Your browser doesn't support javascript.
loading
Mostrar: 20 | 50 | 100
Resultados 1 - 9 de 9
Filtrar
Más filtros











Base de datos
Intervalo de año de publicación
1.
Curr Oncol ; 31(9): 5027-5039, 2024 Aug 28.
Artículo en Inglés | MEDLINE | ID: mdl-39330000

RESUMEN

BACKGROUND: This investigation evaluated the predictive and prognostic efficacy of the newly developed global immune-nutrition-inflammation index (GINI) in patients with grade 4 adult-type diffuse gliomas, comparing it with other established indices such as the systemic immune-inflammation index (SII), systemic inflammation response index (SIRI), and pan-immune-inflammation value (PIV). METHOD: A retrospective cohort included 198 patients diagnosed with isocitrate dehydrogenase (IDH)-mutant gr4 (grade 4) astrocytoma and IDH-wt (wilde-type) glioblastoma (GBM) gr4 treated with surgical resection, radiotherapy, and temozolomide. Patients were stratified into two groups based on their GINI values: low GINI (<5815) and high GINI (≥5815). The primary endpoint was overall survival (OS). RESULTS: High GINI was significantly associated with older age, poor performance status, multifocal tumors, and higher SII, SIRI, and PIV values (p < 0.005). The GINI demonstrated strong correlations with SII (r = 0.694), SIRI (r = 0.516), and PIV (r = 0.657) (p < 0.001). Patients with high GINI exhibited poorer OS (5.0 vs. 17.0 months) and PFS (5.0 vs. 13.0 months) in comparison to those with low GINI. Kaplan-Meier survival analysis revealed significantly prolonged OS and PFS among patients with low GINI (p < 0.001). Multivariate analysis identified high GINI as an independent negative risk factor for both PFS and OS. CONCLUSIONS: GINI is a robust predictor of clinical outcomes in IDH-mutant gr4 astrocytoma and IDH-wt GBM gr4, highlighting the crucial impact of nutrition and cancer cachexia. It shows superior prognostic value relative to the SII, SIRI, and PIV.


Asunto(s)
Glioma , Inflamación , Humanos , Femenino , Masculino , Persona de Mediana Edad , Estudios Retrospectivos , Glioma/complicaciones , Glioma/mortalidad , Adulto , Neoplasias Encefálicas/complicaciones , Neoplasias Encefálicas/mortalidad , Pronóstico , Anciano , Clasificación del Tumor , Estado Nutricional , Valor Predictivo de las Pruebas
2.
Medicine (Baltimore) ; 103(28): e38913, 2024 Jul 12.
Artículo en Inglés | MEDLINE | ID: mdl-38996177

RESUMEN

The objective of this study was to assess the prognostic relevance of Stanniocalcin-2 (STC2) expression, as determined via immunohistochemistry in tumor tissue, in a cohort of 83 patients diagnosed with glioblastoma who underwent maximal safe surgical resection followed by radiotherapy concurrent with adjuvant temozolomide. STC2 expression levels were categorized using a 3-tiered semiquantitative system: negative expression (level 0-), low expression (level 1+), and high expression (levels 2 + and 3+). Patients were categorized into 2 distinct groups according to their STC2 expression levels: negative STC2 (-/+) and positive STC2 (++/+++). The primary outcome measure was the relationship between STC2 expression and progression-free survival (PFS), with overall survival (OS) serving as the secondary endpoint. Kaplan-Meier survival analysis confirmed that patients exhibiting high STC2 expression had significantly shorter OS (8 vs 20 months, P < .001) and PFS (6 vs 18 months, P < .001) than those with low or negative STC2 expression. Multivariate analysis revealed that STC2 expression was an independent prognostic factor for both OS (hazard ratio: 0.4; 95% confidence interval: 0.2-0.8; P < .05) and PFS (hazard ratio: 0.3; 95% confidence interval: 0.2-0.4; P < .05) in patients with glioblastoma. Furthermore, elevated STC2 expression in GBM was correlated with several established aggressive clinicopathological characteristics, including advanced age (≥65 years), low ECOG PS (≥2), and isocitrate dehydrogenase mutation negativity. These findings underscore that heightened STC2 expression within the tumor tissue of GBM patients functions as an adverse prognostic marker, correlating with an elevated risk of progression and reduced OS. Therapeutic interventions targeting the AKT-mTOR, ERK1-2, and mitogen-activated protein kinase pathways as well as immune checkpoint inhibitors and vascular endothelial growth factor blockade, as well as potential forthcoming antibody-drug conjugates targeting the STC2 molecule, have the potential to broaden the scope of combined treatment strategies.


Asunto(s)
Biomarcadores de Tumor , Neoplasias Encefálicas , Glioblastoma , Glicoproteínas , Péptidos y Proteínas de Señalización Intercelular , Humanos , Glioblastoma/metabolismo , Glioblastoma/mortalidad , Glioblastoma/genética , Glioblastoma/patología , Femenino , Masculino , Persona de Mediana Edad , Biomarcadores de Tumor/metabolismo , Glicoproteínas/metabolismo , Pronóstico , Anciano , Neoplasias Encefálicas/metabolismo , Neoplasias Encefálicas/mortalidad , Neoplasias Encefálicas/genética , Neoplasias Encefálicas/patología , Péptidos y Proteínas de Señalización Intercelular/metabolismo , Péptidos y Proteínas de Señalización Intercelular/genética , Adulto , Temozolomida/uso terapéutico , Estimación de Kaplan-Meier , Supervivencia sin Progresión , Estudios Retrospectivos , Antineoplásicos Alquilantes/uso terapéutico , Inmunohistoquímica
3.
Cureus ; 16(6): e62163, 2024 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-38993472

RESUMEN

BACKGROUND: The main goal of this study is to explore the prognostic and predictive implications of post-treatment thrombocytopenia on treatment efficacy and clinical outcomes in advanced-stage cancer treated with immune checkpoint inhibitors (ICIs). METHODS: This retrospective study included 102 patients with advanced-stage cancer who were treated with ICIs. The simultaneous administration of chemotherapy and ICIs was omitted; nevertheless, the selection of chemotherapy agents employed in different treatment lines was left to the discretion of the attending clinician. Patients were stratified into distinct cohorts based on their post-treatment platelet counts (evaluated for up to four to six months after the completion of ICI). The primary endpoint of interest was progression-free survival (PFS), and overall survival (OS) was the secondary endpoint. RESULTS: Patients with superior Eastern Cooperative Oncology Group (ECOG) performance status and those who received ICI as second-line treatment displayed markedly elevated incidences of grade 1 thrombocytopenia (p < 0.05). Kaplan-Meier survival analysis confirmed that patients with high-grade thrombocytopenia had significantly shorter PFS (six vs. 13 vs. 19 months, p < 0.0001) and OS (10 vs. 21 vs. 25 months, p < 0.0001) than those with lower grades or without thrombocytopenia, respectively. Multivariate analysis revealed that decreased platelet levels were a negative independent prognostic factor for both PFS and OS in patients with advanced-stage cancer who received ICIs. CONCLUSION: The results of this retrospective study suggest that a decline in platelet levels after treatment represents a dependable adverse prognostic biomarker for clinical outcomes. Moreover, a decrease in platelet levels has been linked to reduced treatment efficacy in advanced-stage cancer patients receiving ICIs, thereby providing valuable prognostic insights for the implementation of personalized treatment strategies in cancer immunotherapy.

4.
Cleft Palate Craniofac J ; 59(5): 637-643, 2022 05.
Artículo en Inglés | MEDLINE | ID: mdl-34098755

RESUMEN

AIM: The term frontonasal dysplasia (FND) represents a spectrum of anomalies and its genetics have not been well defined. Recently, the critical role of the aristaless-like homeobox (ALX) gene family on the craniofacial development has been discovered. In the present study, we aimed to propose a systematic surgical treatment plan for the ALX-related FNDs according to the genotypic classification as well as demonstrating their clinical characteristics to help surgeons diagnose the underlying pathology accurately. DESIGN: Single-institution retrospective. SETTING: Tertiary health care. PATIENTS AND METHODS: Eighty-nine FND cases were evaluated. Eight of them had ALX1-related FND3, 3 had ALX3-related FND1, and 2 had ALX4-related FND2. Phenotype characteristics of ALX-related FNDs were evaluated, and relevant surgical interventions were assessed. RESULTS: The ALX1-related FND3 phenotype is striking due to the involvement of the eyes in addition to the presence of hypertelorism, facial clefts, and nasal deformities. A widened philtrum and prominent philtral columns are remarkable features of the ALX3-related FND1, whereas the ALX4-related FND2 has more severe deformities: severe hypertelorism, brachycephaly, large parietal bone defects, broad nasal dorsum, and alopecia. Facial bipartition, box osteotomies, eyelid coloboma repair, cleft lip and palate repair, nasal reconstruction, and fronto-orbital advancement can be performed in ALX-related FNDs based on the characteristics of each subtype. CONCLUSIONS: This genetic classification system will help surgeon diagnose patients with FND with unique features and draw a roadmap for their treatment with a better surgical perspective.


Asunto(s)
Labio Leporino , Fisura del Paladar , Hipertelorismo , Labio Leporino/cirugía , Anomalías Craneofaciales , Cara/anomalías , Humanos , Hipertelorismo/genética , Hipertelorismo/cirugía , Estudios Retrospectivos
5.
J Cancer Res Ther ; 15(6): 1395-1397, 2019.
Artículo en Inglés | MEDLINE | ID: mdl-31898679

RESUMEN

Dermatomyositis (DM) is a malignancy-associated inflammatory connective tissue disease which involves muscles and skin. It accompanies many cancer types. Herein, we aimed to present a 42-year-old patient with primary signet ring cell ovarian carcinoma which has not been seen hitherto. Presentation with DM induces rapid and aggressive progression and emphasizes the importance of more comprehensive malignancy screening in these patients.


Asunto(s)
Carcinoma Epitelial de Ovario/complicaciones , Carcinoma Epitelial de Ovario/diagnóstico , Dermatomiositis/complicaciones , Neoplasias Ováricas/complicaciones , Neoplasias Ováricas/diagnóstico , Adulto , Biomarcadores , Biomarcadores de Tumor , Biopsia , Dermatomiositis/diagnóstico , Femenino , Humanos , Inmunohistoquímica , Linfocitos Infiltrantes de Tumor/inmunología , Linfocitos Infiltrantes de Tumor/metabolismo , Linfocitos Infiltrantes de Tumor/patología , Tomografía Computarizada por Tomografía de Emisión de Positrones , Tomografía Computarizada por Rayos X
6.
J BUON ; 21(5): 1153-1157, 2016.
Artículo en Inglés | MEDLINE | ID: mdl-27837617

RESUMEN

PURPOSE: The objective of this study was to preoperatively evaluate blood platelet to lymphocyte ratio (PLR) and neutrophil to lymphocyte ratio (NLR) for their prognostic value in patients with colorectal cancer (CRC). METHODS: We retrospectively reviewed 347 patients who underwent colorectal surgery for CRC in the Istanbul Education and Research Hospital and the Antalya Education and Research Hospital. The prognostic value of preoperative PLR, NLR, and other clinical and laboratory parameters was assessed with univariate and multivariate analysis. RESULTS: Median overall survival (OS) was 61.8 months [95% CI for hazard ratio (HR) 46.24-77.14]. Significant parameters in univariate analysis, which were the preoperative levels of carcinoembryonic antigen (CEA) (p=0.055), albumin (p=0.003), hemoglobin (p=0.012), PLR (p=0.004), and NLR (p=0.054) were assessed by multivariate analysis which showed that only albumin retained its significance (p=0.008). Median OS was 70.1 vs 44.8 months with PLR ? 180 vs PLR > 180 (log rank; p=0.005). Median OS was "Not reached" (NR) vs 43.5 months with NLR ? 3 vs NLR > 3 (log rank; p=0.012). CONCLUSIONS: This study showed that preoperative levels of CEA, albumin, PLR, and NLR have significant prognostic value for patients with CRC.


Asunto(s)
Plaquetas , Neoplasias Colorrectales/sangre , Linfocitos , Neutrófilos , Adulto , Anciano , Anciano de 80 o más Años , Biomarcadores de Tumor/sangre , Antígeno Carcinoembrionario/sangre , Neoplasias Colorrectales/mortalidad , Neoplasias Colorrectales/patología , Neoplasias Colorrectales/cirugía , Femenino , Humanos , Estimación de Kaplan-Meier , Recuento de Linfocitos , Masculino , Persona de Mediana Edad , Análisis Multivariante , Recuento de Plaquetas , Valor Predictivo de las Pruebas , Pronóstico , Modelos de Riesgos Proporcionales , Estudios Retrospectivos , Factores de Riesgo , Albúmina Sérica/análisis , Albúmina Sérica Humana , Factores de Tiempo , Turquía
7.
J Craniofac Surg ; 21(5): 1512-5, 2010 Sep.
Artículo en Inglés | MEDLINE | ID: mdl-20856041

RESUMEN

OBJECTIVE: The objective of this study was to review the outcome of surgical rehabilitation of nasoalveolar complex in patients with alveolar clefts. STUDY DESIGN: Twenty-seven patients (13 female, 14 male) with 4 bilateral and 23 unilateral alveolar clefts who were treated in our clinic during the period between 2002 and 2009 were included in the study. RESULTS: All the patients had oronasal fistulas, and all of them were closed successfully except one. Recurrence of the oronasal fistula was seen in 1 patient. Alar base was supported by onlay cortical bone in most of the patients. Eleven of the canines at the cleft site erupted after the operation in to the grafted area. Seventy-six percent (n = 16) of the 21 patients could be assigned to the successful groups 1 and 2, whereas 24% (n = 5) were assigned to the unfavorable group. There was not any insufficient result. CONCLUSIONS: Bone graft placed along the piriform margin and alar wings during alveolar bone grafting improves the results of nasal correction. Late grafting should be performed at least to support the alar base for nasal symmetry.


Asunto(s)
Proceso Alveolar/anomalías , Trasplante Óseo/métodos , Labio Leporino/cirugía , Fisura del Paladar/cirugía , Nariz/anomalías , Rinoplastia/métodos , Adolescente , Adulto , Proceso Alveolar/cirugía , Niño , Femenino , Humanos , Masculino , Nariz/cirugía , Complicaciones Posoperatorias , Colgajos Quirúrgicos , Resultado del Tratamiento
8.
Artículo en Inglés | MEDLINE | ID: mdl-16428216

RESUMEN

We report a case of auricular teratoma in a 2-month-old child. We could find no other report of a case of auricular teratoma, although there are a few reports of teratomas in various other parts of the ear.


Asunto(s)
Neoplasias del Oído/cirugía , Teratoma/cirugía , Neoplasias del Oído/patología , Oído Externo , Humanos , Lactante , Masculino , Teratoma/patología
9.
Microsurgery ; 23(6): 582-8, 2003.
Artículo en Inglés | MEDLINE | ID: mdl-14705075

RESUMEN

Experimental animal models need to be developed for studies of composite flaps that have often recently been used for defects of both bone and soft tissues. A consistent anatomy, simple surgical technique, and reliable blood flow are essential for the success of experimental flap studies. Here we propose a gluteus maximus-tensor fascia lata osteomuscle flap in rats as a model of these qualities. Gluteus maximus and tensor fascia lata muscles and the adjacent iliac bone segment were combined as a lateral circumflex femoral artery-based flap. To test the reliability of this composite flap, three types of composite tissues were harvested and replaced: osteomusculocutaneous flap, osteomuscle flap, and osteomuscle composite graft. The osteomusculocutaneous flap was elevated by including a skin island over the gluteal region. The osteomuscle graft was formed by deliberately dividing the vascular pedicle of the osteomuscle flap. Direct observation revealed complete necrosis of the skin islands in all osteomusculocutaneous flaps. Microangiography of the flap demonstrated that both muscles and the attached bone were supplied by the pedicle. Dye studies with nitro blue tetrazolium (NBT) and India ink demonstrated dye uptake in both muscle and bone components in osteomuscle flaps. Histological examinations also demonstrated the viability of both tissues only in the flap group. Bone scintigraphy performed in flaps on postoperative day 7 demonstrated radionuclide uptake, confirming perfusion of the bony segment. The gluteus maximus-tensor fascia lata osteomuscle flap is a reliable and simple model for composite flap studies that offers the following advantages: 1) it is a new composite flap which includes bone, 2) it can be dissected easily with the naked eye, without using the microscope, 3) it has a long pedicle for flap displacement, and 4) it is a small animal model.


Asunto(s)
Trasplante Óseo/métodos , Modelos Animales , Músculo Esquelético/trasplante , Colgajos Quirúrgicos/irrigación sanguínea , Animales , Biopsia con Aguja , Huesos/irrigación sanguínea , Huesos/diagnóstico por imagen , Huesos/patología , Fascia Lata/trasplante , Femenino , Rechazo de Injerto , Supervivencia de Injerto , Inmunohistoquímica , Masculino , Cintigrafía , Ratas , Ratas Wistar , Sensibilidad y Especificidad , Colgajos Quirúrgicos/patología
SELECCIÓN DE REFERENCIAS
DETALLE DE LA BÚSQUEDA