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IntroductionThe size of a hiatal hernia (HH) is a key determinant of the approach for surgical repair. However, endoscopists will often utilize subjective terms, such as “small,” “medium,” and “large,” without any standardized objective correlations. The aim of this study was to identify HHs described using objective axial length measurements versus subjective size allocations and compare them to their corresponding manometry and barium swallow studies.Methods and proceduresRetrospective chart reviews were conducted on 93 patients diagnosed endoscopically with HHs between 2017 and 2021 at Newton-Wellesley Hospital. Information was collected regarding their HH subjective size assessment, axial length measurement (cm), manometry results, and barium swallow readings. Linear regression models were used to analyze the correlation between the objective endoscopic axial length measurements and manometry measurements. Ordered logistic regression models were used to correlate the ordinal endoscopic and barium swallow subjective size allocations with the continuous axial length measurements and manometry measurements.ResultsOf the 93 endoscopy reports, 42 included a subjective size estimate, 38 had axial length measurement, and 12 gave both. Of the 34 barium swallow reads, only one gave an objective HH size measurement. Axial length measurements were significantly correlated with the manometry measurements (R2 = 0.0957, p = 0.049). The endoscopic subjective size estimates were also closely related to the manometry measurements (R2 = 0.0543, p = 0.0164). Conversely, the subjective size estimates from barium swallow reads were not significantly correlated with the endoscopic axial length measurements (R2 = 0.0143, p = 0.366), endoscopic subjective size estimates (R2 = 0.0481, p = 0.0986), or the manometry measurements (R2 = 0.0418, p = 0.0738). Mesh placement was significantly correlated to pre-operative endoscopic axial length measurement (p = 0.0001), endoscopic subjective size estimate (p = 0.0301), and barium swallow read (p = 0.0211). However, mesh placement was not significantly correlated with pre-operative manometry measurements (0.2227).ConclusionsEndoscopic subjective size allocations and objective axial length measurements are associated with pre-operative objective measurements and intra-operative decisions, suggesting both can be used to guide clinical decision making. However, including axial length measurements in endoscopy reports can improve outcomes reporting.

Background Laparoscopic ventral hernia repair (LVHR) has been reported to have lower recurrence rates, fewer surgical site infections, and shorter hospital stays compared to open repair. Despite improved surgical outcomes with standard LVHR (sLVHR), seroma formation, eventration (or bulging of mesh or tissue), and hernia recurrence remain common complications. Our objective was to evaluate outcomes with trans-cutaneous closure of central defects in LVHR compared to sLVHR. Methods A retrospective review of 176 patients who underwent elective LVHR between January 2007 and December 2010 was performed. Of the 176 patients, 36 (20.5 %) had the LVHR-TCCD (trans-cutaneous closure of central defects) procedure and 140 (79.5 %) had sLVHR. The LVHR-TCCD cases were compared to a 1:1 case-matched control ( n  = 36). The case control group was matched by hernia type (primary versus secondary), hernia size, Ventral Hernia Working Group (VHWG) grade, institution, and follow-up duration. Patient demographics, co-morbidities, hernia characteristics, operative details, imaging data, and complications were collected. Patient satisfaction (using a 10-point, Likert-type scale), late postoperative pain (using the visual analogue scale), and patient functional status (using the Activities Assessment Scale; AAS) were analyzed. Continuous data were analyzed with either the unpaired Student’s t test or the Mann–Whitney U -test, while Fischer’s exact test was used to compare categorical data. Results Patient demographics, co-morbidities, hernia size, hernia type, mesh type, and surgical histories were similar between the LVHR-TCCD group and the case control group. The LVHR-TCCD patients had significantly lower rates of seroma formation (5.6 % versus 27.8 %; p  = 0.02), mesh eventration (0.0 % versus 41.4 %; p  = 0.0002), tissue eventration (4.0 % versus 37.9 %; p  = 0.003), clinical eventration (8.3 % versus 69.4 %; p  = 0.0001), and hernia recurrence (0.0 % versus 16.7 %; p  = 0.02) when compared to the sLVHR case control. Postoperative infectious complications and early complications classified by the Dindo-Clavien system were similar between the groups. Median follow-up was 24 months (range: 7–34 months) for both groups. Compared to the case control group, patients having undergone LVHR-TCCD had higher patient satisfaction scores (8.8 ± 0.4 versus 7.0 ± 0.5; p  = 0.008), cosmetic satisfaction scores (8.8 ± 0.4 versus 7.0 ± 0.6; p  = 0.01), and AAS functional status scores (79.1 ± 1.9 versus 71.3 ± 2.3; p  = 0.002). There was no difference in worst pain scores or the prevalence of chronic pain. Conclusions The incidence of seroma, mesh and tissue eventration, and hernia recurrence was significantly lower following LVHR-TCCD when compared to sLVHR. Subjective improvement in overall patient satisfaction, cosmetic satisfaction, and functional status was reported with closing the central defect. The LVHR-TCCD technique may be superior for treating ventral hernias due to lower complication rates and higher patient satisfaction and functional status.

Our goal was to set criteria for massive ventral hernia and to compare surgical outcomes and quality of life after ventral hernia repair (VHR). The International Hernia Mesh Registry was queried for patients undergoing VHR from 2007 to 2013. Defect was categorized as massive if the width or length was greater than 15 cm or area greater than 150 cm2. Massive VHR was compared to regular VHR. A total of 878 patients underwent VHR: 436 open, 442 laparoscopic with 13 deaths (1.5%) and 45 hernia recurrences (5.1%). Of those, 158 patients (18%) met criteria for massive VHR. Massive VHR patients had longer length of stay (LOS) and operative time and more hematomas, wound infections, wound complications, and pneumonias (P < .05). On multivariate analysis, LOS was longer, and early postoperative pain and activity limitation were greater in massive VHRs (P < .01). Massive VHR in the laparoscopic approach resulted in greater long-term mesh sensation (P < .01). VHR in massive hernias have increased rates of complications and longer LOS. •Massive VHR was defined as hernia defect length or width ≥15 cm or area ≥15 cm2.•Open and laparoscopic VHR were examined, comparing massive to regular VHR.•Both strata found massive VHR had increased LOS and operative time.•Massive VHR also had more hematomas, wound infections, and pneumonia•Patients with massive VHR have decreased early postoperative QOL.

Background The most common technique described for robotic ventral hernia repair (RVHR) is intraperitoneal onlay mesh (IPOM). With the evolution of robotics, advanced techniques including retro rectus mesh reinforcement, and component separation are being popularized. However, these procedures require more dissection, and longer operative times. In this study we reviewed our experience with robotic ventral/incisional hernia repair (RVHR) with hernia defect closure (HDC) and IPOM. Methods Retrospective chart review and follow-up of 31 consecutive cases of ventral/incisional hernia treated between August 2011 and December 2018. Demographics, operative times, blood loss, length of stay (LOS), hernia size, location, and type, mesh size and type, recurrence, conversion to open ventral hernia repair (OVHR) and complications including bleeding, seroma formation and infection were analyzed. Results Mean age was 63.9 years old, with median BMI of 31.24 kg/m 2 . Median hernia area was 17 cm 2 . Mean operating time was 142.61 min (SD 59.79). Mean LOS was 1.46 days (range 1–5), with 48% being outpatient, and overnight stay in 32% for pain control. Conversion was necessary in 12.9% cases. Complication rate was 3% for enterotomy. Recurrence was 14.81% after a mean follow-up of 26.96 months. There was significant association of recurrence with COPD history ( P  = 0.0215) and multiple hernia defects ( P  = 0.0376). Conclusion Our recurrence rate (14.81%) compares favorably to those reported in literature (16.7%) for LVHR with HDC and IPOM. Our experience also indicates that IPOM is associated with satisfactory outcomes, low conversion and complications rates, and short LOS.

BackgroundDespite the importance of defect size, there are no standardized recommendations on how to measure ventral hernias. Our aims were to determine (1) if any significant differences existed between various methods of measuring ventral hernias and (2) the effect of these methods of measurement on selection of mesh size.MethodA prospective study of all patients enrolled in a randomized trial assessing laparoscopic ventral hernia repair at a single institution from 3/2015 to 7/2016 was eligible for inclusion. Abdominal wall hernia defect size was determined by multiplying defect length and width obtained separately using each of five methods: radiographic (CT), intraoperative with abdomen desufflated, intraoperative with abdomen insufflated to 15 mmHg (intra-abdominal aspect), intraoperative with abdomen insufflated to 15 mmHg (extra-abdominal aspect), and clinical. The primary outcome was intraclass correlation between the five different methods of measurement for each patient. Secondary outcome was changes in mesh selection assuming a 5 cm overlap in each direction.ResultsFifty patients met inclusion criteria for assessment. The five different measurement methods had an intraclass correlation for each patient of 0.533 (95% CI 0.373–0.697) (weak correlation) for length; 0.737 (95% CI 0.613–0.844) (moderate correlation) for width; and 0.684 (95% CI 0.544–0.810) (moderate correlation) for area. Different types of measurements affected mesh selection in up to 56% of cases.ConclusionAmong five common methods of measuring abdominal wall hernia defect, sizes are only weakly to moderately correlated. Further studies are needed to determine which method results in optimally sized abdominal wall prostheses and superior ventral hernia repair.

Background A laparoscopic surgical approach for obturator hernia (OH) repair is uncommon. The aim of the present study was to assess the effectiveness of laparoscopic transabdominal preperitoneal (TAPP) repair for OH. Methods From 2001 to May 2010, 659 patients with inguinal hernia underwent TAPP repair at in our institutes. Among these, the eight patients with OH were the subjects of this study. Results Three of the eight patients were diagnosed as having occult OH, and the other five were diagnosed preoperatively, by ultrasonography and/or computed tomography, as having strangulated OH. Bilateral OH was found in five patients (63%), and combined groin hernias, either unilaterally or bilaterally, were observed in seven patients (88%), all of whom had femoral hernia. Of the five patients with bowel obstruction at presentation, four were determined not to require resection after assessment of the intestinal viability by laparoscopy. There was one case of conversion to a two-stage hernia repair performed to avoid mesh contamination: addition of mini-laparotomy, followed by extraction of the gangrenous intestine for resection and anastomosis with simple peritoneal closure of the hernia defect in the first stage, and a Kugel hernia repair in the second stage. There was no incidence of postoperative morbidity, mortality, or recurrence. Conclusions Because TAPP allows assessment of not only the entire groin area bilaterally but also simultaneous assessment of the viability of the incarcerated intestine with a minimum abdominal wall defect, we believe that it is an adequate approach to the treatment of both occult and acutely incarcerated OH. Two-stage hernia repair is technically feasible in patients requiring resection of the incarcerated intestine.

Purpose The objective of the study was to evaluate peri- and postoperative outcomes, especially severe complications in adult incisional ventral hernia repair performed by open or laparoscopic surgery. Methods Adult patients who were operated for incisional ventral hernias in two tertiary hospitals in Finland during 2006–2012 were included in the study. Clinical data were collected from patient registers. Peri- and postoperative parameters were gathered and compared between open and laparoscopic groups. Postoperative complications were analyzed, and the focus was on major complications. Results The results of 818 hernioplasties were evaluated: 291 (36.3 %) open and 527 (63.7 %) laparoscopic operations. In the laparoscopic group, the number of patients with postoperative complications was slightly lower (18.4 vs. 23.4 %, p  = 0.090), and there were significantly fewer surgical site infections (3.2 vs. 8.6 %, p  = 0.001). Twelve major complications occurred. In the laparoscopic group, four of the five major complications were consequences of undetected enterotomies, leading to reoperations, longer hospital stays, and death of one patient. Major complications in the open group consisted of four cardiac infarctions and three septic surgical site infections. Complex adhesions had a significant influence on major complications, enterotomies, and surgical site infections. Laparoscopic operations had a lower mean blood loss (13 vs. 31.5 ml, p  = 0.028), and hospital stay (4 vs. 6 days, p  = 0.001) compared to open operations. Conclusions Laparoscopic incisional ventral hernia repair has a low rate of postoperative complications but it is associated with an increased risk of undetected enterotomies, in particular during cases involving adhesiolysis.

The aim of this study was to obtain information about the mechanical properties of six meshes commonly used for hernia repair (Surgipro ® , Optilene ® , Infinit ® , DynaMesh ® , Ultrapro ™ and TIGR ® ) by planar biaxial tests. Stress-stretch behavior and equibiaxial stiffness were evaluated, and the anisotropy was determined by testing. In particular, equibiaxial test (equal simultaneous loading in both directions) and biaxial test (half of the load in one direction following the Laplace law) were selected as a representation of physiologically relevant loads. The majority of the meshes displayed values in the range of 8 and 18 (N/mm) in each direction for equibiaxial stiffness (tangent modulus under equibiaxial load state in both directions), while a few achieved 28 and 50 (N/mm) ( Infinit ® and TIGR ® ). Only the Surgipro ® mesh exhibited planar isotropy, with similar mechanical properties regardless of the direction of loading, and an anisotropy ratio of 1.18. Optilene ® , DynaMesh ® , Ultrapro ® and TIGR ® exhibited moderate anisotropy with ratios of 1.82, 1.84, 2.17 and 1.47, respectively. The Infinit ® scaffold exhibited very high anisotropy with a ratio of 3.37. These trends in material anisotropic response changed during the physiological state in the human abdominal wall, i.e. T :0.5 T test, which the meshes were loaded in one direction with half the load used in the other direction. The Surgipro ® mesh increased its anisotropic response (Anis Phys  = 0.478) and the materials that demonstrated moderate and high anisotropic responses during multiaxial testing presented a quasi-isotropic response, especially the Infinit ® mesh that decreased its anisotropic response from 3.369 to 1.292.

Repair of incisional hernias using the laparoscopic technique has continued to evolve since its inception in 1991. An analysis of the current literature has revealed that hernias as large as 1600 cm2 have been successfully repaired with this method. The average size appears to be about 105 cm2. Several choices of a biomaterial are available today, differing in the type of synthetic product or products that are used to manufacture them. Others incorporate an absorbable component. The goal of all of them is to prevent adhesion formation. The fixation devices that can be used are also varied. The results of laparoscopic incisional hernia repair are described. The conversion rate of these procedures is an impressive 2.4% with an enterotomy rate of 1.8%. These results affirm the low risk of this operation. The recurrence rate of 4.2% confirms the permanence of the repair. This procedure may become the standard of care in the near future.