Publications by authors named "Keckstein J"

Background: The treatment of endometriosis and adenomyosis requires a complex, multidisciplinary approach. Some centres have established multidisciplinary teams (MDT) and regular meetings. There are currently no international data or recommendations.

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The translation of impedance (R), current (I), and voltage (V) into tissue effects and the understanding of the settings of electrosurgical units is not obvious if judged by the many questions during live surgery. Below 200 V, the current heats the tissue until the steam of boiling stops the current. Thus, slower heating, because of less energy or a larger contact area, results in deeper coagulation.

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Article Synopsis
  • Over 10% of women and girls are affected by endometriosis post-puberty, with surgery being a key method for both diagnosis and treatment; however, there are currently no quality indicators for endometriosis surgeries.
  • The QS ENDO study aims to enhance care quality in the DACH region by evaluating surgical practices through two phases: assessing reality using questionnaires and analyzing surgery data from certified centers.
  • The study analyzed 435 patient cases from October 2016, finding high rates of successful endometrioma resections (81%) and minimal complications (0.9%), while also documenting the specific surgical approaches used across various endometriosis phenotypes.
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The International Society of Ultrasound in Obstetrics and Gynecology (ISUOG) and International Deep Endometriosis Analysis (IDEA) group, the European Endometriosis League (EEL), the European Society for Gynaecological Endoscopy (ESGE), the European Society of Human Reproduction and Embryology (ESHRE), the International Society for Gynecologic Endoscopy (ISGE), the American Association of Gynecologic Laparoscopists (AAGL) and the European Society of Urogenital Radiology (ESUR) elected an international, multidisciplinary panel of gynecological surgeons, sonographers and radiologists, including a steering committee, which searched the literature for relevant articles in order to review the literature and provide evidence-based and clinically relevant statements on the use of imaging techniques for non-invasive diagnosis and classification of pelvic deep endometriosis. Preliminary statements were drafted based on review of the relevant literature. Following two rounds of revisions and voting orchestrated by chairs of the participating societies, consensus statements were finalized.

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Article Synopsis
  • A multidisciplinary panel from various international medical societies was formed to review literature on imaging techniques for diagnosing pelvic deep endometriosis.
  • They drafted 20 preliminary statements on the topic, which underwent multiple revisions and voting rounds to reach consensus among the panel.
  • Ultimately, the finalized document contains 14 statements with strong agreement, 5 with moderate agreement, and aims to guide clinicians in assessing and treating women suspected of having endometriosis.
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The International Society of Ultrasound in Obstetrics and Gynecology (ISUOG) and International Deep Endometriosis Analysis (IDEA) group, the European Endometriosis League (EEL), the European Society for Gynaecological Endoscopy (ESGE), ESHRE, the International Society for Gynecologic Endoscopy (ISGE), the American Association of Gynecologic Laparoscopists (AAGL) and the European Society of Urogenital Radiology (ESUR) elected an international, multidisciplinary panel of gynecological surgeons, sonographers, and radiologists, including a steering committee, which searched the literature for relevant articles in order to review the literature and provide evidence-based and clinically relevant statements on the use of imaging techniques for non-invasive diagnosis and classification of pelvic deep endometriosis. Preliminary statements were drafted based on review of the relevant literature. Following two rounds of revisions and voting orchestrated by chairs of the participating societies, consensus statements were finalized.

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Article Synopsis
  • An international panel of specialists from various medical societies was formed to review literature on imaging techniques for diagnosing pelvic deep endometriosis.
  • They drafted 20 consensus statements, with 14 achieving strong agreement and three moderate agreement after voting, refining the remaining statements through discussion.
  • The finalized consensus aims to assist clinicians in the assessment and surgical planning for women suspected of having endometriosis.
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The International Society of Ultrasound in Obstetrics and Gynecology (ISUOG) and International Deep Endometriosis Analysis (IDEA) group, the European Endometriosis League (EEL), the European Society for Gynaecological Endoscopy (ESGE), the European Society of Human Reproduction and Embryology (ESHRE), the International Society for Gynecologic Endoscopy (ISGE), the American Association of Gynecologic Laparoscopists (AAGL) and the European Society of Urogenital Radiology (ESUR) elected an international, multidisciplinary panel of gynecological surgeons, sonographers and radiologists, including a steering committee, which searched the literature for relevant articles in order to review the literature and provide evidence-based and clinically relevant statements on the use of imaging techniques for non-invasive diagnosis and classification of pelvic deep endometriosis. Preliminary statements were drafted based on a review of the relevant literature. Following two rounds of revisions and voting orchestrated by chairs of the participating societies, consensus statements were finalized.

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Endometriosis is a complex and chronic gynaecological disorder that affects millions of women worldwide, leading to significant morbidity and impacting reproductive health. This condition affects up to 10% of women of reproductive age and is characterised by the presence of endometrial-like tissue outside the uterus, potentially leading to symptoms such as chronic pelvic pain, dysmenorrhoea, dyspareunia, and infertility. The Montreux summit brought a number of experts in this field together to provide a platform for discussion and exchange of ideas.

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Purpose: The progression of deep endometriosis (DE) in women of reproductive age is highly variable. This study aimed to analyze the sonomorphological changes of rectal endometriosis over long periods of time and the influence of hormonal treatment.

Methods: This retrospective study included premenopausal women with rectal DE treated conservatively between 2002 and 2021.

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Objectives: The purpose of this investigation was to evaluate the inter- and intraobserver variability of the updated #Enzian classification of endometriosis on MRI and to evaluate the influence of reader experience on interobserver concordance.

Methods: This was a prospective single-center study. All patients were included who received an MRI of the pelvis for evaluation of endometriosis between March and July 2023 and who have provided written informed consent.

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Background: Management of endometriosis should be based on the best available evidence. The pyramid of evidence reflects unbiased observations analysed with traditional statistics. Evidence-based medicine (EBM) is the clinical interpretation of these data by experts.

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Evidence-based data for endometriosis management are limited. Experiments are excluded without adequate animal models. Data are limited to symptomatic women and occasional observations.

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Endometriosis represents one of the most common causes of life-impacting chronic pelvic pain and female infertility. Magnetic resonance imaging (MRI) plays an increasing role in the diagnosis and mapping of endometriosis, while diagnostic laparoscopy currently tends to be reserved for the patients with negative imaging results. The #Enzian, published in 2021, proposes a new comprehensive classification system of endometriosis, combining a complete staging of deep infiltrative endometriosis with the evaluation of peritoneal/ovarian/tubal localizations and the presence of adenomyosis.

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Endometriosis significantly reduces patients' quality of life and is additionally a burden on healthcare and social security systems. There are currently no quality indicators for the treatment of endometriosis. The care of patients with endometriosis must be considered inadequate.

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Objective: To calculate the predictive value and thus the clinical usefulness of transvaginal ultrasound (US) imaging for the management of deep endometriosis, knowing that the positive predictive value (PPV) varies with the prevalence and probably with the volume and location of the disease.

Data Sources: After registration on PROSPERO (CRD42022366323), PubMed was searched for all reports describing the diagnostic accuracy of US imaging for deep endometriosis published between January 1, 2000, and October 20, 2022.

Methods Of Study Selection: The 536 articles on "endometriosis AND US And diagnosis" were hand searched, and 30 reports describing sensitivity and specificity of deep endometriosis were found.

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Objective: Two-dimensional (2D) transvaginal ultrasound (TVS) is an accessible and cost-effective diagnostic tool for the detection of adenomyosis. Different ultrasound features related to adenomyosis have been described, but the predictive value of each ultrasound sign and their combinations requires further investigation. We aimed to analyze the accuracy of 2D-TVS and describe possible combinations of ultrasound signs with a high predictive value in the diagnosis of adenomyosis.

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In deep endometriosis (DE), clusters of endometrium-like cells penetrate more than 5 mm below the peritoneum: The affected organs and tissue structures can eventuate in an alteration of the anatomy with eliminated organ boundaries, which in some cases can pose a real surgical challenge, even for experienced surgeons. A comprehensive description of the different manifestations of the disease can be found in the #Enzian classification. Since the operation is usually the foundation for the successful treatment of DE, what is important are conclusive indications, appropriate preoperative preparation and, above all, appropriate experience on the part of the surgical team.

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Gynecological ultrasonography plays a central role in the management of endometriosis. The rapid technical development as well as the currently increasing evidence for non-invasive diagnostic methods require an updated compilation of recommendations for the use of ultrasound in the management of endometriosis. The present work aims to highlight the accuracy of sonography for diagnosing and classifying endometriosis and will formulate the present list of key messages and recommendations.

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Background: Patients suffering from colorectal deep endometriosis (DE) experience gastrointestinal symptoms with almost the same frequency as gynecological pain symptoms. Preoperatively existing gastrointestinal symptoms may translate into pathological gastrointestinal quality of life index (GIQLI) and low anterior resection syndrome scores (LARS). This prospective questionnaire-based case control study aims to assess the prevalence of gastrointestinal complaints reflected by changes in LARS and GIQLI scores in patients with colorectal deep endometriosis prior to surgical treatment and compare those to a healthy control group.

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Background: Without an adequate animal model permitting experiments the pathophysiology of endometriosis remains unclear and without a non-invasive diagnosis, information is limited to symptomatic women. Lesions are macroscopically and biochemically variable. Hormonal medical therapy cannot be blinded since recognised by the patient and the evidence of extensive surgery is limited because of the combination of low numbers of interventions of variable difficulty with variable surgical skills.

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Article Synopsis
  • The study compares the #Enzian classification and the revised American Society for Reproductive Medicine (rASRM) stages in assessing the extent of endometriosis in women undergoing radical surgery for deep endometriosis.
  • Findings show that while the severity of endometriotic lesions and adhesions generally increases with higher rASRM stages, deep endometriosis can also occur in early stages, leading to potential underestimation of disease severity.
  • The research involved 735 women and indicates that many with rASRM stage 1 had significant deep endometriosis, highlighting the need for better classification methods.
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Deep endometriosis (DE) surgery often requires advanced knowledge in laparoscopic surgery due to the location of affected organs such as the bowel, vagina, rectovaginal space including adjacent nerve structures, ureters and urinary bladder. Patients are at risk of serious complications and sequelae like anastomotic leakage, rectovaginal fistula and voiding dysfunction. Detailed knowledge of disease extent and location by transvaginal sonography (TVS) can aid the clinician to pre-operatively plan complex surgeries and estimate associated risks.

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