title: Spirometric assessment of lung transplant patients: one year follow-up.
abstract: OBJECTIVE
  The purpose of this study was to compare spirometry data between patients who underwent single-lung or double-lung transplantation the first year after transplantation.
  
  
  BACKGROUND
  Lung transplantation, which was initially described as an experimental method in 1963, has become a therapeutic option for patients with advanced pulmonary diseases due to improvements in organ conservation, surgical technique, immunosuppressive therapy and treatment of post-operative infections.
  
  
  METHODS
  We retrospectively reviewed the records of the 39 patients who received lung transplantation in our institution between August 2003 and August 2006. Twenty-nine patients survived one year post-transplantation, and all of them were followed.
  
  
  RESULTS
  The increase in lung function in the double-lung transplant group was more substantial than that of the single-lung transplant group, exhibiting a statistical difference from the 1st month in both the forced expiratory volume in one second (FEV1) and the forced vital capacity (FVC) in comparison to the pre-transplant values (p <0.05). Comparison between double-lung transplant and single lung-transplant groups of emphysema patients demonstrated a significant difference in lung function beginning in the 3rd month after transplantation.
  
  
  CONCLUSIONS
  The analyses of the whole group of transplant recipients and the sub-group of emphysema patients suggest the superiority of bilateral transplant over the unilateral alternative. Although the pre-transplant values of lung function were worse in the double-lung group, this difference was no longer significant in the subsequent months after surgery.
  
  
  CONCLUSIONS
  Although both groups demonstrated functional improvement after transplantation, there was a clear tendency to greater improvement in FVC and FEV1 in the bilateral transplant group. Among our subjects, double-lung transplantation improved lung function.
authors: Hospital das Clínicas, Faculdade de Medicina, Universidade de São Paulo, São Paulo, Brazil. paulopego@incor.usp.br
authors: Paulo M
authors: PM
authors: Pêgo-Fernandes
authors: Fernando Conrado
authors: FC
authors: Abrão
authors: Frederico Leon Arrabal
authors: FL
authors: Fernandes
authors: Marlova L
authors: ML
authors: Caramori
authors: Marcos Naoyuki
authors: MN
authors: Samano
authors: Fabio B
authors: FB
authors: Jatene
mesh_terms: D000328:Adult; D004646:Emphysema / Q000473:pathology; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D016040:Lung Transplantation / Q000473:pathology / Q000502:physiology*; D008297:Male; D008875:Middle Aged; D012129:Respiratory Function Tests; D012189:Retrospective Studies; D013147:Spirometry; D013997:Time Factors