Search results for "radical"
showing 10 items of 1401 documents
Self-Reported Long-Term Autonomic Function After Laparoscopic Total Mesometrial Resection for Early-Stage Cervical Cancer: A Multicentric Study.
2017
ObjectivesThis multicentric retrospective study investigates the early and long-term self-reported urinary, bowel, and sexual dysfunctions in early-stage cervical cancer patients who submitted to laparoscopic total mesometrial resection (L-TMMR), total laparoscopic radical hysterectomy, vaginal-assisted laparoscopic radical hysterectomy, and laparoscopic-assisted radical vaginal hysterectomy.MethodsCervical cancer patients, FIGO (International Federation of Gynecology and Obstetrics) stage IA2–IB1/IIA1 who submitted to nerve-sparing radical hysterectomy were recruited. Pelvic functions were assessed within 30 days (early outcome) and 12 months after surgery (long-term outcome).ResultsTwo hu…
Prevalence of lymph nodes in the parametrium of radical vaginal trachelectomy (RVT) specimen
2011
Objective: In order to evaluate radicality in fertility preserving surgery in women with early invasive cervical cancer we analyzed the parametrium of specimens of patients treated by radical vaginal trachelectomy for the presence of lymph nodes. We tried to identify morphologic factors associated with the presence of parametrial lymph nodes. Methods: We analyzed surgical specimens of 112 patients who underwent radical trachelectomy between June 2004 and April 2009 at the Department of Gynecologic Oncology at Charité Campus Benjamin Franklin and Campus Mitte. All parametrial tissue was step sectioned and a total of 1878H&E stained histological sections were analyzed. Results: In 8 patients …
Radical vaginal trachelectomy (RVT) combined with laparoscopic lymphadenectomy: Prospective study of 225 patients with early-stage cervical cancer
2011
Objective: The aim of the study was to prove the surgical and oncological safety of radical vaginal trachelectomy (RVT) and laparoscopic lymphadenectomy for patients with early-stage cervical cancer who are seeking parenthood. Methods: A database of 225 patients with early-stage cervical cancer and intention to treat by RVT after laparoscopic lymphadenectomy was prospectively maintained. A total of 212 patients were treated according to the protocol. The procedure was preformed in a standardized manner, and life table analysis was applied. Results: In the cohort of patients treated according to protocol, 8 recurrences occurred and 4 patients died from recurrence. The median follow-up time w…
Vena cava resection and bypass for recurrent cervical cancer
2021
A 42-year-old woman was diagnosed with a second para-aortic cervical cancer. The patient had undergone a radical hysterectomy with pelvic lymphadenectomy for FIGO stage IB1 squamous cervical cancer 3 years prior to current presentation. No adjuvant treatment was performed after the primary surgery
Inguinal Reconstruction Using Pedicled Rectus Abdominis Flap: A Useful Option for the Application of Radiotherapy.
2019
Given their high rate of complications, radical surgical procedures of anorectal and gynecological tumors require a reliable and individualized reconstruction. The latter is influenced by the frequent indication of adjuvant chemo/radiotherapy that they present. We describe the case of a patient with medical history of vulvar carcinoma that required radical surgery and bilateral inguinal lymphadenectomy. Because of the stage of the tumor, the application of postoperative radiotherapy was clinically indicated; however, after surgery, the patient developed bilateral inguinal ulcers that made postoperative radiotherapy application impossible. Using a radical surgical approach in combination wit…
A Generative Model of the Mutual Escalation of Anxiety Between Religious Groups
2018
We propose a generative agent-based model of the emergence and escalation of xenophobic anxiety in which individuals from two different religious groups encounter various hazards within an artificial society. The architecture of the model is informed by several empirically validated theories about the role of religion in intergroup conflict. Our results identify some of the conditions and mechanisms that engender the intensification of anxiety within and between religious groups. We define mutually escalating xenophobic anxiety as the increase of the average level of anxiety of the agents in both groups over time. Trace validation techniques show that the most common conditions under which …
Modeling Radicalization and Violent Extremism
2020
Given public anxiety about radicalization and violent extremism, it is not surprising that these topics have grabbed the attention of so many scholars in recent years. However, some have expressed concern over the fact that only a few studies in this relatively new field contain empirical data or systematic data analysis or develop causal models of the mechanisms generating these phenomena. We believe that computational modeling and simulation techniques can make a significant contribution to this scientific literature and eventually provide new tools for improving policy analysis. Here we briefly describe (1) an integrative theory of violent extremism proposed by Kruglanski and colleagues …
Mitochondrial oxidative stress plays a key role in aging and apoptosis
2000
Harman first suggested in 1972 that mitochondria might be the biological clock in aging, noting that the rate of oxygen consumption should determine the rate of accumulation of mitochondrial damage produced by free radical reactions. Later in 1980 Miquel and coworkers proposed the mitochondrial theory of cell aging. Mitochondria from postmitotic cells use O2 at a high rate, hence releasing oxygen radicals that exceed the cellular antioxidant defences. The key role of mitochondria in cell aging has been outlined by the degeneration induced in cells microinjected with mitochondria isolated from fibroblasts of old rats, especially by the inverse relationship reported between the rate of mitoch…
Mitochondria, oxidative stress and aging
2000
In the eighties, Miquel and Fleming suggested that mitochondria play a key role in cellular aging. Mitochondria, and specially mitochondrial DNA (mtDNA), are major targets of free radical attack. At present, it is well established that mitochondrial deficits accumulate upon aging due to oxidative damage. Thus, oxidative lesions to mtDNA accumulate with age in human and rodent tissues. Furthermore, levels of oxidative damage to mtDNA are several times higher than those of nuclear DNA. Mitochondrial size increases whereas mitochondrial membrane potential decreases with age in brain and liver. Recently, we have shown that treatment with certain antioxidants, such as sulphur-containing antioxid…
Biomarkers of oxidative and nitrosative damage in Alzheimer's disease and mild cognitive impairment
2009
Alzheimer's disease (AD) is the most common type of dementia in the elderly. Products of oxidative and nitrosative stress (OS and NS, respectively) accumulate with aging, which is the main risk factor for AD. This provides the basis for the involvement of OS and NS in AD pathogenesis. OS and NS occur in biological systems due to the dysregulation of the redox balance, caused by a deficiency of antioxidants and/or the overproduction of free radicals. Free radical attack against lipids, proteins, sugars and nucleic acids leads to the formation of bioproducts whose detection in fluids and tissues represents the currently available method for assessing oxidative/nitrosative damage. Post-mortem …