Åsmund Avdem Fretland
- PhD candidate; MD
- +47 23 07 05 06
Publications 2024
Development and external evaluation of a self-learning auto-segmentation model for Colorectal Cancer Liver Metastases Assessment (COALA)
Insights Imaging, 15 (1), 279
DOI 10.1186/s13244-024-01820-7, PubMed 39576456
Hybrid optical-vision tracking in laparoscopy: accuracy of navigation and ultrasound reconstruction
Minim Invasive Ther Allied Technol, 33 (3), 176-183
DOI 10.1080/13645706.2024.2313032, PubMed 38334755
Transfemoral hepatic vein access in double vein embolization - initial experience and feasibility
CVIR Endovasc, 7 (1), 64
DOI 10.1186/s42155-024-00478-y, PubMed 39225967
Laparoscopic Versus Open Hemihepatectomy: The ORANGE II PLUS Multicenter Randomized Controlled Trial
J Clin Oncol, 42 (15), 1799-1809
DOI 10.1200/JCO.23.01019, PubMed 38640453
Optimal imaging before local therapy of colorectal liver metastases - Authors' reply
Lancet Oncol, 25 (3), e101
DOI 10.1016/S1470-2045(24)00093-7, PubMed 38423054
Is prolonged operative time associated with postoperative complications in liver surgery? An international multicentre cohort study of 5424 patients
Surg Endosc (in press)
DOI 10.1007/s00464-024-11276-x, PubMed 39347957
Pan-European survey on current treatment strategies in patients with upfront resectable colorectal liver metastases
HPB (Oxford), 26 (5), 639-647
DOI 10.1016/j.hpb.2024.01.007, PubMed 38373870
Deep learning-assisted survival prognosis in renal cancer: A CT scan-based personalized approach
Heliyon, 10 (2), e24374
DOI 10.1016/j.heliyon.2024.e24374, PubMed 38298725
Automated algorithm for medical data structuring, and segmentation using artificial intelligence within secured environment for dataset creation
Eur J Radiol Open, 13, 100582
DOI 10.1016/j.ejro.2024.100582, PubMed 39041057
Correction to: Local Tumour Control Following Microwave Ablation: Protocol for the Prospective Observational CIEMAR Study
Cardiovasc Intervent Radiol, 47 (1), 130-131
DOI 10.1007/s00270-023-03618-4, PubMed 38010508
Postoperative Hyperamylasemia (POH) is an Early Predictor of Pancreatic Fistula Occurrence and Severity after Distal Pancreatectomy: Results from a European Multicentric Study
Ann Surg (in press)
DOI 10.1097/SLA.0000000000006222, PubMed 38305035
Complete response of metastatic microsatellite-stable BRAF V600E colorectal cancer to first-line oxaliplatin-based chemotherapy and immune checkpoint blockade
Oncoimmunology, 13 (1), 2372886
DOI 10.1080/2162402X.2024.2372886, PubMed 38952672
The differential benefit of laparoscopic over open minor liver resection for lesions situated in the anterolateral or posterosuperior segments
Hepatobiliary Surg Nutr, 13 (4), 604-615
DOI 10.21037/hbsn-23-494, PubMed 39175716
Robotic Versus Laparoscopic Liver Resection in Various Settings: An International Multicenter Propensity Score Matched Study of 10.075 Patients
Ann Surg, 280 (1), 108-117
DOI 10.1097/SLA.0000000000006267, PubMed 38482665
Publications 2023
Difficult procedures, better outcomes
Hepatobiliary Surg Nutr, 12 (4), 634-636
DOI 10.21037/hbsn-23-302, PubMed 37600980
Impact of neoadjuvant chemotherapy on the difficulty and outcomes of laparoscopic and robotic major liver resections for colorectal liver metastases: A propensity-score and coarsened exact-matched controlled study
Eur J Surg Oncol, 49 (7), 1209-1216
DOI 10.1016/j.ejso.2023.01.014, PubMed 36774216
MRI in addition to CT in patients scheduled for local therapy of colorectal liver metastases (CAMINO): an international, multicentre, prospective, diagnostic accuracy trial
Lancet Oncol, 25 (1), 137-146
DOI 10.1016/S1470-2045(23)00572-7, PubMed 38081200
Propensity Score-Matching Analysis Comparing Robotic Versus Laparoscopic Limited Liver Resections of the Posterosuperior Segments: An International Multicenter Study
Ann Surg, 279 (2), 297-305
DOI 10.1097/SLA.0000000000006027, PubMed 37485989
Learning Curves of Minimally Invasive Distal Pancreatectomy in Experienced Pancreatic Centers
JAMA Surg, 158 (9), 927-933
DOI 10.1001/jamasurg.2023.2279, PubMed 37378968
A PRRX1 Signature Identifies TIM-3 and VISTA as Potential Immune Checkpoint Targets in a Subgroup of Microsatellite Stable Colorectal Cancer Liver Metastases
Cancer Res Commun, 3 (2), 235-244
DOI 10.1158/2767-9764.CRC-22-0295, PubMed 36968142
Local Tumour Control Following Microwave Ablation: Protocol for the Prospective Observational CIEMAR Study
Cardiovasc Intervent Radiol, 47 (1), 121-129
DOI 10.1007/s00270-023-03573-0, PubMed 37884801
The multi-societal European consensus on the terminology, diagnosis and management of patients with synchronous colorectal cancer and liver metastases: an E-AHPBA consensus in partnership with ESSO, ESCP, ESGAR, and CIRSE
HPB (Oxford), 25 (9), 985-999
DOI 10.1016/j.hpb.2023.05.360, PubMed 37471055
Multisocietal European consensus on the terminology, diagnosis, and management of patients with synchronous colorectal cancer and liver metastases: an E-AHPBA consensus in partnership with ESSO, ESCP, ESGAR, and CIRSE
Br J Surg, 110 (9), 1161-1170
DOI 10.1093/bjs/znad124, PubMed 37442562
Transatlantic registries for minimally invasive liver surgery: towards harmonization
Surg Endosc, 37 (5), 3580-3592
DOI 10.1007/s00464-022-09765-y, PubMed 36624213
Correction: Transatlantic registries for minimally invasive liver surgery: towards harmonization
Surg Endosc, 37 (5), 4112
DOI 10.1007/s00464-023-09887-x, PubMed 36717429
Publications 2022
Laparoscopic parenchyma-sparing liver resection for large (≥ 50 mm) colorectal metastases
Surg Endosc, 37 (1), 225-233
DOI 10.1007/s00464-022-09493-3, PubMed 35922606
Reply to Letter to the Editor: Portal Vein Embolization with Vascular Plug and n-Butyl Cyanoacrylate: Are We There Yet?
Cardiovasc Intervent Radiol, 45 (10), 1549-1550
DOI 10.1007/s00270-022-03239-3, PubMed 36008573
Comparison between the difficulty of laparoscopic limited liver resections of tumors located in segment 7 versus segment 8: An international multicenter propensity-score matched study
J Hepatobiliary Pancreat Sci, 30 (2), 177-191
DOI 10.1002/jhbp.1210, PubMed 35758911
Generic surgical process model for minimally invasive liver treatment methods
Sci Rep, 12 (1), 16684
DOI 10.1038/s41598-022-19891-1, PubMed 36202857
Minimally Invasive Pancreatoduodenectomy: Contemporary Practice, Evidence, and Knowledge Gaps
Oncol Ther, 10 (2), 301-315
DOI 10.1007/s40487-022-00203-6, PubMed 35829933
Defining Global Benchmarks for Laparoscopic Liver Resections: An International Multicenter Study
Ann Surg, 277 (4), e839-e848
DOI 10.1097/SLA.0000000000005530, PubMed 35837974
T cell receptor repertoire sequencing reveals chemotherapy-driven clonal expansion in colorectal liver metastases
Gigascience, 12
DOI 10.1093/gigascience/giad032, PubMed 37161965
A comprehensive framework for analysis of microRNA sequencing data in metastatic colorectal cancer
NAR Cancer, 4 (1), zcab051
DOI 10.1093/narcan/zcab051, PubMed 35047825
Laparoscopic versus open liver resection for intrahepatic cholangiocarcinoma: a multicenter propensity score-matched study
Scand J Gastroenterol, 58 (5), 489-496
DOI 10.1080/00365521.2022.2143724, PubMed 36373379
Publications 2021
Survival after laparoscopic versus open resection for colorectal liver metastases
Hepatobiliary Surg Nutr, 10 (1), 134-135
DOI 10.21037/hbsn-20-796, PubMed 33575305
Evolution of laparoscopic liver surgery: 20-year experience of a Norwegian high-volume referral center
Surg Endosc, 36 (5), 2818-2826
DOI 10.1007/s00464-021-08570-3, PubMed 34036419
Long-term oncological outcomes after laparoscopic parenchyma-sparing redo liver resections for patients with metastatic colorectal cancer: a European multi-center study
Surg Endosc, 36 (5), 3374-3381
DOI 10.1007/s00464-021-08655-z, PubMed 34462867
Portal Vein Embolization Using N-Butyl Cyanoacrylate-Glue: What Impact Does a Central Vascular Plug Have?
Cardiovasc Intervent Radiol, 45 (4), 450-458
DOI 10.1007/s00270-021-03014-w, PubMed 34907454
Low Concordance Between T-Cell Densities in Matched Primary Tumors and Liver Metastases in Microsatellite Stable Colorectal Cancer
Front Oncol, 11, 671629
DOI 10.3389/fonc.2021.671629, PubMed 34178659
Comparing practice and outcome of laparoscopic liver resection between high-volume expert centres and nationwide low-to-medium volume centres
Br J Surg, 108 (8), 983-990
DOI 10.1093/bjs/znab096, PubMed 34195799
Clinical added value of MRI to CT in patients scheduled for local therapy of colorectal liver metastases (CAMINO): study protocol for an international multicentre prospective diagnostic accuracy study
BMC Cancer, 21 (1), 1116
DOI 10.1186/s12885-021-08833-1, PubMed 34663243
Sarcopenia predicts reduced liver growth and reduced resectability in patients undergoing portal vein embolization before liver resection - A DRAGON collaborative analysis of 306 patients
HPB (Oxford), 24 (3), 413-421
DOI 10.1016/j.hpb.2021.08.818, PubMed 34526229
Publications 2020
Long-Term Oncologic Outcomes After Laparoscopic Versus Open Resection for Colorectal Liver Metastases : A Randomized Trial
Ann Intern Med, 174 (2), 175-182
DOI 10.7326/M20-4011, PubMed 33197213
Till death do us part: the effect of marital status on health care utilization and costs at end-of-life. A register study on all colorectal cancer decedents in Norway between 2009 and 2013
BMC Health Serv Res, 20 (1), 115
DOI 10.1186/s12913-019-4794-6, PubMed 32054492
Mixed reality - new image technology in experimental use
Tidsskr Nor Laegeforen, 140 (17)
DOI 10.4045/tidsskr.20.0498, PubMed 33231396
Neoadjuvant chemotherapy is associated with a transient increase of intratumoral T-cell density in microsatellite stable colorectal liver metastases
Cancer Biol Ther, 21 (5), 432-440
DOI 10.1080/15384047.2020.1721252, PubMed 32098573
Response to the Comment on "Epidural Analgesia (TEA) vs. IV-PCA After Open Liver Surgery"
Ann Surg, 271 (5), e126-e127
DOI 10.1097/SLA.0000000000003684, PubMed 31800498
Laparoscopic liver resection with simultaneous diaphragm resection
Ann Transl Med, 8 (5), 214
DOI 10.21037/atm.2020.01.62, PubMed 32309361
War in the time of COVID-19: humanitarian catastrophe in Nagorno-Karabakh and Armenia
Lancet Glob Health, 9 (3), e243-e244
DOI 10.1016/S2214-109X(20)30510-6, PubMed 33253632
Towards a Video Quality Assessment based Framework for Enhancement of Laparoscopic Videos
PROC SPIE, 11316, 113160P
DOI 10.1117/12.2549266
Use of mixed reality for surgery planning: Assessment and development workflow
J Biomed Inform, 112S, 100077
DOI 10.1016/j.yjbinx.2020.100077, PubMed 34417006
Publications 2019
Laparoscopic versus open liver resection in the posterosuperior segments: a sub-group analysis from the OSLO-COMET randomized controlled trial
HPB (Oxford), 21 (11), 1485-1490
DOI 10.1016/j.hpb.2019.03.358, PubMed 30962136
Laparoscopic liver resection for non-colorectal non-neuroendocrine metastases: perioperative and oncologic outcomes
World J Surg Oncol, 17 (1), 156
DOI 10.1186/s12957-019-1700-y, PubMed 31484583
Multicentre analysis of the learning curve for laparoscopic liver resection of the posterosuperior segments
Br J Surg, 106 (11), 1512-1522
DOI 10.1002/bjs.11286, PubMed 31441944
RAS Mutation Clinical Risk Score to Predict Survival After Resection of Colorectal Liver Metastases
Ann Surg, 269 (1), 120-126
DOI 10.1097/SLA.0000000000002319, PubMed 28549012
A systematic review and meta-analysis comparing the short- and long-term outcomes for laparoscopic and open liver resections for liver metastases from colorectal cancer
Surg Endosc, 34 (1), 349-360
DOI 10.1007/s00464-019-06774-2, PubMed 30989374
Quality of life from a randomized trial of laparoscopic or open liver resection for colorectal liver metastases
Br J Surg, 106 (10), 1372-1380
DOI 10.1002/bjs.11227, PubMed 31322735
Intravenous Patient-controlled Analgesia Versus Thoracic Epidural Analgesia After Open Liver Surgery: A Prospective, Randomized, Controlled, Noninferiority Trial
Ann Surg, 270 (2), 193-199
DOI 10.1097/SLA.0000000000003209, PubMed 30676382
Laparoscopic Multiple Parenchyma-sparing Concomitant Liver Resections for Colorectal Liver Metastases
Surg Laparosc Endosc Percutan Tech, 29 (3), 187-193
DOI 10.1097/SLE.0000000000000606, PubMed 30520815
Use of mixed reality for improved spatial understanding of liver anatomy
Minim Invasive Ther Allied Technol, 29 (3), 154-160
DOI 10.1080/13645706.2019.1616558, PubMed 31116053
The effect of intraoperative imaging on surgical navigation for laparoscopic liver resection surgery
Sci Rep, 9 (1), 18687
DOI 10.1038/s41598-019-54915-3, PubMed 31822701
Publications 2018
Cost-effectiveness of liver transplantation in patients with colorectal metastases confined to the liver
Br J Surg, 106 (1), 132-141
DOI 10.1002/bjs.10962, PubMed 30325494
Survival after resection of colorectal liver metastases in octogenarians and sexagenarians compared to their respective age-matched national population
Hepatobiliary Surg Nutr, 7 (4), 234-241
DOI 10.21037/hbsn.2017.09.03, PubMed 30221151
Laparoscopic Versus Open Resection for Colorectal Liver Metastases: The OSLO-COMET Randomized Controlled Trial
Ann Surg, 267 (2), 199-207
DOI 10.1097/SLA.0000000000002353, PubMed 28657937
Response: The OSLO-COMET Randomized Controlled Trial of Laparoscopic Versus Open Liver Resection for Colorectal Metastases
Ann Surg, 268 (6), e69-e70
DOI 10.1097/SLA.0000000000002646, PubMed 29303812
Contemporary practice and short-term outcomes after liver resections in a complete national cohort
Langenbecks Arch Surg, 404 (1), 11-19
DOI 10.1007/s00423-018-1737-3, PubMed 30519886
An early assessment for the use of HoloLens during laparoscopic liver resections
HPB, 20, S239
PublikaID 331
The European Experience in Laparoscopic Pancreatic Resections
J Am Coll Surg, 226 (1), 104
DOI 10.1016/j.jamcollsurg.2017.10.003, PubMed 29274644
Publications 2017
Laparoscopic liver resection for metastatic melanoma
Surg Endosc, 32 (3), 1470-1477
DOI 10.1007/s00464-017-5834-0, PubMed 28916919
Superior mesenteric artery syndrome: quality of life after laparoscopic duodenojejunostomy
Clin Case Rep, 6 (2), 323-329
DOI 10.1002/ccr3.1242, PubMed 29445471
Evolution of Laparoscopic Liver Surgery from Innovation to Implementation to Mastery: Perioperative and Oncologic Outcomes of 2,238 Patients from 4 European Specialized Centers
J Am Coll Surg, 225 (5), 639-649
DOI 10.1016/j.jamcollsurg.2017.08.006, PubMed 28838869
Laparoscopic Resection for Liver Malignancies: Do the Elderly Benefit More?
J Invest Surg, 32 (1), 83-84
DOI 10.1080/08941939.2017.1385664, PubMed 29115882
A novel method for planning liver resections using deformable Bézier surfaces and distance maps
Comput Methods Programs Biomed, 144, 135-145
DOI 10.1016/j.cmpb.2017.03.019, PubMed 28494998
Molecular signatures reflecting microenvironmental metabolism and chemotherapy-induced immunogenic cell death in colorectal liver metastases
Oncotarget, 8 (44), 76290-76304
DOI 10.18632/oncotarget.19350, PubMed 29100312
Publications 2016
Validation of clinical risk scores for laparoscopic liver resections of colorectal liver metastases: A 10-year observed follow-up study
J Surg Oncol, 114 (6), 757-763
DOI 10.1002/jso.24391, PubMed 27471127
Role of laparoscopic enucleation in the treatment of pancreatic lesions: case series and case-matched analysis
Surg Endosc, 31 (5), 2310-2316
DOI 10.1007/s00464-016-5233-y, PubMed 27620912
Publications 2015
The impact of laparoscopic versus open colorectal cancer surgery on subsequent laparoscopic resection of liver metastases: A multicenter study (vol 157, pg 1046, 2015)
Surgery, 158 (5), 1450
DOI 10.1016/j.surg.2015.06.020
The impact of laparoscopic versus open colorectal cancer surgery on subsequent laparoscopic resection of liver metastases: A multicenter study
Surgery, 157 (6), 1046-54
DOI 10.1016/j.surg.2015.01.007, PubMed 25835216
Inflammatory Response After Laparoscopic Versus Open Resection of Colorectal Liver Metastases: Data From the Oslo-CoMet Trial
Medicine (Baltimore), 94 (42), e1786
DOI 10.1097/MD.0000000000001786, PubMed 26496309
Open versus laparoscopic liver resection for colorectal liver metastases (the Oslo-CoMet Study): study protocol for a randomized controlled trial
Trials, 16, 73
DOI 10.1186/s13063-015-0577-5, PubMed 25872027
Publications 2014
Laparoscopic surgery for solid pseudopapillary tumor of the pancreas
JSLS, 18 (2), 236-42
DOI 10.4293/108680813X13753907291837, PubMed 24960486
Publications 2013
Margin status after laparoscopic resection of colorectal liver metastases: does a narrow resection margin have an influence on survival and local recurrence?
HPB (Oxford), 16 (9), 822-9
DOI 10.1111/hpb.12204, PubMed 24308605
Publications 2005
[Antibiotic prophylaxis in acute pancreatitis--is the evidence good enough?]
Tidsskr Nor Laegeforen, 125 (10), 1323-5
PubMed 15909002