title: Laparoscopic versus open ventral hernia mesh repair: a prospective study.
abstract: BACKGROUND
  An incisional hernia develops in 3% to 13% of laparotomy incisions, with primary suture repair of ventral hernias yielding unsatisfactory results. The introduction of a prosthetic mesh to ensure abdominal wall strength without tension has decreased the recurrence rate, but open repair requires significant soft tissue dissection in tissues that are already of poor quality as well as flap creation, increasing complication rates and affecting the recurrence rate. A minimally invasive approach was applied to the repair pf ventral hernias, with the expectation of earlier recovery, fewer postoperative complications, and decreased recurrence rates. This prospective study was performed to objectively analyze and compare the outcomes after open and laparoscopic ventral hernia repair.
  
  
  METHODS
  The outcomes for 50 unselected patients who underwent laparoscopic ventral hernia repair were compared with those for 50 consecutive unselected patients who underwent open repair. The open surgical operations were performed by the Rives and Stoppa technique using prosthetic mesh, whereas the laparoscopic repairs were performed using the intraperitoneal onlay mesh (IPOM) repair technique in all cases.
  
  
  RESULTS
  The study group consisted of 100 patients (82 women and 18 men) with a mean age of 55.25 years (range, 30-83 years). The patients in the two groups were comparable at baseline in terms of sex, presenting complaints, and comorbid conditions. The patients in laparoscopic group had larger defects (93.96 vs 55.88 cm2; p = 0.0023). The mean follow-up time was 20.8 months (95% confidence interval [CI], 18.5640-23.0227 months). The mean surgery durations were 90.6 min for the laparoscopic repair and 93.3 min for the open repair (p = 0.769, nonsignificant difference). The mean postoperative stay was shorter for the laparoscopic group than for the open hernia group (2.7 vs 4.7 days; p = 0.044). The pain scores were similar in the two groups at 24 and 48 h, but significantly less at 72 h in the laparoscopic group (mean visual analog scale score, 2.9412 vs 4.1702; p = 0.001). There were fewer complications (24%) and recurrences (2%) among the patients who underwent laparoscopic repair than among those who had open repair (30% and 10%, respectively).
  
  
  CONCLUSIONS
  The findings demonstrate that laparoscopic ventral hernia repair in our experience was safe and resulted in shorter operative time, fewer complications, shorter hospital stays, and less recurrence. Hence, it should be considered as the procedure of choice for ventral hernia repair.
authors.affiliation: Minimally Invasive Surgical Centre, Department of Surgery, National University Hospital, 5 Lower Kent Ridge Road, Singapore 119074, Singapore. surdl@nus.edu.sg
authors.forename: D
authors.initials: D
authors.lastname: Lomanto
authors.forename: S G
authors.initials: SG
authors.lastname: Iyer
authors.forename: A
authors.initials: A
authors.lastname: Shabbir
authors.forename: W-K
authors.initials: WK
authors.lastname: Cheah
mesh_terms: D005260:Female; D006555:Hernia, Ventral / Q000601:surgery*; D006801:Humans; D010535:Laparoscopy; D008297:Male; D008875:Middle Aged; D011446:Prospective Studies; D013526:Surgical Mesh