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Kushner BS, Holden T, Han B, Sehnert M, Majumder A, Blatnik JA, Holden SE. Randomized control trial evaluating the use of a shared decision-making aid for older ventral hernia patients in the Geriatric Assessment and Medical Preoperative Screening (GrAMPS) Program. Hernia 2022; 26:901-909. [PMID: 34686942 DOI: 10.1007/s10029-021-02524-3] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2021] [Accepted: 10/04/2021] [Indexed: 12/19/2022]
Abstract
PURPOSE Shared decision making (SDM) is ideally suited to abdominal wall surgery in older adults given the breadth of decision making required by the hernia surgeon and the impact on quality of life (QOL) by various treatment options. Given the paucity of literature surrounding SDM in hernia patients, the feasibility of a novel, formalized SDM aid/tool was evaluated in a pilot randomized trial. METHODS Patients 60 years or older with a diagnosed ventral hernia were prospectively randomized at an academic hernia center. In the experimental arm, a novel SDM tool, based on the SHARE Approach, guided the consultation. Previously validated SDM assessments and patient's hernia knowledge retention was measured. RESULTS Eighteen (18) patients were randomized (9 control and 9 experimental). Cohorts were well matched in age (p = 0.51), comorbidities (Charlson Comorbidity Score: p = 0.43) and frailty (mFI-11: p = 0.19; Risk Analysis Index: p = 0.33). Consultation time was 11 min longer in the experimental cohort (p < 0.01). There was a trend towards better Decisional Conflict Scores in the experimental group (p = 0.25) and the experimental cohort had improved post-visit retained hernia knowledge (p < 0.01). All patients in the experimental arm (100%) enjoyed working through the SDM aid/tool and felt it was a worthwhile exercise. CONCLUSION Incorporating a formalized SDM tool into a busy hernia surgical practice is feasible and well received by patients. In addition, early results suggest it improves retention of basic hernia knowledge and may reduce patient's decisional conflict. Next steps include condensing the SDM tool to enhance efficiency within the clinic and beginning a large, randomized control trial.
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Affiliation(s)
- B S Kushner
- Department of Surgery, Washington University School of Medicine, 660 South Euclid Avenue, Campus Box 8109, Saint Louis, MO, 63110, USA.
| | - T Holden
- Department of Medicine, Division of Geriatrics and Nutritional Science, Washington University School of Medicine, 660 South Euclid Avenue, Campus Box 8109, Saint Louis, MO, 63110, USA
| | - B Han
- Department of Surgery, Washington University School of Medicine, 660 South Euclid Avenue, Campus Box 8109, Saint Louis, MO, 63110, USA
| | - M Sehnert
- Department of Surgery, Washington University School of Medicine, 660 South Euclid Avenue, Campus Box 8109, Saint Louis, MO, 63110, USA
| | - A Majumder
- Department of Surgery, Washington University School of Medicine, 660 South Euclid Avenue, Campus Box 8109, Saint Louis, MO, 63110, USA
| | - J A Blatnik
- Department of Surgery, Washington University School of Medicine, 660 South Euclid Avenue, Campus Box 8109, Saint Louis, MO, 63110, USA
| | - S E Holden
- Department of Surgery, Washington University School of Medicine, 660 South Euclid Avenue, Campus Box 8109, Saint Louis, MO, 63110, USA
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Hope WW, El-Ghazzawy AG, Winterstein BA, Blatnik JA, Davis SS, Greenberg JA, Sanchez NC, Pauli EM, Tseng DM, LeBlanc KA, Roberts KE, Bower CE, Parra-Davila E, Roth JS, Deeken CR, Smith EF. A prospective, multicenter trial of a long-term bioabsorbable mesh with Sepra technology in cohort of challenging laparoscopic ventral or incisional hernia repairs (ATLAS trial). Ann Med Surg (Lond) 2022; 73:103156. [PMID: 34976385 PMCID: PMC8689054 DOI: 10.1016/j.amsu.2021.103156] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2021] [Revised: 12/04/2021] [Accepted: 12/05/2021] [Indexed: 12/15/2022] Open
Abstract
BACKGROUND This prospective, multicenter, single-arm, open-label study evaluated P4HB-ST mesh in laparoscopic ventral or incisional hernia repair (LVIHR) in patients with Class I (clean) wounds at high risk for Surgical Site Occurrence (SSO). METHODS Primary endpoint was SSO requiring intervention <45 days. Secondary endpoints included: surgical procedure time, length of stay, SSO >45 days, hernia recurrence, device-related adverse events, reoperation, and Quality of Life at 1, 3, 6, 12, 18, and 24-months. RESULTS 120 patients (52.5% male), mean age of 55.0 ± 14.9 years, and BMI of 33.2 ± 4.5 kg/m2 received P4HB-ST mesh. Patient-reported comorbid conditions included: obesity (86.7%), active smoker (45.0%), COPD (5.0%), diabetes (16.7%), immunosuppression (2.5%), coronary artery disease (7.5%), chronic corticosteroid use (2.5%), hypoalbuminemia (0.8%), advanced age (10.0%), and renal insufficiency (0.8%). Hernia types were primary ventral (44.2%), primary incisional (37.5%), recurrent ventral (5.8%), and recurrent incisional (12.5%). Patients underwent LVIHR in laparoscopic (55.8%) or robotic-assisted cases (44.2%), mean defect size 15.7 ± 28.3 cm2, mean procedure time 85.9 ± 43.0 min, and mean length of stay 1.0 ± 1.4 days. There were no SSOs requiring intervention beyond 45 days, n = 38 (31.7%) recurrences, n = 22 (18.3%) reoperations, and n = 2 (1.7%) device-related adverse events (excluding recurrence). CONCLUSION P4HB-ST mesh demonstrated low rates of SSO and device-related complications, with improved quality of life scores, and reoperation rate comparable to other published studies. Recurrence rate was higher than expected at 31.7%. However, when analyzed by hernia defect size, recurrence was disproportionately high in defects ≥7.1 cm2 (43.3%) compared to defects <7.1 cm2 (18.6%). Thus, in LVIHR, P4HB-ST may be better suited for small defects. Caution is warranted when utilizing P4HB-ST in laparoscopic IPOM repair of larger defects until additional studies can further investigate outcomes.
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Affiliation(s)
- William W. Hope
- New Hanover Regional Medical Center, Department of Surgery, Wilmington, NC, United States
| | | | | | - Jeffrey A. Blatnik
- Washington University, Department of Surgery, St. Louis, MO, United States
| | - S. Scott Davis
- Emory University, Department of Surgery, Atlanta, GA, United States
| | - Jacob A. Greenberg
- University of Wisconsin, Department of Surgery, Madison, WI, United States
| | - Noel C. Sanchez
- Via-Christi Hospital, Department of Surgery, Wichita, KS, United States
| | - Eric M. Pauli
- Penn State Hershey Medical Center, Department of Surgery, Hershey, PA, United States
| | - Daniel M. Tseng
- Legacy Health, Department of Surgery, Portland, OR, United States
| | - Karl A. LeBlanc
- Our Lady of the Lake Regional Medical Center, Department of Surgery, Baton Rouge, LA, United States
| | - Kurt E. Roberts
- St. Francis Hospital, Department of Surgery, Hartford, CT, United States
| | - Curtis E. Bower
- Carilion Clinic, Department of Surgery, Roanoke, VA, United States
| | | | - J. Scott Roth
- University of Kentucky, Department of Surgery, Lexington, KY, United States
| | | | - Eric F. Smith
- Georgetown Community Hospital, Department of Surgery, Georgetown, KY, United States
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Kushner BS, Han BJ, Majumder A, Holden S, Blatnik JA. The Open Approach Is Single Greatest Risk Factor for Increased Perioperative Morbidity in Patients Undergoing Transversus Abdominis Release. J Am Coll Surg 2021. [DOI: 10.1016/j.jamcollsurg.2021.08.143] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Kushner BS, Pierce A, Mody J, Hall BL, Martin J, Blatnik JA, Eckhouse SR. Reducing Operating Room Costs: Perceptions Regarding the Implementation of Case Cost Receipts. J Am Coll Surg 2021. [DOI: 10.1016/j.jamcollsurg.2021.07.235] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Kushner BS, Pierce A, Mody J, Hall BL, Martin J, Blatnik JA, Eckhouse SR. Reducing Operating Room Cost: Surgical Trainees Perceptions. J Am Coll Surg 2021. [DOI: 10.1016/j.jamcollsurg.2021.07.234] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Kushner BS, Hall B, Pierce A, Mody J, Guth RM, Martin J, Blatnik JA, Eckhouse SR. Reducing Operating Room Cost: Comparing Attending and Surgical Trainee Perceptions About the Implementation of Supply Receipts. J Am Coll Surg 2021; 233:710-721. [PMID: 34530125 DOI: 10.1016/j.jamcollsurg.2021.08.690] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2021] [Revised: 08/23/2021] [Accepted: 08/24/2021] [Indexed: 11/17/2022]
Abstract
BACKGROUND As operating room (OR) expenditures increase, faculty and surgical trainees will play a key role in curbing future costs. However, supply cost utilization varies widely among providers and, despite requirements for cost education during surgical training, little is known about trainees' comfort discussing these topics. To improve OR cost transparency, our institution began delivering real-time supply "receipts" to faculty and trainees after each surgical case. This study compares faculty and surgical trainees' perceptions about supply receipts and their effect on individual practice and cultural change. STUDY DESIGN Faculty and surgical trainees (residents and fellows) from all adult surgical specialties at a large academic center were emailed separate surveys. RESULTS A total of 120 faculty (30.0% response rate) and 119 trainees (35.7% response rate) completed the survey. Compared with trainees, faculty are more confident discussing OR costs (p < 0.001). Two-thirds of trainees report discussing OR costs with faculty as opposed to 77.0% of faculty who acknowledge having these conversations (p = 0.08). Both groups showed a strong commitment to reduce OR expenditures, with 87.3% of faculty and 90.0% of trainees expressing a responsibility to curb OR costs (p = 0.84). After 1 year of implementation, faculty continue to have high interest levels in supply receipts (82.4%) and many surgeons review them after each case (67.7%). In addition, 74.3% of faculty are now aware of how to lower OR costs and 52.5% have changed the OR supplies they use. Trainees, in particular, desire additional cost-reducing efforts at our institution (p < 0.001). CONCLUSIONS Supply receipts have been well received and have led to meaningful cultural changes. However, trainees are less confident discussing these issues and desire a greater emphasis on OR cost in their curriculum.
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Affiliation(s)
| | - Bruce Hall
- Department of Surgery, Washington University; BJC HealthCare
| | - Andrew Pierce
- Perioperative Services, Barnes Jewish Hospital, St Louis, MO
| | - Jessica Mody
- Perioperative Services, Barnes Jewish Hospital, St Louis, MO
| | | | - Jackie Martin
- Perioperative Services, Barnes Jewish Hospital, St Louis, MO
| | | | - Shaina R Eckhouse
- Department of Surgery, Washington University; Perioperative Services, Barnes Jewish Hospital, St Louis, MO
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Kushner BS, Han B, Holden SE, Majumder A, Blatnik JA. Does immunosuppression use increase perioperative wound morbidity in patients undergoing transversus abdominis release? Surgery 2021; 171:811-817. [PMID: 34474933 DOI: 10.1016/j.surg.2021.08.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2021] [Revised: 07/13/2021] [Accepted: 08/01/2021] [Indexed: 10/20/2022]
Abstract
BACKGROUND Transversus abdominis release is an effective procedure for complex ventral hernias. As wound complications contribute to hernia recurrences, mitigating risk factors is vitally important for hernia surgeons. Although immunosuppression can impair wound healing, it has inconsistently predicted wound occurrences, and its effect on wound morbidity after a transversus abdominis release is unknown. METHODS Patients undergoing either an elective open or robotic bilateral transversus abdominis release with permanent synthetic mesh were retrospectively stratified by perioperative immunosuppression and secondarily by procedure type (open versus robotic) and immunosuppression. RESULTS A total of 321 patients were included for analysis. Overall, 63 (19.6%) patients were on chronic immunosuppression, with history of solid-organ transplant being the most common indication (43 patients). Patients stratified by perioperative immunosuppression were well-matched with similar defect size (P = .97), body mass index ≥30 (P = .32), diabetes (P = .09), history of surgical site infection (P = .53), surgical approach (P = .53), and tobacco use history (P = .33). No differences between cohorts were elicited for any wound event when stratified by immunosuppression use. Similarly, no differences were elicited when cohorts were further stratified also by procedure type. CONCLUSION Chronic immunosuppression is often viewed as a notable risk factor for wound occurrences after surgery. However, our data suggest immunosuppression may not significantly increase the risk of perioperative wound morbidity follow transversus abdominis release as previously predicted.
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Affiliation(s)
- Bradley S Kushner
- Department of Surgery, Division of Minimally Invasive Surgery, Washington University, Saint Louis, MO.
| | - Britta Han
- Department of Surgery, Division of Minimally Invasive Surgery, Washington University, Saint Louis, MO
| | - Sara E Holden
- Department of Surgery, Division of Minimally Invasive Surgery, Washington University, Saint Louis, MO
| | - Arnab Majumder
- Department of Surgery, Division of Minimally Invasive Surgery, Washington University, Saint Louis, MO
| | - Jeffrey A Blatnik
- Department of Surgery, Division of Minimally Invasive Surgery, Washington University, Saint Louis, MO
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Miller MP, Blatnik JA. Evaluation of information on the Internet regarding surgical mesh for hernia repair: analysis of websites found through three popular search engines. Hernia 2021; 26:581-587. [PMID: 33550489 DOI: 10.1007/s10029-021-02375-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2020] [Accepted: 01/22/2021] [Indexed: 11/27/2022]
Abstract
PURPOSE Hernia repair remains one of the most common surgical procedures. Surgical mesh usage has been highlighted in the media due to recent lawsuits and recalls. Patients can read potentially biased information on the Internet and this can influence a patient's healthcare decisions. The purpose of this study is to evaluate search engine listings and respective website content of surgical mesh for hernia repair. METHODS Websites evaluated were derived from four keyword searches targeting surgical mesh with Google, Yahoo, and Bing. Websites from the first two pages of each search were evaluated for content comprehensiveness. RESULTS The largest category of websites from search engine results was legal advertisements, accounting for 20% of all results. These websites also held the first position on every results page. Legal advertisements and blog/forum websites were the most skewed toward surgical mesh risks and complications vs. benefits. There was a reduction in advertisements in 2020 vs. 2018. The most comprehensive non-advertisement websites were found more frequently. Overall, only 44% of websites presented references and 50% cited supporting data. Finally, 46% of 'recommended search terms' displayed on the search engine results page had a risk, complication, or legal bias. CONCLUSIONS These results emphasize the challenges of using an Internet search engine to find comprehensive and appropriate information regarding surgical mesh. This manuscript underscores the importance for physicians to direct patients toward specific websites to mitigate their exposure to websites that are biased and not appropriate for patients searching for an accurate and comprehensive overview of surgical mesh.
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Affiliation(s)
- Matthew P Miller
- Washington University in Saint Louis School of Medicine, Saint Louis, MO, United States.
| | - Jeffrey A Blatnik
- Department of Surgery, Washington University in Saint Louis School of Medicine, Saint Louis, MO, United States
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Abstract
Abdominal wall hernia repair is one of the most common operations done by general surgeons today. Patients with incisional hernias can be extremely challenging to manage due to a number of factors that include obesity, prior hernia repairs, previous mesh placement, loss of domain, and other variables. The approach to patients with incisional hernias has evolved considerably over the last 20 years due to both advances in mesh technology and surgical approaches. Key factors in a successful outcome include modification of risk factors prior to surgery such as smoking cessation and weight reduction, selection of mesh appropriate to the hernia type and planned location of the mesh, and broad overlap of mesh beyond the margins of the hernia defect. Newer techniques such as transabdominis release and component separation with retrorectus mesh placement and robotic approaches to abdominal wall hernia are being increasingly utilized in these patients. This article reviews these aspects of abdominal wall hernia repair with a discussion of recent results and the importance of quality improvement and monitoring of outcomes.
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Affiliation(s)
- Jeffrey A Blatnik
- Department of Surgery, Section of Minimally Invasive Surgery, Washington University School of Medicine, 660 S Euclid Ave., Box 8109, St. Louis, MO, 63110, USA
| | - L Michael Brunt
- Department of Surgery, Section of Minimally Invasive Surgery, Washington University School of Medicine, 660 S Euclid Ave., Box 8109, St. Louis, MO, 63110, USA.
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Tan WH, McAllister JM, Blatnik JA. Efficacy of robotic versus open transversus abdominis release in a porcine model. Hernia 2019; 23:29-35. [PMID: 30370479 DOI: 10.1007/s10029-018-1836-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2018] [Accepted: 10/10/2018] [Indexed: 11/30/2022]
Abstract
PURPOSE Transversus abdominis muscle release (TAR) combines retromuscular mesh placement with posterior component separation and muscle release. TAR is usually an open technique for abdominal wall reconstruction; however, several centers have performed this operation robotically and claim better clinical outcomes when compared to open surgery. We sought to compare robotic versus open TAR utilizing a porcine model. METHODS Animals were randomized to open versus robotic TAR with mesh placement, survived for 4 weeks, then underwent diagnostic laparoscopy to assess adhesive burden and adhesion tenacity. T-peel testing was utilized to assess mesh ingrowth. The primary outcome was adhesive burden; secondary outcomes included mesh incorporation, contraction, and operative time. RESULTS Nine robotic and eight open TARs were performed. Mean operative time was significantly shorter for the open cases compared to robotic cases (88.6 ± 12.9 min versus 228.3 ± 46.2, p < 0.01). Operative time in the robotic arm of the study decreased over time, from 300 to 165 min. No difference was seen in the mean adhesion area between the two groups. Adhesion tenacity and mesh flatness were similar. The work required to peel the mesh off surrounding tissue was significantly higher in the open TAR than in the robotic TAR group: 52.6 ± 15.5 and 32.9 ± 10.6 mJ/cm2, respectively (p < 0.01). CONCLUSIONS There were no differences in adhesions between the robotic and open approaches, but greater mesh contraction and ingrowth was observed in the open TAR group. Though operative time was longer in the robotic group, time dropped by about 40% from the first case to the last.
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Affiliation(s)
- W H Tan
- Section of Minimally Invasive Surgery, Department of Surgery, Washington University in St. Louis School of Medicine, 660 South Euclid Avenue, Box 8109, St. Louis, MO, 63110, USA.
| | - J M McAllister
- Section of Minimally Invasive Surgery, Department of Surgery, Washington University in St. Louis School of Medicine, 660 South Euclid Avenue, Box 8109, St. Louis, MO, 63110, USA
| | - J A Blatnik
- Section of Minimally Invasive Surgery, Department of Surgery, Washington University in St. Louis School of Medicine, 660 South Euclid Avenue, Box 8109, St. Louis, MO, 63110, USA
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Kahan LG, Blatnik JA. Critical Under-Reporting of Hernia Mesh Properties and Development of a Novel Package Label. J Am Coll Surg 2017; 226:117-125. [PMID: 29133265 DOI: 10.1016/j.jamcollsurg.2017.10.020] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2017] [Revised: 10/29/2017] [Accepted: 10/30/2017] [Indexed: 11/15/2022]
Abstract
BACKGROUND With an array of hernia meshes with varying properties, intraoperative decision making for the optimal mesh is critical. Although meshes are subjected to regulatory review through the Food and Drug Administration, it is unknown whether mesh properties are visually accessible. To facilitate greater knowledge for the surgeon on mesh choice, we aimed to comprehensively analyze hernia mesh packaging and regulations. STUDY DESIGN Labeling guidelines and 510(k) requirements across Food and Drug Administration-regulated products were analyzed and compared with mesh packaging. Packages and Instructions for Use were analyzed for commonly available hernia meshes. Literature review was conducted to understand recommended guidelines for mesh products. A novel hernia mesh packaging label was designed to rectify under-reporting. RESULTS We found that food labels undergo critical scrutiny and detailed specifications, yet medical devices are not subjected to similar guidelines. The highest reported property on packages was the presence of a barrier (80%), and the lowest reported property was barrier composition (33%). For Instructions for Use, the lowest reported properties were mechanics (31%) and thickness (11%), both of which were not reported on packaging. Descriptive terms for pore size and mechanics were reported inconsistently. To overcome this under-reporting of properties, we propose a novel packaging label with properties chosen from regulatory guidelines, packaging analysis, and literature review. CONCLUSIONS Although standardized terminology has been proposed in literature, property knowledge has not adequately permeated surgery, industry, or regulatory guidelines. There is extreme under-reporting and lack of consistency of clinically important mesh properties. Standardized packaging labels will provide accessibility of these properties and aim to bring standardized terminology into practice. With an increase in access to important properties, this can facilitate intraoperative decision making on a case-by-case basis.
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Affiliation(s)
- Lindsey G Kahan
- Department of Surgery, Washington University in St Louis School of Medicine, St Louis, MO
| | - Jeffrey A Blatnik
- Department of Surgery, Washington University in St Louis School of Medicine, St Louis, MO.
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Tan WHH, Yu J, Feaman S, McAllister J, Kahan LG, Quasebarth M, Blatnik JA, Eagon C, Awad M, Brunt M. Opioid Medication Use in the Surgical Patient: An Assessment of Prescribing Patterns and Utilization. J Am Coll Surg 2017. [DOI: 10.1016/j.jamcollsurg.2017.07.771] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Kahan LG, Lake SP, McAllister JM, Tan WH, Yu J, Thompson D, Brunt LM, Blatnik JA. Combined in vivo and ex vivo analysis of mesh mechanics in a porcine hernia model. Surg Endosc 2017; 32:820-830. [DOI: 10.1007/s00464-017-5749-9] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2017] [Accepted: 07/14/2017] [Indexed: 12/29/2022]
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Kahan LG, Guertler C, Blatnik JA, Lake SP. Validation of Single C-Arm Fluoroscopic Technique for Measuring In Vivo Abdominal Wall Deformation. J Biomech Eng 2017; 139:2633404. [DOI: 10.1115/1.4037073] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2017] [Indexed: 11/08/2022]
Abstract
Hernia meshes significantly reduce the recurrence rates in hernia repair. It is known that they affect the abdominal wall postimplantation, yet the understanding of in vivo mechanics in the mesh placement area is lacking. We established a single C-arm biplane fluoroscopic system to study strains at the interface between the mesh and repaired abdominal tissues. We aimed to validate this system for future porcine hernia repair studies. Custom matlab programs were written to correct for pincushion distortion, and direct linear transformation (DLT) reconstructed objects in 3D. Using a custom biplane-trough setup, image sets were acquired throughout the calibrated volume to evaluate a radio-opaque test piece with known distances between adjacent beads. Distances were measured postprocessing and compared to known measurements. Repeatability testing was conducted by taking image sets of the test piece in a fixed location to determine system movement. The error in areal stretch tracking was evaluated by imaging a square plate with fixed radio-opaque beads and using matlab programs to compare the measured areal stretch to known bead positions. Minor differences between measured and known distances in the test piece were not statistically different, and the system yielded a 0.01 mm bias in the XY plane and a precision of 0.61 mm. The measured areal stretch was 0.996, which was not significantly different than the expected value of 1. In addition, preliminary stretch data for a hernia mesh in a porcine model demonstrated technique feasibility to measure in vivo porcine abdominal mechanics.
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Affiliation(s)
- Lindsey G. Kahan
- Department of Surgery, Washington University in St. Louis School of Medicine, St. Louis, MO 63130 e-mail:
| | - Charlotte Guertler
- Department of Mechanical Engineering and Materials Science, Washington University in St. Louis, St. Louis, MO 63130 e-mail:
| | - Jeffrey A. Blatnik
- Department of Surgery, Washington University in St. Louis School of Medicine, St. Louis, MO 63130 e-mail:
| | - Spencer P. Lake
- Mem. ASME Department of Mechanical Engineering and Materials Science, Washington University in St. Louis, 1 Brookings Drive, Campus Box 1185, St. Louis, MO 63130
- Department of Orthopaedic Surgery, Washington University in St. Louis, 1 Brookings Drive, Campus Box 1185, St. Louis, MO 63130
- Department of Biomedical Engineering, Washington University in St. Louis, 1 Brookings Drive, Campus Box 1185, St. Louis, MO 63130 e-mail:
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Blatnik JA, Thatiparti TR, Krpata DM, Zuckerman ST, Rosen MJ, von Recum HA. Infection prevention using affinity polymer-coated, synthetic meshes in a pig hernia model. J Surg Res 2017; 219:5-10. [PMID: 29078909 DOI: 10.1016/j.jss.2017.05.003] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2016] [Revised: 04/06/2017] [Accepted: 05/01/2017] [Indexed: 01/17/2023]
Abstract
BACKGROUND Given concern for hernia mesh infection, surgeons often use biologic mesh which may provide reduced risk of infection but at the cost of decreased repair durability. We evaluated mesh coating to provide sustained release of antibiotics to prevent prosthetic mesh infection and also allow a durable repair. MATERIALS AND METHODS Cyclodextrin-based polymer was crosslinked onto multifilament polyester mesh and loaded with vancomycin (1.75 mg/cm2). Pigs received modified meshes (n = 6) or normal, untreated meshes (n = 4), which were implanted into acute 10 × 5 cm ventral hernia, then directly inoculated with 106 colony-forming unit (CFU) of methicillin-resistant Staphylococcus aureus (MRSA). These were compared to animals receiving normal, uninfected mesh. All mesh was secured in an underlay bridge manner, and after 30 d, the abdominal wall was removed for quantitative bacterial culture and biomechanical analysis. RESULTS All animals survived 30 d. All six animals with coated mesh cleared MRSA infection. The four control animals did not clear MRSA (P = 0.005). Quantitative bacterial load was higher in standard mesh versus drug-delivery mesh group (2.34 × 104versus 80.9 CFU/gm). These data were log10-transformed and analyzed by Welch's t-test (P = 0.001). Minimum number of CFUs detectable by assay (300) was used instead of zero. Biomechanical analysis of controls (1.82 N/mm infected; 1.71 N/mm uninfected) showed no difference to the modified meshes (1.31 N/mm) in tissue integration (P = 0.15). CONCLUSIONS We successfully prevented synthetic mesh infection in a pig model using a cyclodextrin-based polymer to locally deliver vancomycin to the hernia repair site and clearing antibiotic-resistant bacteria. Polymer coating did not impact the strength of the hernia repair.
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Affiliation(s)
- Jeffrey A Blatnik
- Department of Surgery, Washington University School of Medicine, St. Louis, Missouri
| | - Thimma R Thatiparti
- Department of Biomedical Engineering, Case Western Reserve University, Cleveland, Ohio
| | - David M Krpata
- Department of Surgery, Cleveland Clinic Comprehensive Hernia Center, Cleveland Clinic Foundation, Cleveland, Ohio
| | - Sean T Zuckerman
- Department of Biomedical Engineering, Case Western Reserve University, Cleveland, Ohio
| | - Michael J Rosen
- Department of Surgery, Cleveland Clinic Comprehensive Hernia Center, Cleveland Clinic Foundation, Cleveland, Ohio
| | - Horst A von Recum
- Department of Biomedical Engineering, Case Western Reserve University, Cleveland, Ohio.
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Blatnik JA, Krpata DM, Novitsky YW. Transversus Abdominis Release as an Alternative Component Separation Technique for Ventral Hernia Repair. JAMA Surg 2016; 151:383-4. [DOI: 10.1001/jamasurg.2015.3611] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022]
Affiliation(s)
- Jeffrey A. Blatnik
- Section of Minimally Invasive Surgery, Department of Surgery, Washington University School of Medicine, St Louis, Missouri
| | - David M. Krpata
- Division of General Surgery, Department of Surgery, University Hospitals Case Medical Center, Cleveland, Ohio
| | - Yuri W. Novitsky
- Division of General Surgery, Department of Surgery, University Hospitals Case Medical Center, Cleveland, Ohio
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Kelly KB, Krpata DM, Blatnik JA, Ponsky TA. Suture choice matters in rabbit model of laparoscopic, preperitoneal, inguinal hernia repair. J Laparoendosc Adv Surg Tech A 2014; 24:428-31. [PMID: 24784781 DOI: 10.1089/lap.2013.0352] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023] Open
Abstract
PURPOSE We evaluated the effect of different suture materials in a laparoscopic preperitoneal ligation of the patent processus vaginalis in a rabbit survival model. MATERIALS AND METHODS New Zealand White rabbits underwent laparoscopic assisted preperitoneal ligation of the patent processus vaginalis. The processus vaginalis was closed with silk (n=10), polyglactin 910 (Vicryl(®); Ethicon, a Johnson & Johnson Company, Somerville, NJ) (n=10), or polypropylene (Prolene(®); Ethicon) (n=10). At necropsy, the suture was removed, and repair integrity was evaluated. RESULTS All rabbits survived to necropsy without complications. No suture material was identified during necropsy of the Vicryl group. Eight (80%) of the Vicryl closures failed, with six (60%) failing at initial inspection. Following removal of suture material, nine (90%) of the Prolene closures failed, and only one (10%) of the silk closures failed (P=.009). CONCLUSIONS The silk suture resulted in an improved closure rate. Ligation with silk suture probably incited an increased inflammatory response that likely created a scar while persisting long enough for the scar to become established. In contrast, the Vicryl sutures probably failed because the sutures dissolved before a scar was able to fully develop. Finally, the Prolene closures were suture dependent as evidenced by failure when the suture was removed. Nonabsorbable braided suture may improve closure of pediatric indirect inguinal hernias during laparoscopic-assisted preperitoneal ligation.
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Affiliation(s)
- Katherine B Kelly
- 1 Department of Surgery, Case Western Reserve University, University Hospitals Case Medical Center , Cleveland, Ohio
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Abstract
OPINION STATEMENT Achalasia, although rare, remains one of the most commonly diagnosed disorders of esophageal motility. It results from an idiopathic loss of ganglion cells responsible for esophageal motility and relaxation of the lower esophageal sphincter (LES). As a result, patients present with worsening dysphagia to both liquids and solids and often suffer from significant regurgitation of retained food in the esophagus. When the diagnosis of achalasia is suspected, patients should undergo evaluation with esophageal motility testing, endoscopic examination, and contrast esophagram. Once the diagnosis of achalasia has been established, options for treatment rely on controlling patient symptoms. Medical options are available, but their effectiveness is inconsistent. Endoscopic options include injection of botulinum toxin, which can achieve good short-term results, and pneumatic balloon dilation (PBD), considered the most effective non-surgical option. Surgical options, including laparoscopic, open, or endoscopic myotomy, and provide long-lasting results. This chapter will review achalasia and the treatment options available.
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Affiliation(s)
- Jeffrey A Blatnik
- Department of Surgery, University Hospitals Case Medical Center, 11100 Euclid, 5047, Cleveland, OH, 44106, USA,
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Gao Y, Liu LJ, Blatnik JA, Krpata DM, Anderson JM, Criss CN, Posielski N, Novitsky YW. Methodology of fibroblast and mesenchymal stem cell coating of surgical meshes: a pilot analysis. J Biomed Mater Res B Appl Biomater 2013; 102:797-805. [PMID: 24142485 DOI: 10.1002/jbm.b.33061] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2013] [Revised: 08/11/2013] [Accepted: 09/27/2013] [Indexed: 12/27/2022]
Abstract
Coating of various synthetic, absorbable, and biologic meshes with mesenchymal stem cells (MSCs) and fibroblasts was analyzed qualitatively and quantitatively. Five hernia meshes-light weight monofilament polypropylene (Soft Mesh), polyester (Parietex-TET), polylactide composite (TIGR), heavy weight monofilament polypropylene (Marlex), and porcine dermal collagen (Strattice)-were coated with three cell lines: human dermal fibroblasts (HFs), rat kidney fibroblasts (NRKs), and rat MSCs. Cell densities were determined at different time points. Samples also underwent histology and transmission electron microscopic (TEM) analyses. It required HFs 3 weeks to cover the entire mesh, while only 2 weeks for NRKs and MSCs to do so. MSCs had no preference for any of the meshes and produced the highest cell densities on Parietex and TIGR. Substrate-preference accounted for the significantly lower fibroblast densities on TIGR than Parietex. Fibroblasts failed to coat Marlex. Strattice, which had the least surface area, generated comparable cell densities to Parietex. Both histology and TEM confirmed cell coating of mesh surface. Various prosthetics can be coated by certain cell strains. Both mesh composition and cell preference dramatically influence the coating process. This methodology provides foundation for novel avenues of modulation of host response to various modern synthetic and biologic meshes.
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Affiliation(s)
- Yue Gao
- Department of Surgery, Case Comprehensive Hernia Center, University Hospitals Case Medical Center, Case Western Reserve University, Cleveland, Ohio
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Abstract
The management of pancreatic fistulas can be complex and mandates a multidisciplinary approach. Basic principles of fistula control/patient stabilization, delineation of ductal anatomy, and definitive therapy remain of paramount importance.
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Affiliation(s)
- Jeffrey A Blatnik
- Department of Surgery, Case Western Reserve University, University Hospitals Case Medical Center, 11100 Euclid Avenue, Cleveland, OH 44106, USA
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Hicks CW, Blatnik JA, Krpata DM, Novitsky YW, Rosen MJ. History of methicillin-resistant Staphylococcus aureus (MRSA) surgical site infection may not be a contraindication to ventral hernia repair with synthetic mesh: a preliminary report. Hernia 2013; 18:65-70. [PMID: 23329253 DOI: 10.1007/s10029-012-1035-x] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2012] [Accepted: 12/27/2012] [Indexed: 11/26/2022]
Abstract
PURPOSE A history of methicillin-resistant Staphylococcus aureus (MRSA) surgical site infection presents a significant surgical dilemma as to the risk of subsequent mesh infection, even if no active infection is present. We investigated the outcomes of ventral hernia repair with synthetic mesh in patients with prior MRSA surgical site infections (SSIs). METHODS All patients with a clean wound but prior MRSA SSI undergoing open ventral hernia repair with mesh by a single surgeon over a 3-year period were reviewed for the development of any major (need for readmission, operative debridement, or mesh removal) or minor SSI. All patients received peri-operative intravenous vancomycin and prolonged suppressive oral trimethoprim/sulfamethoxazole or doxycycline. RESULTS Ten patients (male = 7, female = 3) with clean wounds and a history of MRSA SSI underwent open ventral hernia repair with retrorectus synthetic mesh placement. Mean follow-up was 13.5 ± 3.3 months. Overall, two patients (20 %) developed SSIs (minor = 2, major = 0). Both SSIs were successfully managed with therapeutic oral antibiotics and local wound care without need for surgical debridement or mesh removal. There have been no hernia recurrences in any of the patients. CONCLUSIONS Preliminary results suggest that history of MRSA infection may not be a contraindication to the use of synthetic mesh for ventral hernia repair. Macroporous lightweight meshes, combined with use of prolonged suppressive antibiotics and sublay retromuscular mesh placement that provides complete tissue coverage, should be further investigated as an acceptable prosthetic choice when planning a complex ventral hernia repair in the setting of prior MRSA SSI.
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Affiliation(s)
- C W Hicks
- Department of Surgery, The Johns Hopkins Hospital, Baltimore, MD, USA,
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Krpata DM, Blatnik JA, Novitsky YW, Rosen MJ. Evaluation of high-risk, comorbid patients undergoing open ventral hernia repair with synthetic mesh. Surgery 2013; 153:120-5. [DOI: 10.1016/j.surg.2012.06.003] [Citation(s) in RCA: 93] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2011] [Accepted: 06/04/2012] [Indexed: 11/30/2022]
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Harth KC, Blatnik JA, Anderson JM, Jacobs MR, Zeinali F, Rosen MJ. Effect of surgical wound classification on biologic graft performance in complex hernia repair: an experimental study. Surgery 2012; 153:481-92. [PMID: 23218885 DOI: 10.1016/j.surg.2012.08.064] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2011] [Accepted: 08/30/2012] [Indexed: 10/27/2022]
Abstract
BACKGROUND Despite relatively sparse data regarding their outcomes in the setting of infection, biologic grafts have gained rapid acceptance by the surgical community for complex hernia repair. These materials are heterogeneous in their procurement and processing techniques, which may ultimately have an impact in their ability to withstand infection. The objective of this study is to evaluate the impact of varying levels of contamination on biologic graft performance in a chronic ventral hernia animal model. METHODS Four commonly applied biologic grafts were used in the repair of a chronic ventral hernia rat model (n = 218). Each material was repaired in the setting of 1 of 4 surgical wound classifications (clean, clean contaminated, contaminated, dirty infected) with Staphylococcus aureus as our inoculum agent. After a 30-day survival, repairs underwent quantitative cultures, histological, and biomechanical testing. RESULTS Marked differences were observed in biologic graft bacterial burden, biomechanical and histological responses at 30 days. Persistent bacterial burden varied among the biologic grafts and increased with increasing wound contamination (P < .05). Delays in wound healing were observed in the contaminated and dirty infected setting (P < .05). Increasing infection weakened the biomechanical strength of repairs (P < .05). CONCLUSION The degree of bacterial contamination at the time of repair affected the rates of bacterial clearance, wound-healing ability, and subsequent repair strength. Material source and processing techniques might alter graft durability, biocompatibility, and ability to clear bacteria in a contaminated field. Clinical trials are warranted in contaminated settings.
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Affiliation(s)
- Karem C Harth
- Department of Surgery, University Hospitals Case Medical Center, Cleveland, OH 44106-5047, USA
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Kanters AE, Krpata DM, Blatnik JA, Novitsky YM, Rosen MJ. Modified Hernia Grading Scale to Stratify Surgical Site Occurrence after Open Ventral Hernia Repairs. J Am Coll Surg 2012; 215:787-93. [DOI: 10.1016/j.jamcollsurg.2012.08.012] [Citation(s) in RCA: 221] [Impact Index Per Article: 18.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2012] [Revised: 08/13/2012] [Accepted: 08/14/2012] [Indexed: 11/26/2022]
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Blatnik JA, Krpata DM, Jacobs MR, Gao Y, Novitsky YW, Rosen MJ. In vivo analysis of the morphologic characteristics of synthetic mesh to resist MRSA adherence. J Gastrointest Surg 2012; 16:2139-44. [PMID: 22907777 DOI: 10.1007/s11605-012-1992-5] [Citation(s) in RCA: 57] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/23/2012] [Accepted: 08/06/2012] [Indexed: 01/31/2023]
Abstract
BACKGROUND Synthetic mesh has significantly reduced recurrence rates for ventral hernia repair; however, prosthetic mesh infections remain a significant complication. We hypothesized that unique mesh constructs might alter the ability of various synthetic meshes to clear bacterial contamination. To evaluate this, we studied commercially available synthetic meshes ability to clear a bacterial contamination with methicillin resistant Staphylococcus aureus infection. METHODS Two hundred and eighty-three rats underwent hernia repair with one of nine synthetic materials. Control animals were closed, and the remainder was inoculated with either 10(4) or 10(6) methicillin-resistant S. aureus (MRSA). Animals were survived for 30 days without systemic antibiotics. At necropsy, the mesh was harvested and quantitative cultures and bacterial clearance assessed. RESULTS All clean repairs remained sterile. Rates of bacterial clearance for 10(4) repairs revealed that unprotected monofilament materials cleared significantly more bacteria than composite meshes and multifilament meshes (p = <0.01 and p = 0.01, respectively). At higher levels of bacterial contamination (10(6)), all materials had a reduction in bacterial clearance, although monofilament materials had higher bacterial clearance compared to composite meshes (p = 0.03). CONCLUSIONS Monofilament unprotected polypropylene and polyester mesh can clear a large percentage of MRSA contaminants. Multifilament, composite anti-adhesive barrier meshes, and laminar antimicrobial impregnated mesh are not able to clear bacterial contamination with MRSA. Unique properties of synthetic material should be considered when evaluating a prosthetic for high-risk incisional hernia repair.
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Affiliation(s)
- Jeffrey A Blatnik
- Case Comprehensive Hernia Center, Department of Surgery, University Hospitals Case Medical Center, 11100 Euclid Avenue, Cleveland, OH 44106-5047, USA
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Pauli EM, Schomisch SJ, Blatnik JA, Krpata DM, Sanabria JS, Marks JM. A novel over-the-scope deployment method for enteral stent placement. Surg Endosc 2012; 27:1410-1. [PMID: 23052538 DOI: 10.1007/s00464-012-2564-1] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2012] [Accepted: 08/14/2012] [Indexed: 12/14/2022]
Abstract
BACKGROUND Over the last two decades, self-expanding enteral stents have gained popularity and shown therapeutic potential for strictures, obstructions, fistulae, and perforations of the gastrointestinal (GI) tract. Currently available stent delivery systems make deployment in many locations in the GI tract difficult due to the inability to traverse curves or impossible due to the size requirements of the deployment systems. METHODS A 67-year-old male presented to our hospital with severe gallstone pancreatitis, requiring a prolonged intensive care unit course. Two days after discharge to a rehabilitation facility he developed acute abdominal pain and pneumoperitoneum. Operative exploration failed to identify a perforation. Subsequently, a left-upper-quadrant abscess developed that was drained percutaneously, yielding coliform bacteria. The drain produced several hundred milliliters of stool a day. A barium enema demonstrated a perforation in the descending colon from an old colo-colic anastomosis site. We proposed a novel over-the-scope (OTS) stent deployment method. Utilizing a heat-activated polymer sheath, the stent was affixed to the endoscope. A modified speed-banding attachment was created to permit release of the polymer sheath once endoscopic and fluoroscopic confirmation of the correct position was obtained. RESULTS Utilizing this method of OTS stent deployment, a fully covered 23 × 155 mm self-expanding metal stent (WallFlex, Boston Scientific, Natick, MA) was placed in the colon. Endoscopic and fluoroscopic evaluation following stent placement confirmed stent coverage of the perforation with no ongoing evidence of leak. The patient was discharged to his home state 2 weeks after stent placement in stable condition. CONCLUSION We have developed a novel method of OTS stent placement that permits deployment of a variety of enteral stents on any available endoscope. This method permits placement of fully covered stents in locations in the GI tract not reachable with currently available delivery systems.
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Affiliation(s)
- Eric M Pauli
- Department of Surgery, University Hospitals Case Medical Center, 11100 Euclid Ave., Mail Stop LKS 5047, Cleveland, OH 44106, USA.
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Blatnik JA, Harth KC, Krpata DM, Kelly KB, Schomisch SJ, Ponsky TA. Stitch Versus Scar—Evaluation of Laparoscopic Pediatric Inguinal Hernia Repair: A Pilot Study in a Rabbit Model. J Laparoendosc Adv Surg Tech A 2012; 22:848-51. [DOI: 10.1089/lap.2012.0137] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
- Jeffrey A. Blatnik
- Division of Pediatric Surgery, Department of Surgery, Rainbow Babies & Children's Hospital, University Hospitals Case Medical Center, Cleveland, Ohio
| | - Karem C. Harth
- Division of Pediatric Surgery, Department of Surgery, Rainbow Babies & Children's Hospital, University Hospitals Case Medical Center, Cleveland, Ohio
| | - David M. Krpata
- Division of Pediatric Surgery, Department of Surgery, Rainbow Babies & Children's Hospital, University Hospitals Case Medical Center, Cleveland, Ohio
| | - Katherine B. Kelly
- Division of Pediatric Surgery, Department of Surgery, Rainbow Babies & Children's Hospital, University Hospitals Case Medical Center, Cleveland, Ohio
| | - Steven J. Schomisch
- Division of Pediatric Surgery, Department of Surgery, Rainbow Babies & Children's Hospital, University Hospitals Case Medical Center, Cleveland, Ohio
| | - Todd A. Ponsky
- Division of Pediatric Surgery, Akron Children's Hospital, Akron, Ohio
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Krpata DM, Schmotzer BJ, Flocke S, Jin J, Blatnik JA, Ermlich B, Novitsky YW, Rosen MJ. Design and initial implementation of HerQLes: a hernia-related quality-of-life survey to assess abdominal wall function. J Am Coll Surg 2012; 215:635-42. [PMID: 22867715 DOI: 10.1016/j.jamcollsurg.2012.06.412] [Citation(s) in RCA: 171] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2012] [Revised: 06/23/2012] [Accepted: 06/25/2012] [Indexed: 12/17/2022]
Abstract
BACKGROUND Success of a surgical intervention is often measured by hard clinical outcomes. In ventral hernia repair (VHR) these include wound morbidity and hernia recurrence. These outcomes fail to account for a surgical intervention's effect on a patient's quality of life (QofL). Our objective was to design a hernia-specific QofL instrument with a focus on abdominal wall function, evaluate its measurement properties, and assess the impact of VHR on QofL using this new instrument. STUDY DESIGN A 16-question QofL survey tool, HerQLes, was constructed. Patients presenting for elective VHR completed the survey. Rasch modeling was used to evaluate the items; fit statistics, person-item mapping, separation index, and reliability were examined. Associations between baseline characteristics and QofL were assessed. RESULTS Eighty-eight patients completed the survey before assessment for VHR. Mean age was 57.2 years (±12.4 years), mean American Society of Anesthesiologists score was 2.8 (±0.5), and mean body mass index was 34.9 kg/m(2) (±9.3 kg/m(2)). Based on Rasch modeling, 12 of 16 items met model fit criteria. The 4 poorly fitting items were eliminated from further analysis. The 12 items retained have good internal consistency reliability (0.86). On a 0- to 100-point scale, mean QofL score was 47.2 (±15.6). Patients with higher grade hernias had lower HerQLes scores (p = 0.06). Patients showed significant improvement in abdominal wall function and QofL 6 months after VHR (p < 0.01). CONCLUSIONS Quality-of-life is an important component of surgical management of ventral hernias. The 12-question QofL survey, HerQLes, is reliable and valid. At baseline, patients with more complex hernias tended to have a decreased abdominal wall function and QofL. Six months after surgical repair, HerQLes scores change in the predicted direction. We believe HerQLes is potentially a valuable tool to assess patient-centered abdominal wall functional improvements after VHR.
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Affiliation(s)
- David M Krpata
- Case Comprehensive Hernia Center, University Hospitals Case Medical Center, Cleveland, OH 44106, USA.
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Krpata DM, Blatnik JA, Novitsky YW, Rosen MJ. Posterior and open anterior components separations: a comparative analysis. Am J Surg 2012; 203:318-22; discussion 322. [DOI: 10.1016/j.amjsurg.2011.10.009] [Citation(s) in RCA: 102] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2011] [Revised: 10/16/2011] [Accepted: 10/16/2011] [Indexed: 10/14/2022]
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Blatnik JA, Krpata DM, Novitsky YW, Rosen MJ. Does a history of wound infection predict postoperative surgical site infection after ventral hernia repair? Am J Surg 2012; 203:370-4; discussion 374. [DOI: 10.1016/j.amjsurg.2011.12.001] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2011] [Revised: 12/04/2011] [Accepted: 12/04/2011] [Indexed: 10/28/2022]
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Blatnik JA, Krpata DM, Jacobs MR, Novitsky YW, Rosen MJ. Can synthetic mesh tolerate bacterial contamination? An experimental study. J Am Coll Surg 2011. [DOI: 10.1016/j.jamcollsurg.2011.06.032] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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Krpata DM, Blatnik JA, Harth KC, Phillips MS, Novitsky YW, Rosen MJ. Evaluation of fibrin glue for biologic mesh placement at the hiatus in a porcine model. J Am Coll Surg 2011. [DOI: 10.1016/j.jamcollsurg.2011.06.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Harth KC, Blatnik JA, Rosen MJ. Optimum repair for massive ventral hernias in the morbidly obese patient—is panniculectomy helpful? Am J Surg 2011; 201:396-400; discussion 400. [DOI: 10.1016/j.amjsurg.2010.08.023] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2010] [Revised: 08/17/2010] [Accepted: 08/17/2010] [Indexed: 10/18/2022]
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Harth KC, Broome AM, Jacobs MR, Blatnik JA, Zeinali F, Bajaksouzian S, Rosen MJ. Bacterial clearance of biologic grafts used in hernia repair: an experimental study. Surg Endosc 2011; 25:2224-9. [PMID: 21298542 DOI: 10.1007/s00464-010-1534-8] [Citation(s) in RCA: 80] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2010] [Accepted: 10/05/2010] [Indexed: 11/24/2022]
Abstract
BACKGROUND Biologic grafts used in ventral hernia repair are derived from various sources and undergo different post-tissue-harvesting processing, handling, and sterilization techniques. It is unclear how these various characteristics impact graft response in the setting of contamination. We evaluated four materials in an infected hernia repair animal model using fluorescence imaging and quantitative culture studies. METHODS One hundred seven rats underwent creation of a chronic hernia. They were then repaired with one synthetic polyester control material (n = 12) and four different biologic grafts (n = 24 per material). Biologic grafts evaluated included Surgisis (porcine small intestinal submucosa), Permacol (crosslinked porcine dermis), Xenmatrix (noncrosslinked porcine dermis), and Strattice (noncrosslinked porcine dermis). Half of the repairs in each group were inoculated with Staphylococcus aureus at 10(4) CFU/ml and survived for 30 days without systemic antibiotics. Animals then underwent fluorescence imaging and quantitative bacterial studies. RESULTS All clean repairs remained sterile. Rates of bacterial clearance were as follows: polyester synthetic 0%, Surgisis 58%, Permacol 67%, Xenmatrix 75%, and Strattice 92% (P=0.003). Quantitative bacterial counts had a similar trend in bacterial clearance: polyester synthetic 1×10(6) CFU/g, Surgisis 4.3×10(5) CFU/g, Permacol 1.7×10(3) CFU/g, Xenmatrix 46 CFU/g, and Strattice 31 CFU/g (P=0.001). Fluorescence imaging was unable to detect low bacterial fluorescence counts observed on bacterial studies. CONCLUSION Biologic grafts, in comparison to synthetic material, are able to clear a Staphylococcus aureus contamination; however, they are able to do so at different rates. Bacterial clearance correlated to the level of residual bacterial burden observed in our study. Post-tissue-harvesting processing, handling, and sterilization techniques may contribute to this observed difference in ability to clear bacteria.
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Affiliation(s)
- K C Harth
- Department of Surgery, University Hospitals Case Medical Center, and Department of Biomedical Engineering, Case Western Reserve School of Medicine, 11100 Euclid Avenue, Cleveland, OH 44106-5047, USA
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Blatnik JA, Pesa NL, Harth KC, Rowbottom JR, Rosen MJ. Predicting respiratory complications following abdominal wall reconstruction. J Am Coll Surg 2010. [DOI: 10.1016/j.jamcollsurg.2010.06.040] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Abstract
The field of pediatric surgery has undergone numerous changes throughout the past few years. When laparoscopic surgery was introduced, pediatric surgeons were reluctant to change their practice because many of the instruments were not appropriate for their tiny patients. Shortly thereafter, the development of pediatric laparoscopic surgery was followed quickly by advanced pediatric laparoscopy, which has allowed pediatric surgeons to repair esophageal atresia and pyloric stenosis through the smallest of incisions. The future direction of minimally invasive pediatric surgery involves single-incision laparoscopic surgery, natural orifice transluminal endoscopic surgery, and robotic surgery. This article reviews the recent advances in minimally invasive pediatric surgery, and the direction we foresee for the field.
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Affiliation(s)
- Jeffrey A Blatnik
- Department of General Surgery, Division of Pediatric Surgery, University Hospitals Case Medical Center, 11100 Euclid Avenue, Cleveland, OH, 44106-5047, USA
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