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1.
J Plast Reconstr Aesthet Surg ; 74(11): 2916-2924, 2021 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-34020904

RESUMO

Explantation of breast implants has become increasingly common. This study aimed to analyze breast auto-augmentation following implant explantation (using a laterally designed anterior intercostal artery perforator [AICAP] flap) in patients who did not need new implants and required volume preservation. Twenty-four patients (48 breasts) aged 31-67 years (mean, 52.4 years) with body mass index (BMI) between 24.43 and 29.34 (mean, 27.32) kg/m2 underwent this procedure. All patients had implant-related problems, such as recurrent capsular contracture (n=11), seroma (n=2), animation deformity (n=3), rupture-induced bleeding (n=5), and breast implant disease (n=3). Sizes of implants removed ranged from 215 to 355 ml. The mean flap size was 23.9 cm × 7.5 cm, and the average flap thickness was 2.3 cm (range, 2.0-3.2 cm). Flap survival was clinically examined postoperatively by ultrasonography. Pre- and postoperative final breast volumes were compared by direct patient observation and independent photograph observation by three plastic surgeons according to a 4-point scale (bad=1, regular=2, good=3, and excellent=4) and the brassiere size. All flaps were completely viable after harvesting. No postoperative signs of fat necrosis were observed, and independent plastic surgeon evaluation revealed good and excellent results in all cases. Patient satisfaction evaluated by BREAST-Q data was >90%. This new design, AICAP flap (with a lateral thoracic extension), can be safely used for breast volume restitution after breast implant explantation with high patient satisfaction. This flap exhibited reasonable potential of providing additional volume in patients who undergo implant explantation and require the preservation of similar volume.


Assuntos
Implantes de Mama , Retalho Perfurante/irrigação sanguínea , Adulto , Idoso , Índice de Massa Corporal , Remoção de Dispositivo , Feminino , Sobrevivência de Enxerto , Humanos , Pessoa de Meia-Idade , Tamanho do Órgão , Complicações Pós-Operatórias , Reoperação , Estudos Retrospectivos , Espanha , Transplante Autólogo , Ultrassonografia Mamária
2.
Br J Surg ; 106(10): 1327-1340, 2019 09.
Artigo em Inglês | MEDLINE | ID: mdl-31318456

RESUMO

BACKGROUND: Conflicting evidence challenges clinical decision-making when breast reconstruction is considered in the context of radiotherapy. Current literature was evaluated and key statements on topical issues were generated and discussed by an expert panel at the International Oncoplastic Breast Surgery Meeting in Milan 2017. METHODS: Studies on radiotherapy and breast reconstruction (1985 to September 2017) were screened using MEDLINE, Embase and CENTRAL. The literature review yielded 30 controversial key questions. A set of key statements was derived and the highest levels of clinical evidence (LoE) for each of these were summarized. Nineteen panellists convened for dedicated discussions at the International Oncoplastic Breast Surgery Meeting to express agreement, disagreement or abstention for the generated key statements. RESULTS: The literature review identified 1522 peer-reviewed publications. A list of 22 key statements was produced, with the highest LoE recorded for each statement. These ranged from II to IV, with most statements (11 of 22, 50 per cent) supported by LoE III. There was full consensus for nine (41 per cent) of the 22 key statements, and more than 75 per cent agreement was reached for half (11 of 22). CONCLUSION: Poor evidence exists on which to base patient-informed consent. Low-quality studies are conflicting with wide-ranging treatment options, precluding expert consensus regarding optimal type and timing of breast reconstruction in the context of radiotherapy. There is a need for high-quality evidence from prospective registries and randomized trials in this field.


ANTECEDENTES: El hecho de que la evidencia disponible sea conflictiva supone un reto para la toma de decisiones a la hora de considerar la reconstrucción mamaria en el contexto de radioterapia (radiotherapy, RT). En el seno de un panel de expertos reunidos durante el International Oncoplastic Breast Surgery Meeting celebrado en Milán en 2017, se revisó la literatura disponible y se generaron y discutieron los aspectos más relevantes. MÉTODOS: Se hizo una búsqueda bibliográfica de los estudios de RT y reconstrucción mamaria (1985-septiembre de 2017) en las bases MEDLINE, EMBASE y CENTRAL. La revisión de la literatura permitió identificar 30 cuestiones clave controvertidas. A partir de ellas, se construyeron una serie de afirmaciones, para las que se obtuvo el mayor nivel de evidencia (levels of clinical evidence, LoE) posible. El acuerdo, desacuerdo o abstención respecto a las cuestiones propuestas fueron el resultado de las discusiones de 19 expertos reunidos durante el International Oncoplastic Breast Surgery Meeting. RESULTADOS: Se identificaron 1.522 artículos publicados en revistas con peer review. Se elaboró una lista de 22 afirmaciones clave y se anotó el LoE más alto obtenido para cada una de ellas. El grado de variabilidad fue de II a IV, pero la mayoría de las afirmaciones (54,5%) obtuvieron un LoE III. Hubo un consenso total en el 41% (9/22) de las afirmaciones, mientras que se obtuvo más de un 75% de acuerdo en la mitad de las afirmaciones (11/22). CONCLUSIÓN: La evidencia en la que basar el consentimiento informado en estos pacientes es escasa. Se trata de estudios de baja calidad con gran variedad de opciones terapéuticas, que dificultan el consenso de los expertos acerca del tipo y momento óptimo para la reconstrucción mamaria en el contexto de RT. Para obtener datos de mayor calidad se precisan estudios prospectivos y ensayos clínicos en este campo.


Assuntos
Neoplasias da Mama/cirurgia , Mamoplastia/métodos , Mastectomia/métodos , Implantes de Mama , Neoplasias da Mama/radioterapia , Tomada de Decisão Clínica , Consenso , Medicina Baseada em Evidências , Feminino , Humanos , Fatores de Tempo
3.
Forensic Sci Int ; 289: 150-153, 2018 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-29864601

RESUMO

Congo Red staining is usually used in diagnosing amyloidosis, a pathology characterized by the storage of abnormal proteins in several human organs. When assessed on samples fixated in formalin and embended in paraffin, this staining can undergo several artefacts, causing diagnostic and interpretative difficulties due to its weak stainability and a consequent reduced visibility of the amyloid. These complications, in time, requested several variations of this staining technique, especially in clinical practice, while in the forensic field no protocols has ever been adapted to cadaveric samples, a material that is already characteristically burdened by a peculiar stainability. In our work, studying a sudden death caused by cardiac amyloidosis and diagnosed only with post-mortem exams, we present a modified Congo Red staining used with the purpose to demonstrate amyloid in cadaveric material after the unsuccessfully use of all standard protocols.


Assuntos
Amiloidose/patologia , Corantes , Vermelho Congo , Cardiopatias/patologia , Miocárdio/patologia , Coloração e Rotulagem/métodos , Idoso de 80 Anos ou mais , Feminino , Patologia Legal/métodos , Humanos , Microscopia
4.
Sarcoidosis Vasc Diffuse Lung Dis ; 29(1): 62-8, 2012 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-23311127

RESUMO

INTRODUCTION: The sarcoid condition of vital organs such as heart, lungs, liver and brain, may constitute, though rarely, a dangerous situation for survival. In forensic pathology, sudden death related to such disease represents an unusual event occurring in subjects who die unexpectedly in spite of their previous good health, and whose autopsy reveals, mainly, the involvement of heart or the central nervous system (CNS). THE CASE: The Authors describe a case of sudden death due to systemic sarcoidosis with atypical presentation in a young South American nulliparous woman showing, as the only symptom, occasional episodes of spotting during the last two months of her life. RESULTS: The only noteworthy finding from the autopsy resulted in secondary obstructive hydrocephalus. The subsequent forensic toxicological examination was negative, whereas the histopathological examination, conducted by means of post-fixation techniques and standard coloring methods on the viscera removed during autopsy, revealed useful data to determine the cause of death, consisting of a diffuse inflammatory reaction with giant cells and epithelioid cells of sarcoid type localized in the CNS and in the genitourinary apparatus. CONCLUSIONS: The case presented, ranking among deaths occurred unexpectedly, is a useful opportunity both for clinical remarks, given its inherent diagnostic difficulties, especially in the presence of atypical symptoms, and for legal medicine ones, given the inclusion of sarcoidosis in cases of sudden death that can give rise to criminal investigations.


Assuntos
Doenças do Sistema Nervoso Central/complicações , Sistema Nervoso Central/patologia , Morte Súbita/etiologia , Patologia Legal , Sarcoidose/complicações , Autopsia , Causas de Morte , Doenças do Sistema Nervoso Central/patologia , Morte Súbita/patologia , Evolução Fatal , Feminino , Humanos , Sarcoidose/patologia , Adulto Jovem
5.
Neurochem Res ; 25(6): 867-73, 2000 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-10944006

RESUMO

Naloxone is a specific competitive antagonist of morphine, acting on opiate receptors, located on neuronal membranes. The effects of in vivo administration of naloxone on energy-consuming non-mitochondrial ATP-ases were studied in two different types of synaptic plasma membranes from rat cerebral cortex, known to contain a high density of opiate receptors. The enzyme activities of Na+, K(+)-ATP-ase, Ca(2+), Mg(2+)-ATP-ase and Mg(2+)-ATP-ase and of acetylcholinesterase (AChE) were evaluated on synaptic plasma membranes obtained from control and treated animals with effective dose of naloxone (12microg x kg(-1) i.m. 30 minutes). In control (vehicle-treated) animals specific enzyme activities assayed on these two types of synaptic plasma membranes are different, being higher on synaptic plasma membranes of II type than of I type, because the first fraction is more enriched in synaptic plasma membranes. The acute treatment with naloxone produced a significant decrease in Ca(2+),Mg(2+)-ATP-ase activity and an increase in AChE activity, only in synaptic plasma membranes of II type. The decrease of Ca(2+), Mg(2+)-ATP-ase enzymatic activity and the increased AChE activity are related to the interference of the drug on Ca(2+) homeostasis in synaptosoplasm, that leads to the activation of calcium-dependent processes, i.e. the extrusion of neurotransmitter. These findings give further evidence that pharmacodynamic characteristics of naloxone are also related to increase [Ca(2+)]i, interfering with enzyme systems (Ca(2+), Mg(2+)-ATP-ase) and that this drug increases acetylcholine catabolism in synaptic plasma membranes of cerebral cortex.


Assuntos
Adenosina Trifosfatases/metabolismo , Córtex Cerebral/efeitos dos fármacos , Naloxona/farmacologia , Antagonistas de Entorpecentes/farmacologia , Membranas Sinápticas/efeitos dos fármacos , Acetilcolinesterase/metabolismo , Animais , Córtex Cerebral/enzimologia , Ativação Enzimática , Masculino , Naloxona/administração & dosagem , Antagonistas de Entorpecentes/administração & dosagem , Ratos , Ratos Wistar , Membranas Sinápticas/enzimologia
7.
Tumori ; 77(2): 155-9, 1991 Apr 30.
Artigo em Inglês | MEDLINE | ID: mdl-2048228

RESUMO

Twenty patients underwent resections for head and neck cancer. The reconstructive procedure used was the free forearm flap with microsurgical technique on 22 occasions. The free forearm flap was used in its simple or composite form, with double or manifold islands, with a segment of the radius for mandible reconstruction or with two islands joined solely by the vascular pedicle, constituting what the authors call "tandem flap", with excellent results. The procedure does not replace conventional ones, but the authors believe it should be regarded as one of the choice flaps by surgeons dedicated to this special field.


Assuntos
Neoplasias de Cabeça e Pescoço/cirurgia , Retalhos Cirúrgicos/métodos , Adulto , Idoso , Feminino , Humanos , Masculino , Pessoa de Meia-Idade
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