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1.
Clin Transl Oncol ; 24(5): 875-881, 2022 May.
Artículo en Inglés | MEDLINE | ID: mdl-34854030

RESUMEN

PURPOSE: To evaluate the preliminary results of the use of 68 Gy EQD2(α/ß=3 Gy) as a dose limit to the lowest dose in the most exposed 2 cm3 of the vagina in order to reduce G2 late vaginal problems in postoperative endometrial carcinoma (EC). METHODS: From November 2016 to October 2019, 69 postoperative EC patients receiving vaginal brachytherapy (VBT) ± external beam radiotherapy (EBRT) were prospectively analyzed. The median EBRT dose was 45 Gy (range: 44-50.4 Gy), 1.8-2 Gy/day, 5 fractions(Fr)/week. VBT was administered with the following schedule: 1Fr of 7 Gy after EBRT and 2 daily Fr × 7.5 Gy in exclusive VBT. The dose was prescribed at 0.5 cm from the applicator surface with an active length of 2.5 cm; 56 patients were treated with vaginal cylinders (49-3.5 cm, 6-3 cm, and 1-2.5 cm) and 13 with the colpostat technique. The overall VBT dose was adjusted to meet the vaginal restriction of < 68 Gy EQD2(α/ß=3 Gy) at 2 cm3. Late toxicity was prospectively assessed using RTOG scores for bladder and rectum, and the objective LENT-SOMA criteria for vagina. RESULTS: With a median follow-up of 31.0 months, no vaginal-cuff recurrences were found. Late toxicity: only 1G1(1.4%) rectal toxicity; 21G1(30.4%) and 3G2(4.3%) vaginal complications. Only one (1.4%) of 3 G2 manifested as vaginal shortening. CONCLUSIONS: In postoperative EC patients treated with VBT, only one developed G2 vaginal stenosis with the use of 68 Gy EQD2(α/ß=3 Gy) as a dose constraint. These preliminary results seem to indicate the value of this dose limit for reducing G2 vaginal stenosis. Nonetheless, these findings should be confirmed in a larger number of patients with longer follow-up.


Asunto(s)
Braquiterapia , Neoplasias Endometriales , Braquiterapia/efectos adversos , Braquiterapia/métodos , Constricción Patológica/etiología , Constricción Patológica/patología , Neoplasias Endometriales/radioterapia , Neoplasias Endometriales/cirugía , Femenino , Humanos , Recto , Vagina/patología
2.
Rev Esp Quimioter ; 34(6): 525-555, 2021 Dec.
Artículo en Inglés | MEDLINE | ID: mdl-34348449

RESUMEN

The role of certain viruses in the etiology of some tumors is today indisputable, but there is a lack, however, of annoverview of the relationship between viruses and cancer with amultidisciplinary approach. For this reason, the Health Sciences Foundation has convened a group of professionals from different areas of knowledge to discuss the relationship between viruses and cancer, and the present document is the result of these deliberations. Although viruses cause only 10-15% of cancers, advances in oncology research are largely due to the work done during the last century on tumor viruses. The clearest cancer-inducing viruses are: HPV, HBV, HCV, EBV and, depending on the geographical area, HHV-8, HTLV-1 and HIV. HPVs, for example, are considered to be the causative agents of cervical carcinomas and, more recently, of a proportion of other cancers. Among the Herpes viruses, the association with the development of neoplasms is well established for EBV and HHV-8. Viruses can also be therapeutic agents in certain neoplasms and, thus, some oncolytic viruses with selective tropism for tumor cells have been approved for clinical use in humans. It is estimated that the prophylaxis or treatment of viral infections could prevent at least 1.5 million cancer deaths per year.


Asunto(s)
Neoplasias , Virosis , Humanos , Virus Oncogénicos , Papillomaviridae , Virosis/epidemiología
3.
Eur J Obstet Gynecol Reprod Biol ; 251: 23-27, 2020 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-32480177

RESUMEN

OBJECTIVE: The aim of this study was to evaluate the oncological outcomes of vaginal fertility-sparing surgery plus laparoscopic sentinel lymph node biopsy in patients with early cervical cancer over a 15-years period. PATIENTS AND METHODS: From March 2005 to April 2018, 38 patients diagnosed with early stage cervical cancer underwent vaginal fertility-sparing surgery at the Hospital Clínic, Barcelona, Spain. Patients with FIGO stage IA1 with lymphovascular space invasion and stage IA2 underwent simple trachelectomy and patients with stage IB1 underwent radical vaginal trachelectomy. All cases underwent laparoscopic sentinel lymph node biopsy. In the first 19 cases, laparoscopic bilateral pelvic lymphadenectomy was completed immediately after sentinel lymph node biopsy. Clinical and oncological follow-up data were collected. RESULTS: The median age at diagnosis was 33.5 years (range 22-44). Simple trachelectomy was performed in seven cases (18.4%) and vaginal radical trachelectomy in 31 (81.6%). Nineteen patients were exclusively treated with laparoscopic sentinel lymph node biopsy and 19 with sentinel lymph node biopsy plus laparoscopic bilateral pelvic lymphadenectomy. There were no significant differences between the two lymph node assessment groups regarding histology and tumour size. The median follow-up was 73 months (range 1-160 months). There were 4 recurrences (3 patients with IB1 and 1 with IA2). Two occurred in the sentinel lymph node biopsy group and 2 in the sentinel lymph node biopsy plus laparoscopic bilateral pelvic lymphadenectomy group. All the recurrences were diagnosed in patients with adenocarcinoma and in 3 patients without lymphovascular space invasion. CONCLUSION: Vaginal fertility-sparing surgery combined with laparoscopic sentinel lymph node biopsy seems to be a safe oncological procedure in selected patients with early stage cervical cancer. Further studies are needed to clarify the role of sentinel lymph node biopsy in fertility- sparing surgery in cervical cancer. Adenocarcinoma histology seems to be an important risk factor for recurrence.


Asunto(s)
Laparoscopía , Ganglio Linfático Centinela , Neoplasias del Cuello Uterino , Adulto , Femenino , Estudios de Seguimiento , Humanos , Escisión del Ganglio Linfático , Recurrencia Local de Neoplasia , Estadificación de Neoplasias , Estudios Retrospectivos , Ganglio Linfático Centinela/patología , España , Neoplasias del Cuello Uterino/patología , Neoplasias del Cuello Uterino/cirugía , Adulto Joven
4.
Clin Transl Oncol ; 22(8): 1295-1302, 2020 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-31865604

RESUMEN

PURPOSE: To determine whether brachytherapy with a single hypofractionated dose of 7 Gy provides the similar vaginal-cuff relapses and safety profile in terms of complications compared to schedules of 2 or 3 fractions of lower doses in patients treated previously with external beam irradiation in postoperative endometrial carcinoma. METHODS/MATERIAL: From June 2003 to December 2016, 325 patients were treated with 3 different schedules of high-dose-rate brachytherapy after external beam irradiation for postoperative endometrial carcinoma. The patients were divided into 3 groups: Group-1: 125 patients were treated with 3 fractions of 4-6 Gy per fraction (3 fractions/week) between 2003 and 2008; Group-2: 93 patients were treated with 2 consecutive daily fractions of 5-6 Gy between 2008 and 2011; Group-3: 107 patients received a single fraction of 7 Gy between 2011 and 2016. Bladder and rectum complications were assessed using RTOG scores and with the objective scores of LENT-SOMA for the vagina. STATISTICS: the chi-square test. RESULTS: The mean follow-up of Groups 1, 2 and 3 was 95, 67 and 51 months, respectively. Three patients in Group-1, 2 in Group-2, 1 in Group-3 developed vaginal-cuff relapse (p = 0.68). No differences were found in late toxicity among the three groups. CONCLUSIONS: One single dose of 7 Gy is safe and effective and may be the best treatment schedule with a similar incidence of vaginal-cuff relapses, complications and patient comfort with less hospital attendance.


Asunto(s)
Braquiterapia , Fraccionamiento de la Dosis de Radiación , Neoplasias Endometriales/radioterapia , Anciano , Braquiterapia/métodos , Distribución de Chi-Cuadrado , Neoplasias Endometriales/tratamiento farmacológico , Neoplasias Endometriales/patología , Neoplasias Endometriales/cirugía , Femenino , Humanos , Órganos en Riesgo/efectos de la radiación , Periodo Posoperatorio , Hipofraccionamiento de la Dosis de Radiación , Recto/efectos de la radiación , Vejiga Urinaria/efectos de la radiación , Vagina/efectos de la radiación
5.
Ann Oncol ; 29(10): 2121-2128, 2018 10 01.
Artículo en Inglés | MEDLINE | ID: mdl-30165419

RESUMEN

Background: We hypothesized that the abundance of PD1 mRNA in tumor samples might explain the differences in overall response rates (ORR) observed following anti-PD1 monotherapy across cancer types. Patients and methods: RNASeqv2 data from 10 078 tumor samples representing 34 different cancer types was analyzed from TCGA. Eighteen immune-related gene signatures and 547 immune-related genes, including PD1, were explored. Correlations between each gene/signature and ORRs reported in the literature following anti-PD1 monotherapy were calculated. To translate the in silico findings to the clinical setting, we analyzed the expression of PD1 mRNA using the nCounter platform in 773 formalin-fixed paraffin embedded (FFPE) tumor samples across 17 cancer types. To test the direct relationship between PD1 mRNA, PDL1 immunohistochemistry (IHC), stromal tumor-infiltrating lymphocytes (sTILs) and ORR, we evaluated an independent FFPE-based dataset of 117 patients with advanced disease treated with anti-PD1 monotherapy. Results: In pan-cancer TCGA, PD1 mRNA expression was found strongly correlated (r > 0.80) with CD8 T-cell genes and signatures and the proportion of PD1 mRNA-high tumors (80th percentile) within a given cancer type was variable (0%-84%). Strikingly, the PD1-high proportions across cancer types were found strongly correlated (r = 0.91) with the ORR following anti-PD1 monotherapy reported in the literature. Lower correlations were found with other immune-related genes/signatures, including PDL1. Using the same population-based cutoff (80th percentile), similar proportions of PD1-high disease in a given cancer type were identified in our in-house 773 tumor dataset as compared with TCGA. Finally, the pre-established PD1 mRNA FFPE-based cutoff was found significantly associated with anti-PD1 response in 117 patients with advanced disease (PD1-high 51.5%, PD1-intermediate 26.6% and PD1-low 15.0%; odds ratio between PD1-high and PD1-intermediate/low = 8.31; P < 0.001). In this same dataset, PDL1 tumor expression by IHC or percentage of sTILs was not found associated with response. Conclusions: Our study provides a clinically applicable assay that links PD1 mRNA abundance, activated CD8 T-cells and anti-PD1 efficacy.


Asunto(s)
Antineoplásicos Inmunológicos/uso terapéutico , Linfocitos T CD8-positivos/efectos de los fármacos , Regulación Neoplásica de la Expresión Génica/efectos de los fármacos , Linfocitos Infiltrantes de Tumor/efectos de los fármacos , Neoplasias/metabolismo , Receptor de Muerte Celular Programada 1/metabolismo , ARN Mensajero/metabolismo , Biomarcadores de Tumor/genética , Biomarcadores de Tumor/metabolismo , Linfocitos T CD8-positivos/inmunología , Estudios de Cohortes , Femenino , Estudios de Seguimiento , Humanos , Linfocitos Infiltrantes de Tumor/inmunología , Masculino , Persona de Mediana Edad , Neoplasias/tratamiento farmacológico , Neoplasias/inmunología , Neoplasias/patología , Pronóstico , Receptor de Muerte Celular Programada 1/antagonistas & inhibidores , Receptor de Muerte Celular Programada 1/genética , ARN Mensajero/genética , Tasa de Supervivencia
6.
Clin Transl Oncol ; 20(11): 1416-1421, 2018 Nov.
Artículo en Inglés | MEDLINE | ID: mdl-29651671

RESUMEN

OBJECTIVE: To analyze the impact of age on radiotherapy results based on cancer-specific survival (CSS), vaginal-cuff relapses (VCR) and complications analysis in 438 patients with endometrial carcinoma (EC) receiving postoperative radiotherapy (PRT) divided into three age groups for analysis. MATERIALS AND METHODS: From 2003 to 2015, 438 patients with EC were treated with PRT and divided into three age groups: Group-1: 202 patients < 65 years; Group-2: 210 patients ≥ 65 and < 80 years; Group-3: 26 patients ≥ 80 years. Vaginal toxicity was assessed using the objective LENT-SOMA criteria and RTOG scores were recorded for the rectum, bladder, and small bowel. STATISTICS: Chi square and Student's t tests, Kaplan-Meier survival study for analysis of CSS. RESULTS: The mean follow-up was 5.6 years in Group-1, 5.6 years in Group-2 and 6.3 years in Group-3 (p = 0.38). No differences were found among the groups in distribution of stage, grade, myometrial invasion, Type 1 vs. 2 EC and VLSI (p = 0.97, p = 0.52, p = 0.35, p = 0.48, p = 0.76, respectively). There were no differences in rectal, bladder and vagina late toxicity (p = 0.46, p = 0.17, p = 0.75, respectively). A better CSS at 5 years was found in Group-1 (p = 0.006), and significant differences were found in late severe small bowel toxicity in Group-3 (p = 0.005). VCR was increased in Group-3 (p = 0.017). CONCLUSIONS: Patients ≥ 65 years had a worse outcome in comparison to younger patients. Late vaginal, rectal and bladder toxicities were similar in the three groups, although an increase of severe late small bowel toxicity led to IMRT in patients ≥ 80 years. Further larger studies are needed including quality of life analysis in patients ≥ 80 years.


Asunto(s)
Envejecimiento/fisiología , Carcinoma Endometrioide/radioterapia , Neoplasias Endometriales/radioterapia , Adulto , Factores de Edad , Anciano , Anciano de 80 o más Años , Protocolos de Quimioterapia Combinada Antineoplásica/uso terapéutico , Carcinoma Endometrioide/tratamiento farmacológico , Carcinoma Endometrioide/mortalidad , Carcinoma Endometrioide/cirugía , Terapia Combinada , Neoplasias Endometriales/tratamiento farmacológico , Neoplasias Endometriales/mortalidad , Neoplasias Endometriales/cirugía , Femenino , Humanos , Persona de Mediana Edad , Recurrencia Local de Neoplasia/mortalidad , Recurrencia Local de Neoplasia/radioterapia , Recurrencia Local de Neoplasia/cirugía , Estudios Retrospectivos , Análisis de Supervivencia , Resultado del Tratamiento , Neoplasias Vaginales/mortalidad , Neoplasias Vaginales/radioterapia , Neoplasias Vaginales/cirugía
7.
J Virol Methods ; 248: 238-243, 2017 10.
Artículo en Inglés | MEDLINE | ID: mdl-28739302

RESUMEN

HPV-based screening provides greater protection against cervical cancer (CC) than cytology-based strategies. Currently, several molecular diagnostic assays for the detection of human papillomavirus (HPV) are available. In this study, we analyzed 5 different HPV testing and genotyping techniques (Hybrid Capture 2 [HC2; Qiagen, Hilden, Germany], AnyplexTMII HPV28 [Anyplex; Seegene, Seoul, Korea], Linear Array [Roche, Branchburg, NJ, USA], GP5+/6+ PCR-EIA-RH [Labo Bio-medical Products, Rijswijk, The Netherlands] and CLART2 [Genomica, Madrid, Spain]) in 295 women referred to the hospital Colposcopy Clinic from 2007 to 2008 due to positive HPV test results or an abnormal Pap test. DNA extraction for HPV genotyping was performed in cervical sample specimens after Pap test and HPV detection by HC2. The inclusion criteria were: (1) adequate cervical sampling with sufficient material for the Pap test and HPV detection and genotyping, and (2) colposcopically-directed biopsy and/or endocervical curettage. HC2 showed the highest sensitivity for high-grade squamous intraepithelial lesion and CC (HSIL+) detection (96.1%), but all the HPV genotyping tests showed a higher specificity. (Anyplex 86.8%; Linear Array 86.0%; GP5+/6+ 78.8%; CLART2 76.5%). The agreement between HC2 results and the other techniques was similar: 82.4%, kappa=0.650 for Anyplex; 83.4%, kappa=0.670 for Linear Array, 79.93%, kappa=0.609 for GP5+/6+ and 82.4%, kappa=0.654 for CLART2. HPV 16 and/or 18 infection was a risk factor for underlying HSIL+ in the univariate analysis. Anyplex showed the highest risk of underlying HSIL+ after positive HPV 16 and/or 18 tests (OR 31.1; 95% CI 12.1-80.0).


Asunto(s)
Cuello del Útero/virología , Enfermedades de los Genitales Femeninos/diagnóstico , Técnicas de Genotipaje , Técnicas de Diagnóstico Molecular/métodos , Papillomaviridae/aislamiento & purificación , Infecciones por Papillomavirus/diagnóstico , Adolescente , Adulto , Anciano , Biopsia , Cuello del Útero/patología , Detección Precoz del Cáncer/métodos , Femenino , Enfermedades de los Genitales Femeninos/epidemiología , Enfermedades de los Genitales Femeninos/virología , Genotipo , Papillomavirus Humano 16/genética , Papillomavirus Humano 16/aislamiento & purificación , Humanos , Tamizaje Masivo , Persona de Mediana Edad , Papillomaviridae/genética , Infecciones por Papillomavirus/epidemiología , Infecciones por Papillomavirus/virología , Juego de Reactivos para Diagnóstico , Sensibilidad y Especificidad , España/epidemiología , Lesiones Intraepiteliales Escamosas de Cuello Uterino/diagnóstico , Lesiones Intraepiteliales Escamosas de Cuello Uterino/virología , Neoplasias del Cuello Uterino/diagnóstico , Neoplasias del Cuello Uterino/virología , Adulto Joven
8.
Semergen ; 43(4): 265-276, 2017.
Artículo en Español | MEDLINE | ID: mdl-28549940

RESUMEN

Human papillomavirus (HPV) is the causative agent of 5% of human cancers. HPV infection is necessary for the development of cervical cancer and is responsible of a variable percentage of cancers of anus, vulva, vagina, penis, and oropharynx. Since 2007, 2 vaccines against HPV have been commercially available in Spain: bivalent (HPV types 16/18), and tetravalent (HPV types 6/11/16/18). In order to extend the protection afforded by HPV vaccines, a clinical program was launched in 2006 for the new nonavalent vaccine, including 9 HPV types (6/11/16/18/31/33/45/52/58). These types are responsible for 90% of cervical cancers, 82% of high-grade ano-genital pre-cancerous lesions, and 90% of genital warts. The purpose of this publication is to provide healthcare professionals with the scientific evidence that supports the new vaccine, as well as the clinical value that it offers in our environment.


Asunto(s)
Infecciones por Papillomavirus/prevención & control , Vacunas contra Papillomavirus/administración & dosificación , Neoplasias del Cuello Uterino/prevención & control , Aprobación de Drogas , Femenino , Humanos , Neoplasias/patología , Neoplasias/prevención & control , Neoplasias/virología , Papillomaviridae/aislamiento & purificación , Infecciones por Papillomavirus/complicaciones , España , Neoplasias del Cuello Uterino/virología
9.
BJOG ; 124(9): 1356-1363, 2017 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-28391609

RESUMEN

OBJECTIVE: To compare the sensitivity of high-risk human papillomavirus (hrHPV) and genotype detection in self-collected urine samples in the morning (U1), and later on (U2), brush-based self-samples (SS), and clinician-taken smears (CTS) for detecting cervical intraepithelial neoplasia grade 2+ (CIN2+) in a colposcopic referral population. DESIGN: Cross-sectional single-centre study. SETTING: A colposcopy clinic in Spain. POPULATION: A cohort of 113 women referred for colposcopy after an abnormal Pap smear. METHODS: Women undergoing colposcopy with biopsy for abnormal Pap smears were sent a device (Colli-Pee™, Novosanis, Wijnegem, Belgium) to collect U1 on the morning of colposcopy. U2, CTS, and SS (Evalyn brush™, Rovers Medical Devices B.V., Oss, the Netherlands) were also analysed. All samples were tested for HPV DNA using the analytically sensitive SPF10-DEIA-LiPA25 assay and the clinically validated GP5+/6+-EIA-LMNX. MAIN OUTCOME MEASURES: Histologically confirmed CIN2+ and hrHPV positivity for 14 high-risk HPV types. RESULTS: Samples from 91 patients were analysed. All CIN3 cases (n = 6) tested positive for hrHPV in CTS, SS, U1, and U2 with both HPV assays. Sensitivity for CIN2+ with the SPF10 system was 100, 100, 95, and 100%, respectively. With the GP5+/6+ assay, sensitivity was 95% in all sample types. The sensitivities and specificities for both tests on each of the sample types did not significantly differ. There was 10-14% discordance on hrHPV genotype. CONCLUSIONS: CIN2+ detection using HPV testing of U1 shows a sensitivity similar to that of CTS or brush-based SS, and is convenient. There was substantial to almost excellent agreement between all samples on genotype with both hrHPV assays. There was no advantage in testing U1 compared with U2 samples. TWEETABLE ABSTRACT: Similar CIN2+ sensitivity for HPV testing in first-void urine, physician-taken smear and brush-based self-sample.


Asunto(s)
ADN Viral/orina , Autoevaluación Diagnóstica , Prueba de Papanicolaou , Infecciones por Papillomavirus/diagnóstico , Displasia del Cuello del Útero/diagnóstico , Neoplasias del Cuello Uterino/diagnóstico , Frotis Vaginal/métodos , Adolescente , Adulto , Biomarcadores/orina , Colposcopía , Estudios Transversales , Femenino , Humanos , Persona de Mediana Edad , Papillomaviridae/genética , Papillomaviridae/aislamiento & purificación , Infecciones por Papillomavirus/complicaciones , Infecciones por Papillomavirus/genética , Infecciones por Papillomavirus/orina , Estudios Prospectivos , Sensibilidad y Especificidad , Triaje , Neoplasias del Cuello Uterino/patología , Neoplasias del Cuello Uterino/orina , Neoplasias del Cuello Uterino/virología , Adulto Joven , Displasia del Cuello del Útero/patología , Displasia del Cuello del Útero/orina , Displasia del Cuello del Útero/virología
10.
Rev Esp Med Nucl Imagen Mol ; 36(1): 20-26, 2017.
Artículo en Inglés, Español | MEDLINE | ID: mdl-27667001

RESUMEN

OBJECTIVE: Definitive staging for cervical (CC) and endometrial cancer (EC) takes place once surgery is performed. The aim of this study was to evaluate the role of PET/CT in detecting lymphatic metastasis in patients with CC and EC using dual-time-point imaging (DPI), taking the histopathological results of sentinel lymph node (SLN) and lymphadenectomy as the reference. MATERIAL AND METHODS: A prospective study was conducted on 17 patients with early CC, and 13 patients with high-risk EC. The patients had a pre-operative PET/CT, MRI, SLN detection, and lymphadenectomy, when indicated. PET/CT findings were compared with histopathological results. RESULTS: In the pathology study, 4 patients with CC and 4 patients with EC had lymphatic metastasis. PET/CT showed hypermetabolic nodes in 1 patient with CC, and 5 with EC. Four of these had metastasis, one detected in the SLN biopsy. Four patients who had negative PET/CT had micrometastasis in the SLN biopsy, 1 patient with additional lymph nodes involvement. The overall patient-based sensitivity, specificity, positive and negative predictive values, and accuracy of PET/CT to detect lymphatic metastasis was 20.0%, 100.0%, 100.0%, 87.9%, and 88.2%, respectively, in CC, and 57.1%, 88.9%, 66.7%, 84.2% and 80.0%, respectively, in EC. DPI showed higher retention index in malignant than in inflammatory nodes, although no statistically significant differences were found. CONCLUSIONS: PET/CT has low sensitivity in lymph node staging of CC and EC, owing to the lack of detection of micrometastasis. Thus, PET/CT cannot replace SLN biopsy. Although no statistically significant differences were found, DPI may help to differentiate between inflammatory and malignant nodes.


Asunto(s)
Carcinoma/secundario , Neoplasias Endometriales/diagnóstico por imagen , Metástasis Linfática/diagnóstico por imagen , Estadificación de Neoplasias/métodos , Tomografía Computarizada por Tomografía de Emisión de Positrones/métodos , Ganglio Linfático Centinela/diagnóstico por imagen , Neoplasias del Cuello Uterino/diagnóstico por imagen , Adulto , Carcinoma/diagnóstico por imagen , Carcinoma/patología , Neoplasias Endometriales/patología , Femenino , Radioisótopos de Flúor , Fluorodesoxiglucosa F18 , Estudios de Seguimiento , Humanos , Escisión del Ganglio Linfático , Imagen por Resonancia Magnética , Persona de Mediana Edad , Estudios Prospectivos , Radiofármacos , Sensibilidad y Especificidad , Biopsia del Ganglio Linfático Centinela , Neoplasias del Cuello Uterino/patología
11.
BJOG ; 124(3): 495-502, 2017 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-27506510

RESUMEN

OBJECTIVE: To evaluate whether colposcopic measurement of the lesion size at diagnosis and/or human papillomavirus (HPV) genotyping can predict the absence of dysplasia in a large loop excision of the transformation zone (LLETZ) specimen in women treated for squamous intraepithelial lesions/cervical intraepithelial neoplasia (SIL/CIN). DESIGN: Prospective observational study. SETTING: Tertiary university hospital. POPULATION: A cohort of 116 women who underwent LLETZ because of biopsy-proven low-grade SIL/CIN that had persisted for 2 years, or because of a high-grade SIL/CIN diagnosed in the referral visit and squamocolumnar junction completely visible (types 1 or 2, according to the International Federation of Cervical Pathology and Colposcopy, IFCPC). METHODS: After LLETZ the women were classified by histology into the study group (absence of SIL/CIN in the surgical specimen, 28/116, 24.1%) and the control group (SIL/CIN in the LLETZ specimen, 88/116, 75.9%). MAIN OUTCOME MEASURES: The size of the lesion determined in the diagnostic colposcopy and the HPV genotype were evaluated in all women. RESULTS: The lesion size was significantly smaller in the study group (25.7 ± 37.8 versus 84.5 ± 81.7 mm2 ; P < 0.001). A lesion size of ≤12 mm2 and HPV types other than 16 or 18 were associated with an absence of SIL/CIN in the LLETZ specimen (P < 0.001 and P = 0.016, respectively). On multivariate analysis only a lesion size of ≤12 mm2 predicted the absence of SIL/CIN (odds ratio, OR 10.6; 95% confidence interval, 95% CI 3.6-30.6; P < 0.001). A lesion size of ≤12 mm2 had a specificity of 90.9% (95% CI 83.0-95.3%) and a negative predictive value of 86.0% (95% CI 77.5-91.6%) to predict the absence of SIL/CIN in the surgical specimen. CONCLUSIONS: Small lesion size in diagnostic colposcopy could predict the absence of SIL/CIN in the LLETZ specimen. Colposcopy measurement of lesion size prior to LLETZ may avoid unnecessary treatment. TWEETABLE ABSTRACT: Small lesion size in colposcopic evaluation might predict the absence of SIL/CIN in an LLETZ specimen.


Asunto(s)
Colposcopía/métodos , Pruebas de ADN del Papillomavirus Humano/métodos , Lesiones Intraepiteliales Escamosas de Cuello Uterino/diagnóstico , Displasia del Cuello del Útero/diagnóstico , Neoplasias del Cuello Uterino/diagnóstico , Adulto , Cuello del Útero/patología , Cuello del Útero/cirugía , Femenino , Estudios de Seguimiento , Genotipo , Humanos , Persona de Mediana Edad , Papillomaviridae/genética , Infecciones por Papillomavirus/diagnóstico , Estudios Prospectivos , Lesiones Intraepiteliales Escamosas de Cuello Uterino/patología , Lesiones Intraepiteliales Escamosas de Cuello Uterino/cirugía , Neoplasias del Cuello Uterino/patología , Displasia del Cuello del Útero/patología , Displasia del Cuello del Útero/cirugía
12.
BJOG ; 122(1): 119-27, 2015 Jan.
Artículo en Inglés | MEDLINE | ID: mdl-25229645

RESUMEN

OBJECTIVE: Using highly sensitive polymerase chain reaction (PCR) techniques, we reanalysed all cervical carcinomas (CCs) found to be human papillomavirus (HPV)-negative by Hybrid Capture 2 (HC2) to determine the prevalence of true HPV-negativity. We also evaluated the characteristics of the patients with tumours with confirmed HPV-negativity. DESIGN: Observational study. SETTING: Barcelona, Spain. POPULATION: A cohort of 136 women with CC (32 adenocarcinomas, 104 squamous cell carcinomas) who had pre-treatment HC2 testing. METHODS: All negative cases were reanalysed and genotyped for HPV using three PCR assays (SPF10, GP5+/6+ and E7-specific assay). MAIN OUTCOME MEASURES: Percentage of confirmed HPV-negative and HPV-positive tumours. Clinicopathological features and disease-free survival (DFS) and overall survival (OS) of both groups. RESULTS: Fourteen of 136 women (10.2%) were negative for HPV by HC2. After reanalysis by PCR-based techniques only 8/136 (5.8%) tumours were confirmed as HPV-negative, whereas in six cases different HPVs were identified [HPV-11, -16 (two tumours), -18, -45, and -68]. Confirmed HPV-negativity was more frequent in adenocarcinomas than in squamous cell carcinomas (5/32, 15.6% versus 3/104, 2.9%, respectively; P = 0.017). Patients with CCs with confirmed HPV-negativity had significantly worse DFS than women with HPV-positive tumours [51.9 months (95% CI 12.2-91.7 months) versus 109.9 months (95% CI 98.2-121.5 months); P = 0.010]. In the multivariate analysis HPV-negativity and International Federation of Gynecology and Obstetrics (FIGO) staging were associated with increased risk of progression and mortality. CONCLUSIONS: An HC2-negative result is an uncommon finding in women with CC, but in almost half of these cases HPVs are identified by more sensitive techniques. CCs with confirmed HPV-negativity are more frequently adenocarcinomas, and seem to be associated with worse DFS.


Asunto(s)
Adenocarcinoma Mucinoso/patología , Carcinoma Adenoescamoso/patología , Carcinoma de Células Escamosas/patología , ADN Viral/genética , Papillomaviridae/genética , Infecciones por Papillomavirus/genética , Neoplasias del Cuello Uterino/patología , Adenocarcinoma/patología , Adenocarcinoma/virología , Adenocarcinoma Mucinoso/virología , Adulto , Anciano , Carcinoma Adenoescamoso/virología , Carcinoma de Células Escamosas/virología , Estudios de Cohortes , Femenino , Humanos , Persona de Mediana Edad , Infecciones por Papillomavirus/diagnóstico , Reacción en Cadena de la Polimerasa , Pronóstico , Neoplasias del Cuello Uterino/virología
13.
Gynecol Oncol ; 135(2): 201-7, 2014 Nov.
Artículo en Inglés | MEDLINE | ID: mdl-25204846

RESUMEN

OBJECTIVE: It has been suggested that colposcopy can miss a significant percentage of high-grade cervical intraepithelial neoplasia (CIN2+). Improved disease ascertainment was evaluated by taking multiple lesion-directed biopsies. METHODS: In a cross-sectional multicenter study in the Netherlands and Spain, 610 women referred to colposcopy following abnormal cervical cytology results were included. Multiple directed biopsies were collected from lesions and ranked according to impression. A non-directed biopsy of normal-appearing tissue was added if fewer than four biopsies were collected. We evaluated the additional CIN2+ yield for one and two directed biopsies. Colposcopic images were reviewed for quality control. RESULTS: In women with at least two lesion-directed biopsies the yield for CIN2+ increased from 51.7% (95%CI; 45.7-57.7) for one directed biopsy to 60.4% (95%CI; 54.4-66.2, p<0.001) for two biopsies. The highest CIN2+ yield was observed in women who were HPV16-positive, had high-grade squamous intraepithelial lesion (HSIL) cytology, and high-grade colposcopy impression. The yield increased from 83.1% (95%CI; 71.5-90.5) with one directed biopsy to 93.2% (95%CI; 83.8-97.3) with two directed biopsies. Only 4.5% additional CIN2+ were detected in biopsies not targeting abnormal areas on the cervix. CONCLUSIONS: A second lesion-directed biopsy is associated with a significant increase in CIN2+ detection. Performing a second lesion-directed biopsy and using a low threshold for abnormality of any acetowhitening should become the standard clinical practice of colposcopy.


Asunto(s)
Cuello del Útero/patología , Colposcopía/métodos , Infecciones por Papillomavirus/patología , Lesiones Intraepiteliales Escamosas de Cuello Uterino/patología , Displasia del Cuello del Útero/patología , Neoplasias del Cuello Uterino/patología , Adolescente , Adulto , Anciano , Anciano de 80 o más Años , Biopsia/métodos , Estudios Transversales , ADN Viral/genética , Femenino , Papillomavirus Humano 16/genética , Humanos , Persona de Mediana Edad , Infecciones por Papillomavirus/complicaciones , Infecciones por Papillomavirus/virología , Lesiones Intraepiteliales Escamosas de Cuello Uterino/complicaciones , Lesiones Intraepiteliales Escamosas de Cuello Uterino/diagnóstico , Neoplasias del Cuello Uterino/complicaciones , Neoplasias del Cuello Uterino/diagnóstico , Adulto Joven , Displasia del Cuello del Útero/complicaciones , Displasia del Cuello del Útero/diagnóstico
14.
BJOG ; 121(9): 1117-26, 2014 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-24494663

RESUMEN

OBJECTIVE: To study colposcopic performance in diagnosing high-grade cervical intraepithelial neoplasia or cervical cancer (CIN2+ and CIN3+) using colposcopic characteristics and high-risk human papillomavirus (hrHPV) genotyping. DESIGN: Cross-sectional multicentre study. SETTING: Two colposcopy clinics in The Netherlands and Spain. POPULATION: Six hundred and ten women aged 17 years and older referred for colposcopy because of abnormal cytology. METHODS: A cervical smear was obtained. Colposcopists identified the worst lesion, graded their impression and scored the colposcopic characteristics of the lesions. Up to four biopsies were collected, including one biopsy from visually normal tissue. MAIN OUTCOME MEASURES: CIN2+ and CIN3+, positive for HPV16 or other high-risk HPV types (non-16 hrHPV-positive). RESULTS: The mean age in HPV16-positive CIN2+ women was 35.1 years compared with 39.1 years in women with other hrHPV types (P = 0.002). Sensitivity for colposcopy to detect CIN2+ was 87.9% (95%CI 83.2-91.5), using colposcopic cut-off of 'any abnormality'. The remaining CIN2+ were found by a biopsy from visually normal tissue or endocervical curettage (ECC). Detection of CIN2+ by lesion-targeted biopsies was not different between HPV16-positive women [119/135; 88.1% (95%CI 81.2-92.9)] and non-16 hrHPV-positive women [100/115; 87.0% (95%CI 79.1-92.3); P = 0.776]. In multivariate analysis, 'acetowhitening' [odds ratio (OR) 1.91, 95%CI 1.56-3.17], 'time of appearance' (OR 1.95, 95%CI 1.21-3.15) and 'lesion >25% of visible cervix' (OR 2.25, 95%CI 1.44-3.51) were associated with CIN2+. CONCLUSIONS: In this population following European screening practice, HPV16-related CIN2+ lesions were detected at younger age and showed similar colposcopic impression as non-16 hrHPV high-grade lesions. There was no relationship between any of the colposcopic characteristics and HPV16 status.


Asunto(s)
Infecciones por Papillomavirus/diagnóstico , Displasia del Cuello del Útero/diagnóstico , Neoplasias del Cuello Uterino/diagnóstico , Adulto , Alphapapillomavirus/genética , Colposcopía , Estudios Transversales , Femenino , Genotipo , Papillomavirus Humano 16/genética , Humanos , Países Bajos , Infecciones por Papillomavirus/patología , Sensibilidad y Especificidad , España , Neoplasias del Cuello Uterino/patología , Displasia del Cuello del Útero/patología
15.
J Clin Virol ; 57(2): 125-9, 2013 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-23518442

RESUMEN

BACKGROUND: High-risk human papillomavirus (hrHPV) testing in cervical screening is usually performed on physician-taken cervical smears in liquid-based medium. However, solid-state specimen carriers allow easy, non-hazardous storage and transportation and might be suitable for self-collection by non-responders in screening and in low-resource settings. OBJECTIVES: We evaluated the adequacy of self-collected cervicovaginal (c/v) samples using a Viba-brush stored on an Indicating FTA-elute cartridge (FTA-based self-sampling) for hrHPV testing in women referred to a gynecology clinic due to an abnormal smear. STUDY DESIGN: 182 women accepted to self-collect a c/v sample. After self-sampling, a physician obtained a conventional liquid-based cervical smear. Finally, women were examined by colposcopy and a biopsy was taken when clinically indicated. Self-samples required only simple DNA elution, and DNA was extracted from physician-obtained samples. Both samples were tested for 14 hrHPVs by GP5+/6+-EIA-LQ Test and SPF(10)-DEIA-LiPA(25). RESULTS: Both assays detected significantly more hrHPV in physician-collected specimens than in self-collected samples (75.3% and 67.6% by SPF(10); 63.3% and 53.3% by GP5+/6+, respectively). The combination of physician-collected specimen and GP5+/6+ testing demonstrated the optimal balance in sensitivity (98.0%) and specificity (48.1%) for CIN2+ detection in this referral population. A test system of FTA-based self-collection and SPF(10) hrHPV detection approached this sensitivity (95.9%) and specificity (42.9%). CONCLUSIONS: These results show that the clinical performance of hrHPV detection is determined by both the sample collection system and the test method. FTA-based self-collection with SPF(10) testing might be valuable when a liquid-based medium cannot be used, but requires further investigation in screening populations.


Asunto(s)
Cuello del Útero/virología , Papillomaviridae/aislamiento & purificación , Infecciones por Papillomavirus/diagnóstico , Autoadministración , Manejo de Especímenes/instrumentación , Frotis Vaginal/métodos , Adolescente , Adulto , Anciano , ADN Viral/genética , Femenino , Genotipo , Humanos , Persona de Mediana Edad , Papillomaviridae/genética , Infecciones por Papillomavirus/virología , Reacción en Cadena de la Polimerasa , Sensibilidad y Especificidad , Manejo de Especímenes/métodos , Neoplasias del Cuello Uterino/diagnóstico , Neoplasias del Cuello Uterino/virología , Frotis Vaginal/instrumentación , Adulto Joven , Displasia del Cuello del Útero/diagnóstico , Displasia del Cuello del Útero/virología
16.
Gynecol Oncol ; 129(1): 42-8, 2013 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-23376806

RESUMEN

OBJECTIVE: To assess the usefulness of adding SPECT/CT to planar images for pre-surgical sentinel lymph node (SLN) identification in endometrial cancer (EC), a technique that could have an important clinical impact on the staging, treatment, and prognosis of EC patients. METHODS: We compared the planar and SPECT/CT lymphoscintigraphic images of 44 patients with high-risk EC who underwent sentinel lymph node procedure (SLN) using an injection technique recently developed at our center known as TUMIR (Transvaginal Ultrasound Myometrial Injection of Radiotracer). 148 MBq (4 mCi) of 99mTc-nanocolloid were injected, guided by transvaginal ultrasound imaging. Planar and SPECT/CT images were performed in all 44 patients. RESULTS: SLNs were seen on planar images in 32 cases (73%) and in 34 cases (77%) using SPECT/CT. A total of 88 SLNs were depicted by planar lymphoscintigraphy while SPECT/CT visualized a total of 110 SLNs. SPECT/CT changed the assessment of the SLNs visualized in planar lymphoscintigraphy in 26 cases, either by modifying the number and/or the location of the SLNs detected. External iliac chain was the most frequent location of SLN detection (71%) in the 34 cases. Fifteen of these patients (44%) showed para-aortic SLNs. One case had exclusive para-aortic drainage (3%) that was only visualized by SPECT/CT. In another case, SPECT/CT was able to localize the only pelvic metastatic lymph node not visualized by planar images. CONCLUSIONS: SPECT/CT combined with planar imaging improves preoperative SLN detection and provides valuable anatomic information that enhances the presurgical stage of the SLN technique in endometrial cancer.


Asunto(s)
Neoplasias Endometriales/diagnóstico por imagen , Linfocintigrafia , Imagen Multimodal , Tomografía de Emisión de Positrones , Biopsia del Ganglio Linfático Centinela/métodos , Tomografía Computarizada por Rayos X , Adulto , Anciano , Anciano de 80 o más Años , Femenino , Humanos , Metástasis Linfática , Persona de Mediana Edad , Ultrasonografía Intervencional
17.
BJOG ; 120(4): 392-9, 2013 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-23189989

RESUMEN

OBJECTIVE: To evaluate the feasibility and utility of intraoperative post-conisation human papillomavirus (IOP-HPV) testing and cytology to detect treatment failure in patients with cervical intraepithelial neoplasia grades 2-3 (CIN2-3). DESIGN: Prospective observational pilot study. SETTING: Barcelona, Spain. POPULATION: A cohort of 132 women treated for CIN2-3 by loop electrosurgical conisation. METHODS: An endocervical sample was obtained intraoperatively with a cytobrush from the cervix remaining after the conisation. The material was kept in PreservCyt medium and processed for Hybrid Capture 2 and cytology. Patients were followed-up for 24 months. The performance of IOP-HPV testing and IOP cytology was compared with conventional indicators of recurrence (cone margin, endocervical curettage, and HPV testing and cytology at 6 months). MAIN OUTCOME MEASURE: Treatment failure (i.e. recurrent CIN2-3 during follow-up). RESULTS: Treatment failure was identified in 12 women (9.1%). IOP-HPV testing for sensitivity, specificity, and positive and negative predictive values for treatment failure were 91.7, 78.3, 62.2, and 96.0%, respectively, which are similar to the figures for conventional HPV testing at 6 months (91.7, 76.0, 64.0, and 95.1%, respectively), and are better than the values of other conventional predictive factors (cone margin, endocervical curettage, and cytology intraoperative at 6 months). IOP-HPV was strongly associated with treatment failure in the multivariate analysis (OR 15.40, 95% CI 1.58-150.42). CONCLUSION: IOP-HPV testing is feasible, and accurately predicts treatment failure in patients with CIN2-3. This new approach may allow an early identification of patients with treatment failure, thereby facilitating the scheduling of an attenuated follow-up for negative patients who are at very low risk of persistent disease.


Asunto(s)
Cuello del Útero/cirugía , Conización/métodos , Electrocirugia/métodos , Infecciones por Papillomavirus/diagnóstico , Displasia del Cuello del Útero/cirugía , Neoplasias del Cuello Uterino/cirugía , Adulto , Colposcopía/métodos , Detección Precoz del Cáncer/métodos , Estudios de Factibilidad , Femenino , Humanos , Cuidados Intraoperatorios/métodos , Recurrencia Local de Neoplasia/diagnóstico , Neoplasia Residual/diagnóstico , Proyectos Piloto , Estudios Prospectivos , Sensibilidad y Especificidad , Insuficiencia del Tratamiento , Neoplasias del Cuello Uterino/patología , Neoplasias del Cuello Uterino/virología , Displasia del Cuello del Útero/patología , Displasia del Cuello del Útero/virología
19.
Euro Surveill ; 15(41): 19688, 2010 Oct 14.
Artículo en Inglés | MEDLINE | ID: mdl-20961515

RESUMEN

Methicillin-resistant Staphylococcus aureus (MRSA) isa major cause of healthcare- and community-associated infections worldwide. Within the healthcare setting alone, MRSA infections are estimated to affect more than 150,000 patients annually in the European Union (EU), resulting in attributable extra in-hospital costs of EUR 380 million for EU healthcare systems. Pan-European surveillance data on bloodstream infections show marked variability among EU Member States in the proportion of S. aureus that are methicillin-resistant, ranging from less than 1% to more than 50%. In the past five years, the MRSA bacteraemia rates have decreased significantly in 10 EU countries with higher endemic rates of MRSA infections. In addition to healthcare-associated infections, new MRSA strains have recently emerged as community and livestock-associated human pathogens in most EU Member States. The prevention and control of MRSA have therefore been identified as public health priorities in the EU. In this review, we describe the current burden of MRSA infections in healthcare and community settings across Europe and outline the main threats caused by recent changes in the epidemiology of MRSA. Thereby, we aim at identifying unmet needs of surveillance, prevention and control of MRSA in Europe.


Asunto(s)
Bacteriemia/prevención & control , Infecciones Comunitarias Adquiridas/prevención & control , Infección Hospitalaria/prevención & control , Staphylococcus aureus Resistente a Meticilina , Infecciones Estafilocócicas/prevención & control , Animales , Bacteriemia/economía , Bacteriemia/epidemiología , Bacteriemia/microbiología , Infecciones Comunitarias Adquiridas/economía , Infecciones Comunitarias Adquiridas/epidemiología , Infecciones Comunitarias Adquiridas/microbiología , Infección Hospitalaria/economía , Infección Hospitalaria/epidemiología , Infección Hospitalaria/microbiología , Europa (Continente)/epidemiología , Costos de Hospital , Humanos , Tiempo de Internación , Vigilancia de la Población , Factores de Riesgo , Infecciones Estafilocócicas/economía , Infecciones Estafilocócicas/epidemiología , Infecciones Estafilocócicas/microbiología
20.
Actas Dermosifiliogr ; 101(4): 323-9, 2010 May.
Artículo en Español | MEDLINE | ID: mdl-20487687

RESUMEN

INTRODUCTION: Spain has come to be one of the main European destinations for immigrants from countries with low per capita incomes. The Balearic Islands have the second largest proportion of immigrants in a Spanish autonomous community. The aim of this study was to describe the dermatology service utilization by immigrant and Spanish populations at Hospital Son Llàtzer in Palma de Majorca, Spain. PATIENTS AND METHODS: A longitudinal, descriptive study was undertaken to analyze first visits to the dermatology department of Hospital Son Llàtzer between July 10, 2007 and July 9, 2008. RESULTS: Of the 6699 first visits, 13. 2% were by non-Spanish patients, originating from 64 different countries, with Argentina, Ecuador, and Columbia the most common. Spanish patients consulted more frequently than non-Spanish patients. Patients from outside the European Union consulted most often for inflammatory conditions, whereas patients from Spain and other countries of the European Union mainly consulted for benign tumors. Consultations were for sexually transmitted disease in 2% of visits. The reason for the visit was classified as cosmetic in 14. 1% of patients. CONCLUSIONS: The dermatology service utilization by the immigrant population was lower than by Spanish patients, although with differences according to the country of origin.


Asunto(s)
Dermatología , Emigrantes e Inmigrantes , Departamentos de Hospitales/estadística & datos numéricos , Enfermedades de la Piel/epidemiología , Adolescente , Adulto , Niño , Preescolar , Femenino , Humanos , Estudios Longitudinales , Masculino , España , Adulto Joven
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