title: Outcomes of laparoscopic adrenalectomy Conventional technique versus laparo-endoscopic single-site surgery.
abstract: OBJECTIVE
  Perform a comparative analysis of the outcomes of conventional laparoscopic adrenalectomy (LC) and the newly introduced laparo-endoscopic single-site surgery (LESS) over ten years.
  
  
  METHODS
  We retrospectively reviewed the experience of a single surgeon from our medical centre with laparoscopic adrenalectomy, either through LC or LESS, with 75 patients between August 2005 and June 2015. Here we describe: age, sex, size, lateralization, preoperative diagnosis, total operating time, intraoperative bleeding, conversion to open surgery, mean hospital stay, intra- and postoperative complications and histopathology report. We used Fischer's and the Chi-squared tests to compare categorical data and Student's T-test for a comparison of the means with a normal distribution. Statistical significance was determined when p<0.05.
  
  
  RESULTS
  LC was performed in 51 patients, and LESS in 24 patients. No statistical significance was found for total operating time (LC: 103.9±13.21min vs. LESS: 101.46±13.65min; p=0.07), estimated bleeding (LC: 258.82±136.92cc vs. LESS: 131,25±36,74cc; p=0.46), intraoperative complications (5 cases in LC, none in LESS; p=0.47), nor for postoperative complications (two in LC vs. one in LESS; p=0.69), as catalogued according to the modified Clavien classification system. We detected a statistical significance difference in the comparisons of the mean hospital stay, which was reduced in LESS (LC: 3.55±0.69 days vs. LESS: 2.21±0.31 days; p=0.01).
  
  
  CONCLUSIONS
  Adrenalectomy with LC is the approach of choice for surgical treatment of adrenal pathologies. The LESS technique is safe, improves the cosmetic results, and does not increase mortality if performed by experienced teams.
authors.affiliation: Complejo Hospitalario Universitario Insular-Materno Infantil de Gran Canaria, Las Palmas, España. Electronic address: paula.leon.medina@gmail.com.
authors.forename: P
authors.initials: P
authors.lastname: León-Medina
authors.affiliation: Complejo Hospitalario Universitario Insular-Materno Infantil de Gran Canaria, Las Palmas, España.
authors.forename: A
authors.initials: A
authors.lastname: Blanco-Díez
authors.affiliation: Complejo Hospitalario Universitario Insular-Materno Infantil de Gran Canaria, Las Palmas, España.
authors.forename: D M
authors.initials: DM
authors.lastname: Mejía-Chavarría
authors.affiliation: Complejo Hospitalario Universitario Insular-Materno Infantil de Gran Canaria, Las Palmas, España.
authors.forename: J V
authors.initials: JV
authors.lastname: Armas-Molina
authors.affiliation: Complejo Hospitalario Universitario Insular-Materno Infantil de Gran Canaria, Las Palmas, España.
authors.forename: J
authors.initials: J
authors.lastname: Molina-Cabrillana
authors.affiliation: Complejo Hospitalario Universitario Insular-Materno Infantil de Gran Canaria, Las Palmas, España.
authors.forename: J L
authors.initials: JL
authors.lastname: Artiles-Hernández
mesh_terms: D000307:Adrenal Gland Diseases / Q000601:surgery*; D000315:Adrenalectomy / Q000379:methods*; D005260:Female; D006801:Humans; D010535:Laparoscopy; D008297:Male; D008875:Middle Aged; D012189:Retrospective Studies; D016896:Treatment Outcome
keywords: Adrenal; Laparascopic adrenalectomy; Puerto único laparoscópico; Single-site laparoscopy; Suprarrenal; Suprarrenalectomía laparoscópica