title: Metabolism of body water and electrolytes after surgery for ulcerative colitis: conventional ileostomy versus J pouch.
abstract: Some authorities believe that patients with conventional ileostomies are chronically water and salt depleted but there are no data on the metabolism of body water and electrolytes after ileoanal J pouch. To clarify the situation we studied the body composition of 14 patients with well functioning ileostomies and 20 patients with well functioning J pouches. Both groups were compared with two closely matched control groups. Body weight, total body fat, fat-free mass, total body water and extracellular water were measured by neutron activation analysis, tritiated water and bromide dilution respectively; 24-h collections of urine and stool were analysed for volume and electrolyte content. The results show that the body content of water and extracellular fluid in ileostomy patients and J pouch patients is normal. The faecal volume and chemistry is similar in both groups resulting in a similar and significant degree of urinary sodium retention.
authors.affiliation: University Department of Surgery, Auckland Hospital, New Zealand.
authors.forename: P M
authors.initials: PM
authors.lastname: Christie
authors.forename: G S
authors.initials: GS
authors.lastname: Knight
authors.forename: G L
authors.initials: GL
authors.lastname: Hill
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D001003:Anal Canal / Q000601:surgery; D001823:Body Composition / Q000502:physiology; D001834:Body Water / Q000378:metabolism*; D001835:Body Weight / Q000502:physiology; D003093:Colitis, Ulcerative / Q000601:surgery*; D004573:Electrolytes / Q000378:metabolism*; D005260:Female; D006801:Humans; D007081:Ileostomy; D007082:Ileum / Q000601:surgery; D008297:Male; D008875:Middle Aged; D011184:Postoperative Period; D011188:Potassium / Q000378:metabolism; D012964:Sodium / Q000378:metabolism
chemical_list: D004573:Electrolytes; D012964:Sodium; D011188:Potassium