The Utilization of Laparoscopic Ventral Hernia Repair (LVHR) in Incarcerated and Strangulated Cases: A National Trend in Outcomes

INTRODUCTION

Early after its adoption, minimally invasive surgery had limited usefulness in emergent cases. However, with improvements in equipment, techniques, and skills, laparoscopy in complex and emergency operations expanded substantially. This study aimed to examine the trend of laparoscopy in incarcerated or strangulated ventral hernia repair (VHR) over time.

METHODS

The American College of Surgeons National Surgical Quality Improvement Program (ACS-NSQIP) database was queried for laparoscopic repair of incarcerated and strangulated hernias (LIS-VHR) and compared over 2 time periods, 2014-2016 and 2017-2019.

RESULTS

The utilization of laparoscopy in all incarcerated or strangulated VHR increased over time (2014-2016: 39.9% (n = 14 075) vs 2017-2019: 46.3% (n = 18 369), P < .001). Though likely not clinically significant, demographics and comorbidities statistically differed between groups (female: 51.7% vs 50.0%, P = .003; age 54.5 ± 13.7 vs 55.4 ± 13.8 years, P < .001; BMI 34.9 ± 8.0 vs 34.6 ± 7.8 kg/m2, P < .001). Patients from 2017 to 2019 were less comorbid (18.9% vs 16.8% smokers, P < .001; 18.2% vs 17.3% diabetic, P = .036; 4.6% vs 4.1% COPD, P = .021) but had higher ASA classification (III: 43.3% vs 45.7%; IV: 2.5% vs 2.7%, P < .001). Hernia types (primary, incisional, recurrent) were similar in each group. Operative time (89.7 ± 59.3 vs 97.4 ± 63.4 min, P < .001) became longer but length-of-stay (1.4 ± 3.3 vs 1.1 ± 2.6 days, P < .001) decreased. There was no statistical difference in surgical complications, medical complications, reoperation, or readmission rates between periods.

CONCLUSION

Laparoscopic VHR has become a routine method for treating incarcerated and strangulated hernias, and its utilization continues to increase over time. Clinical outcomes have remained the same while hospital stays have decreased.

Disparate potential for readmission prevention exists among inpatient and outpatient procedures in a minimally invasive surgery practice

BACKGROUND

Administrators have focused on decreasing postoperative readmissions for cost reduction without fully understanding their preventability. This study describes the development and implementation of a surgeon-led readmission review process that assessed preventability.

METHODS

A gastrointestinal surgical group at a tertiary referral hospital developed and implemented a template to analyze inpatient and outpatient readmissions. Monthly stakeholder assessments reviewed and categorized readmissions as potentially preventable or not preventable. Continuous variables were examined by the Student's t test and reported as means and standard deviations. Categorical variables were examined by the Pearson χ2 statistic and Fisher's exact test.

RESULTS

There were 61 readmission events after 849 inpatient operations (7.2%) and 16 after 856 outpatient operations (1.9%), the latter of which were all classified as potentially preventable. Colorectal procedures represented 65.6% of readmissions despite being only 37.2% of all cases. The majority (67.2%) of readmission events were not preventable. Compared to the not-preventable group, the potentially preventable group experienced more dehydration (30.0% vs 9.8%, P = .045) and ileostomy creation (78.6% vs 33.3%, P = .017). The potential for outpatient management to prevent readmission was significantly higher in the potentially preventable group (40.0% vs 0.0%, P < .001), as was premature discharge prevention (35.0% vs 0.0%, P < .001).

CONCLUSION

The use of the standardized template developed for analyzing readmission events after inpatient and outpatient procedures identified a disparate potential for readmission prevention. This finding suggests that a singular focus on readmission reduction is misguided, with further work needed to evaluate and implement appropriate quality-based strategies.

Preservation of deep epigastric perforators during anterior component separation technique (ACST) results in equivalent wound complications compared to transversus abdominis release (TAR)

PURPOSE

The use of component separation results in myofascial release and increased rates of fascial closure in abdominal wall reconstruction(AWR). These complex dissections have been associated with increased rates of wound complications with anterior component separation having the greatest wound morbidity. The aim of this paper was to compare the wound complication rate between perforator sparing anterior component separation(PS-ACST) and transversus abdominus release(TAR).

METHODS

Patients were identified from a prospective, single institution hernia center database who underwent PS-ACST and TAR from 2015 to 2021. The primary outcome was wound complication rate. Standard statistical methods were used, univariate analysis and multivariable logistic regression were performed.

RESULTS

A total of 172 patients met criteria, 39 had PS-ACST and 133 had TAR performed. The PS-ACST and TAR groups were similar in terms of diabetes (15.4% vs 28.6%, p = 0.097), but the PS-ACST group had a greater percentage of smokers (46.2% vs 14.3%, p < 0.001). The PS-ACST group had a larger hernia defect size (375.2 ± 156.7 vs 234.4 ± 126.9cm2, p < 0.001) and more patients who underwent preoperative Botulinum toxin A (BTA) injections (43.6% vs 6.0%, p < 0.001). The overall wound complication rate was not significantly different (23.1% vs 36.1%, p = 0.129) nor was the mesh infection rate (0% vs 1.6%, p = 0.438). Using logistic regression, none of the factors that were significantly different in the univariate analysis were associated with wound complication rate (all p > 0.05).

CONCLUSION

PS-ACST and TAR are comparable in terms of wound complication rates. PS-ACST can be used for large hernia defects and promote fascial closure with low overall wound morbidity and perioperative complications.

Open preperitoneal ventral hernia repair: Prospective observational study of quality improvement outcomes over 18 years and 1,842 patients

BACKGROUND

This study aimed to describe progressive evidence-based changes in perioperative management of open preperitoneal ventral hernia repair and subsequent surgical outcomes and to analyze factors that affect recurrence and wound complications.

METHODS

Prospective, tertiary hernia center data (2004-2021) were examined for patients undergoing midline open preperitoneal ventral hernia repair with mesh. "Early" (2004-2012) and "Recent" (2013-2021) groups were based on surgery date.

RESULTS

Comparison of Early (n = 675) versus Recent (n = 1,167) groups showed that Recent patients were, on average, older (56.9 ± 12.6 vs 58.7 ± 12.1 years; P < .001) with a lower body mass index (33.5 ± 8.3 vs 32.0 ± 6.8 kg/m²; P = .003) and a higher number of comorbidities (3.6 ± 2.2 vs 5.2 ± 2.6; P < .001). Recent patients had higher proportions of prior failed ventral hernia repair (46.5% vs 60.8%; P < .001), larger hernia defects (199.7 ± 232.8 vs 214.4 ± 170.5 cm²; P < .001), more Center for Disease Control class 3 or 4 wounds (11.3% vs 18.6%; P < .001), and more component separations (22.5% vs 45.7%; P < .001). Hernia recurrence decreased over time (7.1% vs 2.4%; P < .001), as did wound complication rates (26.7% vs 13.2%; P < .001). Comparing respective multivariable analyses (Early versus Recent), wound complications were associated with panniculectomy (odds ratio [95% confidence interval]: 2.9 [1.9-4.5], P < .001 vs 2.1 [1.4-3.3], P < .01), contaminated wounds (2.1 [1.1-3.7], P = .02 vs 1.8 [1.1-3.1], P = .02), anterior component separation technique (1.8 [1.1-2.9], P = .02 vs 3.2[1.9-5.3], P < .01), and operative time (per minute: 1.01 [1.008-1.015], P < .01 vs 1.004 [1.001-1.007], P < .01). Diabetes (2.6 [1.7-4.0], P < .01) and tobacco (1.8 [1.1-2.9], P = .02) were only significant in the early group. In both groups, recurrence was associated with wound complication (8.9 [4.1-20.1], P < .01 vs 3.4 [1.3-8.2]. P < .01) and recurrent hernias (4.9 [2.3-11.5], P < .01 vs 2.1 [1.1-4.2], P = .036).

CONCLUSION

Despite significant increased patient complexity over time, detecting and implementing best practices as determined by recurring data analysis of a center's outcomes has significantly improved patient care results.

Outcomes of biologic versus synthetic mesh in CDC class 3 and 4 open abdominal wall reconstruction

INTRODUCTION

Abdominal wall reconstruction (AWR) in a contaminated field is associated with an increased risk of wound complications, infection, and reoperation. The best method of repair and mesh choice in these operations have generated marked controversy. Our aim was to compare outcomes of patients who underwent AWR with biologic versus synthetic mesh in CDC class 3 and 4 wounds.

METHODS

A prospective, single-institution database was queried for AWR using biologic or synthetic mesh in CDC Class 3 and 4 wounds. Hernia recurrence and complications were measured. Multivariable logistic regression was performed to identify factors predicting both.

RESULTS

In total, 386 patients with contaminated wounds underwent AWR, 335 with biologic and 51 with synthetic mesh. Groups were similar in age, sex, BMI, and rate of diabetes. Biologic mesh patients had larger hernia defects (298 ± 233cm² vs. 208 ± 155cm²; p = 0.004) and a higher rate of recurrent hernias (72.2% vs 47.1%; p < 0.001), comorbidities(5.8 ± 2.7 vs. 4.2 ± 2.4, p < 0.01), and a nearly fivefold increase in Class 4 wounds (47.8% vs. 9.8%, p < 0.001), while fascial closure trended to being less common (90.7% vs 96.1%; p = 0.078). Hernia recurrence was comparable between biologic and synthetic mesh (10.4% vs. 17.6%, p = 0.132). Wound complication rates were similar (36.1% vs. 33.3%, p = 0.699), but synthetic mesh had higher rates of mesh infection (1.2% vs 11.8%; p < 0.001) and infection-related resection (0% vs 7.8%, p < 0.001), with 66% of those synthetic mesh infections requiring excision. On logistic regression, wound complications (OR 5.96 [CI 1.60-22.17]; p = 0.008) and bridging mesh (OR 13.10 [CI 2.71-63.42];p = 0.030) predicted of hernia recurrence (p < 0.05), while synthetic mesh (OR 18.6 [CI 2.35-260.4] p = 0.012) and wound complications (OR 20.6 [CI 3.15-417.7] p = 0.008) predicted mesh infection.

CONCLUSIONS

Wound complications in AWR with CDC class 3 and 4 wounds significantly increased mesh infection and hernia recurrence; failure to achieve fascial closure also increased hernia recurrence. Use of synthetic versus biologic mesh increased the mesh infection rate by 18.6 times.

Closed-Incision Negative Pressure Therapy Decreases Wound Morbidity in Open Abdominal Wall Reconstruction With Concomitant Panniculectomy

INTRODUCTION

Patients undergoing abdominal wall reconstruction (AWR) with concomitant panniculectomy (CP) may be at higher risk for wound complications due to the need for large incisions and tissue undermining. The aim of this study was to evaluate whether the use of closed-incision negative pressure therapy (ciNPT) decreases wound complications in AWR patients undergoing CP.

METHODS

Beginning in February 2018, all patients at this institution who underwent AWR with CP received ciNPT. These patients were identified from a prospectively maintained institutional database. A standard dressing (non-NPT) group was then created in a 1:1 fashion by identifying patients who had AWR with CP immediately before the beginning of ciNPT use (2016-2018). A univariate comparison was made between the ciNPT and non-NPT groups. The primary outcome was wound complication rate; however, other perioperative outcomes, such as requirement for reoperation, were also tracked. Standard statistical methods and logistic regression were used.

RESULTS

In total, 134 patients met criteria, with 67 patients each in the ciNPT and non-NPT groups. When comparing patients in the ciNPT and non-NPT groups, they were demographically similar, including body mass index, smoking, and diabetes (P < 0.05). Hernias was large on average (289.5 ± 158.2 vs 315.3 ± 197.3 cm2, P = 0.92) and predominantly recurrent (58.5% vs 72.6%, P = 0.14). Wound complications were much lower in the ciNPT group (15.6% vs 35.5%, P = 0.01), which was mainly driven by a decrease in superficial wound breakdown (3.1% vs 19.7%, P < 0.01). Patients in the ciNPT group were less likely to require a return trip to the operating room for wound complications (0.0% vs 13.3%, P < 0.01). In logistic regression, the use of ciNPT continued to correlate with reduced wound complication rates (P = 0.02).

CONCLUSIONS

In AWR with CP, the use of ciNPT significantly decreased the risk of postoperative wound complications, particularly superficial wound breakdown, and lessened the need for wound-related reoperation.

Factors Predicting Increased Length of Stay in Abdominal Wall Reconstruction

BACKGROUND

Enhanced recovery after surgery (ERAS) programs have become increasingly popular in general surgery, yet no guidelines exist for an abdominal wall reconstruction (AWR)-specific program. We aimed to evaluate predictors of increased length of stay (LOS) in the AWR population to aid in creating an AWR-specific ERAS protocol.

METHODS

A prospective, single institution hernia center database was queried for all patients undergoing open AWR (1999-2019). Standard statistical methods and linear and logistic regression were used to evaluate for predictors of increased LOS. Groups were compared based on LOS below or above the median LOS of 6 days (IQR = 4-8).

RESULTS

Inclusion criteria were met by 2,505 patients. On average, the high LOS group was older, with higher rates of CAD, COPD, diabetes, obesity, and pre-operative narcotic use (all P < .05). Longer LOS patients had more complex hernias with larger defects, higher rates of mesh infection/fistula, and more often required a component separation (all P < .05). Multivariate analysis identified age (β0.04,SE0.02), BMI (β0.06,SE0.03), hernia defect size (β0.003,SE0.001), active mesh infection or mesh fistula (β1.8,SE0.72), operative time (β0.02,SE0.002), and ASA score >4 (β3.6,SE1.7) as independently associated factors for increased LOS (all P < .05). Logistic regression showed that an increased length of stay trended toward an increased risk of hernia recurrence (P = .06).

CONCLUSIONS

Multiple patient and hernia characteristics are shown to significantly affect LOS, which, in turn, increases the odds of AWR failure. Weight loss, peri-operative geriatric optimization, prehabilitation of comorbidities, and operating room efficiency can enhance recovery and shorten LOS following AWR.

Delayed primary closure (DPC) of the skin and subcutaneous tissues following complex, contaminated abdominal wall reconstruction (AWR): a propensity-matched study

BACKGROUND

Wound complications following abdominal wall reconstruction (AWR) in a contaminated setting are common and significantly increase the risk of hernia recurrence. The purpose of this study was to examine the effect of short-term negative pressure wound therapy (NPWT) followed by operative delayed primary closure (DPC) of the skin and subcutaneous tissue after AWR in a contaminated setting.

METHODS

A prospective institutional hernia database was queried for patients who underwent NPWT-assisted DPC after contaminated AWR between 2008 and 2020. Primary outcomes included wound complication rate and reopening of the incision. A non-DPC group was created using propensity-matching. Standard descriptive statistics were used, and a univariate analysis was performed between the DPC and non-DPC groups.

RESULTS

In total, 110 patients underwent DPC following AWR. The hernias were on average large (188 ± 133.6 cm²), often recurrent (81.5%), and 60.5% required a components separation. All patients had CDC Class 3 (14.5%) or 4 (85.5%) wounds and biologic mesh placed. Using CeDAR, the wound complication rate was estimated to be 66.3%. Postoperatively, 26.4% patients developed a wound complication, but only 5.5% patients required reopening of the wound. The rate of recurrence was 5.5% with mean follow-up of 22.6 ± 27.1 months. After propensity-matching, there were 73 patients each in the DPC and non-DPC groups. DPC patients had fewer overall wound complications (23.0% vs 43.9%, p = 0.02). While 4.1% of the DPC group required reopening of the incision, 20.5% of patients in the non-DPC required reopening of the incision (p = 0.005) with an average time to healing of 150 days. Hernia recurrence remained low overall (2.7% vs 5.4%, p = 0.17).

CONCLUSIONS

DPC can be performed with a high rate of success in complex, contaminated AWR patients by reducing the rate of wound complications and avoiding prolonged healing times. In patients undergoing AWR in a contaminated setting, a NPWT-assisted DPC should be considered.

Recurrent incisional hernia repairs at a tertiary hernia center: Are outcomes really inferior to initial repairs?

BACKGROUND

Recurrent ventral hernia repairs are reported to have higher recurrence and complication rates than initial ventral hernia repairs. This is the largest analysis of outcomes for initial versus recurrent open ventral hernia repairs reported in the literature.

METHODS

A prospective, institutional database at a tertiary hernia center was queried for patients undergoing open ventral hernia repairs with complete fascial closure and synthetic mesh placement.

RESULTS

A total of 1,694 open ventral hernia repairs patients were identified, including 896 (52.9%) initial ventral hernia repairs and 798 (47.1%)recurrent ventral hernia repairs. Recurrent ventral hernia repair patients were more complex: older (P = .003), higher body mass index (P < .001), higher American Society of Anesthesiologists class (P < .001), incidence of diabetics (P = .003), comorbidities (P < .001), and larger hernia defects (133.3 ± 171.9 vs 220.2 ± 210.0; P < .001). Recurrent ventral hernia repairs also had longer operative times (161.6 ± 82.4 vs 188.2 ± 68.9 minutes; P < .001), increased use of preoperative botulinum toxin A injection (4.3% vs 10.1%; P = .01), components separation (19.2% vs 39.5%; P < .001), and panniculectomy (20.3% vs 35.8%; P < .001). The overall hernia recurrence rate was 4.4% at a mean follow-up of 36.6 ± 45.5 months. Between the initial ventral hernia repairs and recurrent ventral hernia repairs, the hernia recurrence rates were equivalent (4.2% vs 4.7%, P = .63). Rates of wound infection, seromas, hematomas, mesh infections, and wound related reoperations (P > .05) were nonsignificant.

CONCLUSION

At a tertiary hernia center, despite higher-risk patients, larger hernia defects, and increased components separation in recurrent ventral hernia repairs, early recurrence rates, wound complications, and reoperations are similar to initial ventral hernia repairs.

Laparoscopic Ventral Hernia Repair in the Geriatric Population : An Assessment of Long-Term Outcomes and Quality of Life

OBJECTIVES

Laparoscopic ventral hernia repair (LVHR) has been shown to decrease wound complications and length of stay (LOS) but results in more postoperative discomfort. The benefits of LVHR for the growing geriatric population are unclear. The aim of our study is to evaluate long-term outcomes and quality of life (QOL) after LVHR in the geriatric population.

METHODS

A prospectively collected single-center database was queried for all patients who underwent LVHR (1999-2019). Age groups were defined as <40 (young), 40-64 (middle age), and ≥65 years (geriatric). QOL was assessed with the Carolinas Comfort Scale.

RESULTS

LVHR was performed in 1181 patients, of which 13.4% were young, 61.6% middle aged, and 25.0% geriatric. Hernia defect size (64.2 ± 94.4 vs 79.9 ± 102.4 vs 84.7 ± 110.0 cm²) and number of comorbidities (2.2 ± 2.1 vs 3.2 ± 2.2 vs 4.3 ± 2.2) increased with age (all P < .05). LOS increased with age (2.9 ± 2.5 vs 3.8 ± 2.9 vs 5.2 ± 5.3 days, P < .0001). Rates of postoperative cardiac events, pneumonia, respiratory failure, wound complication, reoperation, and death were similar (P > .05). Geriatric patients had increased rate of ileus and urinary retention (all P < .05). Overall recurrence rate was 5.7% with an average follow-up of 43.5 months, with no differences in recurrence between groups (P > .05). Geriatric patients had better overall QOL at 2 weeks (P = .0008) and similar QOL at 1, 6, and 12 months.

DISCUSSION

LVHR offers excellent results in the geriatric population. Despite having increased rates of comorbidities and larger hernia defects, which may relate to LOS, rates of complications and recurrence were similar compared with younger cohorts, with better short-term QOL.

Sarcopenia in Patients Undergoing Open Ventral Hernia Repair

Radiologic indicators of sarcopenia have been associated with adverse operative outcomes in some surgical populations. This study assesses the association of radiologic indicators of frailty with outcomes after open ventral hernia repair (OVHR). A prospective, institutional, herniaspecific database was queried for patients undergoing OVHR from 2007 to 2018 with preoperative CT. Psoas muscle cross-sectional area at L3 was measured and adjusted for height (skeletal muscle index (SMI)). L3 vertebral body density (L3 VBD) was measured. Demographics and outcomes were evaluated as related to SMI and L3 VBD. Of 1178 patients, 9.7 per cent of females and 15.8 per cent of males had sarcopenia and 11.6 per cent of females and 9.2 per cent of males had osteopenia. Neither sarcopenia nor osteopenia were associated with outcomes of wound infection, read-mission, reoperation, hernia recurrence, or major complications. When examined as continuous variables or by quartile, SMI and L3 VBD were not associated with adverse outcomes, including in subsets of male or female patients, the elderly, contaminated cases, and the obese. Radiologic markers of sarcopenia and osteopenia are not associated with adverse outcomes after OVHR. Further study should examine age or other potential predictors of outcomes in this patient population, such as independent status.

The use of component separation during abdominal wall reconstruction in contaminated fields: A case-control analysis

BACKGROUND

Component separation technique (CST) allows fascial medialization during abdominal wall reconstruction (AWR). Wound contamination increases the incidence of wound complications, which multiplies the incidence of repair failure. The aim of this study was to compare the impact of CST on AWR outcomes in contaminated fields in comparison to those operations without CST.

METHODS

A prospective, single institution hernia database was queried for patients undergoing AWR with CST and contamination. A case control cohort was identified using propensity score matching.

RESULTS

There were 286 CSTs performed in contaminated cases. After propensity score matching, 61 CSTs were compared to 61 No-CSTs. These groups were matched by defect area (CST:287.1 ± 150.4 vs No-CST:277.6 ± 218.4 cm², p = 0.156), BMI (32.0 ± 7.0 vs 32.2 ± 6.0 kg/m², p = 0.767), diabetes (26.2% vs 32.8%, p = 0.427), and panniculectomy (52.5% vs 36.1%, p = 0.068). Groups had similar rates of wound complications (42.6% vs 40.7%, p = 0.829) and recurrence (4.9% vs 13.1%, p = 0.114).

CONCLUSIONS

The use of CST in the face of contamination is not associated with an increase in wound complications, mesh complications, or recurrence.

Sarcopenia in Patients Undergoing Open Ventral Hernia Repair

Radiologic indicators of sarcopenia have been associated with adverse operative outcomes in some surgical populations. This study assesses the association of radiologic indicators of frailty with outcomes after open ventral hernia repair (OVHR). A prospective, institutional, hernia-specific database was queried for patients undergoing OVHR from 2007 to 2018 with preoperative CT. Psoas muscle cross-sectional area at L3 was measured and adjusted for height (skeletal muscle index (SMI)). L3 vertebral body density (L3 VBD) was measured. Demographics and outcomes were evaluated as related to SMI and L3 VBD. Of 1178 patients, 9.7 per cent of females and 15.8 per cent of males had sarcopenia and 11.6 per cent of females and 9.2 per cent of males had osteopenia. Neither sarcopenia nor osteopenia were associated with outcomes of wound infection, readmission, reoperation, hernia recurrence, or major complications. When examined as continuous variables or by quartile, SMI and L3 VBD were not associated with adverse outcomes, including in subsets of male or female patients, the elderly, contaminated cases, and the obese. Radiologic markers of sarcopenia and osteopenia are not associated with adverse outcomes after OVHR. Further study should examine age or other potential predictors of outcomes in this patient population, such as independent status.

Long-term assessment of surgical and quality-of-life outcomes between lightweight and standard (heavyweight) three-dimensional contoured mesh in laparoscopic inguinal hernia repair

BACKGROUND

Mesh weight is a possible contributor to quality-of-life outcomes after inguinal hernia repair. This study compares lightweight mesh versus heavyweight mesh in laparoscopic inguinal hernia repair.

METHODS

A prospective, single-center, hernia-specific database was queried for all adult laparoscopic inguinal hernia repair with three-dimensional contoured mesh (3-D Max, Bard, Inc, New Providence, NJ) from 1999 to June 2016. Demographics and outcomes were analyzed. Quality of life was evaluated preoperatively and after 2 weeks, 4 weeks, 6 months, 12 months, and 24 months, using the Carolinas Comfort Scale. Univariate analysis and multivariate logistic regression were performed.

RESULTS

A total of 1,424 laparoscopic inguinal hernia repair were performed with three-dimensional contoured mesh, with 804 patients receiving lightweight mesh and 620 receiving heavyweight mesh. Patients receiving lightweight mesh were somewhat younger (52.6 ± 14.8 years vs 56.3 ± 13.7 years, P < .0001), with slightly lower body mass indices (26.4 ± 9.9 vs 27.1 ± 4.3, P < .0001). Lightweight mesh was used less often in incarcerated hernias (12.5% vs 16.8%, P = .02). There were a total of 3 surgical site infections. There were no differences in complications between groups except for seroma. Although on univariate analysis, seromas appeared to occur more frequently with heavyweight mesh (21.5% vs 7.9%). On multivariate analysis, heavyweight mesh was not independently associated with seroma formation. Average follow-up was 20 months. Recurrence rates were similar between lightweight mesh and heavyweight mesh (0.7 vs 0.6% P > .05). At all points of follow-up (4 week to 3 years), quality-of-life outcomes of discomfort, mesh sensation, and movement limitation scores were similar between lightweight mesh and heavyweight mesh.

CONCLUSION

Contoured lightweight mesh and heavyweight mesh in laparoscopic inguinal hernia repair yield excellent recurrence rates and no difference in postoperative complications or quality of life. Considering the lack of outcome difference with long-term follow-up, heavyweight mesh may be considered for use in laparoscopic inguinal hernia repair patients.

Deciding on Optimal Approach for Ventral Hernia Repair: Laparoscopic or Open

BACKGROUND

The decision to perform laparoscopic or open ventral hernia repair (VHR) is multifactorial. This study evaluates the impact of operative approach, BMI, and hernia size on outcomes after VHR.

STUDY DESIGN

The International Hernia Mesh Registry was queried for VHR (2007-2017). A predictive algorithm was constructed, factoring the impact of BMI, hernia size, age, sex, diabetes, and operative approach on outcomes.

RESULTS

Of the 1,906 VHRs, 58.8% were performed open, patient mean age was 54.9 ± 13.5 years, BMI was 31.2 ± 6.8 kg/m², and defect area was 44.8 ± 88.1 cm². Patients undergoing open VHRs were more likely to have an infection develop (3.1% vs 0.3%; p < 0.0001), but less likely to have a seroma develop (6.8% vs 15.3%; p < 0.0001) at mean follow-up 23.2 ± 12.0 months. With multivariate regression controlling for confounding variables, patients undergoing laparoscopic VHR had increased risk of seroma (odds ratio [OR] 1.78; 95% CI 1.05 to 3.03), a decreased risk of infection (OR 0.05; 95% CI 0.01 to 0.42), and had worse quality of life at 1, 6, 12, and 24 months postoperatively compared with patients undergoing open repair. Recurrent hernias were associated with subsequent recurrence (OR 2.69; 95% CI 1.24 to 5.81) and need for reoperation (OR 4.93; 95% CI 2.24 to 10.87). Multivariate predictive models demonstrated independent predictors of infection, including open approach, recurrent hernias, and low ratio of BMI to defect size.

CONCLUSIONS

Ideal outcomes are dependent on both patient and operative factors. Open repair in thin patients with large defects should be considered due to reduced complications and improved quality of life. Laparoscopic repair in obese patients and recurrent hernias can decrease the associated risk of infection.

Laparoscopic Expertise Increases Hospital Volume of Adrenal Surgery

The laparoscopic approach is preferred for most adrenal tumors but technical challenges limit its use. We evaluated the effects of the availability of laparoscopic expertise on the volume of the adrenal surgery at a tertiary care hospital. Patients undergoing adrenalectomy 5 years before and 5 years after an advanced laparoscopic program was established were retrospectively reviewed. The average annual volume increased from 2 cases during the first period to 15 cases during the 5 years (1999-2003) after laparoscopic expertise became available. The average distance of travel to the hospital was significantly greater for the latter patients and significantly more patients were referred from outside of a 30-mile radius. Although the average statewide annual number of adrenalectomies has not significantly changed, the proportion of adrenalectomies performed at our institution rose. Offering a laparoscopic approach has altered physicians’ referral patterns and has significantly increased the volume of adrenal surgery at the institution.

Evaluation of the Efficacy of the Electrosurgical Bipolar Vessel Sealer (LigaSure) Devices in Sealing Lymphatic Vessels

Various sources of ultrasonic and thermal energy have been developed to facilitate blood vessel ligation. However, their efficacy in sealing lymphatics has not been clearly established to date. We hypothesized that the electrosurgical bipolar vessel sealer (EBVS) produces reliable and durable sealing of large lymphatic vessels in a porcine model. Thoracic ducts from 4 adult pigs were explanted and sealed at multiple levels by using 3 different EBVS devices: LigaSure Atlas, XTD, and V. Fifteen seals (5 per group) were analyzed for sealing time and visual quality. Seal burst strength was measured by using a graduated pressure saline injection system. Twelve intact seals also underwent a histologic analysis. The mean overall burst strength of the seals was 271 78 mm Hg (127 to 360 mm Hg). The burst pressures in the 3 groups were not statistically different. The overall mean time to achieve a seal was 5.12.2 seconds (3 to 10 seconds). Seals were achieved significantly faster in the V group (4.10.6 seconds) compared with the Atlas (6.32.3 seconds) and XTD (6.4 2.6 seconds) groups. Qualitative seal assessment revealed minimal sticking and charring, a favorable degree of seal tissue clarity, and desiccation in the 3 groups. Histologic analysis demonstrated a fusion of lymphovascular channels with a complete obliteration of the lumens. We demonstrated that the use of EBVS results in a fast and effective sealing of large porcine lymphatic vessels. The seals created by all 3 devices burst at markedly supraphysiologic intraluminal pressures. Ongoing randomized human trials may prove the clinical benefits of the routine use of EBVS devices for various tissue dissections.

National Outcomes for Open Ventral Hernia Repair Techniques in Complex Abdominal Wall Reconstruction

Modern adjuncts to complex, open ventral hernia repair often include component separation (CS) and/or panniculectomy (PAN). This study examines nationwide data to determine how these techniques impact postoperative complications. The National Surgical Quality Improvement Program database was queried from 2005 to 2013 for inpatient, elective open ventral hernia repairs (OVHR). Cases were grouped by the need for and type of concomitant advancement flaps: OVHR alone (OVHRA), OVHR with CS, OVHR with panniculectomy (PAN), or both CS and PAN (BOTH). Multivariate regression to control for confounding factors was conducted. There were 58,845 OVHR: 51,494 OVHRA, 5,357 CS, 1,617 PAN, and 377 BOTH. Wound complications (OVHRA 8.2%, CS 12.8%, PAN 14.4%, BOTH 17.5%), general complications (15.2%, 24.9%, 25.2%, 31.6%), and major complications (6.9%, 11.4%, 7.2%, 13.5%) were different between groups ( P < 0.0001). There was no difference in mortality. Multivariate regression showed CS had higher odds of wound [odds ratio (OR) 1.7, 95% confidence interval (CI) 1.5–2.0], general (OR 1.5, 95% CI: 1.3–1.8), and major complications (OR 2.1, 95%, CI: 1.8–2.4), and longer length of stay by 2.3 days. PAN had higher odds of wound (OR 1.5, 95%, CI: 1.3–1.8) and general complications (OR 1.7, 95% CI: 1.5–2.0). Both CS and PAN had higher odds of wound (OR 2.2,95%, CI: 1.5–3.2), general (OR 2.5, 95%, CI: 1.8–3.4), and major complications (OR 2.2, 95%CI: 1.4–3.4), and two days longer length of stay. In conclusion, patients undergoing OVHR that require CS or PAN have a higher independent risk of complications, which increases when the procedures are combined.

Impact of the Establishment of a Specialty Hernia Referral Center

Background. Creating a surgical specialty referral center requires a strong interest, expertise, and a market demand in that particular field, as well as some form of promotion. In 2004, we established a tertiary hernia referral center. Our goal in this study was to examine its impact on institutional volume and economics. Materials and methods. The database of all hernia repairs (2004-2011) was reviewed comparing hernia repair type and volume and center financial performance. The ventral hernia repair (VHR) patient subset was further analyzed with particular attention paid to previous repairs, comorbidities, referral patterns, and the concomitant involvement of plastic surgery. Results. From 2004 to 2011, 4927 hernia repairs were performed: 39.3% inguinal, 35.5% ventral or incisional, 16.2% umbilical, 5.8% diaphragmatic, 1.6% femoral, and 1.5% other. Annual billing increased yearly from 7% to 85% and averaged 37% per year. Comparing 2004 with 2011, procedural volume increased 234%, and billing increased 713%. During that period, there was a 2.5-fold increase in open VHRs, and plastic surgeon involvement increased almost 8-fold, ( P = .004). In 2005, 51 VHR patients had a previous repair, 27.0% with mesh, versus 114 previous VHR in 2011, 58.3% with mesh ( P < .0001). For VHR, in-state referrals from 2004 to 2011 increased 340% while out-of-state referrals jumped 580%. In 2011, 21% of all patients had more than 4 comorbidities, significantly increased from 2004 ( P = .02). Conclusion. The establishment of a tertiary, regional referral center for hernia repair has led to a substantial increase in surgical volume, complexity, referral geography, and financial benefit to the institution.

Criteria for definition of a complex abdominal wall hernia

PURPOSE

A clear definition of "complex (abdominal wall) hernia" is missing, though the term is often used. Practically all "complex hernia" literature is retrospective and lacks proper description of the population. There is need for clarification and classification to improve patient care and allow comparison of different surgical approaches. The aim of this study was to reach consensus on criteria used to define a patient with "complex" hernia.

METHODS

Three consensus meetings were convened by surgeons with expertise in complex abdominal wall hernias, aimed at laying down criteria that can be used to define "complex hernia" patients, and to divide patients in severity classes. To aid discussion, literature review was performed to identify hernia classification systems, and to find evidence for patient and hernia variables that influence treatment and/or prognosis.

RESULTS

Consensus was reached on 22 patient and hernia variables for "complex" hernia criteria inclusion which were grouped under four categories: "Size and location", "Contamination/soft tissue condition", "Patient history/risk factors", and "Clinical scenario". These variables were further divided in three patient severity classes ('Minor', 'Moderate', and 'Major') to provide guidance for peri-operative planning and measures, the risk of a complicated post-operative course, and the extent of financial costs associated with treatment of these hernia patients.

CONCLUSION

Common criteria that can be used in defining and describing "complex" (abdominal wall) hernia patients have been identified and divided under four categories and three severity classes. Next step would be to create and validate treatment algorithms to guide the choice of surgical technique including mesh type for the various complex hernias.

Quality of Life Following Component Separation Versus Standard Open Ventral Hernia Repair for Large Hernias

Introduction. Component separation (CS) has become a viable alternative to repair large ventral defects when the fascia cannot be reapproximated. However, the impact of transecting the external oblique to facilitate closure of the abdomen on quality of life (QOL) has yet to be investigated. The study goal was to investigate QOL and outcomes after standard open ventral hernia repair (OVHR) versus CS for large ventral hernias. Study design. Prospective data for all CSs were reviewed and compared with matched OVHR controls. All defects were 100 to 1000 cm2 in size and repaired with mesh. Comorbidities, complications, outcomes, and Carolinas Comfort Scale (CCS) scores, were reviewed. Results. Seventy-four CS patients were compared with 154 patients undergoing standard OVHR with similar defect sizes. Age (56.7±13.0 vs 54.7 ± 12.3 years, P = .26), defect sizes (299 ± 160 vs 304 ± 210cm2, P = .87), and BMI (32.7 ± 6.9 vs 34.2 ± 9.0 kg/m2, P = .26) were similar in both groups, respectively. There were no differences in major postoperative complications (P = .22), mesh infections (P = 1.00), wound infections (P = .07), or hernia recurrence (P = .09), but wound breakdown increased after CS (10% vs 1%, P < .001) as did seroma interventions (15% vs 4%, P = .005). Postoperative CCS scores were similar at 1 month (P = .82) and 1 year (P = .14). Conclusions. In the first comparative study of its kind, it is found that patient undergoing CS with mesh reinforcement had equal short- and long-term QOL outcomes compared with similar patients who underwent standard OVHR. Whereas wound breakdown and seroma formation are higher, the overall complication, mesh infection, and recurrence rates are similar.

The Regionalization of Ventral Hernia Repair: Occurrence and Outcomes over a Decade

Ventral hernia repairs (VHRs) have always been considered standard general surgery cases. Recently, there has been a call for “Centers of Excellence.” We sought to investigate outcomes and trends between high- and low-volume centers. The Nationwide Inpatient Sample (NIS) data were analyzed from 1998–1999 (T1) and 2008–2009 (T2) for all VHRs. Hospitals were stratified into high-, medium-, and low-volume centers (HVC/MVC/LVC). Demographics, comorbidities, and outcomes were compared. Surgical cases totaled 22,771 in T1 and 37,044 in T2. In T1, 34.3 per cent were performed in HVC versus 64.2 per cent in T2 ( P < 0.0001). LVC cases decreased between eras: 32.6 versus 16.1 per cent ( P < 0.0001). Comorbidities and emergent admissions increased with time ( P < 0.0001). Mortality was similar in both eras and between volume centers. Length of stay was less in LVC in T2 only (4.2 vs 4.8 days, P < 0.0001). Total charges were higher in HVCs in both eras ( P < 0.0001). These remained significant in T2 in multivariate regression (MVR). Hospital volume was not associated with most complications or death in either era with MVR. Charlson comorbidity score, age, and emergent admission were predictors of complications and death. Regionalization has occurred for VHRs. However, most complication and mortality rates are unrelated to volume and are linked to comorbidities, age, and emergencies.

The regionalization of ventral hernia repair: occurrence and outcomes over a decade

Ventral hernia repairs (VHRs) have always been considered standard general surgery cases. Recently, there has been a call for "Centers of Excellence." We sought to investigate outcomes and trends between high- and low-volume centers. The Nationwide Inpatient Sample (NIS) data were analyzed from 1998-1999 (T1) and 2008-2009 (T2) for all VHRs. Hospitals were stratified into high-, medium-, and low-volume centers (HVC/MVC/LVC). Demographics, comorbidities, and outcomes were compared. Surgical cases totaled 22,771 in T1 and 37,044 in T2. In T1, 34.3 per cent were performed in HVC versus 64.2 per cent in T2 (P < 0.0001). LVC cases decreased between eras: 32.6 versus 16.1 per cent (P < 0.0001). Comorbidities and emergent admissions increased with time (P < 0.0001). Mortality was similar in both eras and between volume centers. Length of stay was less in LVC in T2 only (4.2 vs 4.8 days, P < 0.0001). Total charges were higher in HVCs in both eras (P < 0.0001). These remained significant in T2 in multivariate regression (MVR). Hospital volume was not associated with most complications or death in either era with MVR. Charlson comorbidity score, age, and emergent admission were predictors of complications and death. Regionalization has occurred for VHRs. However, most complication and mortality rates are unrelated to volume and are linked to comorbidities, age, and emergencies.

Evaluation of Soft Tissue Attachments to a Novel Intra-abdominal Prosthetic in a Rabbit Model

Background. Laparoscopic ventral hernia repair requires placement of an intraperitoneal prosthetic. Composite mesh types have been developed to address the shortcomings of standard meshes. The authors evaluated the host reaction to intraperitoneal placement of a novel composite material. Materials and Methods. A comparison of an innovative polypropylene/polylactide composite mesh was made to Parietex Composite (PCO), Proceed, and DualMesh. Eighteen meshes per group were implanted on intact peritoneum in New Zealand White rabbits. The main outcome measures included the formation of visceral adhesions, adhesion tenacity, tensiometric measurements, and histological analysis. Evaluations of adhesions were made at 1, 4, and 16 weeks using a 2-mm minilaparoscopy. Results. There were no significant differences in the mean adhesion scores between the composite mesh types at week 1 ( P = .15) and week 16 ( P = .06). At 4 weeks, PCO had significantly fewer adhesions when compared with the other 3 mesh types ( P = .02). Adhesion tenacity was also equivalent within the group at 16 weeks ( P = .06). Tensiometry and histological analysis revealed no statistically significant differences between the mesh types. Conclusions. Four different composite mesh types had equivalent intra-abdominal soft tissue attachments in a rabbit model after a 16-week implantation period. PCO demonstrated the lowest mean adhesion score of each mesh type. Each mesh exhibited equivalent stiffness and energy to failure after explantation. The 4 composite mesh types demonstrated the successful formation of a neoperitoneum and comparable host biocompatibility as evidenced by similar degrees of inflammation.

Laparoscopic approach to adrenalectomy: review of perioperative outcomes in a single center

Laparoscopic expertise increases the volume of adrenalectomies at referral centers. We report our 10-year experience with laparoscopic adrenalectomy. All laparoscopic adrenalectomies at a single institution were prospectively recorded in a surgical outcomes database. Patient demographics, operative/perioperative outcomes, and adrenal pathology were reviewed retrospectively. From March 1999 through July 2009, 154 laparoscopic adrenalectomies were performed in 150 patients. Average patient age was 49.9 years (range 15-82); mean body mass index was 31.1 kg/m(2) (range 17-56). Pathologic diagnoses included hyperaldosteronism (n = 69), nonfunctional adenoma (n = 28), pheochromocytoma (n = 23), hypercortisolism (n = 14), malignancy (primary n = 3, metastasis n = 9), and cyst (n = 4). Seventy-three per cent (n = 110) occurred on the left, 23 per cent (n = 35) on the right, 2.6 per cent (n = 4) bilateral, and 0.6 per cent (n = 1) as extra-adrenal. The average tumor measured 3.6 cm (range 0.4-12). The average operative time was 156 minutes (range 62-409), the mean estimated blood loss was 60 mL (range 10-400), and mean American Society of Anesthesiologists score was 2.6 (range 1-4). Three operations (0.2%) were converted to open. Three patients (0.2%) experienced perioperative complications (respiratory failure, urinary tract infection, line sepsis, and readmission within 30 days). The average length of stay was 3.4 days (range 1-44) and mean follow-up was 96.9 days (5-2567). No wound-related complications or deaths occurred. Pathologic diagnosis was not associated with a particular side or development of a complication (P > 0.5). Patients with pheochromocytomas had the longest operative times, highest estimated blood loss, and highest American Society of Anesthesiologists scores (218.2 minutes, 128 mL, 3.0; P < 0.004). Laparoscopic adrenalectomy is safe and effective. Removal of pheochromocytomas is more challenging and may be more appropriate for referral to a specialized center for optimal outcomes.

Laparoscopic Approach to Adrenalectomy: Review of Perioperative Outcomes in a Single Center

Laparoscopic expertise increases the volume of adrenalectomies at referral centers. We report our 10-year experience with laparoscopic adrenalectomy. All laparoscopic adrenalectomies at a single institution were prospectively recorded in a surgical outcomes database. Patient demographics, operative/perioperative outcomes, and adrenal pathology were reviewed retrospectively. From March 1999 through July 2009, 154 laparoscopic adrenalectomies were performed in 150 patients. Average patient age was 49.9 years (range 15-82); mean body mass index was 31.1 kg/m2 (range 17-56). Pathologic diagnoses included hyperaldosteronism (n = 69), nonfunctional adenoma (n = 28), pheochromocytoma (n = 23), hypercortisolism (n = 14), malignancy (primary n = 3, metastasis n = 9), and cyst (n = 4). Seventy-three per cent (n = 110) occurred on the left, 23 per cent (n = 35) on the right, 2.6 per cent (n = 4) bilateral, and 0.6 per cent (n = 1) as extra-adrenal. The average tumor measured 3.6 cm (range 0.4-12). The average operative time was 156 minutes (range 62-409), the mean estimated blood loss was 60 mL (range 10–100), and mean American Society of Anesthesiologists score was 2.6 (range 1-4). Three operations (0.2%) were converted to open. Three patients (0.2%) experienced perioperative complications (respiratory failure, urinary tract infection, line sepsis, and readmission within 30 days). The average length of stay was 3.4 days (range 1–14) and mean follow-up was 96.9 days (5-2567). No wound-related complications or deaths occurred. Pathologic diagnosis was not associated with a particular side or development of a complication ( P > 0.5). Patients with pheochromocytomas had the longest operative times, highest estimated blood loss, and highest American Society of Anesthesiologists scores (218.2 minutes, 128 mL, 3.0; P < 0.004). Laparoscopic adrenalectomy is safe and effective. Removal of pheochromocytomas is more challenging and may be more appropriate for referral to a specialized center for optimal outcomes.

Maximizing the donor pool: use of right kidneys and kidneys with multiple arteries for live donor transplantation

BACKGROUND

Studies have shown donor and recipient outcomes to be equivalent for laparoscopic donor nephrectomy (LDN) and open donor nephrectomy. In the past, LDN has been avoided in the procurement of the right kidney or organs with multiple arteries. This study compares procurement of right and left kidneys as well as procurement of single- and multiple artery organs.

METHODS

A review of all LDNs at a single institution between August 2000 and December 2007 was performed. The data included estimated blood loss (EBL), need for transfusion, operative time, warm ischemia time, length of hospital stay (LOS), and delayed graft function. Arterial supply was assessed using renal arteriogram or computed tomographic (CT) angiography. Outcomes for multiple versus single artery and left versus right LDN were compared. Student's t-test and chi-square test were used for statistical comparison.

RESULTS

A total of 230 LDNs were performed. Multiple arteries were present in 37 donors. The right kidney was procured from 36 donors. No significant difference in EBL, transfusions, operative time, or LOS was noted between multiple and single or right and left LDNs. Warm ischemia time was significantly longer for multiple arteries (mean, 83 s) than for single arteries (mean, 63 s; p = 0.007), and for right kidneys (mean, 86 s) than for left kidneys (mean, 62 s; p = 0.001). No significant difference in delayed graft function was seen in the comparison of multiple (21.6%) and single (11.4%) artery organs (p = 0.11) or of right (13.9%) and left (12.9%) kidneys (p = 0.79).

CONCLUSIONS

The presence of multiple arteries or the need to procure the right kidney does not affect the operative outcome of laparoscopic donor nephrectomy. Warm ischemia time may be greater for these groups, but this does not result in delayed allograft function. The laparoscopic approach should be the standard of care even when expansion of the donor pool includes organs with multiple arteries and procurement of the right kidney.

Short-Term Outcomes after Unilateral versus Complete Thyroidectomy for Malignancy: A National Perspective

The extent of thyroidectomy for well-differentiated thyroid cancer (WDTC) remains controversial. We compared outcomes of patients undergoing unilateral thyroid lobectomy (UTL) versus complete thyroidectomy (CT) to determine the best operative management of WDTC. We compared outcomes of patients who underwent UTL or CT for malignancy using the 1999 to 2003 editions of the National Inpatient Sample database. A total of 13,854 patients underwent UTL (n = 4,238) and CT (n = 9,616). The CT group was more likely to have complications than the UTL group (15% vs 6%, P < 0.0001). Mean total charges were higher in the CT group ($11,432) versus the UTL group ($9,739), as was LOS (2 days versus 1 day); P < 0.0001. Complete thyroidectomy is associated with increased morbidity, total charges, and length of stay. The higher risk of short-term complications should be considered when considering performing a complete thyroidectomy for WDTC.

Short-term outcomes after unilateral versus complete thyroidectomy for malignancy: a national perspective

The extent of thyroidectomy for well-differentiated thyroid cancer (WDTC) remains controversial. We compared outcomes of patients undergoing unilateral thyroid lobectomy (UTL) versus complete thyroidectomy (CT) to determine the best operative management of WDTC. We compared outcomes of patients who underwent UTL or CT for malignancy using the 1999 to 2003 editions of the National Inpatient Sample database. A total of 13,854 patients underwent UTL (n = 4,238) and CT (n = 9,616). The CT group was more likely to have complications than the UTL group (15% vs 6%, P < 0.0001). Mean total charges were higher in the CT group ($11,432) versus the UTL group ($9,739), as was LOS (2 days versus 1 day); P < 0.0001. Complete thyroidectomy is associated with increased morbidity, total charges, and length of stay. The higher risk of short-term complications should be considered when considering performing a complete thyroidectomy for WDTC.

Comparing quality-of-life outcomes in symptomatic patients undergoing laparoscopic or open ventral hernia repair

BACKGROUND

The aim of this study was to compare quality-of-life outcomes in patients with symptomatic hernias who were undergoing laparoscopic and open repairs.

MATERIALS AND METHODS

Clinical data for patients undergoing ventral hernia repair were reviewed with quality-of-life surveys administered before and at least 6 months following surgery.

RESULTS

The study included 56 symptomatic patients. Forty-one patients (73%) underwent laparoscopic repair, and 15 patients (27%) underwent open repair. There was no difference in preoperative quality-of-life scores on the SF-36 Health Survey between patients having laparoscopic or open repairs. Postoperative quality-of-life scores on the SF-36 survey were significantly improved in the laparoscopic group, compared with the open group, in general health (46% vs. 37%; P=0.0217), vitality (53% vs. 45%; P=0.0491), role-emotional (45% vs. 35%; P=0.0480), and mental health (49% vs. 39%; P=0.0381). Postoperative quality-of-life scores on the Carolinas Comfort Scale (CCS) were significantly improved in the laparoscopic group, compared with the open group, in bending over (3.15 vs. 5.87, P=0.0158), sitting up (2.51 vs. 5.13; P=0.0211), activities of daily living (2.48 vs. 5.75; P=0.0139), coughing or deep breathing (2.95 vs. 5.75; P=0.0314), walking (2.36 vs. 4.62; P=0.0427), exercising (3.19 vs. 6.14; P=0.0222), and total comfort scale (17.62 vs. 40.23; P=0.0084).

CONCLUSIONS

Laparoscopic ventral hernia repair provides improved quality-of-life, compared with open repair, 6 months postoperatively. Nearly all physical variables measured by the CCS were significantly better when ventral hernias were repaired laparoscopically.

Treatment of appendiceal adenocarcinoma in the United States: penetration and outcomes of current guidelines

Current treatment guidelines for appendiceal adenocarcinoma specify that right hemicolectomy should be performed. This study evaluates appendiceal cancer outcomes in the United States and treatment guideline compliance. Data for patients diagnosed with appendiceal adenocarcinoma in the Surveillance, Epidemiology, and End Results database (1988 to 2003) were analyzed. The 2511 patients with appendiceal adenocarcinoma had an average age of 59.3 years, average tumor size of 4.05 cm, and 5-year survival rate of 57 per cent. The 5-year survival rate by stage was statistically different (P < 0.001): Stage 0, 95.7 per cent; Stage I, 88 per cent; Stage II, 75.2 per cent; Stage III, 37.1 per cent; and Stage IV, 25.6 per cent. Appendectomy was performed in 33.4 per cent, which does not follow the current guidelines. In this group, 5-year survival was significantly less for patients with Stage III and IV disease (48% vs. 38.2%, P = 0.03; 46% vs. 26.4%, P = 0.04, respectively). Patients with Stage I and II disease had similar 5-year survival for appendectomy and colectomy (90.2% vs. 90.1%, P = 0.7; 78.3% vs. 76%, P = 0.6, respectively). One-third of patients with adenocarcinoma did not undergo current surgical guideline therapy. However, it appears hemicolectomy only improved survival for patients with later-stage disease. The current data raise the question of whether Stage I and II appendiceal cancer can be adequately treated with simple appendectomy.

Treatment of Appendiceal Adenocarcinoma in the United States: Penetration and Outcomes of Current Guidelines

Current treatment guidelines for appendiceal adenocarcinoma specify that right hemicolectomy should be performed. This study evaluates appendiceal cancer outcomes in the United States and treatment guideline compliance. Data for patients diagnosed with appendiceal adenocarcinoma in the Surveillance, Epidemiology, and End Results database (1988 to 2003) were analyzed. The 2511 patients with appendiceal adenocarcinoma had an average age of 59.3 years, average tumor size of 4.05 cm, and 5-year survival rate of 57 per cent. The 5-year survival rate by stage was statistically different (P < 0.001): Stage 0, 95.7 per cent; Stage I, 88 per cent; Stage II, 75.2 per cent; Stage III, 37.1 per cent; and Stage IV, 25.6 per cent. Appendectomy was performed in 33.4 per cent, which does not follow the current guidelines. In this group, 5-year survival was significantly less for patients with Stage III and IV disease (48% vs 38.2%, P = 0.03; 46% vs 26.4%, P = 0.04, respectively). Patients with Stage I and II disease had similar 5-year survival for appendectomy and colectomy (90.2% vs 90.1%, P = 0.7; 78.3% vs 76%, P = 0.6, respectively). One-third of patients with adenocarcinoma did not undergo current surgical guideline therapy. However, it appears hemicolectomy only improved survival for patients with later-stage disease. The current data raise the question of whether Stage I and II appendiceal cancer can be adequately treated with simple appendectomy.

Hand-assisted laparoscopic partial nephrectomy after 60 cases: comparison with open partial nephrectomy

BACKGROUND

Partial nephrectomy is the surgical standard of care for favorably located, small renal tumors. As the incidence of renal cell carcinoma (RCC) and detection of small kidney masses have increased over the past 20 years, minimally invasive management of these lesions has become more common. We report our single-institution experience with hand-assisted laparoscopic partial nephrectomy (HALPN) compared with open partial nephrectomy (OPN).

METHODS

Relevant outcome and demographic information was collected prospectively for HALPNs (N = 60) and retrospectively for OPNs (N = 40). A p-value of < 0.05 denotes statistical significance.

RESULTS

Average tumor size (2.6 cm HALPN versus 2.6 cm OPN, p = 0.97) was similar. Mean operative times were shorter for HALPN compared with OPN (161 versus 191 min, p = 0.027). HALPN was also associated with less blood loss (mean 120 cc versus 353 cc, p = 0.0003). Warm ischemia time was shorter for HALPN (mean 27.0 min versus 33.0 min, p = 0.035), as was hospital stay (mean 4.9 days versus 6.9 days, p = 0.007). Although four HALPN renal tumors required intraoperative margin re-excision (based on immediate gross evaluation by a pathologist), the final positive margin rate was 0%. A 5% final positive margin rate was observed in the OPN group. There were two conversions from HALPN to HAL radical nephrectomy and no conversions to an open technique. The HALPN minor complication rate was 18.3% versus 32.5% for OPN (p = 0.10). Complications included delayed bleeding (1, 2.5% OPN), urine leak (2, 5% OPN; 2, 3.3% HALPN), hypoxia, and nausea or fever lasting >3 days. Tumor pathology was as follows: 80.7% and 80% RCC, 12.3% and 8% oncocytoma, and 7% and 12% angiomyolipoma, for HALPN and OPN, respectively in each case.

CONCLUSIONS

HALPN is associated with diminished blood loss, operating time, warm ischemia time, positive margin rates, and length of stay compared with OPN. In our institution, HALPN is the standard approach for patients with small, surgically accessible renal tumors.

Combined Open and Laparoscopic Approach to Chronic Pain after Inguinal Hernia Repair

Chronic groin pain is the most frequent long-term complication after inguinal hernia repair affecting up to 34 per cent of patients. Traditional surgical management includes groin exploration, mesh removal, and neurectomy. We evaluate outcomes of a combined laparoscopic and open approach to chronic pain after inguinal herniorrhaphy. All patients undergoing surgical exploration for chronic pain after inguinal herniorrhaphy were analyzed. In most, the operation consisted of mesh removal (open or laparoscopic), neurectomy, and placement of mesh in the opposite location of the first mesh (laparoscopic if the first was open and vice-versa). Main outcome measures included pain status, numbness, and hernia recurrence. Twenty-one patients (16 male and 5 female) with a mean age of 41 years (22–51 years) underwent surgical treatment for unilateral (n = 18) or bilateral (n = 3) groin pain. Percutaneous nerve block was unsuccessful in all patients. Four had previous surgery for pain. There were no complications. With a minimum of 6 weeks follow-up, 20 of 21 patients reported significant improvement or resolution of symptoms. A combined laparoscopic and open approach for postherniorrhaphy groin pain results in excellent patient satisfaction with minimal morbidity. It may be the preferred technique for the definitive management of chronic neuralgia after hernia repair.

Combined open and laparoscopic approach to chronic pain after inguinal hernia repair

Chronic groin pain is the most frequent long-term complication after inguinal hernia repair affecting up to 34 per cent of patients. Traditional surgical management includes groin exploration, mesh removal, and neurectomy. We evaluate outcomes of a combined laparoscopic and open approach to chronic pain after inguinal herniorrhaphy. All patients undergoing surgical exploration for chronic pain after inguinal herniorrhaphy were analyzed. In most, the operation consisted of mesh removal (open or laparoscopic), neurectomy, and placement of mesh in the opposite location of the first mesh (laparoscopic if the first was open and vice-versa). Main outcome measures included pain status, numbness, and hernia recurrence. Twenty-one patients (16 male and 5 female) with a mean age of 41 years (22-51 years) underwent surgical treatment for unilateral (n = 18) or bilateral (n = 3) groin pain. Percutaneous nerve block was unsuccessful in all patients. Four had previous surgery for pain. There were no complications. With a minimum of 6 weeks follow-up, 20 of 21 patients reported significant improvement or resolution of symptoms. A combined laparoscopic and open approach for postherniorrhaphy groin pain results in excellent patient satisfaction with minimal morbidity. It may be the preferred technique for the definitive management of chronic neuralgia after hernia repair.