B Ojerskog

University of Gothenburg, Goeteborg, Västra Götaland, Sweden

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Publications (14)32.1 Total impact

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    ABSTRACT: Mucosa biopsy specimens were obtained from 12 patients with continent ileostomy reservoirs constructed 15 to 19 years previously. Biopsies from normal ileal mucosa, taken from six other patients with no apparent bowel disease, served as controls. The specimens were processed for light and electron microscopy. The reservoir mucosae showed an increased amount of inflammatory cells, but there were no signs of dysplasia. In the goblet cells, sialomucins dominated over sulfomucins; in this respect no difference was found between reservoirs and controls. Morphometric studies showed an increase of mucus-storing goblet cells in the reservoir mucosae, both with regard to relative number and to volume density. The mitotic index was higher than normal in the reservoirs, but the relative number of the Paneth cells and the height of the villus epithelial cells were similar in the reservoirs and the controls. In the reservoirs, the surface amplification factors due to villi and to microvilli (near the villus tips) were reduced by some 29% and 20%, respectively, indicating villus hypotrophy. It is concluded that only minor morphologic changes appear in the ileal reservoir mucosa 15 to 19 years after construction. Morphometry provides a sensitive tool to demonstrate such changes in intestinal morphology.
    No preview · Article · Jan 1991 · Human Pathlogy
  • B Ojerskog · N G Kock · L O Nilsson · B M Philipson · C Ahrén
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    ABSTRACT: Thirty-six patients were evaluated after having continent ileostomies for 16 to 20 years. Follow-up included clinical examination, response to a questionnaire, blood tests, and radiologic studies of the gallbladder. In addition, reservoir biopsies from 15 patients were examined. The patients were in excellent general health, all but one having gained weight postoperatively. There was no increased risk for gallstone formation or for urinary tract stone development. Although 11 of the 36 patients had reservoirs that were not provided with a valve, 92 percent of all patients were continent. Working capacity was normal in most patients and no harmful effects of the reservoir were revealed by morphologic or biochemical studies. In conclusion, no deleterious long-term effects were found as a result of the continent ileostomy.
    No preview · Article · Apr 1990 · Diseases of the Colon & Rectum
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    B Ojerskog · H Andersson · I Bosaeus · H Brevinge · L O Nilsson
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    ABSTRACT: Total body water (TBW) and total body potassium (TBK) were studied in 40 ileostomists before (with conventional ileostomy) and one year after conversion to a continent ileostomy. Each patient acted as his own control. Total body water was determined by using an isotope dilution technique and TBK by counting the gamma radiation from the naturally present nuclide 40K in a whole body counter. Measured values of TBW and TBK were compared intraindividually (conventional versus continent ileostomy) and also with 'normal values' obtained from the same laboratory and based on a multiple regression analysis of data from 476 healthy controls. There was no evidence of water or potassium depletion in ileostomy patients, neither before nor after construction of the continent ileostomy.
    Preview · Article · Oct 1988 · Gut
  • B Ojerskog · T Hällström · N G Kock · H E Myrvold
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    ABSTRACT: In a prospective study the quality of life was evaluated in 31 consecutive patients before and after conversion from a conventional to a continent ileostomy. Patient expectations, immediate emotional reactions after the operation and attitudes at the time of the interview were more positive towards the continent ileostomy than the conventional ileostomy. An improved working capacity was affirmed after conversion to the continent ileostomy. Leisure activities and the quality of sexual life were most positively influenced by the continent ileostomy, whereas established family and social relations were not considerably influenced by either type of ileostomy. In conclusion the continent ileostomy improves the quality of life in patients requesting conversion from a conventional ileostomy.
    No preview · Article · Sep 1988 · International Journal of Colorectal Disease
  • B Ojerskog · N G Kock · B M Philipson · M Philipson
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    ABSTRACT: Patients undergoing surgical treatment for inflammatory disease of the intestine are often in their reproductive years. Therefore, it is highly relevant to study the influence of surgical treatment on later pregnancy and delivery. Reported herein are 28 patients with continent ileostomies who have carried 37 pregnancies to term. An increased urge to empty the ileostomy reservoir, especially in the late period of pregnancy, was noted by the majority of patients. About one-third of the patients reported some difficulties with intubation of the reservoir in late pregnancy but in only a few patients did these disturbances result in a revisional operation after delivery. Pregnancy was normal in most instances and only four premature childbirths occurred. All pregnancies resulted in live birth. Vaginal delivery was successful in the majority of the patients, cesarean section being chosen for obstetric reasons in nine instances. From this study, it is concluded that, in patients with a continent ileostomy, normal pregnancy and delivery can be expected. However, in a few instances, the ileostomy function may be disturbed, necessitating later revisional operations.
    No preview · Article · Aug 1988 · Surgery, gynecology & obstetrics
  • B Ojerskog · B M Philipson · M Philipson

    No preview · Article · Sep 1987 · Lakartidningen
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    ABSTRACT: Eighteen patients, who previously had been treated surgically for familial polyposis coli with proctocolectomy and a continent ileostomy were re-investigated with endoscopy and X-ray for gastric, duodenal and ileal polyps. Gastric and/or duodenal polyps were found in 6 patients and ileal polyps in 2. Altogether upper GI-polyps were found in 7 patients (39%). Most polyps were true adenomas. In one patient with large gastric adenomas, the severe dysplasia called for a gastric resection. It is obvious that familial polyposis may affect the whole gastro-intestinal tract, therefore necessitating regular surveillance of the upper GI-canal as well as the colon and rectum in patients with this hereditary affliction.
    No preview · Article · Jan 1987 · Acta chirurgica Scandinavica
  • N G Kock · H Brevinge · B M Philipson · B Ojerskog
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    ABSTRACT: Continent ileostomies were created in 435 patients in the period 1967-1984. Approximately 50% of the patients were provided with a continent ileostomy in connection with proctocolectomy and in the others a conventional ileostomy was converted to a continent ileostomy. In the majority of patients the indication for proctocolectomy was ulcerative colitis, but 64 patients with Crohn's disease were also included. There was a 1.6% operative mortality overall, but when the material was divided into two groups operated upon during two consecutive time periods, no mortality was recorded in 273 patients operated upon during the latter period. The non-fatal complication rate had also decreased from 23% in the early series to 8% in the group operated upon during the latter period. Revisional surgery because of malfunction of the nipple valve has consecutively decreased from 54% in the original series to less than 10% at the time of writing. Successful outcome of the ileostomy procedure, although revisional surgery was sometimes required, was recorded in 97% of 273 patients operated on during the period 1975-1984.
    No preview · Article · Feb 1986 · Annales chirurgiae et gynaecologiae
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    ABSTRACT: In this paper, an account is given of our experience with continent colostomy in man. In five patients, the end-sigmoidostomy was provided with an intussusception valve. Evacuation of the bowel by irrigation through a catheter was laborious and time-consuming and this method was abandoned. In another group of 30 patients, the cecum was isolated from the rest of the colon and its distal end was provided with an intussusception valve. Of the 30 patients, eight were later given continent ileostomies, two were converted to conventional sigmoidostomies, and one patient with fecal incontinence preferred to have intestinal continuity reestablished. Thus, 19 patients still have continent cecostomies and are satisfied with their function. When comparing the function of the continent cecostomy with that of the continent ileostomy, however, it is obvious that the ileostomy function is superior. The experience obtained with this group of patients has resulted in a widening of the indications for constructing a continent ileostomy, including selected patients with various anorectal disorders.
    No preview · Article · Nov 1985 · Diseases of the Colon & Rectum
  • L O Nilsson · H E Myrvold · B Swolin · B Ojerskog
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    ABSTRACT: Plasma cobalamins (vitamin B12) were determined by a microbiological method in 235 patients with continent ileostomies and postoperative observation times of 3-13 years (mean, 6 years). The influence of the reservoir on the vitamin B12 values could not be evaluated in 22 patients (9%)--because of prophylactic treatment in 6%, subnormal B12 values before the operation in 1%, and 'treatment' of various neurological symptoms not caused by vitamin B12 deficiency in 2%. Fourteen (7%) of the remaining 213 patients had developed subnormal plasma levels of vitamin B12 and another 14 patients (7%) had 'borderline' values (130-200 pmol/l). The median time interval between reservoir operation and the development of subnormal values was 7.5 years (range, 3-11 years). A small-bowel resection had been added to the proctocolectomy in 11 out of 14 patients with subnormal values and in 8 out of 14 patients with borderline values. Subnormal or borderline values were seen in 27% of patients with Crohn's disease and in 12% of patients with ulcerative colitis. No patient had anaemia or neurological symptoms caused by B12 deficiency. The study shows that most patients with continent ileostomies do not develop B12 deficiency, and there is therefore no need for general prophylaxis. Since at least 7% developed subnormal values, the plasma levels of vitamin B12 should, however, be followed up regularly in all patients with continent ileostomies.
    No preview · Article · Jun 1984 · Scandinavian Journal of Gastroenterology
  • B Ojerskog · N G Kock · H E Myrvold · S Akerlund
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    ABSTRACT: This study was performed in order to evaluate whether postoperative nasogastric intubation as a routine measure after major intestinal surgery is advisable or not. Factors related to postoperative nasogastric intubation were compared in two consecutive series of patients operated on with construction of a continent ileostomy. 44 patients were provided with a nasogastric tube and 52 patients had no postoperative nasogastric intubation. There were no postoperative complications which could be ascribed to the presence or absence of the nasogastric tube. Patients without nasogastric tube needed less patenteral fluid support and could resume oral feeding earlier than those with nasogastric intubation. It is concluded that postoperative nasogastric intubation can be omitted as a routine procedure after construction of a continent ileostomy.
    No preview · Article · Feb 1983 · Annales chirurgiae et gynaecologiae

  • No preview · Article · Jul 1981 · Lakartidningen
  • L Hultén · J Kewenter · C Ahrén · B Ojerskog
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    ABSTRACT: Two series of young patients (less than 40 years of age) with colorectal carcinoma (22 idiopathic carcinomas and 25 carcinomas complicating ulcerative proctocolitis), well matched for age and sex, were compared with regard to clinical features, tumour morphology and stage, and ultimate outcome after surgery. The cure rate in both series was low. Although a failure to diagnose colitis carcinoma accurately at an early stage might have contributed to the poor results, such a delay could hardly be responsible for the bad prognosis in patients with idiopathic carcinoma. The vast majority of the patients in both groups studied had highly malignant and/or mucoid adenocarcinoma, and surgery was palliative in about 40% of the patients in both series, owing to widespread dissemination. The general impression gained from this study of factors of histologic grade of malignancy, extent of spread, and survival rate was that colorectal carcinomas in the young, irrespective of being idiopathic or complicating ulcerative colitis, run a rapid course and have a gloomy prognosis. The outloook depends largely on the biologic characteristics of the tumours concerned. The results support previous statements that prophylactic surgery is justified in patients with long-standing ulcerative colitis with total involvement of the colon, particularly in the young. Regrettably, patients with idiopathic carcinoma will not have this chance.
    No preview · Article · Feb 1979 · Scandinavian Journal of Gastroenterology
  • S Fasth · L Hultén · B Ojerskog
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    ABSTRACT: Peritonealization of the raw areas and closure of the pelvic floor is sometimes impossible to perform in patients subjected to abdominoperineal rectal excision when combined with extensive lymph node clearance. The postoperative course in 34 patients, treated in that way, necessitating sacrifice of the peritoneum on the dorsal aspect of the abdominal wall and in the pelvis was studied with the possible relevances in mind. Complications requiring laparotomy in the early postoperative period, occurred in three patients, but in only one of the patients was the complication considered to be related to the omission of closing the pelvic floor. Admittedly, small intestinal obstruction complicated the postoperative course later on in another three patients, but it can hardly be excluded that this complication, caused by pelvic recurrence, should not have occurred if pelvic closure had been performed. It is concluded that the importance of peritonealization, covering all raw peritoneal surfaces and pelvic reconstruction, has been overstressed in the past. Moreover, it is also suggested that it is in fact better to leave the pelvic cavity widely open than to perform a reconstruction under tension, even in patients treated by conventional abdominoperineal resection for rectal carcinoma.
    No preview · Article · Feb 1977 · Annales chirurgiae et gynaecologiae