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  • Title: Use and outcomes of laparoscopic versus open gastric bypass at academic medical centers.
    Author: Nguyen NT, Hinojosa M, Fayad C, Varela E, Wilson SE.
    Journal: J Am Coll Surg; 2007 Aug; 205(2):248-55. PubMed ID: 17660071.
    Abstract:
    BACKGROUND: A large outcome study of laparoscopic gastric bypass has not been done because of difficulty in differentiating between open and laparoscopic procedures in the absence of a specific ICD-9 procedural code for the laparoscopic operation. The University HealthSystem Consortium (UHC) clinical database recently added a specific procedural code for laparoscopic gastric bypass. The goal of this study was to compare the use and outcomes of laparoscopic versus open gastric bypass at academic centers. STUDY DESIGN: Using ICD-9 diagnosis and procedure codes, we obtained data from the UHC clinical database for all patients who underwent laparoscopic or open Roux-en-Y gastric bypass for treatment of morbid obesity between 2004 and 2006 (n = 22,422). The main outcomes measures were demographics, comorbidities, length of hospital stay, 30-day readmission, morbidity, observed and expected (risk-adjusted) mortality, and costs. RESULTS: There were 16,357 patients who underwent laparoscopic gastric bypass and 6,065 patients who underwent open gastric bypass. Laparoscopic gastric bypass patients had a shorter length of hospital stay (2.7 days versus 4.0 days, p < 0.01); lower overall complications (7.4% versus 13.0%, p < 0.01); lower rates of pneumonia, venous thrombosis, leak, wound infection, and pulmonary complications; costs were also lower. The observed-to-expected in-hospital mortality ratio was similar between groups (1.0 versus 1.0). CONCLUSIONS: This nationwide analysis of academic medical centers between 2004 and 2006 showed that bariatric surgery has shifted to a predominately laparoscopic approach. In addition, laparoscopic gastric bypass is as safe as open gastric bypass and is considerably associated with a lower 30-day morbidity.
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