Publications by authors named "Olaison G"

Purpose: To investigate the ability of a "slowly cutting, loose seton ligature and staged fistulotomy" to heal perianal fistulas, the time needed with the seton ligature, recurrence rate, influence on anal continence, health-related quality of life (HRQoL), and patient satisfaction.

Methods: Observational single-center study. We reviewed the medical records of all patients with primary surgeries from January 1, 2009, to December 31, 2018.

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Background: Operation for hemorrhoidal disease is one of the most common operations performed globally. However, we know little about the impact of the disease on health-related quality of life (HRQoL), or the importance of the observed clinical and anatomical changes.

Method: This was a single-center cross-sectional and cohort study.

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Haemorrhoidal disease (HD) affects millions of people around the world and for most it is a recurring problem. Increasingly, clinicians broaden their focus on the patient's experiences with haemorrhoidal symptoms, including their impact on daily life. The patient's experience can be assessed using a patient-reported outcome measure (PROM).

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Background: There is limited evidence on the long-term efficacy of transanal hemorrhoidal dearterialization compared with hemorrhoidectomy. Most studies investigated short-term effects with postoperative pain as the primary outcome. Being a benign disease, the long-term goal of treatment for hemorrhoids is the resolution of symptoms and improvement of quality of life.

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Background: There are no adequately validated tools to evaluate symptoms or disease-specific health-related quality of life in hemorrhoidal disease.

Objective: The purpose of this study was to assess validity, reliability, and responsiveness of a symptom score of patient-reported pain, itching, bleeding, soiling, and prolapse (Hemorrhoidal Disease Symptom Score). In addition, the study set out to assess reliability and responsiveness of an instrument to measure health-related quality of life in patients with hemorrhoids (Short Health ScaleHD), with 1 item in its 4 dimensions: symptom load, functional status, disease-specific worries, and general well-being.

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Background And Aims: The importance of efficient and safe treatment of Crohn's disease is highlighted by its chronicity. Both medical and surgical treatments have shown good results in the symptomatic control of limited ileocaecal Crohn's disease. The aim of this study was to compare medical treatment with surgical treatment of ileocaecal Crohn's disease.

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Introduction: Tumour necrosis factor α (TNF-α) plays a role in the immune defence, angiogenesis and collagen synthesis. Inhibition of these pathways may increase the risk of infections and impair wound healing in patients after surgery. Biologic treatments including anti-TNF-α agents are increasingly used in the treatment of inflammatory bowel disease.

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Background: The diagnosis of appendicitis is difficult and resource consuming. New inflammatory markers have been proposed for the diagnosis of appendicitis, but their utility in combination with traditional diagnostic variables has not been tested. Our objective is to explore the potential of new inflammatory markers for improving the diagnosis of appendicitis.

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Background: Patients with Crohn's disease treated with anti-tumor necrosis factor alpha agents may have an increased risk of surgical complications.

Objective: We assessed the effect of anti-tumor necrosis factor alpha on postoperative complications in patients with Crohn's disease undergoing abdominal surgery.

Data Sources: Studies were identified through electronic and manual searches.

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Aim: To study factors that influenced healing and survival after attempted closure of enterocutaneous fistula.

Material And Methods: Retrospective analysis of prospective data concerning 101 patients operated on 132 instances for 110 enterocutaneous fistulae at two hospitals.

Results: In all, 96 (87%) of the 110 fistulae healed and 92 (91%) patients survived.

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Objectives: There are concerns that biologic treatments or immunomodulation may negatively influence anastomotic healing. This study investigates the relationship between these treatments and anastomotic complications after surgery for Crohn's disease.

Patients And Methods: Retrospective study on 417 operations for Crohn's disease performed at four Danish hospitals in 2000-2007.

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Aim: The aim of this retrospective study of ileocolonic resection in patients with Crohn's disease was to compare the outcome of primary anastomosis with that of split stoma and delayed anastomosis in a high-risk setting.

Method: From 1995 to 2006, 132 patients had 146 operations for ileocolonic Crohn's disease. Preoperative data, including risk factors for complications, were obtained from a prospectively registered database.

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Background: Increasing circumstantial evidence suggests that not all patients with appendicitis will progress to perforation and that appendicitis that resolves may be a common event. Based on this theory and on indications of aberrant regulation of inflammation in gangrenous appendicitis, we hypothesized that phlegmonous and gangrenous appendicitis are different entities with divergent immunoregulation.

Methods: Blood samples were collected from patients with gangrenous appendicitis (n = 16), phlegmonous appendicitis (n = 21), and nonspecific abdominal pain (n = 42).

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Purpose: Thiopurines are important as maintenance therapy in Crohn's disease, but there have been concerns whether thiopurines increase the risk for anastomotic complications. The present study was performed to assess whether thiopurines alone, or together with other possible risk factors, are associated with postoperative intra-abdominal septic complications after abdominal surgery for Crohn's disease.

Methods: Prospectively registered data regarding perioperative factors were collected at a single tertiary referral center from 1989 to 2002.

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Background: Leukocyte scintigraphy is a noninvasive investigation to assess inflammation. We evaluated the utility of labeled leukocytes to detect small bowel inflammation and disease complications in Crohn's disease and compared it to whole small bowel enteroscopy and laparotomy findings.

Methods: Scintigraphy with technetium-99m exametazime-labeled leukocytes was prospectively performed in 48 patients with Crohn's disease a few days before laparotomy; 41 also had an intraoperative small bowel enteroscopy.

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Objective: Recurrence of Crohn's disease (CD) after surgery is common. Azathioprine/6-mercaptopurine (Aza/6-MP) is effective in controlling medically induced remission but, so far, has only been sparsely investigated after surgically induced remission. This study comprises a subset of CD patients considered to have an aggressive disease course and chosen for treatment with Aza postoperatively.

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Appendicitis is one of the most common and costly acute abdominal states of illnesses. Previous studies suggest two types of appendicitis which may be different entities, one which may resolve spontaneously and another that progresses to gangrene and perforation. Gangrenous appendicitis has a positive association to states of Th1 mediated immunity whereas Th2 associated immune states are associated with lower risk of appendicitis.

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Objective: Studies of mucosal permeability to protein antigens in humans are limited to in vitro techniques. The use of surgical specimens for such studies has major shortcomings. Endoscopic biopsies in Ussing chambers have been introduced as a means of studying secretion and transepithelial permeability, but have not been evaluated for studies of protein antigen uptake in human intestine.

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Collagenous colitis has become a more frequent diagnosis but the aetiology of this disease is still unknown. We describe a female patient with intractable collagenous colitis who was treated with a temporary loop ileostomy. She was followed clinically, histopathologically, and functionally by measuring mucosal permeability before surgery, after ileostomy, and after bowel reconstruction.

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Persisting enterocutaneous fistulae are difficult to treat. Mortality and morbidity are high. Patients are characterized by chronic infection, systemic inflammation, catabolism and impaired healing.

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Purpose: Anal pathology occurs in 20 to 80 percent of patients with Crohn's disease in which abscesses, fistulas, and fissures account for considerable morbidity. The etiology is not clearly defined, but altered anorectal pressures may play a role. This study was designed to investigate anorectal physiologic conditions in patients with Crohn's disease compared with healthy controls.

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Objective: All treatment in Crohn's disease, although palliative, aims at restoring full health. The objective of this study was to compare health-related quality of life and psychosocial conditions in patients with Crohn's proctocolitis with a general population.

Patients And Methods: One hundred and twenty-seven patients with Crohn's proctocolitis (median age 44 years, 44.

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