Your browser doesn't support javascript.
loading
Mostrar: 20 | 50 | 100
Resultados 1 - 20 de 298
Filtrar
1.
Clin Ter ; 174(6): 469-472, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-38048106

RESUMO

Abstract: Despite the advances made by therapeutic technologies, healthcare-associated infections (HAIs) are currently still a worldwide problem. Central-line-associated bloodstream infections (CLABSIs) are one of the most common causes of HAIs. The cost of CLABSIs is considerable, both for the increase in morbidity and financial resources expenses. Coagulase-negative staphylococci are the common pathogens responsible for CLABSIs, followed by Staphylococcus aureus, Enterococci, and Candida spp. The Enterococcus genus comprises of more than 50 species but E. faecalis and E. faecium are the most common causes of infections in humans. Enterococcus Raffinosus (ER) is a non-faecalis and non-faecium enterococcus even if ER has rarely been proven to be a human pathogen, recent reports of infections caused by enterococci that are relatively resistant to beta-lactam antibiotics by non-p-lactamase mechanisms have included strains of ER. Here we describe a first report of CLABSI due to Enterococcus Raffinosus in a cancer patient.


Assuntos
Infecção Hospitalar , Neoplasias , Sepse , Humanos , Enterococcus
2.
Clin Ter ; 173(6): 512-515, 2022.
Artigo em Inglês | MEDLINE | ID: mdl-36373445

RESUMO

Introduction: Multiple chemical sensitivity (MCS), is a syndrome characterised by increased sensitivity to the exposure of environmental chemicals (1). There are considerable difficulties in reaching a good estimate of the prevalence of disease and the main pathogenetic hypotheses take into account both the organic and psychiatric/psychological factors. Treatment with epidermal growth factor tyrosine kinase receptor inhibitors (tkis), like Osimertinib, results in improved progression-free survival (PFS) compared to chemotherapy, in Non-small-cell lung carcinoma (NSCLC) with epidermal growth factor receptor (EGFR) mutation (2). Case report: We describe the case of a 74 year old woman with history of MCS and fibromyalgia in treatment with Osimertinib for EGFR-mutated NSCLC. Patient initially refused any form of active therapy for lung cancer, but thanks to teamwork and the important support of the psychologist, the patient decided to start treatment with Osimertinib at a reduced dose, not 80 mg but 40 mg. Subsequently, after few days , of his own free will and without informing the staff physicians, the patient changed the treatment schedule by taking one quarter of the dose of the medicine every other day, justifying this choice in therapeutic modification because of her fear and intolerance to any type of medicine and/ or chemical substance, being influenced by MCS. Management & outcome: Despite the changes in the treatment plan, a PET scan performed after two months showed a sigificative lung response and the stability of bone metastases. Discussion. Our case describes a significative response with Osimertinib despite the change in dosage and schedule in a patient with MCS. Our experience deserves to be considered in the light of its particularity and uniqueness as it shows an excellent response to treatment with Osimertinib despite the change made to the dosage and schedule, in a patient presenting in her medical history this rare pathological condition: MCS syndrome.


Assuntos
Carcinoma Pulmonar de Células não Pequenas , Neoplasias Pulmonares , Sensibilidade Química Múltipla , Feminino , Humanos , Idoso , Carcinoma Pulmonar de Células não Pequenas/tratamento farmacológico , Carcinoma Pulmonar de Células não Pequenas/genética , Carcinoma Pulmonar de Células não Pequenas/patologia , Neoplasias Pulmonares/tratamento farmacológico , Neoplasias Pulmonares/genética , Mutação , Receptores ErbB/genética , Receptores ErbB/uso terapêutico , Inibidores de Proteínas Quinases/uso terapêutico , Inibidores de Proteínas Quinases/farmacologia
3.
Rev. Fac. Med. Hum ; 22(4): 914-915, octubre-diciembre 2022.
Artigo em Inglês, Espanhol | LILACS-Express | LILACS | ID: biblio-1402133

RESUMO

Mr. Editor: I have read carefully and with great interest, the article called Anxiety level of rst-year medical students from (1) a private university in Peru in times of Covid-19 by Saravia-Bartra et al. published in the journal of the Facultad de Medicina Humana URP where the grade of anxiety present among freshman medical students of a private university is presented. Let me complement the information given in this new article by exposing some factors that can predispose to this condition.


Sr. Editor: He leído con detenimiento y gran interés el artículo Nivel de ansiedad de estudiantes de medicina de primer año de una universidad privada del Perú en tiempos de Covid-191 de Saravia-Bartra y cols. publicado en la revista Facultad de Medicina Humana URP donde se da a conocer el grado de ansiedad presente en estudiantes de medicina del primer año de una universidad privada. Permítame complementar la información dada de este novedoso artículo exponiendo algunos factores que pueden predisponer esta condición.

4.
Clin Ter ; 173(4): 342-346, 2022.
Artigo em Inglês | MEDLINE | ID: mdl-35857051

RESUMO

Background: Breast is a symbol of femininity, motherhood and sexuality. Breast cancer (BC) is the leading cause of cancer death in women worldwide and most frequent cancer in Italy: in 2019, 53.500 new cases were diagnosed. BC and its treatment, the disturbances of body image, and mental health problems such as anxiety and depression could influence sexuality. Very often the aspect of sexuality in BC is likely not to be fully investigated: cultural barriers may also contribute to lack of attention to these issues. In Italy, there are very few Breast Units that provide the figure of the sexologist and psycho-oncologist. Methods: We enlisted 141 BC patients (pts), mean age was 54 years afferent to Breast Unit S. Maria Goretti Hospital, Latina, from March 2019 to March 2020. All pts had undergone surgical intervention. Participants were invited to complete a structured questionnaire, which included four close-up questions regarding self-image, sexual activity, sexual satisfaction, analyzing these aspects before and after BC and its treatments. Finally the participants were asked if they needed the sexologist and psycho-oncologist. Results: Only 2/141 pts (1.41%) refused to participate in our study. Of 139 participants, 68 (48.92%) had disturbances of body image, 26 (18.7%) had sexuality greatly negatively affected, and 103 (74.1%) every kind of sexual dissatisfaction after BC. 38 pts (27.3%) would require the help of the sexologist. 135 ( 97%) would require the help of the psycho-oncologist. Despite the negative influence in their body-image and sexuality, few pts require the help of the sexologist, but nearly all pts require the help of the psycho-oncologist. Conclusion: In our study nearly all pts require the help of the psycho-oncologist, but few pts of the sexologist. Further studies will be needed to understand the reasons for this disparity: at the moment we are carrying out another project following this illustration, with the aim of understanding why this disparity.


Assuntos
Neoplasias da Mama , Imagem Corporal/psicologia , Neoplasias da Mama/complicações , Cicatriz , Feminino , Humanos , Pessoa de Meia-Idade , Qualidade de Vida/psicologia , Comportamento Sexual/psicologia , Sexualidade/psicologia
5.
Hernia ; 26(2): 411-436, 2022 04.
Artigo em Inglês | MEDLINE | ID: mdl-35018560

RESUMO

PURPOSE: To assess the incidence of incisional hernia (IH) across various type of incisions in colorectal surgery (CS) creating a map of evidence to define research trends, gaps and areas of future interest. METHODS: Systematic review of PubMed and Scopus from 2010 onwards. Studies included both open (OS) and laparoscopic (LS). The primary outcome was incidence of IH 12 months after index procedure, secondary outcomes were the study features and their influence on reported proportion of IH. Random effects models were used to calculate pooled proportions. Meta-regression models were performed to explore heterogeneity. RESULTS: Ninetyone studies were included reporting 6473 IH. The pooled proportions of IH for OS were 0.35 (95% CI 0.27-0.44) I2 0% in midline laparotomies and 0.02 (95% CI 0.00-0.07), I2 52% for off-midline. In case of LS the pooled proportion of IH for midline extraction sites were 0.10 (95% CI 0.07-0.16), I2 58% and 0.04 (95% CI 0.03-0.06), I2 86% in case of off-midline. In Port-site IH was 0.02 (95% CI 0.01-0.04), I2 82%, and for single incision surgery (SILS) of 0.06-95% CI 0.02-0.15, I2 81%. In case of stoma reversal sites was 0.20 (95% CI 0.16-0.24). CONCLUSION: Midline laparotomies and stoma reversal sites are at high risk for IH and should be considered in research of preventive strategies of closure. After laparoscopic approach IH happens mainly by extraction sites incisions specially midline and also represent an important area of analysis.


Assuntos
Cirurgia Colorretal , Hérnia Incisional , Colectomia/efeitos adversos , Cirurgia Colorretal/efeitos adversos , Herniorrafia/efeitos adversos , Humanos , Hérnia Incisional/epidemiologia , Hérnia Incisional/etiologia , Hérnia Incisional/prevenção & controle , Fatores de Risco
6.
Strahlenther Onkol ; 198(3): 236-246, 2022 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-34351452

RESUMO

BACKGROUND: Published treatment technique comparisons for postoperative left-sided whole breast irradiation (WBI) with deep-inspiration breath-hold (DIBH) are scarce, small, and inconclusive. In this study, fully automated multi-criterial plan optimization, generating a single high-quality, Pareto-optimal plan per patient and treatment technique, was used to compare for a large patient cohort 1) intensity modulated radiotherapy (IMRT) with two tangential fields and 2) volumetric modulated arc therapy (VMAT) with two small tangential subarcs. MATERIALS AND METHODS: Forty-eight randomly selected patients recently treated with DIBH and 16â€¯× 2.66 Gy were included. The optimizer was configured for the clinical planning protocol. Comparisons between IMRT and VMAT included dosimetric plan parameters, estimated excess relative risks (ERR) for toxicities, delivery times, MUs, and deliverability accuracy at a linac. RESULTS: The automatically generated IMRT and VMAT plans applied in this study were similar or higher in quality than the manually generated clinical plans. For equal PTVin V95% (98.4 ± 0.9%), VMAT had significant advantages compared to IMRT regarding breast dose homogeneity and doses in heart and ipsilateral lung, at the cost of some minor deteriorations for contralateral breast (few cases with larger deteriorations) and lung. Conformality improved from 1.38 to 1.18 (p < 0.001). With VMAT, ERR for major coronary events and ipsilateral lung tumors were reduced by 3% (range: -1-12%) and 16% (range: -3-38%), respectively. MUs and delivery times were higher for VMAT. There were no statistical differences in γ passing rates. CONCLUSION: For WBI in conservative therapy of left-sided breast patients treated with DIBH, VMAT with two tangential subarcs was generally dosimetrically superior to IMRT with two tangential static fields. Results need confirmation by robustness analyses.


Assuntos
Radioterapia de Intensidade Modulada , Neoplasias Unilaterais da Mama , Humanos , Órgãos em Risco/efeitos da radiação , Radiometria , Dosagem Radioterapêutica , Planejamento da Radioterapia Assistida por Computador/métodos , Radioterapia de Intensidade Modulada/métodos , Neoplasias Unilaterais da Mama/radioterapia
7.
Clin Ter ; 172(4): 260-263, 2021 Jul 05.
Artigo em Inglês | MEDLINE | ID: mdl-34247206

RESUMO

ABSTRACT: Nasopharyngeal carcinoma, one of the most common head and neck cancers in Southeast Asia, is uncommon in Western countries and it is frequently diagnosed in advanced stage. Chemotherapy given with radiation therapy, followed by more chemotherapy, is the standard of care of stage IV nasopharyngeal carcinoma but Cetuximab, an epidermal growth factor (EGFR) inhibitor, is now making its way in the treatment of locoregionally advanced nasopharyngeal carcinoma. We report a case of 58 years old patient with metastatic nasopharyngeal carcinoma with an astonishing response to Cetuximab. At the time of writing, the patient is still in treatment with Cetuximab with excellent disease control.


Assuntos
Protocolos de Quimioterapia Combinada Antineoplásica/uso terapêutico , Cetuximab/uso terapêutico , Cisplatino/uso terapêutico , Fluoruracila/uso terapêutico , Carcinoma Nasofaríngeo/tratamento farmacológico , Neoplasias Nasofaríngeas/tratamento farmacológico , Metástase Neoplásica/tratamento farmacológico , Humanos , Masculino , Pessoa de Meia-Idade , Resultado do Tratamento
8.
Artigo em Inglês, Espanhol | MEDLINE | ID: mdl-33419672

RESUMO

BACKGROUND: The use of plate fixation to treat displaced midshaft clavicular fractures in adults reduces complications and residual shoulder disability. New features of the precontoured locking plates have been shown to reduce the need for hardware removal in adults. There is a lack of studies evaluating surgical fixation of displaced clavicular fractures with precontoured plates in adolescents. We evaluate outcomes and complications of adolescents with displaced midshaft clavicular fractures treated with precontoured locking plates. MATERIALS AND METHODS: 40 adolescents with displaced midshaft clavicular fractures were surgically treated from January 2010 to May 2017. Outcomes were evaluated using the Constant score, the 11- item version of the Disabilities of Arm, Shoulder and Hand (QuickDASH) questionnaires, and radiographs, and a visual analog scale. Return-to-sport rate, level achieved, and complications were recorded. RESULTS: Mean follow-up was 50 months (18 - 108 months). Constant, Quick-DASH, and visual analog scale scores were 95.6, 2.8 and 0.5 points, respectively. 100% of adolescents returned to sports at the same level they had before injury. Mean time to return was 69 days and 95% of patients were able to return before 12 weeks. Complication rate was 12.5%, 3 patients (7.5%) required hardware removal. CONCLUSIONS: Adolescents with displaced midshaft clavicular fractures treated with precontoured locking plates exhibited satisfactory outcomes and low complication rate. Compared to other reports, this study had lower rates, anatomic plates might reduce hardware-related complications.

9.
Animal ; 15(1): 100064, 2021 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-33516022

RESUMO

Natural extracts are frequently adopted as a valuable alternative to antibiotics in intensive animal farming. Their diverse bioactive constituents such as phytosterols, glucosinolates, carotenoids and polyphenols have shown antioxidant, anti-inflammatory and antibacterial effects. Tannins are the largest class of polyphenol compounds of plant extracts, which can be classified into two hydrolysable or condensed subgroups. Poultry and swine nutrition are the most important sectors in which tannins have been used, firstly adopting tannin-rich feedstuffs and more recently, using tannin extracts from different plants. Several commercial products are available containing tannins extracted from the European chestnut tree (Castanea sativa Mill.) and the American quebracho (Schinopsis spp.). Tannins extracted from these plants have been applied on intensive swine farms due to their ability to improve animal performance and health. These positive and prominent effects are frequently associated with the antinutritional effects in reducing feed palatability, digestibility and protein utilization of feed. Some criticisms and contrasting results regarding pig performance and intestinal health have been reported. This paper provides an overview of the effects of chestnut and quebracho tannins on growth performance and intestinal health of pigs in order to clarify the appropriate dosage and response in the various physiological stages.


Assuntos
Anacardiaceae , Fagaceae , Animais , Dieta , Extratos Vegetais/farmacologia , Suínos , Taninos
10.
Nature ; 588(7839): 648-652, 2020 12.
Artigo em Inglês | MEDLINE | ID: mdl-33177719

RESUMO

The selectivity of neuronal responses arises from the architecture of excitatory and inhibitory connections. In the primary visual cortex, the selectivity of a neuron in layer 2/3 for stimulus orientation and direction is thought to arise from intracortical inputs that are similarly selective1-8. However, the excitatory inputs of a neuron can have diverse stimulus preferences1-4,6,7,9, and inhibitory inputs can be promiscuous10 and unselective11. Here we show that the excitatory and inhibitory intracortical connections to a layer 2/3 neuron accord with its selectivity by obeying precise spatial patterns. We used rabies tracing1,12 to label and functionally image the excitatory and inhibitory inputs to individual pyramidal neurons of layer 2/3 of the mouse visual cortex. Presynaptic excitatory neurons spanned layers 2/3 and 4 and were distributed coaxial to the preferred orientation of the postsynaptic neuron, favouring the region opposite to its preferred direction. By contrast, presynaptic inhibitory neurons resided within layer 2/3 and favoured locations near the postsynaptic neuron and ahead of its preferred direction. The direction selectivity of a postsynaptic neuron was unrelated to the selectivity of presynaptic neurons, but correlated with the spatial displacement between excitatory and inhibitory presynaptic ensembles. Similar asymmetric connectivity establishes direction selectivity in the retina13-17. This suggests that this circuit motif might be canonical in sensory processing.


Assuntos
Vias Neurais , Células Piramidais/fisiologia , Córtex Visual/citologia , Córtex Visual/fisiologia , Animais , Potenciais Pós-Sinápticos Excitadores , Feminino , Potenciais Pós-Sinápticos Inibidores , Masculino , Camundongos , Inibição Neural , Técnicas de Rastreamento Neuroanatômico , Terminações Pré-Sinápticas/fisiologia , Vírus da Raiva/metabolismo , Receptores Virais/metabolismo , Retina/citologia , Retina/fisiologia , Proteínas do Envelope Viral/genética , Proteínas do Envelope Viral/metabolismo
11.
Bone Joint J ; 101-B(8): 891-896, 2019 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-31362555

RESUMO

There is good scientific rationale to support the use of growth factors to promote musculoskeletal tissue regeneration. However, the clinical effectiveness of platelet-rich plasma (PRP) and other blood-derived products has yet to be proven. Characterization and reporting of PRP preparation protocols utilized in clinical trials for the treatment of musculoskeletal disease is highly inconsistent, and the majority of studies do not provide sufficient information to allow the protocols to be reproduced. Furthermore, the reporting of blood-derived products in orthopaedics is limited by the multiple PRP classification systems available, which makes comparison of results between studies challenging. Several attempts have been made to characterize and classify PRP; however, no consensus has been reached, and there is lack of a comprehensive and validated classification. In this annotation, we outline existing systems used to classify preparations of PRP, highlighting their advantages and limitations. There remains a need for standardized universal nomenclature to describe biological therapies, as well as a comprehensive and reproducible classification system for autologous blood-derived products. Cite this article: Bone Joint J 2019;101-B:891-896.


Assuntos
Regeneração Tecidual Guiada/métodos , Doenças Musculoesqueléticas/terapia , Procedimentos Ortopédicos/métodos , Plasma Rico em Plaquetas , Consenso , Humanos , Guias de Prática Clínica como Assunto , Terminologia como Assunto
12.
Phys Med Biol ; 64(16): 165013, 2019 08 21.
Artigo em Inglês | MEDLINE | ID: mdl-31039556

RESUMO

Segmentation can degrade a high-quality dose distribution obtained by fluence map optimisation (FMO). A novel algorithm is proposed for generation of MLC segments to deliver an FMO plan with step-and-shoot IMRT while minimising quality loss. All beams are considered simultaneously while generating MLC segments for reproducing the 3D FMO dose distribution. Segment generation is only steered by the 3D FMO dose distribution, i.e. underlying FMO fluence profiles are not considered. The algorithm features prioritised generation of segments, focusing on accurate reproduction of clinical objectives with the highest priorities. The performance of the segmentation algorithm was evaluated for 20 prostate patients, 15 head-and-neck patients, and 12 liver patients. FMO dose distributions were generated by automated multi-criteria treatment planning (Pareto-optimal plans) and subsequently segmented using the proposed method. Various segmentation strategies were investigated regarding prioritisation of objectives and limitation of the number of segments. Segmented plans were dosimetrically similar to FMO plans and for all patients a clinically acceptable segmented plan could be generated. Substantial differences between FMO and segmented fluence profiles were observed. Avoidance of the usual reconstruction of 2D FMO fluence profiles for segment generation, and instead simultaneously generating segments for all beams to directly reproduce the 3D FMO dose distribution is a likely explanation for the obtained results. For the strategies of limiting the number of segments large reductions in number of segments were observed with minimal impact on plan quality.


Assuntos
Doses de Radiação , Planejamento da Radioterapia Assistida por Computador/métodos , Radioterapia de Intensidade Modulada , Algoritmos , Automação , Humanos , Masculino , Neoplasias/radioterapia , Radiometria , Dosagem Radioterapêutica
13.
Gynecol Obstet Fertil Senol ; 47(6): 497-503, 2019 06.
Artigo em Francês | MEDLINE | ID: mdl-31003015

RESUMO

OBJECTIVES: Lynch syndrome (LS) is a hereditary predisposition to cancers, first of all, colo-rectal and endometrial cancers in women. Although recommended, gynecologic screening has never proven its benefit. Prophylactic surgery can be considered once the parental project is completed. There are few data regarding the assessment of prophylactic surgery. The objectives of our study were to evaluate the feasibility and morbidity of prophylactic hysterectomy in patients with Lynch syndrome. METHODS: This is a descriptive retrospective study of consecutive patients with LS undergoing prophylactic hysterectomy at the Georges-Pompidou European Hospital from 2002 to 2016. We collected demographic characteristics, results of preoperative assessment, intra- and postoperative data, final pathologic result as well as postoperative follow-up data. RESULTS: Forty patients were included in the study, and seventeen women had a history of colon cancer surgery. All hysterectomies were performed by laparoscopy, with two cases of laparoconversion. Two intraoperative complications occurred: serosal small bowel injuries and superficial bladder injury. Two early postoperative complications occurred (a peritonitis on small bowel perforation and a peritonitis on left ureteral injury) and two late complications (vesico-vaginal fistula and adhesive small bowel obstruction). All operative specimens were benign. With a median follow-up of 28 months [5-52], no patient had peritoneal cancer. CONCLUSIONS: Our study shows that prophylactic hysterectomy in Lynch syndrome should be done with caution. Per and postoperative complication rates appear to be higher than in general population, probably related to a more frequent history of colorectal cancer. However, total hysterectomy with bilateral salpingo-oophorectomy appears to be an effective strategy for preventing gynecological cancers in women with the Lynch syndrome.


Assuntos
Neoplasias Colorretais Hereditárias sem Polipose/cirurgia , Histerectomia , Procedimentos Cirúrgicos Profiláticos , Neoplasias Colorretais/genética , Neoplasias Colorretais/cirurgia , Neoplasias Colorretais Hereditárias sem Polipose/genética , Neoplasias do Endométrio/genética , Estudos de Viabilidade , Feminino , Predisposição Genética para Doença , Humanos , Histerectomia/efeitos adversos , Complicações Intraoperatórias/epidemiologia , Laparoscopia/efeitos adversos , Pessoa de Meia-Idade , Complicações Pós-Operatórias/epidemiologia , Procedimentos Cirúrgicos Profiláticos/efeitos adversos , Estudos Retrospectivos , Salpingo-Ooforectomia
14.
Artigo em Inglês, Espanhol | MEDLINE | ID: mdl-30503809

RESUMO

OBJECTIVE: The aim of this study was to report the short-term results and complications of partial humeral head resurfacing (HemiCup®) in patients treated by avascular necrosis. MATERIAL AND METHODS: Between 2010 and 2014, 9 patients who underwent partial resurfacing of humeral head were evaluated. All the patients were treated by avascular necrosis. The mean follow-up was 44 months (minimum 24 months). The average age was 47 years (range 32-57 years). The patients were evaluated clinically and radiologically. Complications were reported. RESULTS: The patients had a significant improvement in functional scores and mobility between the pre-operative and last follow-up control. The Constant score improved from 35 to 79 points (P<.001), ASES score improved from 31 to 76 points (P<.001), forward flexion and external rotation improved from 101 to 150° (P<.001), and from 24 to 45° (P<.001), respectively. One patient presented symptomatic glenoid wear during follow-up, requiring revision surgery. CONCLUSION: In our patients treated by avascular necrosis, the partial resurfacing of humeral head (HemiCup®) demonstrated a significant improvement in functional scores and mobility with an average follow-up of 44 months.


Assuntos
Artroplastia do Ombro/métodos , Hemiartroplastia/métodos , Cabeça do Úmero/cirurgia , Osteonecrose/cirurgia , Adulto , Artroplastia do Ombro/instrumentação , Feminino , Seguimentos , Hemiartroplastia/instrumentação , Humanos , Masculino , Pessoa de Meia-Idade , Prótese de Ombro , Resultado do Tratamento
15.
Gynecol Obstet Fertil ; 44(9): 517-25, 2016 Sep.
Artigo em Francês | MEDLINE | ID: mdl-27568405

RESUMO

Radical hysterectomy (RH) is an effective treatment for early-stage cervical cancer IA2 to IIA1 but RH is often associated with several significant complications such as urinary, anorectal and sexual dysfunction due to pelvic nerve injuries. Pelvic autonomic nerves including the superior hypogastric plexus (SHP), hypogastric nerves (HN), pelvic splanchnic nerves (PSN), sacral splanchnic nerves (SSN), inferior hypogastric plexus (IHP) and efferent branches of the IHP. We aimed to precise the neuroanatomy of the female pelvis in order to provide key-points of surgical anatomy to improve NSRH for cervical cancer. The SHP could be injured during periaortic lymph node dissection and its preservation necessitates an approach on the right side of the aorta and a blunt dissection of the promontory before lomboaortic lymphadenectomy. Injuries to HN can occur during the resection of USL at the posterior pelvic wall and of rectovaginal ligaments and to preserve HN only the medial fibrous part of the uterosacral ligament should be resected. The middle rectal artery, the deep uterine vein and the ureter should be identified to preserve PSN and IHP during resection of paracervix. Vesical branches can be preserved by blunt dissection of the posterior layer of the vesicouterine ligament after identifying the inferior vesical vein. In most of cases, NSRH for cervical cancer can be performed. Anatomical landmarks as middle rectal artery, deep uterine vein, inferior vesical vein and ureter and the respect of nervous part of uterine ligament and of parametrium provide to surgeon a safe preservation of pelvic innervation without compromising oncological outcomes.


Assuntos
Histerectomia/métodos , Pelve/inervação , Traumatismos dos Nervos Periféricos/prevenção & controle , Neoplasias do Colo do Útero/cirurgia , Sistema Nervoso Autônomo/lesões , Feminino , Humanos , Plexo Hipogástrico/lesões , Nervos Esplâncnicos/lesões , Resultado do Tratamento , Útero/irrigação sanguínea , Útero/inervação
16.
Metallomics ; 8(9): 863-73, 2016 09 01.
Artigo em Inglês | MEDLINE | ID: mdl-27499330

RESUMO

ATP7B, a protein mainly expressed in the hepatocytes, is a copper chaperone that loads the metal into the serum copper-protein ceruloplasmin during its synthesis and also escorts superfluous copper into the bile, by a sophisticated trafficking mechanism. Impaired function of this ATPase is associated with a well-known inborn error of copper metabolism, Wilson's disease (WD). Several mutations of ATP7B are known, involving different regions of the protein, thus resulting in a plethora of phenotypes in WD patients. It is a consolidated notion that copper dysmetabolism occurs in Alzheimer's disease (AD) as well. Besides the molecular mechanisms relating copper to the protein hallmarks of this disease and neurodegeneration, more recently the observation that a free-copper in the serum, not bound to ceruloplasmin (non-Cp-Cu), characterizes AD patients, prompted our research to identify possible genetic defects of the ATP7B gene in AD patients. Four specific single nucleotide polymorphisms and a WD rare mutation have a statistical association with AD. They contribute to characterize a copper subtype of AD. Additional facets of this AD phenotype, typified by higher levels of non-Cp-Cu, are presented and discussed in the framework of copper failure as an accelerator risk factor of neurological disorders with different aetiology.


Assuntos
Doença de Alzheimer/genética , Doença de Alzheimer/patologia , Ceruloplasmina , ATPases Transportadoras de Cobre/genética , Cobre/metabolismo , Polimorfismo de Nucleotídeo Único , Doença de Alzheimer/metabolismo , Humanos
17.
J Endocrinol Invest ; 39(9): 1055-9, 2016 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-27129982

RESUMO

PURPOSE: The extent of surgery for pediatric papillary thyroid carcinoma is debatable. The aim of this study was to evaluate the feasibility of offering pediatric patients a tailored surgical approach based on certain clinical features. METHODS: A national multicenter retrospective review of 250 pediatric patients treated for papillary thyroid carcinoma in a 14-year period was performed. Outcomes of interest included tumor-related features, type of surgery, surgical morbidity, disease-free and overall survival rates. Recurrence was thoroughly analyzed with particular focus on how it correlated with certain patient- and tumor-related features. RESULTS: The majority of patients (58.8 %) had tumors >2 cm in size. Nodal involvement occurred in 115/250 (46 %) patients and distant metastasis in 4 % (10/250). Total thyroidectomy and lobectomy were performed in 90.4 % (226/250) and 9.6 % (24/250) of patients, respectively. The overall rate of surgical complications was 20.8 % (52/250). These included transient and permanent hypoparathyroidism (13.6 and 4.4 %, respectively), and vocal fold palsy (2.8 %). All surgical complications occurred exclusively in the total thyroidectomy group. The rate of recurrent disease was 12 % (30/250) with the vast majority of recurrences (96.6 %) occurring in the total thyroidectomy group. The risk of recurrence correlated significantly with certain tumor-related features (size > 2 cm, multifocality, extrathyroidal invasion, nodal positivity, and distant metastasis). However, it did not correlate with the patient's age or sex. Overall survival was 100 %. CONCLUSION: Pediatric patients are likely to benefit from a tailored surgical strategy. Uniformly offering patients total thyroidectomy seems to be an overly radical approach.


Assuntos
Carcinoma Papilar/cirurgia , Recidiva Local de Neoplasia/cirurgia , Neoplasias da Glândula Tireoide/cirurgia , Tireoidectomia , Adolescente , Criança , Pré-Escolar , Gerenciamento Clínico , Feminino , Humanos , Itália , Masculino , Estudos Retrospectivos
18.
J Gynecol Obstet Biol Reprod (Paris) ; 45(5): 467-77, 2016 May.
Artigo em Francês | MEDLINE | ID: mdl-26897467

RESUMO

OBJECTIVES: To achieve a 3D vectorial model of a female pelvis by Computer-Assisted Anatomical Dissection and to assess educationnal and surgical applications. MATERIALS AND METHOD: From the database of "visible female" of Visible Human Project(®) (VHP) of the "national library of medicine" NLM (United States), we used 739 transverse anatomical slices of 0.33mm thickness going from L4 to the trochanters. The manual segmentation of each anatomical structures was done with Winsurf(®) software version 4.3. Each anatomical element was built as a separate vectorial object. The whole colored-rendered vectorial model with realistic textures was exported in 3Dpdf format to allow a real time interactive manipulation with Acrobat(®) pro version 11 software. RESULTS: Each element can be handled separately at any transparency, which allows an anatomical learning by systems: skeleton, pelvic organs, urogenital system, arterial and venous vascularization. This 3D anatomical model can be used as data bank to teach of the fundamental anatomy. CONCLUSION: This 3D vectorial model, realistic and interactive constitutes an efficient educational tool for the teaching of the anatomy of the pelvis. 3D printing of the pelvis is possible with the new printers.


Assuntos
Instrução por Computador , Dissecação , Imageamento Tridimensional , Modelos Anatômicos , Pelve/anatomia & histologia , Osso e Ossos/anatomia & histologia , Feminino , Procedimentos Cirúrgicos em Ginecologia/educação , Ginecologia/educação , Humanos , Pessoa de Meia-Idade , Músculos/anatomia & histologia , National Library of Medicine (U.S.) , Pelve/irrigação sanguínea , Estados Unidos , Vísceras/anatomia & histologia
19.
Org Biomol Chem ; 14(6): 2015-24, 2016 Feb 14.
Artigo em Inglês | MEDLINE | ID: mdl-26754878

RESUMO

Herein, we disclose a general and flexible access to spirocyclopropyl oxindoles by a domino Michael/intramolecular nucleophilic substitution pathway with variously substituted vinyl selenones and enolizable oxindoles in aqueous sodium hydroxide solution. The spirocyclopropyl oxindole being a privileged scaffold, some of the synthesized compounds were selected for biological evaluation. Compound showed selective anti-HIV-1 activity thanks to its ability to inhibit the reverse transcriptase.


Assuntos
Fármacos Anti-HIV/farmacologia , Transcriptase Reversa do HIV/antagonistas & inibidores , HIV/efeitos dos fármacos , HIV/enzimologia , Inibidores da Transcriptase Reversa/farmacologia , Fármacos Anti-HIV/síntese química , Fármacos Anti-HIV/química , Linhagem Celular Tumoral , Sobrevivência Celular/efeitos dos fármacos , Ciclopropanos/síntese química , Ciclopropanos/química , Ciclopropanos/farmacologia , Transcriptase Reversa do HIV/metabolismo , Humanos , Indóis/síntese química , Indóis/química , Indóis/farmacologia , Testes de Sensibilidade Microbiana , Conformação Molecular , Compostos Organosselênicos/química , Compostos Organosselênicos/farmacologia , Inibidores da Transcriptase Reversa/síntese química , Inibidores da Transcriptase Reversa/química , Compostos de Espiro/síntese química , Compostos de Espiro/química , Compostos de Espiro/farmacologia , Compostos de Vinila/química , Compostos de Vinila/farmacologia , Replicação Viral/efeitos dos fármacos
20.
J Endocrinol Invest ; 39(5): 529-35, 2016 May.
Artigo em Inglês | MEDLINE | ID: mdl-26403983

RESUMO

BACKGROUND AND AIMS: Branchial abnormalities occur when there is disturbance in the maturation of the branchial apparatus during fetal development. Branchial anomalies are congenital lesions usually present in childhood, even if they can be diagnosed later for enlargement or infection. A correct diagnosis will lead to proper management: complete surgical excision is the treatment of choice. The purpose of this article is to present clinical features, diagnostic methods and surgical treatment of branchial anomalies in childhood, based on a series of 50 patients. METHODS: We conducted a retrospective analysis of a total of 50 pediatric patients operated from June 2005 to June 2014 for the presence of branchial cleft anomalies. RESULTS: 27 cases (54 %) presented a second branchial cleft fistula and 11 cases (22 %) a second branchial cleft cyst and one case (2 %) presented both cyst and sinus of the second branchial cleft; four cases (8 %) presented first branchial cleft cyst whereas four cases (8 %) a first branchial cleft sinus and two cases (4 %) a first branchial cleft fistula; one case (2 %) presented a piriform sinus fistula (third branchial cleft). None of our patients presented anomalies of the fourth branchial cleft. All patients underwent surgical treatment and lesions have been removed by excision or fistulectomy. No post-surgical complication occurred. The rate of recurrence was 4 %. CONCLUSIONS: Pre-operative diagnosis supplies important information to the surgeon for a proper therapy: a complete excision of the lesion without inflammatory signs is essential to avoid re-intervention and to achieve a good outcome.


Assuntos
Região Branquial/anormalidades , Anormalidades Congênitas/epidemiologia , Anormalidades Craniofaciais/epidemiologia , Fístula/epidemiologia , Doenças Faríngeas/epidemiologia , Adolescente , Região Branquial/cirurgia , Criança , Pré-Escolar , Anormalidades Congênitas/diagnóstico , Anormalidades Congênitas/cirurgia , Anormalidades Craniofaciais/diagnóstico , Anormalidades Craniofaciais/cirurgia , Feminino , Fístula/congênito , Fístula/cirurgia , Humanos , Lactente , Itália/epidemiologia , Doenças Faríngeas/diagnóstico , Doenças Faríngeas/cirurgia , Estudos Retrospectivos
SELEÇÃO DE REFERÊNCIAS
DETALHE DA PESQUISA