Background

Studies have shown conflicting effects of resident involvement on outcomes after laparoscopic bariatric surgery. Resident involvement may be a proxy for a teaching environment in which multiple factors affect patient outcomes. However, no study has examined outcomes of laparoscopic bariatric surgery based on hospital teaching status.

Objective

To compare outcomes after laparoscopic Roux-en-Y gastric bypass (LRYGB) and laparoscopic sleeve gastrectomy (LSG) between teaching hospitals (THs) and nonteaching hospitals (NTHs).

Setting

Retrospective review of a national database in the United States.

Methods

The Nationwide Inpatient Sample database (2011-2013) was reviewed for obese patients who underwent LRYGB or LSG. Patient demographic characteristics and outcomes were analyzed according to hospital teaching status. Primary outcome measures included risk-adjusted inpatient mortality and serious morbidity.

Results

We analyzed 32,449 LRYGBs and 26,075 LSGs. There were 35,160 (60.1%) cases performed at THs and 23,364 (39.9%) cases performed at NTHs. At THs, the distribution of LRYGB versus LSG cases was 20,461 (58.2%) versus 14,699 (41.8%), respectively; at NTHs, the distribution was 11,988 (51.3%) versus 11,376 (48.7%), respectively. For LRYGB, there were no significant differences between THs versus NTHs in mortality (AOR 1.14; P = 0.99), but there was an increase in odds of serious morbidity at THs (AOR 1.36; P<0.001). For LSG, there were no significant differences between THs versus NTHs for mortality (AOR 1.15; P = 0.99) or serious morbidity (AOR 1.03; P = 0.99).

Conclusions

There is an association between THs and increased serious morbidity for LRYGB, but hospital teaching status has no effect on morbidity or mortality after LSG. Further research is warranted to elucidate the reasons for these associations.

Background

Studies have shown conflicting effects of resident involvement on outcomes after laparoscopic bariatric surgery. Resident involvement may be a proxy for a teaching environment in which multiple factors affect patient outcomes. However, no study has examined outcomes of laparoscopic bariatric surgery based on hospital teaching status.

Objective

To compare outcomes after laparoscopic Roux-en-Y gastric bypass (LRYGB) and laparoscopic sleeve gastrectomy (LSG) between teaching hospitals (THs) and nonteaching hospitals (NTHs).

Setting

Retrospective review of a national database in the United States.

Methods

The Nationwide Inpatient Sample database (2011-2013) was reviewed for obese patients who underwent LRYGB or LSG. Patient demographic characteristics and outcomes were analyzed according to hospital teaching status. Primary outcome measures included risk-adjusted inpatient mortality and serious morbidity.

Results

We analyzed 32,449 LRYGBs and 26,075 LSGs. There were 35,160 (60.1%) cases performed at THs and 23,364 (39.9%) cases performed at NTHs. At THs, the distribution of LRYGB versus LSG cases was 20,461 (58.2%) versus 14,699 (41.8%), respectively; at NTHs, the distribution was 11,988 (51.3%) versus 11,376 (48.7%), respectively. For LRYGB, there were no significant differences between THs versus NTHs in mortality (AOR 1.14; P = 0.99), but there was an increase in odds of serious morbidity at THs (AOR 1.36; P<0.001). For LSG, there were no significant differences between THs versus NTHs for mortality (AOR 1.15; P = 0.99) or serious morbidity (AOR 1.03; P = 0.99).

Conclusions

There is an association between THs and increased serious morbidity for LRYGB, but hospital teaching status has no effect on morbidity or mortality after LSG. Further research is warranted to elucidate the reasons for these associations.

Background: We performed a systematic review of the literature on antibiotic prophylaxis practices in open reduction, and internal fixation of, facial fracture(s) (ORIFfx). We hypothesized that prolonged antibiotic prophylaxis (PAP) would not decrease the rate of surgical site infections (SSIs). Methods: We performed a systematic review of four databases: PubMed, CENTRAL, EMBase, and Web of Science, from inception through January 15, 2017. Three independent reviewers extracted fracture location (orbital, mid-face, mandible), antibiotic use, SSI incidence, and time from injury to surgery. Mantel-Haenszel and generalized estimating equations were carried out independently for each fracture zone. Results: Of the 587 articles identified, 54 underwent full-text review, yielding 27 studies that met our inclusion criteria. Of these, 16 studies (n = 2,316 patients) provided data for mandible fractures, four studies (n = 439) for mid-face fractures, and six studies (n = 377) for orbital fractures. Pooled analysis of each fracture type's SSI rate showed no statistically significant association with the odds ratio (OR) of developing an SSI. For mandible fractures treated with ORIFfx, the OR for an SSI after 24-72 hours of prophylaxis relative to <24 hours was 0.85 (95% confidence interval [CI] 0.62-1.17), whereas for >72 hours compared with <24 hours, the OR was 1.42 (95% CI) 0.96-2.11). For mid-face fractures, there was no improvement in SSI rate from PAP (OR 1.05; 95% CI 0.20-5.63). Conclusions: We did not demonstrate a lower rate of SSI associated with PAP for any ORIFfx repair. Post-operative antibiotics for >72 hours paradoxically may increase the SSI risk after mandible fracture repairs.