title: [Diagnosis of dysfunctions of replanted parathyroid gland tissue by bilateral analysis of intact parathyroid hormones in cubital vein blood. A prospective study].
abstract: OBJECTIVE
  In a prospective long-term follow-up study after operative therapy of hyperparathyroidism the value of bilateral determination of parathyroid hormone levels in cubital venous blood after total parathyroidectomy/autologous parathyroid gland reimplantation (musculus brachioradialis) for diagnosis of dysfunctioning grafted tissue is evaluated.
  
  
  METHODS
  From August, 1, 1987 to March, 31, 1994 68 of 243 patients operated on for hyperparathyroidism underwent total parathyroidectomy. Autologous reimplantation of parathyroid gland was carried out simultaneously in 64 patients. Twice delayed reimplantation of cryopreserved tissue was carried out, and there was no reimplantation in two patients up to this day. Three patients were operated on for hyperfunctioning parathyroid autograft after former total parathyroidectomy/reimplantation.
  
  
  RESULTS
  During follow-up 5 patients developed dysfunction of (reimplanted) parathyroid gland. Because of low or unprovable levels of intact parathormone the gradients of intact parathyroid hormone between grafted and nongrafted forearm were about 1:1 in postoperative hypoparathyroidism as well as in hypofunction of parathyroid gland. After successful replantation of cryopreserved parathyroid tissue gradients of intact parathyroid hormone increased (> 1:10). In hyperfunction of grafted parathyroid tissue hormone gradients were high (> 1:20 to 1:45,3) because of excessive high levels of intact parathormone in the cubital vein of the graft bearing arm. Successful reduction of parathyroid graft was followed by decrease of parathyroid hormone gradients.
  
  
  CONCLUSIONS
  Regular follow-up of intact parathormone gradients together with intact parathyroid hormone levels and serumcalcium analysis allow the determination of parathyroid graft function. Also differentiation between graft dependent hyperparathyroidism and hyperfunctioning parathyroid tissue in the neck or mediastinum seems to be possible by bilateral determination of intact parathormone. Normal values or a normal range for intact parathyroid hormone gradients can not yet be defined.
authors.affiliation: Klinik und Poliklinik für Allgemein- und Abdominalchirurgie, Johannes-Gutenberg-Universität Mainz.
authors.forename: S
authors.initials: S
authors.lastname: Walgenbach
authors.forename: T
authors.initials: T
authors.lastname: Junginger
authors.forename: H
authors.initials: H
authors.lastname: Köhler
authors.forename: E
authors.initials: E
authors.lastname: Wandel
mesh_terms: D000328:Adult; D000368:Aged; D015925:Cryopreservation; D005260:Female; D005500:Follow-Up Studies; D005542:Forearm / Q000601:surgery; D006801:Humans; D006961:Hyperparathyroidism / Q000097:blood / Q000175:diagnosis / Q000601:surgery*; D007011:Hypoparathyroidism / Q000097:blood / Q000175:diagnosis*; D008297:Male; D008875:Middle Aged; D010280:Parathyroid Glands / Q000637:transplantation*; D010281:Parathyroid Hormone / Q000097:blood*; D016105:Parathyroidectomy; D011183:Postoperative Complications / Q000097:blood / Q000175:diagnosis*; D011446:Prospective Studies; D012016:Reference Values; D014021:Tissue Preservation; D016042:Transplantation, Heterotopic
chemical_list: D010281:Parathyroid Hormone
vernacular_title: Diagnostik von Dysfunktionen replantierten Nebenschilddrüsengewebes durch seitengetrennte Analyse des intakten Parathormons im Kubitalvenenblut. Eine prospektive Untersuchung.