from prior cancers and donor-derived cancers. We determined the incidence of de novo cancer in the cohort using the Aalen-Johansen estimator, with death and retransplantation as competing risks. We included 389 liver transplant recipients and identified 47 recipients (12%) with de novo cancer after liver transplantation, including 25 recipients with non-melanoma skin cancers. The cumulative incidences at 5 years after liver transplantation for all cancers and non-skin cancers were 10.7% and 4.9%, respectively. De novo cancer after liver transplantation is relatively common, with the majority being non-melanoma skin cancer. Future studies of sufficient size are needed to identify risk factors for de novo cancer after liver transplantation.
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Affiliation(s)
- Tine Holm Riis
- Department of Surgery and Transplantation, Centre for Cancer and Organ Diseases, Rigshospitalet, University of Copenhagen, Copenhagen, Denmark.,Viro-immunology Research Unit, Department of Infectious Diseases, Rigshospitalet, University of Copenhagen, Copenhagen, Denmark
| | - Dina Leth Møller
- Viro-immunology Research Unit, Department of Infectious Diseases, Rigshospitalet, University of Copenhagen, Copenhagen, Denmark
| | - Julie Høgh
- Viro-immunology Research Unit, Department of Infectious Diseases, Rigshospitalet, University of Copenhagen, Copenhagen, Denmark
| | - Andreas Dehlbaek Knudsen
- Viro-immunology Research Unit, Department of Infectious Diseases, Rigshospitalet, University of Copenhagen, Copenhagen, Denmark
| | - Andreas Arendtsen Rostved
- Department of Surgery and Transplantation, Centre for Cancer and Organ Diseases, Rigshospitalet, University of Copenhagen, Copenhagen, Denmark
| | - Delal Akdag
- Department of Surgery and Transplantation, Centre for Cancer and Organ Diseases, Rigshospitalet, University of Copenhagen, Copenhagen, Denmark.,Viro-immunology Research Unit, Department of Infectious Diseases, Rigshospitalet, University of Copenhagen, Copenhagen, Denmark
| | - Nikolai Kirkby
- Department of Clinical Microbiology, Rigshospitalet, University of Copenhagen, Copenhagen, Denmark
| | - Ulrik Lassen
- Department of Oncology, Rigshospitalet, University of Copenhagen, Copenhagen, Denmark
| | - Allan Rasmussen
- Department of Surgery and Transplantation, Centre for Cancer and Organ Diseases, Rigshospitalet, University of Copenhagen, Copenhagen, Denmark
| | - Jens G Hillingsø
- Department of Surgery and Transplantation, Centre for Cancer and Organ Diseases, Rigshospitalet, University of Copenhagen, Copenhagen, Denmark
| | - Hans-Christian Pommergaard
- Department of Surgery and Transplantation, Centre for Cancer and Organ Diseases, Rigshospitalet, University of Copenhagen, Copenhagen, Denmark
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Klubien J, Rosenberg J, Skjoldbye BO, Lorentzen T, Nolsøe CP, Pommergaard HC. Ablation therapy for patients with colorectal liver metastases with and without extrahepatic metastases: evaluation of long-term outcomes and prognostic factors. Ultrasonography 2023. [DOI: 10.14366/usg.22208] [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: 03/30/2023] Open
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Holmager P, Langer SW, Kjaer A, Ringholm L, Garbyal RS, Pommergaard HC, Hansen CP, Federspiel B, Andreassen M, Knigge U. Surgery in Patients with Gastro-Entero-Pancreatic Neuroendocrine Carcinomas, Neuroendocrine Tumors G3 and High Grade Mixed Neuroendocrine-Non-Neuroendocrine Neoplasms. Curr Treat Options Oncol 2022; 23:806-817. [PMID: 35362798 DOI: 10.1007/s11864-022-00969-x] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [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: 02/16/2022] [Indexed: 12/19/2022]
Abstract
OPINION STATEMENT In the 2019 WHO guidelines, the classification of gastro-entero-pancreatic neuroendocrine neoplasms (GEP NEN) has changed from one being based on Ki-67 proliferation index alone to one that also includes tumor differentiation. Consequently, GEP NENs are now classified as well-differentiated neuroendocrine tumor (NET), NET G1 (Ki-67 <3%), NET G2 (Ki-67 3-20%) and NET G3 (Ki-67 >20%), and poorly differentiated neuroendocrine carcinoma (NEC) (Ki-67 >20%). It has been suggested that NET G3 should be treated as NET G2 with respect to surgery, while surgical management of NEC should be expanded from local disease to also include patients with advanced disease where curative surgery is possible. High grade mixed neuroendocrine-non-neuroendocrine neoplasms (MiNEN) have a neuroendocrine and a non-neuroendocrine component mostly with a poor prognosis. All studies evaluating the effect of surgery in NEC and MiNEN are observational and hold a risk of selection bias, which may overestimate the beneficial effect of surgery. Further, only a few studies on the effect of surgery in MiNEN exist. This review aims to summarize the data on the outcome of surgery in patients with GEP NET G3, GEP NEC and high grade MiNEN. The current evidence suggests that patients with NEN G3 and localized disease and NEN G3 patients with metastatic disease where curative surgery can be achieved may benefit from surgery. In patients with MiNEN, it is currently not possible to evaluate on the potential beneficial effect of surgery due to the low number of studies.
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Affiliation(s)
- Pernille Holmager
- ENETS Neuroendocrine Tumor Centre of Excellence, Copenhagen University Hospital-Rigshospitalet, Copenhagen, Denmark. .,Department of Endocrinology and Metabolism, Copenhagen University Hospital-Rigshospitalet, Ole Maaløes Vej 24, DK-2200, Copenhagen, Denmark.
| | - Seppo W Langer
- ENETS Neuroendocrine Tumor Centre of Excellence, Copenhagen University Hospital-Rigshospitalet, Copenhagen, Denmark.,Department of Oncology, Copenhagen University Hospital-Rigshospitalet, Copenhagen, Denmark.,Department of Clinical Medicine, University of Copenhagen, Copenhagen, Denmark
| | - Andreas Kjaer
- ENETS Neuroendocrine Tumor Centre of Excellence, Copenhagen University Hospital-Rigshospitalet, Copenhagen, Denmark.,Department of Clinical Physiology, Nuclear Medicine and PET and Cluster for Molecular Imaging, Copenhagen University Hospital-Rigshospitalet, Copenhagen, Denmark.,Department of Biomedical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Lene Ringholm
- ENETS Neuroendocrine Tumor Centre of Excellence, Copenhagen University Hospital-Rigshospitalet, Copenhagen, Denmark.,Department of Endocrinology and Metabolism, Copenhagen University Hospital-Rigshospitalet, Ole Maaløes Vej 24, DK-2200, Copenhagen, Denmark
| | - Rajendra Singh Garbyal
- ENETS Neuroendocrine Tumor Centre of Excellence, Copenhagen University Hospital-Rigshospitalet, Copenhagen, Denmark.,Department of Pathology, Copenhagen University Hospital-Rigshospitalet, Copenhagen, Denmark
| | - Hans-Christian Pommergaard
- ENETS Neuroendocrine Tumor Centre of Excellence, Copenhagen University Hospital-Rigshospitalet, Copenhagen, Denmark.,Department of Surgery and Transplantation, Copenhagen University Hospital-Rigshospitalet, Copenhagen, Denmark
| | - Carsten Palnæs Hansen
- ENETS Neuroendocrine Tumor Centre of Excellence, Copenhagen University Hospital-Rigshospitalet, Copenhagen, Denmark.,Department of Surgery and Transplantation, Copenhagen University Hospital-Rigshospitalet, Copenhagen, Denmark
| | - Birgitte Federspiel
- ENETS Neuroendocrine Tumor Centre of Excellence, Copenhagen University Hospital-Rigshospitalet, Copenhagen, Denmark.,Department of Biomedical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Mikkel Andreassen
- ENETS Neuroendocrine Tumor Centre of Excellence, Copenhagen University Hospital-Rigshospitalet, Copenhagen, Denmark.,Department of Endocrinology and Metabolism, Copenhagen University Hospital-Rigshospitalet, Ole Maaløes Vej 24, DK-2200, Copenhagen, Denmark.,Department of Clinical Medicine, University of Copenhagen, Copenhagen, Denmark
| | - Ulrich Knigge
- ENETS Neuroendocrine Tumor Centre of Excellence, Copenhagen University Hospital-Rigshospitalet, Copenhagen, Denmark.,Department of Endocrinology and Metabolism, Copenhagen University Hospital-Rigshospitalet, Ole Maaløes Vej 24, DK-2200, Copenhagen, Denmark.,Department of Surgery and Transplantation, Copenhagen University Hospital-Rigshospitalet, Copenhagen, Denmark
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7
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Pommergaard HC, Rasmussen A, Hillingsø J, Kugler JM. Aldehyde dehydrogenase expression may be a prognostic biomarker and associated with liver cirrhosis in patients resected for hepatocellular carcinoma. Surg Oncol 2021; 40:101677. [PMID: 34896911 DOI: 10.1016/j.suronc.2021.101677] [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] [Received: 08/12/2021] [Revised: 10/27/2021] [Accepted: 11/18/2021] [Indexed: 11/29/2022]
Abstract
BACKGROUND Several members of the aldehyde dehydrogenase (ALDH) isoenzyme family have been suggested as prognostic biomarkers in patients with hepatocellular carcinoma (HCC). The aim of the study was to evaluate overall ALDH family member expression by RNA sequencing and hierarchical clustering in tumor and adjacent liver tissue to predict survival and evaluate correlation with liver cirrhosis in patients undergoing liver resection for HCC. METHODS We included patients having undergone liver resection for HCC between May 2014 and January 2018 at a tertiary referral university hospital (Copenhagen University Hospital, Rigshospitalet, Denmark). ALDH family member expression was evaluated by RNA sequencing of tumor and non-tumor liver tissue. Hierarchical clustering of ALDH genes was used to identify patient groups and correlations were established with overall survival, recurrence and histological features. RESULTS Fifty-two patients were included with 88.5% males, 84.6% with only one HCC and 73.1% with a non-cirrhotic background liver. Median follow-up was 45.7 months. Patients in one cluster defined by its ALDH expression in the tumor tissue showed significantly worse overall survival (log-rank p = 0.015), also when adjusted for age, cirrhosis, microvascular invasion, resection margins and tumor number (hazard ratio 4.2, 95% confidence interval (CI) 1.5-11.9, p = 0.007). When evaluated individually, the isoenzyme ALDH1L1 may be of particular importance. Several clusters in non-tumor tissue were correlated with cirrhosis. Especially one cluster had a high discriminative ability (area under receiver operating characteristic curve of 0.839) and remained significantly associated with cirrhosis when corrected for age, microvascular invasion, resection margins and tumor number (odds ratio 44.2, 95% CI 5.5-352.0, p < 0.001). The combination of ALDH and a previously identified candidate biomarker (expression signature of the transcriptional targets of the peroxisome proliferator-activated receptors (PPARs)) may add additional prognostic value. CONCLUSION The expression of ALDH family members in HCC was correlated with overall survival. Moreover, ALDH expression in non-tumor liver tissue was correlated with cirrhosis. Members of the ALDH family of enzymes may serve as a prognostic biomarker as well as potential targets for systemic treatment.
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Affiliation(s)
- Hans-Christian Pommergaard
- Department of Surgery and Transplantation, Rigshospitalet, Copenhagen University Hospital, Department of Clinical Medicine, Inge Lehmannsvej 7, 2100, Copenhagen, Denmark.
| | - Allan Rasmussen
- Department of Surgery and Transplantation, Rigshospitalet, Copenhagen University Hospital, Department of Clinical Medicine, Inge Lehmannsvej 7, 2100, Copenhagen, Denmark
| | - Jens Hillingsø
- Department of Surgery and Transplantation, Rigshospitalet, Copenhagen University Hospital, Department of Clinical Medicine, Inge Lehmannsvej 7, 2100, Copenhagen, Denmark
| | - Jan-Michael Kugler
- Institute for Molecular and Cellular Medicine, University of Copenhagen, Panum Institute, Blegdamsvej 3, 2200, Copenhagen, Denmark.
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8
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Egeland C, Rostved AA, Schultz NA, Pommergaard HC, Daugaard TR, Thøfner LB, Rasmussen A, Hillingsø JG. Morbidity and mortality after liver surgery for colorectal liver metastases: a cohort study in a high-volume fast-track programme. BMC Surg 2021; 21:312. [PMID: 34261457 PMCID: PMC8278677 DOI: 10.1186/s12893-021-01301-4] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2020] [Accepted: 06/28/2021] [Indexed: 12/15/2022] Open
Abstract
BACKGROUND For colorectal liver metastases, surgery is a high-risk procedure due to perioperative morbidity. The objective was to assess severity of complications after fast-track liver surgery for colorectal liver metastases and their impact on morbidity and mortality. METHODS All patients were treated according to the same fast-track programme. Complications were graded according to the Clavien-Dindo classification for patients undergoing surgery from 2013 to 2015. Correlation between complications and length of stay was analysed by multivariate linear regression. RESULTS 564 patient cases were included of which three patients died within 3 months (0.53%, 95% CI: 0.17-1.64%). Complications were common with Grade ≤ 2 in 167 patients (30%) and ≥ Grade 3a in 93 (16%). Patients without complications had a mean length of stay of 4.1 days, which increased with complications: 1.4 days (95% CI: 1.3-1.5) for Grade 2, 1.7 days (1.5-2.0) for Grade 3a, 2.3 days (1.7-3.0) for Grade 3b, 2.6 days (1.6-4.2) for Grade 4a, and 2.9 days (2.8-3.1) for Grade 4b. Following were associated with increased length of stay: complication severity grade, liver insufficiency, ascites, biliary, cardiopulmonary, and infectious complications. CONCLUSIONS Complications after liver surgery for colorectal liver metastases, in a fast track setting, were associated with low mortality, and even severe complications only prolonged length of stay to a minor degree.
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Affiliation(s)
- Charlotte Egeland
- Department of Surgical Gastroenterology and Transplantation, Rigshospitalet, University of Copenhagen, 2100, Blegdamsvej, Denmark
| | - Andreas Arendtsen Rostved
- Department of Surgical Gastroenterology and Transplantation, Rigshospitalet, University of Copenhagen, 2100, Blegdamsvej, Denmark.
| | - Nicolai Aagaard Schultz
- Department of Surgical Gastroenterology and Transplantation, Rigshospitalet, University of Copenhagen, 2100, Blegdamsvej, Denmark
| | - Hans-Christian Pommergaard
- Department of Surgical Gastroenterology and Transplantation, Rigshospitalet, University of Copenhagen, 2100, Blegdamsvej, Denmark
| | - Thomas Røjkjær Daugaard
- Department of Surgical Gastroenterology and Transplantation, Rigshospitalet, University of Copenhagen, 2100, Blegdamsvej, Denmark
| | - Line Buch Thøfner
- Department of Surgical Gastroenterology and Transplantation, Rigshospitalet, University of Copenhagen, 2100, Blegdamsvej, Denmark
| | - Allan Rasmussen
- Department of Surgical Gastroenterology and Transplantation, Rigshospitalet, University of Copenhagen, 2100, Blegdamsvej, Denmark
| | - Jens G Hillingsø
- Department of Surgical Gastroenterology and Transplantation, Rigshospitalet, University of Copenhagen, 2100, Blegdamsvej, Denmark
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9
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Pommergaard HC, Nielsen K, Sorbye H, Federspiel B, Tabaksblat EM, Vestermark LW, Janson ET, Hansen CP, Ladekarl M, Garresori H, Hjortland GO, Sundlöv A, Galleberg R, Knigge P, Kjaer A, Langer SW, Knigge U. Surgery of the primary tumour in 201 patients with high-grade gastroenteropancreatic neuroendocrine and mixed neuroendocrine-non-neuroendocrine neoplasms. J Neuroendocrinol 2021; 33:e12967. [PMID: 33769624 DOI: 10.1111/jne.12967] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Revised: 02/18/2021] [Accepted: 03/10/2021] [Indexed: 12/30/2022]
Abstract
The benefit of surgery in high-grade gastroenteropancreatic neuroendocrine neoplasms (GEP NEN) and mixed neuroendocrine-non-neuroendocrine neoplasms (MiNEN) is uncertain. The present study aimed to investigate outcomes after tumour surgery in patients with high-grade (Ki-67 > 20%) GEP NEN or MiNEN stage I-III or stage IV. We analysed data from patients treated in the period 2007-2015 at eight Nordic university hospitals. Overall survival (OS) and progression-free survival (PFS)/disease-free survival (DFS) were analysed by Kaplan-Meier estimates. Prognostic factors were evaluated using Cox regression. We included 201 surgically resected patients, 143 stage I-III and 58 stage IV, with 68% having neuroendocrine carcinoma, 23% MiNEN, 5% neuroendocrine tumour G3 and 4% uncertain NEN G3. Primary tumours were located in colon/rectum (52%), oesophagus/cardia (19%), pancreas (10%), stomach (7%), jejunum/ileum (5%), duodenum (4%), gallbladder (2%) and anal canal (1%). For patients with stage I-III, median DFS was 12 months (95% confidence interval [CI] = 5.5-18.5) and median OS was 32 months (95% CI = 24.0-40.0). For patients with stage I-III and an R0 resection, median DFS was 21 months (95% CI = 4.9-37.1) and median OS was 39 months (95% CI = 25.0-53.0). For patients with stage IV, median PFS/DFS was 4 months (95% CI = 1.9-6.1) and median OS was 11 months (95% CI = 4.8-17.2). For patients with stage IV and an R0 resection, median DFS was 6 months (95% CI = 0-16.4) and median OS was 32 months (95% CI = 25.5-38.5). Performance status > 1 and colorectal primary were associated with poor prognosis. There was no difference in survival between patients with high-grade GEP NEN and MiNEN. Surgery of the primary tumour in patients with loco-regional high-grade GEP NEN or MiNEN led to good long-term results and should be considered if an R0 resection is considered achievable. Highly selected patients with stage IV disease may also benefit from surgery.
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Affiliation(s)
- Hans-Christian Pommergaard
- ENETS Neuroendocrine Tumor Centre of Excellence, Copenhagen University Hospital, Rigshospitalet, Copenhagen, Denmark
- Department of Surgery and Transplantation, Copenhagen University Hospital, Rigshospitalet, Copenhagen, Denmark
| | - Kirstine Nielsen
- ENETS Neuroendocrine Tumor Centre of Excellence, Copenhagen University Hospital, Rigshospitalet, Copenhagen, Denmark
- Department of Surgery and Transplantation, Copenhagen University Hospital, Rigshospitalet, Copenhagen, Denmark
- Department of Endocrinology, Copenhagen University Hospital, Rigshospitalet, Copenhagen, Denmark
| | - Halfdan Sorbye
- Department of Oncology, Haukeland University Hospital, Bergen, Norway
- Department of Clinical Science, University of Bergen, Bergen, Norway
| | - Birgitte Federspiel
- ENETS Neuroendocrine Tumor Centre of Excellence, Copenhagen University Hospital, Rigshospitalet, Copenhagen, Denmark
- Department of Pathology, Copenhagen University Hospital, Rigshospitalet, Copenhagen, Denmark
| | - Elizaveta M Tabaksblat
- ENETS Neuroendocrine Tumor Centre of Excellence, Aarhus University Hospital, Aarhus, Denmark
- Department of Oncology, Aarhus University Hospital, Aarhus, Denmark
| | | | - Eva T Janson
- ENETS Neuroendocrine Tumor Centre of Excellence, Uppsala University Hospital, Uppsala, Sweden
- Department of Medical Sciences, Endocrine Oncology, Uppsala University, Uppsala, Sweden
| | - Carsten P Hansen
- ENETS Neuroendocrine Tumor Centre of Excellence, Copenhagen University Hospital, Rigshospitalet, Copenhagen, Denmark
- Department of Surgery and Transplantation, Copenhagen University Hospital, Rigshospitalet, Copenhagen, Denmark
| | - Morten Ladekarl
- ENETS Neuroendocrine Tumor Centre of Excellence, Aarhus University Hospital, Aarhus, Denmark
- Department of Oncology, Aarhus University Hospital, Aarhus, Denmark
- Department of Oncology, Clinical Cancer Research Center, Aalborg University Hospital, Aalborg, Denmark
| | - Herish Garresori
- Department of Oncology, Stavanger University Hospital, Stavanger, Norway
| | - Geir O Hjortland
- ENETS Neuroendocrine Tumor Centre of Excellence, Oslo University Hospital, Oslo, Norway
- Department of Oncology, Oslo University Hospital, Oslo, Norway
| | - Anna Sundlöv
- Department of Oncology, Skåne University Hospital, Lund, Sweden
| | - Renate Galleberg
- Department of Oncology, Haukeland University Hospital, Bergen, Norway
| | - Pauline Knigge
- ENETS Neuroendocrine Tumor Centre of Excellence, Copenhagen University Hospital, Rigshospitalet, Copenhagen, Denmark
- Department of Endocrinology, Copenhagen University Hospital, Rigshospitalet, Copenhagen, Denmark
- Department of Clinical Physiology, Nuclear Medicine & PET and Cluster for Molecular Imaging, University of Copenhagen and Copenhagen University Hospital, Rigshospitalet, Copenhagen, Denmark
| | - Andreas Kjaer
- ENETS Neuroendocrine Tumor Centre of Excellence, Copenhagen University Hospital, Rigshospitalet, Copenhagen, Denmark
- Department of Clinical Physiology, Nuclear Medicine & PET and Cluster for Molecular Imaging, University of Copenhagen and Copenhagen University Hospital, Rigshospitalet, Copenhagen, Denmark
| | - Seppo W Langer
- ENETS Neuroendocrine Tumor Centre of Excellence, Copenhagen University Hospital, Rigshospitalet, Copenhagen, Denmark
- Department of Oncology, Copenhagen University Hospital, Rigshospitalet, Copenhagen, Denmark
| | - Ulrich Knigge
- ENETS Neuroendocrine Tumor Centre of Excellence, Copenhagen University Hospital, Rigshospitalet, Copenhagen, Denmark
- Department of Surgery and Transplantation, Copenhagen University Hospital, Rigshospitalet, Copenhagen, Denmark
- Department of Endocrinology, Copenhagen University Hospital, Rigshospitalet, Copenhagen, Denmark
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Pommergaard HC, Rostved AA, Adam R, Rasmussen A, Salizzoni M, Bravo MAG, Cherqui D, De Simone P, Houssel-Debry P, Mazzaferro V, Soubrane O, García-Valdecasas JC, Prous JF, Pinna AD, O'Grady J, Karam V, Duvoux C, Thygesen LC. Mortality after Transplantation for Hepatocellular Carcinoma: A Study from the European Liver Transplant Registry. Liver Cancer 2020; 9:455-467. [PMID: 32999871 PMCID: PMC7506266 DOI: 10.1159/000507397] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [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] [Received: 11/20/2019] [Accepted: 02/17/2020] [Indexed: 02/04/2023] Open
Abstract
BACKGROUND AND AIMS Prognosis after liver transplantation differs between hepatocellular carcinoma (HCC) arising in cirrhotic and non-cirrhotic livers and aetiology is poorly understood. The aim was to investigate differences in mortality after liver transplantation between these patients. METHODS We included patients from the European Liver Transplant Registry transplanted due to HCC from 1990 to November 2016 and compared cirrhotic and non-cirrhotic patients using propensity score (PS) calibration of Cox regression estimates to adjust for unmeasured confounding. RESULTS We included 22,787 patients, of whom 96.5% had cirrhosis. In the unadjusted analysis, non-cirrhotic patients had an increased risk of overall mortality with a hazard ratio (HR) of 1.37 (95% confidence interval [CI] 1.23-1.52). However, the HR approached unity with increasing adjustment and was 1.11 (95% CI 0.99-1.25) when adjusted for unmeasured confounding. Unadjusted, non-cirrhotic patients had an increased risk of HCC-specific mortality (HR 2.62, 95% CI 2.21-3.12). After adjustment for unmeasured confounding, the risk remained significantly increased (HR 1.62, 95% CI 1.31-2.00). CONCLUSIONS Using PS calibration, we showed that HCC in non-cirrhotic liver has similar overall mortality, but higher HCC-specific mortality. This may be a result of a more aggressive cancer form in the non-cirrhotic liver as higher mortality could not be explained by tumour characteristics or other prognostic variables.
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Affiliation(s)
- Hans-Christian Pommergaard
- Department of Surgical Gastroenterology and Transplantation, Rigshospitalet, University of Copenhagen, Copenhagen, Denmark,*Hans-Christian Pommergaard, Department of Surgical Gastroenterology and Transplantation, Rigshospitalet, University of Copenhagen, Blegdamsvej 9, DK–2100 Copenhagen (Denmark),
| | - Andreas Arendtsen Rostved
- Department of Surgical Gastroenterology and Transplantation, Rigshospitalet, University of Copenhagen, Copenhagen, Denmark
| | - René Adam
- Department of Hepatobiliary Surgery, Cancer, and Transplantation, AP-HP, Hôpital Universitaire Paul Brousse, Inserm U935, Université Paris-Sud, Villejuif, France
| | - Allan Rasmussen
- Department of Hepatobiliary Surgery, Cancer, and Transplantation, AP-HP, Hôpital Universitaire Paul Brousse, Inserm U935, Université Paris-Sud, Villejuif, France
| | - Mauro Salizzoni
- Liver Transplant Centre and General Surgery, A.O.U. Città della Salute e della Scienza di Torino, Molinette Hospital, Turin, Italy
| | | | - Daniel Cherqui
- Department of Hepatobiliary Surgery, Cancer, and Transplantation, AP-HP, Hôpital Universitaire Paul Brousse, Inserm U935, Université Paris-Sud, Villejuif, France
| | - Paolo De Simone
- Hepatobiliary Surgery and Liver Transplantation Unit, University of Pisa Medical School Hospital, Pisa, Italy
| | - Pauline Houssel-Debry
- Service de Chirurgie Hépatobiliaire et Digestive, Hôpital Pontchaillou, Centre Hospitalier Université de Rennes 1, and INSERM, UMR991, Foie, Métabolisme et Cancer, Université de Rennes 1, Rennes, France
| | - Vincenzo Mazzaferro
- University of Milan and Division of Gastrointestinal Surgery and Liver Transplantation, Istituto Nazionale Tumori, Fondazione IRCCS, Milan, Italy
| | - Olivier Soubrane
- Department of HPB Surgery and Liver Transplant, Beaujon Hospital, Clichy, University Denis Diderot, Paris, France
| | | | - Joan Fabregat Prous
- Unitat de Cirurgia Hepato-bilio-pancreàtica, Hospital Universitari de Bellvitge, Barcelona, Spain
| | - Antonio D. Pinna
- General Surgery and Transplant Division, S. Orsola Hospital, University of Bologna, Bologna, Italy
| | - John O'Grady
- Institute of Liver Studies, King's College Hospital, London, United Kingdom
| | - Vincent Karam
- Department of Hepatobiliary Surgery, Cancer, and Transplantation, AP-HP, Hôpital Universitaire Paul Brousse, Inserm U935, Université Paris-Sud, Villejuif, France
| | - Christophe Duvoux
- Department of Hepatology and Liver Transplant Unit, Henri Mondor Hospital, Paris Est University, Créteil, France
| | - Lau Caspar Thygesen
- National Institute of Public Health, University of Southern Denmark, Copenhagen, Denmark
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11
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Pommergaard HC, Preuss Hasselby J, Linno Willemoe G, Ralbovska A, Arendtsen Rostved A, Rasmussen A, Aagaard Schultz N, Hillingsø J, Nørgaard Larsen P, Kugler JM. Peroxisome proliferator-activated receptor activity correlates with poor survival in patients resected for hepatocellular carcinoma. J Hepatobiliary Pancreat Sci 2020; 28:327-335. [PMID: 32359017 DOI: 10.1002/jhbp.745] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/16/2020] [Revised: 04/02/2020] [Accepted: 04/20/2020] [Indexed: 12/28/2022]
Abstract
BACKGROUND/PURPOSE Few clinically useful biomarkers are known to predict prognosis in patients with hepatocellular carcinoma (HCC). The aim of this study was to investigate the correlation between PPAR activity and ALDH7A1 expression and their prognostic significance using RNA sequencing in patients undergoing liver resection for HCC. METHODS We included patients undergoing liver resection for HCC at a tertiary referral center for hepato-pancreato-biliary surgery between May 2014 and January 2018. PPAR activity and ALDH7A1 expression were evaluated by RNA sequencing and correlated with overall survival, recurrence and histological features. RESULTS We included 52 patients with a median follow-up of 20.9 months, predominantly males (88.5%) with a single tumor (84.6%) in a non-cirrhotic liver (73.1%). Three-year overall survival was 48.6% in patients with a specific PPAR target gene expression profile (cancer cluster 3) compared with 81.7% in controls (P = .04, Log-rank test). This remained significant (odds ratio 14.02, 95% confidence interval 1.92-102.22, P = .009) when adjusted for age, cirrhosis, microvascular invasion, number of tumors and free resection margins. ALDH7A1 expression was not correlated with PPAR or any outcomes. CONCLUSION PPAR activity in a subset of tumor samples was associated with reduced overall survival indicating that PPAR may be a valuable prognostic biomarker.
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Affiliation(s)
- Hans-Christian Pommergaard
- Department of Surgical Gastroenterology and Transplantation, Rigshospitalet, Copenhagen University Hospital, Copenhagen, Denmark
| | - Jane Preuss Hasselby
- Department of Pathology, Rigshospitalet, Copenhagen University Hospital, Copenhagen, Denmark
| | - Gro Linno Willemoe
- Department of Pathology, Rigshospitalet, Copenhagen University Hospital, Copenhagen, Denmark
| | - Adela Ralbovska
- Institute for Molecular and Cellular Medicine, University of Copenhagen, Panum Institute, Copenhagen, Denmark
| | - Andreas Arendtsen Rostved
- Department of Surgical Gastroenterology and Transplantation, Rigshospitalet, Copenhagen University Hospital, Copenhagen, Denmark
| | - Allan Rasmussen
- Department of Surgical Gastroenterology and Transplantation, Rigshospitalet, Copenhagen University Hospital, Copenhagen, Denmark
| | - Nicolai Aagaard Schultz
- Department of Surgical Gastroenterology and Transplantation, Rigshospitalet, Copenhagen University Hospital, Copenhagen, Denmark
| | - Jens Hillingsø
- Department of Surgical Gastroenterology and Transplantation, Rigshospitalet, Copenhagen University Hospital, Copenhagen, Denmark
| | - Peter Nørgaard Larsen
- Department of Surgical Gastroenterology and Transplantation, Rigshospitalet, Copenhagen University Hospital, Copenhagen, Denmark
| | - Jan-Michael Kugler
- Institute for Molecular and Cellular Medicine, University of Copenhagen, Panum Institute, Copenhagen, Denmark
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12
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Öberg S, Fonnes S, Andresen K, Pommergaard HC, Rosenberg J. No effect of Turkish bath (Hammam) on sunburn after exposure to natural ultraviolet radiation: A randomized controlled blinded trial. J Cosmet Dermatol 2019; 18:1372-1377. [PMID: 30588730 DOI: 10.1111/jocd.12829] [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] [Received: 08/15/2018] [Revised: 10/17/2018] [Accepted: 10/29/2018] [Indexed: 01/24/2023]
Abstract
BACKGROUND Scrubbing of the skin during Hammam, a Turkish spa treatment, removes cells from the ultraviolet radiation absorbing stratum corneum. AIM The aim of this study was to assess if skin is more susceptible to sunburn after a Hammam treatment. METHODS In this randomized controlled trial with a paired design, healthy adult participants with skin types 1-3 were randomized to receive Hammam treatment on one side of the back while the other side was used as control. Participants had 30 minutes of sun exposure on their backs. Erythema and pain were assessed before and 1, 4, 8, and 24 hours after sun exposure. Erythema was assessed by a visual scale and by using chromatography on high-resolution photos. Pain was assessed with the Visual Analogue Scale (VAS). The primary outcome was the difference in chromatography-assessed erythema from baseline to the 24-hour assessment, compared between the Hammam- and the control side. Secondary outcomes were differences in pain and visually assessed erythema. RESULTS Twelve participants were included with complete follow-up. Eight participants had type-3 skin and four had type-2 skin. There was no difference between the Hammam and the control side for any of the outcomes. Even though erythema assessed by chromatography was slightly higher for the Hammam side, the difference was insignificant. CONCLUSION Hammam treatment did not increase sunburn, measured by UV-induced skin erythema and pain, compared with untreated skin following 30 minutes of sun exposure.
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Affiliation(s)
- Stina Öberg
- Center for Perioperative Optimization, Department of Surgery, Herlev Hospital, University of Copenhagen, Copenhagen, Denmark
| | - Siv Fonnes
- Center for Perioperative Optimization, Department of Surgery, Herlev Hospital, University of Copenhagen, Copenhagen, Denmark
| | - Kristoffer Andresen
- Center for Perioperative Optimization, Department of Surgery, Herlev Hospital, University of Copenhagen, Copenhagen, Denmark
| | | | - Jacob Rosenberg
- Center for Perioperative Optimization, Department of Surgery, Herlev Hospital, University of Copenhagen, Copenhagen, Denmark
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13
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Karstensen JG, Burisch J, Pommergaard HC, Aalling L, Højen H, Jespersen N, Schmidt PN, Bülow S. Colorectal Cancer in Individuals With Familial Adenomatous Polyposis, Based on Analysis of the Danish Polyposis Registry. Clin Gastroenterol Hepatol 2019; 17:2294-2300.e1. [PMID: 30743005 DOI: 10.1016/j.cgh.2019.02.008] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [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] [Received: 12/14/2018] [Revised: 01/10/2019] [Accepted: 02/03/2019] [Indexed: 02/07/2023]
Abstract
BACKGROUND & AIMS Familial adenomatous polyposis (FAP) is an autosomal dominant disorder that increases risk for colorectal cancer (CRC). We assessed changes in the incidence and prevalence of CRC, and survival times, of patients with FAP participating in the Danish follow-up study. METHODS We collected data from the Danish Polyposis Registry, a nationwide, complete registry of patients with FAP that includes clinical information, surgical procedures, follow-up findings, and pathology reports. We compared data between the periods of 1990-1999 and 2000-2017. In 2017, the registry contained 226 families with 721 individuals with FAP. Probands were defined as patients diagnosed based on bowel symptoms, without any knowledge of hereditary bowel disease. Call-up patients were defined as those found to have FAP during screening and due to a diagnosis of FAP in first-degree relatives. RESULTS Although the mean incidence rate of FAP was stable from 1990-1999 (0.19/100,000/year) to 2000-2017 (0.32/100,000/year) (P = .91), the point prevalence increased from 4.86/100,000 in 1999 to 6.11/100,000 by the end of 2017 (P = .005). During 2000-2017, 25 of 72,218 CRC cases were associated with FAP (0.03%)-this was a significant decrease from 1990-1999 (26/30,005 cases; 0.09%) (P = .001). The risk of CRC was significantly higher for probands (n = 191; 61.6%) than call-up cases (n = 5; 1.9%) (P < .001). All CRCs in call-up patients were detected at the diagnosis of FAP (no cases were identified in the follow-up program). The median life expectancy for call-up patients was 72.0 years (95% CI, 63.3-80.7), compared to 55.0 years for probands (95% CI, 51.2-58.8) (P < .001). Therefore, the tracing and follow-up program increased life expectancy by 17.0 years for first-degree family members. CONCLUSION The Danish Polyposis Registry enables close monitoring of patients with FAP, reducing risk of CRC and prolonging life.
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Affiliation(s)
- John Gásdal Karstensen
- Danish Polyposis Registry, Gastro Unit, Copenhagen University Hospital Hvidovre, Hvidovre, Denmark.
| | - Johan Burisch
- Danish Polyposis Registry, Gastro Unit, Copenhagen University Hospital Hvidovre, Hvidovre, Denmark
| | | | - Lisa Aalling
- Danish Polyposis Registry, Gastro Unit, Copenhagen University Hospital Hvidovre, Hvidovre, Denmark
| | - Helle Højen
- Danish Polyposis Registry, Gastro Unit, Copenhagen University Hospital Hvidovre, Hvidovre, Denmark
| | - Niels Jespersen
- Danish Polyposis Registry, Gastro Unit, Copenhagen University Hospital Hvidovre, Hvidovre, Denmark
| | - Palle Nordblad Schmidt
- Danish Polyposis Registry, Gastro Unit, Copenhagen University Hospital Hvidovre, Hvidovre, Denmark
| | - Steffen Bülow
- Danish Polyposis Registry, Gastro Unit, Copenhagen University Hospital Hvidovre, Hvidovre, Denmark
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14
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Mortensen LQ, Andresen K, Burcharth J, Pommergaard HC, Rosenberg J. Matching Cases and Controls Using SAS® Software. Front Big Data 2019; 2:4. [PMID: 33693327 PMCID: PMC7931898 DOI: 10.3389/fdata.2019.00004] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2018] [Accepted: 04/23/2019] [Indexed: 11/13/2022] Open
Abstract
Matching is frequently used in observational studies, especially in medical research. However, only a small number of articles with matching programs for the SAS software (SAS Institute Inc., Cary, NC, USA) are available, even less are usable for inexperienced users of SAS software. This article presents a matching program for the SAS software and links to an online repository for examples and test data. The program enables matching on several variables and includes in-depth explanation of the expressions used and how to customize the program. The selection of controls is randomized and automated, minimizing the risk of selection bias. Also, the program provides means for the researcher to test for incomplete matching.
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Affiliation(s)
- Laura Quitzau Mortensen
- Center for Perioperative Optimization, Department of Surgery, Herlev Hospital, Herlev, Denmark
| | - Kristoffer Andresen
- Center for Perioperative Optimization, Department of Surgery, Herlev Hospital, Herlev, Denmark
| | - Jakob Burcharth
- Department of Surgery, University Hospital of Zealand, Koege, Denmark
| | | | - Jacob Rosenberg
- Center for Perioperative Optimization, Department of Surgery, Herlev Hospital, Herlev, Denmark
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15
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Pommergaard HC. Liver transplantation for hepatocellular carcinoma: alpha-fetoprotein should be included in selection criteria. Transl Gastroenterol Hepatol 2018; 3:103. [DOI: 10.21037/tgh.2018.12.01] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/13/2018] [Accepted: 11/28/2018] [Indexed: 11/06/2022] Open
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Daugaard TR, Pommergaard HC, Rostved AA, Rasmussen A. Postoperative complications as a predictor for survival after liver transplantation - proposition of a prognostic score. HPB (Oxford) 2018; 20:815-822. [PMID: 29705344 DOI: 10.1016/j.hpb.2018.03.001] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [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] [Received: 08/16/2017] [Revised: 02/14/2018] [Accepted: 03/03/2018] [Indexed: 02/06/2023]
Abstract
BACKGROUND Liver transplantation is major surgery with a high risk of complications. Existing scoring systems for evaluating complications after surgery are not specific for liver transplantation. Nor are they designed to evaluate the relation to recipient survival or graft loss. We wished to uncover the relation between postoperative complications and one-year risk of death or retransplantation, and to develop a prognostic score for complications based on our findings. METHOD The study was a retrospective cohort study including 253 adult liver recipients. Thirty-days postoperative complications were registered using the Clavien-Dindo classification. A prognostic score was developed based on types, severity, and quantity of complications. RESULTS A total of 1113 complications occurred in 233 (92.1%) of the patients. One-year mortality or graft loss was associated with graft, biliary, surgical, systemic, pulmonary, cardiovascular, renal, and infectious complication but not with neurologic or gastrointestinal complications. The developed score was more accurate in predicting the outcome than both the modified Clavien-Dindo score and the Comprehensive Complication Index. CONCLUSION Types, severity, and quantity of different postoperative complications after liver transplantation are not equally important. The proposed score may focus attention on treating or preventing complications with strong relation to recipient mortality or graft loss.
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Affiliation(s)
- Thomas R Daugaard
- Department of Surgical Gastroenterology and Transplantation, Rigshospitalet, Copenhagen University Hospital, Blegdamsvej 9, 2100, Copenhagen, Denmark.
| | - Hans-Christian Pommergaard
- Department of Surgical Gastroenterology and Transplantation, Rigshospitalet, Copenhagen University Hospital, Blegdamsvej 9, 2100, Copenhagen, Denmark
| | - Andreas A Rostved
- Department of Surgical Gastroenterology and Transplantation, Rigshospitalet, Copenhagen University Hospital, Blegdamsvej 9, 2100, Copenhagen, Denmark
| | - Allan Rasmussen
- Department of Surgical Gastroenterology and Transplantation, Rigshospitalet, Copenhagen University Hospital, Blegdamsvej 9, 2100, Copenhagen, Denmark
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17
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Pommergaard HC, Rostved AA, Adam R, Thygesen LC, Salizzoni M, Gómez Bravo MA, Cherqui D, Filipponi F, Boudjema K, Mazzaferro V, Soubrane O, García-Valdecasas JC, Prous JF, Pinna AD, O'Grady J, Karam V, Duvoux C, Rasmussen A. Vascular invasion and survival after liver transplantation for hepatocellular carcinoma: a study from the European Liver Transplant Registry. HPB (Oxford) 2018; 20:768-775. [PMID: 29622402 DOI: 10.1016/j.hpb.2018.03.002] [Citation(s) in RCA: 34] [Impact Index Per Article: 5.7] [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] [Received: 11/16/2017] [Revised: 02/18/2018] [Accepted: 03/03/2018] [Indexed: 12/12/2022]
Abstract
BACKGROUND Studies suggest that vascular invasion may be a superior prognostic marker compared with traditional selection criteria, e.g. Milan criteria. This study aimed to investigate the prognostic value of micro and macrovascular invasion in a large database material. METHODS Patients liver transplanted for HCC and cirrhosis registered in the European Liver Transplant Registry (ELTR) database were included. The association between the Milan criteria, Up-to-seven criteria and vascular invasion with overall survival and HCC specific survival was investigated with univariate and multivariate Cox regression analyses. RESULTS Of 23,124 patients transplanted for HCC, 9324 had cirrhosis and data on explant pathology. Patients without microvascular invasion, regardless of number and size of HCC nodules, had a five-year overall survival of 73.2%, which was comparable with patients inside both Milan and Up-to-seven criteria. Patients without macrovascular invasion had an only marginally reduced survival of 70.7% after five years. Patients outside both Milan and Up-to-seven criteria without micro or macrovascular invasion still had a five-year overall survival of 65.8%. CONCLUSION Vascular invasion as a prognostic indicator remains superior to criteria based on size and number of nodules. With continuously improving imaging studies, microvascular invasion may be used for selecting patients for transplantation in the future.
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Affiliation(s)
- Hans-Christian Pommergaard
- Department of Surgical Gastroenterology and Transplantation, Rigshospitalet, University of Copenhagen, Copenhagen, Denmark.
| | - Andreas A Rostved
- Department of Surgical Gastroenterology and Transplantation, Rigshospitalet, University of Copenhagen, Copenhagen, Denmark
| | - René Adam
- Department of Hepatobiliary Surgery, Cancer and Transplantation, AP-HP, Hôpital Universitaire Paul Brousse, Inserm U 935, Univ Paris-Sud, Villejuif, France
| | - Lau C Thygesen
- National Institute of Public Health, University of Southern Denmark, Copenhagen, Denmark
| | - Mauro Salizzoni
- Liver Transplant Center and General Surgery, A.O.U. Città della Salute e della Scienza di Torino, Molinette Hospital, Turin, Italy
| | - Miguel A Gómez Bravo
- Department of Surgery - Liver Transplant Unit, Hospital Virgen Del Rocio, Sevilla, Spain
| | - Daniel Cherqui
- Department of Hepatobiliary Surgery, Cancer and Transplantation, AP-HP, Hôpital Universitaire Paul Brousse, Inserm U 935, Univ Paris-Sud, Villejuif, France
| | - Franco Filipponi
- Hepatobiliary Surgery and Liver Transplantation Unit, University of Pisa Medical School Hospital, 56124, Pisa, Italy
| | - Karim Boudjema
- Service de Chirurgie Hépatobiliaire et Digestive, Hôpital Pontchaillou, Centre Hospitalier Université de Rennes 1, Rennes, France
| | - Vincenzo Mazzaferro
- University of Milan and Division of Gastrointestinal Surgery and Liver Transplantataion, Istituto Nazionale Tumori, Fondazione IRCCS, Milan, Italy
| | - Olivier Soubrane
- Department of HPB Surgery and Liver Transplant, Beaujon Hospital, Clichy, University Denis Diderot, Paris, France
| | | | - Joan F Prous
- Unitat de Cirurgia Hepato-bilio-pancreàtica, Hospital Universitari de Bellvitge, Barcelona, Spain
| | - Antonio D Pinna
- General Surgery and Transplant Division, S. Orsola Hospital, University of Bologna, Bologna, Italy
| | - John O'Grady
- Institute of Liver Studies, King's College Hospital, London, United Kingdom
| | - Vincent Karam
- Department of Hepatobiliary Surgery, Cancer and Transplantation, AP-HP, Hôpital Universitaire Paul Brousse, Inserm U 935, Univ Paris-Sud, Villejuif, France
| | - Christophe Duvoux
- Department of Hepatology and Liver Transplant Unit, Henri Mondor Hospital, Paris Est University (UPEC), Créteil, France
| | - Allan Rasmussen
- Department of Surgical Gastroenterology and Transplantation, Rigshospitalet, University of Copenhagen, Copenhagen, Denmark
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18
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Hupfeld L, Pommergaard HC, Burcharth J, Rosenberg J. Emergency admissions for complicated colonic diverticulitis are increasing: a nationwide register-based cohort study. Int J Colorectal Dis 2018; 33:879-886. [PMID: 29789871 DOI: 10.1007/s00384-018-3078-7] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 05/02/2018] [Indexed: 02/04/2023]
Abstract
BACKGROUND Acute colonic diverticulitis is common in the Western world representing a growing burden on health care. We aimed to report the factual epidemiological and demographic characteristics in patients with acute diverticulitis in a large nationwide population. METHOD We conducted a population-based cohort study from 2000 to 2012 on the complete Danish population, which included all patients with acute colonic diverticulitis. Data were composed through two national longitudinal registries. The study main outcomes were demographic development regarding hospital admission, age, gender, geographical residency, and seasonal information. RESULTS A total of 101,963 acute hospital contacts were identified from 2000 to 2012, of these 44,160 were due to acute diverticulitis. From 2000 to 2012, overall admission rates for complicated diverticulitis increased significantly with 42.7%. There was a small increase in hospital admissions due to acute diverticulitis, and uncomplicated diverticulitis accounted for 83-88% of all admissions. No significant development was seen in cases of uncomplicated diverticulitis. The majority of patients were older than 50 years (85%) and 60% were women. The male gender dominated in patients younger than 50 years (58%), whereas women dominated above 50 years (63%). Mean age and dominating age group decreased significantly from 2000 to 2012 for both genders. A significantly larger proportion of male patients had complicated diverticulitis than uncomplicated diverticulitis. Most admissions were seen during autumn. CONCLUSION We found that acute colonic diverticulitis has been progressing over the last decade with more severe cases of disease. Our findings underline the need for further research to identify the relevant risk factors and causal circumstances.
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Affiliation(s)
- Line Hupfeld
- Department of Surgery, Herlev Hospital, University of Copenhagen, Herlev Ringvej 75, 2730, Herlev, Denmark.
| | | | - Jakob Burcharth
- Department of Surgery, Zealand University Hospital, University of Copenhagen, Herlev, Denmark
| | - Jacob Rosenberg
- Department of Surgery, Herlev Hospital, University of Copenhagen, Herlev Ringvej 75, 2730, Herlev, Denmark
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19
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Nolsøe CP, Nolsøe AB, Klubien J, Pommergaard HC, Rosenberg J, Meloni MF, Lorentzen T. Use of Ultrasound Contrast Agents in Relation to Percutaneous Interventional Procedures: A Systematic Review and Pictorial Essay. J Ultrasound Med 2018; 37:1305-1324. [PMID: 29230842 DOI: 10.1002/jum.14498] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/02/2017] [Revised: 08/28/2017] [Accepted: 09/08/2017] [Indexed: 06/07/2023]
Abstract
The aim of this article is to provide an inventory of the use of contrast-enhanced ultrasound (CEUS) in relation to percutaneous interventional procedures. The article is structured into a systematic literature review followed by a clinical part relating to percutaneous CEUS-guided procedures. A literature search identified 3109 records. After abstract screening, 55 articles were analyzed and supplemented with pictorial material to explain the techniques. In conclusion, the best-evidenced indications for CEUS-guided interventions are biopsy and ablation of inconspicuous or B-mode-invisible tumors, intraprocedural ablation control and follow-up, as well as percutaneous transhepatic cholangiography and drainage procedures.
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Affiliation(s)
- Christian Pállson Nolsøe
- Ultrasound Section, Division of Surgery, Department of Gastroenterology, Herlev Hospital, and Copenhagen Academy for Medical Education and Simulation, University of Copenhagen, Herlev, Denmark
| | - Alexander Bjørneboe Nolsøe
- Center for Perioperative Optimization, Department of Surgery, Herlev Hospital, and Copenhagen Academy for Medical Education and Simulation, University of Copenhagen, Herlev, Denmark
| | - Jeanett Klubien
- Center for Perioperative Optimization, Department of Surgery, Herlev Hospital, and Copenhagen Academy for Medical Education and Simulation, University of Copenhagen, Herlev, Denmark
| | - Hans-Christian Pommergaard
- Department of Surgical Gastroenterology and Transplantation, Rigshospitalet, University of Copenhagen, Copenhagen, Denmark
| | - Jacob Rosenberg
- Center for Perioperative Optimization, Department of Surgery, Herlev Hospital, and Copenhagen Academy for Medical Education and Simulation, University of Copenhagen, Herlev, Denmark
| | - Maria Franca Meloni
- Interventional Ultrasound Section, Department of Radiology, Institute of Care Igea, Milan, Italy
- University of Wisconsin Hospital and Clinics, Madison, Wisconsin, USA
| | - Torben Lorentzen
- Ultrasound Section, Division of Surgery, Department of Gastroenterology, Herlev Hospital, University of Copenhagen, Herlev, Denmark
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Klubien J, Kohl AP, Nolsøe CP, Rosenberg J, Pommergaard HC. Prognostic factors after ultrasound-guided percutaneous ablation of colorectal liver metastases: A systematic review. Australas J Ultrasound Med 2018; 21:87-95. [PMID: 34760508 DOI: 10.1002/ajum.12088] [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] [Indexed: 11/05/2022] Open
Abstract
Introduction Liver metastases from colorectal cancer are common and ablation therapy is a favourable treatment option for selected patients not suited for surgical resection. This study aimed to systematically review the literature and present prognostic factors associated with survival and local recurrence after percutaneous ultrasound-guided ablation treatment. Materials and methods This review is reported according to the PRISMA. PubMed, Embase and Scopus were searched and records were independently screened by two authors, initially on title and abstract and subsequently on full-text basis. The quality of the studies was assessed using the Newcastle-Ottawa quality assessment scale. Results Of 2.882 records screened, 18 studies were included. The median survival was 23 months. One-year survival was median 95% and 3-year survival was median 58%. Complete ablation response and adjuvant chemotherapy produce considerably improved survival and low local recurrence rate outcomes. Conclusion Percutaneous ultrasound-guided ablation technique for colorectal liver metastases provides impressive survival rates for patients not suited for surgical resection. However, there are some factors related to poorer prognosis, which may be considered when selecting patients.
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Affiliation(s)
- Jeanett Klubien
- Center for Perioperative Optimization Department of Surgery Herlev Hospital Herlev Ringvej 75 2730 Herlev Denmark.,Faculty of Health and Medical Sciences University of Copenhagen Blegdamsvej 3B 2200 København N Denmark
| | - Andreas P Kohl
- Center for Perioperative Optimization Department of Surgery Herlev Hospital Herlev Ringvej 75 2730 Herlev Denmark.,Faculty of Health and Medical Sciences University of Copenhagen Blegdamsvej 3B 2200 København N Denmark
| | - Christian P Nolsøe
- Center for Perioperative Optimization Department of Surgery Herlev Hospital Herlev Ringvej 75 2730 Herlev Denmark.,Faculty of Health and Medical Sciences University of Copenhagen Blegdamsvej 3B 2200 København N Denmark
| | - Jacob Rosenberg
- Center for Perioperative Optimization Department of Surgery Herlev Hospital Herlev Ringvej 75 2730 Herlev Denmark.,Faculty of Health and Medical Sciences University of Copenhagen Blegdamsvej 3B 2200 København N Denmark
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21
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Gregersen R, Andresen K, Burcharth J, Pommergaard HC, Rosenberg J. Long-term mortality and recurrence in patients treated for colonic diverticulitis with abscess formation: a nationwide register-based cohort study. Int J Colorectal Dis 2018; 33:431-440. [PMID: 29511842 DOI: 10.1007/s00384-018-2990-1] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [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] [Accepted: 02/21/2018] [Indexed: 02/04/2023]
Abstract
PURPOSE The study aimed to investigate long-term mortality, recurrence, and death related to recurrence for patients admitted with acute diverticulitis with abscess formation (Hinchey stage Ib-II). METHODS The cohort was identified by linking administrative registers for all Danish citizens in years 2000-2012. Patients were identified from ICD-10 discharge codes and stratified according to treatment (antibiotics, percutaneous abscess drainage, or surgery). RESULTS From 6,641,672 persons, 3148 patients were identified with acute diverticulitis with abscess formation. Survival was comparable between treatment groups with a 1-year survival of 81-83% and a 5-year survival of 66-67% (p = 0.66). Glucocorticoid usage prior to admission increased risk of mortality with hazard ratio 1.64 (95%CI 1.39-1.93), 1.77 (1.20-2.63), and 1.92 (1.07-3.44) for the antibiotics, drainage, and operative treatment group, respectively. Drainage treatment increased risk of recurrence with sub-distribution hazard (SDH) of 1.52 (1.19-1.95) and operative treatment decreased risk with a SDH of 0.55 (0.32-0.93), both compared with antibiotic treatment (p = 0.0001). Recurrence occurred in 23.6% (18.5-30.1%) of patients in the drainage group, 15.5% (13.9-17.3%) in the antibiotics group, and 9.1% (5.1-16.1%) in the operative group. Recurrence-related mortality was 2.0% (0.9-4.4%) for the drainage group, 1.1% (0.7-1.8%) for the antibiotics group, and 0.6% (0.1-4.3%) for the operative group (p = 0.24). Most recurrences and recurrence-related mortality occurred within the first year after primary admission. CONCLUSIONS This study with complete national data revealed a high mortality and recurrence rate after diverticular abscesses. Survival was comparable between treatment groups, but patients treated with drainage had significantly higher risk of recurrence.
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Affiliation(s)
- Rasmus Gregersen
- Centre for Perioperative Optimization, Department of Surgery, Herlev Hospital, Herlev Ringvej 75, DK-2730, Herlev, Denmark. .,Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark.
| | - Kristoffer Andresen
- Centre for Perioperative Optimization, Department of Surgery, Herlev Hospital, Herlev Ringvej 75, DK-2730, Herlev, Denmark.,Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Jakob Burcharth
- Department of Surgery, Zealand University Hospital, University of Copenhagen, Køge, Denmark
| | | | - Jacob Rosenberg
- Centre for Perioperative Optimization, Department of Surgery, Herlev Hospital, Herlev Ringvej 75, DK-2730, Herlev, Denmark.,Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
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22
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Pommergaard HC, Rostved AA, Adam R, Thygesen LC, Salizzoni M, Gómez Bravo MA, Cherqui D, De Simone P, Boudjema K, Mazzaferro V, Soubrane O, García-Valdecasas JC, Fabregat Prous J, Pinna AD, O'Grady J, Karam V, Duvoux C, Rasmussen A. Locoregional treatments before liver transplantation for hepatocellular carcinoma: a study from the European Liver Transplant Registry. Transpl Int 2018; 31:531-539. [PMID: 29380442 DOI: 10.1111/tri.13123] [Citation(s) in RCA: 36] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2017] [Revised: 11/20/2017] [Accepted: 01/23/2018] [Indexed: 12/15/2022]
Abstract
Locoregional treatment while on the waiting list for liver transplantation (Ltx) for hepatocellular carcinoma (HCC) has been shown to improve survival. However, the effect of treatment type has not been investigated. We investigate the effect of locoregional treatment type on survival after Ltx for HCC. We investigated patients registered in the European Liver Transplant Registry database using multivariate Cox regression survival analysis. Information on locoregional therapy was registered for 4978 of 23 124 patients and was associated with improved overall survival [hazard ratio (HR) 0.84 (0.73-0.96)] and HCC-specific survival [HR 0.76 (0.59-0.98)]. Radiofrequency ablation (RFA) was the one monotherapy associated with improved overall survival [HR 0.51 (0.40-0.65)]. In addition, the combination of RFA and transarterial chemoembolization also improved survival [HR 0.74 (0.55-0.99)]. Adjusting for factors related to prognosis, disease severity, and tumor aggressiveness, RFA was highly beneficial for overall and HCC-specific survival. The effect may represent a selection of patients with favorable tumor biology; however, the treatment may be effective per se by halting tumor progression. Clinicaltrials.gov number: NCT02995096.
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Affiliation(s)
- Hans-Christian Pommergaard
- Department of Surgical Gastroenterology and Transplantation, Rigshospitalet, University of Copenhagen, Copenhagen, Denmark
| | - Andreas Arendtsen Rostved
- Department of Surgical Gastroenterology and Transplantation, Rigshospitalet, University of Copenhagen, Copenhagen, Denmark
| | - René Adam
- Department of Hepatobiliary Surgery, Cancer and Transplantation, AP-HP, Hôpital Universitaire Paul Brousse, Inserm U 935, University Paris-Sud, Villejuif, France
| | - Lau Caspar Thygesen
- National Institute of Public Health, University of Southern Denmark, Copenhagen, Denmark
| | - Mauro Salizzoni
- Liver Transplant Center and General Surgery, A.O.U. Città della Salute e della Scienza di Torino, Molinette Hospital, Turin, Italy
| | | | - Daniel Cherqui
- Department of Hepatobiliary Surgery, Cancer and Transplantation, AP-HP, Hôpital Universitaire Paul Brousse, Inserm U 935, University Paris-Sud, Villejuif, France
| | - Paolo De Simone
- Liver Transplantation Unit, Hepatobiliary Surgery, University of Pisa Medical School Hospital, Pisa, Italy
| | - Karim Boudjema
- Service de Chirurgie Hépatobiliaire et Digestive, Hôpital Pontchaillou, Centre Hospitalier Université de Rennes 1, Rennes, France.,INSERM, UMR991, Foie, Métabolisme et Cancer, Université de Rennes 1, Rennes, France
| | - Vincenzo Mazzaferro
- Division of Gastrointestinal Surgery and Liver Transplantation, Istituto Nazionale Tumori, Fondazione IRCCS, University of Milan, Milan, Italy
| | - Olivier Soubrane
- Department of HPB Surgery and Liver Transplant, Beaujon Hospital, Clichy, University Denis Diderot, Paris, France
| | | | - Joan Fabregat Prous
- Unitat de Cirurgia Hepato-Bilio-Pancreàtica, Hospital Universitari de Bellvitge, Barcelona, Spain
| | - Antonio D Pinna
- General Surgery and Transplant Division, S. Orsola Hospital, University of Bologna, Bologna, Italy
| | - John O'Grady
- Institute of Liver Studies, King's College Hospital, London, UK
| | - Vincent Karam
- Department of Hepatobiliary Surgery, Cancer and Transplantation, AP-HP, Hôpital Universitaire Paul Brousse, Inserm U 935, University Paris-Sud, Villejuif, France
| | - Christophe Duvoux
- Liver Transplant Unit, Department of Hepatology, Henri Mondor Hospital, Paris Est University (UPEC), Créteil, France
| | - Allan Rasmussen
- Department of Surgical Gastroenterology and Transplantation, Rigshospitalet, University of Copenhagen, Copenhagen, Denmark
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Abstract
Pre-clinical and clinical data produce mounting evidence that the microbiota is strongly associated with colorectal carcinogenesis. Dysbiosis may change the course of carcinogenesis as microbial actions seem to impact genetic and epigenetic alterations leading to dysplasia, clonal expansion and malignant transformation. Initiation and promotion of colorectal cancer may result from direct bacterial actions, bacterial metabolites and inflammatory pathways. Newer aspects of microbiota and colorectal cancer include quorum sensing, biofilm formation, sidedness and effects/countereffects of microbiota and probiotics on chemotherapy. In the future, targeting the microbiota will probably be a powerful weapon in the battle against CRC as gut microbiology, genomics and metabolomics promise to uncover important linkages between microbiota and intestinal health.
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Affiliation(s)
- Hans Raskov
- Speciallægecentret ved Diakonissestiftelsen, Frederiksberg, Denmark
| | - Jakob Burcharth
- Department of Surgery, Zealand University Hospital, University of Copenhagen, Denmark
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Hupfeld L, Burcharth J, Pommergaard HC, Rosenberg J. Risk factors for recurrence after acute colonic diverticulitis: a systematic review. Int J Colorectal Dis 2017; 32:611-622. [PMID: 28110383 DOI: 10.1007/s00384-017-2766-z] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.9] [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] [Accepted: 01/16/2017] [Indexed: 02/04/2023]
Abstract
PURPOSE Several factors may influence the risk of recurrence after an episode of acute colonic diverticulitis. Until now, a comprehensive systematic overview and evaluation of relevant risk factors have not been presented. This review aimed at assembling and evaluating current evidence on risk factors for recurrence after conservatively treated acute colonic diverticulitis. METHODS PubMed, Embase, and Cochrane databases were searched for studies evaluating risk factors for recurrence after acute diverticulitis treated non-surgically defined as antibiotic treatment, percutaneous abscess drainage, or by observation. Randomized clinical trials and observational studies were included. Analyzed outcome variables were extracted and grouped. No meta-analysis was performed due to low inter-study comparability. Variables were rated according to their likelihood of causing recurrence (no/low, medium, high). RESULTS Of 1153 screened records, 35 studies were included, enrolling 396,676 patients with acute diverticulitis. A total of 50,555 patients experienced recurrences. Primary diverticulitis with abscess formation and young age increased the risk of recurrence. Readmission risk was higher within the first year after remission. In addition, the risk of subsequent diverticulitis more than doubled after two earlier episodes of diverticulitis and the risk increased further for every episode. CONCLUSIONS The best treatment strategy for recurrent diverticulitis is undetermined. However, the risk of a new recurrence seemed to increase after each recurrence making elective resection a viable option at some point after multiple recurrences depending on patient risk factors and preferences.
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Affiliation(s)
- Line Hupfeld
- Department of Surgery, Herlev Hospital, University of Copenhagen, Herlev, Denmark.
| | - Jakob Burcharth
- Department of Surgery, Zealand University Hospital, University of Copenhagen, Køge, Denmark
| | | | - Jacob Rosenberg
- Department of Surgery, Herlev Hospital, University of Copenhagen, Herlev, Denmark
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Thoefner LB, Rostved AA, Pommergaard HC, Rasmussen A. Risk factors for metabolic syndrome after liver transplantation: A systematic review and meta-analysis. Transplant Rev (Orlando) 2017; 32:69-77. [PMID: 28501338 DOI: 10.1016/j.trre.2017.03.004] [Citation(s) in RCA: 42] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2016] [Revised: 02/10/2017] [Accepted: 03/10/2017] [Indexed: 12/21/2022]
Abstract
INTRODUCTION Metabolic syndrome is associated with increased risk of cardiovascular events, which contributes to the elevated mortality rate among liver transplant recipients. The objective of this systematic review and meta-analysis was to assess the prevalence and risk factors for metabolic syndrome after liver transplantation. METHODS The databases Medline and Scopus were searched for observational studies evaluating prevalence and risk factors for metabolic syndrome after liver transplantation. Meta-analyses were performed based on odds ratios (ORs) from multivariable analyses. The Newcastle-Ottawa Scale was used for assessment of bias. RESULTS The literature search generated 1815 records of which 16 articles were included comprising 3539 patients. The post-transplant prevalence of metabolic syndrome was 39%. Eight studies were eligible for meta-analyses, which showed that pre-transplant diabetes (OR=3.54, 95% confidence interval (CI): 2.51-4.98) and pre-transplant obesity (OR=2.44, 95% CI: 1.48-4.03) were risk factors for metabolic syndrome. Six out of seven studies reported that recipients with metabolic syndrome had a higher incidence of cardiovascular events. Four studies showed that survival was not affected by metabolic syndrome. CONCLUSIONS The prevalences of metabolic syndrome and new-onset metabolic syndrome were high after liver transplantation. Metabolic syndrome was associated with cardiovascular events, but not poorer survival. Patients with pre-transplant diabetes and -obesity are at high risk of metabolic syndrome and should be under careful surveillance in order to prevent, earlier diagnose, and treat metabolic syndrome and thereby limit the risk of cardiovascular events.
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Affiliation(s)
- Line Buch Thoefner
- Rigshospitalet - University of Copenhagen, Department of Surgical Gastroenterology and Transplantation, Abdominal Centre, Blegdamsvej 9, 2100 Copenhagen, Denmark.
| | - Andreas Arendtsen Rostved
- Rigshospitalet - University of Copenhagen, Department of Surgical Gastroenterology and Transplantation, Abdominal Centre, Blegdamsvej 9, 2100 Copenhagen, Denmark
| | - Hans-Christian Pommergaard
- Rigshospitalet - University of Copenhagen, Department of Surgical Gastroenterology and Transplantation, Abdominal Centre, Blegdamsvej 9, 2100 Copenhagen, Denmark
| | - Allan Rasmussen
- Rigshospitalet - University of Copenhagen, Department of Surgical Gastroenterology and Transplantation, Abdominal Centre, Blegdamsvej 9, 2100 Copenhagen, Denmark
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Degett TH, Pommergaard HC, Gögenur I. [Hyperthermic intraperitoneal chemotherapy at the primary gastrointestinal cancer operation]. Ugeskr Laeger 2017; 179:V06160454. [PMID: 28330549] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Up to 20% of the patients who undergo radical surgery for colorectal cancer experience recurrence. Hyperthermic intraperitoneal chemotherapy (HIPEC) and cytoreductive surgery have shown to be effective treatment of peritoneal carcinomatosis. HIPEC administered at the primary operation in high-risk patients may also be effective in preventing peritoneal carcinomatosis and improve survival in patients with advanced gastrointestinal cancer.
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Fergo C, Burcharth J, Pommergaard HC, Kildebro N, Rosenberg J. Three-dimensional laparoscopy vs 2-dimensional laparoscopy with high-definition technology for abdominal surgery: a systematic review. Am J Surg 2017; 213:159-170. [DOI: 10.1016/j.amjsurg.2016.07.030] [Citation(s) in RCA: 70] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2015] [Revised: 06/19/2016] [Accepted: 07/06/2016] [Indexed: 12/30/2022]
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Pommergaard HC, Burcharth J, Rosenberg J, Raskov H. The association between location, age and advanced colorectal adenoma characteristics: a propensity-matched analysis. Scand J Gastroenterol 2017; 52:1-4. [PMID: 27686516 DOI: 10.1080/00365521.2016.1218929] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [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: 02/04/2023]
Abstract
PURPOSE Evidence supports an association between certain colorectal adenoma characteristics and predisposition to cancer. The association between anatomical location of colorectal adenoma, age and advanced adenomas needs attention. The objective of this study was to evaluate the possible association between occurrence of sporadic advanced adenomas with location and age. MATERIALS AND METHODS A cross-sectional study using baseline data from index colonoscopy from a randomized controlled trial evaluating chemopreventive treatment against recurrence of colorectal adenomas was performed. Inclusion criteria for patients were one adenoma of >1 cm in diameter or multiple adenomas of any size, or an adenoma of any size and familial disposition for colorectal cancer. Multivariate regression and propensity score-matched analyses were used to correlate location of adenomas and age with advanced adenoma features. RESULTS In this study, 2149 adenomas were removed in 1215 patients. Advanced colorectal adenomas primarily occurred in the anal part of the colon. Older age was associated with more adenomas and more oral occurrence of adenomas, as well as a higher risk of advanced adenomas. Surprisingly, specifically for the oral adenomas the risk of advanced adenoma seems to be lower for older patients compared with younger. CONCLUSIONS This study presents new results with regard to association between age, location of adenomas and risk of advanced adenomas. The results indicate that sigmoidoscopy for screening purposes may be obsolete, and add to the existing literature on which future guidelines for screening may be based.
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Affiliation(s)
| | - Jakob Burcharth
- b Department of Surgery , Zealand University Hospital - University of Copenhagen , Køge , Denmark
| | - Jacob Rosenberg
- c Department of Surgery , Herlev Hospital - University of Copenhagen , Herlev , Denmark
| | - Hans Raskov
- d Speciallægecentret ved Diakonissestiftelsen , Frederiksberg , Denmark
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Scheuer C, Pommergaard HC, Rosenberg J, Gögenur I. Dose dependent sun protective effect of topical melatonin: A randomized, placebo-controlled, double-blind study. J Dermatol Sci 2016; 84:178-185. [DOI: 10.1016/j.jdermsci.2016.08.007] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2015] [Revised: 04/12/2016] [Accepted: 08/09/2016] [Indexed: 11/16/2022]
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Gregersen R, Mortensen LQ, Burcharth J, Pommergaard HC, Rosenberg J. Treatment of patients with acute colonic diverticulitis complicated by abscess formation: A systematic review. Int J Surg 2016; 35:201-208. [PMID: 27741423 DOI: 10.1016/j.ijsu.2016.10.006] [Citation(s) in RCA: 63] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2016] [Revised: 09/30/2016] [Accepted: 10/08/2016] [Indexed: 12/15/2022]
Abstract
PURPOSE This study aimed to systematically review the literature and present the evidence on outcomes after treatment for acute diverticulitis with abscess formation. Secondly, the paper aimed to compare different treatment options. METHODS PubMed, EMBASE and the Cochrane Library were searched. Two authors screened the records independently, initially on title and abstract and subsequently on full-text basis. Articles describing patients treated acutely for Hinchey Ib and II were included. Results were presented by treatment, classified as non-operative (percutaneous abscess drainage (PAD), antibiotics, or unspecified non-operative strategy), PAD, antibiotics, or acute surgery. The outcomes of interest were treatment failure, short-term mortality, and recurrence. RESULTS Of 1723 articles, 42 studies were included, describing 8766 patients with Hinchey Ib-II diverticulitis. Observational studies were the only available evidence. Treatment generally failed for 20% of patients, regardless of non-operative treatment choice. Abscesses with diameters less than 3 cm were sufficiently treated with antibiotics alone, possibly as outpatient treatment. Of patients treated non-operatively, 25% experienced a recurrent episode during long-term follow-up. When comparing PAD to antibiotic treatment, it appeared that PAD lead to recurrence less often (15.9% vs. 22.2%). Patients undergoing acute surgery had increased risk of death (12.1% vs. 1.1%) compared to patients treated non-operatively. Of patients undergoing PAD, 2.5% experienced procedure-related complications and 15.5% needed adjustment or replacement of the drain. CONCLUSIONS Observational studies with unmatched patients were the best available evidence which limited comparability and resulted in risk of selection bias and confounding by indication. Diverticular abscesses with diameters less than 3 cm might be sufficiently treated with antibiotics, while the best treatment for larger abscesses remains uncertain. Acute surgery should be reserved for critically ill patients failing non-operative treatment. Further research is needed to determine the best treatment for different sizes and types of diverticular abscesses, preferably randomized controlled trials.
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Affiliation(s)
- Rasmus Gregersen
- Center for Perioperative Optimization, Department of Surgery, Herlev Hospital, Herlev Ringvej 75, 2730 Herlev, Denmark; Faculty of Health and Medical Sciences, University of Copenhagen, Denmark.
| | - Laura Quitzau Mortensen
- Center for Perioperative Optimization, Department of Surgery, Herlev Hospital, Herlev Ringvej 75, 2730 Herlev, Denmark; Faculty of Health and Medical Sciences, University of Copenhagen, Denmark
| | - Jakob Burcharth
- Center for Perioperative Optimization, Department of Surgery, Herlev Hospital, Herlev Ringvej 75, 2730 Herlev, Denmark
| | | | - Jacob Rosenberg
- Center for Perioperative Optimization, Department of Surgery, Herlev Hospital, Herlev Ringvej 75, 2730 Herlev, Denmark; Faculty of Health and Medical Sciences, University of Copenhagen, Denmark
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Lolle I, Pommergaard HC, Schefte DF, Bulut O, Krarup PM, Rosenstock S. Inadvertent Splenectomy in Patients Undergoing Resection for Colorectal Cancer Increases Short-Term Mortality but Does Not Decrease Long-Term Survival in a Propensity Score Model: A Nationwide Cohort Study. J Am Coll Surg 2016. [DOI: 10.1016/j.jamcollsurg.2016.06.366] [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]
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Burcharth J, Liljekvist MS, Pommergaard HC, Rosenberg J. Cumulative incidence and registry validation of groin hernia repair in a 34-year nationwide cohort. Dan Med J 2016; 63:A5284. [PMID: 27697133] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
INTRODUCTION The purpose of this study was to present a nationwide cumulative incidence and an age-specific incidence rate of groin hernia repair as well as to evaluate the validity of inguinal and femoral hernia operation codes in the Danish National Patient Registry (DNPR). METHODS All persons born in Denmark from 1977 to 2010 were investigated for groin hernia operations registered in the DNPR with respect to date of admission, operation, discharge and specific operation codes. To validate the predictive values of registrations, we randomly extracted data on elective and emergency groin hernia operations from the DNPR from 2005 to 2010 and examined the medical records. RESULTS The study population (n = 2,109,417) from 1977 to 2010 was followed from the primary groin hernia operation (n = 53,262) to 2010, yielding a total of 33.4 million person-years of follow-up. The probability of being operated for a groin hernia prior to the age of 34 years was 5.70% (95% confidence interval (CI): 5.62-5.78) for males and 1.26% (95% CI: 1.20-1.32) for females. The highest incidence rate was seen among males aged 0-1 years (10.19 (95% CI: 10.00-10.38)). The positive predictive value of patients registered with inguinal hernia operations in the DNPR who had been operated for an inguinal hernia was 100% (95% CI: 96-100%) and 91.3% (95% CI: 83-96%) for femoral hernia operations. CONCLUSIONS The incidence rate of groin hernia operations peaked at the 0-1 year age group in males and at the 3-4-year age group in females. Furthermore, the validation of the DNPR showed very high positive predictive values for both inguinal hernia operations and femoral hernia operations. FUNDING none. TRIAL REGISTRATION not relevant.
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Abstract
Irritable bowel syndrome is a common functional gastrointestinal disorder and it is now evident that irritable bowel syndrome is a multi-factorial complex of changes in microbiota and immunology. The bidirectional neurohumoral integrated communication between the microbiota and the autonomous nervous system is called the gut-brain-axis, which integrates brain and GI functions, such as gut motility, appetite and weight. The gut-brain-axis has a central function in the perpetuation of irritable bowel syndrome and the microbiota plays a critical role. The purpose of this article is to review recent research concerning the epidemiology of irritable bowel syndrome, influence of microbiota, probiota, gut-brain-axis, and possible treatment modalities on irritable bowel syndrome.
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Affiliation(s)
- Hans Raskov
- Speciallægecentret ved Diakonissestiftelsen, Frederiksberg, Denmark
| | - Jakob Burcharth
- Department of Surgery, Zealand University Hospital, University of Copenhagen, Copenhagen, Denmark,Centre for Perioperative Optimization, Herlev Hospital, University of Copenhagen, Copenhagen, Denmark
| | - Hans-Christian Pommergaard
- Centre for Perioperative Optimization, Herlev Hospital, University of Copenhagen, Copenhagen, Denmark,Department of Surgery, Hvidovre Hospital, University of Copenhagen, Copenhagen, Denmark
| | - Jacob Rosenberg
- Centre for Perioperative Optimization, Herlev Hospital, University of Copenhagen, Copenhagen, Denmark
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34
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Philip Rothman J, Burcharth J, Pommergaard HC, Viereck S, Rosenberg J. Preoperative Risk Factors for Conversion of Laparoscopic Cholecystectomy to Open Surgery - A Systematic Review and Meta-Analysis of Observational Studies. Dig Surg 2016; 33:414-23. [PMID: 27160289 DOI: 10.1159/000445505] [Citation(s) in RCA: 54] [Impact Index Per Article: 6.8] [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] [Received: 01/17/2015] [Accepted: 03/15/2016] [Indexed: 12/12/2022]
Abstract
BACKGROUND Preoperative risk factors for the conversion of laparoscopic cholecystectomy to open surgery have been identified, but never been explored systematically. Our objective was to systematically present the evidence of preoperative risk factors for conversion of laparoscopic cholecystectomy to open surgery. METHODS PubMed and Embase were searched systematically in March 2014. Observational studies evaluating preoperative risk factors for conversion of laparoscopic cholecystectomy to open surgery in patients with gallstone disease were included. The outcome variables extracted were patient demographics, medical history, severity of gallstone disease, and preoperative laboratory values. RESULTS A total of 1,393 studies were screened for eligibility. We found 32 studies, including 460,995 patients operated with laparoscopic cholecystectomy, eligible for the systematic review. Of these, 10 studies were suitable for 7 meta-analyses on age, gender, body mass index, previous abdominal surgery, severity of disease, white blood cell count, and gallbladder wall thickness. CONCLUSIONS A gallbladder wall thicker than 4-5 mm, a contracted gallbladder, age above 60 or 65, male gender, and acute cholecystitis were risk factors for the conversion of laparoscopic cholecystectomy to open surgery. Furthermore, there was no association between diabetes mellitus or white blood cell count and conversion to open surgery.
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Affiliation(s)
- Josephine Philip Rothman
- Department of Surgery, Center for Perioperative Optimization, Herlev Hospital, University of Copenhagen, Copenhagen, Denmark
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Gregersen R, Andresen K, Burcharth J, Pommergaard HC, Rosenberg J. Short-term mortality, readmission, and recurrence in treatment of acute diverticulitis with abscess formation: a nationwide register-based cohort study. Int J Colorectal Dis 2016; 31:983-990. [PMID: 27029799 DOI: 10.1007/s00384-016-2568-8] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 03/21/2016] [Indexed: 02/07/2023]
Abstract
PURPOSE The aim of the study was to investigate short-term mortality, readmission, and recurrence in a national cohort of patients with Hinchey Ib-II diverticulitis. METHODS The retrospective cohort-investigation was conducted using a database consisting of the entire Danish population (n = 6,641,672) in year 2000-2012, formed by linking the Danish Registers. Patients admitted with acute Hinchey Ib-II diverticulitis were identified from ICD-10 discharge codes and stratified according to treatment into an operative, drainage, and antibiotics group. The primary outcome was 30-day mortality from admission, secondary outcomes were mortality, readmission, and recurrence within 30 days post-discharge. The study was reported using RECORD guidelines. RESULTS A total of 3148 eligible patients were identified. The cohort had a mean age of 65.1 year, 25.6 % had previously been admitted with diverticulitis, and 48.1 % had registered comorbidities. Within 30 days from admission, 8.7 % of the patients died. Of patients discharged, 2.5 % died, 23.8 % was readmitted, and 5.9 % was readmitted due to diverticulitis within 30 days from discharge. In multivariate analyses, increasing age was associated with mortality at odds-ratio (95 % CI) 1.10 (1.09-1.12). Previous complicated and uncomplicated diverticulitis reduced mortality with odds-ratio 0.50 (0.33-0.76) and 0.73 (0.58-0.92), while uncomplicated diverticulitis also increased risk of recurrence with odds-ratio 1.51 (1.24-1.84). Glucocorticoid usage was associated with mortality with odds-ratio 1.49 (1.23-1.81) and readmission with odds-ratio 2.91 (1.24-6.80). CONCLUSION Acute diverticulitis with abscess formation is a severe and life-threatening condition. Direct comparisons of treatment groups were not possible due to possible confounding by indication.
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Affiliation(s)
- Rasmus Gregersen
- Centre for Perioperative Optimization, Department of Surgery, Herlev Hospital, Herlev Ringvej 75, DK-2730, Herlev, Denmark.
- Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark.
| | - Kristoffer Andresen
- Centre for Perioperative Optimization, Department of Surgery, Herlev Hospital, Herlev Ringvej 75, DK-2730, Herlev, Denmark
- Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Jakob Burcharth
- Centre for Perioperative Optimization, Department of Surgery, Herlev Hospital, Herlev Ringvej 75, DK-2730, Herlev, Denmark
| | | | - Jacob Rosenberg
- Centre for Perioperative Optimization, Department of Surgery, Herlev Hospital, Herlev Ringvej 75, DK-2730, Herlev, Denmark
- Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
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Pommergaard HC, Burcharth J, Rosenberg J, Rasmussen A. Serologic and molecular biomarkers for recurrence of hepatocellular carcinoma after liver transplantation: A systematic review and meta-analysis. Transplant Rev (Orlando) 2016; 30:171-7. [PMID: 27118303 DOI: 10.1016/j.trre.2016.03.001] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2016] [Revised: 03/13/2016] [Accepted: 03/25/2016] [Indexed: 02/07/2023]
Abstract
INTRODUCTION Recurrence after liver transplantation (LT) for hepatocellular carcinoma (HCC) is a major cause of mortality. Knowledge on biomarkers may contribute to better surveillance based on the patients' risk of recurrence. Reviewing the literature, we aimed to identify serological and molecular biomarkers for recurrence of hepatocellular carcinoma after liver transplantation. METHODS A literature search was performed in the databases PubMed and Scopus to identify observational studies evaluating serological or molecular biomarkers for recurrence of HCC after LT using adjusted analysis to correct for confounding. RESULTS Of 502 records, 69 mainly retrospective studies were included with a total of 15,213 patients. Of these, 41 studies were suitable for meta-analyses, which showed that the serum markers pre-transplant α-fetoprotein (AFP) (hazard ratio (HR) 2.69 [2.08-3.47]), pre-transplant des-gamma-carboxy prothrombin (DCP) (HR 5.99 [3.27-10.98]), and allelic imbalance in microsatellites in DNA of tumor tissue (HR 13.49 [3.17-57.30]) were related to recurrence. CONCLUSIONS AFP, DCP and allelic imbalance in microsatellites may be used to predict recurrence. Together with other modalities, biomarkers may be used in future transplantation criteria to optimize selection of suitable patients.
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Affiliation(s)
- Hans-Christian Pommergaard
- Hvidovre Hospital - University of Copenhagen, Department of Surgery, Kettegård Allé 30, 2650 Hvidovre, Denmark.
| | - Jakob Burcharth
- Herlev Hospital - University of Copenhagen, Department of Surgery, Herlev Ringvej 75, 2730 Herlev, Denmark
| | - Jacob Rosenberg
- Herlev Hospital - University of Copenhagen, Department of Surgery, Herlev Ringvej 75, 2730 Herlev, Denmark
| | - Allan Rasmussen
- Rigshospitalet - University of Copenhagen, Department of Surgical Gastroenterology and Transplantation, Abdominal Centre, Blegdamsvej 9, 2100 Copenhagen, Denmark
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Scheuer C, Pommergaard HC, Rosenberg J, Gögenur I. Effect of topical application of melatonin cream 12.5% on cognitive parameters: A randomized, placebo-controlled, double-blind crossover study in healthy volunteers. J DERMATOL TREAT 2016; 27:488-494. [PMID: 27052036 DOI: 10.3109/09546634.2016.1161154] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [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: 11/13/2022]
Abstract
BACKGROUND Skin cancer is an increasing problem in modern dermatology. Earlier studies have shown protective effects against ultraviolet radiation (UVR)-induced skin damage by topical treatment with melatonin. However, the potential sedative effects of full body topical application of melatonin have never been investigated. Objectives The aim of this study was to assess the degree of cognitive dysfunction when using melatonin cream as full body topical application. METHODS In a randomized, placebo-controlled, double-blind crossover study in healthy volunteers, the degree of cognitive dysfunction when using cream containing 12.5% melatonin as full body application was assessed. A group of ten volunteers had melatonin cream 12.5% applied on 80% of their body surface area, and degree of cognitive dysfunction was assessed using a test battery consisting of Karolinska sleepiness scale (KSS), Finger tapping test (FTT) and Continuous Reaction time (CRT). RESULTS No significant effects on cognitive parameters were found. However, great inter-individual variations on cognitive parameters were observed. CONCLUSION This study was the first to assess degree of cognitive dysfunction resulting from application of melatonin cream on a full body surface area. The results support that melatonin is a safe drug for dermal application even in a high dosage.
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Affiliation(s)
- Cecilie Scheuer
- a Department of Surgery , Køge Hospital - University of Copenhagen , Køge , Denmark
| | | | - Jacob Rosenberg
- c Department of Surgery , Herlev Hospital - University of Copenhagen , Herlev , Denmark
| | - Ismail Gögenur
- a Department of Surgery , Køge Hospital - University of Copenhagen , Køge , Denmark
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Gessler B, Bock D, Pommergaard HC, Burcharth J, Rosenberg J, Angenete E. Risk factors for anastomotic dehiscence in colon cancer surgery--a population-based registry study. Int J Colorectal Dis 2016; 31:895-902. [PMID: 26872659 DOI: 10.1007/s00384-016-2532-7] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [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] [Accepted: 02/03/2016] [Indexed: 02/04/2023]
Abstract
PURPOSE The aim of this was to assess potential risk factors for anastomotic dehiscence in colon cancer surgery in a national cohort. METHODS All patients, who had undergone a resection of a large bowel segment with an anastomosis between 2008 and 2011, were identified in the Swedish Colon Cancer Registry. Patient factors, socioeconomic factors, surgical factors, and medication and hospital data were combined to evaluate risk factors for anastomotic dehiscence. RESULTS The prevalence of anastomotic dehiscence was 4.3 % (497/11 565). Male sex, ASA classification III-IV, prescribed medications, bleeding more than 300 mL, and uncommon colorectal resections were associated with a higher risk of anastomotic dehiscence. Hospital stay was increased with 14.5 days, and 30-day mortality as well as long-term mortality was higher in the anastomotic dehiscence group. CONCLUSIONS There are several factors that are possible to know preoperatively or during surgery that can indicate whether an anastomosis is an appropriate option. Anastomotic dehiscence increases hospital stay and long-term mortality.
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Affiliation(s)
- Bodil Gessler
- Department of Surgery, Institute of Clinical Sciences, Sahlgrenska Academy at University of Gothenburg, Sahlgrenska University Hospital/Östra, SE-416 85, Gothenburg, Sweden. .,SSORG-Scandinavian Surgical Outcomes Research Group, Gothenburg, Sweden.
| | - David Bock
- Department of Surgery, Institute of Clinical Sciences, Sahlgrenska Academy at University of Gothenburg, Sahlgrenska University Hospital/Östra, SE-416 85, Gothenburg, Sweden.,SSORG-Scandinavian Surgical Outcomes Research Group, Gothenburg, Sweden
| | - Hans-Christian Pommergaard
- SSORG-Scandinavian Surgical Outcomes Research Group, Gothenburg, Sweden.,Department of Surgery, Herlev Hospital, University of Copenhagen, Herlev Ringvej 75, DK-2730, Herlev, Denmark
| | - Jakob Burcharth
- SSORG-Scandinavian Surgical Outcomes Research Group, Gothenburg, Sweden.,Department of Surgery, Herlev Hospital, University of Copenhagen, Herlev Ringvej 75, DK-2730, Herlev, Denmark
| | - Jacob Rosenberg
- SSORG-Scandinavian Surgical Outcomes Research Group, Gothenburg, Sweden.,Department of Surgery, Herlev Hospital, University of Copenhagen, Herlev Ringvej 75, DK-2730, Herlev, Denmark
| | - Eva Angenete
- Department of Surgery, Institute of Clinical Sciences, Sahlgrenska Academy at University of Gothenburg, Sahlgrenska University Hospital/Östra, SE-416 85, Gothenburg, Sweden.,SSORG-Scandinavian Surgical Outcomes Research Group, Gothenburg, Sweden
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Thornell A, Angenete E, Bisgaard T, Bock D, Burcharth J, Heath J, Pommergaard HC, Rosenberg J, Stilling N, Skullman S, Haglind E. Laparoscopic Lavage for Perforated Diverticulitis With Purulent Peritonitis: A Randomized Trial. Ann Intern Med 2016; 164:137-45. [PMID: 26784672 DOI: 10.7326/m15-1210] [Citation(s) in RCA: 68] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
BACKGROUND Perforated diverticulitis with purulent peritonitis has traditionally been treated with open colon resection and stoma formation with risk for reoperations, morbidity, and mortality. Laparoscopic lavage alone has been suggested as definitive treatment. OBJECTIVE To compare laparoscopic lavage with open colon resection and colostomy (Hartmann procedure) for perforated diverticulitis with purulent peritonitis. DESIGN Randomized, controlled, multicenter, open-label trial. (ISRCTN registry number: ISRCTN82208287). SETTING 9 hospitals in Sweden and Denmark. PATIENTS Patients who have confirmed Hinchey grade III perforated diverticulitis with purulent peritonitis at diagnostic laparoscopy. INTERVENTION Randomization between laparoscopic lavage and the Hartmann procedure. MEASUREMENTS Primary outcome was the percentage of patients having 1 or more reoperations within 12 months. Key secondary outcomes were number of reoperations, hospital readmissions, total length of hospital stay during 12 months, and adverse events. RESULTS A total of 43 and 40 patients were randomly assigned to laparoscopic lavage and the Hartmann procedure with a median (first, third quartiles) follow-up of 372 days (336, 394) and 378 days (226, 396), respectively. Fewer patients in the laparoscopic group (12 of 43; 27.9%) than in the Hartmann group (25 of 40; 62.5%) had at least 1 reoperation within 12 months (relative risk reduction, 59%; relative risk, 0.41 [95% CI, 0.23 to 0.72]; P = 0.004). Mortality and severe adverse events did not differ between groups. Total length of hospital stay (days) within 12 months was shorter for the laparoscopic group than the Hartmann group, with a reduction of 35% (relative risk, 0.65 [CI, 0.45 to 0.94]; P = 0.047). After 12 months, 3 patients in the laparoscopic group and 11 in the Hartmann group had a stoma. LIMITATION Not all patients presenting with suspected diverticulitis were enrolled. CONCLUSION Laparoscopic lavage reduced the need for reoperations, had a similar safety profile to the Hartmann procedure, and may be an appropriate treatment of choice for acute perforated diverticulitis with purulent peritonitis. PRIMARY FUNDING SOURCE ALF; Sahlgrenska University Hospital, Gothenburg.
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Pommergaard HC, Burcharth J, Rosenberg J, Raskov H. Aspirin, Calcitriol, and Calcium Do Not Prevent Adenoma Recurrence in a Randomized Controlled Trial. Gastroenterology 2016; 150:114-122.e4. [PMID: 26404953 DOI: 10.1053/j.gastro.2015.09.010] [Citation(s) in RCA: 52] [Impact Index Per Article: 6.5] [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] [Received: 08/20/2014] [Revised: 09/10/2015] [Accepted: 09/12/2015] [Indexed: 02/06/2023]
Abstract
BACKGROUND & AIMS Chemopreventive strategies might be used to reduce the recurrence of colorectal adenomas and the incidence of colorectal cancer. We performed a randomized, double-blind, placebo-controlled trial to determine whether a combination of acetylsalicylic acid (aspirin), calcitriol, and calcium carbonate could prevent colorectal adenoma recurrence. METHODS We included 1107 patients with 1 or more sporadic adenoma(s) removed from the colon or rectum at centers in Europe, Russia, or the United States, from 2004 through 2010. Inclusion criteria were 1 adenoma greater than 1 cm in diameter, more than 1 adenoma of any size, or an adenoma of any size and first-degree relatives with colorectal cancer. Subjects were assigned randomly to groups given 0.5 μg calcitriol, 75 mg acetylsalicylic acid, and 1250 mg calcium carbonate (n = 209), or placebo (n = 218), each day for 3 years. The primary outcome was adenoma recurrence assessed by colonoscopy after 3 years. Secondary outcomes were the proportion of patients with advanced adenomas, the total number of colorectal adenomas, and adenoma size and features. RESULTS The trial was stopped in October 2010 because of futility. In this analysis, we found no differences between groups in the rate of recurrence (odds ratio [OR], 0.95; 95% confidence interval [CI], 0.61-1.48), adverse effects, or secondary outcomes. Subgroup analyses indicated that the treatment effects may be influenced by smoking status (nonsmokers OR, 0.65; 95% CI, 0.26-1.22 vs current smokers OR, 1.70; 95% CI, 0.70-4.09; P value interaction < .05). However, the overall interaction was not significant. CONCLUSIONS In a prospective study, the combination of calcitriol, aspirin, and calcium carbonate did not prevent recurrence of colorectal adenomas over a 3-year period. The negative results might be owing to the effects of smoking or low doses of the tested agents. Clinicaltrials.gov number: NCT00486512.
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Affiliation(s)
| | - Jakob Burcharth
- Department of Surgery, Herlev Hospital, University of Copenhagen, Herlev, Denmark
| | - Jacob Rosenberg
- Department of Surgery, Herlev Hospital, University of Copenhagen, Herlev, Denmark
| | - Hans Raskov
- Speciallægecentret ved Diakonissestiftelsen, Frederiksberg, Denmark
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Sørensen CG, Karlsson WK, Pommergaard HC, Burcharth J, Rosenberg J. The diagnostic accuracy of carcinoembryonic antigen to detect colorectal cancer recurrence - A systematic review. Int J Surg 2015; 25:134-44. [PMID: 26700203 DOI: 10.1016/j.ijsu.2015.11.065] [Citation(s) in RCA: 74] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2015] [Accepted: 11/29/2015] [Indexed: 01/15/2023]
Abstract
INTRODUCTION Carcinoembryonic Antigen (CEA) has been used as a tumor marker in the follow-up of colorectal cancer for more than 40 years. Controversy exists regarding its diagnostic applicability due to a relatively low sensitivity and a questionable effect on mortality. The aim of this review was to assess the diagnostic accuracy of CEA in detecting recurrence after intended curative surgery for primary colorectal cancer. METHODS Systematic literature searches were performed in PubMed, EMBASE and Cochrane databases, and articles were chosen based on predefined inclusion criteria. Reference lists from included articles were manually searched for additional publications of relevance. RESULTS Forty-two original studies with generally representative populations and long follow-up were included. Data were reported on outcomes from 9,834 CEA tests during follow-up. Reporting on the reference standards used was not optimal. Sensitivity of CEA ranged from 17.4 % to 100 %, specificity ranged from 66.1 % to 98.4 %, positive predictive value ranged from 45.8 % to 95.2% and negative predictive value ranged from 74.5 % to 100 %. CONCLUSION Results point toward a sensitivity of CEA ranging between 50 % and 80 %, and a specificity and negative predictive value above 80 %. Results on positive predictive value showed low reliability. Overall, CEA did not effectively detect treatable recurrences at an early stage, and a clinically relevant effect on patient mortality remains to be proven.
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Affiliation(s)
- Caspar G Sørensen
- Faculty of Health Sciences - University of Copenhagen, Blegdamsvej 3 - 2200 København N, Denmark.
| | - William K Karlsson
- Faculty of Health Sciences - University of Copenhagen, Blegdamsvej 3 - 2200 København N, Denmark
| | - Hans-Christian Pommergaard
- Hvidovre Hospital - University of Copenhagen, Department of Surgery, Kettegård Alle 30 - 2650 Hvidovre, Denmark
| | - Jakob Burcharth
- Herlev Hospital - University of Copenhagen, Centre for Perioperative Optimization, Department of Surgery, Herlev Ringvej 75 - 2730 Herlev, Denmark
| | - Jacob Rosenberg
- Herlev Hospital - University of Copenhagen, Centre for Perioperative Optimization, Department of Surgery, Herlev Ringvej 75 - 2730 Herlev, Denmark
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Fergo C, Pommergaard HC, Burcharth J, Rosenberg J. [Three-dimensional laparoscopy has the potential to replace two-dimensional laparoscopy in abdominal surgery]. Ugeskr Laeger 2015; 177:V11140635. [PMID: 26099183] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Studies comparing three-dimensional (3D) laparoscopy with 2D laparoscopy have shown shorter operation time, a short learning curve as well as better depth perception. Robotic surgery includes the EndoWrist function in addition to the 3D view; however robotic surgery lacks haptic feedback. No evidence from clinical trials for the potential benefits of robotic surgery exists. Thus, 3D laparoscopy is an eligible alternative to both 2D laparoscopy and robotic surgery.
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Affiliation(s)
- Charlotte Fergo
- Center for Perioperativ Optimering, Herlev Hospital, Herlev Ringvej 75, 2730 Herlev.
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Fenger AQ, Helvind NM, Pommergaard HC, Burcharth J, Rosenberg J. Fibrin sealant for mesh fixation in laparoscopic groin hernia repair does not increase long-term recurrence. Surg Endosc 2015; 30:986-92. [DOI: 10.1007/s00464-015-4280-0] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2015] [Accepted: 05/19/2015] [Indexed: 12/25/2022]
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Abstract
Background. Several factors influence the risk of recurrence after inguinal hernia surgery; however, a systematic review and meta-analysis of patient-related risk factors for recurrence after inguinal hernia surgery has not been performed earlier. Methods. MEDLINE, Embase, and Cochrane databases were searched in June 2013 for studies evaluating patient-related risk factors for recurrence after inguinal hernia operation. Observational studies evaluating nontechnical patient-related risk factors for recurrence after inguinal hernia surgery were included. Outcome variables were grouped under patient demographics, hernia characteristics, connective tissue composition and degradation, habits and social relations, and conditions related to inguinal hernia recurrence. Results. From a total of 5061 records screened, we included 40 observational studies enrolling 720 651 inguinal hernia procedures in 714 917 patients in the systematic review. Of the 40 studies, 14 studies were included in 8 meta-analyses evaluating sex, hernia type, hernia size, re-recurrence, bilaterality, mode of admission, age, and smoking as risk factors for recurrence after inguinal hernia surgery in a total of 378 824 procedures in 375 620 patients. Conclusions. We found that female sex, direct inguinal hernias at the primary procedure, operation for a recurrent inguinal hernia, and smoking were significant risk factors for recurrence after inguinal hernia surgery. This knowledge of patient-related risk factors for recurrence after inguinal hernia surgery could be implemented in clinical practice.
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Affiliation(s)
| | | | - Thue Bisgaard
- Hvidovre Hospital, University of Copenhagen, Hvidovre, Denmark
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Liljekvist MS, Andresen K, Pommergaard HC, Rosenberg J. For 481 biomedical open access journals, articles are not searchable in the Directory of Open Access Journals nor in conventional biomedical databases. PeerJ 2015; 3:e972. [PMID: 26038727 PMCID: PMC4451041 DOI: 10.7717/peerj.972] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2014] [Accepted: 05/03/2015] [Indexed: 11/20/2022] Open
Abstract
Background. Open access (OA) journals allows access to research papers free of charge to the reader. Traditionally, biomedical researchers use databases like MEDLINE and EMBASE to discover new advances. However, biomedical OA journals might not fulfill such databases’ criteria, hindering dissemination. The Directory of Open Access Journals (DOAJ) is a database exclusively listing OA journals. The aim of this study was to investigate DOAJ’s coverage of biomedical OA journals compared with the conventional biomedical databases. Methods. Information on all journals listed in four conventional biomedical databases (MEDLINE, PubMed Central, EMBASE and SCOPUS) and DOAJ were gathered. Journals were included if they were (1) actively publishing, (2) full OA, (3) prospectively indexed in one or more database, and (4) of biomedical subject. Impact factor and journal language were also collected. DOAJ was compared with conventional databases regarding the proportion of journals covered, along with their impact factor and publishing language. The proportion of journals with articles indexed by DOAJ was determined. Results. In total, 3,236 biomedical OA journals were included in the study. Of the included journals, 86.7% were listed in DOAJ. Combined, the conventional biomedical databases listed 75.0% of the journals; 18.7% in MEDLINE; 36.5% in PubMed Central; 51.5% in SCOPUS and 50.6% in EMBASE. Of the journals in DOAJ, 88.7% published in English and 20.6% had received impact factor for 2012 compared with 93.5% and 26.0%, respectively, for journals in the conventional biomedical databases. A subset of 51.1% and 48.5% of the journals in DOAJ had articles indexed from 2012 and 2013, respectively. Of journals exclusively listed in DOAJ, one journal had received an impact factor for 2012, and 59.6% of the journals had no content from 2013 indexed in DOAJ. Conclusions. DOAJ is the most complete registry of biomedical OA journals compared with five conventional biomedical databases. However, DOAJ only indexes articles for half of the biomedical journals listed, making it an incomplete source for biomedical research papers in general.
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Affiliation(s)
| | | | | | - Jacob Rosenberg
- Department of Surgery, Herlev Hospital, University of Copenhagen , Denmark
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Danielsen AK, Pommergaard HC, Burcharth J, Angenete E, Rosenberg J. Translation of questionnaires measuring health related quality of life is not standardized: a literature based research study. PLoS One 2015; 10:e0127050. [PMID: 25965447 PMCID: PMC4428794 DOI: 10.1371/journal.pone.0127050] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2014] [Accepted: 04/10/2015] [Indexed: 11/22/2022] Open
Abstract
Introduction There is growing awareness of the need to explore patient reported outcomes in clinical trials. In the Scandinavian Surgical Outcomes Research Group we are conducting several clinical trials in cooperation between Danish and Swedish surgical researchers, and we use questionnaires aimed at patients from both countries. In relation to this and similar international cooperation, the validity and reliability of translated questionnaires are central aspects. Main Objectives The purpose of this study was to explore which methodological measures were used in studies reporting translation of questionnaires. Furthermore, we wanted to make some methodological suggestions for clinical researchers who are faced with having to translate a questionnaire. Material and Methods We designed a research study based on a survey of the literature and extracted data from published studies reporting the methodological process when translating questionnaires on health related quality of life for different diseases. Results We retrieved 187 studies and out of theses we included 52 studies. The psychometric properties of the translated versions were validated using different tests. The focus was on internal validity (96%), reliability (67%) criterion validity (81%), and construct validity (62%). For internal validity Cronbach's alpha was used in 94% of the studies. Conclusions This study shows that there seems to be a consensus regarding the translation process (especially for internal validity) although most researchers did not use a translation guide. Moreover, we recommended that clinical researchers should consider three steps covering the process of translation, the qualitative validation as well as the quantitative validation.
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Affiliation(s)
- Anne Kjaergaard Danielsen
- Department of Nursing, Faculty of Health and Technology, Metropolitan University College, Copenhagen, Denmark
- * E-mail:
| | | | - Jakob Burcharth
- Department of Surgery, Herlev Hospital, University of Copenhagen, Herlev, Denmark
| | - Eva Angenete
- Department of Surgery, Institute of Clinical Sciences, Sahlgrenska Academy at the University of Gothenburg, SSORG, Scandinavian Surgical Outcomes Research Group, Sahlgrenska University Hospital/Östra, Gothenburg, Sweden
| | - Jacob Rosenberg
- Department of Surgery, Herlev Hospital, University of Copenhagen, Herlev, Denmark
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Hupfeld L, Burcharth J, Pommergaard HC, Rosenberg J. [Treatment of acute purulent diverticulitis is still not clarified]. Ugeskr Laeger 2015; 177:872-874. [PMID: 26539572] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Inflammation in colonic diverticula can develop into acute diverticulitis. Treatment varies depending on illness severity. Perforated diverticulitis with faecal peritonitis is treated surgically and Hartmann's procedure is the preferred operation. Peritoneal lavage might be an alternative to resection for purulent peritonitis. However, ongoing randomized trials are awaited to clarify this.
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Fenger AQ, Pommergaard HC, Burcharth J, Rosenberg J. [Fibrin adhesives and cyanoacrylates in surgical specialties]. Ugeskr Laeger 2015; 177:V09140484. [PMID: 25749116] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Fibrin adhesives and cyanoacrylates are used in surgical specialties due to their ability of fixating tissue. The fibrin-based adhesives mimic the blood's own coagulation cascade, while the cyanoacrylate-based products function like commercially available superglue. The use of adhesives varies from skin lacerations to highly complicated surgical procedures, and adhesives provide an alternative or combined method of fixation to traditional fixation as suture. We present results from various clinical studies to investigate the use of fibrin-based and cyanoacrylate adhesives.
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Affiliation(s)
- Andreas Qwist Fenger
- Center for Perioperativ Optimering, Gastroenheden, Herlev Hospital, Herlev Ringvej 75, 2730 Herlev.
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Rosenberg J, Burcharth J, Pommergaard HC, Vinther S. Authorship issues in multi-centre clinical trials: the importance of making an authorship contract. Dan Med J 2015; 62:A5009. [PMID: 25634509] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Discussions about authorship often arise in multi-centre clinical trials. Such trials may involve up to hundreds of contributors of whom some will eventually co-author the final publication. It is, however, often impossible to involve all contributors in the manuscript process sufficiently for them to qualify for authorship as defined by the International Committee of Medical Journal Editors. Therefore, rules for authorship in multi-centre trials are strongly recommended. We propose two contracts to prevent conflicts regarding authorship; both are freely available for use without pay but with reference to the original source.
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Affiliation(s)
- Jacob Rosenberg
- Gastroenheden, Kirurgisk Sektion D, Herlev Hospital, Herlev Ringvej 75, 2730 Herlev, Denmark.
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Rosenberg J, Pommergaard HC, Vinther S, Burcharth J. Dispersed publication of editorial research. Dan Med J 2015; 62:A5007. [PMID: 25634502] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
INTRODUCTION There seems to be no dedicated journals available for publication of editorial research in the biomedical sciences; that is research into editorial or publication process issues involving the scientific approach to writing, reviewing, editing and publishing. It is unknown where papers concerning these issues are typically published. We therefore set out to study the distribution of such papers in the biomedical literature. METHODS In this pilot study, we conducted a MEDLINE search for papers on editorial research published in the year 2012. RESULTS We found 445 articles published in 311 journals with a median of one article per journal (range: 1-17). CONCLUSION The publication of papers on editorial research seems to be dispersed. In order to increase the visibility of this research field, it may be reasonable to establish well-defined platforms such as dedicated journals or journal sections in which such research could preferably be published.
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Affiliation(s)
- Jacob Rosenberg
- Gastroenheden, Kirurgisk Sektion D, Herlev Hospital, Herlev Ringvej 75, 2730 Herlev, Denmark.
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