Pearson, David

The patient is a male in his 60s with morbid obesity and end-stage renal disease secondary to hypertension and diabetes. After a lifelong struggle with weight management, he was approved for bariatric surgery. Following completion of the bariatric clinic courses, he underwent laparoscopic Roux-en-Y gastric bypass. There were no intraoperative complications nor divergences from our routine practice. Postoperatively, the patient resumed peritoneal dialysis (PD) on postoperative day zero. He tolerated the operation and dialysis well, noting that the drained abdominal fluid remained serosanguinous for 5 days after surgery. While the traditional practice after intra-abdominal surgery is to temporarily transition to haemodialysis in patients who require dialysis, we demonstrate that immediate resumption of PD may be safe and efficacious. However, patients should be educated regarding the temporary change in colour of the drained intra-abdominal fluid. More robust data is required for further research and future practice guideline development.

Background: The purpose of this study was to evaluate monetary trends in Medicare reimbursement rates for 30 abdominal wall reconstruction surgical procedures over a 20-year period (2000 to 2020). Methods: The Physician Fee Schedule Look-Up Tool from the Centers for Medicare and Medicaid Services was used for each of the 30 included current CPT codes, and reimbursement data were extracted. Monetary data were adjusted for inflation to 2020 U.S. dollars using changes to the United States consumer price index. The R2 values for the average annual percentage change and the average total percentage change in reimbursement were calculated based on these adjusted trends for all included procedures. Results: After adjusting for inflation, the average reimbursement for all procedures decreased by 17.1% from 2000 to 2020. The greatest mean decrease was observed for CPT code 49568 (the implantation of mesh or other prosthesis for open incisional or ventral hernia repair or mesh for closure of débridement for necrotizing soft-tissue infection, −34.4%). The only procedure with an increased adjusted reimbursement rate throughout the study period was CPT code 20680 (+3.9%). From 2000 to 2020, the adjusted reimbursement rate for all included procedures decreased by an average of 0.85% each year, with an average R2 value of 0.78, indicating a stable decline throughout the study period. Conclusions: Reimbursement rates are declining when adjusted for inflation. Increased awareness of these trends is helpful to maintain access to optimal abdominal reconstruction care in the United States.

Objective To evaluate the extent to which silicone rubber mandibular implant (Silastic; Dow Corning, Midland, Mich) pressure and placement (supraperiosteal or subperiosteal) affect underlying mandibular resorption. Design A randomized, controlled animal trial. Subjects Ten mixed-breed adult hounds. Interventions Each animal's mandible was implanted with 6 Silastic blocks, 3 inserted supraperiosteally and 3 subperiosteally. Within each grouping of 3 implants, pressure was varied from "minimum" to "moderate" to "maximum" by compressing the implant with titanium miniplates. After 4 months, the animals were killed and their mandibles sectioned for microscopic examination. Results Mandibular resorption occurred in varying degrees beneath all implants by the end of the study period. The extent of resorption was consistent with retrospective studies in humans. No statistically significant difference was found between supraperiosteal or subperiosteal placement of the implants. However, higher-pressure implants tended to produce less resorption than lower-pressure implants. Conclusions While some bone resorption seems inevitable with Silastic mandibular implants, these results would seem to suggest that the placement of implants above or below the periosteum need not be a concern for the surgeon attempting to minimize this consequence. On the other hand, increased pressure may actually decrease resorption, contrary to current assumptions.