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1.
Int J Gynecol Cancer ; 2024 Jul 01.
Artículo en Inglés | MEDLINE | ID: mdl-38955373

RESUMEN

OBJECTIVE: To investigate the prevalence and patterns of social media use among gynecologic oncologists for professional and academic purposes. METHODS: A prospective online survey between November and December 2022 targeted gynecologic oncology practitioners (gynecologic oncologists, surgical oncologists, medical oncologists, radiation/clinical oncologists, and onco-pathologists/pathologists). The survey, distributed via various social media platforms, included 40 questions to capture qualitative and quantitative data on social media use. RESULTS: Of 131 respondents from 32 countries, 106 (80.9%) were gynecologic oncologists and affiliated with academic institutions (84.7%). Facebook (n=110, 83.9%), Twitter (n= 108, 82.4%), and Instagram (n=100, 76.3%) were the most used platforms. Respondents used social media to stay updated (n=101, 77.1%), network (n=97, 74%), learn about conferences and webinars (n=97, 74%), and engage in academic discussions (n=84, 64.1%). Following the COVID-19 pandemic, 100/129 (77.5%) reported increased social media use. However, only 32 (24.4%) used it to connect with patients, and concerns were raised about privacy and the need for separate professional and personal accounts. A quarter of respondents hesitated to share their opinions on social media due to the fear of controversy, with 26 (20%) experiencing cyberbullying, yet 120/130 (92.3%) believed it enabled junior professionals to express their views. Concerns about differentiating valid content, information reliability, and the professional perception of sourcing knowledge from social media were noted. Gender, age, specialty, and income level influenced patterns of social media use, with variations in preferences for platforms, content engagement, and purposes, highlighting a complex landscape of social media interaction among gynecologic oncologists. CONCLUSION: While the use of social media among gynecologic oncologists is prevalent, particularly for academic and professional development, challenges such as cyberbullying, privacy concerns, and the need for formal training in social media navigation persist. Tailored training programs and guidelines could enhance social media's effective and ethical use in this field, promoting a safe environment for professional expression and engagement.

2.
Gynecol Oncol ; 179: 145-151, 2023 Dec.
Artículo en Inglés | MEDLINE | ID: mdl-37980769

RESUMEN

OBJECTIVE: Sistematic pelvic and para-aortic lymphadenectomy is part of the staging surgery for early-stage epithelial ovarian cancer, with no therapeutic value. The Mapping Sentinel Lymph Nodes In Early-Stage Ovarian Cancer (MELISA) trial prospectively assessed the SLN detection rate and the diagnostic accuracy of the SLN mapping technique in patients with early-stage epithelial ovarian cancer. METHODS: This prospective, single-arm study included patients diagnosed with early-stage epithelial ovarian cancer (FIGO stages I and II), via either primary surgery or re-staging surgery. SLN mapping was performed by injecting 0.2 mL of 37-mBq 99mTc-nanocoloid albumin and 2 mL of 2.5 mg/mL indocyanine green into the infundibulopelvic and utero-ovarian ligaments. After removal of SLNs, a complete systematic pelvic and para-aortic lymphadenectomy was performed. SLN Ultrastaging analysis was applied. The primary outcome was the overall SLN detection rate, either with one or both tracers. Secondary outcomes were the diagnostic accuracy of detecting lymph node metastases and factors that may influence SLN detection. RESULTS: Thirty patients were included. SLNs were identified in 27 patients (90%). Detection rates in primary and re-staging surgery were 89% and 92%, respectively. Para-aortic drainage was the predominant lymphatic spread, observed in 26 of 27 patients. Ultrastaging pathologic reports listed 1 SLN with macrometastasis, 1 with micrometastasis, and 5 with isolated tumor cells; the sensitivity of SLN mapping was 100%, with a false-negative rate of 0%. Univariate analysis showed a nonsignificant higher proportion of patients with uterine fibroids, adenomyosis, and endometriosis (100%, 67%, 67%, respectively) in patients in whom SLNs were not detected. CONCLUSION: SLN mapping has a high detection rate (90%) and is an accurate technique for detecting lymph node involvement in early-stage epithelial ovarian cancer. SLN mapping is a potential alternative to systematic lymphadenectomy to reduce associated morbidity, but further research is needed to evaluate the impact of SLN mapping on oncologic outcomes and its cost-effectiveness.


Asunto(s)
Neoplasias Ováricas , Ganglio Linfático Centinela , Femenino , Humanos , Carcinoma Epitelial de Ovario/cirugía , Carcinoma Epitelial de Ovario/patología , Verde de Indocianina , Escisión del Ganglio Linfático , Ganglios Linfáticos/cirugía , Ganglios Linfáticos/patología , Estadificación de Neoplasias , Neoplasias Ováricas/cirugía , Neoplasias Ováricas/patología , Estudios Prospectivos , Ganglio Linfático Centinela/cirugía , Ganglio Linfático Centinela/patología , Biopsia del Ganglio Linfático Centinela/métodos
3.
Q J Nucl Med Mol Imaging ; 67(1): 37-45, 2023 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-32077670

RESUMEN

BACKGROUND: In endometrial cancer (EC), sentinel lymph node (SLN) mapping has emerged as an alternative to systematic lymphadenectomy. Little is known about factors that might influence SLN preoperative detection. The aim of our study was to evaluate the clinical and technical variables that may influence on the success of SLN detection in preoperative lymphatic mapping in patients with intermediate and high-risk EC when performing transvaginal ultrasound-guided myometrial injection of radiotracer (TUMIR). METHODS: Between March 2006 and March 2017, we prospectively enrolled patients with histologically confirmed EC with intermediate or high-risk of lymphatic involvement. All women underwent SLN detection by using TUMIR approach. After radiotracer injection, pelvic and abdominal planar and SPECT/CT images were acquired to obtain a preoperative lymphoscintigraphic mapping. Pattern of drainage was registered and analyzed to identify the factors directly involved in drainage. Sonographer learning curves to perform TUMIR approach were created following Cumulative Sum and Wright methods. Univariate and multivariate analyses were performed using logistic regression. RESULTS: During study period, 123 patients were included. SLN preoperative detection rate was 70.7%. Age under 75 years at diagnosis (P<0.01), radiotracer injection above 4 mL -high-volume- (P<0.01), and tumoral size below 2 cm (P=0.04) were associated with higher SLN preoperative detection rate. Twenty-five procedures were necessary to attain an adequate performance in TUMIR approach. CONCLUSIONS: The higher SLN preoperative detection rate in women with intermediate and high-risk endometrial cancer after TUMIR approach was related with younger age, smaller tumors and high-volume injection of radiotracer. Sonographers are required to perform 25 procedures before acquiring an expertise in radiotracer injection.


Asunto(s)
Neoplasias Endometriales , Ganglio Linfático Centinela , Humanos , Femenino , Anciano , Ganglio Linfático Centinela/diagnóstico por imagen , Ganglio Linfático Centinela/patología , Ganglio Linfático Centinela/cirugía , Biopsia del Ganglio Linfático Centinela/métodos , Escisión del Ganglio Linfático , Neoplasias Endometriales/diagnóstico por imagen , Neoplasias Endometriales/cirugía , Neoplasias Endometriales/patología , Linfocintigrafia , Ganglios Linfáticos/patología , Estadificación de Neoplasias
4.
Int J Gynecol Cancer ; 33(1): 50-56, 2023 01 03.
Artículo en Inglés | MEDLINE | ID: mdl-36446410

RESUMEN

OBJECTIVE: Our study aimed to evaluate the association between timing of cytoreductive surgery and pattern of presentation of the first recurrence in patients with advanced ovarian cancer. We also aimed to assess the impact of the pattern of recurrence on post-relapse overall survival according to surgical timing. METHODS: This retrospective multicenter study evaluated patients with International Federation of Gynecology and Obstetrics (FIGO) stage IIIC-IV ovarian cancer. Patients had undergone either primary debulking surgery, early interval debulking surgery after 3-4 cycles of neoadjuvant chemotherapy, or delayed debulking surgery after 6 cycles, with minimal or no residual disease, between January 2008 and December 2015. Survival analyses were conducted using the Log-rank test and the Cox model. Cumulative incidences of the different patterns of recurrence were estimated using a competing risks methodology. RESULTS: A total of 549 patients were included: 175 (31.9%) patients had primary, 224 (40.8%) early interval, and 150 (27.3%) delayed debulking surgery. The cumulative incidence of peritoneal recurrences at 2 years was higher with increasing neoadjuvant cycles (24.4%, 30.9% and 39.2%; p=0.019). For pleural or pulmonary recurrences, it was higher after early interval surgery (9.9%, 13.0% and 4.1%; p=0.022). Median post-relapse overall survival was 33.5 months (95% confidence interval (CI) (24.3 to 44.2)), 26.8 months (95% CI (22.8 to 32.6)), and 24.5 months (95% CI (18.6 to 29.4)) for primary, early interval, and delayed debulking surgery groups, respectively (p=0.025). The pattern of recurrence in a lymph node (hazard ratio (HR) 0.42, 95% CI (0.27 to 0.64)), delayed surgery (HR 1.53, 95% CI (1.11 to 2.13)) and time to first recurrence (HR 0.95, 95% CI (0.93 to 0.96)) were associated with post-relapse overall survival. For primary and early interval surgery, lymph node recurrences were associated with significantly longer post-relapse overall survival. CONCLUSIONS: The pattern of first recurrence was associated with timing of surgery, with peritoneal recurrences being more frequent with the increasing number of cycles of neoadjuvant chemotherapy. Lymph node recurrences were associated with better prognosis, having higher post-relapse overall survival. This improved prognosis of lymphatic recurrences was not observed in patients who underwent delayed surgery.


Asunto(s)
Neoplasias Ováricas , Humanos , Femenino , Neoplasias Ováricas/tratamiento farmacológico , Neoplasias Ováricas/cirugía , Neoplasias Ováricas/patología , Estadificación de Neoplasias , Recurrencia Local de Neoplasia/patología , Carcinoma Epitelial de Ovario/patología , Pronóstico , Terapia Neoadyuvante , Estudios Retrospectivos , Procedimientos Quirúrgicos de Citorreducción/métodos , Quimioterapia Adyuvante
5.
Gynecol Oncol ; 166(1): 8-17, 2022 07.
Artículo en Inglés | MEDLINE | ID: mdl-35568582

RESUMEN

OBJECTIVE: To assess the impact on survival of major postoperative complications and to identify the factors associated with these complications in patients with advanced ovarian cancer after cytoreductive surgery. METHODS: We designed a retrospective multicenter study collecting data from patients with IIIC-IV FIGO Stage ovarian cancer who had undergone either primary debulking surgery (PDS), early interval debulking surgery (IDS) after 3-4 cycles of neoadjuvant chemotherapy, or delayed debulking surgery (DDS) after 6 cycles, with minimal or no residual disease, from January 2008 to December 2015. Univariable and multivariable analyses were conducted to identify factors associated with major surgical complications (≥Grade 3). We assessed disease-free survival (DFS) and overall survival (OS) rates according to the occurrence of major postoperative complications. RESULTS: 549 women were included. The overall rate of major surgical complications was 22.4%. Patients who underwent PDS had a higher rate of major complications (28.6%) than patients who underwent either early IDS (23.2%) or DDS (14.0%). Multivariable analysis revealed that extensive peritonectomy and surgical timing were associated with the occurrence of major complications. Median DFS and OS were 16.9 months (95%CI = [13.7-18.4]) and 48.0 months (95%CI = [37.2-73.1]) for the group of patients with major complications, and 20.1 months (95%CI = [18.6-22.4]) and 56.7 months (95%CI = [51.2-70.4]) for the group without major complications. Multivariable analysis revealed that major surgical complications were significantly associated with DFS, but not with OS. CONCLUSIONS: Patients who experienced major surgical complications had reduced DFS, compared with patients without major morbidity. Extensive peritonectomy and surgical timing were predictive factors of postoperative morbidity.


Asunto(s)
Procedimientos Quirúrgicos de Citorreducción , Neoplasias Ováricas , Carcinoma Epitelial de Ovario/tratamiento farmacológico , Carcinoma Epitelial de Ovario/cirugía , Quimioterapia Adyuvante , Procedimientos Quirúrgicos de Citorreducción/efectos adversos , Femenino , Humanos , Terapia Neoadyuvante , Estadificación de Neoplasias , Neoplasias Ováricas/patología , Complicaciones Posoperatorias/tratamiento farmacológico , Complicaciones Posoperatorias/epidemiología , Estudios Retrospectivos
6.
Int J Gynecol Cancer ; 31(5): 679-685, 2021 05.
Artículo en Inglés | MEDLINE | ID: mdl-33649157

RESUMEN

INTRODUCTION: The objective was to evaluate whether hybrid imaging combining single photon emission tomography with computed tomography (SPECT/CT) provides additional clinical value for dectection of sentinel lymph nodes (SLNs) compared with intraoperative combined mapping in uterine and cervical malignancies. METHODS: This was a retrospective study of prospectively collected data from patients with stages IA-IB2 cervical cancer (International Federation of Gynecology and Obstetrics (FIGO) 2018) or stage I endometrial cancer, who underwent preoperative SPECT/CT for SLN detection. All included patients had dual injection of technetium-99m (99mTc) with patent blue or indocyanine green. RESULTS: A total of 171 patients were included with 468 SLNs detected during surgery: 146/171 patients (85.4%) had both radiotracer and blue injection whereas 25/171 patients (14.6%) had radiotracer and indocyanine green injected. The overall detection rate was 95.3%. The detection rate of SLN mapping was 74.9% for SPECT/CT, 90.6% for 99mTc, 91.8% for blue dye, and 100% for indocyanine green. Bilateral drainage was found in 140 patients (81.9%), detected by 99mTc in 105 patients (61.4%), by blue in 99 patients (67.3%), by indocyanine green in 23 patients (92%), and by SPECT/CT in 62 patients (36.4%). Atypical SLN locations were identified by SPECT/CT in 64 patients (37.4%), by 99mTc in 28 patients (16.4%), by blue in 17 patients (9.9%), and by indocyanine green in 8 patients (4.7%). Sensitivity and negative predictive value of SLN biopsy to detect lymph node metastasis using dual injection of different intraoperative combined techniques were 88.9% and 97.5%, respectively. CONCLUSION: SPECT/CT enhanced topographic delineation of SLN and more accurately identified drainage to atypical locations. Fluorescent SLN mapping using indocyanine green offered the highest SLN detection rate. When indocyanine green was used, SPECT/CT did not increase SLN detection, and did not add further information to improve lymph node localization and removal.


Asunto(s)
Neoplasias Endometriales/diagnóstico por imagen , Ganglio Linfático Centinela/diagnóstico por imagen , Neoplasias del Cuello Uterino/diagnóstico por imagen , Adulto , Anciano , Anciano de 80 o más Años , Colorantes/administración & dosificación , Neoplasias Endometriales/patología , Femenino , Humanos , Linfocintigrafia/métodos , Persona de Mediana Edad , Radiofármacos/administración & dosificación , Estudios Retrospectivos , Ganglio Linfático Centinela/patología , Ganglio Linfático Centinela/cirugía , Tomografía Computarizada por Tomografía Computarizada de Emisión de Fotón Único , Neoplasias del Cuello Uterino/patología
7.
Arch Gynecol Obstet ; 303(5): 1295-1304, 2021 05.
Artículo en Inglés | MEDLINE | ID: mdl-33389113

RESUMEN

PURPOSE: The aim of our study was to assess concordance of staging laparoscopy and cytoreductive surgery (CRS) peritoneal cancer index (PCI) when applying a two-step surgical protocol. We also aimed to evaluate the accuracy of diagnostic laparoscopy to triage patients for complete cytoreduction, and to define optimal time between staging laparoscopy and CRS. METHODS: We designed a retrospective review of prospectively collected data from patients with advanced ovarian cancer who underwent a diagnostic laparoscopy followed by a CRS a few weeks later (two-step surgical protocol), from January 2010 to April 2019. Only patients selected for complete cytoreduction, and with available PCI score from both surgeries were included. PCI concordance was assessed using intraclass correlation coefficient (ICC). RESULTS: During the study period 543 patients underwent a laparoscopic staging for ovarian carcinomatosis. Among them, 43 patients fulfilled inclusion criteria. ICC between laparoscopic and laparotomic PCI was 0.54. After applying the linear regression equation: laparoscopic PCI + 0.2 x [days between surgeries] + 2, ICC increased to 0.79. Completeness cytoreduction score and laparoscopic PCI were significantly associated (OR 1.27, 95% CI 1.03-1.57, p = 0.03). AUC of laparoscopic PCI to predict complete cytoreduction was 0.90. CONCLUSION: Concordance between laparoscopic PCI assessment and PCI score at the end of CRS is fair within a two-step surgical management. Laparoscopic assessment underestimates final PCI score by two points, and this difference increases with the delay between both surgeries. Diagnostic laparoscopy can adequately select patients for CRS, and optimal time to perform it is no more than 10 days after laparoscopy.


Asunto(s)
Procedimientos Quirúrgicos de Citorreducción/métodos , Laparoscopía/métodos , Laparotomía/métodos , Neoplasias Ováricas/cirugía , Neoplasias Peritoneales/cirugía , Anciano , Femenino , Humanos , Persona de Mediana Edad , Neoplasias Ováricas/patología , Neoplasias Peritoneales/patología , Estudios Prospectivos , Estudios Retrospectivos
8.
Int J Gynecol Cancer ; 30(3): 358-363, 2020 03.
Artículo en Inglés | MEDLINE | ID: mdl-31911532

RESUMEN

INTRODUCTION: Sentinel lymph node (SLN) detection has been shown to be accurate in detecting lymph node involvement in early-stage cervical cancer. The objective of this study was to evaluate the accuracy of frozen section examination in the assessment of SLN status, with the aim of adequately driving the intra-operative decision. METHODS: We designed a retrospective study including patients from two comprehensive cancer centers between January 2001 and December 2018 with early-stage cervical cancer (IA1-IB2 according to International Federation of Gynecology and Obstetrics (FIGO) 2018) undergoing SLN dissection. The SLN procedure was performed using a cervical injection with technetium-99m combined with blue dye or indocyanine green in most cases. RESULTS: A total of 176 patients fulfilled inclusion criteria. Bilateral mapping was detected in 153 (86.7%) of them. Nineteen of these patients (12.4%) had SLN involvement: 13 with macrometastases, three with micrometastases and three with isolated tumor cells (ITC). Macrometastatic disease was missed on frozen section in 3/13 FIGO 2018 stage IIIC patients. The three patients with ITC were also missed by frozen section examination.Considering only macrometastases as lymph node involvement, frozen section sensitivity was 76.9% (95% CI 49.7 to 91.8) and negative predictive value (NPV) was 97.9% (95% CI 94.0 to 99.3) in patients with bilateral detection. Including micrometastases, sensitivity was 81.2% (95% CI 57.0 to 93.4) and NPV remained at 97.9% (95% CI 93.9 to 99.3). CONCLUSIONS: With a prevalence of final-stage IIIC in patients with pre-operative early-stage cervical cancer of the order of 10% in this series, the NPV of frozen section examination of SLN is very high, with an inferior limit of the CI superior to 94%. Diagnostic accuracy remains acceptable even if micrometastases are considered. The impact of missed ITC has not been established. Frozen section examination can be incorporated in the intra-operative decision algorithm.


Asunto(s)
Secciones por Congelación/métodos , Ganglio Linfático Centinela/patología , Neoplasias del Cuello Uterino/patología , Neoplasias del Cuello Uterino/cirugía , Adulto , Algoritmos , Toma de Decisiones , Femenino , Humanos , Ganglios Linfáticos/patología , Ganglios Linfáticos/cirugía , Metástasis Linfática , Estadificación de Neoplasias , Estudios Retrospectivos , Ganglio Linfático Centinela/cirugía , Biopsia del Ganglio Linfático Centinela/métodos
9.
Int J Gynecol Cancer ; 30(2): 233-240, 2020 02.
Artículo en Inglés | MEDLINE | ID: mdl-31796531

RESUMEN

BACKGROUND: Pelvic exenteration and its reconstructive techniques have been associated with high postoperative morbidity and a negative impact on patient quality of life. The aim of our study was to compare postoperative complications and quality of life in patients undergoing continent compared with non-continent urinary diversion after pelvic exenteration for gynecologic malignancies. METHODS: We designed a multicenter study of patients from 10 centers who underwent an anterior or total pelvic exenteration with urinary reconstruction for histologically confirmed persistent or recurrent gynecologic malignancy after previous treatment with radiotherapy. From January 2005 to September 2008, we included patients retrospectively, and from September 2008 to May 2009, patients were included prospectively which allowed collection of quality of life data. Demographic, surgical, and follow-up data were analyzed. Postoperative complications were classified according to the Clavien-Dindo classification. Quality of life was assessed using the European Organization for Research and Treatment of Cancer (EORTC)-QLQ-C30 (V.3.0) and EORTC-QLQ-OV28 quality of life questionnaires. We compared patients who underwent a continent urinary diversion with those who underwent a non-continent reconstruction. RESULTS: We included 148 patients, 92 retrospectively and 56 prospectively. Among them, 77.4% had recurrent disease and 22.6% persistent disease after the primary treatment. In 70 patients, a urinary continent diversion was performed, and 78 patients underwent a non-continent diversion. Median age of the continent and incontinent groups was 53.5 (range 33-78) years and 57 (26-79) years, respectively. There were no significant differences between the continent and non-continent groups in median length of hospitalization (28.5 vs 26 days, P=0.19), postoperative grade III-IV complications (42.9% vs 42.3%, P=0.95), complications needing surgical (27.9% vs 34.6%, P=0.39) or radiological (14.7% vs 12.8%, P=0.74) intervention, and complication type (digestive (23.2% vs 16.7%, P=0.32) and urinary (15.9% vs 16.7%, P=0.91)). There were no significant differences between the groups in global health, global quality of life, and body image perception scores 1 year after surgery. CONCLUSION: Continent and incontinent urinary reconstructions are equivalent in terms of postoperative complications and quality of life scores.


Asunto(s)
Neoplasias de los Genitales Femeninos/cirugía , Exenteración Pélvica/estadística & datos numéricos , Derivación Urinaria/estadística & datos numéricos , Adulto , Anciano , Femenino , Francia/epidemiología , Neoplasias de los Genitales Femeninos/fisiopatología , Neoplasias de los Genitales Femeninos/psicología , Humanos , Persona de Mediana Edad , Exenteración Pélvica/efectos adversos , Complicaciones Posoperatorias/epidemiología , Complicaciones Posoperatorias/etiología , Estudios Prospectivos , Calidad de Vida , Estudios Retrospectivos , Derivación Urinaria/efectos adversos
10.
Int J Gynecol Cancer ; 29(2): 382-391, 2019 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-30674567

RESUMEN

OBJECTIVE: The aim of our study was to assess the incidence and identify the predictive risk factors of acute kidney injury after cytoreductive surgery and cisplatin-based hyperthermic intra-peritoneal chemotherapy. METHODS: This is a retrospective study from two centers evaluating patients with advanced or recurrent ovarian cancer who underwent cytoreductive surgery followed by cisplatin-based hyperthermic intra-peritoneal chemotherapy from January 2007 to December 2013. Patients were classified into two groups according to the occurrence of acute kidney injury, defined as a glomerular filtration rate at post-operative day 7 25% lower than at day 0. We also evaluated acute kidney injury following Risk, Injury, Failure, Lost and End-stage kidney function criteria. Univariate and multivariate analyses were conducted in order to assess the association between different variables and the occurrence of acute kidney injury. RESULTS: Sixty-six patients were included: 29 (44%) underwent first-line treatment and 37 (56%) were treated for recurrent disease. The incidence of post-operative acute kidney injury was 48%. After multivariate analysis, hypertension (OR 18.6; 95% CI 1.9 to 182.3; p=0.012) and low intra-operative diuresis (OR 0.5; 95% CI 0.4 to 0.8; p=0.001) were associated with acute kidney injury. CONCLUSION: The incidence of acute kidney injury after cytoreductive surgery and cisplatin-based hyperthermic intra-peritoneal chemotherapy was high. Hypertension and low intra-operative diuresis were independent risk factors for this complication. Adequate peri-operative hydration, in order to maintain correct diuresis, could decrease the occurrence of acute kidney injury in patients undergoing cytoreductive surgery plus hyperthermic intra-peritoneal chemotherapy.

11.
J Ultrasound Med ; 38(6): 1459-1476, 2019 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-30269384

RESUMEN

OBJECTIVES: To compare the robustness of several methods based on quantitative ultrasound (US) texture analysis to evaluate its feasibility for extracting features from US images to use as a clinical diagnostic tool. METHODS: We compared, ranked, and validated the robustness of 5 texture-based methods for extracting textural features from US images acquired under different conditions. For comparison and ranking purposes, we used 13,171 non-US images from widely known available databases (OUTEX [University of Oulu, Oulu, Finland] and PHOTEX [Texture Lab, Heriot-Watt University, Edinburgh, Scotland]), which were specifically acquired under different controlled parameters (illumination, resolution, and rotation) from 103 textures. The robustness of those methods with better results from the non-US images was validated by using 666 fetal lung US images acquired from singleton pregnancies. In this study, 2 similarity measurements (correlation and Chebyshev distances) were used to evaluate the repeatability of the features extracted from the same tissue images. RESULTS: Three of the 5 methods (gray-level co-occurrence matrix, local binary patterns, and rotation-invariant local phase quantization) had favorably robust performance when using the non-US database. In fact, these methods showed similarity values close to 0 for the acquisition variations and delineations. Results from the US database confirmed robustness for all of the evaluated methods (gray-level co-occurrence matrix, local binary patterns, and rotation-invariant local phase quantization) when comparing the same texture obtained from different regions of the image (proximal/distal lungs and US machine brand stratification). CONCLUSIONS: Our results confirmed that texture analysis can be robust (high similarity for different condition acquisitions) with potential to be included as a clinical tool.


Asunto(s)
Enfermedades Pulmonares/diagnóstico por imagen , Enfermedades Pulmonares/fisiopatología , Pulmón/diagnóstico por imagen , Pulmón/fisiopatología , Ultrasonografía Prenatal/métodos , Estudios de Evaluación como Asunto , Estudios de Factibilidad , Femenino , Humanos , Pulmón/embriología , Enfermedades Pulmonares/embriología , Embarazo , Reproducibilidad de los Resultados
12.
Fetal Diagn Ther ; 46(2): 88-96, 2019.
Artículo en Inglés | MEDLINE | ID: mdl-30293072

RESUMEN

OBJECTIVE: To develop a model combining clinical and sonographic features to predict the risk of cesarean delivery after the induction of labor (IOL). METHODS: We designed a prospective observational study involving women admitted for IOL. The main outcome was defined as cesarean delivery due to failed IOL or arrest of labor. Several clinical and ultrasonographic variables were collected. Seventy percent of the sample was used to build the predictive model, using stepwise logistic regression, while the remaining sample was used for validation. The final model was estimated and calibrated using all participants. RESULTS: We analyzed 477 pregnancies. The main outcome occurred in 102/477 (21.4%) women. The final model included previous vaginal delivery (odds ratio [OR] 0.088; 95% confidence interval [CI] 0.04-0.21), height (OR 0.904; 95% CI 0.87-0.94), body mass index before delivery (OR 1.084; 95% CI 1.02-1.15), ultrasonographic estimated fetal weight (OR 3.965; 95% CI 2.18-7.22), and ultrasonographic cervical length (OR 1.065; 95% CI 1.04-1.09) as predictors. Area under the receiver operating characteristics curve was 0.826 (95% CI 0.78-0.87). For a 5% false-positive rate, the sensitivity, specificity, and positive and negative likelihood ratios were 44.1%, 94.9%, 8.7, and 0.59, respectively. CONCLUSION: Our model combining clinical and ultrasonographic features might offer individualized counseling regarding risk of cesarean delivery to women who are candidates for IOL.


Asunto(s)
Cesárea/estadística & datos numéricos , Trabajo de Parto Inducido/efectos adversos , Modelos Teóricos , Área Bajo la Curva , Índice de Masa Corporal , Medición de Longitud Cervical , Cuello del Útero/diagnóstico por imagen , Intervalos de Confianza , Femenino , Peso Fetal , Humanos , Oportunidad Relativa , Valor Predictivo de las Pruebas , Embarazo , Curva ROC , Factores de Riesgo , Ultrasonografía Prenatal
13.
Rev Med Suisse ; 15(668): 1920-1924, 2019 Oct 23.
Artículo en Francés | MEDLINE | ID: mdl-31643152

RESUMEN

Both cesarean surgery and induction of labor have become common procedures performed in all labor wards in an attempt to reduce adverse obstetrical and neonatal outcomes. Thus, recent evidence, led by the ARRIVE Trial, demonstrated that elective induction at 39 weeks reduced the rates of cesarean deliveries and of hypertensive disorders of pregnancy. However, some concerns must be addressed, as the benefits of universal policies have to be outweighed with the current circumstances of implementation, the economic impact, the number of procedures needed to effectively reduce complications, and, above all, women's perception towards this approach. Therefore, it would be interesting to explore individualization strategies, instead of general recommendations, to offer personalized care.


Afin de réduire les complications obstétricales et néonatales, la césarienne ainsi que le déclenchement de l'accouchement sont souvent pratiqués. Récemment, l'étude ARRIVE a démontré que le déclenchement à 39 semaines d'aménorrhée (SA) permet de diminuer le taux de césariennes et de complications hypertensives de la grossesse. Il reste à déterminer les avantages d'une recommandation universelle dans les circonstances actuelles, son impact économique, le nombre de déclenchements nécessaire pour réduire efficacement le taux des complications obstétricales et, surtout, la perception des femmes à l'égard de cette procédure. Finalement, il serait plus intéressant de développer des stratégies individualisées de prise en charge plutôt que des recommandations globales, afin d'offrir une prise en charge la plus personnalisée possible.


Asunto(s)
Cesárea , Ensayos Clínicos como Asunto , Trabajo de Parto Inducido , Obstetricia/métodos , Obstetricia/normas , Cesárea/psicología , Cesárea/normas , Procedimientos Quirúrgicos Electivos/psicología , Procedimientos Quirúrgicos Electivos/normas , Femenino , Humanos , Trabajo de Parto Inducido/psicología , Trabajo de Parto Inducido/normas , Embarazo , Resultado del Embarazo
14.
Curr Treat Options Oncol ; 19(12): 73, 2018 11 09.
Artículo en Inglés | MEDLINE | ID: mdl-30411170

RESUMEN

OPINION STATEMENT: The main advancement in the surgical treatment of early cervical cancer has been a de-escalation in the radical surgical approach of early stage disease. Similarly, sentinel lymph node detection with cervical tracer injection can be performed alone in microscopic tumors (stage IA) while additional lymphadenectomy is still performed in macroscopic tumors (IB1 and IIA). Parametrial resection has been progressively reduced in tumors less than 2 cm, and simple procedures, conservative (trachelectomy) or not (simple hysterectomy), are currently being evaluated in several phase III trials. Since the preliminary results of the LACC (locally advanced cervical cancer) trial, the value of minimally invasive surgery as the standard approach for the treatment of early stage cervical cancer has been questioned and patients should be aware when discussing the approach for radical hysterectomy. While awaiting the results of ongoing clinical trials comparing radiological and surgical staging in locally advanced cervical cancer patients, surgical staging with paraaortic lymphadenectomy remains the standard of care before definitive chemoradiotherapy in patients with negative aortic PET/TDM. Patients undergoing salvage surgeries for isolated pelvic recurrences of cervical cancer benefit from advanced reconstructive techniques as DIEP flaps and continent reconstructive urinary techniques. In selected patients, a minimally invasive approach can be considered. Surgery is the mainstay of the treatment of endometrial cancer. The major evolution in surgical strategy has occurred in lymph node staging. The standard surgical staging includes pelvic and paraaortic lymph node dissection to the level of the left renal vein. Sentinel lymph node dissection has been validated as a less morbid alternative of systematic lymphadenectomy, indicated in patients with low and intermediate risk of lymph node involvement. In advanced ovarian cancer, complete cytoreduction is the main objective of surgery. To achieve this goal, upper abdominal complex procedures have been developed. Best survival rates are obtained with primary debulking surgery. Exploratory laparoscopy may be performed before cytoreduction to evaluate resectability and thus avoid unnecessary laparotomy. Although systematic pelvic and paraaortic lymphadenectomy is being questioned in patients with advanced ovarian cancer and clinically negative lymph nodes undergoing complete primary debulking surgery, this procedure is still recommended. While waiting publication of the GOG 252 trial, IP chemotherapy after complete CRS is under debate. HIPEC after interval debulking surgery in patients undergoing complete cytoreduction is an intriguing new option. Patients within the first recurrence of ovarian cancer, with score AGO-positive, benefit from a second complete cytoreductive surgery followed by chemotherapy. Ovarian cancer survival rates are higher in specialized high-volume centers, and thus cases should be centralized and quality indicators used.


Asunto(s)
Neoplasias Endometriales/cirugía , Neoplasias Ováricas/cirugía , Ganglio Linfático Centinela/patología , Neoplasias del Cuello Uterino/cirugía , Procedimientos Quirúrgicos de Citorreducción/efectos adversos , Procedimientos Quirúrgicos de Citorreducción/métodos , Femenino , Humanos , Escisión del Ganglio Linfático , Ganglios Linfáticos/patología , Metástasis Linfática/patología , Procedimientos Quirúrgicos Mínimamente Invasivos/efectos adversos , Procedimientos Quirúrgicos Mínimamente Invasivos/métodos
15.
Fetal Diagn Ther ; 43(2): 105-112, 2018.
Artículo en Inglés | MEDLINE | ID: mdl-28535541

RESUMEN

INTRODUCTION: To evaluate the largest vertical pocket (LVP) of amniotic fluid as a time-dependent factor to predict perinatal mortality in women with early preterm premature rupture of membranes (EPPROM). MATERIAL AND METHODS: Observational cohort study of singleton pregnancies with EPPROM <24 weeks. Termination of pregnancy (TOP) was considered if the LVP was <2 cm at 7 days. The maternal and neonatal characteristics of ongoing pregnancies were recorded. Prediction of perinatal mortality was estimated based on the influence of the LVP as a time-dependent factor after adjustment for maternal age, prior invasive procedure, and gestational age at EPPROM. RESULTS: Of 104 women, 39 requested TOP. Neonatal survival to discharge was 40%, increasing to 74% if pregnancies achieved 24 weeks. LVP at admission <1 cm, latency to delivery, and gestational age at delivery were independent predictors of perinatal mortality. When evaluating the LVP at different time points of gestation, the highest perinatal mortality risk was established at 2 weeks (odds ratio 14.67, p < 0.001) after membrane rupture, being 5.75 (p = 0.05) the week after and 10.93 (p = 0.037) beyond 2 weeks of EPPROM. DISCUSSION: When LVP measurement, gestational age at EPPROM, maternal age, and prior invasive procedure were considered, we found that the worst prognosis related to perinatal mortality was at 2 weeks after EPPROM.


Asunto(s)
Líquido Amniótico/diagnóstico por imagen , Líquido Amniótico/metabolismo , Rotura Prematura de Membranas Fetales/diagnóstico por imagen , Rotura Prematura de Membranas Fetales/metabolismo , Mortalidad Perinatal/tendencias , Adulto , Estudios de Cohortes , Femenino , Estudios de Seguimiento , Humanos , Recién Nacido , Valor Predictivo de las Pruebas , Embarazo
16.
Fetal Diagn Ther ; 41(4): 265-272, 2017.
Artículo en Inglés | MEDLINE | ID: mdl-27509017

RESUMEN

OBJECTIVES: Quantitative texture analysis has been proposed to extract robust features from the ultrasound image to detect subtle changes in the textures of the images. The aim of this study was to evaluate the feasibility of quantitative cervical texture analysis to assess cervical tissue changes throughout pregnancy. METHODS: This was a cross-sectional study including singleton pregnancies between 20.0 and 41.6 weeks of gestation from women who delivered at term. Cervical length was measured, and a selected region of interest in the cervix was delineated. A model to predict gestational age based on features extracted from cervical images was developed following three steps: data splitting, feature transformation, and regression model computation. RESULTS: Seven hundred images, 30 per gestational week, were included for analysis. There was a strong correlation between the gestational age at which the images were obtained and the estimated gestational age by quantitative analysis of the cervical texture (R = 0.88). DISCUSSION: This study provides evidence that quantitative analysis of cervical texture can extract features from cervical ultrasound images which correlate with gestational age. Further research is needed to evaluate its applicability as a biomarker of the risk of spontaneous preterm birth, as well as its role in cervical assessment in other clinical situations in which cervical evaluation might be relevant.


Asunto(s)
Cuello del Útero/diagnóstico por imagen , Edad Gestacional , Adulto , Cuello del Útero/anatomía & histología , Estudios Transversales , Femenino , Humanos , Embarazo , Segundo Trimestre del Embarazo , Tercer Trimestre del Embarazo
20.
Fetal Diagn Ther ; 38(3): 161-9, 2015.
Artículo en Inglés | MEDLINE | ID: mdl-26138441

RESUMEN

OBJECTIVE: The objectives of this review were to identify the predictive factors of induction of labor (IOL) failure or success as well as to highlight the current heterogeneity regarding the definition and diagnosis of failed IOL. MATERIALS AND METHODS: Only studies in which the main or secondary outcome was failed IOL, defined as not entering the active phase of labor after 24 h of prostaglandin administration ± 12 h of oxytocin infusion, were included in the review. The data collected were: study design, definition of failed IOL, induction method, IOL indications, failed IOL rate, cesarean section because of failed IOL and predictors of failed IOL. RESULTS: The database search detected 507 publications. The main reason for exclusion was that the primary or secondary outcomes were not the predetermined definition of failed IOL (not achieving active phase of labor). Finally, 7 studies were eligible. The main predictive factors identified in the review were cervical status, evaluated by the Bishop score or cervical length. DISCUSSION: Failed IOL should be defined as the inability to achieve the active phase of labor, considering that the definition of IOL is to enter the active phase of labor. A universal definition of failed IOL is an essential requisite to analyze and obtain solid results and conclusions on this issue. An important finding of this review is that only 7 of all the studies reviewed assessed achieving the active phase of labor as a primary or secondary IOL outcome. Another conclusion is that cervical status remains the most important predictor of IOL outcome, although the value of the parameters explored up to now is limited. To find or develop predictive tools to identify those women exposed to IOL who may not reach the active phase of labor is crucial to minimize the risks and costs associated with IOL failure while opening a great opportunity for investigation. Therefore, other predictive tools should be studied in order to improve IOL outcome in terms of health and economic burden.


Asunto(s)
Trabajo de Parto Inducido , Oxitocina/uso terapéutico , Prostaglandinas/uso terapéutico , Adulto , Femenino , Humanos , Embarazo , Insuficiencia del Tratamiento
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