1,894 research outputs found
Vertical transmission of antibodies in infants born from mothers with positive serology to COVID-19 pneumonia
Local treatment with electrochemotherapy of superficial angiosarcomas: Efficacy and safety results from a multi-institutional retrospective study
Background:
Angiosarcoma is an aggressive vascular neoplasm with a high propensity for local recurrence. Electrochemotherapy is an emerging
skin-directed therapy, exerting prominent cytotoxic activity, and antivascular effects. Its efficacy in angiosarcoma has not been investigated.
Methods:
This multicenter retrospective analysis reviewed patients who underwent electrochemotherapy from 2007 to 2014 for superficial
advanced angiosarcomas. Bleomycin was administered intravenously and delivered within tumors by means of percutaneously applied electric
pulses, according to the European Standard Operating Procedures for Electrochemotherapy. Tumor assessment was performed using RECIST
(version 1.1). Toxicity (CTCAE, v4.0) and local progression-free survival (LPFS) were also evaluated.
Results:
Nineteen patients (13 with locally advanced and 6 with metastatic angiosarcomas) were treated. Tumor sites were: scalp (n¼5), breast(n¼8), other skin sites (n¼3), and soft tissue (n¼3). Target lesions (n¼54) ranged in size from 1.5 to 2.5 cm (median, 2 cm). Treatment was well tolerated. After 2 months, an objective response was observed in 12/19 (63%) patients, complete in 8 (42%). One-year LPFS within treatment field was 68%. Local symptom improvement included palliation of bleeding (5/19 patients) and pain relief (6/19 patients).
Conclusions:
Electrochemotherapy may represent a new locoregional treatment for selected patients with superficial angiosarcomas
High intensity X/ γ photon beams for nuclear physics and photonics
In this manuscript we review the challenges of Compton back-scattering sources in advancing photon beam performances in the1−20MeVenergy range, underlining the design criteria bringing tomaximum spectral luminosity and briefly describing the main achieve-ments in conceiving and developing new devices (multi-bunch RF cav-ities and Laser recirculators) for the case of ELI-NP Gamma BeamSystem (ELI-NP-GBS)
Evidence that cells from experimental tumours can activate coagulation factor X.
The procoagulant activity of cells from some experimental tumours isolated in culture or in single-cell suspensions from ascitic fluid was investigated. Cells from Lewis lung carcinoma (primary and metastasis), Ehrlich carcinoma ascites and JW sarcoma ascites were able to shorten markedly the recalcification time of normal, Factor VIII- and Factor VII-deficient but not of Factor X-deficient human plasma. The same cells generated thrombin when mixed with a source of prothrombin and Factor X, absorbed bovine serum (as a source of Factor V), phospholipid and calcium chloride. Thrombin formation was not influenced by the presence of Factor VII. Cells from Sarcoma 180 ascites were completely inactive in both test systems. It is concluded that cells from some experimental tumours have the capacity to activate Coagulation Factor X directly. These findings suggest the existence of an alternative "cellular" pathway in the initiation of blood clotting distinct from both the intrinsic and extrinsic mechanisms
Mild Wolf-Hirschhorn phenotype in a girl with unbalanced t(4p;12p) translocation without seizures.
Long term outcome in children affected by absence epilepsy with onset before the age of three years.
OBJECTIVE: The goal of this study was to define the long-term outcome of absence epilepsy presenting before the age of 3 years.
METHODS: We retrospectively studied the medical records of 40 children from eight neuropediatric centers in Italy with respect to the personal and family histories of epilepsy or febrile seizures, time of follow-up, cognitive functions, treatment, and outcome.
RESULTS: Forty patients were enrolled in this study. They all fulfilled the criteria for absence epilepsy with 3-Hz spike-wave complexes on the EEG, normal neurological examination, and no other seizures types. Seizure onset occurred between 24.1 and 36.0 months. There was a family history of epilepsy in 28%, and of febrile seizures in 13%. Thirty-three patients were treated with valproic acid (VPA), mostly used in monotherapy (26 patients) or in association with ethosuximide. At final follow-up, 33 patients were seizure free and 29 had normal EEGs. Thirty-four patients had a normal intelligence quotient (IQ), whereas 6 had a decreased IQ, mainly associated with poor control of seizures.
CONCLUSION: In our series, absence seizures presenting before the age of 3 appeared to have quite a good long-term clinical prognosis; the neuropsychological outcome was comparable to that of childhood epilepsy presenting after 3 years of age
Crilin: A CRystal calorImeter with Longitudinal InformatioN for a future Muon Collider
The measurement of physics processes at new energy frontier experiments
requires excellent spatial, time, and energy resolutions to resolve the
structure of collimated high-energy jets. In a future Muon Collider, the
beam-induced backgrounds (BIB) represent the main challenge in the design of
the detectors and of the event reconstruction algorithms. The technology and
the design of the calorimeters should be chosen to reduce the effect of the
BIB, while keeping good physics performance. Several requirements can be
inferred: i) high granularity to reduce the overlap of BIB particles in the
same calorimeter cell; ii) excellent timing (of the order of 100 ps) to reduce
the out-of-time component of the BIB; iii) longitudinal segmentation to
distinguish the signal showers from the fake showers produced by the BIB; iv)
good energy resolution (less than 10%/sqrt(E)) to obtain good physics
performance, as has been already demonstrated for conceptual particle flow
calorimeters. Our proposal consists of a semi-homogeneous electromagnetic
calorimeter based on Lead Fluoride Crystals (PbF2) readout by surface-mount
UV-extended Silicon Photomultipliers (SiPMs): the Crilin calorimeter. In this
paper, the performances of the Crilin calorimeter in the Muon Collider
framework for hadron jets reconstruction have been analyzed. We report the
single components characterizations together with the development of a
small-scale prototype, consisting of 2 layers of 3x3 crystals each
Rufinamide in refractory childhood epileptic encephalopathies other than Lennox-Gastaut syndrome.
Background: To report on the first multicenter Italian experience with rufinamide as
adjunctive drug in children, adolescents and young adults with refractory childhoodonset
epileptic encephalopathies other than Lennox–Gastaut syndrome.
Methods: Thirty-eight patients (19 males, 19 females), aged between 4 and 34 (mean
13.7 ± 8.3, median 12.5), all affected by different types of childhood-onset refractory
epileptic encephalopathies other than Lennox–Gastaut syndrome, were treated with
rufinamide as adjunctive drug for a mean period of 11.4 months (range 3–26 months).
Results: Fifteen of 38 patients (39.5%) had a ‡50% seizure reduction in countable
seizures. Complete seizure freedom was achieved in one of these patients (2.6%).
Three patients (7.9%) had a 25–49% seizure reduction, whilst seizure frequency
remained unchanged in 15 (39.5%) and increased in five patients (13.1%). Eleven
patients (28.9%) reported adverse side effects. Vomiting was reported in five patients
(13.1%); drowsiness, decreased appetite and irritability with migraine manifested in
other four patients. They were transient and mild in all cases.
Conclusion: Rufinamide may be an effective and well-tolerated adjunctive drug for
the treatment of refractory childhood-onset epileptic encephalopathies other than
Lennox–Gastaut syndrome. Rufinamide was most effective in patients with dropattacks
and (bi)frontal spike–wave discharges.
Introduction
Rufinamide is a structurally triazole-derivative (1-[2,6-
difluorophenyl)methyl]-1hydro-1,2,3-triazole-carboxamide)
novel antiepileptic drug, structurally unrelated to
the existing antiepileptic drugs, and approved by the
Food and Drug Administration for the treatment of
Lennox–Gastaut syndrome in patients aged 4 and over,
and for the treatment of partial seizures in adults and
adolescents.
The proposed mechanism of action is the limitation
of excessiv
Algometry with a clothes peg compared to an electronic pressure algometer: a randomized cross-sectional study in pain patients
<p>Abstract</p> <p>Background</p> <p>Hypersensitivity of the central nervous system is widely present in pain patients and recognized as one of the determinants of chronic pain and disability. Electronic pressure algometry is often used to explore aspects of central hypersensitivity. We hypothesized that a simple pain provocation test with a clothes peg provides information on pain sensitivity that compares meaningfully to that obtained by a well-established electronic pressure algometer. "Clinically meaningful" was defined as a medium (r = 0.3-0.5) or high (r > 0.5) correlation coefficient according to Cohen's conventions.</p> <p>Methods</p> <p>We tested 157 in-patients with different pain types. A calibrated clothes peg was applied for 10 seconds and patients rated the pain intensity on a 0 to 10 numerical rating scale. Pressure pain detection threshold (PPdt) and pressure pain tolerance threshold (PPtt) were measured with a standard electronic algometer. Both methods were performed on both middle fingers and ear lobes. In a subgroup of 47 patients repeatability (test-retest reliability) was calculated.</p> <p>Results</p> <p>Clothes peg values correlated with PPdt values for finger testing with r = -0.54 and for earlobe testing with r = -0.55 (all p-values < 0.001). Clothes peg values also correlated with PPtt values for finger testing with r = -0.55 (p < 0.001). Test-retest reliability (repeatability) showed equally stable results for clothes peg algometry and the electronic algometer (all r-values > 0.89, all p-values < 0.001).</p> <p>Conclusions</p> <p>Information on pain sensitivity provided by a calibrated clothes peg and an established algometer correlate at a clinically meaningful level.</p
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