title: Neuropsychiatric and cognitive changes after surgery for primary hyperparathyroidism.
abstract: BACKGROUND
  Neuropsychiatric symptoms and cognitive impairment are mental manifestations of primary hyperparathyroidism (pHPT). The aim of our study was to determine if surgical treatment results in a long-lasting full recovery from these symptoms.
  
  
  METHODS
  In a prospective case-control study with matching pairs, mental changes were examined preoperatively and 6 months postoperatively in 30 patients with primary hyperparathyroidism and 30 patients with nontoxic nodular goiter using the Hamilton depression score and four cognitive tests: DEM Tect, MWT (multiple word test), ZVT, and Benton test.
  
  
  RESULTS
  Patients with pHPT demonstrated significantly more cognitive changes (P < 0.0001) with significant improvement 6 months postoperatively (P < 0.0001). Patients with pHPT presented more psychopathologic symptoms than patients of the control group (P = NS), and there was a tendency towards recovery in the pHPT group postoperatively. There was no correlation between biochemistry and psychopathologic or cognitive changes in the pHPT group.
  
  
  CONCLUSIONS
  Patients with pHPT often present with neuropsychiatric symptoms and cognitive impairment. A successful parathyroid operation improves cognitive disorders in particular.
authors: Department of Surgery, St. Antonius-Kliniken, Vogelsangstrasse 106, 42109, Wuppertal, Germany. dotzenr@uni-duesseldorf.de
authors: Cornelia M E
authors: CM
authors: Dotzenrath
authors: Ana Karena
authors: AK
authors: Kaetsch
authors: Henrich
authors: H
authors: Pfingsten
authors: Kenko
authors: K
authors: Cupisti
authors: Norbert
authors: N
authors: Weyerbrock
authors: Alexander
authors: A
authors: Vossough
authors: Pablo E
authors: PE
authors: Verde
authors: Christian
authors: C
authors: Ohmann