P. Nyström

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Proposed definitions for diagnosis, severity scoring, stratification, and outcome for trials on intraabdominal infection

W. Knaus, C. Ohmann, J. Meakins, 1990, World Journal of Surgery.

Granulocyte-colony stimulating factor in the prevention of postoperative infectious complications and sub-optimal recovery from operation in patients with colorectal cancer and increased preoperative risk (ASA 3 and 4)¶ Protocol of a controlled clinical trial developed by consensus of an internation

J. Wyatt, H. Sitter, M. Rothmund, 2001, Inflammation Research.

THE MICROBIOLOGICAL SWAB SAMPLER ‐ A QUANTITATIVE EXPERIMENTAL INVESTIGATION

P. Nyström, 1978, Acta pathologica et microbiologica Scandinavica. Section B, Microbiology.

Defunctioning Stoma in Low Anterior Resection With Colonic Pouch for Rectal Cancer

P. Nyström, R. Sjödahl, S. Goldman, 2002, Diseases of the colon and rectum.

QUANTIFICATION OF BACTERIA IN OPERATION WOUNDS – AN EXPERIMENTAL INVESTIGATION WITH SWAB SAMPLING IN PIGS

P. Nyström, 1980, Acta pathologica et microbiologica Scandinavica. Section B, Microbiology.

Canadian Association of University Surgeons annual symposium: Continuity of care: Toronto, Ontario, Sep. 6, 2007.

P. Nyström, B. Taylor, S. Hamilton, 2009, Canadian journal of surgery. Journal canadien de chirurgie.

Biapenem versus imipenem/cilastatin in the treatment of complicated intra-abdominal infections: report from a Swedish Study Group.

B. Bäckstrand, P. Nyström, C. Nord, 1996, Scandinavian journal of infectious diseases.

Use of air enema radiography to assess depth of ulceration during acute attacks of ulcerative colitis

P. Nyström, E. Lindström, L. Franzén, 1996, The Lancet.

Primary versus staged resection for acute obstructing colorectal carcinoma

P. Nyström, R. Sjödahl, T. Franzen, 1992, The British journal of surgery.

Anaesthetic technique does not influence postoperative bowel function: a comparison of propofol, nitrous oxide and isoflurane

S. Kalman, P. Nyström, C. Eintrei, 1992, Canadian journal of anaesthesia = Journal canadien d'anesthesie.

Physiologic characteristics of straight and colonic J-pouch anastomoses after rectal excision for cancer

P. Nyström, R. Sjödahl, O. Hallböök, 1997, Diseases of the colon and rectum.

Multicentre randomized clinical trial of mechanical bowel preparation in elective colonic resection

L. Påhlman, P. Nyström, E. Nilsson, 2007, The British journal of surgery.

Meropenem versus imipenem/cilastatin in the treatment of intra-abdominal infections.

B. Bäckstrand, P. Nyström, C. Nord, 1995, The Journal of antimicrobial chemotherapy.

Piperacillin-tazobactam versus imipenem-cilastatin for treatment of intra-abdominal infections

B. Bäckstrand, P. Nyström, T. Skau, 1992, Antimicrobial Agents and Chemotherapy.

Author's reply: Randomized clinical trial of symptom control after stapled anopexy or diathermy excision for haemorrhoid prolapse (Br J Surg 2010; 97: 167–176)

P. Nyström, 2010 .

Thiopurine Therapy Is Associated with Postoperative Intra-Abdominal Septic Complications in Abdominal Surgery for Crohn’s Disease

P. Nyström, G. Olaison, R. Sjödahl, 2009, Diseases of the colon and rectum.

Epidemiology, diagnosis and treatment of systemic Candida infection in surgical patients under intensive care

J. Vincent, E. Anaissie, D. Pittet, 1998, Intensive Care Medicine.

Surgery for Crohn Colitis Over a Twenty-Eight-Year Period: Fewer Stomas and the Replacement of Total Colectomy by Segmental Resection

P. Nyström, G. Bodemar, G. Olaison, 2002, Scandinavian journal of gastroenterology.

Low symptomatic load in Crohn's disease with surgery and medicine as complementary treatments.

P. Nyström, G. Bodemar, G. Olaison, 1998, Scandinavian journal of gastroenterology.

Clusters of acute appendicitis: further evidence for an infectious aetiology.

P. Nyström, R. Andersson, G. Olaison, 1995, International journal of epidemiology.

Computed tomography of the appendix.

P. Nyström, G. Olaison, R. Andersson, 1998, The New England journal of medicine.

The kinetics of peritoneal clearance of Escherichia coli and Bacteroides fragilis and participating defense mechanisms.

P. Nyström, T. Skau, O. Stendahl, 1986, Archives of surgery.

Analysis of outcome of Lichtenstein groin hernia repair by surgeons-in-training versus a specialized surgeon

P. Nyström, A. Kald, S. Smeds, 2011, Hernia.

Intraoperative enteroscopy in Crohn's disease

P. Nyström, G. Olaison, R. Sjödahl, 1993, The British journal of surgery.

Safety of the temporary loop ileostomy

P. Nyström, R. Sjödahl, P. Matthiessen, 2002, Colorectal disease : the official journal of the Association of Coloproctology of Great Britain and Ireland.

Diagnostic Value of Disease History, Clinical Presentation, and Inflammatory Parameters of Appendicitis

P. Nyström, R. Andersson, G. Olaison, 1999, World Journal of Surgery.

Genetic aspects of colorectal cancer: the surgeon's view.

P. Nyström, R. Sjödahl, 1996, Scandinavian journal of gastroenterology. Supplement.

Stapled haemorrhoidopexy: a consensus position paper by an international working party – indications, contra‐indications and technique

P. Nyström, P. Marcello, M. Loudon, 2003, Colorectal disease : the official journal of the Association of Coloproctology of Great Britain and Ireland.

Severity of illness in intra-abdominal infection. A comparison of two indexes.

P. Nyström, C. Carlsson, T. Skau, 1985, Archives of surgery.

Bacterial translocation during acute pancreatitis in rats.

P. Nyström, L. Franzén, I. Ihse, 1993, The European journal of surgery = Acta chirurgica.

Bacterial peritonitis with hyperamylasemia in the absence of ultrastructural changes of pancreas

P. Nyström, L. Franzén, I. Ihse, 1993, International journal of pancreatology : official journal of the International Association of Pancreatology.

The resorption of FITC-dextran 10,000 from the peritoneum in different modifications of bile-induced acute pancreatitis and in bacterial peritonitis

P. Nyström, I. Ihse, E. Tarpila, 1991, International journal of pancreatology : official journal of the International Association of Pancreatology.

Intra-operative saline irrigation of the peritoneal cavity in experimental post-traumatic peritonitis.

S. Lennquist, P. Nyström, L. Johansson, 1983, Acta chirurgica Scandinavica.

Granulocyte-colony stimulating factor in the prevention of postoperative infectious complications and sub-optimal recovery from operation in patients with colorectal cancer and increased preoperative risk (ASA 3 and 4)¶ Protocol for a controlled clinical trial developed by consensus of an internati

M. Rothmund, R. Lefering, W. Lorenz, 2001, Inflammation Research.

[Laparoscopic sigmoid resection in diverticulitis].

P. Nyström, A. Kald, 1999, Zentralblatt fur Chirurgie.

Endoanal ultrasonography may distinguish Crohn’s anal fistulae from cryptoglandular fistulae in patients with Crohn’s disease: a cross-sectional study

U. Gunnarsson, P. Nyström, K. Strigård, 2011, Techniques in Coloproctology.

Complications, surgical revision and quality of life with conventional and continent ileostomy.

P. Nyström, G. Olaison, R. Sjödahl, 1990, Acta chirurgica Scandinavica.

Randomized clinical trial of symptom control after stapled anopexy or diathermy excision for haemorrhoid prolapse

P. Nyström, N. Qvist, D. Raahave, 2010, The British journal of surgery.

Ten-year outcomes of a randomised trial of laparoscopic versus open surgery for colon cancer

J. Jeekel, G. Kazemier, E. Haglind, 2016, Surgical Endoscopy.

Grade of prolapse and symptoms of haemorrhoids are poorly correlated: result of a classification algorithm in 270 patients

P. Nyström, R. Gerjy, A. Lindhoff-Larson, 2008, Colorectal disease : the official journal of the Association of Coloproctology of Great Britain and Ireland.

Randomized clinical trial of stapled haemorrhoidopexy performed under local perianal block versus general anaesthesia

P. Nyström, R. Sjödahl, R. Gerjy, 2008, The British journal of surgery.

Long-term results after stapled haemorrhoidopexy for fourth-degree haemorrhoids: a prospective study with median follow-up of 6 years

P. Nyström, E. Zacharakis, I. Mantzoros, 2007, Techniques in Coloproctology.

Laparoscopic sigmoid resection for diverticular disease

P. Nyström, A. Kald, 1999 .

Audit of anal‐sphincter repair

P. Nyström, G. Morren, R. Sjödahl, 2001, Colorectal disease : the official journal of the Association of Coloproctology of Great Britain and Ireland.

Laparoscopic bowel mobilization combined with intraoperative colonoscopic polypectomy in patients with an inaccessible polyp of the colon

P. Nyström, A. Kald, B. Anderberg, 1997, Surgical Endoscopy.

A controlled trial of a plastic wound ring drape to prevent contamination and infection in colorectal surgery

P. Nyström, A. Broomé, H. Höjer, 1984, Diseases of the colon and rectum.

Effects of a plastic wound drape on contamination with enterobacteria and on infection after appendicectomy.

P. Nyström, L. Bröte, 1980, Acta chirurgica Scandinavica.

[Difficult to measure results and quality of surgical interventions but length of stay is an important variable].

P. Nyström, 2004, Lakartidningen.

Laparoscopic colorectal surgery in progress.

P. Nyström, R. Sjödahl, 2003, The European journal of surgery. Supplement. : = Acta chirurgica. Supplement.

Circular Stapler Anopexy For Prolapsing Haemorrhoids

P. Nyström, R. Sjödahl, 2002 .

Postoperative wound infection after appendicectomy. Evaluation of infection risk with qualitative and quantitative incisional wound culture.

P. Nyström, L. Bröte, 1981, Acta chirurgica Scandinavica.

Consensus conference on the stapled transanal rectal resection (STARR) for disordered defaecation

S. Wexner, A. Mellgren, D. Lomanto, 2006, Colorectal disease : the official journal of the Association of Coloproctology of Great Britain and Ireland.

Results of collagen plug occlusion of anal fistula: a multicentre study of 126 patients

P. Nyström, H. Oppelstrup, U. Gustafsson, 2014, Colorectal disease : the official journal of the Association of Coloproctology of Great Britain and Ireland.

Bacterial clearance and granulocyte response in experimental peritonitis.

L. Öhman, P. Nyström, T. Skau, 1986, The Journal of surgical research.

Long‐term results of stapled haemorrhoidopexy in a prospective single centre study of 153 patients with 1–6 years’ follow‐up

P. Nyström, K. Derwinger, R. Gerjy, 2012, Colorectal disease : the official journal of the Association of Coloproctology of Great Britain and Ireland.

Excision of residual skin tags during stapled anopexy does not increase postoperative pain

P. Nyström, R. Gerjy, 2007, Colorectal disease : the official journal of the Association of Coloproctology of Great Britain and Ireland.

Perianal Local Block for Stapled Anopexy

P. Nyström, K. Derwinger, R. Gerjy, 2006, Diseases of the colon and rectum.

Local perianal block for anal surgery

P. Nyström, K. Derwinger, R. Gerjy, 2004, Techniques in Coloproctology.

Surgical treatment of dorsocaudal dislocation of the vagina after excision of the rectum

P. Nyström, G. Olaison, R. Sjödahl, 1990, Diseases of the Colon & Rectum.

Ethnic differences in incidence of stroke: prospective study with stroke register

P. Nyström, R. Andersson, G. Olaison, 1999 .

A comparison of propofol and isoflurane anaesthesia: the need for ephedrine and glycopyrrolate.

S. Kalman, P. Nyström, H. Granfeldt, 1995, European journal of anaesthesiology.

Incisional infection after colorectal surgery in obese patients.

P. Nyström, H. Höjer, L. Ling, 1987, Acta chirurgica Scandinavica.

Massive Lower Gastrointestinal Bleeding

P. Nyström, 2010 .

H. Sitter, K. Klose, M. Rothmund, 2001, Inflammation Research.

Repeated Clinical and Laboratory Examinations in Patients with an Equivocal Diagnosis of Appendicitis

P. Nyström, R. Andersson, G. Olaison, 2000, World Journal of Surgery.

Elimination patterns of Escherichia coli and bacteroides fragilis from the peritoneal cavity. Studies with experimental peritonitis in pigs.

P. Nyström, T. Skau, 1983, Acta chirurgica Scandinavica.

Femoral nerve neurilemmoma in the iliac fossa.

P. Nyström, G. Olaison, R. Sjödahl, 1993, Annales chirurgiae et gynaecologiae.

Intravenous versus intraperitoneal morphine before surgery to provide postoperative pain relief

S. Kalman, P. Nyström, C. Eintrei, 1997, Acta anaesthesiologica Scandinavica.

Perioperative prophylaxis with granulocyte colony-stimulating factor (G-CSF) in high-risk colorectal cancer patients for an improved recovery: A randomized, controlled trial.

J. Wyatt, H. Sitter, M. Rothmund, 2007, Surgery.

The systemic inflammatory response syndrome: definitions and aetiology.

P. Nyström, P O Nyström, 1998, The Journal of antimicrobial chemotherapy.

Intra-operative irrigation of the peritoneal cavity with ampicillin in experimental posttraumatic peritonitis.

S. Lennquist, P. Nyström, T. Skau, 1984, Acta chirurgica Scandinavica.

The systemic inflammatory response syndrome: definitions and aetiology.

P. Nyström, Per-Olof Nyström, 1998, The Journal of antimicrobial chemotherapy.

Outcome of intra-abdominal infection in pigs depends more on host responses than on microbiology.

P. Nyström, B. Jönsson, T. Skau, 1993, The European journal of surgery = Acta chirurgica.

Infection and Trauma of the Rectum and Anus

P. Nyström, 2003 .

An evidence-based treatment algorithm for anal fissure

M. Pescatori, P. Nyström, M. Spyrou, 2006, Techniques in Coloproctology.

Transition from contamination to infection: implications in colonic surgery.

P. Nyström, 1996, The European journal of surgery. Supplement. : = Acta chirurgica. Supplement.

The systemic inflammatory response syndrome: definitions and aetiology.

P. Nyström, 1998, The Journal of antimicrobial chemotherapy.

Outcome of 132 Consecutive Reconstructive Operations for Intestinal Fistula—Staged Operation Without Primary Anastomosis Improved Outcome in Retrospective Analysis

P. Nyström, G. Olaison, R. Sjödahl, 2013, Scandinavian journal of surgery : SJS : official organ for the Finnish Surgical Society and the Scandinavian Surgical Society.