1,461 research outputs found

    Rare jaw bone tumor: The importance of multidisciplinary management and minimally invasive treatment

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    Objective: The aim of this study was to present a mini review of oral Cementoblastoma and to report a particular case of this tumor. The Cementoblastoma is a rare benign lesion that represents less than 1-6% of all odontogenic tumors. Cementoblastoma, in the current WHO classification of odontogenic tumors, falls under the category of mesenchymal tumors (WHO 2017) and it is characterized by the proliferation of cementum-like tissue and, in all cases, tends to be associated with an erupting permanent tooth, most often the first molar. Case Presentation: A 15-year-old female presented a great Cementoblastoma with cortical expansion that affected the left mandibular body, extending from the canine to the first premolar (size 28x24 mm) and involving the mandibular canal. Surgery was performed under general anesthesia with total excision of the lesion, which was then sent for histological analysis. Due to the high risk of nerve injuries and the extreme fragility of the remaining bone after surgery, which required plates and intermaxillary blockage, the surgical site was regenerated with an iliac crest graft together with autologous and synthetic bone. Results: For the mini-review, 107 articles were found, but only 26 were selected. The patient was monitored for 12 months after surgery; a perfect healing was reported without complications, and she showed no signs of recurrence. Conclusions: This case report emphasizes the usefulness of clinical choices in a rare case of cementoblastoma of great size in a very young patient. In this condition, finding the most effective eradicative and reconstructive treatment, following the last published protocols, could achieve optimal clinical and psychological patient outcomes

    Root Fractures in the Primary Teeth and Their Management: A Scoping Review

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    (1) Background: Traumatic dental injuries constitute a major global health problem. Primary deciduous teeth of the upper frontal group are frequently affected by trauma, especially at an early age. It is important to treat primary traumatic injuries because early tooth loss can lead to aesthetic and functional alterations. The most common injuries are extrusion, lateral luxation, and intrusion. Root fracture is a less common complication that can lead to tooth extraction if not properly diagnosed and managed. However, there are a lack of data regarding primary root fracture treatment. The literature was reviewed to study the current knowledge on the treatment of these injuries, and to propose an operative protocol based on the results obtained. (2) Methods: A literature search was performed on Web of Science, PubMed/MEDLINE, and SCOPUS. The research focused on the following features: age of the patient; localization of the root fracture and type of displacement suffered (intrusive, extrusive, or lateral); type of emergency treatment or diagnostic test performed and their compliance with IADT guidelines; follow-up duration. (2) Results: Only 8 articles fully met the inclusion criteria, with a total of 46 patients and 62 root fractures. Out of a total of 62 root fractures, regarding only upper incisors, the most common treatment was splinting (n = 39) for a period ranging from 3 weeks to 3 months (with an average of six weeks). No treatment was performed for 23 of the root fractures. The splinting performed in most of the included cases was semi-rigid, with the splint held in place using a composite resin material. An orthodontic splint using brackets and 0.5 mm stainless steel wire was used in only in one study. (4) Conclusions: We deduced that the root fracture of primary teeth is a rare traumatic dental injury that can cause numerous complications, such as eruptive problems in the permanent teeth. Correct radiological diagnosis, immediate repositioning and semi-rigid splinting could be conservative methods to prevent premature tooth loss in very young patients

    Dental pathology in present-day and copper age samples

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    Dental paleopathology has become an excellent discipline to reconstruct the oral health of ancient populations and its trend from the past to the present day, especially regarding dietary habits. Our preliminary research aims to perform a comparative analysis on dental health status of two widely chronologically distant samples from Sardinia: the first one dates back to the Copper Age (III mill. B.C.) and comes from a collective hypogean burial named Scab’e Arriu (Siddi, SU), the second one is composed by extracted teeth of present-day individuals, collected during some traineeships at the Department of Surgical Science of the Dentistry School, in Cagliari

    Resource use by patients hospitalized with community-acquired pneumonia in Europe: analysis of the REACH study

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    Background: Management of community-acquired pneumonia (CAP) places a considerable burden on hospital resources. REACH was a retrospective, observational study (NCT01293435) involving adults >= 18 years old hospitalized with CAP and requiring in-hospital treatment with intravenous antibiotics conducted to collect data on current clinical management patterns and resource use for CAP in hospitals in ten European countries. Methods: Data were collected via electronic Case Report Forms detailing patient and disease characteristics, microbiological diagnosis, treatments before and during hospitalization, clinical outcomes and health resource consumption. Results: Patients with initial antibiotic treatment modification (n = 589; 28.9%) had a longer mean hospital stay than those without (16.1 [SD: 13.1; median 12.0] versus 11.1 {SD: 8.9; median: 9.0] days) and higher ICU admission rate (18.0% versus 11.9%). Septic shock (6.8% versus 3.0%), mechanical ventilation (22.2% versus 9.7%), blood pressure support (fluid resuscitation: 19.4% versus 11.4%), parenteral nutrition (6.5% versus 3.9%) and renal replacement therapy (4.2% versus 1.4%) were all more common in patients with treatment modification than in those without. Hospital stay was longer in patients with comorbidities than in those without (mean 13.3 [SD: 11.1; median: 10.0] versus 10.0 [SD: 7.5; median: 8.0] days). Conclusions: Initial antibiotic treatment modification in patients with CAP is common and is associated with considerable additional resource use. Reassessment of optimal management paradigms for patients hospitalized with CAP may be warranted

    Microwave Spectroscopy Investigation of Carasau Bread Doughs: Effects of Composition up to 8.5 GHz

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    Carasau bread is a flat bread, typical of Sardinia (Italy). The market of this food product has a large growth potential, and its industry is experiencing a revolution, characterized by digitalization and automation. To monitor the quality of this food product at different manufacturing stages, microwave sensors and devices could be a cost-effective solution. In this framework, knowledge of the microwave response of Carasau dough is required. Thus far, the analysis of the microwave response of Carasau doughs through dielectric spectroscopy has been limited to the dynamics of fermentation. In this work, we aim to perform complex dielectric permittivity measurements up to 8.5 GHz, investigating and modeling the role of water amount, salt and yeast concentrations on the spectra of this food product. A third-order Cole–Cole model was used to interpret the microwave response of the different samples, resulting in a maximum error of 1.58% and 1.60% for the real and imaginary parts of permittivity, respectively. Thermogravimetric analysis was also performed to support the microwave spectroscopy investigation. We found that dielectric properties of Carasau bread doughs strongly depend on the water content. The analysis highlighted that an increase in water quantity tends to increase the bounded water fraction at the expense of the free water fraction. In particular, the free water amount in the dough is not related to the broadening parameter (Formula presented.) of the second pole, whereas the bound water weight fraction is more evident in the (Formula presented.) and (Formula presented.) parameters. An increase in electrical conductivity was observed for increasing water content. The microwave spectrum of the real part of the complex permittivity is slightly affected by composition, while large variation in the imaginary part of the complex dielectric permittivity can be identified, especially for frequencies below 4 GHz. The methodology and data proposed and reported in this work can be used to design a microwave sensor for retrieving the composition of Carasau bread doughs through their dielectric signature

    Functionalization and Coordination Effects on the Structural Chemistry of Pendant Arm Derivatives of 1,4,7-trithia-10-aza-cyclododecane ([12]aneNS3)

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    The effect of different pendant arms on the structural chemistry of the 1,4,7-trithia-10-aza-cyclododecane ([12]aneNS3) macrocycle is discussed in relation to the coordination chemistry of all known functionalized derivatives of [12]aneNS3, which have been structurally characterized

    Low adherence to therapy and co-morbid depressive episodes are independent determinants of early death in people with cancer

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    Objective: The demanding nature of oncological therapies may affect treatment motivation and adherence, leading to an increased risk of premature death. Exploring the interaction between depressive episodes and treatment adherence is essential, considering how depression may influence patients' willingness to continue treatment. This study aims to investigate the association between depressive episodes, low treatment adherence, and premature death in individuals with cancer. The study also assessed whether low adherence to therapy acted as a mediator in the relationship between depression and the risk of early death. Participants and Methods: This is a 9-month cohort study in which participants were enrolled in two Italian Oncology hospital units. The Patient Health Questionnaire (PHQ-9) was used for depression screening. Stratified analyses were conducted to explore the relationship between depression, low adherence, and premature death. Results: Out of 263 subjects, depressive episode frequency was 48.2% and low adherence was 9.9%. After 9 months, 13.7% had died. There was a significative association between experiencing a depressive episode (RR=2.14, 95% CI: 1.08-4.39) and low adherence (RR=2.2, 95% CI: 1.01-4.48) upon cohort entry and being deceased at month 9 of observation. The risk associated with depression was found to persist even after accounting for the level of adherence to therapy through standardization (MH-OR=3.11; 95% CI: 1.52-6.34). Conclusions: Individuals with cancer who experience a depressive episode or demonstrate low adherence to therapy are at risk for premature death. Early intervention targeting depressive symptoms and treatment adherence may improve oncological-related outcomes

    Adherence to treatment in patients with solid and hematological cancers. Could spiritual and psychological support facilitate optimal adherence?

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    ABSTRACT – Objective: Cancer-related diseases pose a substantial public health challenge; however, recent treatments have enhanced patient outcomes. Adherence to therapy is crucial, and research focuses on elucidating the factors that influence it. Limited information exists on medication adherence in cancer patients. This study aims to identify risk factors for non-adherence in a cohort of people with solid and hematological tumors. Participants and Methods: This is a cross-sectional study in which participants were recruited from two Oncologic hospital units in Italy. The inclusion criteria were age ≥ 18 years, confirmed malignant neoplasm, and active treatment. Data included sociodemographic and clinical-oncological factors. Treatment adherence was assessed through a clinician-based dichotomous scale. Health-related quality of life (HRQoL) was evaluated with the Short Form Health Survey – 12 items (SF-12), satisfaction with care was measured using the Treatment Perception Questionnaire. Results: A total of 263 participants (132 females, 50.2%) was involved in this study. The mean age was 61.2±13.8. Non-adherence frequency was 9.9%. Factors associated with non-adherence were shorter time since care initiation (<6 months), receiving palliative care, having a solid cancer diagnosis. Non-adherence was higher in solid cancer (12.4%) compared to hematologic cancer (1.6%). In the combination of risk factors, a significant association was found between unemployment/high level of education and non-adherence. Conclusions: The study found a low non-adherence rate to oncological treatments, possibly due to strong psychological and spiritual support. However, individuals with higher education and unemployment showed specific non-adherence risk, necessitating attention to their emotional challenges while facing canc

    Homeostatic competition drives tumor growth and metastasis nucleation

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    We propose a mechanism for tumor growth emphasizing the role of homeostatic regulation and tissue stability. We show that competition between surface and bulk effects leads to the existence of a critical size that must be overcome by metastases to reach macroscopic sizes. This property can qualitatively explain the observed size distributions of metastases, while size-independent growth rates cannot account for clinical and experimental data. In addition, it potentially explains the observed preferential growth of metastases on tissue surfaces and membranes such as the pleural and peritoneal layers, suggests a mechanism underlying the seed and soil hypothesis introduced by Stephen Paget in 1889 and yields realistic values for metastatic inefficiency. We propose a number of key experiments to test these concepts. The homeostatic pressure as introduced in this work could constitute a quantitative, experimentally accessible measure for the metastatic potential of early malignant growths.Comment: 13 pages, 11 figures, to be published in the HFSP Journa

    Current status of intestinal transplantation in children

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    Purpose: A clinical trial of intestinal transplantation (Itx) under tacrolimus and prednisone immunosuppression was initiated in June 1990 in children with irreversible intestinal failure and who were dependent on total parenteral nutrition (TPN). Methods: Fifty-five patients (28 girls, 27 boys) with a median age of 3.2 years (range, 0.5 to 18 years) received 58 intestinal transplants that included isolated small bowel (SB) (n = 17), liver SB (LSB) (n = 33), and multivisceral (MV) (n = 8) allografts. Nine patients also received bone marrow infusion, and there were 20 colonic allografts. Azathioprine, cyclophosphamide, or mycophenolate mofetil were used in different phases of the series. Indications for Itx included: gastroschisis (n = 14), volvulus (n = 13), necrotizing enterocolitis (n = 6), intestinal atresia (n = 8), chronic intestinal pseudoobstruction (n = 5), Hirschsprung's disease (n = 4), microvillus inclusion disease (n = 3), multiple polyposis (n = 1), and trauma (n = 1). Results: Currently, 30 patients are alive (patient survival, 55%; graft survival, 52%). Twenty-nine children with functioning grafts are living at home and off TPN, with a mean follow-up of 962 (range, 75 to 2,424) days. Immunologic complications have included liver allograft rejection (n = 18), intestinal allograft rejection (n = 52), posttransplant lymphoproliferative disease (n = 16), cytomegalovirus (n = 16) and graft-versus-host disease (n = 4). A combination of associated complications included intestinal perforation (n = 4), biliary leak (n = 3), bile duct stenosis (n = 1), intestinal leak (n = 6), dehiscence with evisceration (n = 4), hepatic artery thrombosis (n = 3), bleeding (n = 9), portal vein stenosis (n = 1), intraabdominal abscess (n = 11), and chylous ascites (n = 4). Graft loss occurred as a result of rejection (n = 8), infection (n = 12), technical complications (n = 8), and complications of TPN after graft removal (n = 3). There were four retransplants (SB, n = 1; LSB n = 3). Conclusions: Intestinal transplantation is a valid therapeutic option for patients with intestinal failure suffering complications of TPN. The complex clinical and immunologic course of these patients is reflected in a higher complication rate as well as patient and graft loss than seen after heart, liver, and kidney transplantation, although better than after lung transplantation
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