1,051 research outputs found
Transoral Robotic Surgery for Obstructive Sleep Apnea: Past, Present, and Future
No full textNocturnal upper airway collapse often involves the obstruction at the tongue base. Several surgical procedures have been developed in recent years to address this area in continuous positive airway pressure-nonadherent patients and include hyolingual advancement, tongue suture suspension, and various lingual resection techniques. Traditional tongue base resection is generally done either via a transcervical technique or transorally with an endoscope for visualization. Each of these approaches has significant potential limitations. The unsurpassed visualization, dexterity, and control provided by the Da Vinci Surgical System offer many benefits for the surgeon compared with the other technologies
A Florentine family in crisis: the Strozzi in the fifteenth century.
No full textPhDIn 1434 the Strozzi lineage had held a leading position in
Florentine society and government for at least one hundred and fifty
years, and was one of the largest and wealthiest of the city's
patrician lineages. The records of the catasto of 1427 and of the
scrutiny of 1433 are used to give a profile of the dominant social,
economic and political position of the Strozzi before the advent of
Medicean dominance. Their record of electoral success, and the
political and cultural leadership of influential and respected men
such as Palla di Nofri and Matteo di Simone, with other factors, put
the Strozzi amongst the greatest enemies of the victorious Medicean
regime of late 1434. The effects of political opposition and exile
on the lineage are examined both directly, through records of office-holding,
and indirectly through such indicators as marriage alliances
and household wealth. The two most prominent lines of the Strozzi
were exiled after 1434. Palla di Nofri's life and preoccupations in
his Paduan exile are examined, together with the lives of his sons;
none of these Strozzi ever returned to Florence, pursued as they were
by the enmity of the Medicean regime. The very different careers of
Filippo di Matteo and his brother Lorenzo are also examined: how they
succeeded in founding a lucrative bank in Naples, and in returning to
Florence to 'rebuild' (rifare) the position of the Strozzi lineage
there. The final decades of the century saw the Strozzi in an
economically more secure position, due substantially to the efforts
of Filippo. Except for a very small number of its members admitted
into the regime, most of the lineage is here shown to have remained
excluded from significant political office until after the fall of
the Medici regime in 1494
Tips and tricks in transoral robotic surgery for challenging vascular tumors
No full textSurgical removal of head-neck vascular neoplasms may have severe complications, although surgery remains a very important treatment modality. One of the most important aspects is to avoid the rupture of the tumor's capsule and to minimize functional complications, especially in the excision of benign tumors. The transoral robotic surgery allows removing lesions in challenging anatomical areas. Furthermore, the current robotic instrumentation does not allow a fine dissection of the structures and capsule rupture is a potential event. Here, the authors describe a minimally invasive technique using transoral robotic surgery for removal of vascular tumors in head-neck. Particular attention was given to the description of the diagnostic work up, the preoperative assessment and the surgical steps. No complications were encountered postoperatively. Transoral robotic surgery for vascular tumors appears to be a safe and feasible technique with minimal complications
Transoral Robotic Surgery (TORS) for Bilateral Eagle Syndrome
No full textEagle syndrome is a rare and poorly understood clinical condition caused by an elongated or disfigured styloid process. The possible managements of Eagle syndrome include conservative medical treatment or surgical intervention. The surgical removal of the elongated styloid process may be efficiently achieved either by an intraoral or a transcervical approach. An effective styloidectomy may be either total or partial, provided the bony residue's length is within the range of normality. Here, we report our experience with a bilateral robotic-assisted styloidectomy in a young female patient. Our experience showed that this procedure is a safe alternative to traditional surgical approaches, granting an excellent view and a safe manipulation by robotic arms, and, thereby, avoiding iatrogenic damage to neurovascular structures. Moreover, transoral robotic surgery could represent the gold standard for the treatment of bilateral Eagle syndrome cases allowing a quick and safe single-time surgery
A CFD computational model for the optimization of transport phenomena in a hollow fiber bioreactor for artificial liver
No full textSaba, A Traditional Grape Molasse From Italy: Preliminary Analytical Characterization in Comparison With Fruit Pekmez
No full textFruit juice molasses, from grapes, mulberries and many other fruits, still represent important
traditional food products from the Balkans to the Caucasus, where they are indicated as
“pekmez” and its linguistic variants. In Italy, grapes have always been primarily used for wine
production. However, locally available resources were fully exploited in the past: saba or sapa
is a grape molasse obtained from unfermented juice slowly boiled for 24-48 hours, to obtain
a brownish, dense, very sweet syrup, storable for long time. Saba was used as a food, to
accompany cereal gruels or bread and, in less restricted situations, to season meat, cheese,
and to prepare particular pastries (“tortelli”) and jams (“savor”). After being almost forgotten,
in recent years saba has been resumed and is nowadays produced by local firms throughout
central Italy, where it is also the subject of local festivals.
In this work basic physical and chemical traits of several commercial saba samples from
different areas of Italy were analyzed and compared to samples of pekmez from Turkey and
Armenia and sladko from Bulgaria.
Saba dry matter and soluble solid content were respectively 68% and 63%, with high
variability among samples. Average titratable acidity was 14.8 g TAEs/L. Pekmez and sladko
showed lower variability and higher average dry matter and Brix with respect to Italian saba,
probably because of the tendency to reduce cooking time and temperature by some processors
in Italy, in order to increase yield and avoid the production of unwanted molecules.
Acidity was more stable and less affected by cooking, allowing to relate the differences among
samples to raw materials (species or cultivars). Titratable acidity and pH were more variable
in pekmez than in saba as a consequence of the very different raw materials used (mulberry,
carob, pomegranate, grapes). Pomegranate pekmez had very high acidity
A cfd computational model for the optimization of transport phenomena in a rotating hollow fiber bioreactor for artificial liver
No full textVues présentes sur le celtique cisalpin
No full textPresent views on Cisalpine Celtic.
During the last twenty years, the knowledge of Lepontic and of Italian Gaulish has been notably enriched by very important finds, and also by numerous studies. The author proposes a synthesis of all new linguistical and cultural data provided by epigraphy in this particular resort.Dans les vingt dernières années la connaissance du lépontique et du gaulois d’Italie a été notablement enrichie par certaines trouvailles fort importantes ainsi que par de nombreuses études. Tableau synthétique des nouvelles données linguistiques et culturelles apportées par l’épigraphie de ce domaine.Motta Filippo. Vues présentes sur le celtique cisalpin. In: Etudes Celtiques, vol. 29, 1992. Actes du IXe congrès international d'études celtiques. Paris, 7-12 juillet 1991. Deuxième partie : Linguistique, littératures. pp. 311-318
Trans-oral robotic surgery for a Ewing's sarcoma of tongue in a pediatric patient: a case report
No full textThe Ewing's sarcoma Family of Tumors (EFT) includes classic Ewing's Sarcoma (ES) of bone, Extraskeletal Ewing's Sarcoma (EES) and malignant peripheral primitive Neuroectodermal Tumor (pNET) of bone and soft tissue.
ES is an aggressive tumor with a high incidence of local recurrence and distant metastasis, which is more common in males respect to females, particularly in the first 2–3 decades of life.1 The skeletal form is more common and typically occurs in the long bones of the extremities. The extra skeletal form occurs in the soft tissues of the lower extremities, paravertebral tissues, chest wall, retroperitoneum and rarely in the head and neck region in about 1–4% of cases.2 Involvement of the head and neck is usually identified in the nasal or oral cavities, sinuses or soft tissues of the neck.3 Primary Ewing's sarcoma of the base of tongue is exceedingly rare and we present the first case in literature in a 16 year-old male treated by Trans-Oral Robotic Surgery (TORS) and postoperative chemotherapy
Combined transoral robotic tongue base surgery and palate surgery in obstructive sleep apnea‐hypopnea syndrome: Expansion sphincter pharyngoplasty versus uvulopalatopharyngoplasty
No full textBackground Transoral robotic surgery (TORS) for obstructive sleep apnea-hypopnea syndrome is a relatively young technique principally devised for managing apneas in the tongue base (TB) area and supraglottic larynx. This procedure is included in the so-called "multilevel surgery" often including a palatal and nasal surgery. Methods We carried out a retrospective analysis in order to understand in detail the relative impact on apneas of the 2 different procedures carried out in the palate area (expansion sphincter pharyngoplasty and uvulopalatopharyngoplasty). We evaluated 2 groups, each of 12 cases, which were sorted according to the primary selection criteria of statistically comparable preoperative apnea-hypopnea index (AHI), sex, age, body mass index (BMI), and volume of removed TB tissue. Results Postoperative AHI registered was of 9.9 ± 8.6 SD for the expansion sphincter pharyngoplasty group and 19.8 ± 14.1 SD for the uvulopalatopharyngoplasty group. Conclusion As the palate component of our multilevel procedure, expansion sphincter pharyngoplasty, including conventional nose surgery and robotic surgery, seems to be superior to uvulopalatopharyngoplasty. © 2013 Wiley Periodicals, Inc
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