Search results for " procedures"
showing 10 items of 1653 documents
Short-Term Functional and Oncologic Outcomes of Nephron-Sparing Surgery for Renal Tumours ≥7cm
2011
Abstract Background Nephron-sparing surgery (NSS) for renal tumours preserves renal function and has become the standard approach for small renal tumours. Little is known about perioperative and oncologic outcomes of patients following NSS in renal tumours ≥7cm in the presence of a healthy contralateral kidney. Objective To analyse oncologic outcomes and perioperative morbidity in patients treated by NSS for renal tumours ≥7cm. Design, setting, and participants In total, 5767 patients were treated for renal tumours at two institutions from 1984 to 2009. In 91 patients, elective NSS was performed for renal tumours ≥7cm. Measurements Complication rates were assessed in detail and stratified u…
The Laparoscopic Approach to Control Intractable Pelvic Neuralgia: From Laparoscopic Pelvic Neurosurgery to the LION Procedure
2007
OBJECTIVE: To present different aspects and advantages of the laparoscopic approach to the pelvic nerves aimed at treating intractable pelvic neuralgia. METHODS: We report on a nonconsecutive series of 7 patients with different types and etiologies of chronic pelvic neuralgia, all of whom underwent laparoscopy. In all 7 cases, the neuralgia was refractory to medical management and had profound socioeconomic consequences for the patients. RESULTS: Techniques of laparoscopic transperitoneal neurolysis of several pelvic somatic nerves are described but also our technique of laparoscopic implantation of neuroprothesis for neuromodulation on somatic pelvic nerves or on autonomic pelvic nerves as…
Effect of Sirolimus Exposure on the Need for Preemptive Antiviral Therapy for Cytomeglovirus Infection after Allogeneic Hematopoietic Stem Cell Trans…
2019
The current study evaluates the clinical effect of sirolimus exposure on the occurrence of cytomegalovirus (CMV) DNAemia necessitating preemptive antiviral therapy. A total of 167 consecutive recipients of reduced-intensity conditioning (RIC) allogeneic hematopoietic stem cell transplantation (allo-HSCT) who received sirolimus- and tacrolimus-based graft-versus-host disease (GVHD) prophylaxis and whose CMV serostatus was positive for donors and/or recipients were included in this multicenter retrospective study. A parametric model with consecutive sirolimus blood levels describing the time to CMV DNAemia-RAT was developed using NONMEM version 7.4. Overall, 122 of 167 patients (73%) were all…
A Passive-Marker-Based Optical System for Computer-Aided Surgery in Otorhinolaryngology: Development and First Clinical Experiences
1999
Objectives: To develop a new type of optical computer-aided surgery (CAS) device that overcomes some of the restrictions of common systems and to examine its accuracy and usability under laboratory and intraoperative conditions. Study Design: Prospective study using laboratory experiments and intraoperative data collection. Methods: An optical CAS system applying passive optical markers for coordinate determination was developed. Laboratory accuracy measurements were obtained on a Plexiglas model with known coordinates of fiducial markers, before and after predefined table movements. Intraoperative accuracy measurements were recorded from 24 patients undergoing endonasal surgery of the para…
Brain-core temperature of patients before and after orthotopic liver transplantation assessed by DWI thermometry
2018
To assess brain-core temperature of end-stage liver disease patients undergoing orthotopic liver transplantation (OLT) using a temperature measurement technique based on the apparent diffusion coefficient of the cerebrospinal fluid in the lateral ventricles. The study group was composed of 19 patients with a model for end-stage liver disease (MELD) score of 23.7 who underwent MR imaging before and after OLT. MR imaging studies were performed with a 1.5T MR scanner. Brain-core temperature (T: °C) was calculated using the following equation from the apparent diffusion coefficient (D) of the cerebrospinal fluid in the lateral ventricles: $$T = {{2256.74} \mathord{\left/ {\vphantom {{2256.74} {…
Clinical evaluation of piezoelectric ear surgery
2008
We evaluated the use of piezoelectric surgery (Piezosurgery; Mectron Medical Technology; Carasco, Genoa, Italy) as a means of avoiding some complications of osteotomy and osteoplasty in otologic surgery, particularly in classic canal-wall-up mastoidectomy. Piezoelectric surgery is a recently developed system for cutting bone with microvibrations created by the piezoelectric effect. This effect occurs when an electric current is passed through certain ceramics and crystals, causing them to oscillate at ultrasonic frequencies. Our study population was made up of 20 adults with unilateral chronic otitis media. In all patients, piezoelectric surgery allowed for effective, precise, safe, easy, …
Dental trait anxiety and pain sensitivity as predictors of expected and experienced pain in stressful dental procedures.
2004
A prevailing hypothesis suggests that exaggerated pain expectations in dentally anxious and pain-sensitive patients might usually be disconfirmed by a lower level of pain experienced during treatment. The present study was conducted to investigate whether this contention also holds during stressful dental procedures. Patients reporting high and low levels of dental fear and of pain sensitivity were compared in their expected and experienced pain and in the concordance between the two measures. Participants were 97 patients undergoing extraction and root canal treatment. The measuring instruments used were the Dental Anxiety Scale (DAS), the Pain Sensitivity Index (PSI), affective and sensor…
Minimally invasive video-assisted thyroidectomy: four-year experience of a single team in a General Surgery Unit.
2013
Minimally invasive video-assisted thyroidectomy (MIVAT) is a surgical technique that has showed increasingly good results, particularly in endocrine surgery centers. The aim of this prospective, non-randomized study was to evaluate feasibility, advantages and critical aspects of MIVAT in a general surgery unit.Two hundred twenty-four patients underwent total thyroidectomy for benign thyroid disease from May, 2008 to April, 2011. They were divided into two groups: one underwent conventional thyroidectomy (CT), and the other underwent MIVAT. The inclusion criteria were thyroid volume ≤35 mL and main nodule size ≤35 mm. For each patient, socio-demographic variables, hospitalization data and ou…
Anatomic site evaluation of the palatal bone for temporary orthodontic anchorage devices.
2008
: Objectives: The aim of the present study was to assess the micromorphologic characteristics of the palatal bone from an implantologic standpoint. Materials and Methods: The material consisted of tissue blocks of autopsy material from 22 subjects (18 males, three females) between 18 and 63 years of age. The specimens comprised the anterior median palatal region from 5 to 10 mm behind the incisive foramen. They were prepared in the transversal plane according to ground thin-section technology. The midpalatal area as well as an area of 3 mm bilateral to the midline were assessed, and a classification of quantitative palatal bone availability was developed. Results: The findings could be divi…
A histological evaluation of the surgical margins from human oral fibrous-epithelial lesions excised with CO2 laser, Diode laser, Er:YAG laser, Nd:YA…
2018
Background We aim to evaluate the presence of histological artefacts in the surgical margins of human oral fibro-epithelial hyperplasias excised with lasers of different wavelengths, and also electrosurgical scalpel and cold scalpel. Moreover, we aim to determine if some of these instruments could impair the normal histological diagnosis of these lesions. Material and Methods We included 130 consecutive surgical samples of 80 females and 50 males (mean age of 53.82±16.55) with a histological diagnosis of an oral benign fibrous-epithelial hyperplasias. The samples were categorized into 6 groups according to the type of instrument used: CO2 laser group, diode laser group, Er:YAG laser group, …