title: Laparoscopic surgery in functional and nonfunctional adrenal tumors: A single-center experience.
abstract: BACKGROUND
  Laparoscopic adrenalectomy (LA) is a safe and minimally invasive operation for benign adrenal tumours. The purpose of this study was a retrospective analysis of outcomes following laparoscopic lateral transabdominal adrenalectomy performed for benign adrenal tumours responsible for various endocrinological disorders and non-functioning tumours.
  
  
  METHODS
  A total of 100 laparoscopic adrenalectomy were carried out between January 2007 and March 2013 via the lateral transabdominal approach. The analysed factors included demographic data of patients, indication for surgery, tumour size and side, intraoperative and postoperative outcome of laparoscopic lateral transabdominal adrenalectomy including duration of surgery, length of hospital stay, the complication rate, as well as the conversion rate to open adrenalectomy.
  
  
  RESULTS
  There were 34 patients with non-functioning tumours (Group 1) and 66 with functioning tumours (Group 2). The intraoperative and postoperative outcomes were not significantly different in the cases among the analysed groups of patients. The median operative time was 101 ± 4.3 (range, 30-210) minute in group 1 and 95 ± 5.9 (range, 30-190) minute in group 2, there was not statistically significant (p = 0.56). The median duration of the postoperative hospital stay in the group 1 was bigger than group 2, this did not differ significantly (p = 0.08). Peroperative complications were occured in 9 (9%) patients, observing 6 (9%) patients in Group 1 and 3 (8.8%) patients in Group 2. There was not statistically significant (p = 0.96). In the postoperative period, three patients in group I, 1 patient in group II developed complications, this difference was not statistically significant (p = 0.69). The conversion to open surgery was found in 9 (9%) patients.
  
  
  CONCLUSIONS
  This study shows that laparoscopic lateral transabdominal adrenalectomy is a safe, effective, and technically feasible procedure in the treatment of both functioning and nonfunctioning benign tumours of the adrenal gland.
authors.affiliation: Department of General Surgery, Faculty of Medicine, Erciyes University, Kayseri, Turkey. Electronic address: drbahadir01@gmail.com.
authors.forename: Bahadır
authors.initials: B
authors.lastname: Öz
authors.affiliation: Department of General Surgery, Faculty of Medicine, Erciyes University, Kayseri, Turkey.
authors.forename: Alper
authors.initials: A
authors.lastname: Akcan
authors.affiliation: Department of General Surgery, Faculty of Medicine, Erciyes University, Kayseri, Turkey.
authors.forename: Ertan
authors.initials: E
authors.lastname: Emek
authors.affiliation: Department of General Surgery, Faculty of Medicine, Erciyes University, Kayseri, Turkey.
authors.forename: Muhammet
authors.initials: M
authors.lastname: Akyüz
authors.affiliation: Department of General Surgery, Faculty of Medicine, Erciyes University, Kayseri, Turkey.
authors.forename: Erdoğan
authors.initials: E
authors.lastname: Sözüer
authors.affiliation: Department of General Surgery, Faculty of Medicine, Erciyes University, Kayseri, Turkey.
authors.forename: Hızır
authors.initials: H
authors.lastname: Akyıldız
authors.affiliation: Department of Anesthesia, Faculty of Medicine, Erciyes University, Kayseri, Turkey.
authors.forename: Adnan
authors.initials: A
authors.lastname: Bayram
authors.affiliation: Department of General Surgery, Faculty of Medicine, Erciyes University, Kayseri, Turkey.
authors.forename: Rıdvan
authors.initials: R
authors.lastname: Kulu
authors.affiliation: Department of General Surgery, Faculty of Medicine, Erciyes University, Kayseri, Turkey.
authors.forename: Engin
authors.initials: E
authors.lastname: Ok
mesh_terms: D000236:Adenoma / Q000601:surgery*; D000310:Adrenal Gland Neoplasms / Q000601:surgery*; D000315:Adrenalectomy / Q000379:methods*; D000328:Adult; D000368:Aged; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D010535:Laparoscopy; D008297:Male; D008875:Middle Aged; D018209:Myelolipoma / Q000601:surgery*; D012189:Retrospective Studies; D016896:Treatment Outcome
keywords: functioning adrenal tumours; laparoscopic lateral transabdominal adrenalectomy; non-functioning adrenal tumours