Search results for "Pith"
showing 10 items of 1308 documents
Methylene blue-aided chromoendoscopy for the detection of intraepithelial neoplasia and colon cancer in ulcerative colitis.
2003
Timely diagnosis of intraepithelial neoplasias (IN) and colitis-associated colon carcinomas (CRC) is crucially important for the treatment of ulcerative colitis (UC). We performed a randomized, controlled trial to test whether chromoendoscopy (CE) might facilitate early detection of IN and CRC in UC.A total of 263 patients with long-standing UC (or=8 years) were screened for potential inclusion in the study, 165 of whom were randomized at a 1:1 ratio to undergo conventional colonoscopy or colonoscopy with CE using 0.1% methylene blue. Five mucosal biopsy specimens were taken every 10 cm between the rectum and cecum. Circumscript lesions in the colon were evaluated according to a modified pi…
Prevalence of human papillomavirus types in women screened by cytology in Germany.
2007
Incidence and mortality rates of cervical cancer are higher in Germany than in other Western European countries. Type-specific human papillomavirus (HPV) distribution was investigated for the first time in Germany in an epidemiological study including 8,101 women. Women above the age of 30 years, self-referring for cervical cancer screening, were enrolled in two study centers in Hannover (Northern Germany) and Tubingen (Southern Germany). Participants were screened by the Pap smear and the hybrid capture 2 (HC2) test using the high-risk probe. All samples that were positive by the HC2 test were genotyped using the prototype PGMY09/11 PCR line blot assay. Most women in the study population h…
Surgical outcomes of diaphragmatic resection during cytoreductive surgery for advanced gynecological ovarian neoplasia: A randomized single center cl…
2022
Introduction: Ovarian cancer (OC) represent nearly 4% of gynecologic malignancies and it is often diagnosed at advanced stage. Diaphragmatic surgery, a fundamental step of advanced stage ovarian cancer (ASOC) debulking surgery, is associated with a high post-operative complication incidence, which is supposedly reduced with thoracostomy tube placement. We assessed the role of intra-operative thoracostomy tube placement, as a prevention measure for post-operative complications, after diaphragmatic resection. Methods: This was a single center prospective randomized trial. Ovarian cancer patients, who underwent mono-lateral diaphragmatic resection, were randomized 1:1 into two arms. Arm A incl…
A multicentric randomized study comparing two techniques of magnification assisted loop excision of high-grade cervical intraepithelial neoplasia: vi…
2013
Purpose: To compare loop excisions of cervical intraepithelial neoplasia grade 2 or worse (CIN 2+) under video exoscopy, or colposcopic guidance, with respect to safety and effectiveness. Methods: Prospective multicentric randomized trial of 300 patients, undergoing loop excision for CIN 2+ either under video exoscopy (group A) or colposcope (group B) guidance. Intra- and post-operative complications, resection margins, and removed cervical volume in both groups were evaluated. Results: 19.3% of patients in video exoscopy group and 15.5% in colposcopy group (p = 0.67) had transformation zone (TZ) 3. 45/151 (29.8%) of group A patients and 48/149 (32.2%) of group B patients underwent top-hat …
Feasibility of a modified outpatient regimen of intravenous/intraperitoneal chemotherapy in optimally debulked stage III ovarian cancer patients: a G…
2011
Objectives: The objective of the study was to assess the feasibility, toxicity, and reasons for early discontinuation of a modified outpatient intraperitoneal/intravenous (IP/IV) chemotherapy regimen for the treatment of patients with optimally debulked stage III ovarian cancer. Methods: Between February 2006 and November 2008, 51 consecutive patients from Institutions of the Spanish Ovarian Cancer Group (GEICO) were treated with a modified outpatient IP chemotherapy regimen. Patients received IV paclitaxel 175 mg/m2 over 3 hours on day 1, followed by IP cisplatin 100 mg/m2 (or 75 mg/m2 according to the principal investigator9s criteria) on day 2. On day 8, patients received IP paclitaxel 6…
Benefits of Direct Colposcopic Vision for Optimal LLETZ Procedure: A Prospective Multicenter Study.
2015
International audience; Objective The aim of the study was to assess whether direct colposcopic ă vision (DCV) of the cervix during large loop excision of the ă transformation zone (LLETZ) is associated with a decrease in the volume ă and dimensions of specimens or affects margin status at histology. ă Materials and Methods A prospective multicenter observational study of ă 216 women who underwent LLETZ for grades 2 and 3 cervical ă intraepithelial neoplasia was conducted. The volume and dimensions ă (circumference, length, and thickness) of the surgical specimens were ă measured before fixation. Data were compared according to the use of ă colposcopy during LLETZ. The following 3 groups we…
Tumor Vascularity—A Novel Prognostic Factor in Advanced Cervical Carcinoma
1995
Objective: In the search for the optimal treatment of advanced cervical cancer, the identification of valid prognostic factors obtainable without histopathologic investigation of the entire tumor and the locoregional lymph nodes is of paramount interest. Tumor microvessel density has recently been demonstrated to correlate strongly with disease aggressiveness in breast cancer and other malignancies. Methods: We established a computerized image analysis system to quantify tumor microvascularity by using the closest-individual method, which determines the distribution of distances from random points within the tumor to the closest microvessel (DTCMV). Tumor microvascularity was assessed in pa…
Subepithelial connective tissue graft with or without enamel matrix derivative for the treatment of Miller class I and II gingival recessions: a cont…
2012
Background The aim of this study was to evaluate whether the combination of enamel matrix derivative (EMD) with subepithelial connective tissue graft (SCTG) plus coronally advanced flap (CAF) would improve the treatment outcomes of Miller class I and II gingival recessions when compared with the same technique (SCTG plus CAF) alone. Methods The study was designed as a randomized, parallel, controlled, double-blinded clinical trial. Forty-two patients were randomly assigned in the test group (SCTG plus EMD) and in the control group (SCTG). Patients had at least one gingival recession ≥ 2 mm. The clinical parameters were evaluated at baseline and at 14 d, 1, 3, 6 and 12 mo follow-up time poin…
Chromoscopy-Guided Endomicroscopy Increases the Diagnostic Yield of Intraepithelial Neoplasia in Ulcerative Colitis
2007
Background & Aims: Because of the large number of biopsy specimens, surveillance colonoscopy in ulcerative colitis (UC) is currently time consuming and significant flat lesions still may be missed. In this study we assessed the value of combined chromoscopy and endomicroscopy for the diagnosis of intraepithelial neoplasias in a randomized controlled trial. Methods: A total of 161 patients with long-term UC in clinical remission were randomized at a 1:1 ratio to undergo conventional colonoscopy or chromoscopy with endomicroscopy. Eight patients were excluded because of insufficient bowel preparation. In the conventional colonoscopic group (n = 73), random biopsy examinations and targeted bio…
Clinical relevance of objectifying colposcopy.
2014
Purpose: To evaluate the clinical value of four objective colposcopic criteria inner border, ridge sign, cuffed crypt openings and rag sign to diagnose cervical intraepithelial neoplasia grade 2 or worse (CIN 2+), using video exoscopy and to compare it to subjective graduating signs. Methods: Retrospective evaluation of video recordings of 444 patients, referred for diagnostic colposcopy, who underwent cervical biopsies, and if indicated loop excisions. Most severe histological diagnosis was recorded. Sensitivity, specificity, positive predictive value (PPV), negative predictive value (NPV), and likelihood ratios (LR) with 95 % confidence interval, for CIN 2+ were calculated. Results: Singl…