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El propósito de este trabajo es presentar una nueva opción reconstructiva basada en un colgajo aleatorio circunferencial diseñado junto al defecto tisular a reconstruir, lo que ofrece características idénticas de espesor y color, y una sutura circunferencial tipo round block en el defecto que englobaría al colgajo. Creemos que tiene gran versatilidad dado que puede emplearse en múltiples territorios corporales. Con este artículo queremos demostrar esta versatilidad y describir los pasos para alcanzar buenos resultados.

El síndrome de isquemia reperfusión es el conjunto de sucesos desarrollados desde la instauración de la isquemia en un tejido hasta su posterior reperfusión. Se trata de una condición limitante y, hasta la fecha, inevitable, en toda cirugía que implique una revascularización tisular. En un intento por buscar medidas terapéuticas frente al estrés oxidativo desarrollado durante este síndrome en los colgajos microvascularizados, se valoró la acción del antioxidante melatonina y de los anestésicos locales lidocaína y prilocaína en un modelo de isquemia reperfusión en el colgajo epigástrico microvascularizado en ratas. Tanto el indol como los fármacos vasoactivos poseen un efecto protector en el tratamiento del síndrome de isquemia reperfusión, desde un punto de vista bioquímico e histológico, destacando su acción sinérgica manifestada principalmente como un incremento en la neovascularización tisular.Ischemia-reperfusion injury is a set of events developed since the introduction of ischemia in a tissue to subsequent reperfusion. It is a limiting condition and, to date, inevitable in any surgery involving tissue revascularization. In an attempt to find therapeutic measures against oxidative stress developed during this syndrome in microvascular flaps, we evaluated the antioxidant action of melatonin and local anesthetics lidocaine and prilocaine in a model of ischemia reperfusion in the microvascularized epigastric flap in rats. The indole and vasoactive drugs have a protective effect in the treatment of ischemia reperfusion injury, from both a biochemical and histological view, emphasizing their synergistic action mainly manifested as an increase in tissue neovascularization.

A la hora de valorar las múltiples técnicas empleadas en el rejuvenecimiento facial y centrándonos de manera particular en aquellos procedimientos mínimamente invasivos complementarios a las intervenciones habituales en Cirugía Plástica-Estética, cobra especial relevancia el conocimiento exhaustivo de las estructuras musculares implicadas en la mímica facial. A tal efecto, se ha realizado un estudio anatómico en cadáveres frescos, en los que se han disecado las principales estructuras referidas. Se presenta un resumen iconográfico de los músculos faciales implicados, haciendo hincapié en su anatomía descriptiva y funcional, así como un recuerdo de las principales áreas problemáticas por alguna circunstancia especial (presencia de un nervio sensitivo o motor).To value the multiple technologies involved in facial rejuvenation and focusing in those minimally invasive complementary procedures to the usual Plastic and Aesthetic Surgeries, it´s very important the exhaustive knowledge of the muscular structures involved in the facial movements. To such an effect, an anatomical study has been realized in fresh corpses, dissecting the principal above-mentioned structures. We present an iconographic summary of the facial implied muscles, emphasizing in his descriptive and functional anatomy, as well as a recollection of the principal problematic areas for some special circumstance (presence of a sensory or motor nerve).

La Microcirugía es la técnica empleada para la realización de la microanastomosis vascular. El objetivo del presente estudio es comparar dos tipos de técnicas de microsutura: los puntos simples clásicos, de empleo habitual en la microcirugía vascular, y los puntos de colchonero horizontales, no evaluados habitualmente para este tipo de cirugía. Fueron intervenidas 20 ratas albinas de la cepa Wistar (peso medio de 250 - 300 gr.) bajo anestesia general; realizamos sección transversal en la arteria femoral, procediendo a su reparación microquirúrgica inmediata. Se establecieron 2 grupos de animales: en el grupo A (n=10), la microsutura se hizo mediante 6 puntos sueltos simples, y en el grupo B (n=10), empleando 3 puntos de colchonero horizontal. Comprobamos la patencia en el desclampado inmediato y tras una hora del desclampado (para ambas técnicas fue positiva en el 100% de los casos), y la hemorragia en ambos tiempos (se registró un único caso de sangrado en el postoperatorio inmediato en el grupo B, que requirió la revisión de la microsutura). El tiempo medio de ejecución de la sutura en el grupo B, 15 minutos aproximadamente, fue más corto que en el grupo A, 21 minutos aproximadamente, diferencia estadísticamente significativa (p < 0.0001).Microsurgery is the procedure of choice for vascular microanastamoses. The objective of this study was to compare two types of suture techniques: classic interrupted suture anastomoses, commonly used for vascular anastamoses in microsurgery, and another technique using horizontal mattress sutures, rarely evaluated in this type of surgery. Twenty albino Wistar rats were operated (average weight: 250 - 300 gr.) under general anaesthesia. A transverse section of the femoral artery was performed and immediately followed by an anastamoses. The animals were placed into two groups of ten. The classic 6 interrupted suture anastomoses technique was performed in group A (n = 10) and another technique using 3 horizontal mattress sutures was performed in group B (n = 10). The patency was checked immediately following anastomoses and at the end of the first hour postanastomoses (for both techniques were always 100% in both times), and so was checked the presence of bleeding (only one case in group B was reported immediately following the anastomoses). The mean anastomoses time for the group B, 15 minutes approximately, was shorter than that for the group A, 21 minutes approximately, and the difference was statistically significant (p < 0.0001).

La reconstrucción mamaria mediante colgajo DIEP (Deep Inferior Epigastric Perforator) se encuentra condicionada en muchas ocasiones por características de la paciente o del tratamiento oncológico recibido, de tal forma que diversos grupos de trabajo contraindican este método en caso de existir alguno de esos factores. Nosotros hemos realizado un estudio de los mismos, analizando su impacto sobre la viabilidad del colgajo y su correlación con las complicaciones postoperatorias, para optimizar así su indicación. Los condicionantes analizados son el tabaco, las intervenciones quirúrgicas previas que afecten en alguna medida la pared abdominal, el sobrepeso u obesidad de la paciente, el volumen de la mama contralateral, el tratamiento radioterápico anterior o posterior a la reconstrucción, y finalmente el gasto sanitario que supone. Estas controversias son a su vez las más discutidas en la literatura al respecto. Se valoran los resultados obtenidos tras 55 reconstrucciones mamarias mediante colgajo DIEP entre enero de 2000 y noviembre de 2005, así como los estudios y publicaciones más recientes existentes sobre esta materia. Hemos encontrado una pobre correlación entre los índices de fracaso del colgajo y las controversias estudiadas, determinando así dos contraindicaciones absolutas para que una paciente pudiese beneficiarse de un colgajo DIEP: abdominoplastia previa y radioterapia adyuvante tras reconstrucción inmediata. Los excelentes resultados que se obtienen globalmente, nos llevan a recomendar este colgajo por encima de otras opciones terapéuticas.The use of DIEP (Deep Inferior Epigastric Perforator) flap surgery in breast reconstruction is often conditioned by the patient and the oncologic treatment characteristics to such an extent that several working groups advise against this surgical procedure when any of these factors is present. In the study of this interaction, an analysis of its impact on the flap feasibility and its correlation with postoperative complications was carried out as an attempt to gain accuracy in the prescription of this technique. The factors under assessment were smoking habits, previous surgical interventions involving the abdominal wall to any extent, patient obesity, contralateral breast size, pre- and post-reconstruction radiotherapy, and lastly the medical costs. These factors coincide with the most debated issues in the related literature. The results of 55 breast reconstructions by DIEP flap surgery performed between january 2000 and november 2005 were evaluated, together with the latest studies and publications on the subject. The study revealed a poor correlation between DIEP flap surgery failure rates and the conditioning factors analyzed, while two scenarios proved to be absolutely incompatible with successful DIEP flap surgery: previous abdominoplasty and adjuvant radiotherapy after immediate reconstruction. In light of the excellent global results obtained, DIEP flap surgery is recommended over other therapeutic options.

La cobertura de la mano es un desafío para el cirujano plástico, debido a las múltiples opciones disponibles. El colgajo interóseo posterior de base distal es una de las opciones más útiles para la reconstrucción de esta clase de defectos. Sin embargo, debido a su inconstante anatomía vascular pueden acontecer problemas en su disección. Las variaciones anatómicas son bien conocidas y son básicamente de dos tipos: la ausencia de anastomosis distal con la arteria interósea anterior o la hipoplasia o aplasia en el tercio distal del antebrazo de la arteria interósea posterior, provocando un porcentaje relativamente alto de necrosis parcial, que puede acarrear un fallo en la cobertura de esta zona. Con objeto de prevenir un resultado desfavorable, hemos usado un colgajo interóseo posterior en forma de transferencia libre para el tratamiento quirúrgico de una mujer que fue remitida a nuestro Servicio con un defecto de 7 x 7 cm de diámetro en el dorso de la mano izquierda.Hand coverage is a challenge for plastic surgeons, because there are many therapeutic options available. The distally based posterior interosseous artery flap is one of the most useful elections for reconstruction of this defect. However, we can find problems in dissecting the flap due to an inconstant vascular anatomy. Anatomical variants are well known and they can be of two types: the absence of the distal anastomosis with the anterior interosseous artery and the hypoplasia or aplasia of the middle third of fhe posterior interosseous artery, with a relatively high rate of partial flap loss which may result in coverage failure. In order to prevent an unsuccessful flap harvest, we have used an interosseous free flap for a woman with a 7 x 7 cm defect in the dorsum of her left hand.

La cobertura de la mano es un desafío para el cirujano plástico, debido a las múltiples opciones disponibles. El colgajo interóseo posterior de base distal es una de las opciones más útiles para la reconstrucción de esta clase de defectos. Sin embargo, debido a su inconstante anatomía vascular pueden acontecer problemas en su disección. Las variaciones anatómicas son bien conocidas y son básicamente de dos tipos: la ausencia de anastomosis distal con la arteria interósea anterior o la hipoplasia o aplasia en el tercio distal del antebrazo de la arteria interósea posterior, provocando un porcentaje relativamente alto de necrosis parcial, que puede acarrear un fallo en la cobertura de esta zona. Con objeto de prevenir un resultado desfavorable, hemos usado un colgajo interóseo posterior en forma de transferencia libre para el tratamiento quirúrgico de una mujer que fue remitida a nuestro Servicio con un defecto de 7 x 7 cm de diámetro en el dorso de la mano izquierda.

A la hora de valorar las múltiples técnicas empleadas en el rejuvenecimiento facial y centrándonos de manera particular en aquellos procedimientos mínimamente invasivos complementarios a las intervenciones habituales en Cirugía Plástica-Estética, cobra especial relevancia el conocimiento exhaustivo de las estructuras musculares implicadas en la mímica facial. A tal efecto, se ha realizado un estudio anatómico en cadáveres frescos, en los que se han disecado las principales estructuras referidas. Se presenta un resumen iconográfico de los músculos faciales implicados, haciendo hincapié en su anatomía descriptiva y funcional, así como un recuerdo de las principales áreas problemáticas por alguna circunstancia especial (presencia de un nervio sensitivo o motor).

Introduction: Pyoderma gangrenosum is arare cause of skin necrosis after surgery. It often appears with extensive ulcerations and scaring with significant aesthetic aftermaths. The pathogenesis is poorly understood but often associated with inflammatory diseases, however post-surgical idiopathic pyoderma gangrenosum can occur. Case Report: We report a case of pyoderma gangrenosum following a bilateral breast reconstruction in a 33-year-old woman, successfully treated with steroids. A week after the surgery wounds started to break down and extensive necrotic ulceration appeared quickly covering both breasts. After dermatopathology evaluation she received antibiotics and prednisone and three months later wounds were completely healed and surgery was not necessary.

La reconstrucción mamaria con colgajo libre abdominal se ha convertido en la opción terapéutica de elección en nuestro centro hospitalario cuando se necesita abundante cantidad de tejido. La culminación de este tipo de reconstrucción requiere un número variable de procedimientos auxiliares de retoque. Revisamos las historias de las pacientes sometidas en nuestro centro a reconstrucción mamaria con colgajo libre abdominal entre enero de 2010 y diciembre de 2013. El criterio de inclusión fue la reconstrucción del pezón como última cirugía. Las pacientes fueron estratificadas atendiendo a factores relacionados con la reconstrucción microquirúrgica y la existencia de radioterapia adyuvante. Analizamos el número y tipo de procedimientos y cirugías de retoque, así como el tiempo transcurrido hasta completar el proceso de reconstrucción. En total, recogimos 68 pacientes reconstruidas con colgajo libre abdominal. De ellas, 31 (45,6%) completaron la reconstrucción mamaria. La media de procedimientos fue de 3,2 por paciente, con una media de 2,4 tiempos quirúrgicos y un tiempo medio de 15,5 meses hasta la reconstrucción del pezón. El momento de la reconstrucción, la bilateralidad, el tratamiento con radioterapia y la presencia de complicaciones tempranas del colgajo no se relacionaron con diferencias estadísticamente significativas en la tasa de cirugía secundaria. Los colgajos libres abdominales necesitan frecuentemente cirugías secundarias para mejorar el resultado y terminar la reconstrucción. Remarcamos la necesidad de planificar la reconstrucción desde el primer tiempo quirúrgico para disminuir la necesidad de cirugías de retoque y el tiempo hasta completar la reconstrucción mamaria.

La transferencia libre del colgajo radial de antebrazo se emplea en la práctica clínica habitual en numerosos procedimientos reconstructivos. Sin embargo, también es popular debido a la potencial morbilidad que se genera en la zona donante del colgajo: trastornos vasculares, motores, sensitivos o estéticos. A pesar de haberse realizado numerosas modificaciones tanto en la disección del colgajo como en el cierre del defecto, hasta la actualidad ninguno de los procedimientos empleados ha demostrado paliar completamente estas secuelas. Presentamos nuestra experiencia con la utilización de un colgajo de rotación-avance en V-Y fasciocutáneo basado en los vasos perforantes de la arteria cubital para el tratamiento del defecto resultante de la transferencia libre del colgajo antebraquial radial. Hemos empleado este procedimiento en 7 pacientes con edades comprendidas entre los 30 y los 86 años. Las dimensiones del colgajo radial en el eje longitudinal del antebrazo fueron desde los 4 a los 5,5 cm, con un eje transversal al pedículo vascular desde los 8 a los 10 cm. En todos los casos se conservó la motricidad de antebrazo- muñeca-mano-dedos sin registrarse adherencias a nivel tendinoso. No observamos alteraciones en la fuerza ni en la sensibilidad respecto al preoperatorio en el antebrazo intervenido. Las cicatrices fueron estéticamente aceptables. Concluimos que el colgajo fasciocutáneo de rotación-avance en V-Y basado en perforantes de la arteria cubital aporta numerosas ventajas frente a los injertos cutáneos u otros sustitutos dérmicos, además de ser más barato, con un período de cicatrización más rápido y con un resultado estético superior.

Background: Artificial intelligence (AI) is rapidly fuelling a fundamental transformation in the practice of pathology. However, clinical integration remains challenging, with no AI algorithms to date in routine adoption within typical anatomic pathology (AP) laboratories. This survey gathered current expert perspectives and expectations regarding the role of AI in AP from those with first-hand computational pathology and AI experience., Methods: Perspectives were solicited using the Delphi method from 24 subject matter experts between December 2020 and February 2021 regarding the anticipated role of AI in pathology by the year 2030. The study consisted of three consecutive rounds: 1) an open-ended, free response questionnaire generating a list of survey items; 2) a Likert-scale survey scored by experts and analysed for consensus; and 3) a repeat survey of items not reaching consensus to obtain further expert consensus., Findings: Consensus opinions were reached on 141 of 180 survey items (78.3%). Experts agreed that AI would be routinely and impactfully used within AP laboratory and pathologist clinical workflows by 2030. High consensus was reached on 100 items across nine categories encompassing the impact of AI on (1) pathology key performance indicators (KPIs) and (2) the pathology workforce and specific tasks performed by (3) pathologists and (4) AP lab technicians, as well as (5) specific AI applications and their likelihood of routine use by 2030, (6) AI's role in integrated diagnostics, (7) pathology tasks likely to be fully automated using AI, and (8) regulatory/legal and (9) ethical aspects of AI integration in pathology., Interpretation: This systematic consensus study details the expected short-to-mid-term impact of AI on pathology practice. These findings provide timely and relevant information regarding future care delivery in pathology and raise key practical, ethical, and legal challenges that must be addressed prior to AI's successful clinical implementation., Funding: No specific funding was provided for this study., Competing Interests: Declaration of interests M.A.B. is a board member of Cells IA Technologies; D.S.M. received consulting fees from, and is a scientific advisory board member of, Epredia and Roche, received honoraria for a sponsored presentation from Roche, and holds a leadership or fiduciary role in the Digital Pathology Association (DPA); J.V.L. received research funding from ContextVision, Sectra, and Philips, consulting fees from, and is a scientific advisory board member of, ContextVision and Philips, is a member of the Board of Directors of the DPA, Chair of the AI Taskforce of the European Society of Pathology, and is Chief Scientific Officer of, and holds stocks or stock options from, Aiosyn B.V.; L.P. received consulting fees from Hamamatsu and Ibex, has patents planned, issued or pending (LeanAP Innovators), holds an unpaid leadership or fiduciary role in other board, society, committee or advocacy group (DPA and ASC), and is a shareholder of Ibex; C.E. received consulting fees from Mindpeak, payment or honoraria for lectures, presentations, speakers bureaus, manuscript writing or educational events from Leica and 3DHISTECH, and payment for expert testimony from MSD; D.J.H received royalties from Up-To-Date/LWW for the creation of educational content, consulting fees from IQVIA/Genae and VitaDx, and is a board member and shareholder of Techcyte Inc.; M.D.H received research funding from the National Cancer Institute (NCI), National Institutes of Health (NIH), and support for attending meetings and/or travel from the College of American Pathologists (CAP), DPA, and European Society for Digital and Integrative Pathology, and holds an unpaid leadership or fiduciary role in the DPA; M.E.S. and is a board member and shareholder of Techcyte Inc.; B.W. received honoraria for presentations from Leica Biosystems and is a scientific advisory board member of Paige AI; A.L. received honoraria from General Electric for lectures, and is a board member of Siemens Healthineers and Cells IA Technologies; J.A.F. is a shareholder of Cells IA Technologies; J.S. received institutional research funding from Google/Alphabet Inc. and Lunit Inc., consulting fees from KCK MedTech, and is an advisory board member of Crosscope, Inc. The remaining authors declare no competing interests., (Copyright © 2022 The Author(s). Published by Elsevier B.V. All rights reserved.)

Human-adipose-derived mesenchymal stem cells (hADMSCs) are multipotent stem cells which have become of great interest in stem-cell therapy due to their less invasive isolation. However, they have limited migration and short lifespans. Therefore, understanding the mechanisms by which these cells could migrate is of critical importance for regenerative medicine. Methods: Looking for novel alternatives, herein, hADMSCs were isolated from adipose tissue and co-cultured with human monocytes ex vivo. Results: A new fused hybrid entity, a foam hybrid cell (FHC), which was CD90 + CD14 + , resulted from this co-culture and was observed to have enhanced motility, proliferation, immunomodulation properties, and maintained stemness features. Conclusions: Our study demonstrates the generation of a new hybrid cellular population that could provide migration advantages to MSCs, while at the same time maintaining stemness properties.

Background:  Ischemia-reperfusion (I/R) injury is a serious condition that can affect the success rate of microsurgical reconstructions of ischemic amputated limbs and complex tissue defects requiring free tissue transfers. The purpose of this study was to evaluate the effects of ischemic preconditioning (IPC) and C1 esterase inhibitor (C1-Inh) intravenous administration following I/R injury in a rat skin flap model., Methods:  Superficial caudal epigastric skin flaps (3 cm × 7 cm) were performed on 50 Wistar rats that were randomly divided into five groups. Ischemia was not induced in the control group. All other flaps underwent 8 hours of ischemia prior to revascularization: I/R control group (8-hour ischemia), IPC group (preconditioning protocol + 8-hour ischemia), C1-Inh group (8-hour ischemia + C1-Inh), and IPC + C1-Inh group (preconditioning protocol + 8-hour ischemia + C1-Inh). Survival areas were macroscopically assessed after 1 week of surgery, and histopathological and biochemical evaluations were also measured., Results:  There were no significant differences in flap survival between the treatment groups that were suffering 8 hours of ischemia and the control group. A significant increase in neovascularization and lower edema formation were observed in the IPC group compared with that in the I/R group. Biochemical parameters did not show any significant differences., Conclusion:  Intravenous administration of C1-Inh did not significantly modulate I/R-related damage in this experimental model, but further research is needed. On the other hand, IPC reduces tissue damage and improves neovascularization, confirming its potential protective effects in skin flaps following I/R injury., Competing Interests: None declared., (Thieme. All rights reserved.)

Background: Previous studies on solid organ transplantation have shown that cold ischemia contributes to the development of chronic allograft vasculopathy. The authors evaluated the effect of cold ischemia on the development of chronic rejection in vascularized composite allotransplantation., Methods: Thirty rat hindlimbs were transplanted and divided into two experimental groups: immediate transplantation and transplantation after 7 hours of cold ischemia. The animals received daily low-dose immunosuppression with cyclosporine A for 2 months. Intimal proliferation, arterial permeability rate, leukocyte infiltration, and tissue fibrosis were assessed. The CD3, CD4, CD8, CD20, and CD68 cells per microscopic field (200×) were counted, and C4d deposition was investigated. Cytokine RNA analysis was performed to measure tumor necrosis factor-α, interleukin-6, and interleukin-10 levels., Results: Significant differences were found in the intimal proliferation and arterial permeability rate between the two groups (p = 0.004). The arterial permeability rate worsened in the most distal and small vessels (p = 0.047). The numbers of CD3, CD8, CD20, and CD68 were also statistically higher in the cold ischemia group (p < 0.05, all levels). A trend toward significance was observed with C4d deposition (p = 0.059). No differences were found in the RNA of cytokines., Conclusions: An association between cold ischemia and chronic rejection was observed in experimental vascularized composite allotransplantation. Chronic rejection intensity and distal progression were significantly related with cold ischemia. The leukocyte infiltrates in vascularized composite allotransplantation components were a rejection marker; however, their exact implication in monitoring and their relation with cold ischemia are yet to be clarified.

There are a number of approaches for the repair of scalp defects, including local, regional, and distant options. The use of a local double triangular hatchet flap has numerous advantages due to its mixed rotational and advancement components, its large size, and the possibility of maintaining the cosmetic appearance of the hairline as the flap has similar characteristics to those of the area to be reconstructed. We present our experience with a series of skin tumors of the scalp. After oncologic excision, immediate repair of the defect was performed using this double flap. The surgical technique and the advantages of this type of reconstruction are discussed. We believe that the hatchet flap is an ideal option for the reconstruction of moderate-sized scalp defects., (Copyright © 2011 Elsevier España, S.L. and AEDV. All rights reserved.)

Foot polydactyly constitutes one of the most frequent congenital malformations. Any of its forms (preaxial, postaxial and central) can be associated with other syndromes or congenital disease. We report the case of a family in which all its members (a mother and her five children) showed a postaxial bilateral polydactylism, except a patient in whom the presentation was unilateral. Another one was associating in addition a postaxial unilateral polydactylism of the hand. All the patients with exception of the mother needed surgical treatment. It is not common to find in the literature relating to the postaxial polydactyly of the foot, families with a number so raised of cases, being the incidence of 100% in this case. Due to the high prevalence of this disease, it is important to standardize an anatomical classification in order to elaborate suitable surgical protocols.

A 12-year-old child presented an indurate tumour in the volar aspect of her carpus. After proceeding to incisional biopsy and histological examination, it was concluded that it was a case of Dupuytren's disease. In view of these results, we proceeded to excise this lesion, confirming the previous diagnosis after a new histological examination. There was no sign of recurrence 13 months after surgery in this case of Dupuytren disease in a child. Dupuytren's disease is a very rare entity in childhood, whose incidence increases with age. It is not usually observed in patients younger than 16 years. There are few papers mentioning cases of Dupuytren's disease in childhood. We report a case, histologically confirmed, of Dupuytren's disease in childhood.