Predictors of postoperative opioid use in ventral and incisional hernia repair

BACKGROUND

One in two ventral and incisional hernia repair (VIHR) patients have preoperative opioid prescription within a year before procedure. The study's aim was to investigate risk factors of increased postoperative prescription filling in patients with or without preoperative opioid prescription.

METHODS

VIHR cases from 2013 to 2017 were reviewed. State prescription drug monitoring program data were linked to patient records. The primary endpoint was cumulative opioid dose dispensed through post-discharge day 45. Morphine milligram equivalent (MME) was used for uniform comparison.

RESULTS

205 patients were included in the study (average age 53.5 years; 50.7% female). Over 35% met criteria for preoperative opioid use. Preoperative opioid tolerance, superficial wound infection, current smoking status, and any dispensed opioids within 45 days of admission were independent predictors for increased postoperative opioid utilization (p < 0.001).

CONCLUSION

Preoperative opioid use during 45-day pre-admission correlated strongly with postoperative prescription filling in VIHR patients, and several independent risk factors were identified.

Comparative long-term effectiveness between ventral hernia repairs with biosynthetic and synthetic mesh

BACKGROUND

Debate exists regarding the most appropriate type of mesh to use in ventral hernia repair (VHR). Meshes are broadly categorized as synthetic or biologic, each mesh with individual advantages and disadvantages. More recently developed biosynthetic mesh has characteristics of both mesh types. The current study aims to examine long-term follow-up data and directly compare outcomes-specifically hernia recurrence-of VHR with biosynthetic versus synthetic mesh.

METHODS

With IRB approval, consecutive cases of VHR (CPT codes 49,560, 49,561, 49,565, and 49,566 with 49,568) performed between 2013 and 2018 at a single institution were reviewed. Local NSQIP data was utilized for patient demographics, perioperative characteristics, CDC Wound Class, comorbidities, and mesh type. A review of electronic medical records provided additional variables including hernia defect size, postoperative wound events to six months, duration of follow-up, and incidence of hernia recurrence. Longevity of repair was measured using Kaplan-Meier method and adjusted Cox proportional hazards regression.

RESULTS

Biosynthetic mesh was used in 101 patients (23%) and synthetic mesh in 338 (77%). On average, patients repaired using biosynthetic mesh were older than those with synthetic mesh (57 vs. 52 years; p = .008). Also, ASA Class ≥ III was more common in biosynthetic mesh cases (70.3% vs. 55.1%; p = .016). Patients repaired with biosynthetic mesh were more likely than patients with synthetic mesh to have had a prior abdominal infection (30.7% vs. 19.8%; p = .029). Using a Kaplan-Meier analysis, there was not a significant difference in hernia recurrence between the two mesh types, with both types having Kaplan Meir 5-year recurrence-free survival rates of about 72%.

CONCLUSION

Using Kaplan-Meier analysis, synthetic mesh and biosynthetic mesh result in comparable hernia recurrence rates and surgical site infection rates in abdominal wall reconstruction patients with follow-up to as long as five years.

The contribution of specific enhanced recovery after surgery (ERAS) protocol elements to reduced length of hospital stay after ventral hernia repair

BACKGROUND

Ventral hernia repair (VHR) is a commonly performed procedure that may be associated with prolonged hospitalization. Enhanced recovery after surgery (ERAS) protocols are intended to decrease hospital length of stay (LOS) and improve outcomes. This study evaluated the impact of compliance with individual VHR ERAS elements on LOS.

METHODS

With IRB approval, a medical record review (perioperative characteristics, clinical outcomes, compliance with ERAS elements) was conducted of open VHR consecutive cases performed in August 2013-July 2017. The ERAS protocol was implemented in August 2015; elements in place prior to implementation were accounted for in compliance review. Clinical predictors of LOS were determined through forward regression of log-transformed LOS. The effects of specific ERAS elements on LOS were assessed by adding them to the model in the presence of the clinical predictors.

RESULTS

Two-hundred and thirty-four patients underwent VHR (109 ERAS, 125 pre-ERAS). Across all patients, the mean LOS was 5.4 days (SD = 3.3). Independent perioperative predictors (P's < 0.05) of increased LOS were CDC Wound Class III/IV (38% increase above the mean), COPD (35%), prior infected mesh (21%), concomitant procedure (14%), mesh size (3% per 100 cm²), and age (8% increase per 10 years from mean age). Formal ERAS implementation was associated with a 15% or about 0.7 days (95% CI 6%-24%) reduction in mean LOS after adjustment. Compliance with acceleration of intestinal recovery was low (25.6%) as many patients were not eligible for alvimopan use due to preoperative opioids, yet when achieved, provided the greatest reduction in LOS (- 36%).

CONCLUSIONS

Implementation of an ERAS protocol for VHR results in decreased hospital LOS. Evaluation of the impact of specific ERAS element compliance to LOS is unique to this study. Compliance with acceleration of intestinal recovery, early postoperative mobilization, and multimodal pain management standards provided the greatest LOS reduction.

Preoperative opioid use and incidence of surgical site infection after repair of ventral and incisional hernias

BACKGROUND

Preoperative opioid use is a risk factor for complications after some surgical procedures. The purpose of this study was to investigate the influence of preoperative opiates on outcomes after ventral hernia repair.

METHODS

With institutional review board approval, we conducted a retrospective review of consecutive ventral hernia repair cases during a 4-y period.

RESULTS

A striking 48% of the total 234 patients met criteria for preoperative opioid use. Preoperative characteristics and operative details were similar between patient groups (preoperative opioid use versus no preoperative opioid use). Median duration of hospital stay trended toward an increase for opioid users versus nonopioid users (P = .06). Return of bowel function was delayed in opioid users compared with nonopioid users (P = .018). Incidence of superficial surgical site infection was increased among patients who used opioids preoperatively (27% vs 8.3%; P <.001) and remained so after multivariable logistic regression, (adjusted odds ratio 2.9, 95% confidence interval 1.2-6.7; P = .013).

CONCLUSION

Among patients undergoing ventral hernia repair, those with preoperative opioid use experienced an increased incidence of superficial surgical site infection compared with patients without preoperative opioid use. Further study is needed to understand the relationship between opioid use and surgical site infection after ventral hernia repair.

Parastomal Hernia Repair Outcomes: A Nine-Year Experience

Parastomal hernias (PHs) frequently complicate enterostomy creation. Decision for PH repair (PHR) is driven by patient symptoms due to the frequency of complications and recurrences. The European Hernia Society (EHS) PH classification is based on the PH defect size and the presence/ absence of concomitant incisional hernia. The aim of this study was to evaluate PHR outcomes based on EHS classification. An Institutional Review Board–approved retrospective review of a prospective database between 2009 and 2017 was performed. Patient demographics, enterostomy type, EHS classification, operative technique, and clinical outcomes (postoperative complications, 30-day readmission, and PH recurrence) were obtained. Cases were analyzed by EHS classifications I and II (SmallPH) versus III and IV (LargePH). Sixty-two patients underwent PHR (35: SmallPH, 27: LargePH). Patient groups (SmallPH vs LargePH) were similar based on American Society of Anesthesiologists Class III and obesity. Hernia recurrence was seen in 26 per cent of repairs with no difference between groups. The median recurrence-free survival was 3.9 years. There was no difference in superficial SSI, deep SSI, nonwound complications, or readmission between SmallPH and LargePH. Both small and large PHs experience similar outcomes after repair. Strategies to improve outcomes should be developed and implemented universally across all EHS PH classes.

Totally extraperitoneal approach for open complex abdominal wall reconstruction

BACKGROUND

Ventral hernia repair is typically performed via a transabdominal approach and the peritoneal cavity is opened and explored. Totally extraperitoneal ventral hernia repair (TEVHR) facilitates dissection of the hernia sac without entering the peritoneal cavity. This study evaluates our experience of TEVHR, addressing technique, decision-making, and outcomes.

METHODS

This is an IRB-approved retrospective review of open TEVHR performed between January 2012 and December 2016. Medical records were reviewed for patient demographics, operative details, postoperative outcomes, hospital readmissions, and reoperations.

RESULTS

One hundred sixty-six patients underwent TEVHR (84 males, 82 females) with a mean BMI range of 30-39. Eighty-six percent of patients underwent repair for primary or first-time recurrent hernia, and 89% CDC wound class I. Median hernia defect size was 135 cm². Hernia repair techniques included Rives-Stoppa (34%) or transversus abdominis release (57%). Median operative time was 175 min, median blood loss 100 mL, and median length of stay 4 days. There were no unplanned bowel resections or enterotomies. Four cases required intraperitoneal entry to explant prior mesh. Wound complication rate was 27%: 9% seroma drainage, 18% superficial surgical site infection (SSI), and 2% deep space SSI. Five patients (3%) required reoperation for wound or mesh complications. Over the study, four patients were hospitalized for postoperative small bowel obstruction and managed non-operatively. Of the 166 patients, 96%, 54%, and 44% were seen at 3-month, 6-month, and 12-month follow-ups, respectively. Recurrences were observed in 2% of patients at 12-month follow-up. One patient developed an enterocutaneous fistula 28 months postoperatively.

CONCLUSIONS

TEVHR is a safe alternative to traditional transabdominal approaches to ventral hernia repair. The extraperitoneal dissection facilitates hernia repair, avoiding peritoneal entry and adhesiolysis, resulting in decreased operative times. In our study, there was low risk for postoperative bowel obstruction and enterotomy. Future prospective studies with long-term follow-up are required to draw definitive conclusions.

Laparoscopic parastomal hernia repair delays recurrence relative to open repair

BACKGROUND

Mesh repair of parastomal hernia is widely accepted as superior to non-mesh repair, yet the most favorable surgical approach is a subject of continued debate. The aim of this study was to compare the clinical outcomes of open versus laparoscopic parastomal hernia repair.

METHODS

An IRB-approved retrospective review was conducted comparing laparoscopic (LPHR) or open (OPHR) parastomal hernia repair performed between 2009 and 2017 at our facilities. Patient demographics, preoperative characteristics, operative details, and clinical outcomes were compared by surgical approach. Subgroup analysis was performed by location of mesh placement. Repair longevity was measured using Kaplan-Meier method and Cox proportional hazards regression. Intention to treat analysis was used for this study based on initial approach to the repair.

RESULTS

Sixty-two patients (average age of 61 years) underwent repair (31 LPHR, 31 OPHR). Patient age, gender, BMI, ASA Class, and comorbidity status were similar between OPHR and LPHR. Stoma relocation was more common in OPHR (32% vs 7%, p = .022). Open sublay subgroup was similar to LPHR in terms of wound class and relocation. Open "Other" and Sublay subgroups resulted in more wound complications compared to LPHR (70% and 48% vs 27%, p = .036). Operative duration and hospital length of stay were less with LPHR (p < .001). After adjustment for prior hernia repair, risk of recurrence was higher for OPHR (p = .022) and Open Sublay and Other subgroups compared to LPHR (p = .005 and p = .027, respectively).

CONCLUSIONS

Laparoscopic repair of parastomal hernias is associated with shorter operative duration, decreased length of stay, fewer short-term wound complications, and increased longevity of repair compared to open repairs. Direct comparison of repair longevity between LPHR and OPHR with mesh using Kaplan-Meier estimate is unique to this study. Further study is warranted to better understand methods of parastomal hernia repair associated with fewer complications and increased durability.

Costs and Complications Associated with Infected Mesh for Ventral Hernia Repair

Background: Mesh hernia repair is widely accepted because of the associated reduction in hernia recurrence compared with suture-based repair. Despite initiatives to reduce risk, mesh infection and mesh removal are a significant challenge. In an era of healthcare value, it is essential to understand the global cost of care, including the incidence and cost of complications. The purpose of this study was to identify the outcomes and costs of care of patients who required the removal of infected hernia mesh. Methods: A review of databases from 2006 through June 2018 identified patients who underwent both ventral hernia repair (VHR) and re-operation for infected mesh removal. Patient demographic and operative details for both procedures, including age, Body Mass Index, mesh type, amount of time between procedures, and information regarding interval procedures were obtained. Clinical outcome measures were the length of the hospital stay, hospital re-admission, incision/non-incision complications, and re-operation. Hospital cost data were obtained from the cost accounting system and were combined with the clinical data for a cost and clinical representation of the cases. Results: Thirty-four patients underwent both VHR and removal of infected mesh material over the 12-year time frame and were included in the analyses; the average age at VHR was 48 years, and 16 patients (47%) were female. Following VHR, 21 patients (62%) experienced incision complications within 90 days post-operatively, the complications ranging from superficial surgical site infection (SSI) to evisceration. A mean of 22.65 months passed between procedures. After mesh removal, 16 patients (47%) experienced further incisional complications; and 22 (65%) patients had at least one re-admission. Eighteen patients (53%) required a minimum of one additional related operative procedure after mesh removal. Median hospital costs nearly doubled (p < 0.001) for the mesh removal ($23,841 [interquartile range {IQR} $13,596-$42,148]) compared with the VHR admission ($13,394 [IQR $8,424-$22,161]) not accounting for re-admission costs. A majority experienced hernia recurrence subsequent to mesh removal. Conclusions: Mesh infection after hernia repair is associated with significant morbidity and costs. Hospital re-admission, re-operations, and recurrences are common among these patients, resulting in greater healthcare resource utilization. Development of strategies to prevent mesh infection, identify patients most likely to experience infectious complications, and define best practices for the care of patients with mesh infection are needed.

Clinical and Quality of Life Assessment of Patients Undergoing Laparoscopic Hiatal Hernia Repair

Hiatal hernia repair (HHR) and fundoplication are similarly performed among all hiatal hernia types with similar techniques. This study evaluates the effect of HHR using a standardized technique for cruroplasty with a reinforcing polyglycolic acid and trimethylene carbonate mesh (PGA/TMC) on patient symptoms and outcomes. A retrospective review of patient perioperative characteristics and postoperative outcomes was conducted for cases of laparoscopic hiatal hernia repair (LHHR) using a PGA/TMC mesh performed over 21 months. Gastroesophageal reflux disease symptom questionnaire responses were compared between preoperative and three postoperative time points. Ninety-six patients underwent LHHR with a PGA/TMC mesh. Post-operatively, the number of overall symptoms reported by patients decreased across all postoperative periods ( P < 0.001). Patients reported a significant reduction in antacid use long term ( P < 0.001). Laryngeal and regurgitation symptoms decreased at all time points ( P < 0.05). There was no difference in dysphagia preoperatively and postoperatively at any time point. Individuals undergoing HHR with PGA/TMC mesh experienced improved regurgitation and laryngeal symptoms, and decreased use of antacid medication.

Clinical and Quality of Life Assessment of Patients Undergoing Laparoscopic Hiatal Hernia Repair

Hiatal hernia repair (HHR) and fundoplication are similarly performed among all hiatal hernia types with similar techniques. This study evaluates the effect of HHR using a standardized technique for cruroplasty with a reinforcing polyglycolic acid and trimethylene carbonate mesh (PGA/TMC) on patient symptoms and outcomes. A retrospective review of patient perioperative characteristics and postoperative outcomes was conducted for cases of laparoscopic hiatal hernia repair (LHHR) using a PGA/TMC mesh performed over 21 months. Gastroesophageal reflux disease symptom questionnaire responses were compared between preoperative and three postoperative time points. Ninety-six patients underwent LHHR with a PGA/TMC mesh. Postoperatively, the number of overall symptoms reported by patients decreased across all postoperative periods (P < 0.001). Patients reported a significant reduction in antacid use long term (P < 0.001). Laryngeal and regurgitation symptoms decreased at all time points (P < 0.05). There was no difference in dysphagia preoperatively and postoperatively at any time point. Individuals undergoing HHR with PGA/TMC mesh experienced improved regurgitation and laryngeal symptoms, and decreased use of antacid medication.

Enhanced value with implementation of an ERAS protocol for ventral hernia repair

BACKGROUND

Open ventral hernia repair (VHR) is associated with postoperative complications and hospital readmissions. A comprehensive Enhanced Recovery after Surgery (ERAS) protocol for VHR contributes to improved clinical outcomes including the rapid return of bowel function and reduced infections. The purpose of this study was to compare hospital costs for patients cared for prior to ERAS implementation with patients cared for with an ERAS protocol.

METHODS

With IRB approval, clinical characteristics and postoperative outcomes data were obtained via retrospective review of consecutive VHR patients 2 years prior to and 14 months post ERAS implementation. Hospital cost data were obtained from the cost accounting system inclusive of index hospitalization. Clinical data and hospital costs were compared between groups.

RESULTS

Data for 178 patients (127 pre-ERAS, 51 post-ERAS) were analyzed. Preoperative and operative characteristics including gender, ASA class, comorbidities, and BMI were similar between groups. ERAS patients had faster return of bowel function (p = 0.001) and decreased incidence of superficial surgical site infection (p = 0.003). Hospital length of stay did not vary significantly pre and post ERAS implementation. Inpatient pharmacy costs were increased in ERAS group ($2673 vs. $1176 p < 0.001), but total hospital costs (14,692 vs. 15,151, p = 0.538) were similar between groups.

CONCLUSIONS

Standardization of hernia care via ERAS protocol improves clinical outcomes without impacting total costs.

Validation and Extension of the Ventral Hernia Repair Cost Prediction Model

BACKGROUND

Repair of ventral and incisional hernias remains a costly challenge for health care systems. In a previous study of a single surgeon's elective open ventral hernia repair (VHR) practice, a cost model was developed, which predicted over 70% of hospital cost variation. The purpose of the present study was to evaluate the ventral hernia cost model with multiple surgeons' elective open VHR cases and extending to include nonelective and laparoscopic VHR.

MATERIALS AND METHODS

With the University of Kentucky Institutional Review Board approval, elective and emergent cases of open and laparoscopic VHR performed by multiple surgeons over 3 y were identified. Perioperative variables were obtained from the local American College of Surgeons National Surgery Quality Improvement Program database and electronic medical record review. Hospital cost data were obtained from the hospital cost accounting system. Forward multivariable regression of log-transformed costs identified independent cost drivers (P for entry < 0.05, and P for exit > 0.10).

RESULTS

Of the 387 VHRs, 74% were open repairs; mean age was 55 y, and 52% of patients were female. For open, elective cases (n = 211; mean cost of $19,145), the previously reported six-factor cost model predicted 45% of the total cost variation. With all VHRs included, additional variables were found to independently drive costs, predicting 59% of the total cost variation from the base cost. The biggest cost drivers were inpatient status (+$1013), use of biologic mesh (+$1131), preoperative systemic inflammatory response syndrome/sepsis (+$894), and preoperative open wound (+$786).

CONCLUSIONS

Ventral hernia repair cost variability is predictable. Understanding the independent drivers of cost may be helpful in controlling costs and in negotiating appropriate reimbursement with payers.

Parastomal Hernia Repair Outcomes: A Nine-Year Experience

Parastomal hernias (PHs) frequently complicate enterostomy creation. Decision for PH repair (PHR) is driven by patient symptoms due to the frequency of complications and recurrences. The European Hernia Society (EHS) PH classification is based on the PH defect size and the presence/absence of concomitant incisional hernia. The aim of this study was to evaluate PHR outcomes based on EHS classification. An Institutional Review Board-approved retrospective review of a prospective database between 2009 and 2017 was performed. Patient demographics, enterostomy type, EHS classification, operative technique, and clinical outcomes (postoperative complications, 30-day readmission, and PH recurrence) were obtained. Cases were analyzed by EHS classifications I and II (SmallPH) versus III and IV (LargePH). Sixty-two patients underwent PHR (35: SmallPH, 27: LargePH). Patient groups (SmallPH vs LargePH) were similar based on American Society of Anesthesiologists Class III and obesity. Hernia recurrence was seen in 26 per cent of repairs with no difference between groups. The median recurrence-free survival was 3.9 years. There was no difference in superficial SSI, deep SSI, nonwound complications, or readmission between SmallPH and LargePH. Both small and large PHs experience similar outcomes after repair. Strategies to improve outcomes should be developed and implemented universally across all EHS PH classes.

Perioperative factors associated with pain following open ventral hernia repair

BACKGROUND

Effective pain control following open ventral and incisional hernia repair (VHR) impacts all aspects of patient recovery. To reduce opioid use and enhance pain management, multimodal therapy is thought to be beneficial. The purpose of this study was to identify patient characteristics associated with perioperative patient-reported pain scores.

METHODS

With IRB approval, surgical databases were searched for cases of open VHR performed over 3 years. Based on a retrospective chart review, modes of pain management and visual analog scale (VAS) pain scores were recorded in 12-h intervals to hospital discharge or to 8 days post-operation. Forward stepwise multivariable regression assessed the independent contribution of the perioperative factors to VAS pain scores.

RESULTS

Included in the analyses were 175 patients that underwent VHR. Average age was 55 years (+/- 12.8), and half were female (50.9%). Factors independently associated with increased preoperative VAS pain scores included preoperative opioid use, preoperative open wound, CDC Wound Class II, and prior hernia repair(s). Patients with epidural for postoperative pain had significantly decreased VAS pain scores across the time continuum. Operative factors significantly associated with increased preoperative VAS pain score included median hernia defect size, concomitantly performed procedure(s), duration of operation, and estimated blood loss. Greater preoperative VAS pain score predicted increased pain at each postoperative time point (all p < .05).

CONCLUSIONS

Preoperative pain and opioid use are associated with increased pain postoperatively. Epidural analgesia effectively results in decreased patient-reported pain. Increased operative complexity is associated with increased preoperative pain scores.

Professional fee payments by specialty for inpatient open ventral hernia repair: who gets paid for treating comorbidities and complications?

BACKGROUND

The purpose of this study was to determine perioperative professional fee payments to providers from different specialties for the care of patients undergoing inpatient open ventral hernia repair (VHR).

METHODS

Perioperative data of patients undergoing VHR at a single center over 3 years were selected from our NSQIP database. 180-day follow-up data were obtained via retrospective review of records and phone calls to patients. Professional fee payments (PFPs) to all providers were obtained from our physician billing system for the VHR hospitalization, the 180 days prior to operation (180Prior) and the 180 days post-discharge (180Post).

RESULTS

PFPs for 283 cases were analyzed. Average total 360-day PFPs per patient were $3409 ± SD 3294, with 14.5% ($493 ± 1546) for services in the 180Preop period, 72.5% ($2473 ± 1881) for the VHR hospitalization, and 13.0% ($443 ± 1097) in the 180Postop period. The surgical service received 62% of PFPs followed by anesthesia (18%), medical specialties (9%), radiology (6%), and all other provider services (5%). Medical specialties received increased PFPs for care of patients with COPD and HCT < 38% ($90 and $521, respectively) and for the pulmonary complications ($2471) and sepsis ($2714) that correlated with those patient comorbidities; surgeons did not. Operative duration, mesh size, and separation of components were associated with increased surgeon PFPs (p < .05). At 6 months, wound complications were associated with increased surgeon and radiology payments (p < .01).

CONCLUSIONS

Management of acute comorbid conditions and the associated higher postoperative morbidity is not reimbursed to the surgeon under the 90-day global fee. These represent opportunity costs of care that pressure busy surgeons to select against these patients or to delegate more management to their medical specialty colleagues, thereby increasing total system costs. A comorbid risk adjustment of procedural reimbursement is warranted. In negotiating bundled payments, surgeon groups should keep in mind that surgeon reimbursement, unlike medical specialty and hospital reimbursement, have been bundled since the 1990s.

Early outcomes of an enhanced recovery protocol for open repair of ventral hernia

BACKGROUND

Enhanced recovery after surgery (ERAS) protocols are evidence-based quality improvement pathways reported to be associated with improved patient outcomes. The purpose of this study was to compare short-term outcomes for open ventral hernia repair (VHR) before and after implementation of an ERAS protocol.

METHODS

After obtaining IRB approval, surgical databases were searched for VHR cases for two years prior and eleven months after protocol implementation for retrospective review. Groups were compared on perioperative characteristics and clinical outcomes using chi-square, Fisher's exact, or Mann-Whitney U test, as appropriate.

RESULTS

One hundred and seventy-one patients underwent VHR (46 patients with ERAS protocol in place and 125 historic controls). Age, gender, ASA Class, comorbidities, and smoking status were similar between the two groups. Body mass index was lower among ERAS patients (p = .038). ERAS patients had earlier return of bowel function (median 3 vs. 4 days) (p = .003) and decreased incidence of superficial surgical site infection (SSI) (7 vs. 25%) (p = .008) than controls.

CONCLUSION

An ERAS protocol for VHR demonstrated improved patient outcomes. A system-wide culture focused on enhanced recovery is needed to ensure improved patient outcomes.

Concomitant open ventral hernia repair: what is the financial impact of performing open ventral hernia with other abdominal procedures concomitantly?

BACKGROUND

Open ventral hernia repair (VHR) is often performed in conjunction with other abdominal procedures. Clinical outcomes and financial implications of VHR are becoming better understood; however, financial implications of concomitant VHR during other abdominal procedures are unknown. This study aimed to evaluate the financial implications of adding VHR to open abdominal procedures.

METHODS

This IRB-approved study retrospectively reviewed hospital costs to 180-day post-discharge of standalone VHRs, isolated open abdominal surgeries (bowel resection or stoma closure, removal of infected mesh, hysterectomy or oophorectomy, panniculectomy or abdominoplasty, open appendectomy or cholecystectomy), performed at our institution from October 1, 2011 to September 30, 2014. The perioperative risk data were obtained from the local National Surgery Quality Improvement Program (NSQIP) database, and resource utilization data were obtained from the hospital cost accounting system.

RESULTS

345 VHRs, 1389 open abdominal procedures as described, and 104 concomitant open abdominal and VHR cases were analyzed. The VHR-only group had lower ASA Class, shorter operative duration, and a higher percentage of hernias repaired via separation of components than the concomitant group (p < 0.001). The median hospital cost for VHR-alone was $12,900 (IQR: $9500-$20,700). There were significant increases to in-hospital costs when VHR was combined with removing an infected mesh (63%) or with bowel resections or stoma closures (0.7%). The addition of VHR did not cause a significant change in 180-day post-discharge costs for any of the procedures.

CONCLUSIONS

This study noted decreased costs when combining VHR with panniculectomy or abdominoplasty and hysterectomy or oophorectomy. For removal of infected mesh and bowel resection or stoma closure, waiting, when feasible, is recommended. Given the impending changes in financial reimbursements in healthcare in the United States, it is prudent that future studies evaluate further the clinical and fiscal benefit of concomitant procedures.

Complex Ventral Hernia Repair with Acellular Dermal Matrices: Clinical and Quality of Life Outcomes

Acellular dermal matrices (ADMs) are used in conjunction with complex hernia repair, but their efficacy is often debated. This study assesses clinical and quality of life (QOL) outcomes in multiply comorbid patients undergoing complex ventral hernia repair using ADMs. After obtaining institutional review board approval, a prospective study was conducted evaluating patients undergoing complex ventral incisional hernia repair with abdominal wall reconstruction (AWR) using either human (Flex HD) or porcine ADM (Strattice). Patient accrual occurred over three years. Demographics, comorbid conditions, and operative details were recorded. Postoperative two-week, six-week, six-month, and one-year follow-up occurred. Primary outcomes measures include wound occurrence, QOL parameters using the Short Form-12 health survey, and hernia recurrence. Groups were compared using chi-squared, Fisher's exact, Mann-Whitney U, or t tests as appropriate. Significance was set at P < 0.05. Thirty-five patients underwent hernia repair using ADM: mean age = 58 years, mean body mass index = 34 kg/m2, >50 per cent Centers for Disease Control and Prevention Wound Class II and above, >50 per cent recurrent hernia repair, and 25 per cent current or previous mesh infection. Twenty patients (57%) experienced surgical site occurrences, 15 (43%) wound infections, and 5 (14%) recurrences with a median follow-up of one year. All Short Form-12 QOL indicators improved at 12 months compared with baseline (NS). Outcomes were similar between mesh types. In conclusion, abdominal wall reconstruction for complex hernias using biologic materials is safe but has significant morbidity. Wound complications occur in over half of all patients and are not impacted by ADM type. There is no decrement in QOL one year after hernia repair despite associated morbidity.

Ventral and incisional hernia: the cost of comorbidities and complications

INTRODUCTION

Ventral and incisional hernia repair (VIHR) is among the most frequently performed abdominal operations with significant incidence of postoperative complications and readmissions. Payers are targeting increased "value" of care through improved outcomes and reduced costs. Cost data in clinically relevant terms is still rare. This study aims to identify hospital costs associated with clinically relevant factors in order to facilitate strategies by surgeons to enhance the value of VIHR.

METHODS

An IRB-approved retrospective review of VIHRs performed at the University of Kentucky from April 2009 through September 2013 was conducted. NSQIP clinical data and hospital cost data were matched. Operating room (ORC), total encounter (TEC), and 90-day postdischarge (90PDC) hospital costs were analyzed relative to clinical variables using non-parametric tests.

RESULTS

In total 385 patients that underwent VIHR during the time period were included in the analyses. Considering all VIHRs, median [interquartile range (IQR)] ORC was $6900 ($5600-$10,000); TEC was $10,700 ($7500-$18,600); and 90PDC was $0 ($0-$800). Compared to all VIHRs, ASA Class ≥ 3 was associated with increased ORC and TEC (p < .001), and 90PDC (p < .01). Preoperative open wound was associated with increased ORC and TEC (p < .001). Numerous operative variables were associated with both increased ORC and TEC. Wound Class > 1 was associated with increased ORC and TEC (p < .001) and 90PDC (p < .01). Inpatient occurrence of any complication was associated with increased TEC and 90PDC (p < .001).

CONCLUSIONS

ASA Class ≥ 3, Wound Class > 1, open abdominal wound, and postoperative complications significantly increase costs. Although the hospital encounter represents the majority of the cost associated with VIHR, additional costs are incurred during the 90-day postoperative period. An appreciation of global costs is essential in developing alternative payment models for hernia in order to provide the greatest value in hernia care.

Abdominal Wall Reconstruction: The Uncertainty of the Impact of Drain Duration upon Outcomes

Drains are commonly used after abdominal wall reconstruction (AWR) to prevent seroma formation. Drain management is subjective, and the merits and drawbacks of drains are not well understood. After receiving Institutional Review Board approval, we queried our prospectively maintained surgical database for AWR cases from 2009 to 2012 to ascertain if the number of days postoperatively that drains are left in place impacts the incidence of surgical site complications. Number of drains, drain duration, wound complications, and interval to development of complications were recorded. Wound complications were defined as superficial cellulitis, seroma, hematoma, superficial infection, and deep infection. Among 117 AWRs, we investigated the 64 cases with Centers for Disease Control grade one wound classification. Longest drain duration varied widely (2-171 days postoperatively; mean = 22 days). Cases were divided into four groups based on duration prior to removal of all drains: ≤7 days (n = 18), 8 to 14 days (n = 16), 15 to 28 days (n = 18), or ≥29 days (n = 12). No significant relationship was found between incidence of seroma/hematoma and days postoperatively of last drain removal. Wound complications increased linearly with drain time. Using logistic regression to adjust for obesity (body mass index >35kg/m(2)), drain duration >2 weeks and operative time >220 minutes, only body mass index >35 remained an independent predictor of wound occurrence, P < 0.05. Wound complications occur frequently after AWR. Wound infections occur more commonly among patients with drains in place for more than 2 weeks. Strategies to reduce drain duration require furthermore investigation.

Abdominal Wall Reconstruction: The Uncertainty of the Impact of Drain Duration upon Outcomes

Drains are commonly used after abdominal wall reconstruction (AWR) to prevent seroma formation. Drain management is subjective, and the merits and drawbacks of drains are not well understood. After receiving Institutional Review Board approval, we queried our prospectively maintained surgical database for AWR cases from 2009 to 2012 to ascertain if the number of days postoperatively that drains are left in place impacts the incidence of surgical site complications. Number of drains, drain duration, wound complications, and interval to development of complications were recorded. Wound complications were defined as superficial cellulitis, seroma, hematoma, superficial infection, and deep infection. Among 117 AWRs, we investigated the 64 cases with Centers for Disease Control grade one wound classification. Longest drain duration varied widely (2–171 days postoperatively; mean = 22 days). Cases were divided into four groups based on duration prior to removal of all drains: ≤ 7 days (n = 18), 8 to 14 days (n = 16), 15 to 28 days (n = 18), or ≥29 days (n = 12). No significant relationship was found between incidence of seroma/hematoma and days postoperatively of last drain removal. Wound complications increased linearly with drain time. Using logistic regression to adjust for obesity (body mass index >35kg/m2), drain duration >2 weeks and operative time >220 minutes, only body mass index >35 remained an independent predictor of wound occurrence, P < 0.05. Wound complications occur frequently after AWR. Wound infections occur more commonly among patients with drains in place for more than 2 weeks. Strategies to reduce drain duration require furthermore investigation.

Abdominal Wall Reconstruction: A Comparison of Totally Extraperitoneal and Transabdominal Preperitoneal Approaches

BACKGROUND

Abdominal wall reconstruction for complex ventral and incisional hernias is associated with significant complications. Commonly, the peritoneal cavity is opened and adhesiolysis is performed with the potential for enterotomy. A totally extraperitoneal (TE) approach to abdominal wall reconstruction is feasible in many ventral hernia repairs and can reduce visceral injuries without impacting other outcomes. This study compares outcomes after retro-rectus ventral hernia repairs with TE and transabdominal (TA) preperitoneal approaches.

STUDY DESIGN

An IRB-approved review of a prospective hernia database was performed for all ventral hernia repairs between 2009 and 2013. Preoperative patient characteristics, including demographics and comorbidities; operative variables, including surgical technique, operative duration, type/size/location of mesh, concomitant procedures, and incidence of inadvertent injury; and patient outcomes in terms of length of stay, wound and nonwound complications, and readmissions or returns to the operating room were obtained. Groups were compared using t-tests, Mann-Whitney U tests, chi-square tests, and Fisher's exact tests as appropriate. Significance was set at p < .05.

RESULTS

One hundred and seventy-five complex abdominal wall reconstructions were performed between 2009 and 2013. Of those, 85 patients underwent hernia repair for CDC grade 1 hernias with retro-rectus mesh placement performed (n = 45 TA, n = 40 TE). Groups did not differ in age, BMI, sex, smoking status, hernia defect size, history of COPD, asthma, hypertension, cancer, or renal failure. More TA patients had diabetes (36% vs. 13%; p = 0.02) and previous hernia repair (73% vs. 45%; p = 0.01) than TE patients. Mesh size was larger in the TE group (625 ± 234 cm(2) vs. 424 ± 214 cm(2); p < .001). There was no difference in enterotomy between TA and TE groups (0% vs. 2%; p = 1.0). However, there was a reduced operative time with TE (170 ± 49 minutes vs. 212 ± 49 minutes; p < .001).

CONCLUSIONS

Abdominal wall reconstruction can be performed safely in a TE fashion. The extraperitoneal approach results in shorter operative duration, but had similar complications when compared with TA preperitoneal approach.

Variation in faculty evaluations of clerkship students attributable to surgical service

OBJECTIVE

The purpose of this study was to determine whether students' performance evaluations by faculty were influenced by the clinical service on which the student was evaluated.

METHODS

Third-year medical students spent 8 weeks rotating on 3 (or 2) surgical services. Typically, students rotate on one 4-week general surgery service and two 2-week subspecialty services. Faculty members rated student performance on 5 characteristics and provided a numeric grade. Data were analyzed to determine whether any significant variations in evaluation patterns emerged.

RESULTS

A total of 1033 evaluations were included in the analyses. Based on an analysis of variance, the numeric grade varied significantly by service (p < 0.001). The partial eta squared statistic was large (0.21). Ratings of students' performance on specific performance characteristics also varied significantly by service (p < 0.001).

CONCLUSIONS

The assessment of a surgical student's clinical performance is influenced by the specific services on which he/she has rotated and may be related to the length of the rotation. Research is needed to determine whether the differences among services should be considered as a source of error in grading or considered to reflect the particular challenge of the service.

Enhancing the clinical skills of surgical residents through structured cancer education

OBJECTIVE

To assess the short and long-term educational value of a highly structured, interactive Breast Cancer Structured Clinical Instruction Module (BCSCIM).

SUMMARY BACKGROUND DATA

Cancer education for surgical residents is generally unstructured, particularly when compared with surgical curricula like the Advanced Trauma Life Support (ATLS) course.

METHODS

Forty-eight surgical residents were randomly assigned to 1 of 4 groups. Two of the groups received the BCSCIM and 2 served as controls. One of the BCSCIM groups and 1 of the control groups were administered an 11-problem Objective Structured Clinical Examination (OSCE) immediately after the workshop; the other 2 groups were tested with the same OSCE 8 months later. The course was an intensive multidisciplinary, multistation workshop where residents rotated in pairs from station to station interacting with expert faculty members and breast cancer patients.

RESULTS

Residents who took the BCSCIM outperformed the residents in the control groups for each of the 7 performance measures at both the immediate and 8-month test times (P < 0.01). Although the residents who took the BCSCIM had higher competence ratings than the residents in the control groups, there was a decline in the faculty ratings of resident competence from the immediate test to the 8-month test (P < 0.004).

CONCLUSIONS

This interactive patient-based workshop was associated with objective evidence of educational benefit as determined by a unique method of outcome assessment.

Junior medical students' perceptions of an introductory hospice experience

INTRODUCTION

The importance of palliative care education in the medical school curriculum is becoming more recognized. The purpose of this study was to assess medical students' perceptions of an introductory hospice experience.

METHODS

Forty-one second-year medical students took part in an introductory hospice experience in which they were acquainted with a wide range of hospice services provided to patients and families by an interdisciplinary team involved in hospice care. In addition, the students visited patients' homes individually with an experienced hospice nurse or social worker. At the end of their experience, the students were asked to complete a multi-item evaluation questionnaire in order to share their perceptions of the hospice experience and their suggestions for improvement of the course.

RESULTS

The students spent an average of four hours on their introductory hospice experience, and they indicated that all of their personal goals for their experience had been met. Suggestions for improvement of the course were to increase the amount of course time allotted and to provide further opportunity to see more patients. Overall, the students rated their experience as "above average" to "excellent."

CONCLUSIONS

According to the medical students who participated, the introductory hospice experience was a worthwhile and valuable educational experience. An equal or increased amount of hospice time should be allotted in the education of future junior medical students.

Cancer pain education: a structured clinical instruction module for hospice nurses

The learning experience with the Cancer Pain Structured Clinical Instruction Module (SCIM), a highly structured skills training course for medical students, has been reported favorably. The purpose of this study was to present the Cancer Pain SCIM to registered nurses employed in a hospice setting. The goal of the study was to pilot test a structured cancer pain educational program for hospice nurses and to determine the perceived effectiveness of this course on the participants' cancer pain assessment and management skills. A multidisciplinary Cancer Pain SCIM was presented to 25 hospice nurses to improve their understanding of the management of cancer pain. The development group identified essential aspects of cancer pain management and then developed checklists defining specific station content. During the 2-hour Cancer Pain SCIM, nurses rotated through 8 stations in groups of 3, spending 15 minutes at each station. Eight instructors and 6 standardized patients, 5 of whom were survivors of cancer, participated in the course. All participants (students, instructors, and patients) evaluated the course, using a 5-point Likert scale (1 = strongly disagree; 5 = strongly agree). Nurses provided self-assessments of their perceived competence on important aspects of cancer pain management both before and after the SCIM. The self-assessment items used a 5-point scale ranging from 1 (not competent) to 5 (very competent). Twenty-five hospice nurses, averaging 4.1 years (range 1-30 years) postgraduation, participated in the Cancer Pain SCIM. Overall, nurses agreed that they improved on each of the 8 teaching items (P < 0.001). The average (SD) pretest score of 2.8 (0.72) improved to 3.8 (0.58) on the post-test (P < 0.001). Nurses believed that their mastery of specific clinical skills, taught in all 8 stations, improved as a result of participation in the course. Nurses strongly agreed (mean +/- SD) that it was beneficial to use patients with cancer in the course (4.6 +/- 0.82). Faculty members enjoyed participating in the course (4.9 +/- 0.35) and indicated a willingness to participate in future courses (4.7 +/- 0.49). Significant perceived learning among hospice nurses took place in all aspects of the Cancer Pain SCIM. Participating nurses, instructors, and patients with cancer appreciated the SCIM format. Nurses and faculty considered the participation of actual patients with cancer highly beneficial. The SCIM format has great potential to improve the quality of cancer pain education.

Cancer pain management skills among medical students: the development of a Cancer Pain Objective Structured Clinical Examination

Recent surveys suggest that most physicians have inadequate knowledge to assess and manage cancer pain; however, the important domain of clinical performance has not yet been clearly evaluated. The Objective Structured Clinical Examination (OSCE) has become a widely- used and accepted method to evaluate the clinical abilities of medical students. The purpose of this study was to develop and test a Cancer Pain OSCE for medical students evaluating their clinical competence in the area of cancer pain management. A four-component Cancer Pain OSCE was developed and presented to 34 third-year medical students during a sixteen-week combined medicine/surgery clerkship. The content of the objective criteria for each component of the OSCE was developed by a multidisciplinary group of pain experts. The OSCE was designed to assess the students' cancer pain management skills of pain history-taking, focused physical examination, analgesic management of cancer pain, and communication of opioid analgesia myths. Actual cancer survivors were used in the five-minute individual stations. The students were asked to complete a cancer pain history, physical examination, manage cancer pain using analgesics, and communicate with a family member regarding opioid myths. Clinical performance was evaluated using pre-defined checklists. Results showed the student's average performance for the history component was the highest of all four components of the examination. Out of 34 points possible on this clinical skills item, students on average (SD) scored 24.5 (5.2), or 72%. For the short-answer analgesic management component of the Cancer Pain OSCE, the overall score was 32%. Most students managed cancer pain with opioids, however, very few prescribed regular opioid use, and the use of adjuvant analgesics was uncommon. Student performance on the focused cancer pain physical examination was, in general, poor. On average students scored 61% on the musculoskeletal system, but only 31% on both the neurological and lymphathic examination. The overall percent score for the cancer pain OSCE was 48%. We conclude that the Cancer Pain OSCE is a useful performance-based tool to test individual skills in the essential components of cancer pain assessment and management. Of the four components of the Cancer Pain OSCE, medical students performed best on the cancer pain history and performed poorly on the cancer pain physical examination. Information gained from this study will provide a foundation on which future small-group medical student structured teaching will be based.

Cancer pain education: the use of a structured clinical instruction module to enhance learning among medical students

The Structured Clinical Instruction Module (SCIM) is an educational format developed for the teaching of clinical and interpersonal skills. The purpose of this study was to develop and pilot-test a SCIM to enhance medical students' learning and understanding about cancer pain assessment and management. The Cancer Pain SCIM was presented to 34 third-year medical students. Eight instructors and six standardized patients (five cancer patients) participated in the course. All participants evaluated the course using a five-point Likert scale (1 = strongly disagree; 5 = strongly agree). Students self-assessed their clinical skills before and after the course using a five-point scale (1 = not competent; 5 = very competent). Students agreed [mean (S.D.)] very strongly that the SCIM was a valuable educational experience [4.4 (0.56)] and that it was beneficial to use actual cancer patients in the SCIM [4.5 (0.63)]. Students believed their skills in the assessment and management of cancer pain significantly improved after the course. The SCIM is a valuable and novel instructional format to teach essential skills in the assessment and management of cancer pain to medical students.

Cancer survivors as standardized patients: an innovative program integrating cancer survivors into structured clinical teaching

BACKGROUND

Increasingly, standardized patients are involved in medical education; however, reports of cancer survivors functioning as standardized patients have not been available. This study describes the participation of cancer survivors as standardized patients in structured clinical teaching.

METHODS

Forty-two cancer survivors, 354 trainees, and 54 faculty members took part in the structured clinical instruction modules (SCIMs) at five academic institutions. After completing the SCIMs, the cancer survivors answered evaluation questionnaire items concerning their perceptions of the course, and all participants (cancer survivors, faculty members, medical students, and residents) rated the benefit of the participation of cancer survivors. The evaluation items were rated on a five-point scale ranging from 1 = "strongly disagree" to 5 = "strongly agree.

RESULTS

The evaluation responses were very positive, and the cancer survivors expressed a strong willingness to participate in future courses. Faculty members, residents, and medical students all rated the benefit of using cancer survivors highly.

CONCLUSIONS

The participation of cancer survivors in structured clinical teaching was considered beneficial not only by the cancer survivors themselves, but also by the faculty members, residents, and medical students who were involved in the educational program. The role of cancer survivors in the education of physicians needs to be expanded.

Improving residents' clinical skills with the structured clinical instruction module for breast cancer: results of a multiinstitutional study. Breast Cancer Education Working Group

BACKGROUND

The purpose of this study was to determine, in a multiinstitutional setting, the effectiveness of the structured clinical instruction module (SCIM) as an instructional format for surgical residents.

METHODS

The breast cancer SCIM is an abbreviated (3-hour) clinical skills course that places residents in realistic clinical settings. The curriculum encompasses all aspects of breast cancer patient assessment. The SCIM was administered to 137 residents at five institutions. Sixty-six faculty members and 52 patients participated. All participants were surveyed with multiitem questionnaires. The residents were also asked to perform a self-assessment of their skills before and after the SCIM.

RESULTS

The SCIM was delivered at all institutions without difficulty. All participants rated the SCIM highly (from "above average" to "outstanding"). Mean ratings (on a 5-point scale) for the overall effectiveness of the SCIM as an educational format follow: [table: see text] The pretest mean (on a 5-point scale) on the self-assessment was 2.46 ("less than competent"); the posttest mean was 3.54 ("more than competent") (p < 0.0001).

CONCLUSIONS

Residents are acutely aware of their deficiencies in understanding breast cancer. The SCIM is a standardized, reproducible, portable, and effective educational vehicle.

The multidisciplinary structured clinical instruction module as a vehicle for cancer education

BACKGROUND

The Structured Clinical Instruction Module (SCIM) modifies the Objective Structured Clinical Examination (OSCE) for teaching purposes. This study determined the effectiveness of a breast cancer SCIM in enhancing residents' clinical skills.

METHODS

Twenty-five residents, 15 faculty members, and 12 breast cancer patients (simulated and actual) participated in the multistation, multidisciplinary SCIM. Afterward, faculty members, residents, and patients evaluated the SCIM. Residents completed an 18-item self-assessment of their skills before and after the SCIM.

RESULTS

All residents, faculty members, and patients rated the SCIM as either outstanding or above average as an educational experience. The residents' self-assessments of their skills were significantly higher after the SCIM than before.

CONCLUSIONS

This study shows that residents are aware of their deficiencies in breast cancer management. The SCIM provides an excellent format for residents to improve their clinical skills.