Plastic and Reconstructive Surgery Resident Indigent Care Clinic Optimization by Improving "No-Show" Rates.

ABSTRACT: Absenteeism among clinical patients is a significant source of inefficiency in the modern American health care system. Routine absenteeism limits access to care for indigent patients, thus providing additional strain on the health care system and timely administration of care.This quality improvement project set out to quantify, understand, and potentially reduce patient absenteeism in our weekly plastic and reconstructive surgery resident indigent care clinic. One year prior to our study was retrospectively reviewed to determine a baseline rate of absenteeism (no shows). The daily and monthly no-show percentages were calculated. Then, three consecutive 2-month Plan, Do, Study, Act (PDSA) cycles were performed and data were recorded.The initial year analysis demonstrated an average no-show rate of 25%. The first PDSA cycle attempted to ascertain factors contributing to absenteeism and to get patients rescheduled. The rate of clinical absenteeism was 27% over this period compared with a rate of 18% in the control period. During this period, we discovered a limitation of our institution's electronic medical record (EMR). Rescheduled patients were removed from the original schedule and were not counted as a missed appointment even though the opportunity for care was missed. The second PDSA cycle attempted to collect raw data while trying to understand the EMR error and rescheduling process. During this period, there was a 33% no-show rate compared with 27% in the control period. The third PDSA cycle attempted again to establish factors contributing to clinical absenteeism with a better understanding of the limitations of our EMR. A 33% no-show rate during this cycle was recorded compared with 22% in the control period. After three PDSA cycles were completed, our clinic had an average no-show rate of 31% compared with 25% during the same months in the previous year.This project brought to realization that our data were initially skewed by our ignorance of an EMR flaw that did not track patients who either canceled or rescheduled their appointments. We also learned that there is a certain subset of patients who are not able to be contacted and who do not follow up.

A Simplified Abdominal Wall Model to Teach Complex Abdominal Wall Reconstruction.

A simplified and functional abdominal wall model is necessary for surgical education. The utility of such a model encompasses medical student, resident, and fellow education. This is especially relevant in the fields of general surgery and plastic surgery. An abdominal wall model helps with a more complete understanding of abdomen access, hernia repair, and complex abdominal wall reconstruction. Although several models have been proposed, they are expensive and limitations exist due to access, costly repairs, maintenance, and part replacements. There is currently no consensus or widely adopted model used in surgical training programs. We present a simplified abdominal wall model that is inexpensive and easily reproducible.

Evaluation of Absorbable Mesh for Prophylactic Mesh Augmentation in High-Risk Patients.

PURPOSE: Hernia prevention following abdominal surgery has become a subject of growing interest in general surgery. Prophylactic mesh augmentation (PMA) is an emerging technique to prevent incisional hernia in high-risk populations. The aim of this study was to determine the efficacy and safety of PMA using an absorbable mesh. METHODS: A retrospective review was performed on patients who underwent PMA between July 2014 and March 2020. A prophylactic synthetic absorbable mesh (Phasix™; Becton Dickinson, Franklin Lakes, NJ) was placed at the surgeon's discretion according to the indication for the primary operation. The primary outcome was the incisional hernia rate. Secondary outcomes included mesh-related or other complications. RESULTS: Fifty patients underwent PMA following cystectomy with ileal conduit, open aortic surgery, or colostomy creation/takedown. Overall, 10 patients (20%) developed hernia at a median follow-up of 2.2 years. Six of these 10 hernias occurred at incisions where mesh was not placed. There were no documented mesh infections. One mesh (2%) in the AAA group was explanted due to an infected endograft, but there was no evidence of mesh complication. Two patients (4%) developed seroma. Two (4%) patients developed superficial surgical site infections (SSI). There were no documented deep-space SSI. CONCLUSION: PMA is an emerging technique with a low rate of incisional hernia in high-risk patients, such as those undergoing stoma creation or open aortic intervention. The use of an absorbable mesh seems promising, however more and longer-term research is needed.

A preliminary evaluation of two different meshes in minimally invasive inguinal hernia surgery.

BACKGROUND: Many meshes are available for use in laparoscopic inguinal hernia repair. The surgeon must consider several factors when choosing a mesh for hernia repair including clinical outcomes, cost, and ease of use. The purpose of this study was to compare two different lightweight polypropylene meshes for laparoscopic and robotic inguinal hernia repairs. METHODS: Subjects were randomized immediately before surgery. Data were reported in N (%) and median [Q1-Q3], comparisons of mesh insertion time were tested using a 2 × 2 ANOVA on the ranked times, comparisons between categorical variables were tested with Fisher's Exact, and all data were analyzed using SAS® 9.4 (SAS Institute, Inc.). RESULTS: Between January 2015 and June 2016, 50 subjects were enrolled; two were excluded. Of 48 eligible subjects, most were Caucasian (N = 42, 88%), male (N = 37, 77%), with a median age of 63, and were randomized evenly between 3DMax™ mesh and Ultrapro® mesh. Robotic mesh placement significantly increased insertion time regardless of mesh type (p < .0001). When comparing NASA-TLX self-assessment surveys, there was no significant difference between the meshes in difficulty of placement. The type of mesh did not significantly impact the insertion time regardless of robot use (p = 0.523). CONCLUSION: Our data demonstrate that mesh insertion times comparing two different lightweight polypropylene meshes were not significantly different. Increased insertion times associated with robotic repair are likely due to the mechanics of robotic suturing and associated learning curve. Our data suggest that these meshes can be used interchangeably based on the surgeon's preference. CLINICAL TRIAL REGISTRATION NUMBER: NCT01825187.

Laparotomy Closure: A Review of Available Education Training Models.

INTRODUCTION: As studies continue to provide advanced knowledge concerning abdominal wall closure after laparotomy, there have been many improvements in surgical techniques and recommended closure materials. However, there continues to be a high rate of incisional hernias following exploratory laparotomies. The goal of this review is to provide a comprehensive assessment of available educational models for laparotomy closure. MATERIAL AND METHODS: A comprehensive literature review was made using PubMed, Cochrane, and NCBI MeSH databases to find the most relevant articles associated with various abdominal closure models using specific keywords. RESULTS: Human cadaver, animal, synthetic, and virtual reality models were reviewed. Strengths and limitations of each model were described. CONCLUSION: Each model has practical benefits in its ability to mimic in vitro anatomy and the experiential similarities to actual laparotomy closure. However, there are also limitations and potential cost-prohibitive factors for individual models. Overall, while there have been some advances in synthetic and virtual models, human cadaver and porcine models remain the most similar to human abdominal wall closures.

The Broad Application of Prepectoral Direct-to-Implant Breast Reconstruction with Acellular Dermal Matrix Drape and Fluorescent Imaging in a Community Setting.

BACKGROUND: Much has been written regarding the new paradigm of prepectoral direct-to-implant reconstruction, but patient selection continues to be unclear. Prepectoral direct-to-implant (PDTI) reconstruction with acellular dermal matrix drape and fluorescent imaging (ADFI) was offered to all patients. METHODS: The PDTI with ADFI protocol is (1) fluorescent imaging following mastectomy, (2) acellular dermal matrix prepectoral drape construction, (3) direct-to-implant placement beneath drape, and (4) repeated fluorescent imaging with implant in place. RESULTS: Patient ages ranged from 29 to 82 years, and body mass index ranged from 19 to 48 kg/m. Implant size ranged from 240 to 800 cc. Two hundred thirty breasts in 131 patients were reconstructed with the PDTI with ADFI protocol between October of 2016 and June of 2018; 32 patients underwent unilateral and 99 underwent bilateral reconstruction. Twelve breasts (5 percent) received postmastectomy radiation therapy after reconstruction. Ten patients (8 percent) had previous lumpectomy and radiation therapy, with local recurrence, and underwent completion mastectomy and PDTI reconstruction with ADFI. Fifteen patients and 22 breasts (9 percent) had subpectoral reconstructions converted to PDTI with ADFI. Ten infections (4 percent) required explantation. Eight breasts (4 percent) were reconstructed with tissue expanders because of poor vascular flow. Seven breasts (3 percent) in five patients received minor cosmetic revision. CONCLUSIONS: SPY fluorescent imaging and expanded use of acellular dermal matrices has created an environment where PDTI reconstruction can be successful in nearly all postmastectomy patients. Tissue expansion/two-stage reconstruction has evolved to a default approach when vascular supply to skin flaps is compromised. PDTI reconstruction with ADFI has resulted in zero necroses of skin flaps, patients rarely undergoing revisions, fewer office visits, and quicker return to preoperative lifestyles. CLINICAL QUESTION/LEVEL OF EVIDENCE: Therapeutic, IV.

Clinical Application of the Measurement of Abdominal Wall Tension in Hernia Repair.

Abdominal wall tension is an integral concept in hernia repair. Most of the described techniques attempt to reduce abdominal wall tension by using mesh prosthetics or myofascial release. Although the concept of a "tension-free" hernia repair is well-understood and appreciated by surgeons, quantitative information about abdominal wall tension is limited. This review evaluates the published literature related to abdominal wall tension and summarizes how the measurement of intraoperative tension can guide clinical decision-making. Most of the methods and techniques for measuring abdominal wall tension are similar and involve the use of tensiometers. However, there is no accepted standardized technique. Baseline tension measurements confirm the concept of a baseline physiological tension, and it has been observed that tension does not correlate with hernia width. When the tension is considered to be too great during hernia repair, intraoperative techniques such as myofascial release can be used to reduce tension to physiological values. Emerging data from clinical studies on tension have added to our understanding of the mechanics and physiology of the abdominal wall. Standardized devices and measurement techniques need to be developed and validated to foster the utility of tension measurements in hernia repair.

A Preliminary Assessment of Abdominal Wall Tension in Patients Undergoing Retromuscular Hernia Repair.

A common technique for ventral and incisional hernia repair is the retrorectus repair (Rives-Stoppa). The posterior rectus sheath is incised bilaterally, and mesh is placed retromuscularly. There is little information on how this component separation technique affects abdominal wall tension. We evaluated abdominal wall tension in patients undergoing retrorectus repair of abdominal wall hernias. Patients undergoing retrorectus repair of their ventral hernias were enrolled in a prospective, Institutional Review Board-approved protocol to measure abdominal wall tension from 8/1/2013 to 8/2/2017. Demographic information and operative details were documented. Abdominal wall tensions were measured using scales attached to Kocher clamps that were clamped to the fascia and brought together in the midline. Measurements were made before and after incising the posterior rectus sheaths. Data were analyzed with a repeated measures analysis of variance (ANOVA), and differences between individual groups were analyzed by least square differences. Forty-five patients had tension measurements. Average age was 58 years (range 29-81)-78% Caucasian, 51% female, an average body mass index (BMI) of 35 kg/m2 (range 20-62), and 38% recurrent hernias. The average hernia defect was 121.9 cm2, and the average mesh size was 607.8 cm2. There was a significant reduction in tension after bilateral posterior rectus sheath incision (3.1 lbs vs. 5.6 lbs, p<0.0001). In this evaluation, abdominal wall tension measurements are shown to be a feasible adjunct during open hernia repair with retrorectus repair. Transection of the posterior rectus sheath decreases tension during hernia repair and may help guide surgeons regarding when to use this procedure.

Calculating alveolar capillary conductance and pulmonary capillary blood volume: comparing the multiple- and single-inspired oxygen tension methods.

Key elements for determining alveolar-capillary membrane conductance (Dm) and pulmonary capillary blood volume (Vc) from the lung diffusing capacity (Dl) for carbon monoxide (DlCO) or for nitric oxide (DlNO) are the reaction rate of carbon monoxide with hemoglobin (thetaCO) and the DmCO/DlNO relationship (alpha-ratio). Although a range of values have been reported, currently there is no consensus regarding these parameters. The study purpose was to define optimal parameters (thetaCO, alpha-ratio) that would experimentally substantiate calculations of Dm and Vc from the single-inspired O2 tension [inspired fraction of O2 (FiO2)] method relative to the multiple-FiO2 method. Eight healthy men were studied at rest and during moderate exercise (80-W cycle). Dm and Vc were determined by the multiple-FiO2 and single-FiO2 methods (rebreathe technique) and were tabulated by applying previously reported thetaCO equations (both methods) and by varying the alpha-ratio (single-FiO2 method) from 1.90 to 2.50. Values were then compared between methods throughout the examined alpha-ratios. Dm and Vc were critically dependent on the applied thetaCO equation. For the multiple-FiO2 method, Dm was highly variable between thetaCO equations (rest and exercise); the range of Vc was less widespread. For the single-FiO2 method, the thetaCO equation by Reeves and Park (1992) combined with an alpha-ratio between 2.08 and 2.26 gave values for Dm and Vc that most closely matched those from the multiple-FiO2 method and were also physiologically plausible compared with predicted values. We conclude that the parameters used to calculate Dm and Vc values from the single-FiO2 method (using DlCO and DlNO) can significantly influence results and should be evaluated within individual laboratories to obtain optimal values.