Publications by authors named "Kimon Chatzistamatiou"

Article Synopsis
  • The new molecular classification of endometrial cancer is changing how doctors manage the disease, supported by a recently updated FIGO staging system that includes molecular substages for early-stage cases.
  • A study analyzed patient records from a hospital from 2012 to 2023, focusing on stage shifts and treatment outcomes, revealing that 15.5% of patients experienced a shift in their cancer stage, mainly from earlier stages to stage IIC.
  • The 2023 FIGO staging system shows improved differentiation of early-stage endometrial cancer prognoses while demonstrating similar prognostic accuracy as the previous 2009 system.
View Article and Find Full Text PDF

BRCA mutation and homologous recombination deficiency (HRD) are the criteria for the administration of PARP inhibitor (PARPi) maintenance therapy. It is known that PARPi efficacy is related to platinum sensitivity and that the latter can be demonstrated from the CA-125 elimination rate constant (KELIM). This study aims to investigate if KELIM can be another tool in the identification of patients that could be benefit from PARPi therapy.

View Article and Find Full Text PDF

(1) Background: Neoadjuvant chemotherapy followed by interval debulking surgery is used in the treatment of advanced ovarian cancer. However, no tool can safely predict if complete cytoreduction after 3-4 cycles can be achieved. This study aims to investigate if the KELIM score can be a triage tool in the identification of patients that will be ideal candidates for interval debulking surgery (IDS).

View Article and Find Full Text PDF

Increasing evidence supports a role for the vaginal microbiome (VM) in the severity of HPV infection and its potential link to cervical intraepithelial neoplasia. However, a lot remains unclear regarding the precise role of certain bacteria in the context of HPV positivity and persistence of infection. Here, using next generation sequencing (NGS), we comprehensively profiled the VM in a series of 877 women who tested positive for at least one high risk HPV (hrHPV) type with the COBAS 4,800 assay, after self-collection of a cervico-vaginal sample.

View Article and Find Full Text PDF

Objective: To identify the optimal strategy for the triage of women who test high-risk (hr) HPV positive on self-collected cervicovaginal samples.

Methods: This is a diagnostic accuracy sub-analysis of the GRECOSELF study, which reported on HPV-DNA testing with self-sampling in Greece. More than 13,000 women, 25-60 years old, who resided in rural areas of Greece, provided a self-collected cervicovaginal sample.

View Article and Find Full Text PDF

Human papillomavirus (HPV)-DNA testing combined with self-sampling could increase cervical cancer screening effectiveness, utilizing a sensitive screening modality and an easy sampling method with minimal pain or discomfort. Self-sampling acceptability, though, is pivotal. This study is a nested cross-sectional survey within GRECOSELF, a cross-sectional study on HPV-based screening with self-sampling, aiming at investigating self-sampling acceptability among Greek women residing in rural areas, and the factors affecting it.

View Article and Find Full Text PDF

Background: Infection with human papillomaviruses (HPVs) can cause benign and malignant tumours in the anogenital tract and the oropharynx both in men and women. The aim of the presented study was to investigate cervical, anal, and oral HPV-detection rates among women referred to colposcopy for abnormal Cervical Cancer (CaCx) screening results and assess the concordance of HPV-types among these anatomical sites.

Methods: Women referred to colposcopy at a single centre due to abnormal cytology, conducted for CaCx screening, were subjected to cervical Liquid-based Cytology (LBC) smear testing, anal and oral sampling.

View Article and Find Full Text PDF

Background: HPV test appears to be more effective in cervical cancer (CC) screening. However, the decision of its adoption as a primary screening method by substituting the established cytology lies in the evaluation of multiple criteria. Aim of this study is to evaluate the economic and clinical impact of HPV test as primary screening method for CC.

View Article and Find Full Text PDF

Self-sampling for human papillomavirus (HPV) testing is an alternative to physician sampling particularly for cervical cancer screening nonattenders. The GRECOSELF study is a nationwide observational cross-sectional study aiming to suggest a way to implement HPV-DNA testing in conjunction with self-sampling for cervical cancer screening in Greece, utilizing a midwifery network. Women residing in remote areas of Greece were approached by midwives, of a nationwide network, and were provided with a self-collection kit (dry swab) for cervicovaginal sampling and asked to answer a questionnaire about their cervical cancer screening history.

View Article and Find Full Text PDF

Background: HPV DNA Array is an E1-targeting PCR genotyping test, with capability of distinguishing 18 high-risk (16, 18, 26, 31, 33, 35, 39, 45, 51, 52, 53, 56, 58, 59, 66, 68, 73, 82) and 11 low-risk HPV types (6, 11, 40, 42, 44, 54, 67, 69, 70, 85, 97). HPV DNA Array uses multiplex PCR for E1-gene sequence amplification. The amplicons are detected and genotyped by reverse hybridization to immobilized DNA probes spotted as triplets in single 96 well-plate wells and read by AID ELISPOT reader.

View Article and Find Full Text PDF

Purpose: The purpose of this paper is to investigate the attitudes of healthcare professionals in Greece toward safety practices in gynecological Operation Rooms (ORs).

Design/methodology/approach: An anonymous self-administered questionnaire was distributed to surgical personnel asking for opinions on safety practices during vaginal deliveries (VDs) and gynecological operations (e.g.

View Article and Find Full Text PDF

Purpose: To assess personal and parental human papillomavirus (HPV) vaccination acceptance and how it is influenced by demographic factors prior to (2005-2010) and during (2011-2016) the economic crisis in Greece.

Methods: During 2005-2016, 6,401 women aged 18-65 years, living in different areas of Greece filled in a questionnaire covering demographic characteristics, knowledge of HPV infection's natural history and its consequences and assessing their intention to receive the HPV vaccine for themselves and their children.

Results: Women's intention to get vaccinated before the economic crisis was higher (86.

View Article and Find Full Text PDF

Persistent cervical infection with high-risk human papillomaviruses (hrHPVs) is a necessary, but not sufficient, condition for the development of cervical cancer. Therefore, there are other co-factors facilitating the hrHPV carcinogenic process, one of which is smoking. To assess the effect of smoking on high-risk (hr) HPV DNA positivity and on the expression of HPV E7 oncoprotein, as a surrogate of persistent hrHPV infection, we used data from women recruited for the PIPAVIR project, which examined the role of E7 protein detection in cervical cancer screening.

View Article and Find Full Text PDF

The aim of the present cohort study was to assess the long-term (follow-up period up to 22 years) recurrence rate of preinvasive disease and the newly detected invasive disease rate in a cohort of women treated with excisional methods for high-grade cervical intraepithelial neoplasia (CIN).Women treated with large loop excision of the transformation zone (LLETZ) and cold knife conization (CKC) for histologically proven high-grade CIN were followed up for up to 22 years. Surgical specimens underwent histological examination and the status of endocervical as well as ectocervical margins was recorded.

View Article and Find Full Text PDF

In the present pilot study, the feasibility of a site-of-care cervicovaginal self-sampling methodology for HPV-based screening was tested in 346 women residing in underserved rural areas of Northern Greece. These women provided self-collected cervicovaginal sample along with a study questionnaire. Following molecular testing, using the cobas HPV Test, Roche, HPV positive women, were referred to colposcopy and upon abnormal findings, to biopsy and treatment.

View Article and Find Full Text PDF

The objective of the presented cross-sectional-evaluation-screening study is the clinical evaluation of high-risk(hr)HPVE7-protein detection as a triage method to colposcopy for hrHPV-positive women, using a newly developed sandwich-ELISA-assay. Between 2013-2015, 2424 women, 30-60 years old, were recruited at the Hippokratio Hospital, Thessaloniki/Greece and the Im Mare Klinikum, Kiel/Germany, and provided a cervical sample used for Liquid Based Cytology, HPV DNA genotyping, and E7 detection using five different E7-assays: "recomWell HPV16/18/45KJhigh", "recomWell HPV16/18/45KJlow", "recomWell HPV39/51/56/59", "recomWell HPV16/31/33/35/52/58" and "recomWell HPVHRscreen" (for 16,18,31,33,35,39,45,51,52,56,58,59 E7), corresponding to different combinations of hrHPVE7-proteins. Among 1473 women with eligible samples, those positive for cytology (ASCUS+ 7.

View Article and Find Full Text PDF

Purpose: The purpose of the presented PIPAVIR (persistent infections with human papillomaviruses; http://www.pipavir.com ) subanalysis is to assess the performance of high-risk (hr) HPV-DNA genotyping as a method of primary cervical cancer screening and triage of HPV positive women to colposcopy compared to liquid-based cytology (LBC) in an urban female population.

View Article and Find Full Text PDF

Endometriosis is among the most common benign gynecological conditions, and it affects 6-15% of women of reproductive. During recent decades, minimally invasive surgical techniques, and especially laparoscopy, have gained significant ground concerning the treatment of gynecological disorders. To date, laparoscopy is considered the gold standard for the diagnosis and treatment of endometriosis.

View Article and Find Full Text PDF

A woman presented at the gynecological emergency clinic with severe lower abdominal pain. Even though she reported normal menses and had no risk factors for ectopic pregnancy, pregnancy test was positive and vaginal sonogram indicated heterotopic pregnancy at 12 weeks of gestation, with rupture of the ectopic pregnancy. Laboratory results indicated significant blood loss, and emergency laparotomy with salpingo-ophorectomy was performed.

View Article and Find Full Text PDF

Objectives: The objective of the present study was to identify the most effective cervical cancer screening algorithm incorporating different combinations of cytology, HPV testing and genotyping.

Methods: Women 25-55years old recruited for the "HERMES" (HEllenic Real life Multicentric cErvical Screening) study were screened in terms of cytology and high-risk (hr) HPV testing with HPV 16/18 genotyping. Women positive for cytology or/and hrHPV were referred for colposcopy, biopsy and treatment.

View Article and Find Full Text PDF

Objective: The objective of this study is to test if chorionic villus sampling (CVS) is associated with fetal growth impairment, after controlling for maternal and fetal factors.

Study Design: Case-control study of singleton fetuses whose mothers had undergone CVS (N = 442) and 2969 controls. The primary outcomes were the prevalence of birthweight < 10th centile and birthweight <3rd centile; the prevalence of preeclampsia was the secondary outcome.

View Article and Find Full Text PDF

Objectives: The objective of the present study is to assess the performance of a high-risk human papillomavirus (HR-HPV) DNA test with individual HPV-16/HPV-18 genotyping as a method for primary cervical cancer screening compared with liquid-based cytology (LBC) in a population of Greek women taking part in routine cervical cancer screening.

Methods: The study, conducted by the "HEllenic Real life Multicentric cErvical Screening" (HERMES) study group, involved the recruitment of 4,009 women, aged 25-55, who took part in routine cervical screening at nine Gynecology Departments in Greece. At first visit cervical specimens were collected for LBC and HPV testing using the Roche Cobas 4800 system.

View Article and Find Full Text PDF

Purpose: To investigate the possible effect of demographic factors on HPV vaccination acceptance in Greece.

Methods: Analysis was performed on data from the "LYSISTRATA" project, a prospective, cross-sectional study, focusing on questions regarding the acceptance of HPV vaccination among Greek women for themselves, and their 13-year-old daughter or son. In total, 5,379 women participated in the study, between 2005 and 2011.

View Article and Find Full Text PDF