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Sökning: WFRF:(Graf Wilhelm) > (2000-2004) > (2004) > Refereegranskat

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  • Lundin, Erik, et al. (författare)
  • Scintigraphic assessment of slow transit constipation with special reference to right- or left-sided colonic delay
  • 2004
  • Ingår i: Colorectal Disease. - : Wiley. - 1462-8910 .- 1463-1318. ; 6:6, s. 499-505
  • Tidskriftsartikel (refereegranskat)abstract
    • OBJECTIVE: Subtotal colectomy and ileorectal anastomosis for slow transit constipation has several side-effects. The motor abnormality in some patients may be segmental which could motivate a limited resection of the colon. Therefore a diagnostic tool to identify a segmental colonic motor dysfunction is needed. The aim of this study was to evaluate a scintigraphic method to assess colonic transit with special reference to right- or left-sided delay. METHODS: Twenty-three constipated patients (19 women, mean age 50 years) with slow colonic transit on radio-opaque marker studies and 13 healthy individuals (11 women, mean age 46 years) were studied. All subjects were examined with oral (111)Indium-DTPA scintigraphy. The scintigraphic results for patients and controls were presented as geometric centre of radioactivity and percent activity over time in the right, the left and the recto-sigmoid colon. The inter-observer variation in the interpretation of the scans was also evaluated. RESULTS: There was no difference in transit time between the groups of patients and controls in the right colon whereas the patients had a significant delay in the left colon (P < 0.05). Two patients had a marked delay in the right colon followed by relatively rapid transit in the left colon. The inter-observer correlation was good comparing the right, the left and the recto-sigmoid colon (r = 0.58-0.98, P < 0.01-0.001). CONCLUSION: The results indicate that colonic scintigraphy with oral (111)Indium-DTPA may help to select patients for a left or, in a few cases, a right hemicolectomy for slow transit constipation.
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  • Mahteme, Haile, et al. (författare)
  • Uptake of 5-fluorouracil (5-FU) in peritoneal metastases in relation to the route of drug administration and tumour debulking surgery : an autoradiographic study in the rat
  • 2004
  • Ingår i: European Journal of Cancer. - 0959-8049 .- 1879-0852. ; 40:1, s. 142-147
  • Tidskriftsartikel (refereegranskat)abstract
    • Patients with peritoneal metastases from colorectal cancer have a poor prognosis. Aggressive treatment by debulking surgery and intraperitoneal (i.p.) chemotherapy has been suggested as an alternative therapy. However, the drug penetrance into the tumour in relation to the administration route and surgical reduction of the tumour is not well known. We compared locoregional administration with intravenous (i.v.) injection. Thirty-four in-bred rats with peritoneal metastases were randomly allocated into eight groups and injected with 14C-labelled 5-fluorouracil (5-FU) either through the i.v. or i.p. route, with or without a preceding tumour debulking, and were sacrificed after 2 or 8 h. Tumour radioactivity was visualised by autoradiography and quantified by a computer-based image analysis. After 8 h, 19 debulked and i.p.-injected tumours had a higher drug uptake, 63.2+/-28 (mean+/-standard deviation (SD)) kBq/g than 62 native i.p.-injected tumours (32.8+/-14) or 22 debulked and i.v.-injected tumours (18.5+/-18, P=0.002). After 8 h, 9 small tumours (/=median 571 pixels), 16 debulked and i.p.-injected tumours had a higher radioactivity (drug uptake) (150.7+/-63) at 2 h than 49 i.p.-injected native tumours (48.5+/-59) or 11 reduced and i.v.-injected tumours (19.9+/-13, P=0.03). At 8 h, 10 debulked and i.p.-injected tumours had a higher drug uptake (50.3+/-24) than 33 native and i.p.-injected (30.8+/-10) or 14 debulked and i.v.-injected tumours (16.0+/-19, P=0.001). These results indicate that a debulking procedure and locoregional treatment of peritoneal metastases is associated with an increased level of 5-FU in the tumours.
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Graf, Wilhelm (3)
Påhlman, Lars (2)
Karlbom, Urban (2)
Nilsson, Sven (1)
Sundin, Anders (1)
Larsson, B (1)
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Mahteme, Haile (1)
Kairemo, Kalevi (1)
Lundin, Erik (1)
Westlin, Jan-Erik (1)
Jung, Bo (1)
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