60 research outputs found

    Ileal vaginoplasty as vaginal reconstruction in transgender women and patients with disorders of sex development: an international, multicentre, retrospective study on surgical characteristics and outcomes

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    OBJECTIVE: To describe the surgical outcomes of ileal vaginoplasty in transgender women and patients with disorders of sex development (DSD). PATIENTS AND METHODS: Transgender women and patients with DSD, who underwent ileal vaginoplasty at the VU University Medical Center Amsterdam, University Hospital Trieste, University Hospital Essen, and Belgrade University Hospital, were retrospectively identified. A chart review was performed, recording surgical technique, intraoperative characteristics, complications, and re-operations. RESULTS: We identified a total of 32 patients (27 transgender and five non-transgender), with a median (range) age of 35 (6-63) years. Ileal vaginoplasty was performed as the primary procedure in three and as a revision procedure in the remaining 29. The mean (sd) operative time was 288 (103) min. The procedure was performed laparoscopically (seven patients) or open (25). An ileal 'U-pouch' was created in five patients and a single lumen in 27. Intraoperative complications occurred in two patients (one iatrogenic bladder damage and one intraoperative blood loss necessitating transfusion). The median (range) hospitalisation was 12 (6-30) days. Successful neovaginal reconstruction was achieved in all. The mean (sd) achieved neovaginal depth was 13.2 (3.1) cm. The median (range) clinical follow-up was 35 (3-159) months. In one patient a recto-neovaginal fistula occurred, which lead to temporary ileostomy. Introital stenosis occurred in four patients (12.5%). CONCLUSION: Ileal vaginoplasty can be performed with few intra- and postoperative complications. It appears to have similar complication rates when compared to sigmoid vaginoplasty. It now seems to be used predominantly for revision procedures

    Wize Mirror - a smart, multisensory cardio-metabolic risk monitoring system

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    In the recent years personal health monitoring systems have been gaining popularity, both as a result of the pull from the general population, keen to improve well-being and early detection of possibly serious health conditions and the push from the industry eager to translate the current significant progress in computer vision and machine learning into commercial products. One of such systems is the Wize Mirror, built as a result of the FP7 funded SEMEOTICONS (SEMEiotic Oriented Technology for Individuals CardiOmetabolic risk self-assessmeNt and Self-monitoring) project. The project aims to translate the semeiotic code of the human face into computational descriptors and measures, automatically extracted from videos, multispectral images, and 3D scans of the face. The multisensory platform, being developed as the result of that project, in the form of a smart mirror, looks for signs related to cardio-metabolic risks. The goal is to enable users to self-monitor their well-being status over time and improve their life-style via tailored user guidance. This paper is focused on the description of the part of that system, utilising computer vision and machine learning techniques to perform 3D morphological analysis of the face and recognition of psycho-somatic status both linked with cardio-metabolic risks. The paper describes the concepts, methods and the developed implementations as well as reports on the results obtained on both real and synthetic datasets

    Motivational modulation of bradykinesia in Parkinson's disease off and on dopaminergic medication.

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    Motivational influence on bradykinesia in Parkinson's disease may be observed in situations of emotional and physical stress, a phenomenon known as paradoxical kinesis. However, little is known about motivational modulation of movement speed beyond these extreme circumstances. In particular, it is not known if motivational factors affect movement speed by improving movement preparation/initiation or execution (or both) and how this effect relates to the patients' medication state. In the present study, we tested if provision of motivational incentive through monetary reward would speed-up movement initiation and/or execution in Parkinson's disease patients and if this effect depended on dopaminergic medication. We studied the effect of monetary incentive on simple reaction time in 11 Parkinson's disease patients both "off" and "on" dopaminergic medication and in 11 healthy participants. The simple reaction time task was performed across unrewarded and rewarded blocks. The initiation time and movement time were quantified separately. Anticipation errors and long responses were also recorded. The prospect of reward improved initiation times in Parkinson's disease patients both "off" and "on" dopaminergic medication, to a similar extent as in healthy participants. However, for "off" medication, this improvement was associated with increased frequency of anticipation errors, which were eliminated by dopamine replacement. Dopamine replacement had an additional, albeit small effect, on reward-related improvement of movement execution. Motivational strategies are helpful in overcoming bradykinesia in Parkinson's disease. Motivational factors may have a greater effect on bradykinesia when patients are "on" medication, as dopamine appears to be required for overcoming speed-accuracy trade-off and for improvement of movement execution. Thus, medication status should be an important consideration in movement rehabilitation programmes for patients with Parkinson's disease

    Determination of parameter relations within non-linear models

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    Mineral comminution circuits: their operation and optimisation

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