Predictors of outpatient resource utilization following ventral and incisional hernia repair.

Abstract

Little is known about the predictors of increased ambulatory costs following open ventral and incisional hernia repair (VIHR); however, postoperative complications would be expected to be associated with an increased burden on outpatient resources. The purpose of this study is to evaluate the impact of perioperative factors on outpatient resource utilization following VIHR. With IRB approval, the surgery scheduling system was queried to identify all cases of VIHR done at our institution over 3years. Cases with other procedures done at time of VIHR were excluded. National Surgical Quality Improvement Program clinical data, physician billing data which included market and payor across cases, and medical record review data were combined and evaluated in order to quantify care and predictors of usage during the 6months postoperatively. Data were analyzed for 308 patients. Median patient age was 52years (SD=13.3), and over half were female. The number of outpatient visits to the surgical office varied from 0 to 18 [median=2; interquartile range (IQR)=1-3]. CDC Wound Class >1 was associated with increase of mean 1.4 visits (IQR: 0.5-2.3); p=0.003. Component separation, longer duration of operation, and increased mesh size were also predictive of increased number of office visits (p<0.01). Postoperative infected seroma/seroma requiring drainage added a mean 2.3 visits (IQR: 1.3-3.3), (p<0.001); and deep wound infection added a mean 3.9 visits (IQR: 1.9-5.9) (p<0.001). Postoperative complications confer a significant burden for patients and to the outpatient surgical office. In an era in which improved quality and cost-efficiency has become imperative, measures to decrease risk of postoperative complications particularly for more complex VIHR would be expected to decrease resource utilization and increase value of care.