Hospital-acquired conditions after bariatric surgery: we can predict,but can we prevent?

Background

Centers for Medicare and Medicaid Services initiated a non-payment policy for certain hospital-acquired conditions (HACs) in 2008. This study aimed to determine the rate of the three most common HACs (surgical site infection (SSI), urinary tract infection (UTI), and venous thromboembolism (VTE)) among bariatric surgery patients. Additionally, the association of HACs with patient factors and the effect of HACs on post-operative outcomes were investigated.

Methods

Patients over 18 years with a body mass index (BMI) ≥35 who underwent bariatric surgery were identified using the American College of Surgeons’ National Surgical Quality Improvement Program (ACS-NSQIP) database (2005–2012). Patients were grouped into two categories: HAC versus no HAC patients and baseline characteristics and outcomes, including 30-day mortality, reoperation, and mean length of stay (LOS) were compared. Multivariable logistic regression analysis was performed to identify the risk factors for developing a HAC.

Results

98,553 patients were identified, 2,809 (2.9 %) developed at least one HACs. SSI was the most common HAC (1.8 %), followed by UTI (0.7 %) and VTE (0.4 %). The rate of these HACs significantly decreased from 4.6 % in 2005–2006 to 2.5 % in 2012 (p < 0.001). Laparoscopic gastric banding was associated with the lowest rates of HAC (1.3 %) and open gastric bypass with the highest (8.0 %). HAC patients had significantly higher rates of in-hospital mortality (0.8 vs. 0.1 %, p < 0.001) and LOS (3.9 vs. 2.1 days, p < 0.001). On adjusted analysis, open GBP patients had 5.36-fold higher odds of developing a HAC. Interestingly, the presence of a resident surgeon 7–11 years post graduation was associated with significantly increased odds of HACs (1.86, 1.50–2.31, p < 0.001).

Conclusion

Our data demonstrate a strong correlation between these three HACs following bariatric surgery and factors intrinsic to the bariatric patient population. This calls into question the non-payment policy for inherent patient factors on which they cannot have impact. These findings are important to help inform health care policy decisions regarding access to care for bariatric surgery patients.     

Endoscopic third ventriculostomy: can we predict success during surgery?

Endoscopic third ventriculostomy (ETV) is widely used as an alternative technique for hydrocephalus treatment. ETV success or failure may be influenced by numerous factors. In this study, we have analyzed preoperative and intraoperative risk factors and suggest an intraoperative scale to predict etV failure. Fifty-one patients (27 adults and 24 children) underwent an etV at Carlos Haya University Hospital, Malaga. Intraoperative video records were assessed and the following intraoperative findings were recorded: (1) abnormal ventricular anatomy, (2) intraoperative incident, (3) Liliequist membrane opening in a second endoscopic maneuver, (4) thickened or scarred membranes in the subarachnoid space, (5) absence or “weakness” of pulsation of third ventricle floor at etV completion, and (6) floppy premammillary membrane that needs edge coagulation. An intraoperative scale ranging from 0 to 6 points was performed. A significant relation was found between a higher result on the prognosis scale and etV failure (p?<?0.0001). An absence or weakness of pulsation of the third ventricle floor at etV completion was significantly related to etV failure (p?<?0.0001). The presence of thickened or scarred membranes in the subarachnoid space was significantly related to etV failure (p?<?0.04) as well as the Liliequist membrane opening in a second endoscopic maneuver (p?<?0.008). Intraoperative factors should be taken into account for prediction of etV success. More studies with larger case series are needed to determine the influence of all intraoperative factors over etV success.     

Presidential address to the 1998 American Venous Forum: Where are we now? Where are we going? Inching forward

J Vasc Surg 1998;28:761-6.     

Computer-assisted knee surgery, what can we expect?

Navigation systems for operative assistance in knee joint surgery have been established in the last 5 years. Among the large number of variable systems, the image-free kinematic systems have won widespread acceptance. The C-arm based systems are not superior to the image-free systems. The CT-based systems are advantageous in completely destroyed joints (with marked joint erosion) or advanced congenital or traumatic deformities. The intraoperatively-performed Iso-C (3D) technique presents data sets in CT-quality, but because of its small data volume currently is limited to the reconstruction of articular surfaces following fractures. The use of image-free navigation in resurfacing knee arthroplasty is in the meantime beyond controversy whereby deviations in the mechanical axis from normal values can be significantly reduced. For high tibial osteotomies navigation modules will be soon available for marketing. However, with these modules, intraoperative imaging is indispensable, but it will be image-free in the future. The early clinical results are promising. Cruciate ligament navigation is not yet a clinical standard be-cause of the considerable associated time expenditure. The appropriate modules are still under development.