Fredrik Hjern

Om mig
Publikationer
CV
Populärvetenskap och samverkan

Om mig

Mina forskningsområden har varit relaterade kring kolorektal kirurgi, tex divertikelsjukdom, kolorektal cancer, perioperativ vård (ERAS) och proktologi

Forskningsbeskrivning

Divertikelsjukdom, kolorektal cancer, proktologi, perioperativ vård (ERAS)

Artiklar

Article: SCANDINAVIAN JOURNAL OF SURGERY. 2026;115(2):147-154
Enhanced recovery after surgery in diverticular disease: A multicenter comparison with colorectal cancer
Mahmood MW; Abraham-Nordling M; Lof-Granstrom A; Kiasat A; Hjern F; Gustafsson UO
Journal article: BJS-BRITISH JOURNAL OF SURGERY. 2024;111:znae175.062
Identification of diverticular disease in Swedish healthcare registers: A validation study
Mahmood WM; Schmidt PT; Olen O; Hellsing C; Hjern F; Abraham-Nordling M
Article: SCANDINAVIAN JOURNAL OF GASTROENTEROLOGY. 2024;59(2):176-182
Identification of diverticular disease in Swedish healthcare registers: a validation study
Mahmood MW; Schmidt PT; Olen O; Hellsing C; Hjern F; Abraham-Nordling M
Article: BJS OPEN. 2022;6(6):zrac140
The impact of hospital volume on survival in patients with locally advanced colonic cancer
Rosander E; Holm T; Sjovall A; Hjern F; Weibull CE; Nordenvall C
Article: BJS OPEN. 2022;6(1):zrab140
Comparison of four surgical approaches for rectal prolapse: multicentre randomized clinical trial
Smedberg J; Graf W; Pekkari K; Hjern F
Article: COLORECTAL DISEASE. 2021;23(9):2387-2398
Check the placeEmergency resection or diverting stoma followed by elective resection in patients with colonic obstruction due to locally advanced cancer: a national cohort study
Rosander E; Holm T; Sjovall A; Hjern F; Weibull CE; Nordenvall C
Article: EJSO. 2021;47(9):2398-2404
Preoperative multidisciplinary team assessment is associated with improved survival in patients with locally advanced colon cancer; a nationwide cohort study in 3157 patients
Rosander E; Holm T; Sjovall A; Hjern F; Weibull CE; Nordenvall C
Journal article: GASTROHEP. 2021;3(3):131-140
Mortality in patients hospitalised for diverticulitis in Sweden—A national population‐based cohort study
Granlund J; Sköldberg F; Hjern F; Discacciati A; Sandvei MS; Olén O; Schmidt PT
Article: EUROPEAN JOURNAL OF NUTRITION. 2019;58(6):2393-2400
High intake of dietary fibre from fruit and vegetables reduces the risk of hospitalisation for diverticular disease
Mahmood MW; Abraham-Nordling M; Hakansson N; Wolk A; Hjern F
Article: BJS-BRITISH JOURNAL OF SURGERY. 2019;106(7):930-939
Incidence and lifetime risk of hospitalization and surgery for diverticular disease
Skoldberg F; Granlund J; Discacciati A; Hjern F; Schmidt PT; Olen O
Article: ABDOMINAL RADIOLOGY. 2019;44(5):1712-1721
Morphological predictors for lymph node metastases on computed tomography in colon cancer
Rollven E; Blomqvist L; Oistamo E; Hjern F; Csanaky G; Abraham-Nordling M
Article: BJS-BRITISH JOURNAL OF SURGERY. 2019;106(6):790-798
Population-based study of surgical treatment with and without tumour resection in patients with locally recurrent rectal cancer
Westberg K; Palmer G; Hjern F; Holm T; Martling A
Article: COLORECTAL DISEASE. 2019;21(2):191-199
Robotic vs laparoscopic rectal tumour surgery: a cohort study
Asklid D; Gerjy R; Hjern F; Pekkari K; Gustafsson UO
Article: DISEASES OF THE COLON & RECTUM. 2018;61(4):454-460
Management and Outcome After Multivisceral Resections in Patients with Locally Advanced Primary Colon Cancer
Rosander E; Nordenvall C; Sjovall A; Hjern F; Holm T
Article: EJSO. 2018;44(1):100-107
Management and prognosis of locally recurrent rectal cancer - A national population-based study
Westberg K; Palmer G; Hjern F; Johansson H; Holm T; Martling A
Article: BJS-BRITISH JOURNAL OF SURGERY. 2017;104(13):1866-1873
Population-based study of factors predicting treatment intention in patients with locally recurrent rectal cancer
Westberg K; Palmer G; Hjern F; Nordenvall C; Johansson H; Holm T; Martling A
Article: ACTA RADIOLOGICA. 2017;58(11):1288-1293
The value of preoperative computed tomography combined with ultrasound in the investigation of small indeterminate liver lesions in patients with colorectal cancer
Abraham-Nordling M; Oistamo E; Josephson T; Hjern F; Blomqvist L
Article: EJSO. 2017;43(8):1433-1439
The impact of perioperative fluid therapy on short-term outcomes and 5-year survival among patients undergoing colorectal cancer surgery - A prospective cohort study within an ERAS protocol
Asklid D; Segelman J; Gedda C; Hjern F; Pekkari K; Gustafsson UO
Article: LANCET ONCOLOGY. 2017;18(3):336-346
Optimal fractionation of preoperative radiotherapy and timing to surgery for rectal cancer (Stockholm III): a multicentre, randomised, non-blinded, phase 3, non-inferiority trial
Erlandsson J; Holm T; Pettersson D; Berglund A; Cedermark B; Radu C; Johansson H; Machado M; Hjern F; Hallbook O; Syk I; Glimelius B; Martling A
Article: WORLD JOURNAL OF SURGICAL ONCOLOGY. 2016;14(1):232
Emergency management with resection versus proximal stoma or stent treatment and planned resection in malignant left-sided colon obstruction
Oistamo E; Hjern F; Blomqvist L; Falken Y; Pekkari K; Abraham-Nordling M
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Alla övriga publikationer

Letter: BJS OPEN. 2022;6(2):zrac043
Author response to: Comparison of four surgical approaches for rectal prolapse: multicentre randomized clinical trial
Smedberg J; Graf W; Pekkari K; Hjern F
Published conference paper: BJS-BRITISH JOURNAL OF SURGERY. 2012;99(4):532-539
Randomized clinical trial of antibiotics in acute uncomplicated diverticulitis
Chabok A; Pahlman L; Hjern F; Haapaniemi S; Smedh K
Published conference paper: BJS-BRITISH JOURNAL OF SURGERY. 2008;95(6):758-764
Outcome of younger patients with acute diverticulitis
Hjern F; Josephson T; Altman D; Holmstrom B; Johansson C
Doctoral thesis: 2006
Aspects on diverticular disease
Hjern F
Published conference paper: DISEASES OF THE COLON & RECTUM. 2006;49(1):28-35
Pelvic organ prolapse and urinary incontinence in women with surgically managed rectal prolapse: A population-based case-control study
Altman D; Zetterstrom J; Schultz I; Nordenstam J; Hjern F; Lopez A; Mellgren A
Published conference paper: DISEASES OF THE COLON & RECTUM. 2005;48(6):1233-1241
Functional and anatomic outcome after transvaginal rectocele repair using collagen mesh: A prospective study
Altman D; Zetterström J; López A; Anzén B; Falconer C; Hjern F; Mellgren A

Anställningar

Anknuten till Forskning, Kliniska vetenskaper, Danderyds sjukhus, Karolinska Institutet, 2023-2026

Examina och utbildning

Docent, kirurgi, Karolinska Institutet, 2012
MEDICINE DOKTORSEXAMEN, Institutionen för kliniska vetenskaper, Danderyds sjukhus, Karolinska Institutet, 2006
Läkarexamen, Karolinska Institutet, 1994

Handledning

Handledning till doktorsexamen
- Jannica Smedberg, Rectal prolapse - aspects of incidence, etiology and results after surgical treatment, 2022-
- Emma Rosander, Aspects of locally advanced colon cancer, 2022
- Karin Westberg, Locally recurrent rectal cancer-aspects on management, surgery and outcome, 2017

Om mig

Forskningsbeskrivning

Artiklar

Alla övriga publikationer

Anställningar

Examina och utbildning

Handledning

Handledning till doktorsexamen

Nyheter från KI

Kalenderhändelser från KI