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Peter Hesselfeldt

Publications and source records attributed to Peter Hesselfeldt.

3 recordsLinked to original sources

J-pouch ileoanal anastomosis in children and adolescents with ulcerative colitis: functional outcome, satisfaction and impact on social life.

OBJECTIVES: The aim of this study was to evaluate, over a 10-year period, severe surgical complications, functional outcome, patient satisfaction and impact on social life after colectomy and J-pouch ileoanal anastomosis for children and adolescents <18 years with ulcerative colitis. METHODS: Data were extracted retrospectively from medical records and obtained by mailed questionnaire. RESULTS: Thirty patients (18 girls) with a median age of 15 years (range, 7-17 years) were identified. Two patients (7%) had the J-pouch removed because of intractable diarrhea. Twenty-seven of 28 patients with preserved J-pouch answered the questionnaire. The median follow-up was 3.7 years (range, 0.3-9.2 years). Surgical complications included eight of 30 patients (27%) with small bowel obstruction, one of 30 (4%) with intra-abdominal abscess and two of 30 (7%) with perforation of the small intestine. The median number of daytime bowel movements was six (range, 3-10) and the median number of nighttime bowel movements was one (range, 0-2). Twelve patients (44%) were completely continent for stool and mucus, 12 patients (44%) leaked now and then and three (12%) leaked often or always. Antibiotic treatment for pouchitis was given in 13 patients (48%). Seventeen patients (63%) were completely satisfied with the operation, nine patients (33%) found the result fairly good and one patient (4%) was not satisfied. Twenty-six patients (96%) reported their health as completely or fairly good. CONCLUSIONS: The majority of patients with an intact J-pouch had an acceptable functional result with respect to defecation frequency, continence and number of pouchitis episodes. Most patients reported being satisfied with the procedure.

Adolescent↗

VEGF concentrations in tumour arteries and veins from patients with rectal cancer.

This pilot study investigated the hypothesis that the tumour itself is the source of the elevated vascular endothelial growth factor (VEGF) concentrations which are often observed in peripheral blood from patients with rectal cancer. Twenty-four consecutive patients with primary rectal cancer were included. Blood samples were drawn preoperatively from peripheral veins (I) and intraoperatively from peripheral veins (II), tumour arteries (III), and tumour veins (IV). In the four compartments, VEGF concentrations were measured in serum, EDTA plasma, and supernatants from lysed whole blood. Additionally, automated complete white cell and platelet counts were performed. In serum and EDTA plasma, no significant differences in VEGF concentrations were observed (p = 0.1 and p = 0.5), respectively) between tumour arteries and tumour veins. However, in supernatants from lysed blood, VEGF concentrations were significantly (p = 0.03) lower in venous blood than in arterial blood. Unexpectedly, a 16% reduction (p < 0.0001) in the number of neutrophils was observed during transit of the arterial blood through the rectal tumours, while none of the other types of leukocytes or platelets was significantly reduced in numbers during the same passage. These findings indicate that the tumour itself is not the only source of elevated VEGF concentrations in peripheral blood from patients with rectal cancer. A consistent finding was that a large number of neutrophils disappeared from the blood during passage through the rectal tumour. However, the significance and fate of the migrating neutrophils cells are unknown and should be investigated further.

Adult↗