Publications by authors named "Anders Drolsum"

Background: In Scandinavia, the incidence of cystic echinococcosis (CE) and alveolar echinococcosis (AE) is low and almost exclusively an imported disease following the trends of immigration. The aim of the study was to review available data on clinical management and outcome for patients treated at Oslo University Hospital, a referral centre for echinococcosis in Norway, with special emphasis on surgical treatment.

Methods: All patients admitted with echinococcosis between January 2000 and December 2020 were identified.

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Background: Following an episode of acute diverticulitis, surgical guidelines commonly advise routine colonic follow-up to rule out underlying malignancy. However, as a CT of the abdomen is frequently performed during clinical work-up, the routine need for colonic follow-up has become debated.

Purpose: To evaluate the need for routine CT colonography after an episode of CT-verified uncomplicated sigmoid diverticulitis to rule out underlying colorectal malignancy.

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Background: Both at short- and long-term follow-up we have reported major improvement of the symptom of constipation in patients treated with resection rectopexy for internal rectal intussusception (IRI). The aim was to study whether this improvement also persisted in a cohort of these patients after very long-term follow-up.

Methods: Observational and mainly prospective study of a cohort of 13 out of 48 patients with IRI who initially had ligament-preserving resection rectopexy with suture by laparoscopic ( = 11) or open ( = 2) technique.

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Background: Radiofrequency ablation (RFA) is widely used for treatment of colorectal liver metastases (CRLM).

Purpose: To evaluate the effect of increased experience in RFA of CRLM on morbidity and survival, and the trends in patient management and outcomes during the last decade.

Material And Methods: Hospital records of the initial 52 consecutive patients who underwent RFA (56 procedures/70 lesions) were retrospectively reviewed.

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Background: The Norwegian Rectal Cancer Project was initated in 1993 with the aims of improving surgery, decreasing local recurrence rates, improving survival, and establishing a national rectal cancer registry. Here we present results from the Norwegian Colorectal Cancer Registry (NCCR) from 1993 to 2010.

Material And Methods: A total of 15 193 patients were diagnosed with rectal cancer in Norway 1993-2010, and were registered with clinical data regarding diagnosis, treatment, locoregional recurrences and distant metastases.

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Background: The radiographers' role in ultrasound (US) has been debated due to the operator-dependent aspect of diagnostic US. With standardized cine-loop ultrasound (SCUS) a reliable diagnosis can be achieved by reading SCUS independently from performing the procedure.

Purpose: To study the correlation between sonographic findings when SCUS is performed and read by a radiologist and when SCUS is performed by a radiographer and read by a radiologist, and to assess the radiologists' confidence when reading SCUS examinations performed by a radiographer.

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Background: One of the main disadvantages of conventional ultrasound is its operator dependency, which might impede the reproducibility of the sonographic findings. A new approach with cine-loops and standardized scan protocols can overcome this drawback.

Purpose: To compare abdominal ultrasound findings of immediate bedside reading by performing radiologist with offline reading by a non-performing radiologist, using standardized cine-loop sequences.

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Background and Aims. The optimal treatment of patients with internal rectal intussusception (IRI) is unresolved. The aim was to study the short- and long-term outcome of resection rectopexy in these patients.

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Background: Surgical treatment is the only option for long-term survival in patients with colorectal liver metastasis (CRLM). Contrast-enhanced CT and MRI are usually used for preoperative liver imaging. The initial surgical strategy for liver resection is based upon these findings.

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Background: Colorectal cancer is a frequent disease in Norway. New and improved surgical techniques and the implementation of adjuvant and neoadjuvant therapy have improved 5-year survival rates significantly. Accurate preoperative assessment of tumour extent is essential for choosing the appropriate therapeutic strategy, and thus for patient prognosis.

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Objective: To report on survival and complications after insertion of self-expandable stents in patients with malignant oesophageal stenosis.

Material And Methods: Data were gathered retrospectively from the medical records of 92 consecutive patients in the period 1994-2003. The study comprised 68 men and 24 women (median age 72 years, range 46-93 years) with stenosis from cancer of the oesophagus (n=61), the gastric cardia (n=26) and the lung (n=5), located mainly above (n=4) or below (n=62) the carina, or at the gastro-oesophageal junction (n=26).

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Background: In 1993, Ullevaal University Hospital started CT pelvimetry. The accuracy of CT pelvimetric measurements and a low fetal dose are very important. In our study we tested the accuracy of CT pelvimetry and measured the fetal dose and the effective dose to the mother.

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Background: The purpose of this study was to evaluate the results of surgery and stenting for operable and inoperable oesophageal cancer.

Material And Methods: Retrospective patient materials with resection (n = 65, 1983-2002) or stenting (n = 59, 1994-2003) for primary oesophageal cancer.

Results: Mortality after surgery was 11% and 15% of the patients were re-operated.

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Objective: Therapy resistance is an enduring problem in clinical hypertension. Our aims were to estimate: (1) the contribution of a low-renin status in therapy resistance; (2) whether such status could give a clue to more successful treatment; and (3) the contribution by adrenal cortical adenomas and by primary aldosteronism.

Setting: Patients were referred from general and internal medicine practices following written invitations and included consecutively.

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Objective: To study the effect of rectopexy and sigmoid resection (resection rectopexy) on symptoms in patients with internal rectal intussusception.

Design: Retrospective and prospective study.

Setting: University hospital, Norway.

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Introduction: Pregnancy is associated with an overall 5-10 fold increased risk of venous thromboembolism (VTE). The absolute risk is highest during and shortly after delivery. Although operative delivery further increases the risk of VTE, there is no consensus on thromboprophylaxis after an elective cesarean.

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Background: Internal rectal intussusception, usually occurring in women, causes constipation and incomplete evacuation of stool.

Materials And Methods: Twenty-one women and one man (median age 48) were operated with suture rectopexy and sigmoid resection. The patients were examined with anoscopy and defecography, and symptomatic outcome, patients' satisfaction and morbidity were evaluated.

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