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1.
Eur J Oncol Nurs ; 70: 102614, 2024 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-38795448

RESUMEN

PURPOSE: To identify, analyze and describe the available scientific evidence about the influence of social determinants of health on cancer survivors. METHODS: A scoping review was outlined according to the steps described by the Joanna Brigs Institute Reviewer's Manual: selection of studies, data mapping, and results grouping, synthesis and report, was conducted. PubMed, CINAHL, Scopus and LILACS databases were searched from 2011 to 2023. RESULTS: Out of a total of 1783 papers initially screened, only 19 studies met the inclusion criteria for the scoping review, focusing on the primary social determinants impacting the health of cancer survivors. These studies were categorized into six main themes: a) employment (challenges in work reintegration and work-place difficulties); b) variations among different ethnic groups; c) disparities based on sex; d) barriers and facilitators in accessing health and social security services; e) the role of support networks and social environments; and f) socioeconomic lever (influence of income and socioeconomic status). CONCLUSIONS: Understanding the impact of social determinants on the post-treatment quality of life for cancer survivors is crucial. Comprehensive survivorship care should address not just medical needs but also holistic aspects like social support, education, overall well-being, and improvements in physical and social environments. This multifaceted approach ensures the well-rounded support needed for optimal survivorship outcomes.


Asunto(s)
Supervivientes de Cáncer , Determinantes Sociales de la Salud , Humanos , Supervivientes de Cáncer/psicología , Calidad de Vida , Apoyo Social , Neoplasias/terapia , Neoplasias/psicología , Masculino , Factores Socioeconómicos , Femenino , Empleo
2.
J Natl Compr Canc Netw ; 22(2D)2024 May 15.
Artículo en Inglés | MEDLINE | ID: mdl-38749478

RESUMEN

BACKGROUND: Internet-based health education is increasingly vital in patient care. However, the readability of online information often exceeds the average reading level of the US population, limiting accessibility and comprehension. This study investigates the use of chatbot artificial intelligence to improve the readability of cancer-related patient-facing content. METHODS: We used ChatGPT 4.0 to rewrite content about breast, colon, lung, prostate, and pancreas cancer across 34 websites associated with NCCN Member Institutions. Readability was analyzed using Fry Readability Score, Flesch-Kincaid Grade Level, Gunning Fog Index, and Simple Measure of Gobbledygook. The primary outcome was the mean readability score for the original and artificial intelligence (AI)-generated content. As secondary outcomes, we assessed the accuracy, similarity, and quality using F1 scores, cosine similarity scores, and section 2 of the DISCERN instrument, respectively. RESULTS: The mean readability level across the 34 websites was equivalent to a university freshman level (grade 13±1.5). However, after ChatGPT's intervention, the AI-generated outputs had a mean readability score equivalent to a high school freshman education level (grade 9±0.8). The overall F1 score for the rewritten content was 0.87, the precision score was 0.934, and the recall score was 0.814. Compared with their original counterparts, the AI-rewritten content had a cosine similarity score of 0.915 (95% CI, 0.908-0.922). The improved readability was attributed to simpler words and shorter sentences. The mean DISCERN score of the random sample of AI-generated content was equivalent to "good" (28.5±5), with no significant differences compared with their original counterparts. CONCLUSIONS: Our study demonstrates the potential of AI chatbots to improve the readability of patient-facing content while maintaining content quality. The decrease in requisite literacy after AI revision emphasizes the potential of this technology to reduce health care disparities caused by a mismatch between educational resources available to a patient and their health literacy.


Asunto(s)
Inteligencia Artificial , Comprensión , Alfabetización en Salud , Internet , Neoplasias , Humanos , Alfabetización en Salud/métodos , Alfabetización en Salud/normas , Educación del Paciente como Asunto/métodos , Educación del Paciente como Asunto/normas , Información de Salud al Consumidor/normas , Información de Salud al Consumidor/métodos
3.
Arch Prev Riesgos Labor ; 27(1)2024 Jan 17.
Artículo en Español | MEDLINE | ID: mdl-38655605

RESUMEN

Un año más, mediante esta nota editorial, damos cuenta de las estadísticas y los principales avances de nuestra revista. En cuanto a las estadísticas editoriales, que se detallan en los apartados posteriores, podemos afirmar que son las de una revista consolidada: flujo nutrido y constante de trabajos recibidos/publicados, tasas de aceptación y rechazo proporcionadas, tiempos de gestión razonables y diversidad en las autorías. El logro más destacable del 2023 fue superar con éxito el proceso de evaluación de la Octava edición de Evaluación de la calidad editorial y científica de las revistas científicas españolas, comúnmente conocido como 'Sello FECYT'….


Asunto(s)
Publicaciones Periódicas como Asunto , Publicaciones Periódicas como Asunto/normas , España , Edición/normas
4.
Microsurgery ; 44(4): e31178, 2024 May.
Artículo en Inglés | MEDLINE | ID: mdl-38661385

RESUMEN

BACKGROUND: Transfer of the fascicle carrying the flexor carpi ulnaris (FCU) branch of the ulnar nerve (UN) to the biceps/brachialis muscle branch of the musculocutaneous nerve (Oberlin's procedure), is a mainstay technique for elbow flexion restoration in patients with upper brachial plexus injury. Despite its widespread use, there are few studies regarding the anatomic location of the donor fascicle for Oberlin's procedure. Our report aims to analyze the anatomical variability of this fascicle within the UN, while obtaining quantifiable, objective data with intraoperative neuromonitoring (IONM) for donor fascicle selection. METHODS: We performed a retrospective review of patients at our institution who underwent an Oberlin's procedure from September 2019 to July 2023. We used IONM for donor fascicle selection (greatest FCU muscle and least intrinsic hand muscle activation). We prospectively obtained demographic and electrophysiological data, as well as anatomical location of donor fascicles and post-surgical morbidities. Surgeon's perception of FCU/intrinsic muscle contraction was compared to objective muscle amplitude during IONM. RESULTS: Eight patients were included, with a mean age of 30.5 years and an injury-to-surgery interval of 4 months. Donor fascicle was located anterior in two cases, posterior in two, radial in two and ulnar in two patients. Correlation between surgeon's perception and IONM findings were consistent in six (75%) cases. No long term motor or sensory deficits were registered. CONCLUSIONS: Fascicle anatomy within the UN at the proximal arm is highly variable. The use of IONM can aid in optimizing donor fascicle selection for Oberlin's procedure.


Asunto(s)
Monitorización Neurofisiológica Intraoperatoria , Transferencia de Nervios , Nervio Cubital , Humanos , Estudios Retrospectivos , Adulto , Masculino , Femenino , Nervio Cubital/cirugía , Nervio Cubital/anatomía & histología , Transferencia de Nervios/métodos , Monitorización Neurofisiológica Intraoperatoria/métodos , Plexo Braquial/anatomía & histología , Plexo Braquial/cirugía , Plexo Braquial/lesiones , Músculo Esquelético , Adulto Joven , Neuropatías del Plexo Braquial/cirugía , Persona de Mediana Edad
5.
Cell Rep ; 43(4): 114103, 2024 Apr 23.
Artículo en Inglés | MEDLINE | ID: mdl-38607920

RESUMEN

Hypoxia-inducible factor-1α (HIF1α) attenuates mitochondrial activity while promoting glycolysis. However, lower glycolysis is compromised in human clear cell renal cell carcinomas, in which HIF1α acts as a tumor suppressor by inhibiting cell-autonomous proliferation. Here, we find that, unexpectedly, HIF1α suppresses lower glycolysis after the glyceraldehyde 3-phosphate dehydrogenase (GAPDH) step, leading to reduced lactate secretion in different tumor cell types when cells encounter a limited pyruvate supply such as that typically found in the tumor microenvironment in vivo. This is because HIF1α-dependent attenuation of mitochondrial oxygen consumption increases the NADH/NAD+ ratio that suppresses the activity of the NADH-sensitive GAPDH glycolytic enzyme. This is manifested when pyruvate supply is limited, since pyruvate acts as an electron acceptor that prevents the increment of the NADH/NAD+ ratio. Furthermore, this anti-glycolytic function provides a molecular basis to explain how HIF1α can suppress tumor cell proliferation by increasing the NADH/NAD+ ratio.


Asunto(s)
Proliferación Celular , Glucólisis , Subunidad alfa del Factor 1 Inducible por Hipoxia , NAD , Humanos , Subunidad alfa del Factor 1 Inducible por Hipoxia/metabolismo , NAD/metabolismo , Línea Celular Tumoral , Mitocondrias/metabolismo , Animales , Ácido Pirúvico/metabolismo , Ácido Láctico/metabolismo , Neoplasias/metabolismo , Neoplasias/patología , Ratones
6.
J Am Chem Soc ; 146(17): 11599-11604, 2024 May 01.
Artículo en Inglés | MEDLINE | ID: mdl-38651661

RESUMEN

Herein, we report a photoredox nucleophilic (radio)fluorination using TEMPO-derived alkoxyamines, a class of substrates accessible in a single step from a diversity of readily available carboxylic acids, halides, alkenes, alcohols, aldehydes, boron reagents, and C-H bonds. This mild and versatile one-electron pathway affords radiolabeled aliphatic fluorides that are typically inaccessible applying conventional nucleophilic substitution technologies due to insufficient reactivity and competitive elimination. Automation of this photoredox process is also demonstrated with a user-friendly and commercially available photoredox flow reactor and radiosynthetic platform, therefore expediting access to labeled aliphatic fluorides in high molar activity (Am) for (pre)clinical evaluation.

7.
J Plast Reconstr Aesthet Surg ; 93: 83-91, 2024 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-38678814

RESUMEN

BACKGROUND: We have recently described circumferential nerve involvement of neuromuscular choristoma associated with desmoid-type fibromatosis (NMC-DTF) in cases involving the sciatic nerve, supporting a nerve-derived mechanism for the DTF. We wondered whether a similar growth pattern occurs in cases involving the brachial plexus (BP). METHODS: We reviewed all available magnetic resonance (MR) imaging in patients diagnosed at our institution with NMC or NMC-DTF of the BP. We also performed a literature search of patients with NMC or NMC-DTF of the BP. RESULTS: In our clinical records, four patients with NMC of the BP were identified, and three developed NMC-DTF. All three patients had MR imaging evidence of circumferential encasement of the BP. In the literature, we identified 15 cases of NMC of the BP, of which 12 had identified NMC-DTF. Four published cases included MR images, and only two were of sufficient quality for review. The single provided image in both cases demonstrated a similar pattern of circumferential encasement of the BP by the NMC-DTF. One additional case report was published without MR images but described circumferential involvement in the surgical findings. One unpublished case of NMC-DTF of the BP from an international radiology meeting also had this circumferential pattern pattern on MRI. CONCLUSIONS: The MRI findings of circumferential nerve involvement in patients with NMC-DTF of the BP are similar to our previously reported data in patients with NMC-DTF of the sciatic nerve, providing further imaging-based support of a nerve-driven mechanism. Clinical implications are presented based on the proposed pathogenetic mechanism.


Asunto(s)
Plexo Braquial , Coristoma , Fibromatosis Agresiva , Imagen por Resonancia Magnética , Humanos , Fibromatosis Agresiva/complicaciones , Fibromatosis Agresiva/cirugía , Imagen por Resonancia Magnética/métodos , Femenino , Coristoma/complicaciones , Masculino , Adulto , Persona de Mediana Edad
8.
Surg Endosc ; 38(5): 2553-2561, 2024 May.
Artículo en Inglés | MEDLINE | ID: mdl-38488870

RESUMEN

BACKGROUND: Minimally invasive surgery provides an unprecedented opportunity to review video for assessing surgical performance. Surgical video analysis is time-consuming and expensive. Deep learning provides an alternative for analysis. Robotic pancreaticoduodenectomy (RPD) is a complex and morbid operation. Surgeon technical performance of pancreaticojejunostomy (PJ) has been associated with postoperative pancreatic fistula. In this work, we aimed to utilize deep learning to automatically segment PJ RPD videos. METHODS: This was a retrospective review of prospectively collected videos from 2011 to 2022 that were in libraries at tertiary referral centers, including 111 PJ videos. Each frame of a robotic PJ video was categorized based on 6 tasks. A 3D convolutional neural network was trained for frame-level visual feature extraction and classification. All the videos were manually annotated for the start and end of each task. RESULTS: Of the 100 videos assessed, 60 videos were used for the training the model, 10 for hyperparameter optimization, and 30 for the testing of performance. All the frames were extracted (6 frames/second) and annotated. The accuracy and mean per-class F1 scores were 88.01% and 85.34% for tasks. CONCLUSION: The deep learning model performed well for automated segmentation of PJ videos. Future work will focus on skills assessment and outcome prediction.


Asunto(s)
Aprendizaje Profundo , Pancreatoyeyunostomía , Procedimientos Quirúrgicos Robotizados , Humanos , Procedimientos Quirúrgicos Robotizados/métodos , Pancreatoyeyunostomía/métodos , Estudios Retrospectivos , Pancreaticoduodenectomía/métodos , Grabación en Video
9.
Res Sq ; 2024 Jan 19.
Artículo en Inglés | MEDLINE | ID: mdl-38313298

RESUMEN

Background: Cryptococcosis is a life-threatening disease caused by Cryptococcus neoformans or C. gattii. Autoantibodies (auto-Abs) neutralizing granulocyte-macrophage colony-stimulating factor (GM-CSF) in otherwise healthy adults with cryptococcal meningitis have been described since 2013. We searched for neutralizing auto-Abs in sera from Colombian patients with non-HIV related cryptococcosis in a retrospective national cohort collected from 1997 to 2016. Methods: We reviewed clinical and laboratory records and assessed the presence of neutralizing auto-Abs in 30 HIV (-) adults presenting cryptococcosis (13 by C. gattii, and 17 by C. neoformans). Results: We detected auto-Abs neutralizing GM-CSF in the plasma of 9 out of 13 (69%) patients infected with C. gattii and 1 out of 17 (6%) patients with C. neoformans. Conclusions: We report ten Colombian patients with cryptococcosis due to auto-Abs neutralizing GM-CSF. Nine of the ten patients were infected with C. gattii, and only one with C. neoformans.

10.
Foods ; 13(3)2024 Jan 24.
Artículo en Inglés | MEDLINE | ID: mdl-38338524

RESUMEN

This research aimed to assess the influence of red dragon fruit peels ratio (RDF-PR) from two species, Hylocereus hybridum (HH) and Hylocereus undatus (HU), and particle size (PS) on quality parameters of red dragon fruit peel powder (RDF-PP) and its further application in emulsified alpaca-based sausages as partial substitutes of pork-back fat. A three-level full factorial design (nine treatments) was employed to evaluate the effect of RDF-PR (HH(0%):HU(100%), HH(50%):HU(50%), and HH(100%):HU(0%)) and PS (499-297, 296-177, and <177 µm) on the dependent variables: L*, a*, b*, C, h°, water-holding capacity, oil-holding capacity, swelling capacity, pectin yield, degree of esterification (analysed through FT-IR), and crude fibre content. The data analysed through a response surface methodology showed that treatment one (T1) is the best with the optimised conditions at 100% HU RDF-PR and PS of <177 µm. The statistical validation of T1 exhibited the highest water-holding capacity (32.1 g/g peel), oil-holding capacity (2.20 g oil/g peel), and pectin yield (27.1%). A completely randomised design (four formulations) was then used to assess the effect of partial replacement of pork-back fat by T1 in emulsified alpaca-based sausages on the colourimetric, physicochemical, and texture properties (hardness, chewiness, cohesiveness, springiness, adhesiveness, and adhesive force). Likewise, a sensory hedonic scale was employed to evaluate the appearance, colour, odour, flavour, texture, and overall acceptability of sausages. The results revealed that 65.7% of pork-back fat content was successfully replaced compared with a control formulation. Additionally, F3 showed significantly (p < 0.05) better colourimetric, physicochemical, and textural characteristics, such as lower hardness (34.8 N) and chewiness (21.7 N) and higher redness (a* = 19.3) and C (22.9), compared to a control formulation. This research presents RDF-PP as a promising fat substitute for developing healthier, reduced-fat meat products using fibre-rich agroindustry by-products.

11.
Surgery ; 175(4): 1168-1175, 2024 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-38307784

RESUMEN

BACKGROUND: Within the past decade, minimally invasive pancreaticoduodenectomy has been increasingly adopted in high-volume cancer centers. Amid broader trends of a growing older population, the numbers of frail patients with cancer are expected to increase. In this study, we compared the postoperative outcomes of open pancreaticoduodenectomy and minimally invasive pancreaticoduodenectomy in frail patients with pancreatic ductal adenocarcinoma. METHODS: Using the pancreatectomy-targeted American College of Surgeons-National Surgical Quality Improvement Program database (2014-2021), we identified pancreaticoduodenectomy cases for pancreatic ductal adenocarcinoma. Patients with a modified frailty index ≥2 were considered frail. We performed 2:1 (open pancreaticoduodenectomy to minimally invasive pancreaticoduodenectomy) optimal pair propensity score matching for both patient- and disease-specific characteristics. We evaluated baseline covariate balance for homogeneity and assessed 30-day postoperative outcomes: complications, discharge destination, major morbidity, and mortality. RESULTS: We identified 3,143 frail patients who underwent pancreaticoduodenectomy for pancreatic ductal adenocarcinoma. Of those, 275 (9%) underwent minimally invasive pancreaticoduodenectomy. Minimally invasive pancreaticoduodenectomy was associated with a lower rate of any complications compared with open pancreaticoduodenectomy (43% vs 54%; P < .001), major morbidity (29% vs 35%; P = .042), and nonhome discharge (12% vs 17%; P = .022). When comparing the 2 minimally invasive pancreaticoduodenectomy approaches, robotic surgery was associated with fewer complications compared with laparoscopy (39% vs 51%; P = .040) and a lower mortality rate (1% vs 4%; P = .041) CONCLUSION: In frail patients with pancreatic cancer, minimally invasive pancreaticoduodenectomy was associated with better postoperative outcomes than open pancreaticoduodenectomy. This study builds on growing literature reporting that, when properly implemented, minimally invasive pancreaticoduodenectomy is associated with more favorable postoperative outcomes. Given the particularly high risk of complication in frail patients, implementing a preoperative frailty assessment can provide valuable insights to inform patient counseling.


Asunto(s)
Carcinoma Ductal Pancreático , Fragilidad , Laparoscopía , Neoplasias Pancreáticas , Procedimientos Quirúrgicos Robotizados , Humanos , Anciano , Pancreaticoduodenectomía/efectos adversos , Fragilidad/complicaciones , Anciano Frágil , Estudios Retrospectivos , Carcinoma Ductal Pancreático/cirugía , Procedimientos Quirúrgicos Robotizados/efectos adversos , Laparoscopía/efectos adversos , Complicaciones Posoperatorias/epidemiología , Complicaciones Posoperatorias/etiología , Complicaciones Posoperatorias/cirugía , Procedimientos Quirúrgicos Mínimamente Invasivos/efectos adversos
12.
Int J Mol Sci ; 25(2)2024 Jan 17.
Artículo en Inglés | MEDLINE | ID: mdl-38256216

RESUMEN

Regenerative Peripheral Nerve Interfaces (RPNIs) encompass neurotized muscle grafts employed for the purpose of amplifying peripheral nerve electrical signaling. The aim of this investigation was to undertake an analysis of the extant literature concerning animal models utilized in the context of RPNIs. A systematic review of the literature of RPNI techniques in animal models was performed in line with the PRISMA statement using the MEDLINE/PubMed and Embase databases from January 1970 to September 2023. Within the compilation of one hundred and four articles employing the RPNI technique, a subset of thirty-five were conducted using animal models across six distinct institutions. The majority (91%) of these studies were performed on murine models, while the remaining (9%) were conducted employing macaque models. The most frequently employed anatomical components in the construction of the RPNIs were the common peroneal nerve and the extensor digitorum longus (EDL) muscle. Through various histological techniques, robust neoangiogenesis and axonal regeneration were evidenced. Functionally, the RPNIs demonstrated the capability to discern, record, and amplify action potentials, a competence that exhibited commendable long-term stability. Different RPNI animal models have been replicated across different studies. Histological, neurophysiological, and functional analyses are summarized to be used in future studies.


Asunto(s)
Neovascularización Patológica , Animales , Ratones , Potenciales de Acción , Bases de Datos Factuales , Macaca , Modelos Animales
13.
Rev. esp. anestesiol. reanim ; 71(1): 28-33, Ene. 2024.
Artículo en Español | IBECS | ID: ibc-230172

RESUMEN

Desde hace años se realizan consultas y seguimiento de pacientes de forma no presencial. Durante la pandemia de COVID-19 diferentes sociedades han recomendado potenciar las consultas telemáticas. La consulta preanestésica no presencial es un acto médico que debe incluir los objetivos básicos de evaluación, preparación, información y obtención del consentimiento. Se debe disponer de medios y tiempo para realizarla. Al comienzo de la consulta debe identificarse el médico y el o los progenitores. La consulta preoperatoria no presencial es especialmente útil en niños ASA I y II que van a someterse a cirugías de bajo riesgo, a una reintervención o a procedimientos diagnósticos. Aquellos pacientes que requieran una exploración física, más allá de la posible de manera telemática, deberán citarse en la consulta presencial. El personal de enfermería puede participar de forma activa en este proceso siempre y cuando el anestesiólogo supervise todo el proceso, tome todas las decisiones sobre el procedimiento y sea el responsable de la información que se da a los padres y al niño, aclarando personalmente cualquier duda. El anestesiólogo debe informar del procedimiento, sus riesgos, incluidos los personalizados, y alternativas. Se registrará en la historia clínica que se ha informado, cuándo y a quién. EL anestesiólogo firmará el Consentimiento Informado haciendo figurar la fecha que da la información y los padres deberán firmarlo antes de la intervención.(AU)


Medical consult and follow-up of patients have been carried out remotely for years. During the COVID-19 pandemic, different societies have recommended promoting online consultations. The remote pre-anesthetic consultation is a medical act that must include the basic objectives of evaluation, preparation, information and obtaining consent. You must have the resources and time to do it. At the beginning of the consultation, the doctor and the parent(s) must be identified. Non-face-to-face preoperative consultation is especially useful in ASA I and II children evaluated for low-risk surgeries, reintervention, or diagnostic procedures. Those patients who require a physical examination, beyond that possible electronically, should make an appointment in the face-to-face consultation. The nursing staff can actively participate in this process as long as the anesthesiologist supervises the entire process, makes all decisions about the procedure and is responsible for the information given to the parents and the child, personally clarifying any doubts. The anesthesiologist must inform about the procedure, its risks, including personalized ones, and alternatives. It will be recorded in the medical history the information given, when and to whom. The anesthesiologist will sign the Informed Consent stating the date that the information is given, and the parents must sign it before the intervention.(AU)


Asunto(s)
Humanos , Masculino , Femenino , Niño , Telemedicina , Medicación Preanestésica , Consulta Remota , Seguridad del Paciente , Anestesiología/tendencias , Consentimiento Informado de Menores
14.
J Neurosurg Case Lessons ; 7(3)2024 Jan 15.
Artículo en Inglés | MEDLINE | ID: mdl-38224588

RESUMEN

BACKGROUND: Lipomatosis of nerve (LN) is a rare disorder characterized by the massive enlargement of peripheral nerves, frequently accompanied by generalized fibroadipose proliferation and skeletal overgrowth. OBSERVATIONS: The authors have been routinely following a 20-year-old male for lipomatosis of median nerve at the wrist noted shortly after birth. He had undergone resection of the lesion accompanied by sural nerve grafting at another institution. Clinically, although his neurological loss of function has been stable, he has had continued soft tissue growth. Serial magnetic resonance imaging has revealed persistent LN proximal to the repair sites with evidence of fatty proliferation in the sural grafts and continued LN and fatty proliferation distally. There has been a progressive circumferential pattern of fibrosis around the proximal and distal suture lines, which has a similar radiological pattern to desmoid type fibromatosis (a pattern recently described in neuromuscular choristoma [NMC] desmoid-type fibromatosis). LESSONS: Considering the similar reaction of nerve in both LN and NMC despite differing genetic cascades, the authors believe a unifying process occurs in both lesions. The pattern of circumferential fibroproliferation would be most consistent with neuron-mediated growth from unspecified trophic factors, supporting a previously reported a nerve-derived "inside-out mechanism." The clinical consequences of this unifying process are presented.

15.
J Neurosurg ; 140(1): 1-9, 2024 Jan 01.
Artículo en Inglés | MEDLINE | ID: mdl-37382327

RESUMEN

OBJECTIVE: Neuromuscular choristoma (NMC) is a rare developmental malformation of peripheral nerve that is frequently associated with the development of a desmoid-type fibromatosis (DTF). Both NMC and NMC-DTF typically contain pathogenic CTNNB1 mutations and NMC-DTF develop only within the NMC-affected nerve territory. The authors aimed to determine if there is a nerve-driven mechanism involved in the formation of NMC-DTF from the underlying NMC-affected nerve. METHODS: Retrospective review was performed for patients evaluated in the authors' institution with a diagnosis of NMC-DTF in the sciatic nerve (or lumbosacral plexus). MRI and FDG PET/CT studies were reviewed to determine the specific relationship and configuration of NMC and DTF lesions along the sciatic nerve. RESULTS: Ten patients were identified with sciatic nerve NMC and NMC-DTF involving the lumbosacral plexus, sciatic nerve, or sciatic nerve branches. All primary NMC-DTF lesions were located in the sciatic nerve territory. Eight cases of NMC-DTF demonstrated circumferential encasement of the sciatic nerve, and one abutted the sciatic nerve. One patient had a primary DTF remote from the sciatic nerve, but subsequently developed multifocal DTF within the NMC nerve territory, including 2 satellite DTFs that circumferentially encased the parent nerve. Five patients had a total of 8 satellite DTFs, 4 of which abutted the parent nerve and 3 that circumferentially involved the parent nerve. CONCLUSIONS: Based on clinical and radiological data, a novel mechanism of NMC-DTF development from soft tissues innervated by NMC-affected nerve segments is proposed, reflecting their shared molecular genetic alteration. The authors believe the DTF develops outward from the NMC in a radial fashion or it arises in the NMC and wraps around it as it grows. In either scenario, NMC-DTF develops directly from the nerve, likely arising from (myo)fibroblasts within the stromal microenvironment of the NMC and grows outward into the surrounding soft tissues. Clinical implications for patient diagnosis and treatment are presented based on the proposed pathogenetic mechanism.


Asunto(s)
Coristoma , Fibromatosis Agresiva , Hamartoma , Humanos , Fibromatosis Agresiva/diagnóstico por imagen , Fibromatosis Agresiva/complicaciones , Fibromatosis Agresiva/genética , Coristoma/complicaciones , Tomografía Computarizada por Tomografía de Emisión de Positrones , Hamartoma/patología , Nervio Ciático/diagnóstico por imagen , Nervio Ciático/patología , Márgenes de Escisión , Microambiente Tumoral
17.
Int J Surg Pathol ; 32(2): 340-355, 2024 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-37312573

RESUMEN

Deficiency of fumarate hydratase (FH) protein expression in uterine corpus leiomyomas may be attributable to either germline or somatic mutations of the FH gene, the former being definitional for the hereditary leiomyomatosis and renal cell cancer syndrome. The authors assess whether, using previously reported FH-associated morphologic features, FH protein-deficient uterine corpus leiomyomas associated with a pathogenic germline mutations of the FH gene (group 1) are distinguishable from FH protein-deficient uterine corpus leiomyomas without such mutations (and whose FH protein loss is presumed to be attributable to somatic/epigenetic inactivation or other unknown phenomena: group 2). Groups 1 and 2 were compared regarding a variety of clinicopathologic features, including 7 core "FH-associated" tumoral morphologic features: staghorn vasculature; alveolar-type edema; bizarre nuclei; chain-like tumor nuclei; hyaline cytoplasmic globules; prominent nucleoli, intranuclear inclusions, and perinucleolar halos; and prominent eosinophilic/fibrillary cytoplasm. Among 2418 patients diagnosed with uterine corpus leiomyoma during the study period, FH-associated morphologic features were reported in 1.5% (37 patients), and FH immunohistochemistry was performed in 29 (1.19%). Fourteen (48.27%) of the 29 patients showed FH protein deficiency by immunohistochemistry. Twelve patients underwent germline testing, of which 8 (66.7%) were classified as group 1 and 4 (33.3%) as group 2. FH protein-deficient tumors were larger (10.44 vs 4.08 cm, P = 0.01) and associated with younger patients (42.05 vs 47.97, P = 0.004) than 370 randomly selected uterine leiomyoma controls. Groups 1 and 2 showed no significant differences in patient age and tumor size. In group 1 tumors, the FH-associated morphologic features were generally present diffusely; all group 1 tumors displayed ≥5 FH-associated features, whereas all group 2 tumors displayed <5 FH-associated features (means 6.5 ± 0.53 vs 3.5 ± 1.00, P < 0.001). Notably, eosinophilic/fibrillary cytoplasm and alveolar-type edema were each significantly more prevalent in group 1 tumors than group 2 tumors (P = 0.018 for both). No single morphologic feature was found to be completely sensitive and specific in making the distinction between group 1 and 2 tumors. Our findings suggest that groups 1 and 2 are unlikely to be morphologically distinguishable by individual morphologic features. Whether there is a combination of features that can reliably make this distinction is unclear and will require additional studies with larger cohorts.


Asunto(s)
Carcinoma de Células Renales , Fumarato Hidratasa/deficiencia , Neoplasias Renales , Leiomiomatosis , Errores Innatos del Metabolismo , Hipotonía Muscular , Trastornos Psicomotores , Neoplasias Cutáneas , Neoplasias Uterinas , Humanos , Femenino , Fumarato Hidratasa/genética , Leiomiomatosis/diagnóstico , Leiomiomatosis/genética , Mutación de Línea Germinal , Edema , Células Germinativas , Neoplasias Uterinas/genética
20.
J Surg Oncol ; 129(4): 718-727, 2024 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-38063245

RESUMEN

BACKGROUND: Gastric cancer patients with malignant ascites often have poor functional status and malnutrition that preclude receipt of systemic therapies. Thus, these patients have a very poor prognosis. Beginning in 2019, our multidisciplinary gastric cancer disease-oriented team implemented a more aggressive supportive care plan for gastric cancer patients with malignant ascites. The initiative included measures such as supplemental enteral nutrition, ascites drainage, and initiation of chemotherapy on an inpatient basis. We compared outcomes for gastric cancer patients who presented with synchronous malignant ascites treated before and after the implementation of the care plan. METHODS: We performed a retrospective review of our institutional database to identify patients diagnosed with gastric adenocarcinoma and synchronous malignant ascites between 2010 and 2022. We compared overall survival (OS) between patients diagnosed from 2010 to 2018, which will be referred to as the historical control era and patients diagnosed from 2019 to 2022, which will be called the aggressive supportive care era. RESULTS: Fifty-four patients were included in our analysis; 31 patients were treated in the historical control time frame, and 23 patients were treated during the aggressive supportive care era. Demographic, clinical, and pathologic characteristics were similar between groups. 3% of historical controls received supplemental tube feeds at diagnosis as compared to 30% of the aggressive supportive care cohort (p < 0.01). 3% of historical controls received their first cycle of chemotherapy in the inpatient setting versus 39% of patients treated during the aggressive supportive care era (p < 0.01). The median number of chemotherapy cycles received was 5 among historical controls and 9.5 among aggressive supportive care era patients (p = 0.02). There was no difference in the number of days spent as an inpatient between the two groups. The median OS for historical control patients was 5.4 months as compared with 10.4 months for patients treated during aggressive supportive care era (p = 0.04). CONCLUSIONS: Gastric cancer patients with synchronous malignant ascites treated during a timeframe when our multidisciplinary team implemented more aggressive supportive care measures had improved OS as compared with historic controls. Our results suggest that aggressive supportive measures for these patients with highly challenging clinical issues and poor prognosis can prolong survival. Specifically, initiation of chemotherapy in the inpatient setting and supplemental nutrition should be considered for patients at high risk for treatment intolerance.


Asunto(s)
Adenocarcinoma , Neoplasias Peritoneales , Neoplasias Gástricas , Humanos , Neoplasias Gástricas/terapia , Neoplasias Gástricas/tratamiento farmacológico , Ascitis/etiología , Ascitis/terapia , Pronóstico , Neoplasias Peritoneales/patología , Adenocarcinoma/terapia , Adenocarcinoma/tratamiento farmacológico , Estudios Retrospectivos
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