Your browser doesn't support javascript.
loading
Mostrar: 20 | 50 | 100
Resultados 1 - 20 de 38
Filtrar
1.
Gynecol Oncol ; 187: 80-84, 2024 May 11.
Artigo em Inglês | MEDLINE | ID: mdl-38735143

RESUMO

OBJECTIVES: To evaluate procedures performed during primary debulking surgery (PDS) and interval debulking surgery (IDS) for ovarian cancer. METHODS: Patients surgically treated at our institution for newly diagnosed stage IIIC/IV epithelial ovarian cancer between 6/1/2015-12/31/2021 were identified using a prospectively collected database. Patients were triaged to PDS or neoadjuvant chemotherapy (NACT) followed by IDS using an institutional algorithm. Data on specific procedures performed, including consultants called, were collected from operative and pathology reports. Appropriate statistical analyses were applied. RESULTS: Overall, 467 patients underwent PDS and 434 underwent IDS; 76% (PDS) and 71% (IDS) of cases achieved complete gross resection. Comparing PDS vs IDS cohorts, median age was 63 years (range, 23-86) vs 67 years (range, 35-95), 79% vs 86% of patients had high-grade serous histology, and 38% vs 70% had stage IV disease. Most procedures (except ostomy, distal pancreatectomy) were more common during PDS (P < .05). Bowel surgery was performed during 65% of PDS and 33% of IDS, and upper abdominal surgery during 72% of PDS and 52% of IDS; both were more common during PDS (P < .001). Estimated blood loss (median, 500 mL [PDS] vs 300 mL [IDS]) and operative time (median, 362 min [PDS] vs 267 min [IDS]) were higher for PDS (P < .001). A consulting surgeon was utilized during 31% of PDS and 18% of IDS, with hepatopancreaticobiliary as the most commonly called service (61% and 65%, respectively). CONCLUSIONS: In our study of patients with advanced-stage ovarian cancer, while most procedures were more often performed during PDS, NACT did not obviate the need for radical surgical resection. Thus, advanced surgical skills remain essential.

2.
PLoS One ; 19(3): e0289395, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-38437228

RESUMO

The detection of temperature by the human sensory system is life-preserving and highly evolutionarily conserved. Platelets are sensitive to temperature changes and are activated by a decrease in temperature, akin to sensory neurons. However, the molecular mechanism of this temperature-sensing ability is unknown. Yet, platelet activation by temperature could contribute to numerous clinical sequelae, most importantly to reduced quality of ex vivo-stored platelets for transfusion. In this multidisciplinary study, we present evidence for the expression of the temperature-sensitive ion channel transient receptor potential cation channel subfamily member 8 (TRPM8) in human platelets and precursor cells. We found the TRPM8 mRNA and protein in MEG-01 cells and platelets. Inhibition of TRPM8 prevented temperature-induced platelet activation and shape change. However, chemical agonists of TRPM8 did not seem to have an acute effect on platelets. When exposing platelets to below-normal body temperature, we detected a cytosolic calcium increase which was independent of TRPM8 but was completely dependent on the calcium release from the endoplasmic reticulum. Because of the high interindividual variability of TRPM8 expression, a population-based approach should be the focus of future studies. Our study suggests that the cold response of platelets is complex and TRPM8 appears to play a role in early temperature-induced activation of platelets, while other mechanisms likely contribute to later stages of temperature-mediated platelet response.


Assuntos
Cálcio , Canais de Cátion TRPM , Humanos , Temperatura Baixa , Cálcio da Dieta , Retículo Endoplasmático , Células Receptoras Sensoriais , Canais de Cátion TRPM/genética , Proteínas de Membrana
3.
Gynecol Oncol ; 179: 9-15, 2023 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-37864854

RESUMO

OBJECTIVE: To compare clinical and pathologic characteristics of women with surgical stage I endometrial carcinoma by location of first recurrence and describe characteristics of isolated vaginal recurrence. METHODS: Patients with 2009 International Federation of Obstetrics and Gynecology (FIGO) stage I endometrial carcinoma treated at two large cancer centers from 1/1/2009-12/31/2017 were identified. Sarcoma histology was excluded. Recurrences were grouped into isolated vaginal or extravaginal. Isolated vaginal recurrences were localized by anatomic location within the vaginal vault. Clinical and pathologic variables were compared with chi-square analysis, and Kaplan-Meier curves with log-rank tests. RESULTS: Of 2815 women identified, 278 (10%) experienced a recurrence. Sixty-one patients (2%) had an isolated vaginal recurrence, including 42 (69%) at the vaginal apex; 217 (8%) had an extravaginal recurrence, including 18 with a vaginal component. Median time to recurrence was 11 months (range, 1-68) for isolated vaginal recurrence and 20 months (range, 1-98) for extravaginal recurrence (P < .004). Of 960 patients (34%) treated with adjuvant vaginal brachytherapy (VBT), 156 (16%) recurred; 19 (2%) had an isolated vaginal recurrence, including 16 (84%) at the vaginal apex. Three-year PFS rates for isolated vaginal recurrence were 97.6% (SE ± 0.4%) with minimally invasive surgery (MIS) versus 96.9% (SE ± 1.1%) with open (P = .8), and for extravaginal recurrence were 91.8% (SE ± 0.7%) with MIS versus 90.8% (SE ± 1.8%) with open (P = .8). CONCLUSIONS: Isolated vaginal recurrences in stage I endometrial cancer are detected earlier than non-vaginal recurrences. Surgical approach does not appear to impact recurrence. Adjuvant VBT after primary surgery carries a 1%-2% risk of isolated vaginal apex recurrence.


Assuntos
Braquiterapia , Neoplasias do Endométrio , Humanos , Feminino , Recidiva Local de Neoplasia/patologia , Neoplasias do Endométrio/cirurgia , Neoplasias do Endométrio/patologia , Vagina/cirurgia , Vagina/patologia , Estadiamento de Neoplasias , Estudos Retrospectivos
4.
bioRxiv ; 2023 Jul 19.
Artigo em Inglês | MEDLINE | ID: mdl-37502986

RESUMO

Platelets are sensitive to temperature changes and akin to sensory neurons, are activated by a decrease in temperature. However, the molecular mechanism of this temperature-sensing ability is unknown. Yet, platelet activation by temperature could contribute to numerous clinical sequelae, most importantly to reduced quality of ex vivo-stored platelets for transfusion. In this interdisciplinary study, we present evidence for the expression of the temperature-sensitive ion channel transient receptor potential cation channel subfamily member 8 (TRPM8) in human platelets and precursor cells. We found the TRPM8 mRNA and protein in MEG-01 cells and platelets. Inhibition of TRPM8 prevented temperature-induced platelet activation and shape change. However, chemical agonists of TRPM8 did not seem to have an acute effect on platelets. When exposing platelets to below-normal body temperature, we detected a cytosolic calcium increase which was independent of TRPM8 but was completely dependent on the calcium release from the endoplasmic reticulum. Because of the high interindividual variability of TRPM8 expression, a population-based approach should be the focus of future studies. Our study suggests that the cold response of platelets is complex and TRPM8 appears to play a role in early temperature-induced activation of platelets, while other mechanisms likely contribute to later stages of temperature-mediated platelet response.

5.
Polymers (Basel) ; 15(12)2023 Jun 19.
Artigo em Inglês | MEDLINE | ID: mdl-37376383

RESUMO

Currently, the preparation of actuators based on ionic electroactive polymers with a fast response is considered an urgent topic. In this article, a new approach to activate polyvinyl alcohol (PVA) hydrogels by applying an AC voltage is proposed. The suggested approach involves an activation mechanism in which the PVA hydrogel-based actuators undergo extension/contraction (swelling/shrinking) cycles due to the local vibration of the ions. The vibration does not cause movement towards the electrodes but results in hydrogel heating, transforming the water molecules into a gaseous state and causing the actuator to swell. Two types of linear actuators based on PVA hydrogels were prepared, using two types of reinforcement for the elastomeric shell (spiral weave and fabric woven braided mesh). The extension/contraction of the actuators, activation time, and efficiency were studied, considering the PVA content, applied voltage, frequency, and load. It was found that the overall extension of the spiral weave-reinforced actuators under a load of ~20 kPa can reach more than 60%, with an activation time of ~3 s by applying an AC voltage of 200 V and a frequency of 500 Hz. Conversely, the overall contraction of the actuators reinforced by fabric woven braided mesh under the same conditions can reach more than 20%, with an activation time of ~3 s. Moreover, the activation force (swelling load) of the PVA hydrogels can reach up to 297 kPa. The developed actuators have broad applications in medicine, soft robotics, the aerospace industry, and artificial muscles.

6.
Polymers (Basel) ; 15(12)2023 Jun 20.
Artigo em Inglês | MEDLINE | ID: mdl-37376401

RESUMO

Elastomeric materials have great application potential in actuator design and soft robot development. The most common elastomers used for these purposes are polyurethanes, silicones, and acrylic elastomers due to their outstanding physical, mechanical, and electrical properties. Currently, these types of polymers are produced by traditional synthetic methods, which may be harmful to the environment and hazardous to human health. The development of new synthetic routes using green chemistry principles is an important step to reduce the ecological footprint and create more sustainable biocompatible materials. Another promising trend is the synthesis of other types of elastomers from renewable bioresources, such as terpenes, lignin, chitin, various bio-oils, etc. The aim of this review is to address existing approaches to the synthesis of elastomers using "green" chemistry methods, compare the properties of sustainable elastomers with the properties of materials produced by traditional methods, and analyze the feasibility of said sustainable elastomers for the development of actuators. Finally, the advantages and challenges of existing "green" methods of elastomer synthesis will be summarized, along with an estimation of future development prospects.

7.
Int J Mol Sci ; 24(8)2023 Apr 12.
Artigo em Inglês | MEDLINE | ID: mdl-37108298

RESUMO

Primary open-angle glaucoma (POAG) is a frequent blindness-causing neurodegenerative disorder characterized by optic nerve and retinal ganglion cell damage most commonly due to a chronic increase in intraocular pressure. The preservation of visual function in patients critically depends on the timeliness of detection and treatment of the disease, which is challenging due to its asymptomatic course at early stages and lack of objective diagnostic approaches. Recent studies revealed that the pathophysiology of glaucoma includes complex metabolomic and proteomic alterations in the eye liquids, including tear fluid (TF). Although TF can be collected by a non-invasive procedure and may serve as a source of the appropriate biomarkers, its multi-omics analysis is technically sophisticated and unsuitable for clinical practice. In this study, we tested a novel concept of glaucoma diagnostics based on the rapid high-performance analysis of the TF proteome by differential scanning fluorimetry (nanoDSF). An examination of the thermal denaturation of TF proteins in a cohort of 311 ophthalmic patients revealed typical profiles, with two peaks exhibiting characteristic shifts in POAG. Clustering of the profiles according to peaks maxima allowed us to identify glaucoma in 70% of cases, while the employment of artificial intelligence (machine learning) algorithms reduced the amount of false-positive diagnoses to 13.5%. The POAG-associated alterations in the core TF proteins included an increase in the concentration of serum albumin, accompanied by a decrease in lysozyme C, lipocalin-1, and lactotransferrin contents. Unexpectedly, these changes were not the only factor affecting the observed denaturation profile shifts, which considerably depended on the presence of low-molecular-weight ligands of tear proteins, such as fatty acids and iron. Overall, we recognized the TF denaturation profile as a novel biomarker of glaucoma, which integrates proteomic, lipidomic, and metallomic alterations in tears, and monitoring of which could be adapted for rapid non-invasive screening of the disease in a clinical setting.


Assuntos
Glaucoma de Ângulo Aberto , Glaucoma , Humanos , Glaucoma de Ângulo Aberto/tratamento farmacológico , Proteômica/métodos , Inteligência Artificial , Glaucoma/diagnóstico , Glaucoma/complicações , Olho/metabolismo , Pressão Intraocular , Biomarcadores/metabolismo
8.
Gynecol Oncol ; 169: 85-90, 2023 02.
Artigo em Inglês | MEDLINE | ID: mdl-36521353

RESUMO

OBJECTIVES: We assessed a conditional probability of survival (CPS) model to determine the probability of living 10 years after ovarian cancer diagnosis after having already survived 5 years. METHODS: We identified patients newly diagnosed with high-grade epithelial ovarian cancer from 1/1/2001-12/31/2009 and treated at our institution. Patients with <3 years follow-up were excluded. CPS was defined as the probability of surviving additional years (y) based on the condition a patient had already survived a given time (x): S(x + y)/S(x). Confidence intervals were estimated using a variation of Greenwood's formula. RESULTS: Of 916 patients meeting inclusion criteria, 473 (52%) were diagnosed from 2001 to 2005 and 443 (48%) from 2006 to 2009. Median age at diagnosis was 60 years (range, 25-95). The conventional 10-year OS rate for all patients was 29% (95% CI: 26%-32%)-75% (95% CI: 68%-82%) for stage I/II disease, 22% (95% CI: 19%-26%) for stage III, and 6.9% (95% CI: 3.9%-12%) for stage IV. For patients <65 years, the 10-year CPS for 5-year survivors was 65% (95% CI: 59%-70%); for those ≥65 years, it was 48% (95% CI: 38%-57%). For patients <65 years, the 10-year CPS for 5-year survivors by stage was: stage I/II, 89% (95% CI: 81%-94%); stage III, 58% (95% CI: 50%-66%); and stage IV, 26% (95% CI: 12%-42%). For patients ≥65 years, rates by stage were 78% (95% CI: 53%-91%), 42% (95% CI: 30%-53%), and 29% (95% CI: 7%-56%), respectively. CONCLUSIONS: For long-term survivors with high-grade epithelial ovarian cancer, CPS provides better prediction of survival than conventional methods.


Assuntos
Neoplasias Ovarianas , Humanos , Feminino , Adulto , Pessoa de Meia-Idade , Idoso , Idoso de 80 Anos ou mais , Carcinoma Epitelial do Ovário , Estadiamento de Neoplasias , Neoplasias Ovarianas/patologia , Probabilidade , Sobreviventes
9.
Gynecol Oncol ; 167(2): 277-282, 2022 11.
Artigo em Inglês | MEDLINE | ID: mdl-36064678

RESUMO

OBJECTIVE: To evaluate postoperative and oncologic outcomes associated with pelvic exenteration for non-ovarian gynecologic malignancies. METHODS: This was a retrospective review of patients who underwent pelvic exenteration for non-ovarian gynecologic malignancies at our institution from 1/1/2010-12/31/2019. Palliative exenteration cases were excluded from survival analysis. Postoperative complications were early (≤30 days) or late (31-180 days). Complications were graded using a validated institutional scale. Major complications were considered grade ≥ 3. Categorical variables were compared using the chi-square test, and the Kaplan-Meier method was used for survival analysis. RESULTS: Of 100 patients identified, 89 underwent pelvic exenteration for recurrent disease, 5 for palliation, 5 for primary disease, and 1 for persistent disease. Thirty percent had cervical, 27% vulvar, 24% uterine, and 19% vaginal cancer. Sixty-two percent underwent total, 30% anterior, and 8% posterior exenteration. No deaths occurred intraoperatively or within 30 days of surgery. Six patients died after 30 days. Ninety-seven experienced a perioperative complication-49 early, 1 late, and 47 both. Fifty experienced a major complication-22 (44%) early, 19 (38%) late, and 9 (18%) both. No variables were statistically associated with complication development. The 3-year progression-free survival rate was 61.0%; the 3-year overall survival rate was 61.6%. Of 58 surviving patients, 16 (28%) and 4 (7%) were alive after 5 and 10 years, respectively. CONCLUSION: The overall complication rate for pelvic exenteration remains high. No variables demonstrated association with complication development as the rate was nearly 100%. The low rate of perioperative mortality is likely due to improved perioperative care.


Assuntos
Neoplasias dos Genitais Femininos , Exenteração Pélvica , Neoplasias Vaginais , Humanos , Feminino , Neoplasias dos Genitais Femininos/cirurgia , Exenteração Pélvica/efeitos adversos , Exenteração Pélvica/métodos , Análise de Sobrevida , Estudos Retrospectivos , Neoplasias Vaginais/cirurgia , Recidiva Local de Neoplasia/patologia
10.
Polymers (Basel) ; 14(17)2022 Aug 26.
Artigo em Inglês | MEDLINE | ID: mdl-36080587

RESUMO

Polymer smart materials are a broad class of polymeric materials that can change their shapes, mechanical responses, light transmissions, controlled releases, and other functional properties under external stimuli. A good understanding of the aspects controlling various types of shape memory phenomena in shape memory polymers (SMPs), such as polymer structure, stimulus effect and many others, is not only important for the preparation of new SMPs with improved performance, but is also useful for the optimization of the current ones to expand their application field. In the present era, simple understanding of the activation mechanisms, the polymer structure, the effect of the modification of the polymer structure on the activation process using fillers or solvents to develop new reliable SMPs with improved properties, long lifetime, fast response, and the ability to apply them under hard conditions in any environment, is considered to be an important topic. Moreover, good understanding of the activation mechanism of the two-way shape memory effect in SMPs for semi-crystalline polymers and liquid crystalline elastomers is the main key required for future investigations. In this article, the principles of the three basic types of external stimuli (heat, chemicals, light) and their key parameters that affect the efficiency of the SMPs are reviewed in addition to several prospective applications.

11.
Int J Gynecol Cancer ; 2022 Jun 08.
Artigo em Inglês | MEDLINE | ID: mdl-35675969

RESUMO

OBJECTIVE: Antineoplastic agents can cause hypersensitivity reactions that may preclude further treatment, possibly compromising patient outcome if the tumor remains sensitive to such agent. Although desensitization protocols can be used to re-introduce agents after the development of a hypersensitivity reaction, these protocols vary across institutions. Our study evaluated the safety and efficacy of our desensitization protocol. METHODS: All patients who underwent desensitization to platinum, taxane, liposomal doxorubicin, or trastuzumab between November 2016 and May 2021 after a prior hypersensitivity reaction to the specific agent were included in a retrospective review. The 12-step, outpatient desensitization protocol included pretreatment with a leukotriene receptor antagonist, antihistamines, and corticosteroids, as well as extended infusion times. Successful desensitization was defined as the completion of ≥3 cycles without discontinuation of the agent due to a hypersensitivity reaction. RESULTS: A total of 186 eligible patients were included. Median age was 59.5 years (range 26-87). 155 (83%) patients were treated with platinum. 55 (30%) patients were treated for colorectal cancer and 52 (28%) for ovarian cancer. 104 (56%) patients completed ≥3 cycles of therapy during desensitization. The median infusion time was 380 min (range 325-360 min). The median number of desensitization cycles was 3, with 694 cycles completed among all patients. A total of 79 (42%) patients had a breakthrough hypersensitivity reaction during desensitization, 4 of whom required epinephrine, and 84 (45%) patients discontinued the agent undergoing desensitization due to progression of disease. CONCLUSIONS: Our outpatient 12-step, institutional desensitization protocol for antineoplastic therapy proved safe and efficacious, with 56% of patients successfully completing ≥3 cycles and not requiring an inpatient admission.

12.
Gynecol Oncol ; 163(2): 294-298, 2021 11.
Artigo em Inglês | MEDLINE | ID: mdl-34518053

RESUMO

OBJECTIVES: To explore pre-operative factors and their impact on overall survival (OS) in a modern cohort of patients who underwent pelvic exenteration (PE) for gynecologic malignancies. METHODS: A retrospective review was performed for all patients who underwent a PE from 1/1/2010 through 12/31/2018 at our institution. Inclusion criteria were exenteration due to recurrent or progressive carcinoma of the uterus, cervix, vagina or vulva, with histologically confirmed complete surgical resection of the malignancy. Exclusion criteria included PE for palliation of symptoms without recurrence, and for ovarian or rare histologic malignancies. Univariable and multivariable analysis were performed to identify factors predicting prolonged survival. RESULTS: Overall, 71 patients met the inclusion criteria. Median age at time of exenteration was 62 years (range, 28-86 years). Vulvar cancer was the most common primary diagnosis (32%); 30% had cervical cancer; 23%, uterine cancer; 15%, vaginal cancer. Median OS was 55.1 months (95% confidence interval (CI): 36-not estimable) with a median follow-up time of 40.8 months (95% CI: 1-116.1). On univariable analysis, age > 62 years (hazard ratio (HR) 2.71, 95% CI 1.27-5.79), American Society of Anesthesia (ASA) 3-4 (HR: 3.41 (95% CI 1.03-11.29), and vulvar cancer (HR 4.19 (95% CI 1.17-14.96) predicted worse OS. Tumor size and prior progression-free interval (PFI) did not meet statistical significance in OS analyses. On multivariable analysis, there were no significant factors associated with worse OS. CONCLUSIONS: PE performed with curative intent may be considered a treatment option in well-counseled, carefully selected patients, irrespective of tumor size and PFI before exenteration.


Assuntos
Neoplasias dos Genitais Femininos/mortalidade , Recidiva Local de Neoplasia/epidemiologia , Exenteração Pélvica/estatística & dados numéricos , Adulto , Idoso , Idoso de 80 Anos ou mais , Feminino , Seguimentos , Neoplasias dos Genitais Femininos/patologia , Neoplasias dos Genitais Femininos/cirurgia , Humanos , Margens de Excisão , Pessoa de Meia-Idade , Recidiva Local de Neoplasia/prevenção & controle , Seleção de Pacientes , Intervalo Livre de Progressão , Estudos Retrospectivos , Fatores de Risco , Fatores de Tempo , Carga Tumoral
13.
Gynecol Oncol Rep ; 37: 100831, 2021 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-34345644

RESUMO

OBJECTIVE: Since the approval of pembrolizumab for advanced or recurrent PD-L1 positive (CPS > 1%) cervical cancer, the clinical characteristics associated with response have remained undefined. We sought to characterize the clinicopathologic features of patients with advanced cervical cancer at our institution who derived durable clinical benefit from treatment with pembrolizumab. METHODS: We conducted a retrospective cohort study of 14 patients with recurrent or metastatic cervical cancer who received pembrolizumab monotherapy from August 2017 to November 2019 and were followed until November 1, 2020. Reviewed clinical data included age, histology, tumor molecular profiling results, stage at diagnosis, treatment history, baseline pattern of metastatic disease at initiation of anti-PD-1 therapy, and outcomes. Treatment response was evaluated by computed tomography using RECIST v1.1 criteria. RESULTS: The objective response rate was 21% (n = 3), including two partial responses and one complete response. Two patients (14%) had stable disease of six months or greater, for an observed durable clinical benefit rate of 36%. When stratified by those who derived clinical benefit, metastatic spread to lung and/or lymph node only at baseline was associated with improved response to pembrolizumab (n = 7, p = 0.02) and associated with significantly improved PFS and OS. Tumor mutational burden was higher in those with durable clinical benefit compared to non-responders (median 12.7 vs. 3.5 mutations/megabase, p = 0.03). CONCLUSIONS: Our findings highlight clinical features that may select for a population most likely to benefit from pembrolizumab monotherapy and underscores the need for identification of additional biomarkers of response.

14.
Gynecol Oncol ; 161(3): 687-692, 2021 06.
Artigo em Inglês | MEDLINE | ID: mdl-33773807

RESUMO

OBJECTIVES: To determine whether the Memorial Sloan Kettering Frailty Index (MSK-FI) is associated with decision-making in older women surgically treated for advanced-stage ovarian cancer. METHODS: We retrospectively applied the MSK-FI to women ≥70 years with newly diagnosed advanced-stage ovarian cancer surgically treated at our institution from 01/2001-05/2017. MSK-FI components, including 10 comorbidities and functional assessment, were extracted from medical records. The MSK-FI ranges from 0 to 11, with higher scores indicating greater frailty. The primary outcome was the association between frailty and rate of primary debulking surgery (PDS), for which a multivariable logistic regression was used, adjusted for stage and histology. RESULTS: We identified 430 women treated with PDS (n = 231, 54%) or neoadjuvant chemotherapy/interval debulking (n = 199, 46%) with complete data. MSK-FI score distribution was: "0", 95 patients (22%); "1", 172 (40%); "2", 89 (21%); and "3+", 74 (17%). More-frail patients were less likely to have undergone PDS (OR for a unit increase of MSK-FI: 0.64; 95%CI, 0.53-0.77; p < 0.0001). Grade 3+ complications and unintended intensive care admission occurred in 40 (9%) and 38 (9%) women, respectively, but were not associated with frailty (OR 1.21; 95%CI, 0.96-1.52; p = 0.11). More-frail patients were more likely to delay postoperative chemotherapy (non-linear association p = 0.009) and less likely to enroll in research (OR 0.84; 95%CI, 0.70-1.00; p = 0.049). Greater frailty was associated with poorer overall survival (HR 1.16; 95%CI, 1.05-1.30; p = 0.005). CONCLUSIONS: Frailty, as calculated by the MSK-FI, is strongly associated with treatment approach in older women with advanced ovarian cancer, suggesting objective or subjective correlates of the MSK-FI influence decision-making.


Assuntos
Carcinoma Epitelial do Ovário/cirurgia , Idoso Fragilizado , Fragilidade , Neoplasias Ovarianas/cirurgia , Idoso , Idoso de 80 Anos ou mais , Carcinoma Epitelial do Ovário/mortalidade , Carcinoma Epitelial do Ovário/patologia , Tomada de Decisão Clínica , Procedimentos Cirúrgicos de Citorredução , Feminino , Humanos , Metástase Neoplásica , New York , Neoplasias Ovarianas/mortalidade , Neoplasias Ovarianas/patologia , Estudos Retrospectivos , Análise de Sobrevida
15.
Gynecol Oncol ; 161(2): 545-552, 2021 05.
Artigo em Inglês | MEDLINE | ID: mdl-33674143

RESUMO

OBJECTIVES: To determine if the mutational landscapes and genomic features of homologous recombination DNA repair defects (HRD) vary between younger and older patients with high-grade serous ovarian cancer (HGSOC). METHODS: Younger and older women were defined as bottom and top age quartiles, respectively. HGSOCs from 15 younger (median 49 years, range 35-53) and 15 older women (median 72 years, range 70-87) were subjected to whole-exome sequencing (WES). For validation, HGSOC WES data were obtained from The Cancer Genome Atlas (TCGA), including 38 younger (median 45 years, range 34-50) and 30 older women (median 74 years, range 68-84). Mutational profiles, BRCA1/2 status, genomic HRD features, and for TCGA cases RNA-sequencing-based HRD transcriptomic signatures were assessed. RESULTS: In the institutional cohort, pathogenic germline BRCA1/2 mutations were more frequent in younger (5/15) than older women (0/15, p = 0.042). No somatic BRCA1/2 mutations were identified. HGSOCs from older patients preferentially displayed aging-related mutational signatures and, in contrast to younger patients, harbored CCNE1 amplifications (3/15, 20%). In the TCGA cohort, pathogenic germline BRCA1 (younger 8/38, older 0/30, p = 0.007) but not BRCA2 mutations (young 3/38, older 4/30, p = 0.691) were more frequent in younger patients. Again, no somatic BRCA1/2 mutations were identified. HGSOCs from younger women more frequently displayed genomic features of HRD (all, p < 0.05), a significant HRD gene-signature enrichment, but less frequently CCNE1 amplification (p = 0.05). Immunoreactive CLOVAR subtypes were more common in HGSOCs from younger women, and proliferative subtypes in HGSOCs from older women (p = 0.041). CONCLUSIONS: HGSOC patients diagnosed at an older age less frequently harbor pathogenic BRCA1 germline mutations and genomic features of HRD than younger women. Individualized treatment options, particularly pertaining to use of PARP inhibitors, in older women may be warranted.


Assuntos
Cistadenocarcinoma Seroso/genética , Neoplasias Ovarianas/genética , Adulto , Fatores Etários , Idoso , Idoso de 80 Anos ou mais , Proteína BRCA1/genética , Proteína BRCA2/genética , Cistadenocarcinoma Seroso/patologia , Feminino , Mutação em Linhagem Germinativa , Humanos , Pessoa de Meia-Idade , Gradação de Tumores , Neoplasias Ovarianas/patologia , Reparo de DNA por Recombinação
16.
Soc Sci Med ; 269: 113563, 2021 01.
Artigo em Inglês | MEDLINE | ID: mdl-33309442

RESUMO

In Ukraine, women constitute a third of all new HIV infections, and injection drug use accounts for nearly half of HIV infections among women. Women who use drugs (WWUD) often have diminished access to drug use treatment, HIV care, and other health and social services or underutilize women-specific services such as maternal health services. While interpersonal and contextual factors diminish access to and utilization of services among WWUD, rules, processes, and bureaucratic structures also systematically exclude women from accessing services and resources. Institutions, bureaucratic processes, and instruments of legibility such as documents regulate who can and cannot access services and raise questions about "deservingness." In this paper, we use the lens of bureaucracy to explore paperwork as a form of structural violence through its production of "legible" citizens, often through reinforcement of gender stereotypes and moral narratives of deservingness. Between December 2017 and October 2018, we interviewed 41 medical and social service providers and 37 WWUD in two Ukrainian cities. Our analysis revealed that requirements for internal passports and residency permits-the primary state apparatus through which rights to services are granted in Ukraine-compelled participants to continually render themselves visible to the state in order to receive services, despite financial, logistical and other challenges that undermined women's ability to obtain documents. These requirements exposed them to new forms of stigma and exclusion, such as reduced opportunities for employment and losing custody of children. Nongovernmental organizations, due to funding cuts, curtailed direct services such as support groups but became liaisons between clients and the state. They enforced new narratives of deservingness, such as the ability to define "good" behavior or reward social relationships with agency staff. Ukraine's current reforms to social safety net institutions present an opportunity to interrogate underlying assumptions about spheres of responsibility for the country's most marginalized and stigmatized groups.


Assuntos
Infecções por HIV , Preparações Farmacêuticas , Abuso de Substâncias por Via Intravenosa , Criança , Feminino , Humanos , Estigma Social , Ucrânia
17.
Disasters ; 45(4): 968-995, 2021 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-32613663

RESUMO

This study describes the application of multi-criteria decision analysis (MCDA) to prioritise the seismic risk mitigation of existing buildings in earthquake-prone Wellington, New Zealand. Through retrofitting or demolition, this is an important requirement in many cities around the Pacific Rim and in other high-level seismic hazard locations. The prioritisation strategy proposed here, based on MCDA methods, can provide decision-makers with a fast and reliable support tool for identifying the optimal sequencing of their retrofitting programmes. The premise of the MCDA analysis presented in this paper is that there are multiple criteria that determine societal prioritisation preferences; these are limited not just to life safety (often the explicit/exclusive priority of governments) and commercial value (the main concern of many building owners). The study demonstrates how different measures, within four general criteria-life safety and geo-spatial, economic, and socio-cultural roles-can be operationalised as a viable framework for establishing intervention policy priorities.


Assuntos
Terremotos , Cidades , Humanos , Nova Zelândia , Políticas
18.
Gynecol Oncol ; 160(1): 51-55, 2021 01.
Artigo em Inglês | MEDLINE | ID: mdl-33213899

RESUMO

OBJECTIVE: To describe oncologic outcomes after using acute normovolemic hemodilution (ANH) to reduce requirement for allogenic red blood cell transfusions (ABT) in patients undergoing primary debulking surgery (PDS) for advanced ovarian cancer. METHODS: We performed a post-hoc analysis of a recent prospective trial investigating the safety and feasibility of ANH during PDS for advanced ovarian cancer. We report long-term survival outcomes. We compared demographics, clinicopathological characteristics, survival outcomes in this cohort of Stage IIIB-IVB high-grade serous ovarian cancer patients undergoing ANH (ANH group), with a retrospective cohort of all other patients (standard group) undergoing PDS during the same time period (01/2012-04/2017). Standard statistical tests were used. RESULTS: There were no demographic or clinicopathological differences between ANH (n = 33) and standard groups (n = 360), except for higher median age at diagnosis (57 vs. 62 years, respectively; p = 0.044) and shorter operative time (357 vs. 446 min, respectively; p < 0.001) in the standard group. Cytoreductive outcomes (ANH vs. standard): 0 mm, 69.7 vs. 63.9%; gross residual disease (RD) ≤1 cm, 21.2 vs. 26.9%; >1 cm, 9.1 vs. 9.2% (p = 0.78). RD after PDS was the only independent factor associated with worse progression-free survival (PFS) on multivariable analysis (p < 0.001). Patients with BRCA mutations trended towards improved PFS (p = 0.057). Significant factors for overall survival (OS) on multivariable analysis: preoperative CA125 (p = 0.004), ascites (p = 0.018), RD after PDS (p = 0.04), BRCA mutation status (p < 0.001). After adjustment for potential confounders, ANH was not independently associated with PFS or OS [PFS: HR 0.928 (0.618-1.395); p = 0.721; OS: HR 0.588 (95%CI: 0.317-1.092); p = 0.093]. CONCLUSIONS: ANH is an innovative approach in intraoperative management. It was previously proven to decrease need for ABT while maintaining the ability to achieve complete gross resection and associated benefits.


Assuntos
Hemodiluição/métodos , Neoplasias Ovarianas/sangue , Neoplasias Ovarianas/cirurgia , Adulto , Idoso , Idoso de 80 Anos ou mais , Estudos de Coortes , Procedimentos Cirúrgicos de Citorredução/métodos , Transfusão de Eritrócitos , Feminino , Hemodiluição/efeitos adversos , Humanos , Pessoa de Meia-Idade , Estadiamento de Neoplasias , Neoplasias Ovarianas/patologia , Intervalo Livre de Progressão , Estudos Retrospectivos , Taxa de Sobrevida
19.
J Am Geriatr Soc ; 68(10): 2399-2406, 2020 10.
Artigo em Inglês | MEDLINE | ID: mdl-32880888

RESUMO

The incidence of most cancers increases with age. Cancer is the second most common cause of death in older adults after cardiovascular disease. Many common cancers in older adults can be prevented from occurring or can be identified at an early stage and treated effectively. The prevention and identification of cancer in its early stages, in an attempt to reduce discomfort and disability associated with advanced cancer and cancer treatment, is also a priority. Overscreening for cancer in older adults can lead to unnecessary diagnostic testing and unnecessary treatment. Both older adults and their healthcare providers need guidance on the appropriate use of cancer prevention and screening interventions. This first of a two-part review addresses special considerations regarding cancer prevention for adults aged 65 and older. Screening decisions and the impact of limited life expectancy and an older adult's ability to tolerate cancer treatment are also addressed. Guidance is provided regarding the prevention and early identification of lung, colorectal, bladder, and kidney cancer in older adults. The prevention of breast, prostate, and female urogenital cancers are addressed in Part 2. J Am Geriatr Soc 68:2399-2406, 2020.


Assuntos
Neoplasias Colorretais/prevenção & controle , Detecção Precoce de Câncer , Neoplasias Renais/prevenção & controle , Neoplasias Pulmonares/prevenção & controle , Neoplasias da Bexiga Urinária/prevenção & controle , Idoso , Idoso de 80 Anos ou mais , Feminino , Humanos , Masculino , Guias de Prática Clínica como Assunto
20.
J Am Geriatr Soc ; 68(11): 2684-2691, 2020 11.
Artigo em Inglês | MEDLINE | ID: mdl-32880894

RESUMO

The incidence of most cancers increase with age. Cancer is the second most common cause of death in older adults after cardiovascular disease. Many common cancers in older adults can be prevented from occurring or can be identified at an early stage and treated effectively. Although cancer is feared primarily because of premature mortality, for many older adults, preventing and identifying cancer in its early stages, in an attempt to reduce discomfort and disability associated with advanced cancer and cancer treatment, is also a priority. Overscreening for cancer in older adults can lead to unnecessary diagnostic testing and unnecessary treatment. Both older adults and their healthcare providers need guidance on the appropriate use of cancer prevention and screening interventions. This is the second part of a two-part clinical review on cancer prevention and screening for adults aged 65 and older. Guidance is provided regarding the prevention and early identification of breast, prostate, cervical, ovarian, and endometrial cancer. The prevention of lung, colorectal, bladder, and kidney cancer is addressed in Part 1.


Assuntos
Detecção Precoce de Câncer/métodos , Neoplasias dos Genitais Femininos/diagnóstico , Neoplasias dos Genitais Femininos/prevenção & controle , Programas de Rastreamento/métodos , Idoso , Neoplasias da Mama/epidemiologia , Neoplasias da Mama/prevenção & controle , Detecção Precoce de Câncer/efeitos adversos , Feminino , Neoplasias dos Genitais Femininos/epidemiologia , Humanos , Incidência , Masculino , Programas de Rastreamento/efeitos adversos , Uso Excessivo dos Serviços de Saúde , Neoplasias da Próstata/epidemiologia , Neoplasias da Próstata/prevenção & controle , Fatores de Risco , Programa de SEER/estatística & dados numéricos , Estados Unidos/epidemiologia
SELEÇÃO DE REFERÊNCIAS
DETALHE DA PESQUISA