• Med Klin · Jan 1995

    Case Reports

    [Diagnosis of dysfunctions of replanted parathyroid gland tissue by bilateral analysis of intact parathyroid hormones in cubital vein blood. A prospective study].

    • S Walgenbach, T Junginger, H Köhler, and E Wandel.
    • Klinik und Poliklinik für Allgemein- und Abdominalchirurgie, Johannes-Gutenberg-Universität Mainz.
    • Med Klin. 1995 Jan 15;90(1):8-16.

    AimIn 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.Patients And MaterialFrom 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.ResultsDuring 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.ConclusionRegular 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.

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