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2.
J Craniofac Surg ; 33(1): 76-80, 2022.
Artigo em Inglês | MEDLINE | ID: mdl-34261963

RESUMO

ABSTRACT: Implicit bias can lead to discrimination of certain populations within healthcare. Representation in medical literature is no exception and it is hypothesized that images with lighter skin tone are more prevalent than darker skin tones in craniofacial literature. Clinical photographs and figure graphics from 5 journals were examined for pre-defined years. Annals of Plastic Surgery, Aesthetic Surgery Journal, Journal of Craniofacial Surgery, Journal of Plastic, Reconstructive and Aesthetic Surgery, and Plastic and Reconstructive Surgery journals were reviewed. All craniofacial-focused articles containing at least one color image depicting human skin were included. 10,477 images and 627 graphics were evaluated using the Fitzpatrick scale as a guide. Most journals trended toward broader inclusion of nonwhite photographs and graphics over time. In 2016, 47% of articles published in Journal of Craniofacial Surgery included nonwhite images compared to Annals of Plastic Surgery (16%), Aesthetic Surgery Journal (40%), Journal of Plastic, Reconstructive and Aesthetic Surgery (25%), and Plastic and Reconstructive Surgery (7%). Comparison of domestic and international publications demonstrated that author's country of origin impacted the percentage of nonwhite clinical photographs for most journals. Comparisons of publications by country demonstrated increased diversity in Asia and the Middle East for clinical photographs but not graphics. The frequency of nonwhite figure graphics was staggeringly low, identified in only 18 articles across all journals and years. Craniofacial literature more commonly reflects white skin tones. The trend over time suggests increasing inclusion of racial diversity in clinical photographs; however, figure graphics remain less racially diverse. Time, country of origin, and publishing journal appear to play a role.


Assuntos
Procedimentos de Cirurgia Plástica , Cirurgia Plástica , Viés Implícito , Humanos , Publicações , Grupos Raciais
3.
Plast Reconstr Surg Glob Open ; 9(5): e3582, 2021 May.
Artigo em Inglês | MEDLINE | ID: mdl-34036024

RESUMO

Symmetric peripheral gangrene (SPG) affects peripheral tissues of critically ill patients and can have severe disfiguring and debilitating effects. It can occur in the setting of multiple conditions, and it is associated with the use of vasopressors. There are no evidence-based treatments available for patients who develop SPG. Botulinum toxin has emerged as a potential therapy in vasospastic disorders, and we hypothesized that it may be used in the treatment of tissue ischemia in critically ill patients on vasopressors. We present a case of a patient who developed vasopressor-associated SPG and who experienced complete resolution after local injection with botulinum toxin. While the action of botulinum toxin on skeletal muscle is best understood, it has also been demonstrated to attenuate the release of multiple vasoconstrictive factors that impact vascular smooth muscle and modulate calcium and nitric oxide. These effects may result in vasodilation and improvement of cutaneous ischemia when injected locally. Clinicians may consider this local therapy in the treatment of vasopressor-associated symmetric peripheral gangrene.

4.
Aesthet Surg J ; 41(11): 1293-1302, 2021 10 15.
Artigo em Inglês | MEDLINE | ID: mdl-33569587

RESUMO

BACKGROUND: Achieving an aesthetic phalloplasty result is important for patients with acquired or congenital defects of the penis, or with genital-related dysphoria. However, aside from length and girth, the aesthetic proportions of the male penis have not been defined. OBJECTIVES: This study aimed to determine proportions of the male penis through photogrammetric analysis of nude male photographs and to verify these proportions with a crowdsourcing-based survey. METHODS: Nude male photographs (n = 283) were analyzed to define aesthetic proportions of the male penis. Photographs were analyzed for the position of the penis on the torso in relation to the umbilicus and for the ratio of the dorsal and ventral glans of the penis in relation to the entire shaft length. Proportions were then further studied by crowdsourcing 1026 respondents with Amazon mechanical Turk. RESULTS: The ideal position of the penis below the umbilicus is about 55% (6/11th) of the distance from the jugular notch to the umbilicus (measured average, 53.6%; survey-weighted average, 58.9%). The dorsal glans of the penis is about 33% (1/3rd) of the length of the entire shaft (measured average, 32.1%; survey-weighted average, 37.5%). The ventral glans of the penis is about 12.5% (1/8th) of the length of the entire shaft (measured average, 12.6%; survey-weighted average, 11.7%). CONCLUSIONS: Measured proportions of the human penis follow exact fractions. Crowdsourcing data helped support photogrammetric analysis, with survey-preferred ratios within 5% of measured ratios. With further validation, these data can aid surgeons performing phalloplasty.


Assuntos
Crowdsourcing , Estética , Humanos , Masculino , Pênis/cirurgia , Fotogrametria , Inquéritos e Questionários
6.
Ann Surg ; 273(2): 202-207, 2021 02 01.
Artigo em Inglês | MEDLINE | ID: mdl-32941269

RESUMO

OBJECTIVE: In this study, the extent of racial diversity in images of breast-related plastic surgery published literature was investigated to better understand disparities that exist in breast surgery. BACKGROUND: The lack of racial diversity in images of skin color in surgery literature can perpetuate implicit bias and stereotypes. Implicit bias can affect the way patients are evaluated, diagnosed, and treated. The visual aspects of plastic surgery make a lack of diversity in imagery especially impactful on patient care and outcomes. METHODS: Published medical images and graphics depicting human skin were analyzed across 4 major plastic surgery journals. Up to 4 years were chosen a priori to evaluate from each journal and represented the initial year of color image publication, the year of study initiation (2016), and representative years for a given decade (2000 and 2010). Images and graphics were tabulated, rated by Fitzpatrick scale and categorized into "White" or "non-White." Data were evaluated with pair-wise and linear regression statistics. RESULTS: Of the 2774 images and 353 graphics that met inclusion criteria, only 184 (8.18%) images and 9 graphics (6.34%) depicted non-White skin. Temporal analysis showed that there is an increased diversity of images published since 2010 with 0% of images being non-White before and 7.3% to 10.3% after 2010. International and multi-national authors tended to publish more non-White images. CONCLUSIONS: There is insufficient racial diversity visually represented in the breast-related plastic surgery literature with a small degree of progress made towards more equitable imagery over time. Increasing awareness of image content, and the need for equitable visual representation may allow for improved racial diversity in surgical literature.


Assuntos
Bibliometria , Diversidade Cultural , Etnicidade/estatística & dados numéricos , Mamoplastia/estatística & dados numéricos , Grupos Minoritários/estatística & dados numéricos , População Branca/estatística & dados numéricos , Feminino , Humanos , Publicações Periódicas como Assunto , Fotografação
7.
J Natl Med Assoc ; 113(1): 88-94, 2021 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-32753112

RESUMO

BACKGROUND: There has been a recent focus on the impact of race on health equity, which has revealed unsettling results. Multiple studies have shown that the underrepresentation of minorities in medical education such as course slides, pre-clinical lecture material, case studies, and textbooks impedes racial equity in the practice of medicine. AIM OF STUDY: In this study, we aimed to survey the landscape of published imaging in modern medicine to understand the degree of racial diversity represented in current biomedical literature. METHODS: We performed a photogrammetric analysis of medical images from the New England Journal of Medicine representing various medical fields and geographic regions to examine implicit biases with regards to human skin color. RESULTS: Overall, 18% of images depicted non-white skin tone but there was considerable heterogeneity in the percentage of non-white medical images published from different geographic regions and specialties (ranging from 0% to 67%). CONCLUSIONS: Unfortunately, these results suggest that there is an underlying implicit racial bias in published images from medical literature with an underrepresentation of minorities compared to the general population, which could also contribute to inequities in health care. It is critical that health care providers, educators, and trainees promote cultural competency and work to understand the multifaceted influence of race and culture on the daily experience of patients in the modern healthcare system. We hope this study will encourage authors to critically evaluate their medical images for implicit bias so that documented photography in scientific literature may better reflect the populations we serve.


Assuntos
Educação Médica , Grupos Minoritários , Competência Cultural , Pessoal de Saúde , Humanos , Preconceito
9.
Plast Reconstr Surg ; 145(6): 1499-1509, 2020 06.
Artigo em Inglês | MEDLINE | ID: mdl-32459779

RESUMO

BACKGROUND: No data exist on the prospective outcomes of facial feminization surgery. This study set out to determine the effects of facial feminization surgery on quality-of-life outcomes for gender-diverse patients. METHODS: A prospective, international, multicenter, cohort study with adult gender-diverse patients with gender dysphoria was undertaken. Facial feminization outcome score was calculated preoperatively and postoperatively (1-week to 1-month and >6 months). Photogrammetric cephalometries were measured at the same time points. Self-perceived preoperative masculinity and femininity were recorded. Externally rated gender appearance (scale of 1 to 5, with 1 being most feminine) and general aesthetics (scale of 1 to 10, with 10 being very good) for 10 facial feminization surgery patients were compared with those of five cisgender controls. Univariate linear regression analyses were used to predict outcomes from facial feminization surgery. RESULTS: Sixty-six consecutive patients were enrolled. Patients noted that their brows, jaws, and chins were the most masculine aspects of their faces (54.5 percent, 33.3 percent, and 30.3 percent, respectively). Median facial feminization outcome score increased from 47.2 preoperatively to 80.6 at 6 months or more postoperatively (p < 0.0001). Mean satisfaction was excellent (3.0 at both 1-month and ≥6-month follow-up; p = 0.46). Cephalometric values were significantly more feminine after surgery. Gender appearance was feminine to very feminine (1.83 ± 0.96) and general aesthetics were good (6.09 ± 2.01) but different from those of cisgender women controls (1.25 ± 0.49 and 7.63 ± 1.82, respectively; p < 0.001 for each). CONCLUSION: Facial feminization achieved improved quality of life, feminized cephalometries, feminine gender appearance, good overall aesthetics, and high satisfaction that were present at 1 month and stable at more than 6 months. CLINICAL QUESTION/LEVEL OF EVIDENCE: Therapeutic, IV.


Assuntos
Face/cirurgia , Disforia de Gênero/cirurgia , Satisfação do Paciente , Qualidade de Vida , Cirurgia de Readequação Sexual/métodos , Adulto , Feminino , Feminilidade , Disforia de Gênero/psicologia , Humanos , Masculino , Pessoa de Meia-Idade , Período Pós-Operatório , Estudos Prospectivos , Autoimagem , Pessoas Transgênero/psicologia
11.
Plast Reconstr Surg ; 144(6): 1451-1461, 2019 12.
Artigo em Inglês | MEDLINE | ID: mdl-31764668

RESUMO

BACKGROUND: Penile inversion vaginoplasty is the most common gender-affirming procedure for transfeminine patients. Patients undergoing this procedure may require revision labiaplasty and clitoroplasty. This study describes complications and outcomes from the largest reported cohort in the United States to undergo penile inversion vaginoplasty with subsequent revision labiaplasty and/or clitoroplasty. METHODS: A retrospective chart review was performed of a single surgeon's experience with penile inversion vaginoplasty with or without revision labiaplasty and/or clitoroplasty between July of 2014 and June of 2016 in a cohort of gender-diverse patients assigned male at birth. Patient demographic data, complications, and quality of life data were collected. Univariate and multivariate comparisons were completed. RESULTS: A total of 117 patients underwent penile inversion vaginoplasty. Of these, 28 patients (23.9 percent) underwent revision labiaplasty and/or clitoroplasty, with nine patients (7.7 percent) undergoing both procedures. Patients who underwent penile inversion vaginoplasty necessitating revision were significantly more likely to have granulation tissue (p = 0.006), intravaginal scarring (p < 0.001), and complete vaginal stenosis (p = 0.008). The majority of patients who underwent revision labiaplasty and/or clitoroplasty reported satisfaction with their final surgical outcome (82.4 percent) and resolution of their genital-related dysphoria (76.5 percent). CONCLUSIONS: Patients who developed minor postoperative complications following penile inversion vaginoplasty were more likely to require revision surgery to address functional and aesthetic concerns. Patients responded with high levels of satisfaction following revision procedures, with the majority of patients reporting resolution of genital-related dysphoria. Transfeminine patients who undergo penile inversion vaginoplasty should be counseled on the possibility of revisions during their postoperative course. CLINICAL QUESTION/LEVEL OF EVIDENCE: Therapeutic, III.


Assuntos
Pênis/cirurgia , Cirurgia de Readequação Sexual/métodos , Transexualidade/cirurgia , Vagina/cirurgia , Vulva/cirurgia , Adolescente , Adulto , Idoso , Clitóris/cirurgia , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Satisfação do Paciente , Complicações Pós-Operatórias/etiologia , Qualidade de Vida , Estudos Retrospectivos , Cirurgia de Readequação Sexual/psicologia , Transexualidade/psicologia , Adulto Jovem
13.
J Craniofac Surg ; 30(5): 1368-1375, 2019 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-31299724

RESUMO

OBJECTIVE: Nonsurgical and surgical options are available for transgender vocal feminization. This systematic review explores the efficacy of feminizing voice therapy and phonosurgery. METHODS: A systematic review was performed using PubMed, Cinahl Plus, Ovid SP, Web of Science, Science Direct, and Google Scholar with terms related to transgender phonosurgery and voice therapy. Included studies were outcomes-based vocal feminization interventions for transgender women. Data were collected on pre- and postintervention fundamental frequency (F0), externally measured vocal femininity, patient satisfaction, and complications. RESULTS: Two hundred twelve studies were identified and 20 met inclusion criteria. Postintervention patient satisfaction was approximately 80% to 85% for voice therapy, endoscopic shortening, and cricothyroid approximation. Complications were reported for each phonosurgery technique, most commonly decreased mean phonation time and loudness. Of the 20 studies, 17 were used for meta-analysis of F0 change. F0 increased by 31 Hz with voice therapy alone, 26 Hz with laser reduction glottoplasty, 39 Hz with cricothyroid approximation, and 72 Hz with endoscopic shortening. CONCLUSION: The literature supports both voice therapy and phonosurgery, depending on a patient's magnitude of desired pitch change and tolerance for cost and potential complications. Most will likely benefit from voice therapy, as it is highly satisfactory, raises vocal pitch, and is noninvasive. However, endoscopic shortening is also highly satisfactory and provides the greatest absolute increase in vocal pitch. If surgery is chosen, postoperative voice therapy may additionally increase F0, stabilize the voice, and create a more female timbre. However, further studies will be necessary to provide definitive clinical recommendations.


Assuntos
Feminização , Qualidade da Voz , Feminino , Humanos , Masculino , Satisfação do Paciente , Pessoas Transgênero , Prega Vocal , Voz
14.
BMJ Case Rep ; 12(3)2019 Mar 09.
Artigo em Inglês | MEDLINE | ID: mdl-30852514

RESUMO

Schistosomiasis is infrequently seen in the UK, but remains an important cause of haematuria in endemic areas. It may also be complicated by systemic illness, and can affect multiple organs, including the bladder, liver and lungs. We discuss a case of haematuria associated with lower abdominal discomfort and dry cough/wheeze in a returning traveller diagnosed as pulmonary and urinary schistosomiasis, caused by Schistosomahaematobium This case was particularly notable for the radiological findings seen on CT scan of the chest (figure 2A,B), as well as the characteristic sago nodules discovered within the bladder. It is also unusual to see pulmonary schistosomiasis associated with S. haematobium, an organism more typically characterised by bladder involvement. It is important to consider schistosomiasis and its complications, while rare in the western world, it remains an important differential diagnosis in at-risk groups with considerable morbidity if untreated.


Assuntos
Hematúria/diagnóstico , Pneumopatias/parasitologia , Schistosoma haematobium/isolamento & purificação , Esquistossomose Urinária/patologia , Neoplasias da Bexiga Urinária/patologia , Adulto , Animais , Anti-Helmínticos/uso terapêutico , Cistoscopia/métodos , Diagnóstico Diferencial , Hematúria/diagnóstico por imagem , Humanos , Pneumopatias/diagnóstico por imagem , Masculino , Praziquantel/administração & dosagem , Praziquantel/uso terapêutico , Esquistossomose/complicações , Esquistossomose/tratamento farmacológico , Esquistossomose/patologia , Esquistossomose Urinária/diagnóstico , Esquistossomose Urinária/tratamento farmacológico , Tomografia Computadorizada por Raios X/métodos , Resultado do Tratamento , Neoplasias da Bexiga Urinária/parasitologia , Neoplasias da Bexiga Urinária/cirurgia
16.
Plast Reconstr Surg Glob Open ; 7(12): e2563, 2019 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-32042543

RESUMO

BACKGROUND: Racial disparities exist in the accessibility, delivery, and quality of healthcare. Clinical images are central to plastic surgery, but choice of images in the literature is susceptible to implicit biases. The objective of this study was to determine if published images reflect the racial demographic of patients. METHODS: A search for color photographs and rendered graphics depicting human skin was completed in 6 plastic surgery journals and the New England Journal of Medicine Images in Clinical Medicine for each decade between 1992 and 2017. For each article, images were categorized as white or nonwhite based on Fitzpatrick Scale (1-3 versus 4-6). Additionally, the authors' geographic region was documented. Proportional data and average number of nonwhite images per article were compared. Regression analyses were performed to assess the correlation of time and geographic region on nonwhite images. RESULTS: In total, 24,209 color photographs and 1,671 color graphics were analyzed. In plastic surgery journals, 22% of photographs were nonwhite and the average number of photographs per article with white skin was 5.4 compared with 1.6 with nonwhite skin (P < 0.0001). There was a significant increase in nonwhite photographs over time (r = 0.086, P < 0.001) and association of nonwhite photographs with international authors (r = 0.12, P < 0.001). CONCLUSIONS: Roughly 60%-70% of the world population and 30% of US cosmetic patients are nonwhite. Images in plastic surgery literature reflect neither racial demographics by global region nor the patient population seeking surgery. To advance equitable care, images should better represent the racial composition of the populations served.

17.
JPRAS Open ; 21: 63-74, 2019 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-32158888

RESUMO

INTRODUCTION: Gender-affirmation surgery is essential in the management of gender dysphoria. For male-to-female transgender women (transwomen), feminization of the chest is a component in this process. There is minimal literature describing effective and safe techniques for breast augmentation in transwomen. Here we describe our operative techniques and considerations. METHODS: A retrospective review of a single surgeon experience was performed for transwomen who underwent primary breast augmentation between October 1, 2014, and February 1, 2017. Surgical outcomes and complications were analyzed. RESULTS: Thirty-four patients with an average age of 34.4 years were included in this series (range 19-59 years). Surgical approach was through an inframammary incision with a submuscular pocket and either silicone smooth round (24%) or textured anatomic implants (76%). Six patients experienced postoperative complications (17.6%). Two patients underwent reoperation for implant extrusion (5.9%). Higher BMI and longer preoperative hormonal therapy duration were significantly associated with complications (p = 0.008; p = 0.039, respectively). Feedback from the respondents was overall positive. Most of patients (92.7%) reported being happier and feeling more satisfied with their chest than before their operation. All respondents (100%) reported improvement in their gender dysphoria and would undergo the operation again. Patient dissatisfaction was significantly associated with longer time on preoperative hormones (p = 0.008) and had a trend toward association with higher implant volume (p = 0.083). CONCLUSIONS: Breast augmentation in transwomen is safe and typically leads to high patient satisfaction with improvement of gender dysphoria. Larger, longer term studies are needed to appropriately delineate complication risks and contributing factors.

18.
J Reconstr Microsurg ; 35(2): 129-137, 2019 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-30078177

RESUMO

INTRODUCTION: Phalloplasty attempts to achieve a functional and aesthetic phallus. Sensation is a key component for sexual pleasure. Sensation is also important for protection in the setting of penile implant insertion. Little data are available on genital sensibility outcomes after phalloplasty, and there are no standardized approaches for assessment of either sensibility or erogenous perception. METHODS: A literature search of PubMed, Google Scholar, and MEDLINE databases was conducted with terms related to genital sensibility after phalloplasty. Data on patient demographics, nerves used for coaptation, and measurements of genital sensibility were collected. Pooled event rates were determined for recovered glans sensibility and recovered erogenous sensation using a Freeman-Tukey arcsine transformation. RESULTS: A total of 341 articles were identified of which 26 met the inclusion criteria for final analysis. The dorsal cutaneous branch of the pudendal nerve and ilioinguinal were the most common donor nerves. The lateral and medial antebrachial cutaneous and lateral femoral cutaneous were the most common recipient nerves. Pooled event rates suggest that some recovered glans sensibility occurs in more than 70% of cismale patients and in more than 90% of transmale patients. Recovered "erogenous" sensation occurs in more than 75% of cismale patients and more than 95% of transmale patients. In cismale patients, outcomes of recovered glans sensibility and erogenous sensation may be better for upper extremity recipient nerves than lower extremity recipient nerves. CONCLUSIONS: Based on the limited data in current literature on genital sensibility after phalloplasty, it is difficult to draw evidence-based conclusions. Yet data support improved outcomes with innervation. A validated outcome measure of "erogenous sensation" and a standardized approach to measuring cutaneous sensibility are required.


Assuntos
Pênis/cirurgia , Procedimentos de Cirurgia Plástica/métodos , Nervo Pudendo/cirurgia , Recuperação de Função Fisiológica/fisiologia , Sensação/fisiologia , Procedimentos Cirúrgicos Urológicos Masculinos/métodos , Coito , Estética , Humanos , Masculino , Satisfação do Paciente , Pênis/inervação , Resultado do Tratamento
19.
Aesthet Surg J ; 39(5): NP123-NP137, 2019 04 08.
Artigo em Inglês | MEDLINE | ID: mdl-30383180

RESUMO

BACKGROUND: Transgender patients may seek nonsurgical methods for facial masculinization and feminization as an adjunct or alternative to undergoing surgical procedures. OBJECTIVES: The authors reviewed the existing literature regarding this topic and provided an overview of nonsurgical techniques for facial masculinization and feminization. METHODS: A comprehensive literature search of the PubMed and MedLine databases was conducted for studies published through December 2017 for techniques and outcomes of nonsurgical facial masculinization and feminization. Keywords were used in performing the search. Data on techniques, outcomes, complications, and patient satisfaction were collected. RESULTS: Four articles fit our inclusion criteria. Given the lack of published literature describing facial injectables in transgender patients, data from the literature describing techniques in cisgender patients were utilized to supplement our review. CONCLUSIONS: Facial feminization can be achieved through injectables such as neurotoxin and fillers for lateral brow elevation, lip augmentation, malar augmentation, and improvement of rhytids. Facial masculinization can be achieved with injectables used for genioplasty, jawline augmentation, and supraorbital ridge augmentation. One must develop best practices for these techniques in the transgender patient population and increase awareness regarding nonsurgical options.


Assuntos
Preenchedores Dérmicos , Face/anatomia & histologia , Feminização , Pessoas Transgênero , Feminino , Humanos , Masculino
20.
Plast Reconstr Surg Glob Open ; 6(6): e1825, 2018 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-30276052

RESUMO

BACKGROUND: Widespread application of vascularized composite allotransplantation (VCA) is currently limited by the required lifelong systemic immunosuppression and its associated morbidity and mortality. This study evaluated the efficacy of ex vivo (after procurement but before transplantation) engineering of allografts using small interfering RNA to knockdown major histocompatibility complex I (MHC-I) and prolong rejection-free survival. METHODS: Endothelial cells (ECs) were transfected with small interfering RNA targeted against MHC-I (siMHC-I) for all in vitro experiments. MHC-I surface expression and knockdown duration were evaluated using quantitative polymerase chain reaction (qPCR) and flow cytometry. After stimulating Lewis recipient cytotoxic lymphocytes (CTL) with allogeneic controls or siMHC-I-silenced ECs, lymphocyte proliferation, CTL-mediated and natural killer-mediated EC lysis were measured. Using an established VCA rat model, allografts were perfused ex vivo with siMHC-I before transplantation. Allografts were analyzed for MHC-I expression and clinical/histologic evidence of rejection. RESULTS: Treatment with siMHC-I resulted in 80% knockdown of mRNA and 87% reduction in cell surface expression for up to 7 days in vitro (P < 0.05). Treatment of ECs with siMHC-I reduced lymphocyte proliferation and CTL-mediated cytotoxicity (77% and 50%, respectively, P < 0.01), without increasing natural killer-mediated cytotoxicity (P = 0.66). In a rat VCA model, ex vivo perfusion with siMHC-I reduced expression in all tissue compartments by at least 50% (P < 0.05). Knockdown prolonged rejection-free survival by 60% compared with nonsense-treated controls (P < 0.05). CONCLUSIONS: Ex vivo siMHC-I engineering can effectively modify allografts and significantly prolong rejection-free allograft survival. This novel approach may help reduce future systemic immunosuppression requirements in VCA recipients.

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