A single institutional comparison of endoscopic and open abdominal component separation

Saïd C. Azoury, Andrew P. Dhanasopon, Xuan Hui, Carla De La Cruz, Sami H. Tuffaha, Justin M. Sacks, Kenzo Hirose, Thomas H. Magnuson, Caiyun Liao, Monica Lovins, Michael A. Schweitzer, Hien T. Nguyen

Research output: Contribution to journalArticlepeer-review

7 Scopus citations


Background: The authors analyzed surgical factors and outcomes data in the largest single institutional study comparing endoscopic (ECS) and open component separation (OCS) in ventral hernia repairs (VHR).

Results: Twenty-five ECS patients underwent subsequent laparoscopic hernia repair, and 17 underwent open repair. Operative time for ECS was longer than OCS (334 vs. 239 min; P < 0.001); however, there was no difference in length of stay (4 days in both groups, P = 0.64) and estimated blood loss (ECS: 97 vs. OCS: 93 cc, P = 0.847). In a sub-analysis of ECS patients, those who underwent laparoscopic hernia repair had a 96 min shorter operative time (P < 0.001) and lower EBL (63 vs. 147 cc, P < 0.001) than open repair. Wound complications were 24 % in the ECS (n = 10) and 32 % in OCS group (n = 11). There was one midline hernia recurrence in the ECS group (mean follow-up of 8 months, range 0.5–34.5 months) and no hernia recurrences in the OCS group (mean follow-up 10 months, range 0.5–30 months). Three of the patients in the ECS group developed new lateral abdominal wall hernias post-operatively.

Methods: A prospectively maintained database was reviewed, identifying 76 patients who underwent component separation for VHR with mesh from 2010 to 2013: 34 OCS and 42 ECS. Comparisons were made for demographics, surgical risk factors, and peri-operative outcomes. Wound complications and hernia occurrence post-operatively were reviewed. Risk analyses were performed to determine the association of pre-operative risk factors with surgical site occurrences.

Conclusions: The ECS group had a significantly longer operative time than the OCS group. Post-operative wound complications were similar between ECS and OCS groups. Patients in the ECS group who underwent subsequent laparoscopic VHR had a shorter operative time and blood loss than open repair.

Original languageEnglish
Pages (from-to)3349-3358
Number of pages10
JournalSurgical endoscopy
Issue number12
StatePublished - Dec 2014


  • Component separation
  • Endoscopic
  • Laparoscopic
  • Ventral hernia repair


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