Publications by authors named "Catherine Calvert"

Introduction: Abdominal organ transplant is a life-saving treatment. However, the resultant weakening of abdominal muscles leaves patients susceptible to incisional hernia. Obesity, smoking, and diabetes mellitus are common risk factors for post-transplant hernia.

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Facial rejuvenation is a rapidly advancing field in aesthetic medicine. Minimally invasive techniques represent a powerful tool for rejuvenation, and fillers are a popular modality with which to restore and optimize facial proportions. Currently, our filler armamentarium is characterized by products with an increasing variety of biochemical compositions warranting tailored injection approaches.

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The features of work-related burn (WRB) injuries are not well defined in the literature and they vary depending on geographical location. We wanted to describe these characteristics among patients treated in the UNC Burn Center to evaluate the potential impact of commonly accepted prevention efforts. Adults of working age, admitted between January 1, 2013, and December 31, 2018, were identified using our Burn Center Registry.

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Unlabelled: Female genital mutilation (FGM) is a growing problem in the United States, with the past few decades showing a dramatic increase in prevalence. This study aims to understand the plastic surgeon experience with FGM and inform preparedness for this rising problem.

Methods: A 26-question survey was developed and electronically distributed to a random cohort of 2,508 active American Society of Plastic Surgeons members.

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Background: Various surgical techniques exist for lower extremity reconstruction, but limited high-quality data exist to inform treatment strategies. Using multi-institutional data and rigorous matching, the authors evaluated the effectiveness and cost of three common surgical reconstructive modalities.

Methods: All adult subjects with lower extremity wounds who received bilayer wound matrix, local tissue rearrangement, or free flap reconstruction were retrospectively reviewed (from 2010 to 2017).

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Metabolic health depends on the capacity of adipose tissue progenitor cells to undergo de novo adipogenesis. The cellular hierarchy and mechanisms governing adipocyte progenitor differentiation are incompletely understood. Through single-cell RNA sequence analyses, we show that the lineage hierarchy of adipocyte progenitors consists of distinct mesenchymal cell types that are present in both mouse and human adipose tissues.

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Background: The efficacy of adipose-derived stem cells (ASCs) to improve wound healing has been extensively investigated. Unfortunately, no consistent reports have described significant improvements in healing time or outcomes in large-scale clinical trials utilizing human ASCs. Primarily, these studies examined undifferentiated ASCs as opposed to specific cells differentiated from ASCs.

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The Burn Rehabilitation Therapist Competency Tool (BRTCT) was developed in 2011 to define core knowledge and skill sets that are central to the job performance of occupational and physical therapists working with burn patients during acute hospitalization and initial rehabilitation. It was the first national effort to provide standards that burn centers could use for the training and evaluation of a BRT performance. The American Burn Association Rehabilitation Committee recently expanded the tool to include long-term rehabilitation and outpatient care in order to more fully represent all of the stages of care in which patients with burn injury receive therapy.

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Importance: Patient-reported outcomes serving as benchmarks for recovery of pediatric burn survivors are lacking, and new approaches using longitudinal cohorts for monitoring their expected recovery based on statistical models are needed for patient management during the early years following the burn.

Objective: To describe multidimensional patient-reported outcomes among pediatric burn survivors younger than 5 years to establish benchmarks using recovery curve methods.

Design, Setting, And Participants: Prospective cohort study of pediatric burn survivors younger than 5 years at 12 burn centers.

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Introduction: Hypertrophic burn scars produce significant morbidity, including itching, pain, stiffness, and contracture. Best practices for management continue to evolve. Lasers have recently been added to treatment algorithms, but indications and efficacy have not been fully defined.

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Introduction: Generalized neuropathy after burn injury is quite common, but the diagnosis and management of peripheral nerve compression, late after injury, can be difficult. Although the release of upper extremity nerves has been reported, the indications, timing, and outcomes of lower extremity nerve decompression, after burn injury, are not known.

Methods: We performed a descriptive, retrospective, 10-year review of elective peripheral nerve decompression in 107 burn patients, at a regional burn center.

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Background/purpose: The purpose of this study was to examine the impact on the family of immediate appendectomy compared with initial nonoperative management for perforated appendicitis in children.

Methods: Sixty-six prospectively identified families of children with perforated appendicitis completed a daily activity journal and the Impact on Family Scale at presentation and at completion of therapy.

Results: There were no significant differences in postoperative surgical site infections or number of missed school or employment days between the immediate appendectomy group (n = 40) and the initial nonoperative management group (n = 26).

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Restoration of form and function after burn injury remains challenging, but emerging laser and pulsed light technologies now offer hope for patients with hypertrophic scars, which may be associated with persistent hyperemia, chronic folliculitis, intense pruritis, and neuropathic pain. In addition to impairing body image, these scars may limit functional recovery, compromise activities of daily living, and prevent return to work. Three different platforms are now poised to alter our reconstructive algorithm: (1) vascular-specific pulsed dye laser (PDL) to reduce hyperemia, (2) ablative fractional CO(2) laser to improve texture and pliability of the burn scar, and (3) intense pulsed light (IPL) to correct burn scar dyschromia and alleviate chronic folliculitis.

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Background/purpose: We compared direct hospital costs and indirect costs to the family associated with immediate appendectomy or initial nonoperative management for perforated appendicitis in children.

Methods: From June 2009 through May 2010, 61 prospectively identified families completed a cost diary, documenting the numbers of missed school days for the child and missed employment days for the adult caregiver(s) over the treatment course. Hospital costs were obtained from hospital financial databases.

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Purpose: Concerns abound regarding the radiation dose administered to children during trauma evaluations. It is important to minimize the radiation dose administered when a computed tomographic (CT) scan is performed. This study was carried out to determine the radiation dose delivered during trauma abdominal/pelvic CT scans performed in community hospitals.

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Background: Children with intestinal failure (IF) are at risk for small bowel bacterial overgrowth (SBBO) because of anatomical and other factors. We sought to identify risk factors for SBBO confirmed by quantitative duodenal culture.

Methods: A single-center retrospective record review of children who had undergone endoscopic evaluation for SBBO (defined as bacterial growth in duodenal fluid of >10(5) colony-forming unit per mL) was performed.

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Purpose: This study was aimed at examining an airway construct engineered from autologous amniotic mesenchymal stem cells (aMSCs) and a xenologous decellularized airway scaffold as a means for tracheal repair.

Methods: Fetal lambs (N = 13) with a tracheal defect were divided into 2 groups. One group (acellular, n = 6) was repaired with a decellularized leporine tracheal segment.

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The National Institute for Occupational Safety and Health (NIOSH) research on direct-reading instruments (DRIs) needed an instantaneous sampling method to provide independent confirmation of the concentrations of chemical warfare agent (CWA) simulants. It was determined that evacuated canisters would be the method of choice. There is no method specifically validated for volatile organic compounds (VOCs) in the NIOSH Manual of Analytical Methods.

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Hot-press hand injuries create significant challenges, in terms of acute coverage and restoration of function, and long-term outcomes are largely unknown. This article reviews the comprehensive management of hot-press hand injuries--which includes damage control procedures, resurfacing, reconstruction, and rehabilitation--and assesses outcomes such as return to work and final impairment ratings. We treated 56 patients with hot-press hand injuries, at a verified, accredited burn center in the Southeast between 1994 and 2008.

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Purpose: Due to advances in resuscitation of patients with electrical injuries, new challenges in reconstruction and rehabilitation have emerged. This study is a comprehensive institutional review of a prospectively gathered database of patients with electrical injuries, from initial resuscitation through final impairment ratings.

Methods: A trauma registry was used to identify patients with electrical injuries.

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Respiratory protection is offered to American workers in a variety of ways to guard against potential inhalation hazards. Two of the most common ways are elastomeric N95 respirators and N95 filtering-facepiece respirators. Some in the health care industry feel that surgical masks provide an acceptable level of protection in certain situations against particular hazards.

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Introduction: Significant hand burns frequently result in dorsal neosyndactyly, despite appropriate wound care, excision/grafting, and occupational therapy. Patients often develop limited abduction, tethered flexion/extension, intrinsic tightness, and inversion of the web space. We present a new technique for neosyndactyly release: the STARplasty (Syndactyly Treatment After Release), named after the appearance of the reconstructed web.

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Four performance measures were used to evaluate the fitting characteristics of 18 models of N95 filtering-facepiece respirators: (1) the 5th percentile simulated workplace protection factor (SWPF) value, (2) the shift average SWPF value, (3) the h-value, and (4) the assignment error. The effect of fit-testing on the level of protection provided by the respirators was also evaluated. The respirators were tested on a panel of 25 subjects with various face sizes.

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The 12-member American Burn Association/Shriners Hospitals for Children Outcomes Task Force was charged with developing a health outcomes questionnaire for use in children 5 years of age and younger that was clinically based and valid. A 55-item form was tested using a cross-sectional design on the basis of a range of 184 infants and children between 0 and 5 years of age at 8 burn centers, nationally. A total of 131 subjects completed a follow-up health outcomes questionnaire 6 months after the baseline assessment.

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