title: Single incision laparoscopic liver resection (SILL) - a systematic review.
abstract: BACKGROUND
  Today, minimally invasive liver resections for both benign and malignant tumors are routinely performed. Recently, some authors have described single incision laparoscopic liver resection (SILL) procedures. Since SILL is a relatively young branch of laparoscopy, we performed a systematic review of the current literature to collect data on feasibility, perioperative results and oncological outcome.
  
  
  METHODS
  A literature research was performed on Medline for all studies that met the eligibility criteria. Titles and abstracts were screened by two authors independently. A study was included for review if consensus was obtained by discussion between the authors on the basis of predefined inclusion criteria. A thorough quality assessment of all included studies was performed. Data were analyzed and tabulated according to predefined outcome measures. Synthesis of the results was achieved by narrative review.
  
  
  RESULTS
  A total of 15 eligible studies were identified among which there was one prospective cohort study and one randomized controlled trial comparing SILL to multi incision laparoscopic liver resection (MILL). The rest were retrospective case series with a maximum of 24 patients. All studies demonstrated convincing results with regards to feasibility, morbidity and mortality. The rate of wound complications and incisional hernia was low. The cosmetic results were good.
  
  
  CONCLUSIONS
  This is the first systematic review on SILL including prospective trials. The results of the existing studies reporting on SILL are favorable. However, a large body of scientific evidence on the field of SILL is missing, further randomized controlled studies are urgently needed.
authors.affiliation: Department of General, Visceral, and Transplant Surgery, Campus Virchow Klinikum and Department of General, Visceral, Vascular and Thoracic Surgery, Campus Mitte, Charité - Universitätsmedizin Berlin, Berlin, Germany.
authors.forename: Christian
authors.initials: C
authors.lastname: Benzing
authors.affiliation: Department of General, Visceral, and Transplant Surgery, Campus Virchow Klinikum and Department of General, Visceral, Vascular and Thoracic Surgery, Campus Mitte, Charité - Universitätsmedizin Berlin, Berlin, Germany.
authors.forename: Felix
authors.initials: F
authors.lastname: Krenzien
authors.affiliation: Department of General, Visceral, and Transplant Surgery, Campus Virchow Klinikum and Department of General, Visceral, Vascular and Thoracic Surgery, Campus Mitte, Charité - Universitätsmedizin Berlin, Berlin, Germany.
authors.forename: Georgi
authors.initials: G
authors.lastname: Atanasov
authors.affiliation: Department of General, Visceral, and Transplant Surgery, Campus Virchow Klinikum and Department of General, Visceral, Vascular and Thoracic Surgery, Campus Mitte, Charité - Universitätsmedizin Berlin, Berlin, Germany.
authors.forename: Daniel
authors.initials: D
authors.lastname: Seehofer
authors.affiliation: Department of General, Visceral, and Transplant Surgery, Campus Virchow Klinikum and Department of General, Visceral, Vascular and Thoracic Surgery, Campus Mitte, Charité - Universitätsmedizin Berlin, Berlin, Germany.
authors.forename: Robert
authors.initials: R
authors.lastname: Sucher
authors.affiliation: Department of General, Visceral, and Transplant Surgery, Campus Virchow Klinikum and Department of General, Visceral, Vascular and Thoracic Surgery, Campus Mitte, Charité - Universitätsmedizin Berlin, Berlin, Germany.
authors.forename: Ricardo
authors.initials: R
authors.lastname: Zorron
authors.affiliation: Department of General, Visceral, and Transplant Surgery, Campus Virchow Klinikum and Department of General, Visceral, Vascular and Thoracic Surgery, Campus Mitte, Charité - Universitätsmedizin Berlin, Berlin, Germany.
authors.forename: Johann
authors.initials: J
authors.lastname: Pratschke
authors.affiliation: Department of General, Visceral, and Transplant Surgery, Campus Virchow Klinikum and Department of General, Visceral, Vascular and Thoracic Surgery, Campus Mitte, Charité - Universitätsmedizin Berlin, Berlin, Germany.
authors.forename: Moritz
authors.initials: M
authors.lastname: Schmelzle
keywords: single incision laparoscopic hepatectomy; single-port laparoscopic liver resection; single-site laparoscopic liver resection